نتایج جستجو برای: oil spreading
تعداد نتایج: 171195 فیلتر نتایج به سال:
Due to an increase in demand of petroleum products which are transported by vessels or exported by pipelines, oil spill management becomes a controversial issue in coastal environment safety as well as making serious financial problems. After spilling oil in the water body, oil spreads as a thin layer on the water surface. Currents, waves and wind are the main causes of oil slick transport. The...
سورفکتانت های زیستی مولکول های کاهش دهنده کشش سطحی هستند که توسط انواع مختلفی از میکروارگانیسم ها تولید می شوند و بعد از بیومولکول ها(biomolecule) مهمترین گروه زیستی را به خود اختصاص می دهند. با توجه به اهمیت زیست محیطی و کاربرد بهینه سورفکتانت های زیستی، نوع طبیعی آن ها نسبت به نوع شیمیایی ارجحیت دارد. هدف مطالعه حاضر جستجوی باکتری های تولید کننده بیوسورفکتانت(biosurfactant) بر پوست نشخوارکنند...
Due to an increase in demand of petroleum products which are transported by vessels or exported by pipelines, oil spill management becomes a controversial issue in coastal environment safety as well as making serious financial problems. After spilling oil in the water body, oil spreads as a thin layer on the water surface. Currents, waves and wind are the main causes of oil slick transport. The...
Nowadays oil spill are one of the most important problem in the humans life. Usually advection and dispersion occur because of chemicals, physicals and biological processes that related by properties of oil and other things. These processes are evaporation, dispersion and so on. When oil spills on the sea, it is extended and made oil slick. Increasing these kinds of events cause developing many...
Quasi-static rule-based network models used to calculate capillary dominated multiphase transport properties in porous media employ equilibrium fluid saturation distributions which assume that pores are fully filled with a single bulk fluid with other fluids present only as wetting and/or spreading films. We show that for drainage dominated three-phase displacements in which a non-wetting fluid...
Silicone oils have wide range of applications in personal care products due to their unique properties of high lubricity, non-toxicity, excessive spreading and film formation. They are usually employed in the form of emulsions due to their inert nature. Until now, different conventional emulsification techniques have been developed and applied to prepare silicone oil emulsions. The size and uni...
For several years, the National Oceanic and Atmospheric Administration Hazardous Materials Response Division (NOAA/HAZMAT) has been using and distributing the computer software package called ADIOS (Automated Data Inquiry for Oil Spills) to aid responders in oil spill cleanup. ADIOS forecasts the weathering processes and characteristics of oil slicks. Based on new research results and analysis...
To extract all the oil from a well, petroleum engineers pump hot reactive chemicals into the well. These Enhanced Oil Recovery (EOR) processes need to be thoroughly monitored, since the injected fluids can seep out of the production oil wells and, if unchecked, eventually pollute sources of drinking water. There is a need to measure the corresponding effects. One way to measure these undergroun...
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