The erosion rates for hemispherical electrodes, 2.5 em in diameter, made of graphite, copper-graphite, brass, two types of copper-tungsten, and three types of stainless steel have been examined in a spark gap filled with air or nitrogen at one atmosphere. The electrodes were subjected to 50,000 unipolar pulses (25 )ls, 4-25 kA, 5-30 kV, 0.1-0.6 Coul/shot) at repetition rates ranging from 0.5 to...

Densest-packed structures of identical ellipses within a parallel strip have been obtained through Monte Carlo simulations and analytic derivations. Each such is an affine transformation particular densest-packed structure circular disks. Three types identified: Types X Y correspond, respectively, to stretches along the perpendicular axial directions strip, type M corresponds locally densest st...

in this paper, the rolling force and reduction ratio have been investigated in multilayer strip rolling. for this purpose, two different set of multilayers have been selected which are al/st/al and cu/al/cu layouts. at first, the validation of the numerical analysis was performed by using an experimental test. after validation of the numerical results, two set of multilayer layouts were simulat...

Most automobile manufacturers maintain many vehicle types to keep a successful position on the market. Through the further development all vehicle types gain a diverse amount of new functionality. Additional features have to be supported by the car’s software. For time efficient accomplishment, usually the existing electronic control unit (ECU) code is extended. In the majority of cases this ev...

This paper presents a new approach for the design of a multiband uniplanar CPW-fed monopole antenna. The antenna consists of a fork like monopole strip to which is added an inverted U-shaped strip. The three branch fork like strip can create three resonant bands within the WLAN range while the placement of the inverted U-shaped strip provides a better impedance matching for the lowest resonant ...

CLASSIFIER Mitesh Popat and S V Barai 1 Johns Hopkins University, Baltimore, USA 2 Indian Institute of Technology, Kharagpur, India. Abstract: In most cases visual inspection of the hot strip by an inspector (in real time or videotaped) is a difficult task. The issues in this project study are data modeling, Machine Learning (ML) model neural networks (NN) modeling and reliability of such model...

Strip-till technology was formed in the USA on a short corn-soybean crop rotation. Both crops are harvested September-October and thereby exclude appearance of post-harvest weeds. In addition, both grown wide-row crops, this prompted emergence strip cultivation technology. is an alternative tillage option between traditional plowing direct seeding. When applying technology, soil deeply loosened...

Pulsational properties of 1.8 M⊙ stellar models covering the latest stages of contraction toward the main sequence up to early hydrogen burning phases are investigated by means of linear nonadiabatic analyses. Results confirm that pre-main sequence stars (pms) which cross the classical instability strip on their way toward the main sequence are pulsationally unstable with respect to the classic...