Space-Time Region of Propagation of Heat Flux Through a Lubricated Contact with Account for the Heat-Shielding Effect of Oil Films

2021 ◽  
Author(s):  
D. A. Popov ◽  
A. M. Kadyrmetov ◽  
A. S. Pustovalov
Keyword(s):  
Heat Flux ◽  
Space Time ◽  
Shielding Effect ◽  
Time Region ◽  
Lubricated Contact ◽  
Heat Shielding ◽  
Oil Films

scholarly journals Natural Law and Universality in the Philosophy of Biology

2014 ◽  
Vol 22 (S1) ◽  
pp. S145-S162
Author(s):  
Alexander Reutlinger
Keyword(s):  
Natural Law ◽  
Explanatory Power ◽  
Philosophy Of Biology ◽  
Space Time ◽  
Space And Time ◽  
Region I ◽  
Unrestricted Domain ◽  
Time Region ◽  
Domain I

Several philosophers of biology have argued for the claim that the generalizations of biology are historical and contingent.1–5 This claim divides into the following sub-claims, each of which I will contest: first, biological generalizations are restricted to a particular space-time region. I argue that biological generalizations are universal with respect to space and time. Secondly, biological generalizations are restricted to specific kinds of entities, i.e. these generalizations do not quantify over an unrestricted domain. I will challenge this second claim by providing an interpretation of biological generalizations that do quantify over an unrestricted domain of objects. Thirdly, biological generalizations are contingent in the sense that their truth depends on special (physically contingent) initial and background conditions. I will argue that the contingent character of biological generalizations does not diminish their explanatory power nor is it the case that this sort of contingency is exclusively characteristic of biological generalizations.

scholarly journals Optimum Heat Shielding Effect of an Engine by using Aluminium, Zirconium Materials

2019 ◽  
Vol 8 (12) ◽  
pp. 1479-1485
Keyword(s):  
Shielding Effect ◽  
Heat Shields ◽  
Optimum Heat ◽  
Heat Shielding

A warmth shield is intended to shield a substance from retaining extreme warmth from an outside source by either dispersing, reflecting or basically engrossing the warmth. Because of the a lot of warmth radiated by inward burning motors, heat shields are utilized on most motors to shield segments and bodywork from warmth. Just as assurance, compelling warmth shields can give a presentation advantage by lessening the under-cap temperatures, accordingly decreasing the admission temperature. Warmth protecting is important to avert motor warmth from harming heat-delicate parts. Most of more established vehicles utilize straightforward steel warmth protecting to diminish warm radiation and convection. Itis currently most regular for present day vehicles are to utilize aluminum warmth protecting which has a lower thickness, can be effectively shaped and does not erode similarly as steel. Higher execution vehicles are starting to utilize fired warmth protecting as this can withstand far higher temperatures just as further decreases in warmth move.

The Theory of Extension

1997 ◽  
pp. 135-167
Author(s):  
Elizabeth M. Kraus
Keyword(s):  
Genetic Analysis ◽  
Space Time ◽  
Time Region

This chapter analyzes Part IV of Process and Reality. It begins with a discussion of coordinate division, which is the isolation of the separable elements in the inseparate unity of the satisfaction. In genetic analysis, which is likewise an analysis of these separable elements, the emphasis is placed on the feelings themselves: their arising, structure, subjective forms, integration, and comparison. Coordinate division, as an analysis of the concrete superject emergent from the process of feeling, concentrates on the fully determinate, unified space–time region actualized in the concrescence and distinguishes in it the sub-regions, extensive quanta, and standpoints which might be. Therefore, it is primarily the data from the physical pole of an entity which are susceptible to coordinate analysis. The remainder of the chapter explains extensive connection, flat loci, strains, and measurement.

Extended Nonequilibrium Variables for 1D Hyperbolic Heat Conduction

2020 ◽  
Vol 45 (3) ◽  
pp. 209-221 ◽  
Author(s):  
Sergey L. Sobolev ◽  
Igor V. Kudinov
Keyword(s):  
Heat Flux ◽  
Heat Conduction ◽  
Time Evolution ◽  
Space Time ◽  
Average Kinetic Energy ◽  
Hyperbolic Heat Conduction ◽  
Kinetic Temperature ◽  
Shannon Information Entropy ◽  
Space Time Evolution

AbstractWe use the Shannon (information) entropy to define an “entropic” temperature for 1D nonequilibrium system with heat flux. In contrast to the kinetic temperature, which is related to the average kinetic energy, the nonequilibrium entropic temperature is related to the changes in entropy and serves as a criterion for thermalization. However, the direction and value of the heat flux is controlled by the gradient of the kinetic temperature, whereas space-time evolution and the space-time evolution of the heat flux are governed by the hyperbolic heat conduction equation. The extended nonequilibrium variables, namely, entropy, entropic temperature, thermal conductivity, and heat capacity demonstrate a third-law-like behavior at high deviation from equilibrium when the heat flux tends to its maximum value, even at nonzero value of the kinetic temperature. The ratio of the heat flux to its maximum possible value plays a role of an order parameter – it varies from zero in the equilibrium (disordered) state to unity in the nonequilibrium (ordered) state.

scholarly journals LOOKING BEYOND THE THERMAL HORIZON: HIDDEN SYMMETRIES IN CHIRAL MODELS

2000 ◽  
Vol 12 (03) ◽  
pp. 461-473 ◽  
Author(s):  
B. SCHROER ◽  
H.-W. WIESBROCK
Keyword(s):  
Ground State ◽  
Degrees Of Freedom ◽  
Quantum Physics ◽  
Blow Up ◽  
Heat Bath ◽  
Original System ◽  
Space Time ◽  
Matter Content ◽  
Hidden Symmetries ◽  
Time Region

In thermal states of chiral theories, as recently investigated by H.-J. Borchers and J. Yngvason, there exists a rich group of hidden symmetries. Here we show that this leads to a radical converse of of the Hawking–Unruh observation in the following sense. The algebraic commutant of the algebra associated with a (heat bath) thermal chiral system can be used to reprocess the thermal system into a ground state system on a larger algebra with a larger localization space-time. This happens in such a way that the original system appears as a kind of generalized Unruh restriction of the ground state sytem and the thermal commutant as being transmutated into newly created "virgin space-time region" behind a horizon. The related concepts of a "chiral conformal core" and the possibility of a "blow-up" of the latter suggest interesting ideas on localization of degrees of freedom with possible repercussion on how to define quantum entropy of localized matter content in Local Quantum Physics.

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