نتایج جستجو برای: petrol
تعداد نتایج: 1496 فیلتر نتایج به سال:
This study empirically examines how fluctuations in oil prices affect the stock returns of clean energy and gas companies between 2001:01 2022:06. Our results show that a negative supply shock affects positively. In contrast, an oil-specific demand negatively them. The findings also reveal increase owing to tends not improve companies. Consequently, indicate are alternatives.
چکیده ندارد.
Günümüz koşulları altında yatırımcıların karar verebilmesi için risk ve getiri arasındaki ilişkiyi ön planda tutması gerekmektedir. Volatilite riskin bir boyutunu ölçerken, diğer taraftan ise değişken veya değişkenlerin ortalamaya göre nasıl değiştiğini gösteren durumdur. Finansal piyasalar çok önemli durumdur volatiliteye etki eden birçok faktör bulunmaktadır. Bu faktörler yönetimi yatırım kar...
OBJECTIVES About 7000 tonnes of unleaded petrol were discharged into the English Channel after a tanker collision off Ostend on Saturday 18 January 1997. The petrol evaporated and the vapour plume was carried across the central part of England to Wales, resulting in reports of unidentified odours, and irritation of the eyes, skin, and upper respiratory tract. This work uses this incident to sho...
Comparative Study for Biosurfactant Production by Using Bacillus subtilis and Pseudomonas aeruginosa
Biosurfactants are amphiphilic compounds produced by various bacteria and fungi which reduce surface and interfacial tension. Oil contaminated soil were collected from four different automobile shop in Mayiladuthurai, Tamilnadu, India. Bacillus subtilis and Pseudomonas aeruginosa were isolated and identified from these four samples and these were screened for biosurfactants production using veg...
Road transportation has most adversely affected the air quality in Delhi. The existing fleet of 3.5 million motor vehicles in Delhi contributes nearly 70% of the total air pollution load. To improve the air quality status in Delhi various measures viz. improvement in fuel quality and engine technology, use of exhaust treatment devices, use of cleaner alternative fuels (CNG) etc. have been adopt...
this article studies the effects of dividing the distribution of petrol on changing the methods of city transportation in mashhad, six months after the plan. the sampling method used in this research is the classed sampling method and there were 670 participants, all from the city of mashhad. the results of the study show that the rate of satisfaction from the plan, is very low; just 20%. the y...
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