نتایج جستجو برای: au
تعداد نتایج: 78630 فیلتر نتایج به سال:
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We propose an asymptotic-preserving (AP) scheme for kinetic equations that is efficient also in the hydrodynamic regimes. This scheme is based on the BGK-penalty method introduced by Filbet-Jin [14], but uses the penalization successively to achieve the desired asymptotic property. This method possesses a stronger AP property than the original method of Filbet-Jin, with the additional feature o...
MA-II area is one of the most important parts of Cu-Au porphyry mineralization at Maherabad prospect area. Subvolcanic intermediate intrusive rocks (Upper Eocene), monzonite to diorite in compositions, intruded telescopically and are mostly altered. Monzonitic porphyries had major role in mineralization. These intrusive rocks are highly altered, have dense stockwork veinlets, and show highest g...
Gold nanostar particles were synthesized using seed-mediated method. Au-seed was synthesized with the diameter of approximately 3 nm and a considerably low STDEV of less than 1 nm. Then, different amount of Au seed was introduced into the growth solution of nanostars and the influence of the changes in concentration of Au seed on the growth process was investigated. The size of gold nanostars i...
Scintigraphic techniques can measure sequentially gastric emptying, small bowel transit, and colonic transit in humans, and comparable methods for experimental studies in animals would be useful. We developed such a method in dogs and examined the effects of prokinetic drugs on regional transit. Two isotopes were given to fasting dogs. Polystyrene pellets labeled with99mTc were mixed in a can o...
محاسبات dft جهت مطالعه مکانیسم افزایش ایندول به سیکلو پروپن فعال شده به وسیله au(i) مورد مطالعه قرار گرفت. نتایج ما نشان می دهند که افزایش اولین اکی والان از ایندول به وسیله کاتیون au(i) کاتالیست می گردد. محاسبات ما نشان می دهند که مرحله تعیین کننده سرعت، مرحله انتقال پروتون بروی کربن ? است. نکته جالب توجه این است که واکنش افزایش دومین اکی والان از ایندول توسط h+ کاتالیست می شود.
در ریاضیات، عمل مشتق گیری، اشتقاق گفته می شود. مبحث اشتقاق ها ارتباط نزدیکی با موضوع نیم گروه های یک پارامتری دارد. مولد بی نهایت کوچک نیم گروه های یک پارامتری در شرایط خاص، همان اشتقاق است. اکنون تعمیم هایی از اشتقاق ها را به صورت جبری در نظر می گیریم. $-sigma$اشتقاق هاو $-(sigma, au)$اشتقاق هاتعمیم هایی از اشتقاق می باشند، که تعمیم هایی از نیم گروه های یک پارامتری، مرتبط با ای...
CAMERAS ONBOARD THE YUTU ROVER OF CHANG’E 3 MISSION. Weidong Jin, Hao Zhang, Ye Yuan, Kaichang Di, Wenhui Wan, Bin Xu, Bin Xue, Yazhou Yang, Long Xiao, and Ziwei Wang, School of Earth Sciences, China University of Geosciences, Wuhan, China ([email protected] ), State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, ...
Shiyong Peng,1 Diego J. Garzon,1 Monica Marchese,1 William Klein,2,3 Stephen D. Ginsberg,4 Beverly M. Francis,5,6 Howard T. J. Mount,5,6 Elliott J. Mufson,7 Ahmad Salehi,8 and Margaret Fahnestock1 1Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario L8N 3Z5, Canada, 2Institute for Neuroscience, Northwestern University, Evanston, Illinois 60611, 3Depart...
3-Au surface result in top layer Si atoms with an SiAu4 butterfly wing configuration. The structure of a (6x6)-Au phase, whose in-plane top atomic layer positions were previously determined by an electron holography technique [Grozea et al. Surf. Sci. 418, 32 (1998)], is calculated using total energy minimization. The Patterson function for this structure is calculated and is in good agreement ...
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