نتایج جستجو برای: crystal purification

تعداد نتایج: 214645  

Journal: :Journal of Low Temperature Physics 2022

Abstract The Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) experiment aims at the direct detection of dark matter particles via their elastic scattering off nuclei in a scintillating CaWO $$_4$$ 4 target crystal. crystal is operated together light d...

Journal: :Open ceramics 2021

Nanoscaled VO2 structures were made using a fast microwave-assisted synthesis method in acetophenone as solvent, starting from vanadium pentoxide V2O5. Insights the reaction and purification process elaborated by attenuated total reflection infrared nuclear magnetic resonance spectroscopy, which validated choice of oleyl amine ligand solvent. A straightforward heat treatment inert atmosphere wa...

Journal: :Angewandte Chemie 2022

Abyssomicin C and its atropisomer are potent inhibitors of bacterial folate metabolism. They possess complex polycyclic structures, their biosynthesis has been shown to involve several unusual enzymatic transformations. Using a combination synthesis in vitro assays we reveal that AbyV, cytochrome P450 enzyme from the aby gene cluster, catalyses key late-stage epoxidation required for installati...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید صدوقی یزد 1379

امروزه ، مرفولوژی اسپرم بعنوان یکی از پارامترهای مهم نمونه های انزالی مطرح می باشد. تعیین دقیق مرفولوژی طبیعی اسپرم که بخشی از آنالیز سیمن را شامل می شود در تعیین روش درمانی مناسب جهت زوج نابارور نقش بسزایی دارد. هدف اصلی این مطالعه تجربی مقایسه روشهای رنگ آمیزی ‏‎(h and e)hematoxylin-eosin,crystal violet‎‏ و روش ‏‎wet‎‏ با رنگ آمیزی ‏‎geimsa (who)‎‏ در تعیین مرفولوژی اسپرم انسانی بوده است .

M. Ghanbari, M. R. Aboutalebi, S. G. Shabestari,

Geometrical design of the spiral crystal selector can affect crystal orientation in the final single crystal structure. To achieve a better understanding of conditions associated with the onset of crystal orientation in a spiral crystal selector, temperature field was investigated using three-dimensional finite element method during the process. Different geometries of spiral crystal selec...

Introduction: Crystal meth by induction of free radical formation in brains cells and lipid peroxidation cause to the apoptosis. The aim of present study is to investigate the effect of extract of Scrophularia striataon spatial memory, lipid peroxidation and alteration of antioxidant enzymes levels. Methods: In this experimental study, 42 male Wistar rats were divided into 6 groups, including:...

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