نتایج جستجو برای: electric spark gap
تعداد نتایج: 288348 فیلتر نتایج به سال:
A partially screened vacuum gap model of the inner acceleration region in pulsars is examined with respect to the drifting subpulse phenomenon and the polar cap heating by the streams of back-flowing particles generated in sparks associated with drifting subpules. We investigated correlation between the intrinsic drift rate and polar cap heating rate and found that they are coupled to each othe...
The need for modern data analytics to combine relational, procedural, and map-reduce-style functional processing is widely recognized. State-of-the-art systems like Spark have added SQL front-ends and relational query optimization, which promise an increase in expressiveness and performance. But how good are these extensions at extracting high performance from modern hardware platforms? While S...
The phase composition and electrical transport properties of Cu powder obtained by electric spark dispersion and the pellets manufactured from this powder were studied by X-ray phase analysis and electric resistance measurements. The compacted powders were annealed in pure Ar atmosphere. It was shown that electrical resistance of the compacted Cu specimens essentially depends on the annealing t...
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