SCIREA Journal of Physics is an
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Abstract:This work is based on the topological properties of the solution one-dimensional unsteady gas flow system with constant speed sonic. The paper presents the principle of constructing a mesoscopic analogy-computing device that implements addition and multiplication operations. The fie effect, which is modeled by these operati
Abstract:In this paper, in the absence of forces we show how it is possible calculated the velocity of a moving uniform and rectilinear body without use external benchmarks. This is done using photodetectors that measure the arrival time of light from a point internal source to fixed equal distances inside the body. We also
Abstract:This paper aims to realize the reduction between/among different valid categorical syllogisms and establish a concise formal axiomatic system for categorical syllogistic. Making full use of the tripartite structure of categorical propositions, the symmetry of no and some, the definable relationship between the quantifier al
Abstract:In 1900, Rayleigh put forward a complete expression of blackbody radiation distribution function, but the specific coefficient value was not given. It was not until 1905 that Rayleigh reconsidered the problem of blackbody radiation in the long wave region that he calculated the specific coefficient value, but the coefficien
Abstract:This paper compares the magnetic fields of linearly moving charges with those of orbit ally moving charges. With simple qualitative experiments are shown the structure of the magnetic fields created by these movements. The concept of a pole less magnetic field is introduced, which is created by linear and inertial moving po
Abstract:In his 1905 special relativity paper, Einstein defined clock synchronization occurs when photon transmissions traverse a distance (or rod) with equal time spans in either direction. With a universal photon speed, he discovered clocks on the ends of a rod moving parallel with uniform velocity cannot be synchronized, but cloc
Abstract:Based on the double exponential distributions of trap states in the channel of the hydrogenated amorphous silicon thin film transistor (a-Si:H TFT), a new extraction method of the threshold voltage for a-Si:H TFTs has been developed. By taking advantage of the conductivity, the expression of the drain current corresponding
H. Van Cong, K. C. Ho-Huynh Thi, P. Blaise, C. T. Pivet, C. V. Huynh, M. Cayrol, S. Munoz
Abstract:In two new single n^+(p^+)-p(n)\ X(x)-alloy junction solar cells at 300 K,\ [X(x)\equivCdS_{1-x}{\rm Se}_x, CdS_{1-x}{\rm Te}_x],0\lex\le1, by basing on the same physical model-and-treatment method, as used in our recent works [1, 2], we obtain the highest (or maximal) efficiencies, \eta_{Imax.(IImax.)}, given in the foll
Abstract:In the n^+(p^+)-p(n) crystalline (X\equivGe, GaSb, CdTe or CdSe)-junction solar cells at 300K, due to the effects of impurity size, temperature, heavy doping, and photovoltaic conversion, we show that, with an increasing donor (acceptor)-radius r_{d\left(a\right)}, both the relative dielectric constant and photovoltaic conv
Abstract:The influence of the Coriolis inertial force, generated by orbital and spin motions of distant objects, on the energies of electromagnetic radiation during the exchange of photons between them is shown. The presence of a red or blue spectral shift arising from this influence has been demonstrated, which is fully consistent
