نتایج جستجو برای: copperii compound
تعداد نتایج: 127868 فیلتر نتایج به سال:
in production of tissue paper, the adhesion of a liquid adhesive creping aid, compound polymer, as creping aids on the yankee dryer surface was investigated. a compound polymer was prepared based on mixing ratio of poly (amideamine)-epichlorohydrin resin (pae) as an adhesive agent, polyvinyl alcohol (pva) as a modifier agent, and cationic fatty acid (cfa) and ethylene glycol (eg) as release age...
in the present study, anti-anaphylactic, anti-inflammatory and membrane stabilizing properties of a lupine alkaloid plumerianine (compound 1), isolated from the root bark of plumeria acutifolia poir were investigated in animal models. the anti-anaphylactic activity of compound 1 (10, 25 and 50 mg/kg) was studied by using models such as passive cutaneous anaphylaxis, passive paw anaphylaxis and ...
calotropis gigantea (linn) and amoora rohituka (roxb.) have long been used in folkloric medicine for the treatment of various ailments in bangladesh. the present study was designed to investigate the cytotoxicity of isolated compounds from these two plants. two compounds, named β-boswellic acid (compound-1) and 2-methoxy-14-calamenenone (compound-2) were isolated from the flowers of calotropis ...
derivatives of pyridine-4-one are iron chelators with various biological activities including antifungal, anti-malarial, antiviral, anti-inflammatory and analgesic activities. this study was aimed to evaluate the analgesic effect of four new derivatives of 3-hydroxy pyridine-4-one in animal models. acetic acid-induced writhing and formalin tests were used to assess the analgesic activity in mal...
background: regarding the strong differentiation and anti-leukemic activity of dendrostellera lessertii extract, an active agent with similar capabilities was isolated from the crude extract of the plant leaves. the aim of this study was to determine whether the anti-proliferative effect observed for this compound, is differentiation-dependent among the drug-treated cells, using u937 cells. met...
افزایش سرعت شناورها و تمایل به استفاده از مواد کامپوزیت در ساخت کشتی های تندرو باعث شده است که مکانیک برخورد این شناورها خصوصاً بررسی های آماری و ریسک آنها از اهمیت ویژه ای برخوردار شود، لذا لزوم وجود یک راه ساده برای پیش بینی سریع مقدار خرابی و پاسخ سازه ضروری است. این در حالیست که در این زمینه تاکنون مطالعه کافی انجام نشده است. در این پروژه به دلیل پیچیدگی مکانیک برخورد شناورهای فایبرگلاس، ا...
sulfonated polystyrene/montmorillonite nanocomposite (ommt/ps-so3h) was prepared and used as a novel, efficient and inexpensive heterogeneous acid catalyst in the one-pot reaction three-component mannich reaction of ketones, aromatic aldehydes and amines under solvent-free conditions. the catalyst was characterized by xrd, sem, tg, bet and ft-ir techniques. this method has advantages of high yi...
This paper investigates the implementation of stress in English noun-noun compounds. First, a perception experiment examines how listeners perceive prominence in compounds. After that, significant acoustic correlates of prominence are established. Finally, a cluster analysis is described that classifies compounds on the basis of their phonetic features and which is capable of separating differe...
Hydrogen can be inadvertently introduced at any of several steps in the fabrication of optoelectronic devices. The most common consequence of hydrogenation is the passivation of dopant impurities, which leads to a decrease in the electrical conductivity of the material. The most successfully applied experimental technique for directly determining the involvement of hydrogen has been infrared-ab...
Compound (or mixed) document images contain graphic or textual content along with pictures. They are a very common form of documents, found in magazines, brochures, web-sites etc. Because of the very distinct nature of those two image classes (text/graphics vs. pictures), their compression invariably involves multiple compression systems and a region segmentation (classification) method. We rev...
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