Results 41 to 50 of about 688,532 (200)
Cejing jishuPassive thermal management systems are effective in slowing the rate of temperature rise of the logging tool electronics section. However, its excellent thermal insulation performance simultaneously leads to the slow cooling rate of the logging tool ...
YANG Gengjia +5 more
doaj +1 more source
Cooling timescale of dust tori in dying active galactic nuclei
, 2017 We estimate the dust torus cooling timescale once the active galactic nucleus (AGN) is quenched. In a clumpy torus system, once the incoming photons are suppressed, the cooling timescale of one clump from $T_{\rm dust}=1000$ K to several $10$ K is less ...
Ichikawa, Kohei, Tazaki, Ryo
core +1 more source
GRMHD simulations of accretion onto Sgr A*: How important are radiative losses? [PDF]
, 2012 We present general relativistic magnetohydrodynamic (GRMHD) numerical simulations of the accretion flow around the supermassive black hole in the Galactic centre, Sagittarius A* (Sgr A*).
Aitken +65 more
core +2 more sources
Active electron cooling of graphene
Advanced Functional MaterialsAbstract In the emergent field of quantum technology, the ability to manage heat at the nanoscale and in cryogenic conditions is crucial for enhancing device performance in terms of noise, coherence, and sensitivity. Here, we demonstrate the active cooling and refrigeration of the electron gas in graphene, by taking advantage of nanoscale ...
Federico Paolucci +3 more
openaire +2 more sources
The Cooling of Coronal Plasmas. iv: Catastrophic Cooling of Loops [PDF]
, 2013 We examine the radiative cooling of coronal loops and demonstrate that the recently identified catastrophic cooling (Reale and Landi, 2012) is due to the inability of a loop to sustain radiative / enthalpy cooling below a critical temperature, which can ...
Bradshaw, Stephen J., Cargill, Peter J.
core +2 more sources
Nonequilibrium Steady-State Fluctuations in Actively Cooled Resonators [PDF]
Physical Review Letters, 2009 to be published in Phys.
M. Bonaldi +17 more
openaire +7 more sources
Fast‐Response Variable‐Stiffness Magnetic Catheters for Minimally Invasive Surgery
Advanced ScienceIn minimally invasive surgery, such as cardiac ablation, magnetically steered catheters made of variable‐stiffness materials can enable higher dexterity and higher force application to human tissue.
Yegor Piskarev +8 more
doaj +1 more source
Numerical Study on Cooling Effect of Downhole Cooling System of Instrument While Drilling
Shiyou jixie, 2022 Deep and ultra-deep reservoirs have been listed as important replacement areas for oil and gas resources. However, downhole high temperature in deep layers shortens the service life of the instrument while drilling, and even makes it fail.
Liu Ke +3 more
doaj
Reversing cooling flows with AGN jets: shock waves, rarefaction waves, and trailing outflows
, 2017 The cooling flow problem is one of the central problems in galaxy clusters, and active galactic nucleus (AGN) feedback is considered to play a key role in offsetting cooling.
Duan, Xiaodong, Guo, Fulai, Yuan, Ye-Fei
core +1 more source
Active cooling photovoltaic with IoT facility
International Journal of Power Electronics and Drive Systems (IJPEDS), 2021 Harvesting energy from the sun makes the photovoltaic (PV) power generation a promising technology. To obtain a consistent state of charge (SOC), consistent energy must be harvested and efficiently directed to the battery. Overcharging or undercharging phenomena decreases the lifetime of the battery.
Muhammad Nizam Kamarudin +2 more
openaire +1 more source