منابع مشابه
Research on the water-entry attitude of a submersible aircraft
BACKGROUND The water entry of a submersible aircraft, which is transient, highly coupled, and nonlinear, is complicated. After analyzing the mechanics of this process, the change rate of every variable is considered. A dynamic model is build and employed to study vehicle attitude and overturn phenomenon during water entry. Experiments are carried out and a method to organize experiment data is ...
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The popularity of non-invasive brain stimulation techniques in basic, commercial, and applied settings grew tremendously over the last decade. Here, we focus on one popular neurostimulation method: transcranial direct current stimulation (tDCS). Many assumptions regarding the outcomes of tDCS are based on the results of stimulating motor cortex. For instance, the primary motor cortex is predict...
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Th is article examines the status of submersible reference electrodes and presents a new design concept for submersible copper/copper sulfate (Cu/CuSO4) electrodes (CSE). In the new concept, the half-cell potential is independent of the salinity (chlorinity) of the electrolyte, the electrode is not subject to contamination, and structure-to-electrolyte voltages do not require correction to the ...
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Case Services' software provides production optimization for a variety of different methods of artificial lift. This paper discusses the dominant factors in electrical centrifugal submersible pump design and monitoring. Emphasis is placed on three areas: • Well inflow performance behavior. • Fluid Pressure-Volume-Temperature and phase behavior. • Pump equipment performance specifications. An ex...
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T here aren't many sports articles in the journal Science, so it was with great interest that I read " A Late Hit for Pro-Football Players " by Greg Miller (www. sciencemag.org). 3 This article is a very interesting compilation of recent research and developments in the area of sports-related concussion. The article highlights the efforts of Chris Nowinski, a former Harvard football standout wh...
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ژورنال
عنوان ژورنال: Nature
سال: 2014
ISSN: 0028-0836,1476-4687
DOI: 10.1038/509408a