نتایج جستجو برای: prime mover

تعداد نتایج: 44059  

Journal: :Frontiers in Ecology and the Environment 2022

Something very odd was going on in the corner of my patio. An earthworm apparently hovering an inch above ground. Its wriggling did not, however, seem to be generating any levitational force, so how could it have freed itself from gravity? Closer inspection (with reading glasses now on) revealed that this actually no at all, but something far more interesting, and certainly not flying. Iberian ...

Journal: :Transactions of the Society of Instrument and Control Engineers 1969

Journal: :Mechanisms of Development 2009
Caren Norden Stephen Young Brian Link William Harris

As the neurogenerative epithelium of the vertebrate central nervous system expands during embryonic development, nuclei of neural progenitors undergo a process called interkinetic nuclear migration (IKNM). The nuclear movements of IKNM are generally believed to involve gradual migrations from apical to basal and back during the G1 and G2 phases of the cell cycle, respectively. Yet the kinetics ...

Journal: :Energies 2021

High torque and power density are unique merits of transverse flux machines (TFMs). TFMs particularly suitable for use in direct-drive systems, that is, those systems with no gearbox between the electric machine prime mover or load. Variable speed wind turbines in-wheel traction seem to be great-potential applications TFMs. Nevertheless, cogging torque, efficiency, factor manufacturing should s...

2013
Shan Wang Hasan Cavusoglu Ziliang Deng

This research investigates early mover advantage of a special group of online firms: entrepreneurial etailers that operate on third party eCommerce platforms. The conventional wisdom suggests that early mover advantage would not be substantial when barrier to entry is low. However, this research argues that etailers, even when barrier to entry is low online, can enjoy early mover advantage beca...

2014
D. Ghosh J. Sengupta

Progesterone is essential for endometrial receptivity in primates. It is now evident that embryo-derived signal influences implantation stage endometrium under progesterone dominance, and collectively results in endometrial receptivity to implanting blastocyst. Previously, a few studies were performed using global gene profiling based on microarray technology to identify changes in gene express...

2017
Adrien Querbes Koen Frenken

We propose a generalized NK-model of late-mover advantage where late-mover firms leapfrog first-mover firms as user needs evolve over time. First movers face severe trade-offs between the provision of functionalities in which their products already excel and the additional functionalities requested by users later on. Late movers, by contrast, start searching when more functionalities are alread...

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