6729期

最新文章

• Steady going in 2025 AI翻译
  作者：Thorp, H. Holden; Vinson, Valda; Kmec, Lauren
• Surface conduction and reduced electrical resistivity in ultrathin noncrystalline NbP semimetal AI翻译
  作者：Khan, Asir Intisar; Ramdas, Akash; Lindgren, Emily; Kim, Hyun-Mi; Won, Byoungjun; Wu, Xiangjin; Saraswat, Krishna; Chen, Ching-Tzu; Suzuki, Yuri; da Jornada, Felipe H.; Oh, Il-Kwon; Pop, Eric
  作者单位：Stanford University; Stanford University; Stanford University; Ajou University; International Business Machines (IBM); IBM USA; Stanford University; Stanford University; United States Department of Energy (DOE); SLAC National Accelerator Laboratory; Stanford University
  摘要：The electrical resistivity of conventional metals such as copper is known to increase in thin films as a result of electron-surface scattering, thus limiting the performance of metals in nanoscale electronics. Here, we find an unusual reduction of resistivity with decreasing film thickness in niobium phosphide (NbP) semimetal deposited at relatively low temperatures of 400 degrees C. In films thinner than 5 nanometers, the room temperature resistivity (similar to 34 microhm centimeters for 1.5...
• Solar geoengineering research faces geopolitical deadlock AI翻译
  作者：McLaren, Duncan; Corry, Olaf
  作者单位：University of California System; University of California Los Angeles; University of Leeds
• Compressed ionic plastic crystals are cool AI翻译
  作者：Tamarit, Josep-Lluis; Lloveras, Pol
  作者单位：Universitat Politecnica de Catalunya; Universitat Politecnica de Catalunya
  摘要：A family of materials exhibits a large thermal response at subambient temperatures
• Canadian forests are more conducive to high-severity fires in recent decades AI翻译
  作者：Wang, Weiwei; Wang, Xianli; Flannigan, Mike D.; Guindon, Luc; Swystun, Tom; Castellanos-Acuna, Dante; Wu, Wanli; Wang, Guangyu
  作者单位：University of British Columbia; Natural Resources Canada; Canadian Forest Service; Thompson Rivers University; Natural Resources Canada; Canadian Forest Service; Natural Resources Canada; Canadian Forest Service; Great Lakes Forestry Centre; University of Alberta; Parks Canada
  摘要：Canada has experienced more-intense and longer fire seasons with more-frequent uncontrollable wildfires over the past decades. However, the effect of these changes remains unknown. This study identifies driving forces of burn severity and estimates its spatiotemporal variations in Canadian forests. Our results show that fuel aridity was the most influential driver of burn severity, summer months were more prone to severe burning, and the northern areas were most influenced by the changing clim...
• Earth's clouds are shrinking, boosting global warming AI翻译
  作者：Voosen, Paul
  摘要：Narrowing storm bands may be a surprising and dangerous new feedback of climate change
• Historic UK medical research units under threat AI翻译
  作者：O'Grady, Cathleen
  摘要：New focus on challenge-led funding may see decades-old institutes close, scientists warn
• Waiting for Robots: The Hired Hands of Automation AI翻译
  作者：Greenbaum, Dov; Gerstein, Mark
  作者单位：Reichman University; Reichman University; Reichman University; Yale University; Yale University; Yale University
• Learning from a pandemic many are forgetting AI翻译
  作者：Cohen, Jon
• Disentangling the drivers of wildfires AI翻译
  作者：Gan, Jianbang
  作者单位：Texas A&M University System; Texas A&M University College Station
  摘要：The risk of wildfires varies across regions with different vegetation