نتایج جستجو برای: plan curvature

تعداد نتایج: 142450  

Journal: :iranian journal of science and technology transactions of civil engineering 2015
m. jahanandish d. azan

soil slopes are sometimes curved in plan rather than being straight. this curvature,especially when it is convex, decreases the bearing capacity of the slope. finite element methodhas been used here in this research to investigate the reducing effect of curvature on bearingcapacity of a slope. failure of soil has been assumed to be according to mohr-coulomb criteria;but the flow rule of the soi...

This research focuses on alluvial fans in desert area. Alluvial fans are one of the most important geomorphological units in desert area. There are several tremendous methods to separate alluvial fans. There are qualitative and quantitative factors to differentiate them from other geomorphological units. In this study effective geomorphometrical parameters in differentiate landforms were applie...

Erosion and sedimentation that will lead to morphological changes in rivers are found in alluvial rivers. Morphological changes in rivers can cause numerous problems, so studying the shape of alluvial rivers in morphology is very important in morphology science. In this study, morphology changes of the Zohreh River in the Hendijan plain, for a length of about 23 km between latitudes 30´ 49° and...

Journal: :journal of seismology and earthquake engineering 0
p. sunitha indian institute of technology madras c.v.r. murty indian institute of technology madras rupen goswami indian institute of technology madras

methods are proposed to develop idealized moment-curvature response curves of slender rectangular rc wall sections with uniformly distributed longitudinal reinforcement, using limit states, namely, cracking of concrete in tension, tensile yielding of reinforcement layers, and compression failure of concrete. it is recommended that tensile yielding of an inner layer of reinforcement is considere...

Journal: :مرتع و آبخیزداری 0
امیر هوشنگ احسانی دانشیار دانشکدة محیط زیست، دانشگاه تهران مرضیه فروتن دانشجوی دکتری جغرافیا، دانشگاه کلگری کانادا

in this study the land surface in western half of hyper-arid lut desert, in south east of iran, which is covered by yardangs, a worldwide typical landform for aeolian erosion, were classified by self organizing maps (som) method. in the first step by using digital elevation model with 10 m resolution and matlab software, 22 morphometric parameters were calculated based on derivative of the surf...

Journal: :نشریه دانشکده فنی 0
حسین محسنی

the coordinate transformation allows the exact calculation of some electrode configurations. in this paper the prolate spherical coordination transformation is used to calculate the field of a hyperboloiderod against plan electrode. the exact field is caculated using two new parameters: 1) electrodes spacing and 2) the radius of curvature of the tip of the rod electrode. the partial discharge i...

2009
J Durmala T Kotwicki J Piotrowski

Materials and methods Twenty-eight consecutive pre-menarchial girls aged 10 to 14 years (mean 12.6 ± 1.1 years) started a treatment plan for thoracic idiopathic scoliosis, having radiological proof of progression. Eighteen of them had an additional structural lumbar curvature. The Cobb angle revealed a magnitude of 21.0° to 40.0° (mean 30.8° ± 5.5°) in the thoracic curvature and 17.0° to 40.0° ...

ژورنال: مرتع و آبخیزداری 2017

دشت سرها ازجمله مهمترین واحدهای ژئومرفولوژی می‏باشند که به لحاظ فعالیت‏ها انسانی و بهره برداری، بیشتر مورد توجه قرار می‏گیرند. تاکنون روش‏ها و عوامل مختلفی نیز جهت طبقه بندی مناطق دشتی ارائه شده است. یکی از روش‏های طبقه بندی که بیشتر در مطالعات منابع طبیعی در ایران مورد استفاده قرار می‏گیرد، تقسیم بندی واحد دشت سر به سه تیپ دشت سرلخت، اپانداژ و پوشیده می‏باشد که عوامل مختلف کمی و کیفی جهت تفکیک...

2013
TAPIO RAJALA

We prove that in metric measure spaces where the entropy functional is Kconvex along every Wasserstein geodesic any optimal transport between two absolutely continuous measures with finite second moments lives on a non-branching set of geodesics. As a corollary we obtain that in these spaces there exists only one optimal transport plan between any two absolutely continuous measures with finite ...

2008
Emese Szádeczky-Kardoss Bálint Kiss

This paper discusses how to plan continuous-curvature paths for carlike wheeled mobile robots. The task is to generate a trajectory with upper-bounded curvature and curvature derivative. To solve this problem we use three path planning primitives, namely straight line segments, circular segments, and continuous-curvature turns (CC turns) in the path planning. We give a classification of the CC ...

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