نتایج جستجو برای: block ramps
تعداد نتایج: 159998 فیلتر نتایج به سال:
One of the biggest concerns associated with integrating a large amount of renewable energy into the power grid is the ability to handle large ramps in the renewable power output. For the sake of system reliability and economics, it is essential for power system operators to better understand the ramping features of renewables, load, and netload. In this paper, an optimized swinging door algorit...
AIMS Present study was performed to compare the dynamics of human L-type calcium current (ICa,L) flowing during rectangular voltage pulses, voltage ramps, and action potentials (APs) recorded from epicardiac and endocardiac canine ventricular cells. METHODS ICa,L was recorded in single myocytes isolated from undiseased human hearts using the whole cell voltage clamp technique. RESULTS The d...
The voltage-dependent activity of prestin, the outer hair cell (OHC) motor protein essential for its electromotility, enhances the mammalian inner ear's auditory sensitivity. We investigated the effect of prestin's activity on the plasma membrane's (PM) susceptibility to electroporation (EP) via cell-attached patch-clamping. Guinea pig OHCs, TSA201 cells, and prestin-transfected TSA cells were ...
Experiments were done using guinea-pig sympathetic neurones dissociated from the stellate ganglia to establish whether calcium-induced calcium release (CICR) modulated action potential (AP) generation in mammalian neurones. Using measurements of intracellular calcium ([Ca(2+)](i)) with the Ca(2+)-sensitive dye fluo-3, we demonstrated that 10 mM caffeine activated ryanodine receptors and caused ...
Deceleration lanes are important because they help drivers transition from high-speed lanes to low-speed ramps. Although they are designed to allow vehicles to depart the freeway safely and efficiently, many studies report high accident rates on exit ramps with the highest percentage of crashes taking place in deceleration lanes. This paper describes the results of a driving simulator study tha...
Introduction Sand ramp is a kind of sand dune located on or in the foot of some mountains slopes of arid and semi-arid regions. Although these landforms does not differ from other types of sand dunes in these areas apparently, but, there are significant differences between them from the point of view of slope, sediment grain size, Morphology, sediment homogeneous, stratigraphy, laminatio...
We investigate the problem of determining planar curves that describe ramps where a particle mass \begin{document}$ m $\end{document} moves with constant-speed when is subject to action friction force and whose magnitude id="M2">\begin{document}$ F(r) depends only on distance id="M3">\begin{document}$ r f...
The objectives of this study were to determine whether attached nodules of soybean (Glycine max L. Merr.) could adjust to gradual increases in rhizosphere pO(2) without nitrogenase inhibition and to determine whether the nitrogenase activity of the nodules is limited by pO(2) under ambient conditions. A computer-controlled gas blending apparatus was used to produce linear increases (ramps) in p...
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