نتایج جستجو برای: gas oil and natural gas it
تعداد نتایج: 17043697 فیلتر نتایج به سال:
According to the Global Fuel Crisis, it seems necessary to use alternative fuel instead of gasoline. Since the natural gas is cheaper, have higher frequency than gasoline and less pollution, it is a suitable fuel. Many efforts have been done in order to replace gasoline with natural gas. One of the methods is to inject natural gas and gasoline fuel simultaneously and to use the benefits of both...
Background & aim :The Compressed Natural Gas(CNG)emphasize as clean fuel in reducing contaminating, limitation in providing air, oil resources and subsequently less expenses, preparation and utilization of Natural Gas regarding to gasoline and oil. Through this recent years, natural gas cause increasing the station development to it in the country. The study of statistics interruption fuel...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
the natural gas consumption in iran has been continuously increasing due to several reasons including low prices of natural gas, development of gas supply networks, people’s salary increase, incorrect consumption culture and the increase of national economy growth. although, the global natural gas consumption has increased by 38% since 2001, the national consumption in iran has increased by 11...
gas chromatography (gc) and gas chromatography mass spectrometry (gc-ms) were employed to determine the chemical composition of essential oil obtained from dry fruits of carum copticum. thymol (36.7%), -terpinene (36.5%) and -cymene (21.1%) were found to be the major constituents of the oil. the anti-bacterial activities of the oil were mainly investigated against food poisoning bacteria (sal...
security of energy is the major concern of the world, especially the large industrial countries. countries of central asia and the caucasus are the most important countries in the field of energy resources and energy transfer. of the eight countries of central asia and the caucasus, azerbaijan, kazakhstan, turkmenistan and uzbekistan has in total 3.2 percent crude oil reserves and about 14 perc...
Extraction and processing of oil products consume 10% of the total energy produced by fossil resource. to prevent operational problems in downstream units Oil extracted from oil fields will be sent to the desalting plant for desalination and dehydration. One of the most important steps that have a vital role in this unit is pre-heating by heaters which use natural gas produced with crude oil at...
according to the global fuel crisis, it seems necessary to use alternative fuel instead of gasoline. since the natural gas is cheaper, have higher frequency than gasoline and less pollution, it is a suitable fuel. many efforts have been done in order to replace gasoline with natural gas. one of the methods is to inject natural gas and gasoline fuel simultaneously and to use the benefits of both...
چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...
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