Results 61 to 70 of about 97,119 (315)

Experimental study on the solar heating and night sky radiative cooling properties of biochar

Case Studies in Thermal Engineering
Daytime solar heating and nighttime radiative cooling are of great significance to global energy conservation and carbon neutrality because of their low cost, zero energy consumption and environmentally friendly characteristics.
Haiwei Xie, Jianyun Luo, Yan Zhang, Jiajuan Yan, Yuhao Qing   +4 more
doaj   +1 more source

A Parameter Study of the Dust and Gas Temperature in a Field of Young Stars

, 2007
We model the thermal effect of young stars on their surrounding environment in order to understand clustered star formation. We take radiative heating of dust, dust-gas collisional heating, cosmic-ray heating, and molecular cooling into account.
Andrea Urban, Doty, Flower, Goldsmith, Hildebrand, Klessen, Krumholz, Lee, Martel, Mueller, Neal J. Evans, Nenkova, Ossenkopf, Press, Shirley, Steven D. Doty, van der Tak, van der Tak, Young, Young, Young   +20 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Convective cores in galactic cooling flows [PDF]

, 2000
We use hydrodynamic simulations with adaptive grid refinement to study the dependence of hot gas flows in X-ray luminous giant elliptical galaxies on the efficiency of heat supply to the gas. We consider a number of potential heating mechanisms including
Alexei Kritsuk, Arimoto, Batchelor, Berger, Binney, Brighenti, Buote, Böhringer, Cappellaro, Colella, Davis, Ewald Müller, Faber, Fabian, Fujita, Harris, Heinz, Hunter, Hurlburt, Koekemoer, Kritsuk, Kritsuk, Kritsuk, Kritsuk, Loewenstein, Loewenstein, Mathews, Mathews, McNamara, Nulsen, Nulsen, Owen, Plewa, Porter, Press, Sarazin, Sutherland, Thomas, Thomas, Tomasz Plewa, van den Bergh   +40 more
core   +5 more sources

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Climate model simulation of winter warming and summer cooling following the 1991 Mount Pinatubo volcanic eruption

, 1999
We simulate climate change for the 2-year period following the eruption of Mount Pinatubo in the Philippines on June 15, 1991, with the ECHAM4 general circulation model (GCM).
Antuna, J., Graf, H., Kirchner, I., Robock, A., Stenchikov, G.   +4 more
core   +1 more source

Use of satellite data for radiative energy budget study of Indian summer monsoon [PDF]

, 1998
In this paper satellite-derived radiative energy budget such as shortwave radiative heating, longwave radiative heating and net radiation balance have been studied for the post-onset phase of summer monsoon 1979.
Chinthalu, GR, Mahajan, PN, Rajamani, S
core   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Passive isothermal film enabled by synergistic sky radiation energy harvesting and storage

Nano Research Energy
The substantial energy demand associated with active heating, cooling, and ventilation presents a pressing challenge for sustainable development. Conventional systems rely heavily on electricity, contributing to environmental strain and high energy costs.
Bin Yin, Zichao Xiong, Hanyu Chen, Primož Poredoš, Ruzhu Wang, Tingxian Li, Jiaxing Xu   +6 more
doaj   +1 more source

The constraint of plasma power balance on runaway avoidance

Nuclear Fusion, 2023
In a post-thermal-quench plasma, mitigated or unmitigated, the plasma power balance is mostly between collisional or Ohmic heating and plasma radiative cooling.
Christopher J. McDevitt, Xian-Zhu Tang, Christopher J. Fontes, Prashant Sharma, Hyun-Kyung Chung   +4 more
doaj   +1 more source