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  • 1
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    In:  CASI
    Publication Date: 2016-03-11
    Type: NACA-TN-62
    Format: application/pdf
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  • 2
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract As a part of an ongoing investigation into urban acidic deposition in Greater Manchester, a wet-only collector was collocated with a bulk collector in the city centre of Manchester, one of 18 sites of an urban precipitation monitoring network. A comparison of data from these collocated bulk and wet-only collectors allowed estimates of the contribution of dry deposition to the bulk collector to be made. Dry deposition was found to contribute between 15 and 17% to elevated deposition and concentrations of non marine sulphate, nitrate and ammonium in the bulk collector. By a statistical analysis between ion concentrations with gas concentrations and an evaluation of the available literature, the form of the dry deposited material was inferred. The contribution of dry deposited Ca2+ to concentration and deposition in the bulk collector was found to be 46%. Calcium species are suggested as being those which reduce acidity most. Statistical analyses revealed significant differences between concentrations of ions found in the bulk and wet-only collectors. An evaluation of the data from the collocated collectors has identified possible sampling artifacts introduced by the use of bulk collectors in urban areas.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The environmentalist 11 (1991), S. 71-74 
    ISSN: 1573-2991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-2991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1573-2991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Summary This paper reviews the status of the flue gas desulphurisation (FGD) programme in the United Kingdom up to the end of 1989, with particular regard to siting and systems choices. Environmental issues associated with the on-going retrofit at Drax power station are analysed and extrapolated to a retrofit at Fiddler's Ferry power station. The emission reductions required of the UK by the European Community Large Combustion Plant Directive are assessed. The impact of privatisation of the electricity supply industry on the flue gas desulphurisation programme is discussed with particular reference to the new electricity generating companies for England and Wales.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The environmentalist 15 (1995), S. 147-154 
    ISSN: 1573-2991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-2959
    Keywords: atmospheric change ; sustainability index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Assessing the major atmospheric issues – acidic deposition, climatechange, ozone depletion, smog, hazardous airpollutants and suspended particulate matter – together rather than individually provides many advantages. But to be successful, this integration requires a common method for relating theseissues to one another. This is a scientific question.In order to successfully resolve the atmospheric issues (a policy question) requires communication of the relevant science to non-scientists in plain language. Non-scientists need to be part of the development of the structure of the communications vehicle. The objective for multi-issueassessment, and thus for the development of an index to trackthe state of the environment in an integrated way, is of courserelated to the desire to achieve environmentally sustainable development.Sustainability can be represented by a 3-legged stool and is an aptsymbol of the struggle of Canadians to balance their ecological,economic and social needs. Although the environment is the basisof all life, humankind has created society and has defined how thatsociety will function (the economy). The three legs of the stool(ecosystem, economy, society) represent the three parts of the’sustainability‘ balance. The seat of the stool represents the’governance process‘ and the three legs are deeply embedded in thisgovernance process because it is the ’governance‘ which ensures thestability of the system over time. The challenge then is to measure the stability of the ’stool‘ in a waywhich all can understand. This measure of ’sustainability‘ must respondto individual and collective actions which improve or degrade the environment. This paper presents such a framework for a ’sustainability index‘ andoutlines the next steps that need to be taken.The framework starts from the premise that ecosystem, economy andsociety are equal parts of ’sustainability‘. Ecosystem indices arerepresentative measures of the state of the environment while economicindices are representative measures of the state of the economy. Socialindices in some way have to measure the state of society. The trick,for a successful sustainability index, will be to ensure that the importantaspects of the ecosystem, the economy and society, are included. The overall index must berelatively stable but must be responsive to changes.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1573-2991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1573-2991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Summary Concern about the environmental damage caused by acid deposition has lead to national programmes to reduce acid precursor emissions. In the UK, a retrofit programme of flue gas desulphurisation (FGD) to three 2,000 MW coal-fired power stations has been announced, with up to four new stations equipped with FGD likely to follow by the year 2000. Whilst the positive effects of acid deposition abatement are recognised there has been considerable concern over the negative aspects of the programme arising, particularly, from the raw material requirements of an FGD plant and the need to dispose of waste products. A careful choice of the most appropriate technology can significantly reduce the negative impacts but such a choice can only be made after an environmental assessment of the national FGD programme.
    Type of Medium: Electronic Resource
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  • 10
    Publication Date: 2019-06-28
    Description: As an airplane rises to high altitudes the decrease in the density and the temperature of the air have important effects on the performance of the radiator. This report gives the results of a study of the effect of reduced pressure and temperature upon the capacity of airplane radiators. A method is presented by which the performance of a radiator at an altitude may be estimated for a particular speed of the airplane at a particular altitude.
    Type: NACA-TR-62
    Format: application/pdf
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