Results 271 to 280 of about 651,062 (315)

Arcing Grounds and Effect of Neutral Grounding Impedance

Transactions of the American Institute of Electrical Engineers, 1930
This paper was written to review and extend the theory of overvoltages due to arcing grounds because of the increasing tendency to use impedances between the neutral point and the ground, thereby losing the advantage of the solidly grounded neutral. The ``third class conductor'' theory of Steinmetz is touched upon very briefly and is considered as not ...
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Wings in Ground Effect

2009
This book aims to introduce you, our readers, to a new type of marine craft. At present there are still very few of these machines, though as long ago as the 1970s, a secret military craft of this type twice as large as a Boeing 747 airliner was already on trials in the Caspian Sea for the Russian Navy.
Liang Yun, Alan Bliault, Johnny Doo
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Research on effects between grounding module and grounding eesistance

2008 IEEE/PES Transmission and Distribution Conference and Exposition, 2008
One of the methods to decrease the resistance of ground grids to safety regulation is to use the grounding module at present. In the first part, the ingredients and the principle of resistance reducing of grounding module were introduced. Then, set up the model of ground grids and simulated under different situations like the different fixed position ...
null Weiming Zhou, null Guangning Wu, null Xiaobin Cao, null Shenglin Li   +3 more
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Cause – Effect – Ground – Power.

2010
I continue to track down the first source of our knowledge of things, although I am in danger of tiring you out with intricacies. But if one wants to escape the snares of sophism, at least once in one’s life one has to work meticulously through all sorts of subtleties and make them clear. We have seen that the very frequent succession of one appearance
Moses Mendelssohn, Daniel O. Dahlstrom, Corey Dyck   +2 more
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Visual Simulation of Ground Effect

2013 5th International Conference on Intelligent Human-Machine Systems and Cybernetics, 2013
This paper provide a physically-Based framework for simulating the ground effect phenomena concerning helicopter hover between objects and the surrounding air. A simplified visual flow model including copters position and aircraft shape was introduced between the helicopter rotors and the ground.
Chong Zheng, Chao Zhang, Jihong Zhu
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Ground effects of large morphogenic earthquakes

Journal of Geodynamics, 2005
Morphogenic earthquakes are those seismic events capable of generating, or modifying, the surface morphology instantaneously and permanently (Caputo, 1993). It is also of interest to distinguish between linear and areal seismogenetic features, that is, features generated by a morphogenic earthquake.
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Ground rules for cost‐effectiveness

Aslib Proceedings, 1976
This paper was written in response to an invitation to give a talk on how to make information services cost‐effective. Its basic message is ‘use the systems approach’, but my aim will be to express this in practical rather than abstract terms. It will be based to a large extent on experience gained over the past eight years, from the work of the Aslib ...
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Dumping Ground or Effective Alternative

Urban Education, 1998
Focusing on students'perspectives, this article examines whetheran urban dropout prevention program offers students effective alternatives to regular classes or if, instead, the program is simply a dumping groundfor unwanted students. Findings generatedfrom interviews and observations suggest both.
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Propeller Partial Ground Effect

AIAA Scitech 2020 Forum, 2020
Jielong Cai, Sidaard Gunasekaran, Anwar Ahmed, Michael V. Ol   +3 more
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Blockage effect and ground effect on oscillating hydrofoil

Ocean Engineering, 2023
Guanghua He, Hassan Ghassemi
exaly