نتایج جستجو برای: 840
تعداد نتایج: 2226 فیلتر نتایج به سال:
Several parallel corpora built from European Union language resources are presented here. They were processed by state-of-the-art tools and made available for researchers in the Sketch Engine corpus management system. A completely new resource is introduced: EUR-Lex corpus, being one of the largest parallel corpus available at the moment, containing 840 million tokens of English and having the ...
Bi2Sr2CaCu2O8 thin films have been deposited on MgO single crystal substrates by spin-coating a solution based on 2-ethylhexanoate precursors dissolved in xylene. Pyrolysis takes place between 200°C and 450°C and is accompanied by the release of 2-ethylhexanoic acid, CO2 and H2O vapour. Highly c-axis oriented Bi2Sr2CaCu2O8 as well as Eror Ho-doped Bi2Sr2(Ca,Ln)Cu2O8 (Ln = Er, Ho) films were obt...
Methods We used published data on the altitudinal ranges of over 840 Nepalese mosses and liverworts to interpolate presence between maximum and minimum recorded elevations, thereby giving estimates of species richness for 100-m altitudinal bands. These were compared with previously published patterns for ferns and flowering plants, derived in the same way. Rapoport’s elevational rule was assess...
www.sciencemag.org SCIENCE VOL 325 14 AUGUST 2009 785 COVER Pulsars in our Galaxy newly discovered by the Fermi Gamma-ray Space Telescope, launched in June 2008. The objects emit broad gamma-ray beams that have enabled Fermi to locate a never-before-seen population. Fermi has also seen pulsars with millisecond periods and has detected at least one globular cluster (center left). See the Researc...
Under 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,899 10.2 5 to 9 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,652 9.3 10 to 14 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,317 8.1 15 to 19 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,492 8.8 20 to 24 years . . . . . . . . . . . . . . . . ...
Arylboration of vinylarenes and methyl crotonate with aryl halides and bis(pinacolato)diboron by cooperative Pd/Cu catalysis has been developed, giving 2-boryl-1,1-diarylethanes and an α-aryl-β-boryl ester in a regioselective manner. The reaction is compatible with a variety of functionalities and amenable to be scaled-up to a gram scale with no detriment to the yield. A short synthesis of the ...
Abstract Introduction The development of left ventricular hypertrophy in patients with severe aortic stenosis (AS) is accompanied by adaptive coronary flow regulation, both epicardial and microvascular compartment, which ultimately lead to a chronic ischemic insult even the absence obstructive artery disease. Intracoronary continuous thermodilution saline through dedicated infusion catheter (Ra...
We report initial findings around the Facebook and Twitter adoption trends of 840 fire and police departments affected by Hurricane Sandy. The data show that adoption increased during the time period directly surrounding Hurricane Sandy. Despite this increase, the creation of new online accounts since that time has been declining and overall adoption rates seem to be stabilizing. Lastly, the da...
Key Laboratory of Green Printing, Instit Sciences, Beijing, 100190, PR China. E-mail University of Chinese Academy of Sciences, Department of Chemical Physics, Hefei Nat the Microscale, University of Science and China State Key Laboratory of Solid Lubrication Chinese Academy of Sciences, Lanzhou, 730 † Electronic supplementary information apparatus, AFM topologies, ice front gro behavior on PME...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید