6688期

最新文章

• Big data in Earth science: Emerging practice and promise AI翻译
  作者：Vance, Tiffany C.; Huang, Thomas; Butler, Kevin A.
  作者单位：National Oceanic Atmospheric Admin (NOAA) - USA; California Institute of Technology; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); Environmental Systems Research Institute, Inc. (ESRI)
• The ebbs and flows of creativity AI翻译
  作者：McDonnell, Jeffrey
  作者单位：University of Saskatchewan; Ludong University; University of Birmingham
• In search of sentience AI翻译
  作者：Ball, Philip
  摘要：A provocative proposition paves the way for a long-overdue conversation about consciousness
• Electron highways are cooler AI翻译
  作者：Jakhar, Navita; Ibanez, Maria
  作者单位：Institute of Science & Technology - Austria
  摘要：Efficient and sustainable cooling is paramount to contemporary living. However, current cooling strategies require substantial energy. Thermoelectric technology could reduce energy consumption through localized cooling ( 1 ). This requires devices that efficiently convert electron flow into heat exchange, which has proven to be a formidable material challenge. On page 1204 of this issue, Qin et al. ( 2 ) report that through manipulating a material's atomic configuration and microstructure, out...
• Fracturing and tectonic stress drive ultrarapid magma flow into dikes AI翻译
  作者：Sigmundsson, Freysteinn; Parks, Michelle; Geirsson, Halldor; Hooper, Andrew; Drouin, Vincent; Vogfjoerd, Kristin S.; Ofeigsson, Benedikt G.; Greiner, Sonja H. M.; Yang, Yilin; Lanzi, Chiara; De Pascale, Gregory P.; Jonsdottir, Kristin; Hreinsdottir, Sigrun; Tolpekin, Valentyn; Frioriksdottir, Hildur Maria; Einarsson, Pall; Barsotti, Sara
  作者单位：University of Iceland; University of Iceland; University of Leeds; Uppsala University; GNS Science - New Zealand
  摘要：Many examples of exposed giant dike swarms can be found where lateral magma flow has exceeded hundreds of kilometers. We show that massive magma flow into dikes can be established with only modest overpressure in a magma body if a large enough pathway opens at its boundary and gradual buildup of high tensile stress has occurred along the dike pathway prior to the onset of diking. This explains rapid initial magma flow rates, modeled up to about 7400 cubic meters per second into a dike similar ...
• Biologists pledge AI controls AI翻译
  作者：Brainard, Jeffrey
• China boosts basic research AI翻译
  作者：Brainard, Jeffrey
• Biden's lean science budget doesn't fund all his priorities AI翻译
  作者：Mervis, Jeffrey
  摘要：White House faces tight spending cap in 2025 request
• EU regulations for maximum containment labs-Response AI翻译
  作者：Millett, Piers
• Grid-plainification enables medium-temperature PbSe thermoelectrics to cool better than Bi2Te3 AI翻译
  作者：Qin, Yongxin; Qin, Bingchao; Hong, Tao; Zhang, Xiao; Wang, Dongyang; Liu, Dongrui; Wang, Zi-Yuan; Su, Lizhong; Wang, Sining; Gao, Xiang; Ge, Zhen-Hua; Zhao, Li-Dong
  作者单位：Beihang University; Beihang University; Tianmushan Lab; Zhengzhou University; Kunming University of Science & Technology; Taiyuan University of Science & Technology
  摘要：Thermoelectric cooling technology has important applications for processes such as precise temperature control in intelligent electronics. The bismuth telluride (Bi2Te3)-based coolers currently in use are limited by the scarcity of Te and less-than-ideal cooling capability. We demonstrate how removing lattice vacancies through a grid-design strategy switched PbSe from being useful as a medium-temperature power generator to a thermoelectric cooler. At room temperature, the seven-pair device bas...