نتایج جستجو برای: heading confinement pressure

تعداد نتایج: 434233  

Journal: :Physical review letters 2016
C J Ham S C Cowley G Brochard H R Wilson

The theory of tokamak stability to nonlinear "ballooning" displacements of elliptical magnetic flux tubes is presented. Above a critical pressure profile the energy stored in the plasma may be lowered by finite (but not infinitesimal) displacements of such tubes (metastability). Above a higher pressure profile, the linear stability boundary, such tubes are linearly and nonlinearly unstable. The...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Weixun Wu Xiao-Ming Zheng Guangwen Lu Zhengzheng Zhong He Gao Liping Chen Chuanyin Wu Hong-Jun Wang Qi Wang Kunneng Zhou Jiu-Lin Wang Fuqing Wu Xin Zhang Xiuping Guo Zhijun Cheng Cailin Lei Qibing Lin Ling Jiang Haiyang Wang Song Ge Jianmin Wan

Flowering time (i.e., heading date in crops) is an important ecological trait that determines growing seasons and regional adaptability of plants to specific natural environments. Rice (Oryza sativa L.) is a short-day plant that originated in the tropics. Increasing evidence suggests that the northward expansion of cultivated rice was accompanied by human selection of the heading date under non...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2012
Yong Gu Gregory C Deangelis Dora E Angelaki

The dorsal medial superior temporal area (MSTd) in the extrastriate visual cortex is thought to play an important role in heading perception because neurons in this area are tuned to both optic flow and vestibular signals. MSTd neurons also show significant correlations with perceptual judgments during a fine heading direction discrimination task. To test for a causal link with heading percepti...

2010
AM MANN

Introduction. Dedekind has determined all groups whose subgroups are all normal (see, e.g., [5, Theorem 12.5.4]). Partially generalizing this, Wielandt showed that a finite group is nilpotent, if and only if all its subgroups are subnormal, and also if and only if all maximal subgroups are normal [5, Corollary 10.3.1, 10.3.4]. Huppert [7, Sätze 23, 24] has shown that if all 2nd-maximal subgroup...

2006
Odd Erik Gundersen Samuel Rødal Geir Storli

We have reached our goal of implementing a computationally cheap algorithm for realtime rendering of realistic two-dimensional fire. The fire is simulated using computational fluid dynamics, vorticity confinement, and combustion modelling and visualized using black-body radiation. Small rotationally homogenous fires like torches and candles viewed in front are the best candidates when using thi...

Journal: :Frontiers in neurology 2016
Ana Carolina Rodrigues Rodrigo Pace Lasmar Paulo Caramelli

Soccer is the most popular sport in the world, with more than 265 million players worldwide, including professional and amateur ones. Soccer is unique in comparison to other sports, as it is the only sport in which participants purposely use their head to hit the ball. Heading is considered as an offensive or defensive move whereby the player's unprotected head is used to deliberately impact th...

2014
Harry H. Cheng

This article illustrates preparation of ASME paper using LATEX2ε . An abstract for an ASME paper should be less than 150 words and is normally in italics. NOMENCLATURE A You may include nomenclature here. α There are two arguments for each entry of the nomemclature environment, the symbol and the definition. The spacing between abstract and the text heading is two line spaces. The primary text ...

2007
Harry H. Cheng

This article illustrates preparation of ASME paper using LATEX2ε. An abstract for an ASME paper should be less than 150 words and is normally in italics. NOMENCLATURE A You may include nomenclature here. α There are two arguments for each entry of the nomemclature environment, the symbol and the definition. The spacing between abstract and the text heading is two line spaces. The primary text h...

2016
Oliver W. Layton Brett R. Fajen

Human heading perception based on optic flow is not only accurate, it is also remarkably robust and stable. These qualities are especially apparent when observers move through environments containing other moving objects, which introduce optic flow that is inconsistent with observer self-motion and therefore uninformative about heading direction. Moving objects may also occupy large portions of...

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