نتایج جستجو برای: gac

تعداد نتایج: 1220  

2013
Heng Gao William J. Blanford

The purpose of this study was to collect experimental data and develop a mathematical model describing the equilibrium phase distribution of a common organic chemical, trichloroethylene (TCE), among cyclodextrin (CD), water, and granular-activated carbon (GAC). Batch tests and a modified linear regression model were applied to assess the partitioning behavior in this multiphase (CD pseudophase–...

2014
YAN-YAN SONG LI-DAN SUN MIN-LI LIU ZHONG-LIANG LIU FEI CHEN YING-ZHE ZHANG YAN ZHENG JIAN-PING ZHANG

Vasculogenic mimicry (VM) formation is important for invasion and metastasis of tumor cells in gastric adenocarcinoma (GAC). The present study aimed to investigate the association between signal transducer and activator of transcription-3 (STAT3), phosphor-STAT3 (p-STAT3), hypoxia-inducible factor-1α (HIF-1α) and VM formation in GAC, and discuss their clinical significance and correlation with ...

سید غلامرضا موسوی, علیرضا ریاحی‌بختیاری فاطمه رضایی, یدالله یمینی

اهداف مهم‌ترین شاخص مؤثر در جذب آلاینده‌های فرّار از هوا، نوع جاذب است. به‌کارگیری جاذبی گزینش‌پذیر، به حذف آلاینده با هزینه کمتر و کارایی بیشتر منجر می‌شود. در این تحقیق، کارایی جاذب اکسیدمنگنز پوشانده‌شده بر سطح کربن فعال (MnO/GAC) برای حذف تولوئن از هوا بررسی شد. همچنین کارایی جاذب MnO/GAC در شرایط آزمایشی یکسان با کربن فعال ساده مقایسه شد. مواد و روش ها جاذب MnO/GAC با روش سل‌ژل تولید شد. زم...

2015
Sihai Hu Yaoguo Wu Hairui Yao Jianguo Wei Shuai Zhang

A composite of nano-zerovalent iron (nZVI) supported on granular activated carbon (GAC) was synthesizedthrough adsorption-reduction method, and its performances used as catalyst of Fenton-like were investigated to degrade methylene blue (MB) in model wastewater.Theresults show thathomogeneous dispersion of nZVI was greatly improved after supported on GAC. In comparison, the composite (nZVI/GAC)...

2008
L. Duan W. Li C. Ding B. Lv G. Wang X. Ma Y. Qu W. He H. Han

Efficiently making use of granular activated carbon (GAC) to reduce pollution is always a golden goal for water industry. We developed ultrasonication collection method for determination of the biomass and microbial attachment and growth in activated carbon filter. Based on this method, we found that using hydraulic cycle to immobilize cells onto GAC can greatly improve the attachment of inocul...

Journal: :Clinical and diagnostic laboratory immunology 2000
C Vaucher B Janvier J B Nousbaum B Grignon L Pezennec M Robaszkiewicz H Gouerou B Picard J L Fauchere

The aim of this study was to search for a specific antibody pattern in sera from patients suffering from Helicobacter pylori-related gastric adenocarcinoma (GAC). The serological response of 22 patients suffering from GAC, 31 patients with gastroduodenal ulcer, and 39 asymptomatic subjects was analyzed using immunoblotting performed with three H. pylori strains: strain ATCC 43579; strain B110, ...

2004
Michele Clements Johannes Haarhoff

The Rietvlei Water Treatment Plant was extended with a granular activated carbon (GAC) filtration system after an exhaustive series of tests, which were started in 1994. Upon commissioning towards the middle of 1999, a year of close monitoring followed to measure the GAC performance at full-scale. After verification that the GAC does indeed ensure a high quality product under all conditions, th...

2014
Saddig D. Jastaniah Bassam Z. Shakhreet Hanan Y. Abbas Awad M. Elkhadir Saeed M. Bafaraj

We explore the use of Granular Activated Carbon (GAC) as a mitigation technique for the treatment of drinking water that was artificially enriched with Rn-222 in laboratory by placing a radium rich granite stone (pitchblende) in a closed container filled with tap water for several days in order to allow Rn-222 concentration to approach its highest possible level. Granular Activated Carbon (GAC)...

Journal: :Bioelectrochemistry 2017
Nicole LaBarge Yasemin Dilsad Yilmazel Pei-Ying Hong Bruce E Logan

Microbial electrolysis cells (MECs) can generate methane by fixing carbon dioxide without using expensive catalysts, but the impact of acclimation procedures on subsequent performance has not been investigated. Granular activated carbon (GAC) was used to pre-enrich electrotrophic methanogenic communities, as GAC has been shown to stimulate direct transfer of electrons between different microbia...

Journal: :Food and nutrition bulletin 2003
L T Vuong J C King

Gac fruit (Momordica cochinchinensis Spreng) is indigenous to Vietnam and other countries in Southeast Asia. Its seed pulp contains high concentrations of carotenoids, especially the provitamin A, beta-carotene. In northern Vietnam, gac fruits are seasonal and are mainly used in making a rice dish called xoi gac. The purpose of this study was to develop a method to collect and preserve gac frui...

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