scholarly journals Killing horizons: Negative temperatures and entropy super-additivity

2018 ◽  
Vol 98 (10) ◽  
Author(s):  
M. Cvetič ◽  
G. W. Gibbons ◽  
H. Lü ◽  
C. N. Pope
Keyword(s):  
Negative Temperatures ◽  
Killing Horizons

On the dynamics of distribution of the American White Butterfly, Hyphantria cunea Drury, 1973 (Lepidoptera, Arctiidae), in Ukraine regarding the annual minimal air temperatures

2018 ◽  
Vol 14 (1) ◽  
pp. 44-57
Author(s):  
S. N. Shumov
Keyword(s):  
Air Temperature ◽  
Annual Reports ◽  
Complete Elimination ◽  
Hyphantria Cunea ◽  
White American ◽  
Gis Technologies ◽  
Data Analyses ◽  
Air Temperatures ◽  
Negative Temperatures

The spatial analysis of distribution and quantity of Hyphantria cunea Drury, 1973 across Ukraine since 1952 till 2016 regarding the values of annual absolute temperatures of ground air is performed using the Gis-technologies. The long-term pest dissemination data (Annual reports…, 1951–1985; Surveys of the distribution of quarantine pests ..., 1986–2017) and meteorological information (Meteorological Yearbooks of air temperature the surface layer of the atmosphere in Ukraine for the period 1951-2016; Branch State of the Hydrometeorological Service at the Central Geophysical Observatory of the Ministry for Emergencies) were used in the present research. The values of boundary negative temperatures of winter diapause of Hyphantria cunea, that unable the development of species’ subsequent generation, are received. Data analyses suggests almost complete elimination of winter diapausing individuals of White American Butterfly (especially pupae) under the air temperature of −32°С. Because of arising questions on the time of action of absolute minimal air temperatures, it is necessary to ascertain the boundary negative temperatures of winter diapause for White American Butterfly. It is also necessary to perform the more detailed research of a corresponding biological material with application to the freezing technics, giving temperature up to −50°С, with the subsequent analysis of the received results by the punched-analysis.

ISOMETRY HORIZONS IN SPHERICALLY SYMMETRIC SPACE–TIMES

2006 ◽  
Vol 03 (05n06) ◽  
pp. 1263-1271
Author(s):  
J. SZENTHE
Keyword(s):  
Symmetric Space ◽  
Spherically Symmetric ◽  
Isometric Action ◽  
Event Horizons ◽  
Killing Horizons

Some event horizons in space–times that are invariant under an isometric action, considered first by Carter, are called isometry horizons, especially Killing horizons. In this paper, isometry horizons in spherically symmetric space–times are considered. It is shown that these isometry horizons are all Killing horizons.

scholarly journals Multiple Killing horizons

2018 ◽  
Vol 35 (15) ◽  
pp. 155015 ◽  
Author(s):  
Marc Mars ◽  
Tim-Torben Paetz ◽  
José M M Senovilla
Keyword(s):  
Killing Horizons

scholarly journals Study of the Behavior of Cement Composites in the Conditions of Cyclic Exposure Positive and Negative Temperatures

2020 ◽  
Vol 972 ◽  
pp. 012052
Author(s):  
I V Erofeeva ◽  
V V Afonin ◽  
D V Emelyanov ◽  
V A Fedortsov ◽  
V V Moiseev ◽  
...  
Keyword(s):  
Cement Composites ◽  
Negative Temperatures

scholarly journals Origin of negative temperatures in systems interacting with external fields

2019 ◽  
Vol 383 (18) ◽  
pp. 2153-2158 ◽  
Author(s):  
Salvatore Calabrese ◽  
Amilcare Porporato
Keyword(s):  
External Fields ◽  
Negative Temperatures

scholarly journals Killing horizons and spinors

2014 ◽  
Vol 89 (10) ◽  
Author(s):  
Bruno Carneiro da Cunha ◽  
Amilcar de Queiroz
Keyword(s):  
Killing Horizons

Changes in the Structure and Properties Under Deformation of Austenitic-Ferritic Steel at Room and Negative Temperatures

2016 ◽  
Vol 57 (11-12) ◽  
pp. 645-651 ◽  
Author(s):  
L. A. Mal’tseva ◽  
A. V. Levina ◽  
Yu. N. Loginov ◽  
S. V. Gladkovskii ◽  
T. V. Mal’tseva ◽  
...  
Keyword(s):  
Ferritic Steel ◽  
Structure And Properties ◽  
Negative Temperatures

Bifurcate Killing horizons

1979 ◽  
Vol 20 (7) ◽  
pp. 1345-1348
Author(s):  
J. G. Miller
Keyword(s):  
Killing Horizons
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