Physics Research International最新文献

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Common Pedagogical Issues with De Broglie Waves: Moving Double Slits, Composite Mass, and Clock Synchronization 德布罗意波的常见教学问题:移动双缝、复合质量和时钟同步
Physics Research International Pub Date : 2015-12-01 DOI: 10.1155/2015/895134
R. Shuler
{"title":"Common Pedagogical Issues with De Broglie Waves: Moving Double Slits, Composite Mass, and Clock Synchronization","authors":"R. Shuler","doi":"10.1155/2015/895134","DOIUrl":"https://doi.org/10.1155/2015/895134","url":null,"abstract":"This paper addresses gaps identified in pedagogical studies of how misunderstanding of De Broglie waves affects later coursework and presents a heuristic for understanding the De Broglie frequency of composite. De Broglie’s little known derivation is reviewed with a new illustration based on his description. Simple techniques for reference frame independent analysis of a moving double slit electron interference experiment are not previously found in any literature and cement the concepts. Points of similarity and difference between De Broglie and Schrodinger waves are explained. The necessity of momentum, energy, and wavelength changes in the electrons in order for them to be vertically displaced in their own reference frame is shown to be required to make the double slit analysis work. A relativistic kinematic analysis of De Broglie frequency is provided showing how the higher De Broglie frequency of moving particles is consistent with Special Relativity and time dilation and that it demonstrates a natural system which obeys Einstein’s clock synchronization convention of simultaneity and no other. Students will be better prepared to identify practical approaches to solving problems and to think about fundamental questions.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"345 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82732838","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}
引用次数: 4
A Comparative Study of Spin Coated Transparent Conducting Thin Films of Gallium and Aluminum Doped ZnO Nanoparticles 镓和铝掺杂ZnO纳米粒子自旋包覆透明导电薄膜的比较研究
Physics Research International Pub Date : 2015-11-16 DOI: 10.1155/2015/238123
A. Al-Kahlout
{"title":"A Comparative Study of Spin Coated Transparent Conducting Thin Films of Gallium and Aluminum Doped ZnO Nanoparticles","authors":"A. Al-Kahlout","doi":"10.1155/2015/238123","DOIUrl":"https://doi.org/10.1155/2015/238123","url":null,"abstract":"Transparent conducting Ga:ZnO (GZO) and Al:ZnO (AZO) layers have been deposited by spin coating on glass substrates using crystalline nanoparticles redispersed in 1-propanol. The coatings have been sintered in air at 600°C for 15 min and then postannealed in a reducing atmosphere at 400°C for 90 min. The effect of Ga and Al doping on the structural, morphological, optical, and electrical properties of the obtained thin films was investigated. Both films were found to be crystalline with a hexagonal structure. A single step spin coated layer 52–56 nm thick is obtained. To increase the thickness and lower the obtained sheet resistance multilayers coatings have been used. The visible transmission of both layers is high (%). The influence of the sintering temperature and the optimum doping concentration was investigated. Five layers synthesized with doping ratio of 1 mol.% and sintered at 600°C and then submitted to reducing treatment in forming gas exhibited a minimum resistivity value of 7.4 × 10−2 Ω·cm for GZO layer and 1.45 Ω·cm for AZO coating.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"2 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2015-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87557962","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}
引用次数: 12
Magnetoplasmon Excitations at Graphene Vortex Hall Fluid Edge 石墨烯涡旋霍尔流体边缘的磁离激元激发
Physics Research International Pub Date : 2015-10-23 DOI: 10.1155/2016/8971759
M. Rabiu, S. Mensah, I. Y. Seini, S. S. Abukari
{"title":"Magnetoplasmon Excitations at Graphene Vortex Hall Fluid Edge","authors":"M. Rabiu, S. Mensah, I. Y. Seini, S. S. Abukari","doi":"10.1155/2016/8971759","DOIUrl":"https://doi.org/10.1155/2016/8971759","url":null,"abstract":"We investigate magnetoplasmon dynamics localized on the edges of graphene vortex Hall fluid. The vortex matter captures an anomalous term that causes vortex localization near fluid boundary and creates a double boundary layer, with being filling factor. The term also has qualitative effect on resonant excitations of edge magnetoplasmons. We found that, for sharp edges under experimental conditions, graphene edge magnetoplasmon (EMP) resonances have similar behavior as in recent experiments. Gradual distinctions arise for smooth edges in the presence of the anomalous term, where a weak EMP peak appears. The second peak becomes well noticed as the smoothness is increased. We identified the resonant mode as an Inter-EMP. It originates from the oscillations of charges in the inner boundary of the double layer. The present observation brings to light the direct cause of Inter-EMP which remained to be detected in graphene experiments.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"231 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88995692","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}
引用次数: 0
Remaining Problems in Interpretation of the Cosmic Microwave Background 宇宙微波背景解释中的遗留问题
Physics Research International Pub Date : 2015-06-09 DOI: 10.1155/2015/503106
H. Fahr, Michael Sokaliwska
{"title":"Remaining Problems in Interpretation of the Cosmic Microwave Background","authors":"H. Fahr, Michael Sokaliwska","doi":"10.1155/2015/503106","DOIUrl":"https://doi.org/10.1155/2015/503106","url":null,"abstract":"By three independent hints it will be demonstrated that still at present there is a substantial lack of theoretical understanding of the CMB phenomenon. One point, as we show, is that at the phase of the recombination era one cannot assume complete thermodynamic equilibrium conditions but has to face both deviations in the velocity distributions of leptons and baryons from a Maxwell-Boltzmann distribution and automatically correlated deviations of photons from a Planck law. Another point is that at the conventional understanding of the CMB evolution in an expanding universe one has to face growing CMB temperatures with growing look-back times. We show, however, here that the expected CMB temperature increases would be prohibitive to star formation in galaxies at redshifts higher than where nevertheless the cosmologically most relevant supernovae have been observed. The third point in our present study has to do with the assumption of a constant vacuum energy density which is required by the present CDM-cosmology. Our studies here rather lead to the conclusion that cosmic vacuum energy density scales with the inverse square of the cosmic expansion scale . Thus we come to the conclusion that with the interpretation of the present-day high quality CMB data still needs to be considered carefully.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"35 1","pages":"503106"},"PeriodicalIF":0.0,"publicationDate":"2015-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73763282","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}
引用次数: 12
Structure and Microhardness of Titanium-Based Coatings Formed by Multichamber Detonation Sprayer 多室爆轰喷涂钛基涂层的组织和显微硬度
Physics Research International Pub Date : 2015-03-23 DOI: 10.1155/2015/532825
M. Kovaleva, Y. Tyurin, N. Vasilik, O. Kolisnichenko, M. Prozorova, M. Arseenko, V. Sirota, I. Pavlenko
{"title":"Structure and Microhardness of Titanium-Based Coatings Formed by Multichamber Detonation Sprayer","authors":"M. Kovaleva, Y. Tyurin, N. Vasilik, O. Kolisnichenko, M. Prozorova, M. Arseenko, V. Sirota, I. Pavlenko","doi":"10.1155/2015/532825","DOIUrl":"https://doi.org/10.1155/2015/532825","url":null,"abstract":"A series of titanium-based coatings (50–550 μm thick) on an aluminium substrate was deposited via multichamber detonation sprayer with different barrel lengths (300, 400, and 500, all in mm). The titanium-based coatings obtained in these three experiments were examined by optical microscopy, scanning electron microscopy, and X-ray phase analysis. The hardness tests were carried out by the Vickers method with a test load of 50 g. The multichamber detonation sprayer with a barrel length of 500 mm produced the dense layers of coating with hardness of  HV0.05 and porosity of 0.24%, the best result in the experiments.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"1 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82816179","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}
引用次数: 2
Modified Theories of Gravitation behind the Spacetime Deformation 时空变形背后的修正引力理论
Physics Research International Pub Date : 2015-03-02 DOI: 10.1155/2015/152846
G. Ter-Kazarian
{"title":"Modified Theories of Gravitation behind the Spacetime Deformation","authors":"G. Ter-Kazarian","doi":"10.1155/2015/152846","DOIUrl":"https://doi.org/10.1155/2015/152846","url":null,"abstract":"In the framework of proposed theory of spacetime deformation/distortion, we have a way to deform the spacetime through a nontrivial choice of the distortion-complex, displaying different connections, which may reveal different post-Riemannian spacetime structures as corollary. We extend this theory to address, in particular, the gauge model of the most general metric-affine gravity carrying both nontrivial torsion and nonmetricity. This model is constructed in the framework of the first order Lagrangian expressed in terms of the gauge potentials and their first derivatives. The equations of the standard theory, which have no propagating modes for torsion, can be equivalently replaced in modified framework by the modified equations, which in the limit of reducing the affine group leads to the modified Einstein-Cartan theory with dynamical torsion and beyond. In testing the modified framework for various particular cases, we use the Lagrange multipliers for extinguishing nonmetricity and torsion.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"11 17 1","pages":"152846"},"PeriodicalIF":0.0,"publicationDate":"2015-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73397259","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}
引用次数: 6
Evaluated Excited-State Time-Independent Correlation Function and Eigenfunction of the Harmonics Oscillator Cosine Asymmetric Potential via Numerical Shooting Method 用数值射击法计算了谐振子余弦不对称势的激发态时间无关相关函数和本征函数
Physics Research International Pub Date : 2015-02-23 DOI: 10.1155/2015/609495
A. Hutem, P. Moonsri
{"title":"Evaluated Excited-State Time-Independent Correlation Function and Eigenfunction of the Harmonics Oscillator Cosine Asymmetric Potential via Numerical Shooting Method","authors":"A. Hutem, P. Moonsri","doi":"10.1155/2015/609495","DOIUrl":"https://doi.org/10.1155/2015/609495","url":null,"abstract":"We aimed to evaluate the ground-state and excite-state energy eigenvalue (En), wave function, and the time-independent correlation function of the atomic density fluctuation of a particle under the harmonics oscillator Cosine asymmetric potential (Saad et al. 2013). Instead of using the 6-point kernel of 4 Green’s function (Cherroret and Skipetrov, 2008), averaged over disorder, we use the numerical shooting method (NSM) to solve the Schrodinger equation of quantum mechanics system with Cosine asymmetric potential. Since our approach does not use complicated formulas, it requires much less computational effort when compared to the Green functions techniques (Cherroret and Skipetrov, 2008). We show that the idea of the program of evaluating time-independent correlation function of atomic density is underdamped motion for the Cosine asymmetric potential from the numerical shooting method of this problem. Comparison of the time-independent correlation function obtained from numerical shooting method by Boonchui and Hutem (2012) and correlation function experiment by Kasprzak et al. (2008). We show the intensity of atomic density fluctuation in harmonics oscillator Cosine asymmetric potential by numerical shooting method.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"17 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2015-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74294434","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}
引用次数: 2
Comparing the Ratchet Effects of Cold Atoms in Periodically Symmetric and Asymmetric Optical Potentials 周期对称和非对称光势中冷原子棘轮效应的比较
Physics Research International Pub Date : 2015-01-31 DOI: 10.1155/2015/706527
N. A. Arreyndip, Kenfack Anatole
{"title":"Comparing the Ratchet Effects of Cold Atoms in Periodically Symmetric and Asymmetric Optical Potentials","authors":"N. A. Arreyndip, Kenfack Anatole","doi":"10.1155/2015/706527","DOIUrl":"https://doi.org/10.1155/2015/706527","url":null,"abstract":"We consider a particle in a spatial symmetric/asymmetric potential driven by time periodic bichromatic AC fields of ratchet type. The associated time-dependent Schrodinger equation is conveniently tackled with the Floquet theory. We next proceed to investigate the ratchet effect induced by the driver, comparing the symmetric with the asymmetric cases. It turns out that the current in the asymmetric case is stronger than that of the symmetric one. Besides, we also investigate the case where the driver is a delta kicked acting on our spatial potential with more emphasis on its chaotic behaviour. Here we check that the current emerges as the phase space is mixed and that the system with asymmetric spatial potential becomes more chaotic than the symmetric one at low kicking strength.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"82 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2015-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74601702","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}
引用次数: 0
Liquid Mass Sensing Using Resonating Microplates under Harsh Drop and Spray Conditions 在恶劣滴淋条件下使用谐振微孔板进行液体质量传感
Physics Research International Pub Date : 2014-12-31 DOI: 10.1155/2014/320324
Said Mahajne, D. Guetta, Stella Lulinsky, S. Krylov, Y. Linzon
{"title":"Liquid Mass Sensing Using Resonating Microplates under Harsh Drop and Spray Conditions","authors":"Said Mahajne, D. Guetta, Stella Lulinsky, S. Krylov, Y. Linzon","doi":"10.1155/2014/320324","DOIUrl":"https://doi.org/10.1155/2014/320324","url":null,"abstract":"We have performed in situ real time mass sensing of deposited liquid volatile droplets and sprays using plate-like microstructures, with robust and reusable performance attained over harsh conditions and multiple cycles of operation. A home-built electrooptical sensing system in ambient conditions has been used. The bimorph effect on the resonant frequency of altered mass loading, elasticity, and strain had been carefully compared, and the latter were found to be negligible in the presence of nonviscous liquids deposited on top of our microplate devices. In resonant mode, the loaded mass has been estimated from measured resonant frequency shifts and interpreted from a simple, uniformly deposited film model. A minimum submicrogram detectable mass was estimated, suggesting the system’s potential for robust, fast, and reusable sensing capabilities, in the presence of volatile liquids under harsh operation conditions.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"88 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79975835","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}
引用次数: 15
Exact Traveling Wave Solutions for Wick-Type Stochastic Schamel KdV Equation wicktype随机Schamel KdV方程的精确行波解
Physics Research International Pub Date : 2014-12-15 DOI: 10.1155/2014/937345
H. A. Ghany, andM. Zakarya
{"title":"Exact Traveling Wave Solutions for Wick-Type Stochastic Schamel KdV Equation","authors":"H. A. Ghany, andM. Zakarya","doi":"10.1155/2014/937345","DOIUrl":"https://doi.org/10.1155/2014/937345","url":null,"abstract":"F-expansion method is proposed to seek exact solutions of nonlinear partial differential equations. By means of Hermite transform, inverse Hermite transform, and white noise analysis, the variable coefficients and Wick-type stochastic Schamel KdV equations are completely described. Abundant exact traveling wave solutions for variable coefficients Schamel KdV equations are given. These solutions include exact stochastic Jacobi elliptic functions, trigonometric functions, and hyperbolic functions solutions.","PeriodicalId":20143,"journal":{"name":"Physics Research International","volume":"20 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90894972","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}
引用次数: 10
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