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41 articles for “Polya”
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Research ArticleOpen accessIn the author namesDEEP TRAPS SPECTRA IN UNDOPED GAN FILMS GROWN BY HYDRIDE VAPOR PHASE EPITAXY UNDER VARIOUS CONDITIONSA. Y. Polyakov, N. B. Smirnov, A. V. Govorkov et al.Decreasing the residual donors density and deep traps spectra densities in undoped GaN films grown by Hydride Vapor Phase Epitaxy (HVPE) is very important for promoting the use of such material in high-voltage/high-power rectifiers, radiation detectors. In this study we studied the effects of changing the growth temperature of undoped HVPE GaN films on these properties. The two groups of … …American Journal of Applied Sciences, Vol. 11, Issue 9 · 30 Sep 2014 · 6,906 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Developed Version of Conjugate Gradient Method With a New Parameter for Dai-Liao Conjugacy Condition With an Application to Solar PanelAhmad Alhawarat, Ramadan Sabra, Mehiddin Al-Baali et al.Conjugate Gradient (CG) methods are broadly employed in solving bigger-scale unconstrained optimization problems. Two famous methods are the Hestenes–Stiefel (HS) as well as Polak–Ribière–Polyak (PRP) CG methods, which usually work well in practice. However, they cannot satisfy the Global Convergence (GC) property. To retain and enhance the previous practical behavior as well as rectify the latter difficulty, this paper constructs … …Journal of Computer Science, Vol. 21, Issue 7 · 15 Jul 2025 · 3,153 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacteristics of Collagen from Parrotfish (Chlorurus Sordidus), Tiger Grouper (Epinephelus Fuscoguttatus) and Pink Ear Emperor (Lethrinus Lentjan): Effect of Acetic Acid Concentration and Extraction TimeAsep Awaludin Prihanto, Abdul Aziz Jaziri, Mohammad D. Pratomo et al.The use of marine fish's skin waste such as parrotfish (Chlorurus sordidus), tiger grouper (Epinephelus fuscoguttatus), and pink ear emperor (Lethrinus lentjan) needs improvement to increase its economic value and sustainability. Therefore, this study aims to investigate the effect of fish skin to acetic acid ratio with different extraction times on the yield and characteristics of skin collagen obtained from … …OnLine Journal of Biological Sciences, Vol. 22, Issue 1 · 28 Jan 2022 · 6,679 accessesView PDFCite
Research ArticleOpen accessIn the abstractSoil Organic Carbon Pool and its Storage in Arial Beel Wetland Soils of BangladeshMd. Faruque Hossain, ASM Maksud Kamal, Monera Akhter Eva et al.The actual quantity of Soil Organic Carbon (SOC) stored in wetlands can only be estimated within a broad range of uncertainty. An accurate assessment of the size and distribution of the SOC storages in wetland resources is very difficult to obtain, therefore, the proposed research objective is to measure SOC storage and its pool on wetland soils of Arial beel … …American Journal of Environmental Sciences, Vol. 16, Issue 3 · 17 Aug 2020 · 7,386 accessesView PDFCite
Research ArticleOpen accessIn the abstractAdsorption and Descaling of Cellucotton and Chitosan-Modified Bentonite for Produced WaterTao Yu, Ying Wang, Chengtun Qu et al.The compatibility of non-identical layers within the water present in the produced oil is poor and ion reactions in the oil mixed with water result in scale formation, thereby having a significant impact on oilfield safety production. In this study, methods for the descaling of produced water from different blocks were studied according to the quality characteristics of the produced … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 2 · 18 May 2020 · 6,668 accessesView PDFCite
Research ArticleOpen accessIn the abstractInhibitory Effect of Crude Walnut Leaf Polysaccharides on Oxidative Damage of Proteins and Proliferation of SGC-7901 CellsShuqing Yang, Zhike Xie, Shuyan Yu et al.In this paper, we studied the inhibitory effect of crude Walnut Leaf Polysaccharides (WLP) on free radical-induced oxidative damage of proteins and anti-proliferation activity on human Gastric Cancer cells (SGC-7901). The oxidative degradation of Bovine Serum Albumin (BSA), mouse brain proteins (MBP) and Mouse Liver Proteins (MLP) induced by hydroxyl radical and alcoxyl radical was analyzed by Sodium Dodecyl Sulfate-Polyacrylamide … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 2 · 26 Apr 2020 · 7,061 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Chemical Coagulants for Oscillatoria sp. Removal from Raw Water on Chemical Coagulation ProcessSaowapak Thammasane, Thaniya KaosolGrowing Oscillatoria sp. in freshwater causes several poisoning episodes of domestic livestock animal and human. The chemical coagulation of raw water using chemical coagulants is very simple and requiring less investment cost on equipment. These experiments used alum and PACl (Polyaluminium chloride) with alum as chemical coagulants for Oscillatoria sp. removal. The Oscillatoria sp. was prepared from Molecular and Cell … …American Journal of Environmental Sciences, Vol. 14, Issue 6 · 14 Dec 2018 · 8,614 accessesView PDFCite
Research ArticleOpen accessIn the abstractFractionation of Organic Carbon in Arial Beel Wetland Soils of BangladeshMonera Akter Eva, Mahmudul Islam Piash, Md. Faruque Hossain, Zakia ParveenA study was conducted to determine the organic carbon fractions in the vertical sections of a benchmark wetland soil of Bangladesh (Arial Beel) and their dynamics that directly affect the biogeochemistry of soil, water and plant biomass ecosystem. Two distinctive soil series viz. Sara and Arial are characterized such as pH, moisture content, textural class, CEC, organic carbon (SOC), bulk … …American Journal of Environmental Sciences, Vol. 14, Issue 2 · 4 May 2018 · 9,139 accessesView PDFCite
Research ArticleOpen accessIn the abstractElectrophoretic Identification of Casein in Various Types of MilkMakhpal Yelubaevna Yelubaeva, Shynar Yırmkızy Kenenbay, Mirash Hudretovna Narmuratova et al.Casein proteins of camel milk were obtained from skimmed milk by sedimentation (pH 4.6) at 24°C. To sediment proteins from mare milk, pH was increased to 4.6 and milk was centrifuged at 45,000 rpm for 30 minutes at 4°C. The supernatant obtained after centrifugation was heated up to 30°C for further fractionation of whey proteins. The sedimented casein from camel … …OnLine Journal of Biological Sciences, Vol. 17, Issue 4 · 1 Dec 2017 · 8,136 accessesView PDFCite
Research ArticleOpen accessIn the abstractCombination of Serological Tests (Anti-CCP Antibody, Rheumatoid Factor IgM ELISA and Latex Test) are more Useful in Detection of Rheumatoid ArthritisAnindya Das, Chimanjita Phukan, Chitralekha BaruahRheumatoid arthritis is a polyarticular and chronic inflammatory disease occurring throughout the world. To prevent significant joint damage, early diagnosis and proper treatment is of paramount importance. Though patients are diagnosed clinically supported by radiography and serological tests, early disease may present with non-specific arthritis and absence of specific radiographic findings. Though anti-CCP antibody is used for the diagnosis and … …American Journal of Immunology, Vol. 13, Issue 3 · 23 Sep 2017 · 7,393 accessesView PDFCite