Results 21 to 30 of about 2,199,245 (317)
Inhomogeneous and Radiating Composite Fluids
Entropy, 2021 We consider the energy conditions for a dissipative matter distribution. The conditions can be expressed as a system of equations for the matter variables.
Byron P. Brassel +2 more
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On a Class of Harko-Kovacs-Lobo Wormholes
Universe, 2022 The Harko, Kovács, and Lobo wormhole (HKLWH) metric contains two free parameters: one is the wormhole throat r0, and the other is a dimensionless deviation parameter γ with values ...
Ramis Kh. Karimov +2 more
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Quasilocal energy conditions [PDF]
Physical Review D, 1995 The classical value of the Hamiltonian for a system with timelike boundary has been interpreted as a quasilocal energy. This quasilocal energy is not positive definite. However, we derive a `quasilocal dominant energy condition' which is the natural consequence of the local dominant energy condition.
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The null energy condition and cosmology [PDF]
Theoretical and Mathematical Physics, 2008 13 pages, Latex, 1 ...
Aref'eva, I. Ya., Volovich, I. V.
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Scientific Reports, 2021 Regarded as doped binary hydrides, ternary hydrides have recently become the subject of investigation since they are deemed to be metallic under pressure and possibly potentially high-temperature superconductors.
Prutthipong Tsuppayakorn-aek +4 more
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Defect Wormholes Are Defective
Universe, 2023 The various “defect wormholes” developed by Klinkhamer have recently attracted considerable attention—especially in view of the fact that the simplest example, the so-called “vacuum defect wormhole”, was claimed to be an everywhere-vacuum everywhere ...
Joshua Baines, Rudeep Gaur, Matt Visser
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Energy Conditions for Hamiltonicity of Graphs [PDF]
Discrete Dynamics in Nature and Society, 2014 LetGbe an undirected simple graph of ordern. LetA(G)be the adjacency matrix ofG, and letμ1(G)≤μ2(G)≤⋯≤μn(G)be its eigenvalues. The energy ofGis defined asℰ(G)=∑i=1n|μi(G)|. Denote byGBPTa bipartite graph. In this paper, we establish the sufficient conditions forGhaving a Hamiltonian path or cycle or to be Hamilton-connected in terms of the energy of ...
Guidong Yu +3 more
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Energy: A Register Of Research, Development And Demonstration In The United Kingdom: Wave Energy [PDF]
, 1980 WAVE ENERGY Sectors: Costs Data Collection Devices: Articulated Devices, Submerged Cylinder, Flexible Devices, Oscillating Water Column, Arrays of Converters, Rectifier.
Energy Technology Support Unit
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Dynamical Wormholes and Energy Conditions [PDF]
Progress of Theoretical Physics, 1995 A class of exact solutions of the Einstein field equations representing non-static wormholes that obey the {\em weak and dominant energy conditions } is presented. Hence, in principle, these wormholes can be built with less exotic matter than the static ones.
Wang, Anzhong, Letelier, Patricio S.
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Shaping array design of marine current energy converters through scaled experimental analysis [PDF]
, 2013 Marine current energy converters or tidal turbines represent an emerging renewable energy technology that can provide a predictable supply of electricity.
Myers, L.E. +3 more
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