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281篇 您的检索式:作者名="Williams Q"
    题名 作者 年代 出处 被引量
1Hypothetical model of dynamic biomarkers of the Alzheimer’s pathological cascade显示文摘Clifford R Jack David S Knopman William J Jagust Leslie M Shaw Paul S Aisen Michael W Weiner Ronald C Petersen John Q Trojanowski 2010Lancet Neurology2010,,1:4
2Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2.Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q 2006Journal of Semiconductors2006,27,4:2
3An infrared and Raman spectroscopic study of gypsum at high pressures 显示文摘Knittle E Phillips W Williams Q 2001Phys Chem Miner2001,28,9:1
4The effect of short - term withdrawal from continuous positive airway pressure therapy on sym- pathetic activity and markers of vascular inflammation in subjects with obstructive sleep apneea显示文摘Phillips CL Yang Q Williams A 2007J Sleep Res2007,16,2:1
5Photocrosslinkable polysaccharides based on chondroitin sulfate显示文摘Li Q Williams CG Sun DD 2004J Biomed Mater Res A2004,68,1:1
6Effect of pulsed electric field and thermal treatment on the physicochemical and functional properties of whey protein isolate 显示文摘Sui Q A Roginski H Williams R P W 2011International Dairy Journal2011,21,4:1
7A simulation study on the perfor- mance of an entrained-flow coal gasifier 显示文摘NI Q WILLIAMS A 1995Fuel1995,74,1:1
8ClarificationsoftheprocessthatleadtoanorectalmalformationsintheETU-inducedratmodelofimperforateanus显示文摘QIB Q WILLIAM S BEALE Y etal 2002PediatrSurg2002,37,:1
9Impact of peripheral nerve block with low dose local anesthetics on analgesia and functional outcomes following total knee arthroplasty:a ret- rospective study 显示文摘Liu Q Chelly JE Williams JP 2015Pain Med2015,16,5:1
10On two-side bounds related to weakly diagonally dominant Mmatrices with applications to digital circuit dynamics 显示文摘Shivakumar P Williams J Ye Q 1996SIAM J Matrix Anal Appl1996,17,:1
11The core-mantle boundary layer and deep Earth dynamics显示文摘Lay T Williams Q Garnero E J 1998Nature1998,392,:1
12Operator - splitting method for real - time substructure testing 显示文摘WU B XU G WANG Q WILLIAMS M S 2006Earthquake Engineering and Structural Dynamics2006,35,3:1
13A correlation between ultralow basal velocities in the mantle and hotspots显示文摘WILLIAMS Q REVENAUGH J S GARNERO E J 1998Science1998,281,:1
14An Infrared and Raman Spectroscopic Study of Gypsum at High Pressures 显示文摘Knittle E Phillips W Williams Q 2001Phys Chem Miner2001,28,:1
15Expression of integrinmessager ribonucleic acid in human endometrium:a quantitativereverse transcription poly merase chain reaction study显示文摘Dou Q Williams S Chengini N 1999Fertilsteril1999,71,2:1
16Continuous venous infusion 5 - Fu and interferon- a in pancreatic earcinoma显示文摘WiLLiam J J MeLissa Q F 1998Am J Clin OncoL1998,21,:1
17The Melting Curve of Iron to 250 Gigapascals:Implications for the Thermal State of the Earth 显示文摘Williams Q Jeanloz R Bass D J 1987Science1987,236,:1
18Expression of integrin messenger ribonucleic acid in human endometrium:a quantitative reverse transcription polymerase chain reaction study显示文摘Dou Q Williams RS Chegini N 1999Fertil Steril1999,71,2:1
19Operator-splitting method for real-time substructure testing 显示文摘Wu B Xu G Wang Q Williams M 2006Earthquake Engineering and Structural Dynamics2006,35,:1
20Measurements of CsI Band-gap Closure to 93 GPa显示文摘Williams Q Jeanloz R 1986Phys Rev Lett1986,56,2:1
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