نتایج جستجو برای: residual oil saturation ros

تعداد نتایج: 305210  

2016
Ewa Skała Patrícia Rijo Catarina Garcia Przemysław Sitarek Danuta Kalemba Monika Toma Janusz Szemraj Dariusz Pytel Halina Wysokińska Tomasz Śliwiński

The essential oils were isolated by hydrodistillation from the hairy roots (HR) and roots of soil-grown plants (SGR) of Rhaponticum carthamoides and were analyzed by GC-MS method. In the both essential oils 62 compounds were identified. The root essential oils showed the differences in the qualitative and quantitative composition. The sesquiterpene hydrocarbons (55-62%) dominated in both essent...

Journal: :Agric (Salatiga) 2023

Weed interference results in increased synthesis of reactive oxygen species (ROS). High accumulation ROS causes oxidative stress and stimulates the activation antioxidant defense system plants. biotic form allelochemicals abiotic competition for plants which inhibition growth development Ageratum conyzoides is an annual weed plantations can cause on surrounding This study aims to determine effe...

Journal: :Journal of bioscience and bioengineering 2003
Zhanyou Yun Mutsumi Takagi Toshiomi Yoshida

The combined addition of reduced form of glutathione (GSH) and iron chelators for decrease of the intracellular level of reactive oxygen species (ROSs) and death of Chinese hamster ovary (CHO) cells was investigated. The addition of GSH to the serum-free cultures of CHO cells markedly lowered the intracellular ROS level, which effect was comparable to that of the addition of serum (0.4, 10%) an...

2007
V. SANDER MARTIN J. BLUNT

We use a three-dimensional mixed-wet random network model representing Berea sandstone to compute displacement paths and relative permeabilities for water alternating gas (WAG) flooding. First we reproduce cycles of water and gas injection observed in previously published experimental studies. We predict the measured oil, water and gas relative permeabilities accurately. We discuss the hysteres...

Journal: :IOP conference series 2021

Abstract Tuha oil field is located at the Turpan basin in China. Currently, water content of main reservoir section Y-6 more than 93% and recovery rate less 20%. At present, an efficient displacing agent must be selected for this field, which can used reservoirs with a high degree mineralization. Based on results experiments measuring interfacial tension surfactant solution oil, non-ionic was s...

2015
Pi Yanfu

Aim at the reservoir characteristics of Suizhong 36-1 Oil Field, this paper has developed typical twodimensional physical model in parallel between the layers and studied the macroscopic displacement effect of polymer flooding and binary compound flooding, and studied the interlayer spread law and oil displacement efficiency of polymer flooding and binary combination flooding by using saturatio...

2003
Scott A. Bradford Feike J. Leij

Studies of the relation between capillary pressure (Pc) and fluid saturation (S) for porous media containing oi l -water or a i r -o i l -water , often assume that the medium is strongly water-wet. Natural porous media, however, are composed of a variety of mineral constituents; such media are typically composed of waterand oil-wet fractions. This study reports on twoand three-fluid Pc-S data f...

Journal: :The British journal of nutrition 2004
María A Navarro Sergio Acín Ricardo Carnicer Mario A Guzmán-García José M Arbonés-Mainar Joaquín C Surra José A Cebrián Carmen Arnal Beatriz Isabel Clemente J López-Bote Jesús Osada

ApoA-IV is a protein constituent of HDL particles; the gene coding for it is a member of the ApoA-I-ApoC-III-ApoA-IV cluster. To investigate the effects of the quantity and the degree of saturation of dietary lipid on the long-term response of this Apo, and on the hypothetical coordinated regulation of the cluster in vivo, pigs were fed isoenergetic, cholesterol-free, low-lipid or lipid-enriche...

Journal: :SIAM J. Math. Analysis 2010
Clément Cancès

We consider an immiscible two-phase flow in a heterogeneous one-dimensional porous medium. We suppose particularly that the capillary pressure field is discontinuous with respect to the space variable. The dependence of the capillary pressure with respect to the oil saturation is supposed to be weak, at least for saturations which are not too close to 0 or 1. We study the asymptotic behavior wh...

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