نتایج جستجو برای: petroleum system

تعداد نتایج: 2245105  

Journal: :Journal of hazardous materials 2010
R M Pérez G Cabrera J M Gómez A Abalos D Cantero

The precipitation of chromium(III), copper(II), manganese(II) and zinc(II) by biogenic hydrogen sulfide generated by sulfate-reducing bacteria, Desulfovibrio sp., and the degradation of total petroleum hydrocarbons (TPH) in the presence of heavy metal by Pseudomonas aeruginosa AT18 have been carried out. An anaerobic stirred tank reactor was used to generate hydrogen sulfide with Desulfovibrio ...

2012
HUA LI ZHU WEN

With the expansion of stock market, investors and capital are increasing step by step, which makes the stock market an increasing impact on the macro-economy. In order to reveal the effect of macro factors on the specified industry’s stock price, a new nonlinear regression model is established with Eviews6.0 software in the paper. We take macro variables as samples which are based on interest r...

F. Sharififar M. Asgharian Rezee M. Miri-moghaddam*

Background and objectives: ZatariamultifloraBioss. (ZM) has shown several effects in gastrointestinal, respiratory and nervous system. In this study, the effect of Z. multiflora was examined in colon cancer cell lines of Caco-2. Methods: Total extract and petroleum ether, chloroform and methanol fractions of the plant were prepared us...

Journal: :Hans Journal of Chemical Engineering and Technology 2012

Journal: :Bangladesh Journal of Scientific Research 2018

The purpose of this study was to present a model of effective training system for staff of Iran Ministry of Petroleum. The research is consumed an applied research in terms of its goals, a qualitative one in terms of data and the data base is self-contained, in terms of the method of conducting the research. The study population consisted of experts in the field of education including universit...

Journal: :Environmental science and pollution research international 2016
Giambattista Guidi Merica Sliskovic Anna Carmela Violante Luka Vukic

An oil spill is the accidental or intentional discharge of petroleum products into the environment due to human activities. Although oil spills are actually just a little percent of the total world oil pollution problem, they represent the most visible form of it. The impact on the ecosystems can be severe as well as the impact on economic activities. Oil spill cleanup is a very difficult and e...

2007
Tomomichi Nakamura Michael Small

We propose a method from the viewpoint of deterministic dynamical systems to investigate whether observed data follow a random walk (RW) and apply the method to several financial data. Our method is based on the previously proposed small-shuffle surrogate method. Hence, our method does not depend on the specific data distribution, although previously proposed methods depend on properties of the...

2005
ChunXiao Wang

An Agilent Simulated Distillation (SIMDIS) system is described for quality control and monitoring of refinery processes. The system uses an Agilent 6890N gas chromatograph (GC) equipped with a programmable temperature vaporizer (PTV) inlet designed specifically for high temperature analysis. A simulated distillation software program that couples with the Agilent GC ChemStation provides an easy-...

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