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The Tension Cosmology, Largest Cosmic Structures and Explosions of Supernovae from SST
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作者 Sylwester Kornowski 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第3期1029-1044,共16页
Here, using the Scale-Symmetric Theory (SST) we explain the cosmological tension and the origin of the largest cosmic structures. We show that a change in value of strong coupling constant for cold baryonic matter lea... Here, using the Scale-Symmetric Theory (SST) we explain the cosmological tension and the origin of the largest cosmic structures. We show that a change in value of strong coupling constant for cold baryonic matter leads to the disagreement in the galaxy clustering amplitude, quantified by the parameter S8. Within the same model we described the Hubble tension. We described also the mechanism that transforms the gravitational collapse into an explosion—it concerns the dynamics of virtual fields that lead to dark energy. Our calculations concern the Type Ia supernovae and the core-collapse supernovae. We calculated the quantized masses of the progenitors of supernovae, emitted total energy during explosion, and we calculated how much of the released energy was transferred to neutrinos. Value of the speed of sound in the strongly interacting matter measured at the LHC confirms that presented here model is correct. Our calculations show that the Universe is cyclic. 展开更多
关键词 Scale-Symmetric theory Tension Cosmology Coupling Constants Parameters σ8 and S8 Largest cosmic Structures Dark Energy Supernova Explosion Cyclic Universe
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ARCADE 2 Spatial Roar, What Theory of Relation Reveals
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作者 Russell Bagdoo 《Journal of Modern Physics》 2024年第5期690-719,共30页
The theory of Relation provides an explanation for the Arcade 2 excess. It assumes that the isotropic radio emission measured by the Arcade 2 Collaboration, which is 5 - 6 times brighter than the expected contribution... The theory of Relation provides an explanation for the Arcade 2 excess. It assumes that the isotropic radio emission measured by the Arcade 2 Collaboration, which is 5 - 6 times brighter than the expected contributions from known extra-galactic sources, is the residue of an immense primitive energy of ordinary matter released by a relativistic bang almost 100 million years after the big bang, which gave the mass-energy the missing gravity to activate contraction. This relativistic bang, via a Lorentz energy transformation, would have released enormous energy held to be the source of the powerful radio noise detected by the NASA researchers. This transformation would have simultaneously triggered the formation of the first stars from dense gas and the reionization of less dense neutral gas. This departs from the idea that continuous reionization began after the formation of the first stars. We emphasize the importance of primordial magnetic fields, which would have generated significant density fluctuations during recombination and acted as a direct seed for cosmic structures. The first stars and galaxies were bathed in strong magnetic fields that gave rise to the radio microwave din (boom) discovered by Arcade 2. These intense magnetic fields alter the trajectory of charged particles zooming near the speed of light, triggering the space roar and emitting radiation that forms a synchrotron radio background. The theory of Relation offers an alternative to the Lambda-CDM cosmological model, which has become the standard model of the big bang, which leads straight to the vacuum catastrophe. 展开更多
关键词 Arcade 2 Excess Relativistic Bang theory of Relation Lorentz Energy Transformation cosmic Statics cosmic Boom Synchrotron Radio Background Primordial Magnetic Fields
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THE EXISTENCE AND UNIQUENESS OF TIME-PERIODIC SOLUTIONS TO THE NON-ISOTHERMAL MODEL FOR COMPRESSIBLE NEMATIC LIQUID CRYSTALS IN A PERIODIC DOMAIN
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作者 陈爽 郭闪闪 许秋菊 《Acta Mathematica Scientia》 SCIE CSCD 2024年第3期947-972,共26页
In this paper,we are concerned with a three-dimensional non-isothermal model for the compressible nematic liquid crystal flows in a periodic domain.Under some smallness and structural assumptions imposed on the time-p... In this paper,we are concerned with a three-dimensional non-isothermal model for the compressible nematic liquid crystal flows in a periodic domain.Under some smallness and structural assumptions imposed on the time-periodic force,we establish the existence of the time-periodic solutions to the system by using a regularized approximation scheme and the topological degree theory.We also prove a uniqueness result via energy estimates. 展开更多
关键词 compressible nematic liquid crystals time-periodic solution topological degree theory energy estimates
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The Validity of the Thermohydrogravidynamic Theory Concerning the Predicted Dates of the Maximal Temporal Intensifications of the Global Seismotectonic Processes of the Earth during the Range 2020 - 2023 AD
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作者 Sergey V. Simonenko 《Journal of Geoscience and Environment Protection》 2023年第7期242-255,共14页
We present (on the 13<sup>th</sup> International Conference on Geology and Geophysics) the convincing evidence that the strongest earthquakes (according to the U.S. Geological Survey) of the Earth (during ... We present (on the 13<sup>th</sup> International Conference on Geology and Geophysics) the convincing evidence that the strongest earthquakes (according to the U.S. Geological Survey) of the Earth (during the range 2020 - 2023 AD) occurred near the predicted (calculated in advance based on the global prediction thermohydrogravidynamic principles determining the maximal temporal intensifications of the global seismotectonic, volcanic, climatic and magnetic processes of the Earth) dates 2020.016666667 AD (Simonenko, 2020), 2021.1 AD (Simonenko, 2019, 2020), 2022.18333333 AD (Simonenko, 2021), 2023.26666666 AD (Simonenko, 2022) and 2020.55 AD, 2021.65 AD (Simonenko, 2019, 2021), 2022.716666666 AD (Simonenko, 2022), respectively, corresponding to the local maximal and to the local minimal, respectively, combined planetary and solar integral energy gravitational influences on the internal rigid core of the Earth. We present the short-term thermohydrogravidynamic technology (based on the generalized differential formulation of the first law of thermodynamics and the first global prediction thermohydrogravidynamic principle) for evaluation of the maximal magnitude of the strongest (during the March, 2023 AD) earthquake of the Earth occurred on March 16, 2023 AD (according to the U.S. Geological Survey). . 展开更多
关键词 thermohydrogravidynamic theory Non-Stationary cosmic Gravitation Generalized First Law of thermodynamics cosmic Geology cosmic Geophysics cosmic Seismology Global Seismotectonic Processes Global Prediction thermohydrogravidynamic Principles the Short-Term thermohydrogravidynamic Technology
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The Origin of Cosmic Microwave Background Radiation
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作者 Zhenglong Xu 《Journal of Modern Physics》 CAS 2023年第4期534-551,共18页
This paper explains the Olbers paradox and the origin of cosmic microwave background radiation (CMBR) from the viewpoint of the quantum redshift effect. The derived formula dispels the Olbers paradox, confirming that ... This paper explains the Olbers paradox and the origin of cosmic microwave background radiation (CMBR) from the viewpoint of the quantum redshift effect. The derived formula dispels the Olbers paradox, confirming that the CMBR originates from the superposition of light radiated by stars in the whole universe, not the relic of the Big Bang. The dark-night sky and CMBR are all caused by Hubble redshift—the physical mechanism is the quantum redshift of the photon rather than cosmic expansion. So this theory supports the infinite and steady cosmology. 展开更多
关键词 Olbers Paradox cosmic Microwave Background Radiation (CMBR) Big Bang theory Hubble Redshift Quantum Redshift Effect of Photon Stefan-Boltzmann Law Blackbody Radiation
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Investigation of the Interactive,Intimidating Relation Between Urbanization and the Environment in an Arid Area Based on Grey System Theory 被引量:5
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作者 QIAO Biao FANG Chuang-lin BAN Mao-sheng 《Journal of China University of Mining and Technology》 EI 2006年第4期452-456,共5页
Taking the Hexi Corridor in western China as an example, this paper studies the interactive intimate i relation between urbanization and the environment in add areas based on the grey system theory. The results show t... Taking the Hexi Corridor in western China as an example, this paper studies the interactive intimate i relation between urbanization and the environment in add areas based on the grey system theory. The results show that the grey relational degree between urbanization and the environment is low in the agriculture-oriented cities, modest in the tourism-oriented cities and great in the industry-oriented cities. The changing trend of coupling degree between urbanization and the environment does not entirely agree with that of urbanization or the environment. It showed fluctuating trends, which reflects the compactness and properties of the different stages of the coupling states between urbanization and the environment. In order to achieve a harmonious development with the environment in add areas, traditional development ideas about urbanization should be revised and more attention should be paid to the effect of restriction of water resources and the ecological environment on the development of the economy and society. 展开更多
关键词 URBANIZATION ENVIRONMENT grey system theory coupling degree
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Evaluaton model for the geometry complexity of casting based on fuzzy theory 被引量:1
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作者 吴士平 徐琴 +1 位作者 薛祥 吴光然 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2012年第4期9-12,共4页
The parameters that describe the complex degree of a certain casting are of some uncertainty. Therefore, a new method based on the fuzzy theory to classify the complex degree of castings has been presented in this pap... The parameters that describe the complex degree of a certain casting are of some uncertainty. Therefore, a new method based on the fuzzy theory to classify the complex degree of castings has been presented in this paper. The feasibility of fuzzy theory in describing the complex degree of castings has been discussed and the procedure of this method has been specified by analyzing the complex degrees of some typical castings. The element factors that influence the casting complexity, have been summarized, which include the wall-thickness and the number of transition surface, etc. The results show that it is reasonable and practicable to classify the complex degree of castings with the fuzzy theory. 展开更多
关键词 fuzzy theory CASTING complex degree GEOMETRY evaluation model
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The Theory of Membership Degree of Γ-Conclusion in Several n-Valued Logic Systems 被引量:2
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作者 Jiancheng Zhang 《American Journal of Operations Research》 2012年第2期147-152,共6页
Based on the analysis of the properties of Γ-conclusion by means of deduction theorems, completeness theorems and the theory of truth degree of formulas, the present papers introduces the concept of the membership de... Based on the analysis of the properties of Γ-conclusion by means of deduction theorems, completeness theorems and the theory of truth degree of formulas, the present papers introduces the concept of the membership degree of formulas A is a consequence of Γ (or Γ-conclusion) in Lukasiewicz n-valued propositional logic systems, Godel n-valued propositional logic system and the R0 n-valued propositional logic systems. The condition and related calculations of formulas A being Γ-conclusion were discussed by extent method. At the same time, some properties of membership degree of formulas A is a Γ-conclusion were given. We provide its algorithm of the membership degree of formulas A is a Γ-conclusion by the constructions of theory root. 展开更多
关键词 N-Valued Propositional Logic Γ-Conclusion theory ROOT MEMBERSHIP Degree
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On a Fractal Version of Witten’s M-Theory 被引量:12
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作者 Mohamed S. El Naschie 《International Journal of Astronomy and Astrophysics》 2016年第2期135-144,共10页
Starting from Witten’s eleven dimensional M-theory, the present work develops in an analogous way a corresponding dimensional fractal version where . Subsequently, the new fractal formalism is utilized to determine t... Starting from Witten’s eleven dimensional M-theory, the present work develops in an analogous way a corresponding dimensional fractal version where . Subsequently, the new fractal formalism is utilized to determine the measured ordinary energy density of the cosmos which turns out to be intimately linked to the new theory’s fractal dimension via non-integer irrational Lorentzian-like factor: where is Hardy’s probability of quantum entanglement. Consequently, the energy density is found from a limiting classical kinetic energy to be Here, is ‘tHooft’s renormalon of dimensional regularization. The immediate logical, mathematical and physical implication of this result is that the dark energy density of the cosmos must be in astounding agreement with cosmic measurements and observations. 展开更多
关键词 M-theory E-Infinity theory Hardy’s Quantum Entanglement Transfinite Turing Computer Dark Energy Accelerated cosmic Expansion Noncommutative Geometry Superstring theory Scale Relativity Cantorian-Fractal Spacetime Witten’s theory ‘tHooft Renormalon Pure Gravity Penrose Tiling
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Application of the Third Theory of Quantification in Screening Sensitive Geological Factors Influencing Coal and Gas Outburst 被引量:2
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作者 吴财芳 曾勇 张许良 《Journal of China University of Mining and Technology》 2003年第1期66-71,共6页
The principles of the third theory of quantification were discussed. The concept and calculation method of reaction degree were put forward, which have extended the applying range and scientificalness of the primary r... The principles of the third theory of quantification were discussed. The concept and calculation method of reaction degree were put forward, which have extended the applying range and scientificalness of the primary reaction. Taking the Zhongmacun mine as an example, the geological factors affecting coal and gas outburst were researched. Eight sensitive factors for the outburst of coal and gas were screened out from 11 geological factors using the method of unit classification and the third theory of quantification. On the basis of this, the Zhongmacun coal mine was classified into several divisions. The practice shows that it is feasible to apply the third theory of quantification to gas geology, which offers a new thought to screen the sensitive geological factors of gas outburst forecast. 展开更多
关键词 the third theory of quantification reaction degree sensitive geological factor gas outburst forecast
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Application of the third theory of quantification in coal and gas outburst forecast 被引量:1
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作者 吴财芳 秦勇 张许良 《Journal of Coal Science & Engineering(China)》 2004年第2期60-65,共6页
The essential principles of the third theory of quantification are discussed, the concept and calculated method of reaction degree are put forward which extend the ap- plying range and scientificalness of the primary ... The essential principles of the third theory of quantification are discussed, the concept and calculated method of reaction degree are put forward which extend the ap- plying range and scientificalness of the primary reaction. Taking the Zhongmacun Mine as example, on the base of analyzing the rules of gas geology synthetically and travers- ing the geological factors infecting coal and gas outburst, the paper adopts the method of combining carving up statistical units with the third theory of quantification, screens out 8 sensitive geological factors from 11 geological indexes and carries through the work of gas geology regionalism to the exploited area of Zhongmacun according to the researching result. The practice shows that it is feasible to apply the third theory of quantification to gas geology, which offers a new thought to screen the sensitive geo- logical factors of gas outburst forecast. 展开更多
关键词 the third theory of quantification reaction degree sensitive geological fac- tors gas outburst forecast
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The Accurate Mass Formulas of Leptons, Quarks, Gauge Bosons, the Higgs Boson, and Cosmic Rays 被引量:2
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作者 Ding-Yu Chung 《Journal of Modern Physics》 2016年第12期1591-1606,共16页
One of the biggest unsolved problems in physics is the particle masses of all elementary particles which cannot be calculated accurately and predicted theoretically. In this paper, the unsolved problem of the particle... One of the biggest unsolved problems in physics is the particle masses of all elementary particles which cannot be calculated accurately and predicted theoretically. In this paper, the unsolved problem of the particle masses is solved by the accurate mass formulas which calculate accurately and predict theoretically the particle masses of all leptons, quarks, gauge bosons, the Higgs boson, and cosmic rays (the knees-ankles-toe) by using only five known constants: the number (seven) of the extra spatial dimensions in the eleven-dimensional membrane, the mass of electron, the masses of Z and W bosons, and the fine structure constant. The calculated masses are in excellent agreements with the observed masses. For examples, the calculated masses of muon, top quark, pion, neutron, and the Higgs boson are 105.55 MeV, 175.4 GeV, 139.54 MeV, 939.43 MeV, and 126 GeV, respectively, in excellent agreements with the observed 105.65 MeV, 173.3 GeV, 139.57 MeV, 939.27 MeV, and 126 GeV, respectively. The mass formulas also calculate accurately the masses of the new particle at 750 GeV from the LHC and the new light boson at 17 MeV. The theoretical base of the accurate mass formulas is the periodic table of elementary particles. As the periodic table of elements is derived from atomic orbitals, the periodic table of elementary particles is derived from the seven principal mass dimensional orbitals and seven auxiliary mass dimensional orbitals. All elementary particles including leptons, quarks, gauge bosons, the Higgs boson, and cosmic rays can be placed in the periodic table of elementary particles. The periodic table of elementary particles is based on the theory of everything as the computer simulation model of physical reality consisting of the mathematical computation, digital representation and selective retention components. The computer simulation model of physical reality provides the seven principal mass dimensional orbitals and seven auxiliary mass dimensional orbitals for the periodic table of elementary particles. 展开更多
关键词 Mass Formulas Particle Masses LEPTONS QUARKS Gauge Bosons Higgs Boson cosmic Rays the Periodic Table of Elementary Particles Computer Simulation Knees-Ankles-Toe the theory of Everything
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From Witten’s 462 Supercharges of 5-D Branes in Eleven Dimensions to the 95.5 Percent Cosmic Dark Energy Density behind the Accelerated Expansion of the Universe 被引量:1
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作者 Mohamed S. El Naschie 《Journal of Quantum Information Science》 2016年第2期57-61,共5页
The measured 95.5% dark energy density of the cosmos presumed to be behind the observed accelerated cosmic expansion is determined theoretically based upon Witten’s five branes in eleven dimensions theory. We show th... The measured 95.5% dark energy density of the cosmos presumed to be behind the observed accelerated cosmic expansion is determined theoretically based upon Witten’s five branes in eleven dimensions theory. We show that the said dark energy density is easily found from the ratio of the 462 states of the five dimensional Branes to the total number of states, namely 528 minus the 44 degrees of freedom of the vacuum, i.e. , almost exactly as found in WMAP and Type 1a supernova measurements. 展开更多
关键词 Number theory Witten Branes Dark Energy Superstrings cosmic Expansion Type 1a Supernova E-INFINITY Exceptional Lie Symmetry Groups
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Evolution of Nielsen-Olesen's String from Chern-Simons Field Theory
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作者 DUAN Yi-Shi Institute of Theoretical Physics,Lanzhou University,Lanzhou 730000,ChinaSHI Xu-Guang College of Science,Beijing Forestry University,Beijing 100083,China 《Communications in Theoretical Physics》 SCIE CAS CSCD 2007年第7期147-150,共4页
We study the topology of Nielsen-Olesen's local field theory of single dual string.Based on the Chern-Simons field theory in three dimensons,we find many strings that can form world sheets in four dimensions.These... We study the topology of Nielsen-Olesen's local field theory of single dual string.Based on the Chern-Simons field theory in three dimensons,we find many strings that can form world sheets in four dimensions.These stringshave important relation to the zero point of the complex scalar field.These world sheets of strings can be expressed bythe topological invariant number,Hopf index,and Brower degree.Nambu-Goto's action is obtained from the Nielsen'saction definitely by using φ-mapping theory. 展开更多
关键词 φ-mapping theory dual string Nambu-Goto’s action Hopf index Brower degree
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How a Realistic Linear <i>R<sub>h</sub>= ct </i>Model of Cosmology Could Present the Illusion of Late Cosmic Acceleration
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作者 Eugene Terry Tatum U. V. S. Seshavatharam 《Journal of Modern Physics》 2018年第7期1397-1403,共7页
Realistic FLRW cosmic coasting models which contain matter now appear to be a reasonable alternative in explaining the accumulated Supernova Cosmology Project data since 1998. In sharp contrast to the unrealistic orig... Realistic FLRW cosmic coasting models which contain matter now appear to be a reasonable alternative in explaining the accumulated Supernova Cosmology Project data since 1998. In sharp contrast to the unrealistic original classic Milne universe, which was entirely devoid of matter, these modified Milne-type models containing matter, often referred to as realistic linear Rh = ct models, have rapidly become the primary competition with standard cosmology. This paper compares the expected relative luminosity distances and relative angular diameter distances for given magnitudes of redshift within these two competing models. A simple ratio formula is derived, which explains how expected luminosity distances and angular diameter distances for given magnitudes of redshift within a realistic Milne-type cosmic expansion could create the illusion (for standard model proponents) of cosmic acceleration where none exists. 展开更多
关键词 Dark Energy Survey COSMOLOGY theory cosmic COASTING cosmic Flatness Type Ia Supernovae CMBR Flat Space COSMOLOGY MILNE Universe theories
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Flat Space Cosmology as a Model of Light Speed Cosmic Expansion—Implications for the Vacuum Energy Density
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作者 Eugene Terry Tatum U. V. S. Seshavatharam 《Journal of Modern Physics》 2018年第10期2008-2020,共13页
Cosmologists have long ignored a stipulation by quantum field theorists that the vacuum pressure p corresponding to the zero-state vacuum energy must always be equal in magnitude to the vacuum energy density &rho;... Cosmologists have long ignored a stipulation by quantum field theorists that the vacuum pressure p corresponding to the zero-state vacuum energy must always be equal in magnitude to the vacuum energy density &rho;(i.e., p=&rho;). Although general relativity stipulates the additional condition of proportionality between the vacuum gravitational field and (&rho;+3p), the equation of state for the cosmic vacuum must fulfill both relativistic and quantum stipulations. This paper fully integrates Flat Space Cosmology (FSC) into the Friedmann equations containing a cosmological term, with interesting implications for the nature of dark energy, cosmic entropy and the entropic arrow of time. The FSC vacuum energy density is shown to be equal to the cosmic fluid bulk modulus at all times, thus meeting the quantum theory stipulation of (p=&rho;). To date, FSC is the only viable dark energy cosmological model which has fully-integrated general relativity and quantum features. 展开更多
关键词 COSMOLOGY theory General RELATIVITY Dark Energy cosmic Flatness cosmic Entropy Entropic ARROW of Time cosmic Inflation MILNE Universe Black Holes COSMOLOGICAL Constant Problem
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The World in an Equation: A Reappraisal of the Lemaître’s Primeval Cosmic Rays
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作者 Russell Bagdoo 《Journal of Modern Physics》 2019年第8期922-952,共31页
Based on radioactive phenomena (weak force), Georges Lema&icirc;tre conceives, as soon as 1927, the primeval universe as a “unique super-dense quantum”, whose disintegration gave birth to all the current compone... Based on radioactive phenomena (weak force), Georges Lema&icirc;tre conceives, as soon as 1927, the primeval universe as a “unique super-dense quantum”, whose disintegration gave birth to all the current components of the universe [1] [2]. Using quantum mechanics, he proposes to explain the origins of the world from the point of view of quantum theory. He believes to find in the cosmic rays the manifestation of the initial fragmentation. However, regardless of the adopted cosmology, the hypothesis of the primeval atom (cold big bang) had no equation to support it and was not retained. Like all other cosmologists, he fell back on the Friedmann-Einstein equation with a repulsive cosmological constant which, according to supernova observations at the end of the millennium, propels expansion towards infinity. We juxtapose our equation of “quantum cosmology” to this equation of relativistic cosmology. We have already proposed this equation in an earlier paper [3], which has its source in quantum mechanics and fits Lema&icirc;tre’s hypothesis of the “primeval atom”. It’s an equation in which the concept of matter-space-time is mathematically connected;gravitation and electromagnetism are also bound by space-time. A mechanism is described showing how velocity, time, distance, matter and energy, are correlated. We are led to ascertain that gravity and electricity are two distinct manifestations of a single underlying process: electrogravitation. For the first time, the cosmological time, considered as a real physical object, is integrated into a “cosmological equation” which makes coherent what we know regarding the time (its origin, its flow…), the matter and the space. Moreover, the equation indicates a constantly decelerated expansion. The concentration of the material medium and the importance of the decreasing energy of the vacuum contribute to the progressive increase of the positive pressure which becomes responsible for the increasing deceleration of the expansion. Does this mean that our equation leads us inevitably to the hypothesis of the primeval atom for the whole cosmos? Certainly not, since our model includes both the hot Gamow model and the cold Lema&icirc;tre model. The term “dynamic evolution” (used in the beginning by specialists for big bang models) is appropriate for our model since there is both an explosive origin and, throughout the expansion, a disintegration of a hyper-dense matter. The discovery of cosmic microwave background radiation has confirmed the hot big bang model that Gamow and his team have achieved. The predicted light prevailed over the primitive cosmic rays (particles) suggested by Lemaitre. Nevertheless, we think that Lemaitre was also right. The so-called big bang theory (singular cataclysmic explosion), in addition to not meeting basic criteria of science, is contradicted by several observations that are ignored. For example, the work of Armenian astronomers has convinced us that the origin of cosmic particles results not only from supernova explosions, but also from the partition of radio galaxies, not only from the death of the world, but also from their birth. 展开更多
关键词 theory of Relation IRREVERSIBLE COSMOLOGICAL Time π DECELERATION New Variable Quantum Cosmology Primeval Atom cosmic RAYS
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Cosmic Time as an Emergent Property of Cosmic Thermodynamics
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作者 Eugene Terry Tatum U. V. S. Seshavatharam 《Journal of Modern Physics》 2018年第10期1941-1945,共5页
This paper, in conjunction with recent Flat Space Cosmology (FSC) publications, provides theoretical support for cosmic time being an emergent property of cosmic entropy and temperature. Therefore, if Verlinde’s “em... This paper, in conjunction with recent Flat Space Cosmology (FSC) publications, provides theoretical support for cosmic time being an emergent property of cosmic entropy and temperature. Therefore, if Verlinde’s “emergent gravity” theory is correct, both time and gravity are most fundamentally emergent properties of cosmic thermodynamics. Since emergent properties within complex systems with a huge number of degrees of freedom are often not definable at the smallest scales, these results suggest that quantum time and quantum gravity may be no more definable than consciousness within two connecting neurons. String theorists now struggling to define quantum space-time and quantum gravity should bear this in mind. 展开更多
关键词 Flat Space COSMOLOGY COSMOLOGY theory Emergent Gravity DARK Matter cosmic Entropy Entropic ARROW of TIME Universal Temperature Black HOLES
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Application of Epistemic Utility Theory to Satisfactory Optimization
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作者 马淑霞 金炜东 《Journal of Southwest Jiaotong University(English Edition)》 2010年第2期171-176,共6页
Satisficing control remains an important concept in decision making. In this paper, a new epistemic utility satisficing control theory is proposed for a new model of complex CMMO ( constrained multi-objective multi d... Satisficing control remains an important concept in decision making. In this paper, a new epistemic utility satisficing control theory is proposed for a new model of complex CMMO ( constrained multi-objective multi degree-of-freedom optimization) system. As well, an epistemic utility function is developed and used to adjust the feasible region of soft constraints. The theory proved in this paper indicates that the utility function not only expresses the subjectivity of the original satisfactory-degree function, but also takes the cost of searching for a solution into account. Thus, the satisfactory-degree function can be adjusted and its rationality can be validated. This theory contributes an analytical method to the inverse satisfactory optimization problem. The findings indicate that this theory has good convergence and outcomes desired for satisfactory-degree functions. 展开更多
关键词 OPTIMIZATION Epistemic utility theory Satisfactory solution Satisfactory-degree function
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Analysis on the Change of Vegetation Cover and Its Prediction Method——A Case Study in Eastern Jilin 被引量:1
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作者 林楠 姜琦刚 +1 位作者 张红红 崔瀚文 《Agricultural Science & Technology》 CAS 2012年第8期1800-1804,共5页
[Objective] This study aimed to investigate the dynamic changes of vegetation cover and its prediction method. [Method] The NDVl was used as data source to perform the spatial overlay analysis on the vegetation covera... [Objective] This study aimed to investigate the dynamic changes of vegetation cover and its prediction method. [Method] The NDVl was used as data source to perform the spatial overlay analysis on the vegetation coverage changes of the study area in different time period under the GIS platform, with the aim to reveal the spatial distribution rules of the vegetation cover in Eastern Jilin Province during the recent 10 years. The Markov Model and Grey System G (1, 1) theory model were used to predict the vegetation cover change trend in Eastern Jilin Province. [Result] The vegetation cover increased a little, but staying stable in general. The regions with great changes were mainly around the lake and river. The prediction results of Markov Model and Grey System G (1, 1) theory model were consistent with the observed measurement. [Conclusion] This study provided referential basis for the effective protection of the vegetation coverage in mountainous forest, and important reference value for the scientific decision-making on the forest construction planning in Jilin Province as well as in China and sustainable development of social economy. 展开更多
关键词 Vegetation cover Dynamic degree Transfer matrix Markov model Grey system theory model
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