نتایج جستجو برای: fayḍ al

تعداد نتایج: 443033  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده فنی 1392

هدف از این تحقیق ساخت کامپوزیت های al/al?o?/sicبه روش متالورژی پودر می باشد. ابتدا زمان مناسب برای آسیاکاری و دمای مناسب برای تف جوشی در نمونه های al/20%sic تعیین شد. زمان آسیاکاری و دمای تف جوشی بهینه که به ترتیب 8 ساعت و ?c600 تعیین شد، جهت ساخت کامپوزیت های تقویت شده با ذرات sicو al?o? به کار گرفته شد. پودرهای مورد نظر ابتدا با درصد های حجمی al/20%sic، al/20%al?o?، al/5%al?o?/15%sic، al/10%a...

Journal: :پژوهشنامه ثقلین 0
مجید معارف استاد دانشگاه تهران مهدیه دهقانی قناتغستانی دانشجوی دکتری دانشگاه تهران

abstractmuhammad asif mohseni, a shia religious authority and an afghan political activist, has recently published the second printing of his al-mu’jam al-ahadith al-mu’tabarah in 8 volumes. a new arrangement has been adopted regarding the jurisprudential and non-jurisprudential chapters of the book, which indicates the author’s stance toward the status of reason and science as well as the posi...

Journal: :بحوث فی اللغه العربیه 0
سمیه حسنعلیان دانشگاه اصفهان سید محمد رضا ابن الرسول دانشگاه اصفهان

considering the role of witness in the different sciences of language and literature and the importance of the muallaqat in arabic literature and the importance of explanations of these poems, in the present study, it is intended to study the method of commentators n applying the the different evidence of the quran, hadith, poetry, proverb, descriptive - analytical method was employed. the resu...

Journal: :The Biological bulletin 2009
K E Feitl A F Millett S P Colin J O Dabiri J H Costello

Scyphomedusae undergo a predictable ontogenetic transition from a conserved, universal larval form to a diverse array of adult morphologies. This transition entails a change in bell morphology from a highly discontinuous ephyral form, with deep clefts separating eight discrete lappets, to a continuous solid umbrella-like adult form. We used a combination of kinematic, modeling, and flow visuali...

2016
A. Ruiz - Villalba A. Rojas KD. Wagner N. Wagner R. Munoz - Chapuli B. Bauce I. Rigato E. Carturan S. Rizzo G. Thiene C. Basso

470 Extracardiac endothelium patterns embryonic coronary arterio-venous connections JM. Perez-Pomares1; E. Cano2; R. Carmona1; A. Ruiz-Villalba3; A. Rojas4; Y-Y. Chau5; KD. Wagner6; N. Wagner6; ND. Hastie5; R. Munoz-Chapuli1 University of Málaga, Málaga, Spain; Max Delbruck Center for Molecular Medicine, Berlin, Germany; University of Navarra, Pamplona, Spain; Centro Andaluz de Biologı́a Molecul...

2014
M. A. Fariborzi Araghi

In this paper, the convergence of Zakharov-Kuznetsov (ZK) equation by homotopy analysis method (HAM) is investigated. A theorem is proved to guarantee the convergence of HAM and to find the series solution of this equation via a reliable algorithm. c ⃝ 2014 IAUCTB. All rights reserved.

2001
Andrew K. Rose

Et Tu, Torsten? This critique of my Economic Policy paper generates many emotions. It is certainly an honor for my research to be taken seriously by such an eminent scholar as my friend Torsten Persson. And while any publicity is good, a negative citation dominates a positive one. There is irony; I came up with the original idea in a hallway conversation with Harry Flam a few feet from Persson’...

Journal: :Molecular ecology 2011
Laura Southcott Katherine L Ostevik

A traditional view of the nature of species holds that populations within species maintain genetic cohesion through substantial intraspecific gene flow and that the whole genome of a species is protected from interspecific gene flow by strong reproductive isolation. Both aspects of this view have been challenged. Reproductive barriers between recently evolved species can be incomplete and perme...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2004
J G Tundisi T Matsumura-Tundisi J D Arantes Júnior J E Tundisi N F Manzini R Ducrot

This paper describes and discusses the impacts of the passage of cold fronts on the vertical structure of the Carlos Botelho (Lobo-Broa) Reservoir as demonstrated by changes in physical, chemical, and biological variables. The data were obtained with a continuous system measuring 9 variables in vertical profiles in the deepest point of the reservoir (12 m) coupled with climatological informatio...

2018
Zoe Muller

Giraffe populations in East Africa have declined in the past thirty years yet there has been limited research on this species. This study had four objectives: i) to provide a baseline population assessment for the two largest populations of Rothschild's giraffes in Kenya, ii) to assess whether there are differences in population structure between the two enclosed populations, iii) to assess the...

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