O. M. Abo-Seida, N. Eldabe, Ahmed Ali, G. A. Shalaby
A Far-field with calculation of intrinsic impedance, ohmic heating and antenna temperature of radiated ideal (Hertzian) dipole antenna have been discussed in free space and lossless background. Actually, there is great important to analysis the radiation resistance mechanism of a Hertzian dipole antenna in an infinite isotropic lossless medium. We also discussed the momentum and energy flow in electromagnetic fields with investigation that wavefront/phase velocity is equals to light speed in far zone. The temperature of lossless Hertzian antenna is equal to brightness temperature To.
{"title":"Far-Field, Radiation Resistance and temperature of Hertzian Dipole Antenna in Lossless Medium with Momentum and Energy Flow in the Far- Zone","authors":"O. M. Abo-Seida, N. Eldabe, Ahmed Ali, G. A. Shalaby","doi":"10.24297/jap.v18i.8803","DOIUrl":"https://doi.org/10.24297/jap.v18i.8803","url":null,"abstract":"A Far-field with calculation of intrinsic impedance, ohmic heating and antenna temperature of radiated ideal (Hertzian) dipole antenna have been discussed in free space and lossless background. Actually, there is great important to analysis the radiation resistance mechanism of a Hertzian dipole antenna in an infinite isotropic lossless medium. We also discussed the momentum and energy flow in electromagnetic fields with investigation that wavefront/phase velocity is equals to light speed in far zone. The temperature of lossless Hertzian antenna is equal to brightness temperature To.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88224664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The temperature dependence of exciton-polariton damping in InP bulk crystal was extracted by the method of integrated absorption. The extraction procedure excluding the contribution of inhomogeneous broadening into the exciton ground state absorption linewidth is graphically illustrated. The extracted temperature-dependent damping is analyzed regarding the primary dissipative mechanism in order to determine the material parameters of exciton-polariton scattering by acoustic and optical phonons.
{"title":"Extraction of temperature-dependent exciton-polariton damping in InP bulk crystal","authors":"S. Vaganov","doi":"10.24297/jap.v18i.8805","DOIUrl":"https://doi.org/10.24297/jap.v18i.8805","url":null,"abstract":"The temperature dependence of exciton-polariton damping in InP bulk crystal was extracted by the method of integrated absorption. The extraction procedure excluding the contribution of inhomogeneous broadening into the exciton ground state absorption linewidth is graphically illustrated. The extracted temperature-dependent damping is analyzed regarding the primary dissipative mechanism in order to determine the material parameters of exciton-polariton scattering by acoustic and optical phonons.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76362842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Understanding that everything is in a relationship led us to ask what then is the relationship that caused particles to be. Our investigation led us to understand that all particles are made up of the same stuff we called konke, Something that has experimental backing. Understanding that this konke must get into relationships so that we get particles, we have a chance to look at particles from what they are made off understanding. It is how much of konke that gives a particle mass and its categorization. What is the nature of magnetism from the viewpoint that all things are made of the same stuff, konke. Two simple experiments are requiring a vacuum that will help solve the nature of magnetism, which should end up as a discrete phenomenon, like all other phenomena. Rely on experimentation as much as possible.
{"title":"Magnetism: Entanglement, Konke and the Magnet as Discrete","authors":"Bhekuzulu Khumalo","doi":"10.24297/jap.v18i.8811","DOIUrl":"https://doi.org/10.24297/jap.v18i.8811","url":null,"abstract":"Understanding that everything is in a relationship led us to ask what then is the relationship that caused particles to be. Our investigation led us to understand that all particles are made up of the same stuff we called konke, Something that has experimental backing. Understanding that this konke must get into relationships so that we get particles, we have a chance to look at particles from what they are made off understanding. It is how much of konke that gives a particle mass and its categorization. What is the nature of magnetism from the viewpoint that all things are made of the same stuff, konke. Two simple experiments are requiring a vacuum that will help solve the nature of magnetism, which should end up as a discrete phenomenon, like all other phenomena. Rely on experimentation as much as possible.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"2002 1","pages":"29-38"},"PeriodicalIF":0.0,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82862960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The stars and the particle colliders prove that all things are made up of the same thing. This same thing has been called Konke. This was discussed in the paper “The Algorithm of Information and the Origin of Basic Particles.” This paper will show that this konke must get into relationships to become basic mass, particles. It will show how we categorize particles by mass and the behavior of that mass in the same class of particles. Because we know everything is in a relationship and all relationships take energy to maintain, resulting in a loss of freedom giving that relationship structure, there must be another variable that provides the energy for konke to get into a variable. This other variable is called V2, or variable 2. This V2 would be considered the original force as it allows konke to get into relationships; it thus gives other forces the ability to exist. Theoretically, this V2 behaves in many ways to what has been termed gravity. A collider is proof enough for konke given the first law of thermodynamics; energy can neither be created nor destroyed.
{"title":"Konke, Gravity, Particle Relationships","authors":"Bhekuzulu Khumalo","doi":"10.24297/jap.v18i.8794","DOIUrl":"https://doi.org/10.24297/jap.v18i.8794","url":null,"abstract":"The stars and the particle colliders prove that all things are made up of the same thing. This same thing has been called Konke. This was discussed in the paper “The Algorithm of Information and the Origin of Basic Particles.” This paper will show that this konke must get into relationships to become basic mass, particles. It will show how we categorize particles by mass and the behavior of that mass in the same class of particles. Because we know everything is in a relationship and all relationships take energy to maintain, resulting in a loss of freedom giving that relationship structure, there must be another variable that provides the energy for konke to get into a variable. This other variable is called V2, or variable 2. This V2 would be considered the original force as it allows konke to get into relationships; it thus gives other forces the ability to exist. Theoretically, this V2 behaves in many ways to what has been termed gravity. A collider is proof enough for konke given the first law of thermodynamics; energy can neither be created nor destroyed.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"13 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2020-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86081764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this article is to review the basic principles governing the evolution of the composition of the welding joint. The susceptibility to cracking of welded structures is a function of the microstructure, the environment, and the stresses applied; it is essential to understand the basic principles of the composition and evolution of the microstructure during welding. This article will focus primarily on fusion welding.
{"title":"Composantes de joint de soudage par fusion","authors":"A. Salah, M. Kaddami","doi":"10.24297/jap.v18i.8780","DOIUrl":"https://doi.org/10.24297/jap.v18i.8780","url":null,"abstract":"The purpose of this article is to review the basic principles governing the evolution of the composition of the welding joint. The susceptibility to cracking of welded structures is a function of the microstructure, the environment, and the stresses applied; it is essential to understand the basic principles of the composition and evolution of the microstructure during welding. This article will focus primarily on fusion welding.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"105 1","pages":"9-14"},"PeriodicalIF":0.0,"publicationDate":"2020-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85888040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. A. Mohamed, M. Y. El-Bakry, D. M. Habashy, E. H. Aamer
In this research, the artificial neural network (ANN) and resilient back propagation (R-prop) training algorithm are utilized to model the photovoltaic properties of Nickel–phthalocyanine (NiPc/p-Si) heterojunction. The experimental data are extracted from experimental studies. Experimental data are utilized as inputs in the ANN model. Training of different structures of the ANN is processed to approach the minimum value of error. Eight artificial neural networks are trained to get a better mean square error (MSE) and best execution for the networks. The ANN performances are also investigated and their values are very small (MSE < 10-3). The simulation results of the current-voltage characteristics of NiPc films are produced and provided excellent matching with the corresponding experimental data. Utilization of ANN model for predictions is also processed and gives accurate results. The equation which describes the relation between the inputs and outputs is obtained. The high accuracy of the ANN model has appeared in the major guessing power and the ability of generalization depending on the obtained equations.
{"title":"Mathematical Modeling of Photovoltaic Properties of Nipc/P-Si (Organic/Inorganic) Heterojunction by Using Artificial Neural Networks Model","authors":"R. A. Mohamed, M. Y. El-Bakry, D. M. Habashy, E. H. Aamer","doi":"10.24297/jap.v17i.8718","DOIUrl":"https://doi.org/10.24297/jap.v17i.8718","url":null,"abstract":"In this research, the artificial neural network (ANN) and resilient back propagation (R-prop) training algorithm are utilized to model the photovoltaic properties of Nickel–phthalocyanine (NiPc/p-Si) heterojunction. The experimental data are extracted from experimental studies. Experimental data are utilized as inputs in the ANN model. Training of different structures of the ANN is processed to approach the minimum value of error. Eight artificial neural networks are trained to get a better mean square error (MSE) and best execution for the networks. The ANN performances are also investigated and their values are very small (MSE < 10-3). The simulation results of the current-voltage characteristics of NiPc films are produced and provided excellent matching with the corresponding experimental data. Utilization of ANN model for predictions is also processed and gives accurate results. The equation which describes the relation between the inputs and outputs is obtained. The high accuracy of the ANN model has appeared in the major guessing power and the ability of generalization depending on the obtained equations.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84259796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Sobolewski, M. Sobolewski, Marek Juliusz Sobolewski, Joanna Paulina Sobolewska, N. Sobolewska
The article, based on mathematical model of the space and particles revealed in "Theory of Space" (Sobolewski D. S., Theory of Space, 2016) (Sobolewski D. S., Theory of Space, 2017) and the description of the propagation of photons stated in publication entitled “Geometry of the Dark Matter and Preliminary Analysis of Alpha and Beta Photons’ Properties Based on Theory of Space” (Sobolewski, Sobolewski i Sobolewski, 2017), describes transverse waves propagating in space, including gravitational, fluctuating and matter waves. In particular, it focuses on waves of matter in which orientation of the spatial channels, connecting four-dimensional boundary hypersurfaces and , had been stabilised. For this type of the wave of matter the minimum energy value for deformation of boundary hypersurfaces of the matter waves has been appointed, which is smaller by several orders of magnitude than energy needed to change the orientation of vertical disturbances of space which connect four-dimensional boundary hypersurfaces and, The obtained results were used to introduce a new classification of rocket engines and to provide examples of their implementation. Furthermore, the article demonstrates first attempts to construct a rocket engine of the new type, including description of the principle of operation of the engine, which is subject of patent application entitled "HTS Photonic Rocket Engine" (Poland Patent nr P.421517, 2017), as well as presents an example of spacecraft shell implementation, which enables stabilization of orientation of its spatial channels. The Article thus reveals new perspectives for interplanetary travel through significant increase in spacecraft velocities, while simultaneously reducing the energy required to achieve them. In addition, the article describes interaction of photons with the boundary hypersurface , while determining the change in photon frequency depending on its curvature .
本文基于《空间理论》(Sobolewski D. S.，《空间理论》，2016)(Sobolewski D. S.，《空间理论》，2017)中揭示的空间和粒子的数学模型，以及题为《暗物质的几何和基于空间理论的α和β光子性质的初步分析》(Sobolewski, Sobolewski i Sobolewski, 2017)的出版物中对光子传播的描述，描述了在空间中传播的横向波，包括引力、波动和物质波。特别是，它关注的是连接四维边界超表面和的空间通道方向已经稳定的物质波。对于这种类型的物质波，确定了物质波边界超表面变形的最小能量值，它比改变连接四维边界超表面的空间垂直扰动的方向所需的能量小几个数量级，并利用所得结果介绍了一种新的火箭发动机分类，并提供了其实现的实例。此外，本文还展示了构建新型火箭发动机的首次尝试，包括描述了发动机的工作原理，这是专利申请的主题，名为“HTS光子火箭发动机”(波兰专利号P.421517, 2017)，并提供了一个航天器外壳实现的例子，该外壳能够稳定其空间通道的方向。因此，这篇文章揭示了星际旅行的新视角，通过显著增加航天器速度，同时减少实现它们所需的能量。此外，本文描述了光子与边界超表面的相互作用，同时确定了光子频率随其曲率的变化。
{"title":"New Generations of Rocket Engines","authors":"D. Sobolewski, M. Sobolewski, Marek Juliusz Sobolewski, Joanna Paulina Sobolewska, N. Sobolewska","doi":"10.24297/jap.v17i.8747","DOIUrl":"https://doi.org/10.24297/jap.v17i.8747","url":null,"abstract":"The article, based on mathematical model of the space and particles revealed in \"Theory of Space\" (Sobolewski D. S., Theory of Space, 2016) (Sobolewski D. S., Theory of Space, 2017) and the description of the propagation of photons stated in publication entitled “Geometry of the Dark Matter and Preliminary Analysis of Alpha and Beta Photons’ Properties Based on Theory of Space” (Sobolewski, Sobolewski i Sobolewski, 2017), describes transverse waves propagating in space, including gravitational, fluctuating and matter waves. In particular, it focuses on waves of matter in which orientation of the spatial channels, connecting four-dimensional boundary hypersurfaces and , had been stabilised. For this type of the wave of matter the minimum energy value for deformation of boundary hypersurfaces of the matter waves has been appointed, which is smaller by several orders of magnitude than energy needed to change the orientation of vertical disturbances of space which connect four-dimensional boundary hypersurfaces and, The obtained results were used to introduce a new classification of rocket engines and to provide examples of their implementation. Furthermore, the article demonstrates first attempts to construct a rocket engine of the new type, including description of the principle of operation of the engine, which is subject of patent application entitled \"HTS Photonic Rocket Engine\" (Poland Patent nr P.421517, 2017), as well as presents an example of spacecraft shell implementation, which enables stabilization of orientation of its spatial channels. The Article thus reveals new perspectives for interplanetary travel through significant increase in spacecraft velocities, while simultaneously reducing the energy required to achieve them. In addition, the article describes interaction of photons with the boundary hypersurface , while determining the change in photon frequency depending on its curvature .","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80084423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This essay is another journey in the magnetic nature of fundamental movement with emphasis on how and why magnets are attracted and repelled from one another. And the relation of how movement for its mode and direction comes to so many different outcomes. And a rehearsal in how and by what we come to interpret movement into all that exists for us.
{"title":"Power by Rotation","authors":"L. V. Zanten","doi":"10.24297/jap.v17i.8736","DOIUrl":"https://doi.org/10.24297/jap.v17i.8736","url":null,"abstract":"This essay is another journey in the magnetic nature of fundamental movement with emphasis on how and why magnets are attracted and repelled from one another. And the relation of how movement for its mode and direction comes to so many different outcomes. And a rehearsal in how and by what we come to interpret movement into all that exists for us.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"18 1","pages":"295-305"},"PeriodicalIF":0.0,"publicationDate":"2020-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81758327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this brief communication, we summarize an original and new approach of the Universe, which considers that the Universe could be a finite, elastic and massive solid that would move and deform in an infinite absolute vacuum. In this a priori strange concept, it is supposed that the Universe is a lattice of simple cubic crystalline structure, whose basic cells have a mass of inertia that satisfies Newtonian dynamics in absolute space, and whose elasticity is controlled by the existence of an internal energy of deformation. One also supposes that this lattice is likely to contain topological singularities, i.e. structural defects such as dislocations, disclinations and dispirations, which would be the constituent elements of Ordinary Matter.
{"title":"In search of a theory of everything:","authors":"G. Gremaud","doi":"10.24297/jap.v17i.8726","DOIUrl":"https://doi.org/10.24297/jap.v17i.8726","url":null,"abstract":"In this brief communication, we summarize an original and new approach of the Universe, which considers that the Universe could be a finite, elastic and massive solid that would move and deform in an infinite absolute vacuum. In this a priori strange concept, it is supposed that the Universe is a lattice of simple cubic crystalline structure, whose basic cells have a mass of inertia that satisfies Newtonian dynamics in absolute space, and whose elasticity is controlled by the existence of an internal energy of deformation. One also supposes that this lattice is likely to contain topological singularities, i.e. structural defects such as dislocations, disclinations and dispirations, which would be the constituent elements of Ordinary Matter.","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"1 1","pages":"282-285"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78925911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the frame of kinetic theory we investigated the effects of suprathermal particles and dust charge fluctuations due to the inelastic collision between the dust grains and plasma particles by calculating the longitudinal dielectric permittivity in an unmagnetized dusty plasma on the wave modes propagating in a complex plasma. The ion and electron distribution were assumed to be Maxwell and Kapa distribution in the systems. It was shown that the wave frequency can be analyzed for various values of the spectral index K and the dust charge fluctuations. The landau damping rate and Propagation rate in dust charge fluctuation presence increase
{"title":"The Suprathermal Particles and Charge Fluctuation Effects on Waves in Complex Plasma","authors":"S. Mousavi","doi":"10.24297/jap.v17i.8708","DOIUrl":"https://doi.org/10.24297/jap.v17i.8708","url":null,"abstract":"In the frame of kinetic theory we investigated the effects of suprathermal particles and dust charge fluctuations due to the inelastic collision between the dust grains and plasma particles by calculating the longitudinal dielectric permittivity in an unmagnetized dusty plasma on the wave modes propagating in a complex plasma. The ion and electron distribution were assumed to be Maxwell and Kapa distribution in the systems. It was shown that the wave frequency can be analyzed for various values of the spectral index K and the dust charge fluctuations. The landau damping rate and Propagation rate in dust charge fluctuation presence increase","PeriodicalId":15024,"journal":{"name":"Journal of Advances in Physics","volume":"197 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79957870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：