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  • Articles  (2,038)
  • American Association for the Advancement of Science (AAAS)  (1,646)
  • American Association of Petroleum Geologists (AAPG)
  • Emerald
  • Frontiers Media
  • 2020-2022
  • 1995-1999  (2,038)
  • 1998  (2,038)
  • Physics  (1,646)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (302)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (90)
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  • Articles  (2,038)
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  • 2020-2022
  • 1995-1999  (2,038)
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  • 1
    Electronic Resource
    Electronic Resource
    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 5-10 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Individuals who ascend to altitude too rapidly invariably develop acute mountain sickness (AMS) although a high carbohydrate diet may lessen these symptoms. Specific questions addressed in this study were: changes in diet prior to sojourning at altitude; changes in food consumption/nutritional intake, food acceptability, flavour and taste intensities. Nineteen subjects assembled for three days at sea level for baseline measurements consuming a diet of dehydrated rations. This regimen was repeated 18 days later in the Bolivian Andes at approximately 5,600m once subjects were acclimatised. Results confirm a common phenomenon; a reduced dietary intake and body weight loss at high altitude. Other results, flavour and taste intensities and overall food acceptability indicate the suitability of these foods in both environments.
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  • 2
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 138-144 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The issues of microbial food poisoning are never far from the headlines. Of particular concern is the emergence of strains of increased virulence, for example Escherichia coli 0157. As we are likely to be faced with a succession of food hygiene challenges in our kitchens, do consumers have access to the information they need and is it presented in such a way that it encourages and motivates towards good food handling and food hygiene practices? This paper concentrates on a range of food hygiene information provided by the Government, the Health Education Authority and the media. The information is examined with respect to availability, content and context. Observations are made from sociological, scientific and visual communications perspectives.
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  • 3
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 260-266 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A review of the food safety implications of crops contaminated by mycotoxins. Each of the most important mycotoxins, aflatoxins, ochratoxin A, and patulin, are described individually with details of national and international safety evaluations and the UK's controls to protect consumer safety. The state of play of EC proposals to harmonise national laws on mycotoxins is also described. Consumer perceptions of risk from these natural toxicants are assessed. Mycotoxins present a potential threat to consumer safety. Continued vigilance is necessary to ensure that regulatory and advisory limits are complied with. MAFF surveys regularly check the foods most at risk of contamination and where a problem is unearthed, consumers and industry are alerted as soon as possible through rapid publication procedures. Subsequent monitoring of the situation ensures that effective action is taken to protect consumer safety.
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  • 4
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 193-197 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The paper describes the results of consumer research undertaken by the Co-operative Wholesale Society which influenced it to develop a code of practice for labelling pre-packed foods. Areas where consumers feel they are misled by current labelling practice are highlighted. The content of the code is described against a background of current legal requirements. Its principal areas of application concern the name of the food, origin marking, presentation, nutrition labelling and claims and quantitative ingredient declaration. The further development of the code is outlined by reference to industry and consumer contributions and its potential within the Food Standards Agency.
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  • 5
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 198-201 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Discusses the proposals for reform of the Common Agricultural Policy (CAP) contained in the European Commission's Agenda 2000 document in the context of previous reforms of the CAP and the GATT Agreement on Agriculture. Identifies the obstacles to CAP reform and the problems of extending the policy to embrace the countries of Eastern and Central Europe.
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  • 6
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 223-226 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A proposal for the addition of yeast in routine and clinical diets for optimal nutrition of human beings was made on the premiss of its salubrious effects in laboratory and farm animals. The strong points in favour of the supplement are its ancient use in brewery and bakery production for human consumption, its cultural acceptability and freedom from pathogenicity, allergenicity, toxicity or carcinogenicity. Recommendations for clinical trials with humans were made to confirm a list of tentative advantages obtained in trials with animals.
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  • 7
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 253-259 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Discusses the financial implications of maintaining acceptable levels of food safety. The case of BSE is used as an example - loss of export market, fall in domestic sales, changes in consumption, large expenditure, cost of practice changes in rearing and slaughtering animals. There is a trade-off between safety and costs. How much safety can be expected? There must be an optimum level of safety. There are few ways in which a market economy can "fail" in providing the optimum - asymmetry in knowledge of risks; aspects of food safety which are public goods; social costs of food safety and the divergence between objective scientific evidence and consumer perception.
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  • 8
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 275-279 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Presents the compositional and spoilage changes in fish - useful for determining the freshness for eating. Chemical and microbiological methods are focused on. Breakdowns in chemical components lead to detectable changes - odour, flavour and texture. Changes to the fats, protein, nucleotides, non-protein nitrogen compounds and enzymes are examined. These means are more valid when dealing with preserved and frozen fish and can give accurate assessment as to fish quality.
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  • 9
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 314-319 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Examines the history of coffee drinking. Describes the constituents of coffee and its physiological effects on the drinker. Reviews the research done in the past on caffeine's effects on health. Recommends a safe level of consumption at between 300-400mg of caffeine per day which translates to four or five cups of average strength coffee.
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  • 10
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 325-329 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Covers the quantitative and qualitative aspects of micro-organisms present in fish and the factors which affect sea food quality. Several methods can be employed to counter deterioration - low temperature, storage, dehydration, canning, modified atmosphere, packaging, irradiation and chemical or biological preservatives.
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  • 11
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 330-334 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: In the food and retailing sector only 25 per cent of companies were found to operate waste minimisation programmes. The benefits of waste minimisation are well proven in both financial and environmental terms. Large food companies have found they can make savings of millions of pounds by implementing waste minimisation strategies.
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  • 12
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 335-337 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: It is well documented that women are prone to constipation-type symptoms premenstrually. An increase in non-starch polysaccharide intake of 5.9 g/d in the form of palatable drink has proved to be of symptomatic benefit during the premenstrual phase of the cycle resulting in a significant increase in stool frequency, significant decreases in straining at the end of defecation and feelings of incomplete evacuation and the production of less well formed stools.
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  • 13
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 338-342 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The aim of the present study was to reveal if sensory properties of smoked food could be considered as decisive in the determination of one product's preference over another. In addition to this, this work tries to clarify whether the flavour obtained in commercial smoked products was noticed and clearly recognized. This study consisted of two parts; first, a preference testing without physical products (recalled preference) presented using a nine-point hedonic scale, and second, a difference testing with selected products using the triangular test. Consumers showed a preference for non-smoked products, particularly for cheese, sausages and chips. The first preference dimension of the internal preference mapping (MDPREF) analysis accounted for 74.6 per cent of total variation indicating overall agreement about likings relating these products, with cheese being the most acceptable overall. Analyzing triangular test results it may be concluded that other factors but sensory ones must be defining consumer representations of smoked food, without a correspondence with its real organoleptic properties.
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  • 14
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    Bradford : Emerald
    British food journal 100 (1998), S. 236-243 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This paper aims to identify and describe the determinants of consumer attitudes towards artisanal cheeses within the speciality cheese market and the reasons behind the growing interest in this premium value sector as evinced by two surveys of specialist food retailers and artisanal cheese consumers. The survey results obtained are presented in the context of a changing consumption culture and the concept of an emerging "postmodern" consumerism. Artisanal cheese consumers focus on the unique characteristics of the products and their distinctive character in relation to mass produced industrial cheeses. Price and functional properties of artisanal cheeses are less important in the consumer purchase decision. Artisanal cheese consumers are characterised by "variety seeking" behaviour. This is stimulated by the broad range of available flavours, tastes and cheese types and suggests a low degree of brand or even cheese-type loyalty among such consumers. The "plural" nature of the "speciality" cheese market accommodates well the highly individual and fragmented requirements of consumers of artisanal cheeses.
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  • 15
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    Bradford : Emerald
    British food journal 100 (1998), S. 254-259 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: It has been suggested that habitual consumers of sugar experience "cravings" when deprived. Subjects (n = 27) who habitually consumed sugar-sweetened drinks were placed on a seven-day regime receiving either sugar-sweetened drinks, or aspartame-sweetened alternatives. A between-subjects design was used to prevent subjects comparing the drinks, which were given blind with the cover story that the study was testing a new drink. In fact commercial carbonated beverages were given. At the end, subjects were unable to guess which they had received. Subjects completed a prospective food diary and rated mood daily using the Profile of Mood States, as well as before and after each test drink, using simple visual analogue scales. Compared to subsequent days, on the first day of the study subjects receiving aspartame-sweetened drinks ate fewer grams of carbohydrate and had fewer sugar episodes (where sugars, or sugar-fat, or sugar-alcohol mixtures were consumed). Overall energy intake for the day was unaffected. By day two, there were no differences between the groups in diet or mood. Body weight at seven days was unaltered from baseline. Blind substitution of aspartame-sweetened for sugar-sweetened soft drinks did not increase other sugar consumption and did not adversely affect mood. Any effects of this dietary change appear transient.
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  • 16
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    Bradford : Emerald
    British food journal 100 (1998), S. 295-301 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The paper analyses data from the British Health and Lifestyles Survey of 1984/5 and the follow-up survey of 1992. It attempts to break down a large number of food consumption patterns into a smaller number of interpretable factors or tastes which are then used in statistical regression models to analyse the determinants and changes in the strengths of these tastes over time. The results show that the nature of change has been contradictory when looked at from a health-based perspective. Some tastes are changing in a healthier direction, while others are not. Social class, age, and gender are all shown to be significant determinants of taste in both time periods.
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  • 17
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    Bradford : Emerald
    British food journal 100 (1998), S. 320-325 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The study reports on a small-scale survey of teenagers' preferences for a selection of pre-prepared foods sold by the school cash cafeteria, nutritional knowledge towards fat, attitudes to nutritional labelling of school food and their intended change in eating behaviour prompted by nutritional labelling. Results suggest that the provision of simple nutritional labelling information on school meals in cash cafeterias in secondary schools could have a positive influence on children's choices of fat in school food and be a valuable educational resource to help in the long-term aim of reducing fat consumption for the whole UK population.
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  • 18
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    Bradford : Emerald
    British food journal 100 (1998), S. 326-336 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Based on the responses to a questionnaire about consumer behaviour carried out in Navarra. The aim of the present study is to classify the consumers in Navarra into homogeneous groups for the purpose of discovering the emergence of a "new consumer", characterized by certain "impulsive" behaviour such as buying items that are not needed, purchasing products which will not be used, etc.
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  • 19
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    Bradford : Emerald
    British food journal 100 (1998), S. 433-550 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Describes the life history of the British Food Journal, its changing editorial team, ownership and editorial focus. The authors have used much wider source material than the archives of the journal, now in its 100th year. The journal was always closely identified with the safety of food, its adulteration and the government's duty to safeguard the public. The second section reviews the profession and role of the public analyst, in particular the history and development of the Society of Public Analysts. The next and longest section of the monograph is devoted to an interesting examination of food safety, nutrition and food manufacturing issues over the last 100 years. Many of the points raised are illustrated by excerpts from papers written in BFJ and included as Appendices to the monograph. Food irradiation was first raised as a subject in the journal in 1928! Bread and milk as staples in the British diet are looked at in some detail in terms of their ingredients and health properties. Some appendices have been included just for interest and provide brief snapshots of some of the main food concerns of the time, e.g. The Pure Food Society, the food we eat, food poisoning, a world food policy, the packaging of foods, food hygiene. Plus ça change ...
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  • 20
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    Bradford : Emerald
    British food journal 100 (1998), S. 154-161 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Tightened UK land-use planning regulation governing retail development, specifically the 1993 and 1996 revisions of the Department of the Environment's PPG6 Town Centres and Retail Developments, appeared to usher in a new era of more restricted and redirected food store expansion. This paper explores to what extent that restriction and redirection has occurred, sifts rhetoric from "reality" in the intense debates that have surrounded PPG6, poses alternative interpretations of the contemporary food store development dynamic, and assesses the food choice implications of these developments.
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  • 21
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    Bradford : Emerald
    British food journal 100 (1998), S. 201-207 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The recent history of Poland is characterised by the process of transition from the centrally planned to a market-oriented economy and by the new challenge of preparing for joining the EU. Several authors indicate that Polish consumers are more and more similar to European consumers in terms of consumer behaviour. The research under consideration aims to identify similarities and differences between Polish and Belgian consumers with respect to consumer behaviour towards yoghurt. The choice of the dairy product yoghurt as a research subject is based on its remarkable consumption increase and product innovation rate during the previous decade. A survey of 400 respondents in the urban regions of Gent (Belgium) and Olsztyn (Poland) reveals statistically significant differences in consumption frequency, perception of product attributes and consumer attitude and preference towards yoghurt. The process of cross-national data gathering and analysis identifies topics of interest to food companies and marketeers seeking to enter markets in Central and Eastern Europe.
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  • 22
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 30-37 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A nutritional analysis of the weekly menus from 24 residential homes was conducted and information gathered by questionnaire on the planning, preparation and service of meals. The nutritional standard of the menus complied with many of the nutritional guidelines in the Caroline Walker Trust (CWT) Report (1995). Meals, if eaten, would provide sufficient energy and nutrients to meet most of the dietary needs of the elderly residents. However, the menus provided an inadequate amount of starch, fibre and Vitamin D and a higher than recommended level of sugar and salt. Menus complied with the recommendations in the CWT Report, with familiar traditional home cooked dishes, a variety of vegetables, different main course items and a selection of puddings. Adequate drinks and snacks were provided between formal meals. However, for many residents there was no choice at meals, meals were pre-plated and there was a lack of variety with weekly repeated meals.
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  • 23
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    Nutrition & food science 98 (1998), S. 73-79 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The numbers of reported cases of Listeria particularly Listeria monocytogenes in the UK have remained at a relatively low level since the peak which occurred in 1988-1989. The majority of cases are sporadic and often the source of contamination is unknown. This study investigates the possibility that the home environment, which has previously been found to be the most common place of contamination for other bacteria, also provides a reservoir for human infection by Listeria monocytogenes and other Listeria spp.
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  • 24
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 84-86 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Experimental studies were undertaken at Hollings Faculty, Manchester Metropolitan University, whereby soybean curd or tofu was incorporated into a range of sauces and casserole products. The newly developed products were then subjected to taste, texture and overall acceptability acceptance by targeted groups of consumers. The results of the study indicate that the potential market for tofu in the UK has not been fully exploited.
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  • 25
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    Bingley : Emerald
    Nutrition & food science 98 (1998), S. 90-94 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Discusses the plant-based alternatives to meat. Looks at the production and uses of a range of meat alternatives from different sources including: soya beans; wheat protein; pea and wheat protein; and myco-protein. Compares the nutrient profiles with those of meat. Concludes that the way forward is to create new products based on plant proteins and to veganise existing vegetarian meat alternatives.
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  • 26
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    Nutrition & food science 98 (1998), S. 95-98 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Provides the background to ongoing research and the last decade's trends in consumer attitudes to health and food. Based on findings from the National Health Survey (UK) of women's attitudes to health focusing specially on food and drink. A total of 1,800 interviews are annually undertaken of a representative sample of women. Key issues over the last ten years have been salmonella and eggs, listeria, additives in food, fats in food and beef. All have led to changes in attitudes and behaviour change.
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  • 27
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    Nutrition & food science 98 (1998), S. 41-48 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Describes multiple comparison procedures applied to three or more sample groups after ANOVA. Illustrates ANOVA applied to experiments with completely randomised design and randomised block design.
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  • 28
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    Nutrition & food science 98 (1998), S. 80-83 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Weed control is essential in field vegetables but there has been a continual decline in the range of herbicides available. Growers aim to keep crops weed-free throughout to maintain yield, but a short weed-free period or even a single weeding can achieve the same result. In order to predict the optimum weeding period in advance, a realistic estimate is needed of the size, timing and duration of a flush of weed emergence in the crop. The weed seeds in the soil are the primary source of future weed populations, and this seedbank provides a unique resource for predictive management purposes. A preliminary model has been developed that combines information on the effect of burial depth of weed seeds on seedling emergence with a simulation of the incorporation and movement of seeds in soil following the use of different cultivation implements. The objective is to develop a suite of models which will provide a decision support system for weed control in field vegetables.
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  • 29
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    Nutrition & food science 98 (1998), S. 87-89 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summarises the reasons behind the formation of a network and support group for self-employed nutritionists (SENSE). Discusses the pros and cons of self-employment, and shows how the formation of SENSE is one way in which a con can be turned into a pro. Gives points of contact for potential members and users of the services that SENSE members offer.
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  • 30
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    Nutrition & food science 98 (1998), S. 102-108 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Describes non-parametric methods applied to comparisons of three or more sample groups.Illustrates non-parametric ANOVA applied to a randomized block design for a consumer sensory experiment.
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  • 31
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    Nutrition & food science 98 (1998), S. 133-134 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Commissioned by the Ministry of Agriculture, Fisheries and Food, the Department of Health and carried out by Social and Community Planning Research and MRC Dunn Nutrition Unit, the dental hospitals of the Universities of Newcastle and Birmingham and the Department of Epidemiology of the University of London, this research forms part of the National Diet and Nutrition Survey. Set up in 1992 the surveys cover representative groups of the population and examine the diet of the over-65s in terms of actual dietary intake, habits, energy and nutrient intakes, physical measurements. Regional and socio-economic comparisons are made.
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  • 32
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    Nutrition & food science 98 (1998), S. 11-13 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This brief article, based on a careers talk to postgraduate students, outlines the role of the nutritionist in industry, and some of the skills, responsibilities and qualities needed. According to the Nutritionists in Industry Group, the last few years have seen substantial growth in the numbers of nutritionists and dietitians employed by the food and drink, medical, catering and other food-related industries. The job description of individuals employed by these companies and associations is extremely diverse and some nutritionists who are working alone may be expected to fulfil many different roles. Ultimately, nutritionists are employed by industry for their unique expertise and knowledge of current nutrition issues.
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    Nutrition & food science 98 (1998), S. 38-40 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Discusses the need for a food guide for vegans. Looks at the nutritional information and advice found in current popular vegan cookery books, including: sample menus; food groupings; food descriptions and recipes. Suggests a possible approach to a vegan food guide (VFG) incorporating foods suitable for this group. Concludes that more work needs to be undertaken in this area to develop the VFG and to ensure that the VFG is made readily available to vegans.
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  • 34
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    Nutrition & food science 98 (1998), S. 49-50 
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    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Reviews the recent Department of Health announcement on the safe intake of Vitamin B6. This announcement is a landmark since it distinguishes between levels of nutrients taken as nutritional supplements and those taken as drugs and prescribed.
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  • 35
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    Nutrition & food science 98 (1998), S. 19-29 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Public opinion regarding the application and development of genetic engineering is likely to be an important factor influencing the future development of the technology, and its subsequent application within the commercial sector. Recent studies have been carried out which have assessed public attitudes to biotechnology, and in particular genetic engineering, but there is little empirical work to understand cross-cultural differences in attitudes, other than that using an opinion poll methodology, particularly in a cross-cultural context. This study seeks to compare public concerns assessed by a combination of qualitative and quantitative analysis in the UK and Italy. The results show that, despite the fact that Italians used a poorer vocabulary to describe their concerns compared to the British respondents, both samples clustered the applications in a similar way. Perceptions of need and benefit were important in both Italy and the UK as determinants of acceptance of particular applications. However, while negative constructs in Italy were predominantly focused on ethical issues, respondents in the UK focused on both risk-related issues and ethical considerations; nevertheless, the pattern of concern regarding different applications were similar in both countries.
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  • 36
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    Nutrition & food science 98 (1998), S. 99-101 
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    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Outlines the key concerns of diet before and during pregnancy for the health of the mother and baby. Various important components and concerns of a suitable diet for pregnancy are explained - folic acid, energy intake, calcium, iron, fibre, vitamin A and essential fatty acids.
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  • 37
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    Nutrition & food science 98 (1998), S. 158-162 
    ISSN: 0034-6659
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Explores the background to the launch of a new qualification in public health nutrition - Registered Public Health Nutritionist (RPHNutr) - in the UK. This new qualification was led by the Nutrition Society and aims to set professional standards, promote the recognition of the need for such expertise, promote the role, create links with other relevant bodies, and provide a publicly available register of qualified people. Defines the role of public health nutritionist and outlines the requirements for accreditation.
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  • 38
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    Nutrition & food science 98 (1998), S. 185-192 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Accumulated evidence shows that breast-feeding not only is beneficial for normal growth and infant development, but also provides a measure of protection against a number of diseases. Few women are unable to breast-feed but the UK is noteworthy for having one of the lowest breast-feeding rates in Europe. This paper reports a survey of 50 pregnant women and analyses factors associated with their stated feeding intentions. Over the years, a number of papers have investigated aspects of decision making but this study offers a snapshot of intention in the late 1990s and pessimistically concludes that any behavioural change is hard won. By the time that the women came into contact with midwives, feeding intentions were clearly established and professional procedures were not able to offer effective intervention.
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  • 39
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    Nutrition & food science 98 (1998), S. 207-211 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The USA in 1997 raised the reference dietary intakes of calcium for adults and children. These include estimated average requirements (EARs), recommended dietary allowances (RDAs), adequate intakes (AIs) and tolerable upper intake levels (ULSs). These new values were designed to optimise health and minimise risk of major chronic disease. For children they aim to maximise calcium retention, for adults 31-50 they aim to achieve a calcium retention. The US recommendations are significantly higher than the British. Emphasises the need for high calcium intakes during phases of rapid growth; stresses how deficits in calcium accretion may never be reversed. Research supports the benefits of increased calcium intake.
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  • 40
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    Nutrition & food science 98 (1998), S. 212-222 
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    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This paper evaluates the Nutrition Intervention Project (NIP) implemented statewide in the State of Virginia to determine the effectiveness of nutritional intervention in decreasing pre-term births and low birth weight (LBW) babies to at-risk pregnant women in urban and rural areas. Sample size was 1,284. Majority of the respondents were white, primiparae, between 20-29 years of age, and underweight (BMI 〈 19.8). Twenty-one per cent of the of the births were pre-term, and 13.3 per cent were in the LBW category. Regression analysis indicated that number of visits to the nutritionist was positively associated with birth weight and gestational age of the baby. Nutrition intervention (NI) decreased the smoking behaviour and improved the intake of iron supplements, both of which improved the weight gain and pregnancy outcomes. Effects analysis indicated that the causal effect operated both via intervening variables as well as directly between nutritional intervention and pregnancy outcomes. The path from NI to birth outcomes via weight gain was the strongest. Respondents in urban areas had a higher risk of pre-term births than rural areas.
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    Nutrition & food science 98 (1998), S. 272-274 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This article focuses on the tendency of women to suffer from constipation-type symptoms premenstrually. It is suggested that these undesirable changes in bowel habit may be mediated through raised progesterone levels and decreased intakes of dietary fibre. Dietary reference values for non-starch polysaccharide are questioned.
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  • 42
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    Nutrition & food science 98 (1998), S. 310-313 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Outlines the function of the Pesticides Safety Directorate of the UK. This directorate is an Executive Agency of MAFF and aims to protect the health of people, animals and plants; safeguard the environment and secure safe, efficient and humane methods of pest control. The PSD advises ministries on the development, implementation and enforcement of policy and manages a large R&D programme into pesticide use and alternatives.
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  • 43
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    Nutrition & food science 98 (1998), S. 306-309 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: European regulations for labelling the genetically modified commodity crops Round-up Ready Soya and Bt Maize have been agreed and came into force on 1 September 1998. The regulation requires labelling of ingredients that contain genetically modified DNA or modified protein. Labelling is not required where processing has resulted in modified DNA or protein being destroyed. With the aim of providing consumer information and ensuring consumer choice, UK industry had phased in labelling of genetically modified soya and maize protein since January 1998, ahead of the EU regulation being agreed. This voluntary labelling was on the basis of guidelines drawn up by an IGD Working Group. The voluntary guidelines are very similar to the EU labelling regulation. Under the terms of the labelling regulation, further discussions are necessary in Europe to agree a list of ingredients that will not require labelling on the basis that no modified DNA or protein is present, with the aim that these ingredients do not need to be tested each time they are used. Where efforts have been taken to source the non-genetically modified varieties, the concept of a threshold has been put forward to allow for adventitious mixing with the genetically modified crop. Further discussions are necessary to agree where the threshold should be set. It is expected that the regulation will be the basis for labelling future genetically modified products.
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  • 44
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    British food journal 100 (1998), S. 371-379 
    ISSN: 0007-070X
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Statistical process control (SPC) is a common feature of quality control in most high volume manufacturing processes. In the food industry, while there is no explicit compulsion for organisations to make use of SPC techniques, their usage can accrue the same benefits as in other industry sectors. Discusses the potential for application of SPC within the industry, and presents the results of a nationwide survey of 200 food processing companies, indicating relatively low levels of SPC usage. Three case studies are presented, which outline three typical approaches to SPC in the food sector, e.g. those organisations which make effective use of SPC in some form; those that do not perceive a need for it; and those that recognise its potential, but are unable to implement it effectively, owing to a lack of in-house expertise or advisory literature. Suggests ways in which the use of SPC might be promoted and encouraged within the industry.
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  • 45
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    British food journal 100 (1998), S. 18-24 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Manufacturers in the food processing industry cope with an increasing number of demands of their customers with regard to the numbers of products, delivery, etc. Therefore, scheduling in these industries is difficult and time consuming. Develops and applies a frame for structuring the underlying complexity for scheduling via a case study. Develops two concepts: process routeing and capacity group. Discusses their use in other situations.
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  • 46
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    British food journal 100 (1998), S. 49-57 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Despite showing a sensitivity towards Indian culture that included replacing the Big Mac with the mutton Maharaja Mac, McDonald's fledgling Indian operation faced nation-wide protests. Meanwhile, the Kyrgyz Shampany Joint Company, a monopoly wine producer in the former Soviet Republic, was facing spiralling production costs as local grape harvests failed. It looked to exports to the neighbouring Republic of Kazakhstan to increase turnover but what could it expect from that market? These two case studies illustrate the possible dangers for practitioners seeking new markets. The final section of the article re-investigates the marketing literature and reviews present methods of the application of marketing concepts to clarify where the stumbling blocks lie. The conclusions from this review are used to propose a new framework for the congruent mapping of marketing mix elements and variables at both strategic and tactical level.
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  • 47
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    British food journal 100 (1998), S. 102-109 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Using basket analysis, a methodology is presented to investigate the healthiness of particular household diets. The analysis was applied to "Homescan" panel data relating to 11,000 households. This breakdown was then cross-related to geodemographic classifications using "MOSAIC" groups. The degree or extent of unhealthiness was determined on the basis of percentage swing away from recommended dietary patterns in terms of indicator foods belonging to five groups (dairy, meat, vegetables, fruit and bread and cereals). The consumption of fats was also monitored. It was found that 8 per cent of households had diets that were labelled "unhealthy", based on standard recommendations for healthy eating. A further 20 per cent of households had "relatively unhealthy" diets. The majority of these households were shown to belong to the "suburban semis" group in the MOSAIC classification.
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  • 48
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    British food journal 100 (1998), S. 128-132 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Many food choices are not centrally concerned with food and, even where they are, they do not necessarily relate to the nutritional functions of food. In this paper we report on the findings of a longitudinal interview study of infant feeding practices among first-time mothers. In feeding their babies, mothers are engaged in a number of different projects, some of which conflict with expert guidance on the nutritional benefits of feeding babies in particular ways. We report on the symbolic and practical purposes which feeding babies in particular ways can serve for women, as they seek to combine infant feeding with their other responsibilities not only as mothers but more generally inside and outside the home. We conclude that women's infant feeding decisions represent their attempts to reconcile these symbolic and practical tasks and that educational and other interventions which ignore these competing agendas are likely to fail.
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  • 49
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    British food journal 100 (1998), S. 133-140 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: There is widespread concern that children consume too few fruit and vegetables and as a result are likely to incur health problems. This paper outlines a series of studies in which an intervention that combines video-based peer modelling with rewards has been shown to be very effective in enabling children to eat a variety of fruit and vegetables that previously they rejected. These effects have been very substantial and long lasting. The procedure has been used successfully in children's own homes and, as this paper shows in particular detail, in school settings.
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    British food journal 100 (1998), S. 162-167 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This article argues for a biographical and geographical understanding of foods and food choice. It suggests that such an approach highlights one of the most compelling characteristics of food - that being the way in which it connects the wide worlds of an increasingly internationalised food system into the intimate space of the home and the body. More specifically, and based on ongoing empirical research with 12 households in inner north London, the article explores one aspect of food biographies, through an interlinked consideration of what consumers know of the origins of foods and consumers' reactions to systems of food provision. It concludes that a structural ambivalence can be identified, such that consumers have both a need to know and an impulse to forget the origins of the foods they eat.
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    British food journal 100 (1998), S. 3-9 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The prevalence of obesity in China is currently one of the lowest in the world, but it is increasing, particularly in urban areas. The incidence of obesity in China is approximately four to five times lower than in the UK and USA respectively. Several dietary studies have found that dietary fat consumption in China is lower than in Western countries, but is currently increasing. In addition, Chinese in more affluent countries such as Hong Kong, Taiwan, and Singapore, and Chinese immigrants in the USA are consuming greater amounts of dietary fat than Chinese in China. This increased intake of fat in Chinese is probably due to transition from the traditional Chinese eating patterns to those typical of Westerners. The change in overall dietary intake is likely to have an impact on obesity, health and economy of these nations. This is an appropriate time to examine the relationship between diet and obesity with special reference to Chinese communities in different parts of the world.
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  • 52
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    British food journal 100 (1998), S. 25-29 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Though the Pacific-rim countries like China, Hong Kong and ASEAN countries will soon constitute an economic power comparable to that of North America and Europe, most of the empirical work on food labelling is related to the US and UK consumers. Research into nutrition label usage in a Chinese socio-cultural context is not found. To redress this imbalance, this study attempts to appreciate the use of nutrition information labels by Chinese consumers in Hong Kong. The research results reveal that the frequent label users are label-oriented, nutrition-prone, advertising lovers, in the age group 35-50, and they read both English and Chinese, whereas the non-frequent label users are home-oriented and can read only Chinese.
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    British food journal 100 (1998), S. 96-101 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A computer analysis of the Italian canned meat market and a synthesis to bring out the salient factors to develop a strategic approach and definition of operating activities. Qualitative studies reveal a strong resistance in consumer attitudes, mainly due to prejudice. However, the recent research helps in the interpretation of these attitudes towards the canned meat market.
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  • 54
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    British food journal 100 (1998), S. 110-118 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This paper illustrates how an understanding of consumer models, psychological processes and the appropriate use of marketing research techniques can help in the design of food packaging and label copy to provide a company with a competitive advantage. The paper examines the significance of the marketing functions of a pack and the perceptual processes of consumers in their information search concerning pack design and labelling in marketing research. Case study material is introduced to help illustrate the main points.
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  • 55
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    British food journal 100 (1998), S. 312-319 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Gaining competitive advantage in retailing requires knowledge of the attributes consumers use to evaluate stores and an understanding of why these attributes are important. Although a number of store-image studies have identified store attributes, evidence suggests that these attributes vary by store type and over time, but no work has considered the most crucial aspects to retailers, namely store loyalty. As no study has examined the links between store attributes and store loyalty, our knowledge remains largely speculative. This article explores this link using Kelly's repertory grid methodology to assess the store images of three UK grocery retailers. Important differences were seen between primary store-loyal customers' perception of their store and secondary store-loyal customers' perception of that store. For example, primary-loyal Tesco customers perceived quality, convenience and value factors in that order of importance, whilst primary-loyal Kwik-Save customers perceived quality, value and convenience factors when considering Tesco. Implications for retail positioning strategies and the development of store loyalty are discussed.
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    British food journal 100 (1998), S. 337-342 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A range of flavoured vegetables has been produced by a food retailer with a view to helping children increase their vegetable consumption. The flavouring ingredients used in these vegetable products (chocolate flavoured carrots, cheese and onion flavoured cauliflower, baked bean flavoured peas and pizza flavoured sweetcorn) inherently alter the overall nutrient profile. Products contain considerably more non-milk extrinsic sugars and salt than their plain counterparts as well as added flavours and artificial sweetener. The flavoured vegetables and their plain counterparts were scored for appearance, flavour, texture, and odour by 33 pupils aged 12-13 years. Chocolate flavoured carrots, baked bean flavoured peas and pizza flavoured sweetcorn scored significantly lower on appearance (and flavour for pizza flavoured sweetcorn) than their plain counterparts. A preference for the odour of the cheese and onion flavoured cauliflower compared to the plain cauliflower was seen but there were no significant differences in any other attribute. Thus for this age group we may conclude that this range of flavoured vegetables is unlikely to be any more acceptable than plain boiled vegetables.
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  • 57
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    British food journal 100 (1998), S. 364-370 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The increasing incidence of food-borne diseases emphasises the importance of improving and maintaining a high standard of food safety in food service establishments. Currently, a proposal to develop an Australian national food hygiene standard based on the hazard analysis and critical control point (HACCP), principles, is being discussed by major stakeholders with a view to improving the standard of food safety. Notes that food service representatives are naturally supportive of high standards of food safety, but feel the costs associated with HACCP-based food safety are prohibitive for small businesses, and they advocate that the costs of staff training in food safety be borne by the entry level employee. Reports on the diverse standards of hygiene found in a cross-section of food service establishments in south-east Queensland, Australia. Hygiene standards were found to be satisfactory in only ten of the 19 sites surveyed. Small restaurants and hotel/clubs compared unfavourably with larger food service providers, (which included cafeterias, hospitals, resorts and a contract airline caterer). As the food service industry is still dominated by small operations, these findings suggest that there are major challenges ahead in devising a national food hygiene standard which will be accepted and be implemented by this sector.
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    British food journal 100 (1998), S. 397-404 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Global sourcing is undoubtedly one of the major symbols of current worldwide strategies. Although much has been written on manufacturers' ploys in searching for more competitive and/or reactive foreign suppliers, this is not the case for retailers, surely because retail buyers do not wish to speak about an issue deemed politically sensitive. The objective of this paper is to try to remedy partially this lack of information from field studies conducted on French food retailers. Based on Williamson's "transactional paradigm", the paper analyses how the retailers have known - or not - how to implement structures and to develop strategic behaviours to reduce the risk linked to global sourcing, from experience acquired in distribution channel management on the domestic market.
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    British food journal 100 (1998), S. 10-17 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The objectives of the study are to examine consumer attitudes to mail-order speciality food products on the basis of a survey of mail order shoppers. The particular question which is addressed in the paper is concerned with the benefits perceived by mail-order speciality food customers. Specifically, it identifies the perceived benefits associated with mail-order, then establishes the underlying dimensions of these benefits and, finally, investigates the existence of customer segments on the basis of benefits sought. Consumers' perceptions of the benefits of mail-order emphasise quality, uniqueness and convenience. However, underlying these attributes are four main dimensions of customer relations and service, convenience, nostalgia and uniqueness. Furthermore, it is possible to identify two consumer segments of active mail-order shoppers in terms of a product-oriented group and a mail-order-oriented group.
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    British food journal 100 (1998), S. 380-384 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Describes the development of the Healthy Schools Award in Hampshire. The award scheme has been developed by an alliance of pilot schools, health authorities, education inspectors and advisers. Offers schools an opportunity to develop a focus and a framework for cross-curricular planning and the delivery of health education. Gives an account of two successful projects resulting from the scheme. One is the Family Food Challenge, a teaching pack for schools which contains ten challenges for children and their families to teach them the significance and benefits of adequate nutrition. The second is the Food Forum, a primary school project which aims to improve the school's philosophy relating to healthy eating.
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    British food journal 100 (1998), S. 413-418 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This paper reports the results of a recent online survey of consumer attitudes toward selected US online storefronts marketing barbecue sauce, cheese, olive oil, and potato chips as well as international companies marketing an assortment of specialty food products. It describes the relationship between consumer attitudes toward a commercial WWW site and likelihood of purchase as well as demographic factors which are related to online purchasing behavior of food and drink products.
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  • 62
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    British food journal 100 (1998), S. 76-84 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Seeks to emphasise the importance of branding in the European beer market. Attention is consigned to assessing the implications of effective branding within the context of the overall marketing strategies of brewers. To facilitate a comprehension of this, studies of three key players in the European beer market - Bass plc, Carlsberg A/S, Heineken NV - are utilised to exemplify the issues outlined. Practical applications of the product life cycle (PLC), and Boston Consulting Group Matrix (BCG) are then employed to illustrate the role of branding in product management within the competitive beer market. Reference to the European beer market is given at the beginning, as it facilitates a better understanding of the industry as a whole.
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    British food journal 100 (1998), S. 119-124 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Dunkin' Donuts is a global retailer of coffee and bakery products. The company is 99 per cent franchised and has used the franchising system as a route to market entry and expansion worldwide. The original historic roots of the company are in the USA and despite wide international expansion since the 1970s, the US market continues to serve as a testing ground for innovations prior to international roll-out. Based on observation and key informant interviews with core members of the management team during a visit to Richmond Project in 1994, the case explores the initial phase of the introduction of a central production facility as an innovative route to pre-eminence in one test market. Strategic and operational issues are discussed, highlighting the differences and efficiency gains of the central production facility cum satellite store approach compared to the traditional stand-alone on-site production approach. Implications for future developments are discussed.
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  • 64
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    British food journal 100 (1998), S. 141-146 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This article focuses on a case study of food and eating practices in a co-educational, multi-ethnic primary school. It illustrates discrepancies between the formal curriculum for food and the actual food consumed in school. Themes to be explored further are children's understandings about meals and snacks and the cultural significance attached to each.
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  • 65
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    British food journal 100 (1998), S. 171-183 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The power and usefulness of perceived risk theory in understanding shoppers' behaviour has been demonstrated many times over recent years in the UK by the numerous food scares. The article explores how retailers use perceived risk in their strategies and develops the links between store attributes and risk dimensions. This re-interpretation of previous store-image studies provides a new conceptual framework for understanding store image and deepens our knowledge of how risk and risk-reduction are operationalised in practice. The paper also reviews some evidence on factors which affect shoppers' risk perceptions, e.g. age, gender, group discussion, brand name and shopping channel and discusses how the risk concept can be used by food retailers as well as presenting some ideas for future research.
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  • 66
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    British food journal 100 (1998), S. 191-200 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Enormous variation exists internationally in the regulation of nutrition and health messages on the food label. For the consumer, the health claim on the label becomes a value-added point of product differentiation. Therefore, for the food industry, access to a health claim is a key marketing variable. It is important to understand the role of the public policy process in establishing health claims as developing nations mature and choose an approval process to advance their own food regulatory environment. Their choice of approach, and the type of participants contributing to the process, will influence the type of health claim outcome and the latitude of marketing permitted on the food label. This paper identifies and compares the regulatory approaches, in effect in early 1977, used to establish health claims in Japan, Australia and the European Union. There does not seem to be a clear international "lead" nation regulatory model for health claims, and this suggests global economies of scale are elusive for product development and marketing based on health claims.
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  • 67
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    British food journal 100 (1998), S. 228-235 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This paper describes the findings of a research project which investigated the suitability of the UK as a possible niche market for a speciality Portuguese smoked sausage (Chouriço de Portalegre). The paper begins with a discussion of niche marketing theory, and proposes three criteria which a potential niche market should adhere to. These criteria are then used as a means of assessing the potential of the UK as a niche market, with the help of secondary and primary research. Results show that the Chouriço de Portalegre has an appropriate mix of qualities for niche marketing in the UK, but that issues of intermediary and customer knowledge and communication of product benefits need to be overcome.The findings have important implications for retailers of speciality meat products in the UK.
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  • 68
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    British food journal 100 (1998), S. 273-277 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Scotland has one of the worst records in the western world for Coronary Heart Disease. The problem is to a large extent diet-related. The Scottish Office has, therefore, set out a diet plan for Scotland. Its recommendations to the public are in terms of individual foodstuffs. This study using national household survey data and demand modelling based on the Almost Ideal Demand System (AIDS) analyses the economic and demographic factors influencing Scotland's diet. The analysis shows that Scots are slowly moving from a diet rich in fat and cholesterol to a more healthy diet containing more white meat and fruit and vegetables. Part of the problem is income-related with the wealthiest segment of the population having the best diet. Age is also a factor with the older people consuming a diet more suitable to the period of heavy industrial labour in which they were brought up.
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  • 69
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    British food journal 100 (1998), S. 278-285 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This study focuses on the strategic nature of information on new products or innovations, and examines how it is managed (detailed versus non-detailed) and when it is released (pre-announcements versus announcements) in the food and food-related industries. We found that, compared with the pharmaceutical and the computer industries, firms in the food industry more often use pre-announcements instead of announcements to release information on innovative activities. The calculated ?2 of the hypothesis that there is no difference between the mode of releasing information and the industry group is 7.471 with 2 degrees of freedom and p of 0.0239, while the ?2 with 5 per cent level of significance and 2 df is 5.99. We also found that information released on innovative activities in the food industry is less detailed than that in the other two industries. Furthermore, the press coverage of innovations and new product information in the food industry is significantly smaller compared with the other two industries. Finally, we found that the financial markets (stock prices) do not react significantly to new information on innovations in the food industry.
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    British food journal 100 (1998), S. 343-350 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The article examines how purchase involvement theory can be used to assist marketing management in making more effective marketing mix decisions. The relationships between product purchase involvement and its antecedents are analysed, using examples from the Greek market for cheese. Mechanisms for measuring purchase involvement are identified. Product profiles are constructed for varieties of cheese and their usefulness as a segmentation tool is discussed. Implications of the results for marketing management and areas for further research are identified.
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    British food journal 100 (1998), S. 385-388 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Presents the need for the European agribusiness and food industries to redesign and reposition their activities in the food supply chain, both at a technical and organizational level, in order to achieve customer satisfaction and business efficiency. Focuses on the findings of ten supply chain projects in the Dutch horticultural sector and on the results of a benchmarking project in five different European countries. Describes the activities of the "Agri Chain Competence" programme in The Netherlands. Stresses that more attention should be paid to international food supply chains and that chain reversal asks for new methods, tools and expertise on chain analysis and chain management.
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    British food journal 100 (1998), S. 405-412 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The paper focuses on how Nestlé, the Swiss-based food multinational, is attempting to reinvigorate its long established British sub- house brand Crosse & Blackwell so that it can spearhead the company presence in key sectors of the UK food market. Brand bonding, the process which involves the transfusion of brand equities from corporate and product assets and associations, is applied. The role integrated marketing communications effort is playing in securing the desired position for Crosse & Blackwell, namely that of an innovative, convenient, tasty solution to food needs, is examined. The issue of the optimal presence for the house brand Nestlé is raised.
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  • 73
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    British food journal 100 (1998), S. 419-426 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: States that over half of the adult US population (55 percent) believes in the disease-preventative properties of natural foods such as fruits, vegetables and cereal grains. Consumer belief in the nutraceutical category has increased significantly in the past two years. The segmented nature of consumer beliefs, interest, and product preference in this new nutritional category suggest a more targeted approach to pubic health education policy, as well as marketing plans, when introducing consumers to the preventative health advantages of such foods.
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    Industrial lubrication & tribology 50 (1998), S. 4-5 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Outlines the development of National Vocational Qualifications (NVQs) in the petroleum industry. In recent years in this industry a number of clear trends have emerged. There was therefore a call for the development of a number of NVQs with relevance to particular areas of the industry. As a result NVQs were established covering occupations such as bulk liquid warehousing, refinery process operation, oil boiler installation and maintenance and forecourt management. The NVQ consists of five separate units and is designed to cover all aspects of lubricant manufacture.
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    Industrial lubrication & tribology 50 (1998), S. 6-15 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Focuses on oleochemicals, a natural alternative to mineral oils for use in liquid lubricants, metal working coolants, quenchants and hydraulic fluids. Natural oil based products generally have many advantages over mineral oils, including lower volatility, better inherent lubricity, higher viscosity index, higher bulk modulus, better fire resistance and better solvency. Details the manufacturing process.
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    Industrial lubrication & tribology 50 (1998), S. 61-71 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Lubricants for four-stroke motorcycles have traditionally been rebranded versions of those used for passenger car engine lubrication. Recent developments in passenger car engine oils with the intention of improving fuel utilisation efficiencies were not compatible with some of the specific requirements of four-stroke motorcycle powertrain lubrication. The effect of using such lubricants on the various components of the motorcycle powertrain, including the engine, clutch, gearbox, starter system drive and back torque limiter is described. The subsequent development of a new specification specifically for use in four-stroke motorcycles is described.
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    Industrial lubrication & tribology 50 (1998), S. 119-122 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary of an International Symposium entitled "The European Downstream Industry: A Vision for 2010", organised jointly by AFTP (French Association of Petroleum Technicians and Professionals), IP (Institute of Petroleum) and DGMK (German Society for Petroleum and Coal Science and Technology), recently held in Paris. Summarises a presentation of particular interest by J. Davidson. (Mobil Europe Lubricants nv) and R.B. LaPierre (Mobil Technology Company).
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    Industrial lubrication & tribology 50 (1998), S. 108-118 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Problems associated with inadequate fuel lubricity were identified in the aeronautical industry in the 1960s, following a succession of in-flight engine failures. The influence of fuel composition upon fuel lubricity was established, as was the effect of various lubricity additives. Problems associated with inadequate fuel lubricity were also subsequently identified in light-duty diesel engines when low-sulphur fuel was introduced. Again, the use of additives or modifications to the refining process overcame the problem at the time, but the continuing trend towards higher injection pressures may require further improvements in current fuel lubricity. The manufacture and use of biodiesel is described, together with the attendant benefits, including use as a lubricity additive in conventional diesel fuel, also disadvantages. The imminent introduction of direct-injection gasoline passenger car engines has now focused attention on the lubricity of gasoline, which is again likely to become a key issue. Two standardised test procedures for the measurement of fuel lubricities are described.
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    Industrial lubrication & tribology 50 (1998), S. 153-156 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Some of the mechanisms involved in the microbial colonisation and biodeterioration of metalworking fluids are described in an attempt to design a more realistic and meaningful laboratory assay procedure. The history of bioassay techniques is reviewed and the nature and composition of metalworking fluids is examined. Maximisation of the performance of biocides against micro-organisms and the influence of tramp oil contamination is assessed.
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  • 80
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    Industrial lubrication & tribology 50 (1998), S. 149-152 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Suggests that a very low volume of lubricant is enough to improve the cutting operation because the area that requires lubrication is small. An estimate of the volume of lubricant necessary has been carried out (7.2ml h-1) and some comments are presented about results of previous experiments using extremely low volumes of lubricant (108ml h-1). The low volume of lubricant is applied in the same way as the conventional system. In these previous experiments the effect of lubrication is measured by surface finish, cutting force and workpiece temperature. The improvement in surface finish when low volume of lubricant is applied is similar to the results obtained with tests carried out using the conventional cutting fluid system. This improvement is not due to lubrication on the rake face to avoid built-up edge, but action on the machined surface after it has been formed.
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    Industrial lubrication & tribology 50 (1998), S. 157-160 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Deals with the tribological behaviour of some ferrous, non-ferrous and polymeric materials, used for various applications in machine tools in dry conditions and when using solid lubricants, and the development of an empirical relationship of wear and friction dependent on influencing parameters. Some "Iso-Wear" curves have also been plotted for the purpose of obtaining values of the parameters and their treatment combination for a specific wear rate.
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  • 82
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    Industrial lubrication & tribology 50 (1998), S. 206-225 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Crankcase lubricants for automotive and commercial use are differentiated by their physico-chemical properties but more importantly by their performance in a series of engine test sequences. The sequences are devised by committees formed by representatives from the vehicle manufacturers, the oil companies and the additive suppliers. The article describes the sequences devised by the American Petroleum Institute and the European ACEA organisations, including some historical background as well as the current specifications. Methods of compliance monitoring and enforcement are also covered.
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    Industrial lubrication & tribology 50 (1998), S. 278-281 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The various types and application of bonded coatings are described, and their ability to reduce friction and wear. The composition and nature of the active ingredients are also covered, together with brief details of manufacturing processes. Examples are given of typical current application areas, although the potential of these types of coatings is such that the number of new applications is escalating rapidly.
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    Industrial lubrication & tribology 50 (1998), S. 282-289 
    ISSN: 0036-8792
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Despite their outstanding combination of properties, titanium and its alloys are very susceptible to severe adhesive wear in rubbing with almost all the engineering surfaces and can exhibit poor corrosion resistance in some aggressive environments. Surface engineering research centred at the University of Birmingham has been focused on creating designed surfaces for titanium components. Great progress has been made recently through the development of such novel surface engineering techniques as thermal oxidation, palladium-treated thermal oxidation, oxygen diffusion and duplex systems. Such advances thus provide scope for designing titanium components for a diversified range of engineering applications, usually as direct replacements for steel components. By way of example, some of our successful steps towards titanium designed surfaces are demonstrated. To date, the potential of these novel techniques has been realised first in auto-sport and off-shore industries.
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    Soldering & surface mount technology 10 (1998), S. 6-9 
    ISSN: 0954-0911
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper considers how the throughput of the component assembly process can be maximised by the use of software tools. Optimum results are achieved if the tools provide an automatic, detailed analysis of the assembly process while providing the engineer with the opportunity to use his experience to further enhance any automatically generated results. The tools must consider the assembly process as a whole, rather than each stage in the process independently, in order to gain maximum benefit. Finally, the tools must be flexible enough to be able to perform an accurate analysis for all assembly environments.
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    Soldering & surface mount technology 10 (1998), S. 10-12 
    ISSN: 0954-0911
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The microstructure of the Sn-3.5wt%Ag/Cu and Sn-9.0wt%Zn/Cu interfaces after soldering at 250°C was evaluated. The cross-sections were investigated using a scanning electron microscope and energy dispersive X-ray to determine the interface layer structure and composition. Even though the cooling rate from soldering temperature to room temperature is rapid, this study indicates that the intermetallic compound is formed at the interface between the solder and the copper substrate for both the Sn-3.5wt%Ag and the Sn-9.0wt%Zn lead-free solders.
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    Soldering & surface mount technology 10 (1998), S. 13-18 
    ISSN: 0954-0911
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper describes a technique for the monitoring and control of the reflow soldering process. The technique combines state-of-the-art infra-red (IR) sensor technology, coupled with application-specific process monitoring and control software, providing a unique capability both to monitor product temperatures during processing and to modify the process settings. The development of techniques to allow variation of the heat transfer from the oven to the in-process printed circuit assemblies (PCAs) provides the means to adjust the soldering oven's process settings for each individual PCA. This automatic profiling ensures consistent thermal histories and optimises oven energy consumption. Archiving of the reflow profiles along with temperatures recorded for each PCA provides full traceability to the reflow process settings for each individual PCA. The incorporation of IR sensing technology also provides a means to monitor the performance of the process.
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    Soldering & surface mount technology 10 (1998), S. 19-25 
    ISSN: 0954-0911
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In recent years, efforts to develop alternatives to lead-based solders have increased dramatically. These efforts began as a response to potential legislation and regulations restricting lead usage in the electronics industry. Lead is extremely toxic when inhaled or ingested. As researchers began to focus on Pb-free solders, they recognized their value in high temperature applications (e.g. automotive manufacturing) where Sn/Pb solders do not meet the requirements. There are many factors to consider when developing lead-free alloys: manufacturability, availability, reliability, cost and environmental safety. Of these, the most challenging and time consuming is the reliability of alternative solders. The lead-free alloys available cannot be used as a drop-in replacement for the SnPb or SnPbAg. The introduction of lead-free solder alloys may mean having to use alternative component and PCB metallizations, PCB materials, solder fluxes, etc.
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    Soldering & surface mount technology 10 (1998), S. 26-31 
    ISSN: 0954-0911
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A computational model was established in this study to simulate cavity-down plastic ball grid array (PBGA) assemblies. Stress analysis was performed to investigate the solder joint reliability of a PBGA-PCB (printed circuit board) assembly. The packages under investigation had two different body sizes and two kinds of ball population. The diagonal cross-section of the assembly was modeled by plane-strain elements and was subjected to a uniform thermal loading. The solder joints were stressed due to the mismatch of the assembly's coefficient of thermal expansion (CTE). The accumulated effective plastic strain was evaluated as an index for the reliability of solder joints. Effects on solder joint reliability such as package size and ball population were identified. Furthermore, it was found that, unlike conventional PBGA assemblies, the outermost solder ball has the highest plastic strain for all cases in the present study. This peculiar phenomenon was further discussed with the consideration of package deformation.
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    International journal of clothing science & technology 10 (1998), S. 305-312 
    ISSN: 0955-6222
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The buckling behaviour of engineering materials has been researched extensively since the 1890s and more recently, thin shell theory has generalised the analysis to include complicated boundary conditions. However, the approximations and assumptions which form the basis of engineering models make them inappropriate for textile materials. Very small stresses on textile materials cause extremely large strains so that the deformations are highly nonlinear. In this paper, we develop a nonlinear mathematical method. In the final section, the nonlinear differential equations used are generalised into a nonlinear evolution equation which is completely integrable and thus solved analytically obtaining dynamical solution for three-dimensional fabric drape. These analytical solutions are applicable under all conditions and are not subject to computational difficulties associated with finding numerical solutions for highly nonlinear problems. The use of this analytical approach to fabric mechanics and dynamics provides us with a very powerful tool to formulate and solve many long-standing problems in fabric and clothing technology.
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    International journal of clothing science & technology 10 (1998), S. 263-272 
    ISSN: 0955-6222
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Engineered manufacturing of high quality garments has long been a target of textile technology. There are three main factors for manufacturing high quality garments. They are: the selection of good fabrics for the garments; the process control of garment manufacturing; and the performance and correct adjustment of manufacturing machines such as sewing machines. In recent years, objective evaluation technology of fabric quality has been developed, and many researchers are now moving toward the engineered design of fabric quality based on this objective evaluation technology. The present authors are also conducting research on these three factors on the basis of the development of objective evaluation technology. This paper consists of two parts. The first part is a brief introduction about the investigation of the first and the second factors, which have been investigated by the authors. The second part presents our recent research on seam pucker problems. This problem is a machine-materials interaction problem, and the mechanical properties of sewing thread and fabric are closely connected in this problem.
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    International journal of numerical methods for heat & fluid flow 8 (1998), S. 27-42 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The integral transform method is employed for the hybrid numerical-analytical solution of two-dimensional, steady-state heat conduction within extended surfaces of variable longitudinal profile and temperature dependent thermal conductivity. Numerical results are then obtainable with automatic accuracy, allowing for the establishment of benchmark results and for the validation of approximate solutions. Convergence rates are illustrated for longitudinal fins with trapezoidal and parabolic profiles, and for different values of the governing parameters, Biot number and aspect ratio. In addition, the classical one-dimensional approximate solutions are critically examined for these typical non-straight profiles, and the applicability limits are investigated.
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    International journal of numerical methods for heat & fluid flow 8 (1998), S. 83-96 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Using a non-Fourier heat conduction (NFHC) hypothesis, the governing equations of thermal wave propagation are established. The resulting differential equations are transformed to integral forms using the Galerkin weighted residual method and then are discretized by a finite element technique. The proposed finite element formulation is verified by comparing the results of analytical and numerical solutions to a number of selected 1-D problems. A couple of 2-D sample problems are solved and the responses of the system to various input signals are studied. The proposed mixed approach shows superiority to the conventional finite element solution of hyperbolic heat conduction equation, because of the simultaneous determination of heat fluxes and temperature at each nodal point. The mixed approach is also shown to be capable of capturing the sudden temperature jump due to heat pulses.
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  • 94
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 118-141 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The present investigation is an extension of the authors' previous work on ducts with different cross sections. It concerns application of turbulence models for forced convective heat transfer in three-dimensional corrugated or wavy ducts. Different wavy ducts with fully developed flow and temperature fields are considered. The numerical approach is based on the finite volume technique with a non-staggered grid arrangement. For handling the pressure-velocity coupling the SIMPLEC-algorithm is used. Cyclic boundary conditions are imposed in the main flow direction to achieve fully developed conditions. The non-linear k-e model of Speziale with wall functions is used to calculate the turbulent stresses. The simple eddy diffusivity concept is applied to calculate the heat fluxes, but the GGDH and the WET methods are also used in some cases. The influence of the geometry parameters and comparison between different ducts are presented in terms of the friction factor and average Nusselt number. In particular the secondary velocity field and the cross sectional temperature distributions are investigated.
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  • 95
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 217-223 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Photothermal technique provides a convenient means for detecting the change in pulse-induced thermal radiation emission from a single spherical particle. The change in the emitted blackbody radiation is determined by the change in the surface temperature of the particle which in turn can be derived from heat conduction equation. Numerical solution to the heat conduction equation for a single spherical particle model on thermally bad conducting samples is derived and compared with a relatively simple analytical solution. Some results for particles of interest are discussed.
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  • 96
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 245-255 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The flow inside an axisymmetric diffuser with a curved surface centre body is numerically simulated using different turbulence models, namely a high-Reynolds number k-e in conjunction with wall function turbulence model, a high-Reynolds number k-e with one-equation turbulence model, a low-Reynolds number k-e turbulence model, a RNG turbulence model and an anisotropic turbulence model. For the separation and reattachment positions, the comparisons made between the various numerical predictions and experimental measurements show that the high-Reynolds number k-e with one-equation turbulence model is superior to other models in the present study.
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  • 97
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 304-320 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The discretisation scheme presented for an unstructured triangular grid, is able to reflect the physical properties of stationary, nonlinear heat conduction even in the numerical case and leads to a stabilisation of iterative solution techniques for nonlinearities.
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  • 98
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 321-349 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A computational methodology, based on the coupling of the finite element and boundary element methods, is developed for the solution of magnetothermal problems. The finite element formulation and boundary element formulation, along with their coupling, are discussed. The coupling procedure is also presented, which entails the application of the LU decomposition to eliminate the need for the direct inversion of matrices resulting from FE-BE formulation, thereby saving computation time and storage space. Corners for both FE-BE interface and BE regions, where discontinuous fluxes exist, are treated using the double flux concept. Numerical results are presented for three different systems and compared with analytical solutions when available. Numerical experiments suggest that for magnetothermal problems involving small skin depths, a careful mesh distribution is critical for accurate prediction of the field variables of interest. It is found that the accuracy of the temperature distribution is strongly dependent upon that of the magnetic vector potential. A small error in the magnetic vector potential can produce significant errors in the subsequent temperature calculations. Thus, particular attention must be paid to the design of a suitable mesh for the accurate prediction of vector potentials. From all the cases examined, 4-node linear elements with adequate progressive coarsening of meshes from the surface gave the results with best accuracy.
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  • 99
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 424-444 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The multi-domain generalized differential quadrature method is applied in this paper to simulate the flows in Czochralski crystal growth. The effect of interface treatment on the numerical solution is studied through four types of interface approximations. The performance of those four interface approximations is validated by a benchmark problem suggested by Wheeler. It is demonstrated in this study that the multi-domain GDQ approach is an efficient method which can obtain accurate numerical solutions by using very few grid points, and the overlapped interface approximation provides the most accurate numerical results.
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  • 100
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 488-503 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The paper utilizes a boundary-layer model in bipolar coordinates to study the developing laminar free convection in vertical open-ended eccentric annuli with one of the boundaries uniformly heated while the other boundary is cooled and kept isothermal at the ambient temperature. This model has been solved numerically using finite-difference techniques. Results not available in the literature are presented for a fluid of Prandtl number 0.7 in an annulus of radius ratio 0.5 for three values of the dimensionless eccentricity, namely, 0.1, 0.5 and 0.7. These results include the developing velocity profiles and the pressure along the annulus, the channel heights required to naturally induce different flow rates and the variation of the total heat absorbed by the fluid with the channel height.
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