نتایج جستجو برای: velocity change

تعداد نتایج: 723900  

Journal: :Science 2011
B Sandel L Arge B Dalsgaard R G Davies K J Gaston W J Sutherland J-C Svenning

The effects of climate change on biodiversity should depend in part on climate displacement rate (climate-change velocity) and its interaction with species' capacity to migrate. We estimated Late Quaternary glacial-interglacial climate-change velocity by integrating macroclimatic shifts since the Last Glacial Maximum with topoclimatic gradients. Globally, areas with high velocities were associa...

2006
Pith Xie Yiqiang Chen Junfa Liu Dongrong Xiao

Driving a realistic facial animation with Support Vector Machine(SVM) requires determining the shape-to-wrinkle correspondence, which includes not only spatial dependency, but also temporal dependency. A few available frameworks(e.g., Recurrent Neural Network and Long Short-Term Memory), represent temporal dependency as the dependency of output on position input series, which however may bring ...

Journal: :Journal of applied physiology 2000
C Y Seow V R Pratusevich L E Ford

Force-velocity curves measured at different times during tetani of sheep trachealis muscle were analyzed to assess whether velocity slowing could be explained by thick-filament lengthening. Such lengthening increases force by placing more cross bridges in parallel on longer filaments and decreases velocity by reducing the number of filaments spanning muscle length. From 2 s after the onset of s...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
shabnam sanaei navid mostoufi ramin radmanesh rahmat sotudeh gharebagh jamal chaouki

effect of temperature on hydrodynamics of bubbling gas-solid fluidized beds was investigated.  experiments were carried out in the range of 25-600 ºc and different superficial gas velocities in the range of 0.17-0.78 m/s with sand particles. time-position trajectory of particles was obtained by radioactive particle tracking technique. these data were used for determination of mean velocities of...

Mokhtar Attari, Noureddine Ababou, Youcef Remram,

Accurate measurements of physical characteristics of bone are essential for diagnosis, assessment of change following treatment, and therefore, indirectly, for evaluation of new forms of therapy. This is particularly true of osteoporosis and aging skeleton, in which fractures occur easily. Methods: In this study an ultrasonic system was set-up and calibrated on Plexiglas tubes of variable thick...

Objective: Change of control strategy in osteoporotic people and their focus on the hip strategy, also the occurred postural changes, result in the displacement of center of pressure (COP). This study was carried out to compare the static stability parameters in healthy, osteopenic and osteoporotic women. Methods: Seventy-one volunteer postmenopausal women aged 48-65 years were divided into th...

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1974

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