نتایج جستجو برای: ch iranicum

تعداد نتایج: 23605  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم ریاضی 1391

چکیده در این پایان نامه که مراجع اصلی آن [15] ، [18] و [25] است ابتدا به بررسی طولپاهای خطی-حقیقی بین جبرهای یکنواخت و همچنین طولپاهای خطی روی فضاهای c^((n)) [0,1] و lip[0,1] می پردازیم که c^((n)) [0,1]، فضای توابع n-بار مشتق پذیر با مشتق n-ام پیوسته روی [0,1] و lip[0,1]، فضای توابع پیوسته لیپ شیتس روی [0,1] است. فضاهای c^((n)) [0,1] و lip[0,1] را با نرم های خاصی در نظر می گیریم و در این حالت ...

2002

b An electroanalytical method for studying electrode reactions, called cyclic chronopotenticmetry, in which the applied current is successively reversed a t each t,*ansition, is proposed. A circuit for carrying out automatic current reversals is described. T h e equations for the successive transition times for linear diffusion in a singie clmponent system have been derived and solved, and t h ...

Journal: :Chemical communications 2010
Yanfeng Bi Guancheng Xu Wuping Liao Shangchao Du Xinwu Wang Ruiping Deng Hongjie Zhang Song Gao

A [Co(24)] metallamacrocycle with a [36-MC(Co)-12] periphery and an inner [24-MC(Co)-6] rim is constructed by linking six Co(4)-thiacalixarene shuttlecock-like SBUs with twelve 1,2,4-triazole molecules.

Journal: :مجله تحقیقات سلامت 0
m. noori-shadkam m.h. mosadegh m. mirzaei mr. movahedi nia m. jafarizadeh

introduction: congenital hypothyroidism (ch) is one of the most common preventable causes of mental retardation. its worldwide incidence is estimated to be one in 2500-5500 births. assessment of thyroid gland in neonates is critical. the aims of this study were to demonstrate the incidence of ch in neonates born in yazd province, iran in 1389 (2010) and compare the results with other reported s...

Journal: :iranian endodontic journal 0
negin ghasemi mohammad frough reyhani amin salem milani hadi mokhtari faezeh khoshmanzar

introduction: the aim of this in vitro study was to evaluate the effect of calcium hydroxide (ch) on push-out bond strength of white mineral trioxide aggregate (wmta) and calcium-enriched mixture (cem) cement in simulated furcation perforations. methods and materials: furcation perforations, measuring 1.3 mm in diameter and 2 mm in height, were created in 80 human mandibular first molars. the t...

Journal: :Chemistry 2013
Manuel Iglesias Pablo J Sanz Miguel Victor Polo Francisco J Fernández-Alvarez Jesús J Pérez-Torrente Luis A Oro

The β-Z selectivity in the hydrosilylation of terminal alkynes has been hitherto explained by introduction of isomerisation steps in classical mechanisms. DFT calculations and experimental observations on the system [M(I)2{κ-C,C,O,O-(bis-NHC)}]BF4 (M=Ir (3a), Rh (3b); bis-NHC=methylenebis(N-2-methoxyethyl)imidazole-2-ylidene) support a new mechanism, alternative to classical postulations, based...

Journal: :Journal of biomaterials applications 2010
Jihong Yan Liu Yang Guirong Wang Yang Xiao Baohong Zhang Nianmin Qi

A thermosensitive polymer can be held liquid before being injected to deliver living cells or therapeutic agents and formed monolithic gels when injected in vivo. In this study, chitosan-based thermosensitive hydrogels were prepared, characterized and the biocompatibility for culturing mice bone mesenchymal stem cells (BMSC) on 2D films and within 3D hydrogel were investigated. The gelation tem...

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