-
作者:Yan, Zhenjie; Patel, Parth B.; Mukherjee, Biswaroop; Vale, Chris J.; Fletcher, Richard J.; Zwierlein, Martin W.
作者单位:Massachusetts Institute of Technology (MIT); Harvard University; Massachusetts Institute of Technology (MIT); Swinburne University of Technology; Swinburne University of Technology; University of California System; University of California Berkeley
摘要:Heat transport can serve as a fingerprint identifying different states of matter. In a normal liquid, a hotspot diffuses, whereas in a superfluid, heat propagates as a wave called second sound. Direct imaging of heat transport is challenging, and one usually resorts to detecting secondary effects. In this study, we establish thermography of a strongly interacting atomic Fermi gas, whose radio-frequency spectrum provides spatially resolved thermometry with subnanokelvin resolution. The superflu...
-
作者:Wang, Qingqing; Liu, Wei; Leung, Chun Chung; Tarte, Daniel A.; Gendron, Joshua M.
作者单位:Yale University
摘要:INTRODUCTION Daylength, or photoperiod, is a stable indicator of the season, and organisms can measure photoperiods to predict seasonal changes in climate. In plants, flowering and growth are often regulated by photoperiod, and the photoperiodic flowering pathway is well understood. By contrast, much less is known about how photoperiod regulates growth, including the measurement system and genes that are required. RATIONALE Studies of photoperiodic flowering have benefitted from mutants with o...
-
作者:[Anonymous]
-
作者:Brainard, Jeffrey
-
作者:Ryu, Ji-Kan; Koh, Gou Young
作者单位:Inha University; Inha University; Institute for Basic Science - Korea (IBS)
-
作者:[Anonymous]
-
作者:Truche, Laurent; Donze, Frederic-Victor; Goskolli, Edmond; Muceku, Bardhyl; Loisy, Corinne; Monnin, Christophe; Dutoit, Hugo; Cerepi, Adrian
作者单位:Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS); Institut de Recherche pour le Developpement (IRD); Universite Gustave-Eiffel; Universite Savoie Mont Blanc; CNRS - National Institute for Earth Sciences & Astronomy (INSU); Polytechnic University of Tirana (UPT); Universite de Bordeaux; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Universite de Toulouse; Universite Toulouse III - Paul Sabatier; Centre National de la Recherche Scientifique (CNRS); Institut de Recherche pour le Developpement (IRD); CNRS - National Institute for Earth Sciences & Astronomy (INSU)
摘要:Deep crustal production of hydrogen (H-2) is a potential source of primary energy if recoverable accumulations in geological formations are sufficiently large. We report direct measurements of an elevated outgassing rate of 84% (by volume) of H-2 from the deep underground Bulqize chromite mine in Albania. A minimum of 200 tons of H-2 is vented annually from the mine's galleries, making it one of the largest recorded H-2 flow rates to date. We cannot attribute the flux solely to the release of ...
-
作者:Zhang, Jingqi; Bermingham, Michael J.; Otte, Joseph; Liu, Yingang; Hou, Ziyong; Yang, Nan; Yin, Yu; Bayat, Mohamad; Lin, Weikang; Huang, Xiaoxu; StJohn, David H.; Dargusch, Matthew S.
作者单位:University of Queensland; University of Queensland; Chongqing University; Chongqing University; Royal Institute of Technology; Technical University of Denmark
摘要:Coarse columnar grains and heterogeneously distributed phases commonly form in metallic alloys produced by three-dimensional (3D) printing and are often considered undesirable because they can impart nonuniform and inferior mechanical properties. We demonstrate a design strategy to unlock consistent and enhanced properties directly from 3D printing. Using Ti-5Al-5Mo-5V-3Cr as a model alloy, we show that adding molybdenum (Mo) nanoparticles promotes grain refinement during solidification and su...
-
作者:[Anonymous]
-
作者:[Anonymous]