نتایج جستجو برای: oil

تعداد نتایج: 138726  

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2014
David J Murphy

Declining production from conventional oil resources has initiated a global transition to unconventional oil, such as tar sands. Unconventional oil is generally harder to extract than conventional oil and is expected to have a (much) lower energy return on (energy) investment (EROI). Recently, there has been a surge in publications estimating the EROI of a number of different sources of oil, an...

2003
Branko Bijeljic Ann H. Muggeridge Martin J. Blunt

Understanding the dynamics of pore-scale multicomponent gas and oil mass transfer across water "lms during hydrocarbon gas injection in petroleum reservoirs is important in the design of tertiary oil recovery schemes at the "eld scale. The water "lms prevent oil and gas coming into direct contact and, for miscible gas injection, delay the onset of miscibility. We use a pore-scale model to descr...

2016
Sergei Seleznev Veronika Selezneva

Implementation of hydraulic fracturing dramatically altered the fundamentals in the oil and gas markets. A new technology rst got implemented in the natural gas market, but by 2012 unprecedentedly low gas prices forced most exploration rms to switch to shale oil exploration. Large capital expenditure on drilling activity resulted in the growth of oil production in the US, and likely triggered t...

2012
Jedrzej G. Frynas

Major oil spills normally occur from oil pipelines and oil tankers that are under operational control of companies, namely, oil companies and tanker owners. There are two generic responses for changing the behavior of companies with regard to oil spill prevention: mandatory government regulation or voluntary initiatives often pursued under the banner of Corporate Social Responsibility (CSR). He...

2013
Hamid Rashedi

INTRODUCTION Protect the oil wells to increase their longevity is now one of the major oil-producing countries is difficult. Each year, an extraordinary global budget for research on EOR and MEOR (enhanced oil recovery methods) is allocated. In addition, the owners of these vessels extraordinary efforts to exploit new, lower cost, and highly efficient techniques. A new and promising way to incr...

2014
Maira Rubi Segura-Campos Norma Ciau-Solís Gabriel Rosado-Rubio Luis Chel-Guerrero David Betancur-Ancona

A physicochemical characterization of oil from chia seeds was carried out. Proximate composition analysis showed that fat and fiber were the principal components in the raw chia flour. Physical characterization showed that chia oil has a relative density from 0.9241, a refraction index of 1.4761 and a color with more yellow than red units. Chemical characterization showed that chia oil register...

2009
Rhett A. Butler William F. Laurance

The Amazon Basin appears poised to experience rapid expansion of oil palm agriculture. Nearly half of Amazonia is suitable for oil palm cultivation, and Malaysian corporations are now moving aggressively into the region to establish new plantations. Strong economic incentives for a major Amazonian oil palm industry are likely, given growing global demands for edible oils, oil-based products, an...

Journal: :Malaysian journal of nutrition 2010
R Loganathan K R Selvaduray K Nesaretnam A K Radhakrishnan

The oil palm tree, Elaeis guineesis, is the source of palm oil, otherwise known as the "tropical golden oil". To date, Malaysia and Indonesia are the leading producers of palm oil. Palm oil is widely used for domestic cooking in Malaysia. Palm oil is a rich source of phytonutrients such as tocotrienols, tocopherol, carotene, phytosterols, squalene, coenzyme Q10, polyphenols, and phospholipids. ...

Journal: :Indian pediatrics 2005
A R Fernandez G Krishnamoorthy N Patil J A Mondkar B D Swar

This study was conducted to determine transcutaneous absorption of oil in preterm neonates. A mixture of coconut oil and Meadowfoam oil which contains unique fatty acids, which acted as marker fatty acids was applied to the skin of babies. One mL blood was collected before and one hour after post oil application. Both pre and post oil application serum samples were hydrolysed and derivatised wi...

2014
H. Cho J. T. Chung B. K. Yoo Y. Kim Jin Taek Chung

An analytical study was carried out to investigate the performance of an oil supplying system of a variable speed compressor using a commercial CFD program. The simulations for the oil supplying system with the oil and air mixture were performed by varying compressor speed from 40 Hz to 90 Hz. Comparing the predicted with the measured data on the modified scroll compressor validated the simulat...

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