Results 21 to 30 of about 30,955 (249)

The dynamical disconnection of sunspots from their magnetic roots

, 2005
After a dynamically active emergence phase, magnetic flux at the solar surface soon ceases to show strong signs of the subsurface dynamics of its parent magnetic structure. This indicates that some kind of disconnection of the emerged flux from its roots
Archontis, Basu, Baumann, Beck, Beckers, Caligari, Couvidat, D'Silva, D'Silva, Deinzer, Fan, Fan, Fan, Ferriz-Mas, Fisher, Hindman, Javaraiah, Kiefer, Kosovichev, M. Rempel, M. Schüssler, Magara, Meyer, Moreno-Insertis, Moreno-Insertis, Moreno-Insertis, Parker, Parker, Rempel, Schlüter, Schrijver, Schrijver, Schrijver, Schüssler, Schüssler, Spruit, Spruit, Strous, Tóth, van Ballegooijen, van Ballegooijen, Vishniac, Vögler, Wang, Zhao   +44 more
core   +1 more source

Passive radiative cooling [PDF]

10th edition of the conference on Textile Composites and Inflatable Structures, 2021
T. Hebrink, S. Zehentmaier
openaire   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

The Fate of Dead Radio-loud Active Galactic Nuclei: A New Prediction of Long-lived Shell Emission [PDF]

, 2015
We examine the fate of a dead radio source in which jet injection from the central engine has stopped at an early stage of its evolution ($t = t_j \lesssim 10^5$ yr). To this aim, we theoretically evaluate the evolution of the emission from both the lobe
Ito, Hirotaka, Kawakatu, Nozomu, Kino, Motoki, Orienti, Monica   +3 more
core   +2 more sources

Passive daytime radiative cooling

Photoniques
With average global temperatures constantly increasing, the emerging field of passive daytime radiative cooling holds promise to alleviate our growing cooling needs and protect the environment by providing us with electricity-free cooling power. Here, we briefly revise the principles behind this rapidly expanding field, its main material platforms and ...
Pattelli, Lorenzo, Papakonstantinou, Ioannis   +1 more
openaire   +2 more sources

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Advances and challenges in commercializing radiative cooling [PDF]

, 2019
Radiative cooling (RC) dissipates terrestrial heat to outer space through the atmospheric window, without external energy input and production of environmental pollutants. More and more efforts have been devoted to this clean promising cooling technology;
Feng, W, Liu, J, Zhang, J, Zhou, Z, Zuo, J   +4 more
core  

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Dynamics of Circumstellar Disks II: Heating and Cooling

, 1999
We present a series of 2-d ($r,\phi$) hydrodynamic simulations of marginally self gravitating disks around protostars using an SPH code. We implement simple dynamical heating and we cool each location as a black body, using a photosphere temperature ...
Andrew F. Nelson, Bonnell I. A., D’Antona F., Fukue J., Goldreich P., Henning Th., Murray J., Shakura N. J., Spruit H. C., Tamara V. Ruzmaikina, Willy Benz   +10 more
core   +2 more sources

Confined Population III Enrichment and the Prospects for Prompt Second-Generation Star Formation [PDF]

, 2012
It is widely recognized that nucleosynthetic output of the first, Population III supernovae was a catalyst defining the character of subsequent stellar generations. Most of the work on the earliest enrichment was carried out assuming that the first stars
Abel, Abel, Alvarez, Alvarez, Barkana, Bertschinger, Boley, Bovill, Bovill, Bromm, Bromm, Bromm, Bromm, Bromm, Busha, Chalence Safranek-Shrader, Chatzopoulos, Cherchneff, Cherchneff, Chiaki, Clark, Frebel, Fryxell, Gnat, Gnat, Gnedin, Goldbaum, Greif, Greif, Greif, Griffen, Górski, Heger, Heger, Hosokawa, Hummel, Jeon, Jeremy S. Ritter, Joggerst, Johnson, Karlsson, Karlsson, Kepner, Kitayama, Kitayama, Kohri, Komatsu, Koposov, Kravtsov, Lai, Li, Lindner, Lopez, Lunnan, MacFadyen, MacFadyen, Machida, Mackey, Madau, McKee, Mesinger, Milosavljević, Milosavljević, Milosavljević, Miloš Milosavljević, Mori, Murray, Murray, Nakasato, O'Shea, O'Shea, Oh, Omukai, Orly Gnat, Pan, Park, Park, Pawlik, Plewa, Rashkov, Ricker, Ricotti, Safranek-Shrader, Salvadori, Santoro, Scannapieco, Smith, Stacy, Susa, Susa, Tumlinson, Tumlinson, Volker Bromm, Wada, Whalen, Whalen, Whalen, Whalen, Whalen, Wise, Wise, Wise, Yoshida, Yoshida, Zackrisson, Zhang   +105 more
core   +3 more sources