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Progress of Theoretical Physics最新文献

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Application of Boltzmann’s Kinetic Equation to Research of Approach to Equilibrium Thermal Radiation of Rarefied Gas 玻尔兹曼动力学方程在稀薄气体平衡热辐射研究中的应用
Progress of Theoretical Physics Pub Date : 2020-03-08 DOI: 10.22606/tp.2020.51002
A. Volobuev
{"title":"Application of Boltzmann’s Kinetic Equation to Research of Approach to Equilibrium Thermal Radiation of Rarefied Gas","authors":"A. Volobuev","doi":"10.22606/tp.2020.51002","DOIUrl":"https://doi.org/10.22606/tp.2020.51002","url":null,"abstract":"","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74172446","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
Infrared Spectroscopic Detection of Biosignatures at Lake Tírez, Spain: Implications for Mars. 西班牙蒂雷兹湖生物特征的红外光谱探测：对火星的影响
IF 3.5
Progress of Theoretical Physics Pub Date : 2020-01-01 Epub Date: 2019-10-08 DOI: 10.1089/ast.2019.2106
Louisa J Preston, Rebeca Barcenilla, Lewis R Dartnell, Ezgi Kucukkilic-Stephens, Karen Olsson-Francis
{"title":"Infrared Spectroscopic Detection of Biosignatures at Lake Tírez, Spain: Implications for Mars.","authors":"Louisa J Preston, Rebeca Barcenilla, Lewis R Dartnell, Ezgi Kucukkilic-Stephens, Karen Olsson-Francis","doi":"10.1089/ast.2019.2106","DOIUrl":"10.1089/ast.2019.2106","url":null,"abstract":"<p><p>The detection of potential biosignatures with mineral matrices is part of a multifaceted approach in the search for life on other planetary bodies. The 2020 ExoMars Rosalind Franklin rover includes within its payload three IR spectrometers in the form of ISEM (Infrared Spectrometer for ExoMars), MicrOmega, and Ma-MISS (Mars Multispectral Imager for Subsurface Studies). The use of this technique in the detection and characterization of biosignatures is of great value. Organic materials are often co-deposited in terrestrial evaporites and as such have been proposed as relevant analogs in the search for life on Mars. This study focuses on Ca-sulfates collected from the hypersaline Tírez Lake in Spain. Mid infrared and visible near infrared analysis of soils, salt crusts, and crystals with green and red layering indicative of microbial colonization of the samples was acquired from across the lake and identified the main mineral to be gypsum with inputs of carbonate and silica. Organic functional groups that could be attributed to amides and carboxylic acids were identified as well as chlorophyll; however, due to the strong mineralogical absorptions observed, these were hard to unambiguously discern. Taxonomical assignment demonstrated that the archaeal community within the samples was dominated by the halophilic extremophile Halobacteriaceae while the bacterial community was dominated by the class Nocardiaceae. The results of this research highlight that sulfates on Mars are a mixed blessing, acting as an effective host for organic matter preservation but also a material that masks the presence of organic functional groups when analyzed with spectroscopic tools similar to those due to fly on the 2020 ExoMars rover. A suite of complementary analytical techniques therefore should be used to support the spectral identification of any candidate extraterrestrial biosignatures.</p>","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"24 1","pages":"15-25"},"PeriodicalIF":3.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6987737/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86131421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On Schwarzschild anti De Sitter and Reissner-Nördstrom Wormholes 关于史瓦西反德西特和Reissner-Nördstrom虫洞
Progress of Theoretical Physics Pub Date : 2019-11-14 DOI: 10.22606/tp.2019.44001
O. Brauer, M. Socolovsky
{"title":"On Schwarzschild anti De Sitter and Reissner-Nördstrom Wormholes","authors":"O. Brauer, M. Socolovsky","doi":"10.22606/tp.2019.44001","DOIUrl":"https://doi.org/10.22606/tp.2019.44001","url":null,"abstract":"We discuss the wormholes associated with the four-dimensional Schwarzschild (S4), Schwarzschild anti De Sitter (SaDS4), and Reissner-Nordstrom (RN4) black holes, in Schwarzschild, isotropic and Kruskal-Szekeres cordinates. The first two coordinate systems are valid outside the horizons, while the third one is used for the interiors. In Schwarzschild coordinates, embedding for SaDS4 exists only for a finite interval of the radial coordinate r, and similar restrictions exist for RN4. The use of the K-S coordinates allows us to give an explicit proof of the pinching-off of the bridges, making them non-traversable. The case of the extreme Reissner-Nordstrom (ERN4) is also discussed.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74236664","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
Nonthermal Distribution of Electro-negative Light-ions in Heavy-ion-acoustic Solitary and Shock Structures 电负光离子在重离子声孤立和激波结构中的非热分布
Progress of Theoretical Physics Pub Date : 2019-09-01 DOI: 10.22606/TP.2019.43002
M. M. Haider, I. Sultana, S. Khatun, J. Nasrin, N. Tasnim, O. Rahman, S. Akter
{"title":"Nonthermal Distribution of Electro-negative Light-ions in Heavy-ion-acoustic Solitary and Shock Structures","authors":"M. M. Haider, I. Sultana, S. Khatun, J. Nasrin, N. Tasnim, O. Rahman, S. Akter","doi":"10.22606/TP.2019.43002","DOIUrl":"https://doi.org/10.22606/TP.2019.43002","url":null,"abstract":"An attempt has been taken to study the nonlinear propagation of electro-positive heavy ion-acoustic (EPHIA) solitary and shock waves in multi-component plasmas containing mobile electro-positive heavy ions (EPHIs), nonthermal distributed electro-negative light ions (ENLIs) and Maxwellian electrons. The effects of temperature, mobile EPHIs, ENLIs and its nonthermality on solitary and shock waves are investigated in present work. To do so, we have derived the standard Korteweg-de Vries (K-dV) and Burger equations and their solutions. We have studied the effects of the parametric regimes, which affect the solitary and shock waves, numerically as well as graphically.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73006273","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
Equation Calculating Internal Energy Change Derived from the Clausius Inequality 由克劳修斯不等式推导出的计算内能变化的方程
Progress of Theoretical Physics Pub Date : 2019-09-01 DOI: 10.22606/TP.2019.43001
C. Jin
{"title":"Equation Calculating Internal Energy Change Derived from the Clausius Inequality","authors":"C. Jin","doi":"10.22606/TP.2019.43001","DOIUrl":"https://doi.org/10.22606/TP.2019.43001","url":null,"abstract":"","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89637458","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
The Origin of Gravitation and Electromagnetism 引力和电磁学的起源
Progress of Theoretical Physics Pub Date : 2019-06-01 DOI: 10.22606/TP.2019.42004
Zhongcheng Liang, Nanjing China Telecommunications
{"title":"The Origin of Gravitation and Electromagnetism","authors":"Zhongcheng Liang, Nanjing China Telecommunications","doi":"10.22606/TP.2019.42004","DOIUrl":"https://doi.org/10.22606/TP.2019.42004","url":null,"abstract":"Assuming that protons and electrons are three-dimensional body particles that have only mass and volume, the volume repulsion can ensure the finiteness of particle density. A scalar potential and a vector potential are constructed respectively with the mass density and the momentum density. A set of particle field equations is derived from the scalar and vector potentials with the help of vector calculus. The equation set is general field equations in three-dimensional flat space, instead of that in four-dimensional curved spacetime. It is shown that the particle field includes gradient field, divergence field and curl field. The gradient field predicts both attraction and repulsion between particles, the divergence field represents the undulation of particles, and the curl field describes the vortex motion of the particles. It is proven that gravitation and electromagnetism both originate from the interaction of body particles. The undulation of pure electronic system represents both gravitational waves and electromagnetic waves. If graviton and photon are regarded as body particles identical to electron, the electrons are the dark matter in the background of the universe.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83012451","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 Time-Like and Space-Like Components of Majorana Field 论马约拉纳场的类时类空分量
Progress of Theoretical Physics Pub Date : 2019-06-01 DOI: 10.22606/TP.2019.42002
L. Nanni
{"title":"On the Time-Like and Space-Like Components of Majorana Field","authors":"L. Nanni","doi":"10.22606/TP.2019.42002","DOIUrl":"https://doi.org/10.22606/TP.2019.42002","url":null,"abstract":"","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73273374","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
Information Entropy of Zero-Point Oscillations of a Harmonic Oscillator 谐振子零点振荡的信息熵
Progress of Theoretical Physics Pub Date : 2019-06-01 DOI: 10.22606/TP.2019.42005
A. Stepanov, M. A. Stepanov
{"title":"Information Entropy of Zero-Point Oscillations of a Harmonic Oscillator","authors":"A. Stepanov, M. A. Stepanov","doi":"10.22606/TP.2019.42005","DOIUrl":"https://doi.org/10.22606/TP.2019.42005","url":null,"abstract":"Information entropy of zero-point oscillations of a harmonic oscillator is calculated. Its value is expressed in both nats and energy units. It is shown the entropy’s physical meaning is determined by the wave particle duality of electromagnetic radiation. The energy resulting from information entropy of initial sub conformation of a myoglobin molecule is derived.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"1973 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90245788","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
Sub-matter Higgs Condensate in Discrete Bounded Fields 离散有界场中的子物质希格斯凝聚
Progress of Theoretical Physics Pub Date : 2019-06-01 DOI: 10.22606/TP.2019.42006
P. A. Jackson, J. Minkowski
{"title":"Sub-matter Higgs Condensate in Discrete Bounded Fields","authors":"P. A. Jackson, J. Minkowski","doi":"10.22606/TP.2019.42006","DOIUrl":"https://doi.org/10.22606/TP.2019.42006","url":null,"abstract":"","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87340833","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
Dust-ion-acoustic Solitary Waves and Their Instability in a Magnetized Adiabatic Dusty Electronegative Plasma 磁化绝热尘埃电负性等离子体中的尘埃离子声孤波及其不稳定性
Progress of Theoretical Physics Pub Date : 2019-06-01 DOI: 10.22606/TP.2019.42001
O. Rahman, M. M. Haider
{"title":"Dust-ion-acoustic Solitary Waves and Their Instability in a Magnetized Adiabatic Dusty Electronegative Plasma","authors":"O. Rahman, M. M. Haider","doi":"10.22606/TP.2019.42001","DOIUrl":"https://doi.org/10.22606/TP.2019.42001","url":null,"abstract":"The basic features of a nonlinear obliquely propagating dust-ion-acoustic (DIA) solitary waves (SWs) in a magnetized adiabatic dusty electronegative plasma (MADENP) containing Maxwellian electrons, vortex-like (trapped) negative ions, positively charged stationary dust, and adiabatic mobile inertial positive ions have been theoretically investigated. The well known modified Zakharov Kuznetsov (mZK) is derived by using the reductive perturbation technique. The dependence of solitary wave structures on positive ion adiabaticity, external magnetic field (obliqueness), trapped negative ions, and positively charged stationary dust are studied explicitly. The three-dimensional instability of this DIASWs is also analyzed using small-k perturbation expansion technique. It is found that the nature of DIASW, the instability criterion and the growth rate of unstable perturbations are significantly modified by the external magnetic field, the propagation directions of both the nonlinear waves and their perturbation modes.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78815279","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: 7
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