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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 11 to 12 of 12 (0.026 seconds)Spelling suggestions: "subject:"užterštumo""
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Klaipėdos miesto šiaurinės dalies oro taršos tyrimai ir modeliavimas / Investigation and modeling of the ambient pollution in Klaipeda city northern partPetrauskas, Linas 21 June 2006 (has links)
Particulate matters – affected air pollution and air pollution sources in the Northern part
of Klaipeda are being analysed in the final work. The first part of the work focuses on the air
pollution in Lithuania and worldwide, leteron methods and devices for measuring the
concentration of the particulate matters in the air are being analysed. Earlier research works on
this subject are being analysed together with various information sources.
With the help of modern efficient air polution measurement devices, particulate matters
– affected air pollution and air pollution causes in the Northern part of Klaipeda were
examined. After collecting data on transport concentration in certain streets of the seaport, it
was possible to do the modelling of segments of these streets. the resuls of the modelling are
being compared with the results of the pre-existing research.
The conclusions and recommendations of the final work are based on the analyses of
the particulate matters – affected air pollution and itas spread in Klaipeda.
the work consists of 8 parts; the Introduction, the Literature overview, the analyses of
the air pollution estimation methods and devices, Particulate matters – affected air pollution
analyses in Klaipeda city, the modelling of the particulate matters spread in the seaport,
Conclusions, Suggestions and References.
The volume of work is 119 p., excluding appendices, 56 illustrations, 17 Figures, 58
reference sources.
Articles for publication and publications... [to full text]
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| 12 |
Darbo aplinkos norminio užterštumo įtakos energijos sąnaudoms vėdinimui analizė / The analysis of industrial ambient occupational exposure limits’ influence on ventilation energy consumptionJurgelevič, Inesa 28 June 2004 (has links)
Occupational exposure limits are known to have different distribution values around the world. In recent years occupational exposure limits were reviewed in Lithuania and other Eastern European countries. The changes in occupational exposure limits should influence the hood flow rate. However even today the projectors continue using the same air flow rate equations that were developed years ago. The engineering methods are no longer compatible with sanitary standards. The major dangers resulting from this approach are the occupational exposure limits exceed allowed quotas in workplace or the energy consumption is harmfully inefficient. It is crucial to compare the treatment of occupational exposure limits among various countries and the different existing methods of calculating exhaust air flow rate. Additionally, it is important to consider the factors that may compromise the reliability of this study. Lithuania's occupational exposure limits are in general lower than in other countries. The ratio of occupational exposure limits is about 1:100 in different countries.Exhaust air flow should be inversely proportional to occupational exposure limits. It was found that volumetric exhaust flow rate have a circular dependence on occupational exposure limits by making comparison among different countries. The purpose of this study is to draw attention to the issue of small countries to use the volumetric exhaust air flow rate equations of big countries (USA, Russia, Germany etc.)... [to full text]
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