نتایج جستجو برای: oil

تعداد نتایج: 138726  

2014
P. Bushnell Paul Bushnell

This paper addresses the generation and control of oil droplets in rolling piston type refrigerant compressors at speeds greater than 5000 RPM. This work is part of the development of a variable speed compressor which addresses the problem of critically low oil sump levels that can occur at these extreme speeds. This paper identifies the dominant mechanism of oil droplet generation based on exp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده شیمی 1392

پژوهش های بسیاری نشان داده اند که گیاهان جنس zygophyllum غنی از ترکیبات تری ترپن ساپونین وکیونوویک اسید وفلانویید هستند . در این پژوهش به بررسی سه دسته از ترکیبات طبیعی پرداخته شده است یکی از این دسته ترکیبات روغن های فرار به نام essential oil هستند که از این دسته 27 ماده شناسایی شد ومقدار آنها در گیاه مشخص گردید. دومین دسته تر کیبات آنتراسن است که از این دسته نیز 2 ترکیب مشخص گردید وسومین د...

Journal: :Soft matter 2014
Bernard P Binks Tomoko Sekine Andrew T Tyowua

A series of platelet sericite particles coated to different extents with a fluorinating agent has been characterised and their behaviour in mixtures with air and oil studied. The material which forms by vigorous shaking depends on both the surface tension of the oil and the surface energy of the particles which control their degree of wetting. Oil dispersions are formed in liquids of relatively...

2017

Original Research A comparative evaluation of efficacy of chloroform, xylene, rectified white turpentine oil, eucalyptus oil and peppermint oil as GuttaPercha solvent: An in vitro study. Kumar A, Pandey KR, Mishra A Abstract: Objective: To compare the efficacy of chloroform, xylene, rectified white turpentine oil, eucalyptus oil and peppermint oil as Guttapercha solvent. Material & Methods: The...

Journal: :Bioinspiration & biomimetics 2016
Claudia Zeiger Isabelle C Rodrigues da Silva Matthias Mail Maryna N Kavalenka Wilhelm Barthlott Hendrik Hölscher

The cleanup of accidental oil spills in water is an enormous challenge; conventional oil sorbents absorb large amounts of water in addition to oil and other cleanup methods can cause secondary pollution. In contrast, fresh leaves of the aquatic ferns Salvinia are superhydrophobic and superoleophilic, and can selectively absorb oil while repelling water. These selective wetting properties are op...

2016
Daniel Oloumi

Oil-reservoir management using measurements and control techniques have been in use by oil and gas industries to improve the production and maintenance of the existing oil reservoirs. In the course of this project the applications of UWB radar systems and techniques to acquire near real-time information about the oil reservoir conditions are studied. Various oil reservoir structures such as oil...

2008
A. Garcia-Lopez D. N. Sinha

This paper explores the use of acoustics for the recovery of oil in oil-water emulsions. A series of experimental studies were conducted using acoustic standing waves in resonant cavities as means of trapping oil droplets and enhancing oil separation. Several cavity configurations were explored and the frequency range used was between 1 MHz-2 MHz. Oil-water emulsions studied were made using min...

Journal: :The British journal of nutrition 2010
Dimitris Tousoulis Nikolaos Papageorgiou Charalambos Antoniades Anastasios Giolis George Bouras Panagiota Gounari Elli Stefanadi Antigoni Miliou Theodora Psaltopoulou Christodoulos Stefanadis

Consumption of different types of oil may have different effects on cardiovascular risk. The exact role of maize oil, cod liver oil, soya oil and extra virgin olive oil on endothelial function, oxidative stress and inflammation is unknown. We evaluated the effect of acute consumption of these types of oil on endothelial function, oxidative stress and inflammation in healthy adults. Thirty-seven...

2017
Shivayogi Hugar Punit M Patel Jyoti Nagmoti Chaitanya Uppin Laresh Mistry Neha Dhariwal

Aim To comparatively evaluate the efficacy of disinfecting ability of garlic oil, neem oil, clove oil, and tulsi oil with autoclaving on endodontic K files tested against Enterococcus faecalis. Materials and methods Fifty endodontic K files were exposed to the test micro-organism and checked for its disinfecting ability using three different methods. Result Garlic oil, clove oil, tulsi oil ...

Journal: :The American journal of clinical nutrition 1996
G Schectman L E Boerboom J Hannah B V Howard R A Mueller A H Kissebah

To assess whether fish oil-induced alterations in low-density-lipoprotein (LDL) composition have distinct and important effects on LDL metabolism, we evaluated LDL kinetic behavior in cynomolgus macaques fed an atherogenic diet supplemented with either fish oil (1.6 g n-3 fatty acids; n = 10) or olive oil (n = 9) for > or = 6 mo. LDL from monkeys supplemented with fish oil or olive oil was isol...

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