6708期

最新文章

• These dragons really do have iron teeth AI翻译
  作者：Enserink, Martin
• A molecular anion pump AI翻译
  作者：Shao, Baihao; Fu, Heyifei; Aprahamian, Ivan
  作者单位：Dartmouth College; University of Oxford; University of Oxford
  摘要：Pumping ions against a concentration gradient through protein-based transporters is a cornerstone of numerous biological processes. Mimicking this function by using artificial receptors remains a daunting challenge, mainly because of the difficulties in balancing between the requirement for high binding affinities and precise and on-demand ion capture and release properties. We report a trimeric hydrazone photoswitch-based receptor that converts light energy into work by actively transporting ...
• Nuclei engineering for even halide distribution in stable perovskite/silicon tandem solar cells AI翻译
  作者：Chen, Yihua; Yang, Ning; Zheng, Guanhaojie; Pei, Fengtao; Zhou, Wentao; Zhang, Yu; Li, Liang; Huang, Zijian; Liu, Guilin; Yin, Ruiyang; Zhou, Huanping; Zhu, Cheng; Song, Tinglu; Hu, Chun; Zheng, Dezhi; Bai, Yang; Duan, Ye; Ye, Yakuan; Wu, Yiliang; Chen, Qi
  作者单位：Beijing Institute of Technology; Chinese Academy of Sciences; Shanghai Advanced Research Institute, CAS; Zhangjiang Laboratory; Peking University; Jiangnan University; Beijing Institute of Technology
  摘要：Wide-bandgap (WBG) absorbers in tandem configurations suffer from poor crystallinity and weak texture, which leads to severe mixed halide-cation ion migration and phase segregation during practical operation. We control WBG film growth insensitive to compositions by nucleating the 3C phase before any formation of bromine-rich aggregates and 2H phases. The resultant WBG absorbers show improved crystallinity and strong texture with suppressed nonradiative recombination and enhanced resistance to...
• Study on braiding Indigenous and Western science halted AI翻译
  作者：Mervis, Jeffrey; Ortega, Rodrigo Perez
  摘要：After dispute over coproduction, U.S. National Academies takes unprecedented step of stopping $2 million study
• Safeguard stewards of biodiversity knowledge AI翻译
  作者：Levis, Carolina; Hanazaki, Natalia; Zank, Sofia; Peroni, Nivaldo; Juliao, Cristiane Gomes; da Silva, Marciano Toledo; Assis, Ana Luiza Arraes de Alencar; Nakamura, Elaine Mitie; Soldati, Gustavo; Almada, Emmanuel Duarte; Odonne, Guillaume; Teixidor-Toneu, Irene
  作者单位：Universidade Federal de Santa Catarina (UFSC); Princeton University; Universidade Federal de Santa Catarina (UFSC); Universidade Federal do Rio de Janeiro; Universidade Federal do Rio de Janeiro; Universidade Federal de Juiz de Fora; Universidade do Estado de Minas Gerais; Ifremer; Avignon Universite; Centre National de la Recherche Scientifique (CNRS); Aix-Marseille Universite
• US may move to protect giant clams AI翻译
  作者：Enserink, Martin
• Enhanced cation interaction in perovskites for efficient tandem solar cells with silicon AI翻译
  作者：Ugur, Esma; Said, Ahmed Ali; Dally, Pia; Zhang, Shanshan; Petoukhoff, Christopher E.; Rosas-Villalva, Diego; Zhumagali, Shynggys; Yildirim, Bumin K.; Razzaq, Arsalan; Sarwade, Shruti; Yazmaciyan, Aren; Baran, Derya; Laquai, Frederic; Deger, Caner; Yavuz, Ilhan; Allen, Thomas G.; Aydin, Erkan; De Wolf, Stefaan
  作者单位：King Abdullah University of Science & Technology; Marmara University; University of Munich
  摘要：To achieve the full potential of monolithic perovskite/silicon tandem solar cells, crystal defects and film inhomogeneities in the perovskite top cell must be minimized. We discuss the use of methylenediammonium dichloride as an additive to the perovskite precursor solution, resulting in the incorporation of in situ-formed tetrahydrotriazinium (THTZ-H+) into the perovskite lattice upon film crystallization. The cyclic nature of the THTZ-H+ cation enables a strong interaction with the lead octa...
• Voting for ecological protection AI翻译
  作者：Mayrose, Maya
• Recent tropical Andean glacier retreat is unprecedented in the Holocene AI翻译
  作者：Gorin, Andrew L.; Shakun, Jeremy D.; Jones, Andrew G.; Kennedy, Tori M.; Marcott, Shaun A.; Goehring, Brent M.; Zoet, Lucas K.; Jomelli, Vincent; Bromley, Gordon R. M.; Mateo, Emilio I.; Mark, Bryan G.; Rodbell, Donald T.; Gilbert, Adrien; Caffee, Marc W.
  作者单位：Boston College; University of California System; University of California Berkeley; University of Wisconsin System; University of Wisconsin Madison; Tulane University; Centre National de la Recherche Scientifique (CNRS); Universite PSL; College de France; INRAE; Institut de Recherche pour le Developpement (IRD); Aix-Marseille Universite; Ollscoil na Gaillimhe-University of Galway; University System of Ohio; Ohio State University; University System of Ohio; Ohio State University; Union College; Institut de Recherche pour le Developpement (IRD); Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS); Purdue University System; Purdue University; Purdue University System; Purdue University; University of California System; University of California Berkeley
  摘要：Tropical glaciers have retreated over recent decades, but whether the magnitude of this retreat exceeds the bounds of Holocene fluctuations is unclear. We measured cosmogenic beryllium-10 and carbon-14 concentrations in recently exposed bedrock at the margin of four glaciers spanning the tropical Andes to reconstruct their past extents relative to today. Nuclide concentrations are near zero in almost all samples, suggesting that these locations were never exposed during the Holocene. Our data ...
• Sea Level: A History AI翻译
  作者：Muka, Samantha
  作者单位：Stevens Institute of Technology