In the paper a review of results for recovering of the weak equivalence principle in a space with deformed commutation relations for operators of coordinates and momenta is presented. Different types of deformed algebras leading to a space quantization are considered among them noncommutative algebra of canonical type, algebra of Lie type, nonlinear deformed algebra with arbitrary function of deformation depending on momenta. A motion of a particle and a composite system in gravitational field is examined and the implementation of the weak equivalence principle is studied. The principle is preserved in quantized space if we consider parameters of deformed algebras to be dependent on mass. It is also shown that dependencies of parameters of deformed algebras on mass lead to preserving of the properties of the kinetic energy in quantized spaces and solving of the problem of significant effect of space quantization on the motion of macroscopic bodies (the problem is known as the soccer-ball problem).
{"title":"Deformed Heisenberg algebras of different types with preserved weak equivalence principle","authors":"Kh. P. Gnatenko, V. Tkachuk","doi":"10.30970/jps.27.1001","DOIUrl":"https://doi.org/10.30970/jps.27.1001","url":null,"abstract":"In the paper a review of results for recovering of the weak equivalence principle in a space with deformed commutation relations for operators of coordinates and momenta is presented. Different types of deformed algebras leading to a space quantization are considered among them noncommutative algebra of canonical type, algebra of Lie type, nonlinear deformed algebra with arbitrary function of deformation depending on momenta. A motion of a particle and a composite system in gravitational field is examined and the implementation of the weak equivalence principle is studied. The principle is preserved in quantized space if we consider parameters of deformed algebras to be dependent on mass. It is also shown that dependencies of parameters of deformed algebras on mass lead to preserving of the properties of the kinetic energy in quantized spaces and solving of the problem of significant effect of space quantization on the motion of macroscopic bodies (the problem is known as the soccer-ball problem).","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"12 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81378254","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}
B. Turko, V. Vasil'yev, V. Kapustianyk, O. Zakrevskyi, L. Hrytsak, A. Kostruba
{"title":"The effect of UV light irradiation on the gas-sensing properties of the quartz crystal microbalance sensor combined with ZnO film","authors":"B. Turko, V. Vasil'yev, V. Kapustianyk, O. Zakrevskyi, L. Hrytsak, A. Kostruba","doi":"10.30970/jps.27.3001","DOIUrl":"https://doi.org/10.30970/jps.27.3001","url":null,"abstract":"","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135702218","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}
C. Rudresha, C. Balaji, V. V. Shree, S. Maruthamanikandan
{"title":"Onset of electroconvection in a compactly packed dielectric liquid-permeable layer with a modulated electric field","authors":"C. Rudresha, C. Balaji, V. V. Shree, S. Maruthamanikandan","doi":"10.30970/jps.27.1401","DOIUrl":"https://doi.org/10.30970/jps.27.1401","url":null,"abstract":"","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"152 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86227311","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}
{"title":"The optimal interval for determining the growth rate of solar activity for the prediction of the 25th cycle","authors":"V. M. Efimenko, V. Lozitsky","doi":"10.30970/jps.27.3901","DOIUrl":"https://doi.org/10.30970/jps.27.3901","url":null,"abstract":"","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"220 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85183803","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 paper, the three-dimensional Casson (cid:29)ow of a ternary hybrid nano(cid:29)uid over a porous linearly stretching/shrinking surface in the presence of an external magnetic (cid:28)eld is considered. The surface deformation process is described by introducing two parameters of stretching/shrinking in the lateral directions. Using similarity transformations, the basic set of nonlinear partial di(cid:27)erential equations is converted into ordinary di(cid:27)erential equations. An exact analytical solution to this boundary value problem is obtained. The in(cid:29)uence of the Casson parameter, magnetic (cid:28)eld, porosity medium, and stretching/shrinking parameter, taking into account mass transpiration, on the velocity pro(cid:28)les and the skin friction coe(cid:30)cients is considered in detail. It has been established that the results obtained in some limited cases are in excellent agreement with the available data. Tables show the new results for the skin friction coe(cid:30)cients in the lateral directions ( x and y ) for di(cid:27)erent variants of surface deformation
{"title":"Exact solutions of the mhd three-dimensional casson flow of a ternary hybrid nanofluid over a porous stretching/shrinking surface with mass transpiration","authors":"M. Kopp, U. Mahabaleshwar, L. Pérez","doi":"10.30970/jps.27.2402","DOIUrl":"https://doi.org/10.30970/jps.27.2402","url":null,"abstract":"In this paper, the three-dimensional Casson (cid:29)ow of a ternary hybrid nano(cid:29)uid over a porous linearly stretching/shrinking surface in the presence of an external magnetic (cid:28)eld is considered. The surface deformation process is described by introducing two parameters of stretching/shrinking in the lateral directions. Using similarity transformations, the basic set of nonlinear partial di(cid:27)erential equations is converted into ordinary di(cid:27)erential equations. An exact analytical solution to this boundary value problem is obtained. The in(cid:29)uence of the Casson parameter, magnetic (cid:28)eld, porosity medium, and stretching/shrinking parameter, taking into account mass transpiration, on the velocity pro(cid:28)les and the skin friction coe(cid:30)cients is considered in detail. It has been established that the results obtained in some limited cases are in excellent agreement with the available data. Tables show the new results for the skin friction coe(cid:30)cients in the lateral directions ( x and y ) for di(cid:27)erent variants of surface deformation","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"15 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80458217","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}
{"title":"Chaotic dynamics of magnetic fields generated by thermomagnetic instability in a nonuniformly rotating electrically conductive fluid","authors":"M. Kopp, A. Tur, V. Yanovsky","doi":"10.30970/jps.27.2403","DOIUrl":"https://doi.org/10.30970/jps.27.2403","url":null,"abstract":"","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"30 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75451523","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}
{"title":"Latitudinal distribution of active regions during solar cycles 23--24","authors":"O. Baran, A. Prysiazhnyi","doi":"10.30970/jps.27.2901","DOIUrl":"https://doi.org/10.30970/jps.27.2901","url":null,"abstract":"","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"15 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82311118","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}
{"title":"Attenuation of velocity fields during non-equilibrium filtration in a half-space medium for harmonic action on it","authors":"I. I. Denysiuk, I. A. Skurativska, I. M. Hubar","doi":"10.30970/jps.27.3801","DOIUrl":"https://doi.org/10.30970/jps.27.3801","url":null,"abstract":"","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"123 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85673888","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}
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