نتایج جستجو برای: oil derivatives

تعداد نتایج: 242551  

2014
Verrill M. Norwood

In the rubber industry, plasticizers for rubber compounds mainly consist of petroleum derivatives. Consequently, the rubber industry is in constant competition with many petroleum consumers. This competition places an economic strain on rubber companies such as HEXPOL RUBBER COMPOUNDING L.L.C. In order to alleviate this strain, natural oil alternatives to petroleum plasticizers are of novel res...

2007
W. L. KOHLHASE W. E. NEFF R. A. AWL E. H. PRYDE J. C. COWAN

9-Aminononanoic acid, 9-aminononanamide, and related compounds derived from soybean oil by reactions, including reductive ozonolysis and reductive amination, were separated on an analytical scale either by gas liquid chromatography of trifluoroacetylated or trimethylsilylated derivatives or by thin layer chromatography and on a preparative scale by ion-exchange chromatography. Comparative analy...

2010
Michael McAleer Felix Chan

Risk management is crucial for optimal portfolio management. One of the fastest growing areas in empirical finance is the expansion of financial derivatives. The purpose of this special issue on “Risk Management and Financial Derivatives” is to highlight some areas in which novel econometric, financial econometric and empirical finance methods have contributed significantly to the analysis of r...

Journal: :Journal of the American College of Cardiology 2000
R A Vogel M C Corretti G D Plotnick

OBJECTIVES This study investigated the postprandial effect of components of the Mediterranean diet on endothelial function, which may be an atherogenic factor. BACKGROUND The Mediterranean diet, containing olive oil, pasta, fruits, vegetables, fish, and wine, is associated with an unexpectedly low rate of cardiovascular events. The Lyon Diet Heart Study found that a Mediterranean diet, which ...

2013
Snežana Maletić Božo Dalmacija Srđan Rončević

The development of human civilization throughout history has led to growing disruption of the natural balance and the occurrence of different types of pollution. The world depends on oil, and the use of oil as fuel has led to intensive economic development worldwide. The great need for this energy source has led to the gradual exhaustion of natural oil reserves. However, mankind will witness th...

Salvia reuterana Bioss. is an aromatic perennial plant traditionally used for its anxiolytic and sedative properties. In the present study, various fractions and essential oil of S. reuterana aerial parts were investigated to find its free radical scavenging principles. Hydroalcoholic fraction with IC50 value of 112.6 ±3.2 μg ml-1 in DPPH assay demonstrated the highest free radical scavenging a...

Journal: :Toxicology mechanisms and methods 2005
Harry G Preuss Bobby Echard Azad Dadgar Nadeem Talpur Vijaya Manohar Mary Enig Debasis Bagchi Cass Ingram

The antimicrobial properties of volatile aromatic oils and medium-chain fatty acids derived from edible plants have been recognized since antiquity. To give examples, Origanum oil, used as a food-flavoring agent, possesses a broad spectrum of antimicrobial activity due, at least in part, to its high content of phenolic derivatives such as carvacrol and thymol. Similarly, lauric acid, present in...

2006
H. RANG J. KANN V. OJA

The new requirements for sulfur content in liquid fuels demand the use of novel deep desulfurization processes. 4-methyldibenzothiophene, 4,6dimethyldibenzothiophene and their alkyl-substituted derivatives are the key substances that need to be separated from diesel fuel and fuel oil. These compounds require higher hydrogen consumption in the hydrodesulfurization process and the use of addition...

Journal: :تحقیقات نظام سلامت 0
وحید سروی مغانلو دانشجوی دکتری، گروه خاک شناسی، دانشکده کشاورزی، دانشگاه لرستان، خرم آباد، ایران مصطفی چرم دانشیار، گروه علوم خاک، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز، ایران حسین معتمدی استادیار، گروه میکروبیولوژی، دانشکده علوم پایه، دانشگاه شهید چمران اهواز، اهواز، ایران حمیدرضا پورزمانی دانشجوی دکتری، کمیته تحقیقات دانشجویی، مؤسسه تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان. اصفهان، ایران مرجان فلاح کارشناسی ارشد، گروه محیط زیست، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات اهواز، اهواز، ایران

background: long-term extraction and production of various oil derivatives causes contamination of soil adjacent to production and refining area. the main important issue is the ecological hazard of these pollutants. the main aim of the study was to identify and separate native bacteria that are responsible for degradation of oil contaminated fields. methods: we prepared a compound sample of co...

2006
Sevim Z. Erhan Brajendra K. Sharma Joseph M. Perez

Vegetable oils are promising candidates as base fluid for eco-friendly lubricants because of their excellent lubricity, biodegradability, viscosity–temperature characteristics and low volatility. Their use, however, is restricted due to low thermo-oxidative stability and poor cold flow behavior. This paper presents a systematic approach to improve the oxidation behavior and low temperature flui...

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