نتایج جستجو برای: gac
تعداد نتایج: 1220 فیلتر نتایج به سال:
Objective: Gastric cancer (GC) is a with poor prognosis despite advances in diagnosis and treatment methods, postoperative morbidity mortality rates are high. The aim of this study was to evaluate the predictive early prognostic effect pre-treatment albumin globulin ratio (AGR) patients gastric adenocarcinoma (GAC).
 
 Methods: included male female who were operated on GAC our general...
Non binary constraints have recently been studied quite extensively since they represent real life problems very naturally. Specifically, extensions to binary arc consistency into generalised arc consistency (GAC), and forward checking that incorporates a limited amount of GAC have been proposed, to handle non-binary constraints directly. Enforcing arc consistency on the dual encoding has been ...
Chlorine dioxide is widely used as a pre-oxidant and disinfectant but it has the disadvantage of inducing the formation of the inorganic by-products chlorites and chlorates. It is therefore of interest to decrease the chlorine dioxide demand and oxidation, and/or removal of natural organic matter (NOM). The objective of this study was to estimate the efficiency of the adsorption of oxidised and...
Granular activated carbon (GAC) was used to remove bromide (Br⁻) and bromate (BrO(3)(-)) from drinking water in both bench- and pilot-scale experiments. The present study aims to minimize BrO(3)(-) formation and eliminate BrO(3)(-) generated during the ozonation of drinking water, particularly in packaged drinking water. Results show that the Br⁻ and BrO(3)(-) levels in GAC-treated water decrea...
We address the issue of segmenting multiple textured objects in presence of a background texture. The proposed technique is based on Geodesic Active Contour (GAC) and can segment multiple textured objects from the textured background. For an input texture image, a texture feature space is created using scalogram obtained from discrete wavelet transform (DWT). Then, a 2-D Riemannian manifold of ...
Pharmaceutically active compounds (PhACs) widely present in urban wastewater effluents pose a threat to ecosystems the receiving aquatic environment. In this work, efficiency of granular activated carbon (GAC) - based catalytic processes, namely wet peroxide oxidation (CWPO), peroxymonosulfate (PMS/GAC) and peroxydisulfate (PDS/GAC) at ambient temperature pressure were studied for removal 22 Ph...
زمینه و هدف: وجود نیترات در آب آشامیدنی موجب مشکلات بهداشتی و محیط زیستی فراوانی میگردد. این پژوهش با هدف بررسی کارایی روش احیاء نیترات توسط فرآیند fe/h2o2 و جذب روی کربن فعال صورت پذیرفت. مواد و روشها: در این مطالعه تجربی، اکسیداسیون نیترات توسط فرآیند اکسیداسیون پیشرفته fe°/feіі/feш/h2o2 در ph 10-2، غلظت نیترات 50 تا 300 میلیگرم بر لیتر انجام شد. پس از تنظیم ph، مقادیر 5/0، 1، 2، 5 و 10 گر...
Nitrate contamination of water resources and the growing concentration of nitrate endanger human health and the environment and considering its reduction strategies from water resources is important. The aim of this study was to investigate the possibility of removal of nitrate from aqueous solutions using granular activated carbon from grape wood coated with iron nanoparticles. The results sho...
Group A Streptococcus (GAS) is a leading cause of infection-related mortality in humans. All GAS serotypes express the Lancefield group A carbohydrate (GAC), comprising a polyrhamnose backbone with an immunodominant N-acetylglucosamine (GlcNAc) side chain, which is the basis of rapid diagnostic tests. No biological function has been attributed to this conserved antigen. Here we identify and cha...
It is unclear whether Indo-European languages in Europe spread from the Pontic steppes in the late Neolithic, or from Anatolia in the Early Neolithic. Under the former hypothesis, people of the Globular Amphorae culture (GAC) would be descended from Eastern ancestors, likely representing the Yamnaya culture. However, nuclear (six individuals typed for 597 573 SNPs) and mitochondrial (11 complet...
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