Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54061#.VOBZxSzQrzE Author(s) Arie Shenkman , Saad Tapuchi , Dmitry Baimel Affiliation(s) Electrical and Electronics Engineering Department, Shamoon College of Engineering, Beer Sheva, Israel . ABSTRACT The paper proposes a new type of the synchronous capacitive machine operated on a principle of the electric field effect. The proposed machine has smaller size and lighter weight than the standard electromagnetic synchronous machines with the same rated parameters. Another important advantage is a simple structure of the machine, which simplifies the production process and reduces the costs of the motor. The paper also presents extensive simulation results of the proposed capacitive machine. The simulation results show that the proposed machine is able to reach the same power output as the electromagnetic machines.   KEYWORDS Capacitive Machine , Ele...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53432#.VMWoOSzQrzE Author(s)    Pavel Tishchenko *   Affiliation(s) Laboratory of Hydrochemistry, V.Il’ichev Pacific Oceanological Institute, Vladivostok, Russia . ABSTRACT The equations for gradient of electric field in seawater induced by gradients of salinity, temperature and pressure were developed by means of non-equilibrium thermodynamics. Extrathermodynamic assumptions and accepted chemical model of seawater permit to carry out numerical calculations of electric field caused by diffusion, thermodiffusion and barodiffusion for realistic hydrophysical structure of the ocean. It is shown that contribution of barodiffusion into electric field of the ocean is almost constant (about -3 × 10 -7 V/M). This magnitude can be ignored in many cases because it is too small. However natural salinity and temperature gradients significantly impact into ...