Results 91 to 100 of about 321,840 (309)

Gravitational Quenching by Clumpy Accretion in Cool Core Clusters: Convective Dynamical Response to Overheating

, 2011
Many galaxy clusters pose a "cooling-flow problem", where the observed X-ray emission from their cores is not accompanied by enough cold gas or star formation. A continuous energy source is required to balance the cooling rate over the whole core volume.
Avishai Dekel, Balbus, Balbus, Balbus, Begelman, Bertschinger, Bertschinger, Best, Binney, Binney, Birnboim, Birnboim, Birnboim, Birnboim, Blitz, Bregman, Bîrzan, Cattaneo, Cavagnolo, Ceverino, Churazov, Ciotti, Conroy, Conselice, David, De Young, Dekel, Dekel, Dekel, Dekel, Donahue, Edge, El-Zant, Fabian, Fabian, Fabian, Faltenbacher, Field, Fraternali, Giovanelli, Gnat, Guo, Heckman, Johansson, Kaufmann, Kent, Kereš, Khochfar, Kim, Kim, Kunz, Lacey, Landau, Leccardi, Maller, Markevitch, Murray, Naab, Narayan, Narayan, Neistein, Oh, Olano, Ostriker, Parrish, Parrish, Parrish, Popo, Press, Putman, Quataert, Rebusco, Rosner, Ruszkowski, Sanderson, Sharma, Spiegel, Spitzer, Sutherland, Thom, Voit, Wakker, Wang, Yuval Birnboim   +83 more
core   +1 more source

The role of radiative losses in the late evolution of pulse-heated coronal loops/strands [PDF]

, 2012
Radiative losses from optically thin plasma are an important ingredient for modeling plasma confined in the solar corona. Spectral models are continuously updated to include the emission from more spectral lines, with significant effects on radiative ...
Antiochos, Antiochos, Antiochos, Betta, Betta, Bradshaw, Bradshaw, Bradshaw, Bradshaw, Cargill, Cargill, Cargill, Dere, Dere, Doschek, E. Landi, F. Reale, Feldman, Feldman, Field, Gan, Guarrasi, Hansteen, Kaastra, Klimchuk, Klimchuk, Landi, Landi, Landini, MacNeice, McClymont, Mulu-Moore, Müller, Nagai, Nagai, Parker, Parker, Patsourakos, Peres, Peres, Peres, Raymond, Reale, Reale, Reale, Reale, Reale, Reale, Rosner, Soler, Terzo, Testa, Testa, Tucker, Tucker, Vernazza, Viall, Warren, Warren, Warren, Woods   +60 more
core   +2 more sources

Data‐Driven Discovery of Quaternary Ammonium Interlayers for Efficient and Thermally Stable Perovskite Solar Cells

Advanced Materials, EarlyView.
An active learning framework, grounded in independently generated in‐house experimental data, enables reliable discovery of high‐performance interfacial materials for perovskite solar cells. Iterative model refinement autonomously converges toward structurally robust quaternary ammonium architectures, establishing a new design principle for interfacial
Jongbeom Kim, Yang Jeong Park, Chaehoon Jeon, Nahye Shin, Jaewang Park, Seungun Lee, Jino Im, Sungroh Yoon, Sang Il Seok   +8 more
wiley   +1 more source

Multifunctional Solar Systems Based On Two-Stage Regeneration Absorbent Solution [PDF]

Problems of the Regional Energetics, 2015
The concepts of multifunctional dehumidification solar systems, heat supply, cooling, and air conditioning based on the open absorption cycle with direct absorbent regeneration developed.
Doroshenko A.V., Antonova A.R., Garh Saed   +2 more
doaj  

Summary report of technical discussion, NASA-ERDA solar energy proposal [PDF]

The impact of the reduced energy requirements and cooling loads of solar collectors is assessed. Energy conservation measures to reduce the energy consumption have been implemented.

core   +1 more source

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

Advanced Materials, EarlyView.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao, Yu Liu, Zhuofei Gan, Shiqi Hu, Jihyuk Yang, Zhuoran Wang, Mingjian Yuan, Wen‐Di Li, Ji Tae Kim   +8 more
wiley   +1 more source

On the Physical Origin of OVI Absorption-Line Systems

, 2002
We present a unified analysis of the O{\sc vi} absorption-lines seen in the disk and halo of the Milky Way, high velocity clouds, the Magellanic Clouds, starburst galaxies, and the intergalactic medium.
Begelman M., C. A. Norman, D. K. Strickland, Gibson B. K., K. R. Sembach, T. M. Heckman   +5 more
core   +1 more source

Empirical analysis of the solar contribution to global mean air surface temperature change [PDF]

, 2009
The solar contribution to global mean air surface temperature change is analyzed by using an empirical bi-scale climate model characterized by both fast and slow characteristic time responses to solar forcing: $\tau_1 =0.4 \pm 0.1$ yr, and $\tau_2= 8 \pm
Brohan, Crowley, Douglass, Eddy, Eichler, Fröhlich, Fröhlich, Gleisner, Hansen, Hegerl, Hegerl, Hoyt, Kirkby, Knutti, Krivova, Lean, Lockwood, Loehle, Mann, Moberg, Nicola Scafetta, North, North, Scafetta, Scafetta, Scafetta, Scafetta, Scafetta, Scafetta, Schwartz, Shaviv, van Loon, Wang, White, Wigley, Willson   +35 more
core   +1 more source

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Initial operation of a solar heating and cooling system in a full-scale solar building test facility [PDF]

The Solar Building Test Facility (SBTF) was constructed to advance the technology for heating and cooling of office buildings with solar energy. Its purposes are to (1) test system components which include high-performing collectors, (2) test the ...
Hamlet, I. L., Jensen, R. N., Knoll, R. H., Miao, D.   +3 more
core   +1 more source