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  • 1
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Bingley : Emerald
    Environmental management and health 10 (1999), S. 96-104 
    ISSN: 0956-6163
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Medicine , Economics
    Notes: Electrostatic precipitators (ESP) and fabric filters (FF) are the main air pollution control equipment utilized to clean dust laden fumes from utility boilers. The choice among these systems depends on specific site conditions such as dust characteristics, required efficiency, gas flowrate and temperature. ESP are generally characterized by higher capital investments and lower operating charges, while the opposite may be said for FF baghouses. As a consequence, ESP present higher total costs when high specific collection areas are required, as happens in the case of low-sulfur high-resistivity dust. However, significant reductions in both capital investment and operating charges may be obtained with pulsed energization of precipitators working in severe back corona conditions. This possibility greatly enlarges the field of applications in which ESP are a lower cost option compared to fabric filters. In the paper an economic comparison of pulse energized ESP, with conventional ESP, reverse-air, shaker, and pulse-jet baghouses is performed. A mapping of the operating conditions in which the adoption of each examined control technology is economically convenient is also defined.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Bingley : Emerald
    Environmental management and health 13 (2002), S. 71-79 
    ISSN: 0956-6163
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Medicine , Economics
    Notes: The problem of environmental management in a protected area has been examined in the paper. A methodological approach based on geographical information system (GIS) technology has been proposed in order to aid in all planning phases. The software tool has been illustrated and a case study has been presented with reference to a national park. Results show capabilities of the developed decision-support system in identifying and comparing technical-economical solutions compatible with protected area constraints.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    Integrated manufacturing systems 14 (2003), S. 95-102 
    ISSN: 0957-6061
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Economics
    Notes: Describes the reengineering of a production line for household heating tubular radiators, assuming as a reference scenario the facility of one of the leading Italian manufacturers. After a preliminary characterization of products and manufacturing process, a thorough analysis of the production system has been carried out in order to highlight current problems and improvement strategies in the light of lean manufacturing concepts. Subsequently, suggests some corrective actions and also assesses their expected effectiveness in economic terms. In particular, improvement possibilities have been found in the areas of internal logistics through streamlining of materials flow and layout modifications, as well as process quality increase. Reengineering activities are especially aimed towards layout optimization mainly by resorting to a U-shaped cell-based architecture. Further, the reduction of rework percentage during the assembly phase has been pursued by properly modifying the operations sequence and through integration of a new automated testing station in the production line.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Bingley : Emerald
    Industrial management & data systems 105 (2005), S. 193-207 
    ISSN: 0263-5577
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Computer Science , Economics
    Notes: Purpose - This article aims to suggest to managers involved in re-engineering projects a method to assess the feasibility of manufacturing re-insourcing. Design/methodology/approach - At first, an analysis of the textile sector is carried out. Subsequently, a methodology is described, able to assess the feasibility of manufacturing re-insourcing. As a case study, a high production shop is then proposed and sized for the quick response requirements of a company producing young apparel lines on behalf of third parties. Finally, an economic evaluation is carried out in order to assess the profitability of the re-insourcing strategy. Findings - A methodology which can aid managers to assess the feasibility of manufacturing re-insourcing in re-engineering programs is proposed. Originality/value - The proposed methodology is original.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Bingley : Emerald
    Supply chain management 10 (2005), S. 84-95 
    ISSN: 1359-8546
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: Purpose - The purpose of the present paper is to provide a comprehensive framework for analyzing relationships among economic actors interconnected through internet and constituting e-supply networks (e-SNs). Design/methodology/approach - At first the main factors characterizing e-SN pattern are identified (organizational structures, managerial criteria and critical activities), then two separate procedures are adopted for developing an integrated reference framework. The first based on the analysis of correlations among variables influencing the factors under investigation; the second based on the analysis of different types of physical and immaterial flows among actors involved in the e-SN. On the basis of such evidence an integrated global framework is proposed, which is then used to classify and describe some relevant literature-based case studies. Findings - On the basis of two newly introduced variables, namely the internal integration degree and the decision-making concentration degree, the framework identifies four sets of organizational structures, managerial criteria and critical activities, each one coherent with specific environmental contexts. Research limitations/implications - The framework is restricted to describing and classifying different typologies of e-SN. Practical implications - The framework may be useful for assessing if the typology of organizational structure, managerial criteria and critical activities adopted for the management of a specific e-SN, is coherent with e-SN business environment. It may also provide useful guidelines for managers and practitioners involved in e-SN design. Originality/value - The paper provides an original integrated framework to classify e-SNs.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 395-396 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In this communication the results of a preliminary investigation on the molecular properties of the conjugated proteins isolated from exudates will be reported. These substances were isolated by dialysis of the exudate against acetate buffer at pSi 4-5, ionic strength 0-1. A few hours afterwards a ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 173 (1954), S. 358-359 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The present communication describes preliminary results of the fractionation of hyaluronidase preparations by filter-paper electrophoresis, in view of the special advantages of filter-paper electrophoresis for studying the enzymic properties of some proteins. The technique was essentially that of ...
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 1133-1134 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The acid mucopolysaccharide was isolated from umbilical cord and purified to provide preparations homogeneous in the electrophoresis and ultracentri-fuge. Irradiations were carried out with soft X-rays in a 'Dermopan' apparatus (beryllium window; 45 kV. ; 25 m.amp., at distance of 5 mm. from the ...
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