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Reissner-Nordstrom Solution for Non-Rotating Elliptical Charged Celestial Objects 非旋转椭圆带电天体的Reissner-Nordstrom解
Advanced Studies in Theoretical Physics Pub Date : 2013-09-01 DOI: 10.12988/ASTP.2013.311138
Bijan Nikouravan, K. Ibrahim, W. Abdullah, Indriani Sukma
{"title":"Reissner-Nordstrom Solution for Non-Rotating Elliptical Charged Celestial Objects","authors":"Bijan Nikouravan, K. Ibrahim, W. Abdullah, Indriani Sukma","doi":"10.12988/ASTP.2013.311138","DOIUrl":"https://doi.org/10.12988/ASTP.2013.311138","url":null,"abstract":"We derived Reissner-Nordstrom solution for non-rotating charged celestial objects with Elliptical in shaped, such as stars and/or elliptical galaxies. This metric is capable to describing the behavior of gravitational field outside any charged ellipsoidal celestial objects like stars, galaxies or Quasi-stellar object.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116121387","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
Twist Deformation of l-Conformal Galilei Hopf Algebra l-保形Galilei Hopf代数的扭转变形
Advanced Studies in Theoretical Physics Pub Date : 2013-07-03 DOI: 10.12988/ASTP.2013.13048
M. Daszkiewicz
{"title":"Twist Deformation of l-Conformal Galilei Hopf Algebra","authors":"M. Daszkiewicz","doi":"10.12988/ASTP.2013.13048","DOIUrl":"https://doi.org/10.12988/ASTP.2013.13048","url":null,"abstract":"The six Abelian twist-deformations of l-conformal Galilei Hopf algebra are considered. The corresponding twisted space-times are derived as well.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116885746","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: 3
Shear thinning near the rough boundary in a viscoelastic flow 粘弹性流动中粗糙边界附近的剪切变薄
Advanced Studies in Theoretical Physics Pub Date : 2012-02-29 DOI: 10.12988/astp.2016.6624
S. Hasan
{"title":"Shear thinning near the rough boundary in a viscoelastic flow","authors":"S. Hasan","doi":"10.12988/astp.2016.6624","DOIUrl":"https://doi.org/10.12988/astp.2016.6624","url":null,"abstract":"When polymer melts flow near a corrugated boundary, individual chains go through oscillatory shear due to the perturbed velocity field produced by corrugation. In order to obtain friction constant for this surface, we find total dissipation using the oscillatory strain rate of individual chains. For small slip velocities this friction constant approaches the constant obtained by macroscopic hydrodynamics (P. G. De Gennes, C. R. Acad. Sci. Paris Ser. B, 289:220, 1979). Large slip velocities mean smaller time period of shear oscillation, so less dissipation and we observe shear thinning. PACS: 47.57.Ng; 47.85.md; 61.25.H","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124324784","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
Properties of wave packets propagating on non-dispersive linear medium 波包在非色散线性介质上的传播特性
Advanced Studies in Theoretical Physics Pub Date : 1900-01-01 DOI: 10.12988/astp.2020.91497
Toru Shimizu, K. Nakayama
{"title":"Properties of wave packets propagating on non-dispersive linear medium","authors":"Toru Shimizu, K. Nakayama","doi":"10.12988/astp.2020.91497","DOIUrl":"https://doi.org/10.12988/astp.2020.91497","url":null,"abstract":"In this paper, properties of wave packets propagating on a nondispersive linear medium described by the “Nein-Gordon equation” or the wave equation for a cord under the non-gravitational field are studied. Especially, It is investigated in detail that two wave packets propagating to the opposite directions on a pendulum model medium are stable against a collision. Regarding a cord medium, it may not be difficult to induce a wave packet, but possible to do it by swinging a cord a little.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115133414","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
Non-conservative gravitational fields around spinning spherical objects (and the absence of gravitomagnetic fields) as revealed by the Kerr metric 克尔度规揭示的旋转球形物体周围的非保守引力场(以及重力磁场的缺失)
Advanced Studies in Theoretical Physics Pub Date : 1900-01-01 DOI: 10.12988/astp.2022.91894
A. Trupp
{"title":"Non-conservative gravitational fields around spinning spherical objects (and the absence of gravitomagnetic fields) as revealed by the Kerr metric","authors":"A. Trupp","doi":"10.12988/astp.2022.91894","DOIUrl":"https://doi.org/10.12988/astp.2022.91894","url":null,"abstract":"The Kerr metric in the equatorial plane of a spinning, spherical mass is scrutinized. It turns out that the gravitational field lines of a spinning, massive sphere are not strictly straight, but are, in the equatorial plane, curved because of a tangential component. This was mentioned by N.A. Sharp in 1979, although without any proof or reference. An equation for determining the tangential component of the gravitational field is provided. Thereby it is shown that a gravitational Lorentz force and hence a gravitomagnetic field do not exist, although this had been postulated by Heaviside and Thirring. Because of the tangential component, the gravitational field around a spinning spherical body is not conservative. Hence, there is an analogy to the electric field, which, too, can either be conservative (as is the case for the electrostatic field), or non-conservative (which is the case whenever the magnetic flux en-circled by a path in space is subject to change). An orbiter held on a circular trajectory in the equatorial plane and circling with the spin of the central mass thus experiences a steady onward force like a charged particle in a ring − shaped particle accelerator does. The gain in kinetic energy of an orbiter is at the expense of the rotational kinetic energy of the central, spinning mass. This is because the gravitational field lines of any orbiter, too, are curved, and thus exert a torque on the central, spinning mass.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115450602","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
Burning characteristics of coconut oil vapor-air mixtures at premixed combustion 椰子油蒸气-空气混合物在预混燃烧时的燃烧特性
Advanced Studies in Theoretical Physics Pub Date : 1900-01-01 DOI: 10.12988/ASTP.2013.3884
H. Saroso, I. Wardana, R. Soenoko, N. Hamidi
{"title":"Burning characteristics of coconut oil vapor-air mixtures at premixed combustion","authors":"H. Saroso, I. Wardana, R. Soenoko, N. Hamidi","doi":"10.12988/ASTP.2013.3884","DOIUrl":"https://doi.org/10.12988/ASTP.2013.3884","url":null,"abstract":"","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123078432","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
On the Partition Functions Induced by Iterated (k-Folded) Wreath Product Groups 迭代(k-折叠)圈积群诱导的配分函数
Advanced Studies in Theoretical Physics Pub Date : 1900-01-01 DOI: 10.12988/ASTP.2015.5989
Alejandro Chinea, Paseo Senda del Rey
{"title":"On the Partition Functions Induced by Iterated (k-Folded) Wreath Product Groups","authors":"Alejandro Chinea, Paseo Senda del Rey","doi":"10.12988/ASTP.2015.5989","DOIUrl":"https://doi.org/10.12988/ASTP.2015.5989","url":null,"abstract":"Group theory provides a systematic way of thinking about symmetry. Wreath products are group-theoretic constructions that have been used to model symmetries in a whole variety of research disciplines. The goal of this paper is to calculate the partition functions induced by these algebraic structures when organized iteratively under the symmetries imposed by the permutation and cyclic groups. The resulting hierarchical structures are modeled as Cayley-like trees from a statistical mechanics point of view, whereas the interactions between the nodes of those trees are dened by the actions induced by these groups. The emphasis is put on the analytic combinatorics treatment of the problem as a way to obtain closed expressions for the partition functions. Furthermore, the advantages of the singularity analysis and symbolic techniques of this mathematical theory are stressed as a way of extracting asymptotic information and setting up functional relations between partition functions.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116950002","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
Daehee Polynomials with q-Parameter 具有q参数的大熙多项式
Advanced Studies in Theoretical Physics Pub Date : 1900-01-01 DOI: 10.12988/ASTP.2014.4570
Dae San Kim, Taekyun Kim, H. Kwon, Jong-Jin Seo
{"title":"Daehee Polynomials with q-Parameter","authors":"Dae San Kim, Taekyun Kim, H. Kwon, Jong-Jin Seo","doi":"10.12988/ASTP.2014.4570","DOIUrl":"https://doi.org/10.12988/ASTP.2014.4570","url":null,"abstract":"In this paper, we consider Daehee polynomials with q-parameter and investigate some properties of those polynomials.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127076405","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: 20
Symmetric Identities of Generalized q-Bernoulli Polynomials of the Second Kind 第二类广义q-Bernoulli多项式的对称恒等式
Advanced Studies in Theoretical Physics Pub Date : 1900-01-01 DOI: 10.12988/ASTP.2014.415
Dae San Kim, Taekyun Kim, Jong-Jin Seo, Sang-Hun Lee
{"title":"Symmetric Identities of Generalized q-Bernoulli Polynomials of the Second Kind","authors":"Dae San Kim, Taekyun Kim, Jong-Jin Seo, Sang-Hun Lee","doi":"10.12988/ASTP.2014.415","DOIUrl":"https://doi.org/10.12988/ASTP.2014.415","url":null,"abstract":"In this paper, we give some new and interesting identities of symmetry for the q-Bernoulli polynomials of the second kind.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124935518","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: 1
On the q-deformed thermodynamics and q-deformed Fermi level in intrinsic semiconductor 本征半导体中q-变形热力学与q-变形费米能级
Advanced Studies in Theoretical Physics Pub Date : 1900-01-01 DOI: 10.12988/ASTP.2017.61138
W. Chung, Eun Ji Jang, Jae Yoon Kim
{"title":"On the q-deformed thermodynamics and q-deformed Fermi level in intrinsic semiconductor","authors":"W. Chung, Eun Ji Jang, Jae Yoon Kim","doi":"10.12988/ASTP.2017.61138","DOIUrl":"https://doi.org/10.12988/ASTP.2017.61138","url":null,"abstract":"In this paper the q-deformed thermodynamic laws are investigated and q-deformed Fermi level in intrinsic semiconductor is discussed.","PeriodicalId":127314,"journal":{"name":"Advanced Studies in Theoretical Physics","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125941518","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: 1
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