نتایج جستجو برای: tension factor

تعداد نتایج: 899712  

2003
Oleg Shpyrko Masafumi Fukuto Peter Pershan Ben Ocko Ivan Kuzmenko Thomas Gog Moshe Deutsch

Recent measurements show that the free surfaces of liquid metals and alloys are always layered, regardless of composition and surface tension, a result supported by three decades of simulations and theory. Recent theoretical work claims, however, that at low enough temperatures the free surfaces of all liquids should become layered, unless preempted by bulk freezing. Using x-ray reflectivity an...

Journal: :The British journal of ophthalmology 1992
J L Jay

Finger blood flow in patients with low tension glaucoma and primary open-angle glaucoma T Usui, KIwata Controlled trial of laser photocoagulation ofpigment epithelial detachments in the elderly: 4 year reviewMJ Barondes, S Pagliarini, IH Chisholm, AM Hamilton, A C Bird Detection of subpigment epithelial neovascularisation in cases of retinal pigment epithelial detachments: a review of the Moorf...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1386

دوره مشترک کارشناسی ارشد بازاریابی و تجارت الکترونیک دانشگاه تربیت مدرس_ دانشگاه تکنولوژی lule? چکیده پایان نامه عوامل موثر بر پذیرش اینترنت بانک توسط مشتریان پیشرفت فناوری اطلاعات و ارتباطات و به طور خاص رشد اینترنت جهت تراکنش های معاملات بازرگانی، تاثیر بسیار عمیقی در صنعت بانکداری داشته است.این در حالی ست که نفوذ بانکداری اینترنتی در کشورهای در حال توسعه بسیار کندتر از نفوذ آن ...

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Drought tension and iron fertilizer play an important role in determining the grain yield and quality of oil seed products. Therefore, a split plot-factorial experiment based on randomized complete blocks design with three replications was conducted to investigate the effect of foliar application of iron nano-chelate and folic acid on some quantitative and qualitative traits of two sesame culti...

Journal: :The Japanese journal of physiology 1974
M Goto Y Wada M Saito

1) Development and fall of tension during depolarization in the bullfrog atrial muscle were studied using a double gap voltage clamp arrangement. 2) Phasic and tonic tension developments and the following decay were noticed in the tension produced by depolarizing pulse of different durations and amplitudes. The phasic component appeared in response to a short-lasting pulse (0.1-0.2 sec), and re...

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

in this research, the effect of tension wood formation in populus nigra on its anatomical characteristics was studied. vessel element and ray frequency (n/mm²), vessel diameter and ray dimensions were measured in both normal and tension wood. furthermore, the formation of gelatinous layer (g-layer) in the fibers of tension wood was studied. the results showed that the vessel proportion and diam...

Journal: :Cell 2014
Cordelia Rauskolb Shuguo Sun Gongping Sun Yuanwang Pan Kenneth D. Irvine

Mechanical forces have been proposed to modulate organ growth, but a molecular mechanism that links them to growth regulation in vivo has been lacking. We report that increasing tension within the cytoskeleton increases Drosophila wing growth, whereas decreasing cytoskeletal tension decreases wing growth. These changes in growth can be accounted for by changes in the activity of Yorkie, a trans...

2017
Anna Zaleska-Żmijewska Maciej Janiszewski Zbigniew M. Wawrzyniak Marek Kuch Jerzy Szaflik Jacek P. Szaflik

Glaucoma (GL) and atrial fibrillation (AF) are diseases of significant social importance. Cardiovascular disorders such as systemic hypertension, hypotension, increased blood viscosity, vasospasm, and diabetes are potential risk factors of GL, especially when intraocular pressure is not elevated. Only a few studies have reported a possible connection between cardiac arrhythmias and GL. The purp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی مکانیک 1387

سازه ای که تحت بار استاتیکی قرار می گیرد. ممکن است در قسمتی از آن سطح تنش به حد تسلیم برسد. بنابراین سازه دچار تغییر فرم پلاستیک موضعی شده و دقت ابعادی خود را از دست خواهد داد. به منظور کنترل این رویداد تست ها و اندازه گیری های غیر مستقیم روی سازه ها انجام می شود که این تست ها ممکن است زمانبر یا پرهزینه باشدو. آکوستیک امیشن به عنوان یکی از روش های غیر مخرب و یک تکنیک اندازه گیری مستقیم، توانایی...

2014
Yuan Xie Jin Zhang Ying Lin Xavier Gaeta Xiangzhi Meng Dona R.R. Wisidagama Jessica Cinkornpumin Carla M. Koehler Cindy S. Malone Michael A. Teitell William E. Lowry

Hypoxia augments human embryonic stem cell (hESC) self-renewal via hypoxia-inducible factor 2α-activated OCT4 transcription. Hypoxia also increases the efficiency of reprogramming differentiated cells to a pluripotent-like state. Combined, these findings suggest that low O2 tension would impair the purposeful differentiation of pluripotent stem cells. Here, we show that low O2 tension and hypox...

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