Results 61 to 70 of about 1,545,147 (253)

Quantum effects in thermal conduction: Nonequilibrium quantum discord and entanglement

open access: yes, 2011
We study the process of heat transfer through an entangled pair of two-level system, demonstrating the role of quantum correlations in this nonequilibrium process.
Dvira Segal, H. P. Breuer, Lian-Ao Wu
core   +1 more source

Hot and hypoxic environments inhibit simulated soccer performance and exacerbate performance decrements when combined. [PDF]

open access: yes, 2016
The effects of heat and/or hypoxia have been well-documented in match-play data. However, large match-to-match variation for key physical performance measures makes environmental inferences difficult to ascertain from soccer match-play.
Abt   +65 more
core   +5 more sources

Impact of Depression on Activation and Summer Heat Adaptation in Older Adults With Cardiovascular Concerns: Empirical Research Quantitative

open access: yesNursing Open
Aim To investigate the effects of depression on patient activation and summer heat adaptation, considering important contributory factors in older adults with increased cardiovascular health concerns on extremely hot days.
Yuli Zang   +3 more
doaj   +1 more source

Numerical Investigation on the Influence of Hot Streak Temperature Ratio in a High-Pressure Stage of Vaneless Counter-Rotating Turbine

open access: yesInternational Journal of Rotating Machinery, 2007
The results of recent studies have shown that combustor exit temperature distortion can cause excessive heat load of high-pressure turbine (HPT) rotor blades. The heating of HPT rotor blades can lead to thermal fatigue and degrade turbine performance. In
Zhao Qingjun   +3 more
doaj   +1 more source

Thermal state simulation analysis of molten iron ladle based on different insulation measures

open access: yes工程科学学报, 2018
The turnover time for transporting a hot metal from a blast furnace to a basic oxygen furnace is long and therefore the heat preservation effects are not ideal. These factors affect the temperature and thermal state of the ladle refractories, which leads
YUAN Fei   +3 more
doaj   +1 more source

Chandra Observations of ULIRGs: Extended Hot Gas Halos in Merging Galaxies [PDF]

open access: yes, 2003
We study the properties of hot gaseous halos in 10 nearby ultraluminous IRAS galaxies observed with the ACIS instrument on board Chandra. For all sample galaxies, diffuse soft X-ray emissions are found within ~10 kpc of the central region; their spectra ...
Figueroa-Feliciano E.   +5 more
core   +3 more sources

JAHA at Scientific Sessions 2024: Climate Change–Related Cardiovascular Health Effects in the Global South

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Climate change poses an escalating threat to cardiovascular and cerebrovascular health in the Global South, where vulnerability is amplified by rapid urbanization, poverty, and weak infrastructure.
Ana Navas‐Acien   +6 more
doaj   +1 more source

Experimental study of a novel downhole heat exchanger utilizing working fluids for enhanced heat exchange

open access: yesCase Studies in Thermal Engineering
This study designs and assesses a new type of shell and tube downhole heat exchanger (NDHE) equipped with organic working fluid (R32, R134a) to increase the thermal performance of the single well geothermal system.
Dongxi Liu   +6 more
doaj   +1 more source

Impact of Hot Pressing Temperature on Medium Density Fiberboard (MDF) Performance

open access: yesAdvances in Materials Science and Engineering, 2017
Hot pressing temperature is determined according to the performance of boards, type of glue, and production efficiency of hot press. During hot pressing, the thermal energy has enhanced the plasticity of the fiber and created conditions for the ...
W. Gul, A. Khan, A. Shakoor
doaj   +1 more source

Temperature dependence of trapped magnetic field in MgB2 bulk superconductor

open access: yes, 2003
Based on DC magnetization measurements, the temperature dependencies of the trapped magnetic field have been calculated for two MgB2 samples prepared by two different techniques: the high-pressure sintering and the hot pressing.
Fuchs, G.   +6 more
core   +1 more source

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