نتایج جستجو برای: petrol
تعداد نتایج: 1496 فیلتر نتایج به سال:
The bioemulsifier V2-7 is an exopolysaccharide (EPS) synthesized by strain F2-7 of Halomonas eurihalina and it has the property of emulsifying a wide range of hydrocarbons i.e. n-tetradecane, n-hexadecane, n-octane, xylene mineral light and heavy oils, petrol and crude oil. Characteristics of exopolysaccharide V2-7 produced in media supplemented with various hydrocarbons (n-tetradecane, n-hexad...
Long term exposure to solvents and air pollutants can lead to deleterious effects on respiratory, haematological and thyroid functioning. The aim of this study was to investigate whether chronic exposure to solvents like benzene and pollutants like carbon monoxide in petrol filling workers had adverse effect on blood parameters, thyroid and respiratory functions. The study group consisted of 42...
Two cores collected in 2001 and 2004 from Flanders Moss ombrotrophic peat bog in central Scotland were dated (14C, 210Pb) and analysed (ICP-OES, ICP-MS) to derive and compare the historical atmospheric deposition records of Sb and Pb over the past 2500 years. After correction, via Sc, for contributions from soil dust, depositional fluxes of Sb and Pb peaked from ca. 1920-1960 A.D., with >95% of...
Many of the issues we face as a society are made more problematic by the rapidly changing context in which important decisions are made. For example buying a petrol powered car is most advantageous when there are many petrol pumps providing cheap petrol whereas buying an electric car is most advantageous when there are many electrical recharge points or high capacity batteries available. Such c...
An electric vehicle is a type of that uses motor and battery pack instead an internal combustion engine. Power given from battery-pack rather than petrol. This saves money has smaller impact on the environment as well. There are few barriers for rapid adoption vehicles, like lack charging infrastructure, limitations technology high purchase costs. In this project, I am going to converting petro...
Bu çalışmanın amacı, dünya petrol, kömür ve doğal gaz fiyatlarındaki değişikliklerin düzeltilmemiş piyasa faiz oranına göre düzeltilmiş BIST elektrik endeksinin getirisine etkisinin 17 Mayıs 2010 – 29 2020 dönemi için araştırılmasıdır. Değişkenler arasındaki nedensellik ilişkisi Granger Nedensellik testi ile, oynaklık yayılımı ise GARCH (1,1) ADC BEKK yöntemleri ile incelenmiştir. Analiz bulgul...
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