نتایج جستجو برای: shaped set

تعداد نتایج: 726740  

Journal: :journal of sciences, islamic republic of iran 2014
m. hashemi gahruei

nanocomposites made of carbon nanotube (cnt) bundles have attracted researchers’ attention due to their unusual properties such as: light weight, flexibility and stiffness.  in this paper, the effects of straight and rope-shaped bundles on nanocomposite effective mechanical properties are investigated.  first, fea models are created consisting of cnts with different shapes of straight and rope-...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1390

تنش دمای پایین یکی از مهم ترین عوامل محیطی است که عملکرد گیاهان را محدود می نماید. شبکه وسیعی از ژن های مختلف در تنظیم تحمل گیاه به این تنش نقش ایفا می نمایند. در این تحقیق، نخست 921 عدد از ژن های مذکور از تحقیقات و مقالات معتبر علمی استخراج گردید و سپس به منظور شناسایی ژن های مشابه با آنها در ژنوم کامل دو گیاه سیب (malus domestica)و انگور (vitis vinifera)، توالی آمینو اسیدی این ژن ها در گیاه م...

Journal: :Mechanisms of Development 2008
Catherine Fromental-Ramain Luc Vanolst Claude Delaporte Philippe Ramain

Previous studies have shown that the pannier (pnr) gene of Drosophila encodes a GATA transcription factor which is involved in various biological processes, including heart development, dorsal closure during embryogenesis as well as neurogenesis and regulation of wingless (wg) expression during imaginal development. We demonstrate here that pnr encodes two highly related isoforms that share fun...

Journal: :The British journal of ophthalmology 1983
L M Collum P Logan T Ravenscroft

Forty patients with disciform keratitis were randomly assigned to double-blind treatment with 3% acyclovir and 0.01% betamethasone drops or acyclovir and matching placebo. All patients who received the combination healed in a median time of 21 days, while 11 of 19 patients who received acyclovir alone were withdrawn because their condition remained static or worsened (p less than 0.001). The co...

Journal: :Journal of rehabilitation research and development 2007
Tatiana A Kaminsky Brian J Dudgeon Felix F Billingsley Pamela H Mitchell Suzanne J Weghorst

In this study, adults with Parkinson's disease (PD) used virtual cueing spectacles (VCS) mimicking kinesia paradoxa in home and community settings to assess the impact on mobility and participation. We used an ABA single-subject design with repeated measures. Six adults with PD, akinesia, and stage III or IV Hoehn and Yahr rating scale status used VCS in their homes and communities for a week o...

2016
G. Richard Scott Kirk Schmitz Kelly N. Heim Kathleen S. Paul Roman Schomberg Marin A. Pilloud

C.G. Turner II made dental morphological observations on thousands of Eskimo-Aleuts and American Indians and concluded they were derived from ancestral populations in northeast Asia during the last stages of the Pleistocene. He further distinguished two dental patterns in Asia. In East Asia, populations exhibit Sinodonty, a specialized dentition with intensified trait expressions. Southeast Asi...

2008
Luis A. Escobar Yili Hong William Q. Meeker

In many areas of application, especially life testing and reliability, it is often of interest to estimate an unknown cumulative distribution (cdf). A simultaneous confidence band (SCB) of the cdf can be used to assess the statistical uncertainty of the estimated cdf over the entire range of the distribution. Cheng and Iles (1983) presented a general approach of constructing an SCB for the cdf ...

1997
Jae-Ha Lee Chan-Su Shin Jae-Hoon Kim Sung Yong Shin Kyung-Yong Chwa

We consider searching problems in robotics that a robot has to nd a path to a target by traveling in an unknown star-shaped polygon P. The goal is to minimize the ratio of the distance traveled by the robot to the length of the shortest start-to-target path. Let s be a starting point in P. We rst present a competitive strategy to nd a path from s to the closest kernel point k of P. The length o...

Journal: :Applied optics 2002
Elise Viard Louarn Miska Le Norbert Hubin

We study the performance of an adaptive optics (AO) system with four laser guide stars (LGSs) and a natural guide star (NGS). The residual cone effect with four LGSs is obtained by a numerical simulation. This method allows the adaptive optics system to be extended toward the visible part of the spectrum without tomographic reconstruction of three-dimensional atmospheric perturbations, resolvin...

2011
Bojana Drinčić Xiaobo Tan Dennis S. Bernstein

The contribution of this paper is a framework for relating butterfly-shaped hysteresis maps to simple (single-loop) hysteresis maps, which are typically easier to model and more amenable to control design. In particular, a unimodal mapping is used to transform simple loops to butterfly loops. For the practically important class of piecewise monotone hysteresis maps, we provide conditions for pr...

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