نتایج جستجو برای: time curve

تعداد نتایج: 1987008  

Journal: :Journal of applied biomechanics 2008
Prue Cormie Jeffrey M McBride Grant O McCaulley

The purpose of this investigation was to examine the impact of load on the power-, force- and velocity-time curves during the jump squat. The analysis of these curves for the entire movement at a sampling frequency of 200-500 Hz averaged across 18 untrained male subjects is the most novel aspect of this study. Jump squat performance was assessed in a randomized fashion across five different ext...

غیاثی, نجفقلی , کاظمی, رحیم ,

The flow duration curve (FDC) is a classical method used to graphically represent the relationship between the frequency and magnitude of stream flow. Several factors are involved in the shape of (FDC), including climatic and physiographic parameter of basin. In this research, the relationship between (FDC) and the physical parameters of the basin were investigated. 20 hydrometric stations with...

Journal: :iranian journal of science and technology (sciences) 2008
m. kazaz

v. dannon showed that spherical curves in e4 can be given by frenet-like equations, and he thengave an integral characterization for spherical curves in e4 . in this paper, lorentzian spherical timelike andspacelike curves in the space time 41 r are shown to be given by frenet-like equations of timelike andspacelike curves in the euclidean space e3 and the minkowski 3-space 31 r . thus, finding...

ژورنال: علوم آب و خاک 2012
حمیدرضا فولادمند, , سحر هادی‌پور, ,

Soil water characteristic curve shows the relationship between soil water content and matric suction, which has an important role in water movement in the soil. The measurement of this curve is expensive and time-consuming in laboratory therefore, many methods have been proposed for its estimation including pedotransfer functions. By using the pedotransfer functions, soil water characteristic c...

In order to improve service quality and satisfy specific delivery requests from different customers, suppliers are tending to afford more efficient and convenient distribution services rather traditional approaches. For example, customers may change preferred hours of receiving their orders, and due to this, wholesalers must distribute goods in different time windows. In this article, for the f...

Journal: :مدیریت آب و آبیاری 0
مجید هماپور گورابجیری دانشجوی سابق علوم خاک، دانشکدۀ فناوری کشاورزی، دانشگاه محقق اردبیلی علی رسول زاده استادیار گروه مهندسی آب دانشکدۀ فناوری کشاورزی دانشگاه محقق اردبیلی

soil water retention curve is one of the crucial input parameters in any modeling study on water flow and solute transport in soils. direct measurement of soil water retention curve is time-consuming and costly. alternatively, pedotransfer functions (ptfs) may be used to indirectly estimate the soil water retention curve from easily measured soil properties. many equations for the soil water re...

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