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Mechanics of particles system in the Theory of Relativity

ميكانيك جملة (منظومة) جسيمات في نظرية النسبية

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 Publication date 2018
  fields Physics
and research's language is العربية
 Created by Shamra Editor




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Studying the mechanics of particle systems in special relativity is one of the most complex issues. However, this study sets us up to lay the groundwork for building a set of important laws. The motion of particle masses as a whole was determined by their energy, impulse and static mass. It was also found that the total energy of the system of mutual action requires taking into account the energies of these mutual acts between the particles. Contrary to the systems of the mutual acts of collisions, approximate formulas for interplay between charged particles were determined by studying the collision of relativistic particles-Compton's effect. Finally, the case of the movement of the charged particles of weak interacts was discussed, and the movement of the interconnected particles was discussed through mutual electromagnetic acts using the concept of mutual action between the particles of the system.

References used
Ben Yu-Kuang Hu, Relativistic momentum and kinetic energy, and E = mc2, Eur. J. Phys. 30 (2009) 325–330
Mohamed Salem, The Relativistic Mechanic Theory of the String, Journal of Modern Physics, 2015, 6, 374-380
Michael Tsamparlis, Special Relativity, Springer, 2010
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We take the effective Hamiltonian operator until the sixth degree [18] and this operator has enabled us to convert from gauge theory with group SU(2) into the study of statistical quantum mechanics with the group SU(2) and this mean physically we hav e converted from the study of an infinite number of particles and of freedom degrees (quarks- gluons-plasma) into study of three particles (Global) independed of space that mains nine of freedom degrees and specifically nine anharmonic oscillators and after that we apply Wigner’s mode [16] on homogenous modes remaining after quantization of the inhomogenous modes and we have concluded the relation of real-time evolution of the color magnetic energy and the color electric energy .
We take the effective Hamiltonian operator until the sixth degree[12] and this operator has enabled us to convert from pure gauge theory with group SU(2) into the study of statistical quantum mechanics with the group SU(2) and this mean physically we have converted from the study of an infinite number of particles and of freedom degrees (quarks- gluons-plasma) into study of three particles (Global) that mains nine of freedom degrees and specifically nine anharmonic oscillators and after that we apply Wigner’s mode[16] on homogenous modes remaining after quantization of the inhomogenous modes and we have concluded the relation of real-time evolution of the color magnetic energy and the color electric energy .
In this research, we studied a number of characteristics of two surface barrier detectors, one from LD and the other from PH, dedicated to detecting alpha particles. and comparing between characteristics of detectors. For the operating characteris tic, we found that the optimal operating voltage of the LD detector is located in the range (1.35-1.4) volts, while of the PH detector was located in the range (0.9-1.35) volts. For the detection capability, we found that the LD detector is better than the PH detector, this is due to the presence thinner metal surface layer for LD detector.,
بحث في نظرية البيان يحتوي الفصل الاول على أساسيات ومبادئ برمجية لبرمجة خوارزميات البيان و تمثيل البيان برمجيا , و يحتوي الفصل الثاني على شرح لطرق عبور البيان باستخدام خوارزميات البحث في العرض و البحث في العمق , فيما يعرض الفصل الثالث خوارزميات أساسية في البيان , مثل خوارزمية الترتيب الطوبولوجي و خوارزميات أقصر طريق دايكسترا Dijekstra و floyd warshall , التعامل مع الحالات التي يحتوي البيان فيها وصلات تكلفة سالبة و البيان الخالي من الدورات Acyclic .
The main goal of maintaining and repairing equipment and machines during the investment stages is to reduce the amount of money spent in order to maintain the validity of their operation and the quality of their reliability under the different give n investing conditions (type of manufacturing materials, methods used, temperatures, nature of investment, …. etc). This goal can be achieved if we are able to control changes in the technical conditions of equipment and the frictional parts during the investment stages, besides knowing the physical laws/rules that govern the technical changes properly. Therefore, we carried out a study on the theoretical plans of physical wear of brakes and the frictional parts in means of transportation. This is done starting from wet (oily) wear plans of the frictional parts in machines. Then, based on these plans we studied physical laws/rules determining the intensity of dry wear of brakes, along with its speed and acceleration during the investment and the unreliable, uneconomical (unsafe) operation stages, taking into consideration the methods used in periodical technical maintenance, ways of driving, and the average number of times brakes are used…etc . Based on these formulas obtained, we can estimate/predict the start of ineffectiveness of brakes and friction linings, in addition to the inception time of risky (unreliable) operation stage. Consequently, this stage gives us indications for replacement or treating with the traditional (known) mechanical and chemical ways, in light of the soaring prices of materials in the Syrian Arab Republic.

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