نتایج جستجو برای: gas stations
تعداد نتایج: 277339 فیلتر نتایج به سال:
..................................................................................................................................................... xi Executive Summary ................................................................................................................................... 1 1.0 Introduction .............................................................................
concentration of heavy metals in aquatic ecosystems is considered as an important environmantal issue. in this study, the namrood river located in firoozkooh (tehran province, iran) was assessed for the existence of heavy metals. the namrood river is situated by the main road being by pollutants from tourism and recreational centers, gas stations, sewage of villages, agricultural wastewater and...
moisture and air pollutions intensify metallic and nonmetallic surface corrosions. corroded surfaces exposed to rain washing cause pollution transportation in water and soil environment, especially in industrial areas. investigation of storm runoff quality in pars special economic energy zone (pseez) has shown heavy metals in storm basins of gas refineries and petrochemical industries.in this p...
Bubbles generated by breaking waves can drive significant gas exchange between the ocean and atmosphere, but the role of bubble-mediated gas transfer in estuaries is unknown. Here, backscatter data from 41 acoustic Doppler current profiler stations was analyzed to assess subsurface bubble distributions in nine estuaries along the U.S. East and Gulf Coast. Wind speed, wind direction, and current...
Advanced model-based control architecture overcomes the limitations state-of-the-art engine control and provides the potential of virtual sensors, for example for thrust and stall margin. “Tracking filters” are used to adapt the control parameters to actual conditions and to individual engines. For health monitoring standalone monitoring units will be used for on-board analysis to determine the...
Natural gas is transmitted at high pressure levels. For industrial and domestic consumptions, this pressure should be reduced. Usually, mechanical valves accomplish this process. Turbo-expanders can replace these equipments and reduce gas pressure at city gate gas pressure reduction stations as well. Besides, they can recover the huge amount of high pressure gas energy and drive electrical gene...
An important class of location-based services answers the question, "What instances of this service are closest to me?" Examples include finding restaurants, gas stations, stores, automated teller machines, wireless access points (hot spots), or parking spaces. Currently, the Location-to-Service Translation (LoST) protocol only supports mapping locations to a single service based on service reg...
carbon monoxide (co) poisoning is one of the most common causes of death in iran. the present study investigated the indoor and outdoor co concentrations at hospitals under the supervision of mazandaran university of medical sciences in sari, iran.indoor and outdoor measured co were conducted over a period of one month during the 2012 winter season in 4 hospital kitchens using a direct measurem...
mankind efforts for achieving a better life while brings welfare for him, unfortunately brings environmental and harmful effects on health. these harm specially the ones due to increase in automobiles and fossil fuels, endanger the possibility of the continuation of life for present and future tenerations. lead is mentioned as one of the outputs of these fuels. available studies indicate that t...
Emotions and Sentiment Analysis has had an important role in increasing business benefits on commerce sector. Emotions Analysis as well as Sentiment Analysis is a common machine learning technique used to analyze opinions of people about certain company aspects such as products image, product consumption, marketing campaigns, client's preferences and social or political movements. The relevance...
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