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1511篇 您的检索式:作者名="A Boyde"
    题名 作者 年代 出处 被引量
1Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface显示文摘Light beams with a helical phase-front possess orbital angular momentum along their direction of propagation in addition to the spin angular momentum that describes their polarisation.Until recently,it was thought that these two‘rotational’motions of light were largely independent and could not be coupled during light–matter interactions.However,it is now known that interactions with carefully designed complex media can result in spin-to-orbit coupling,where a change of the spin angular momentum will modify the orbital angular momentum and vice versa.In this work,we propose and demonstrate that the birefringence of plasmonic nanostructures can be wielded to transform circularly polarised light into light carrying orbital angular momentum.A device operating at visible wavelengths is designed from a space-variant array of subwavelength plasmonic nano-antennas.Experiment confirms that circularly polarised light transmitted through the device is imbued with orbital angular momentum of 62'(with conversion efficiency of at least 1%).This technology paves the way towards ultrathin orbital angular momentum generators that could be integrated into applications for spectroscopy,nanoscale sensing and classical or quantum communications using integrated photonic devices.Ebrahim Karimi Sebastian A Schulz Israel De Leon Hammam Qassim Jeremy Upham Robert W Boyd 2014Light(Science & Applications)2014,3,1:39
2The Virulence Plasmid of Yersinia, an Antihost Genome 显示文摘Cornelis GR Boland A Boyd AP 1998Microbiology and Molecular Biology Reviews1998,62,:4
3利用腰围身高比预测有雄激素缺乏症的老年男性体内血清睾酮水平显示文摘老年男性血清睾酮的下降可能部分是由肥胖引起的,但是,还不能确定哪些肥胖相关的参数与睾酮水平最密切相关。我们研究过伴有雄激素缺乏症但健康状况良好的老年男性的年龄、肥胖和睾酮水平的关系。本研究中,我们从社区中募集了54岁以上无痛症或其他严重疾病的非吸烟男性做横向研究分析,测定身高,体重和腰围,并计算体质指数(BMI)和腰围身高比(WHt)。收集两个早上的血液样本,测量总睾酮,性激素结合球蛋白和促黄体激素。计算游离睾酮(cFT)。并对上述指标与肥胖参数之间的关系进行多元线性凹归分析。207名54-86岁之间的男性参与了此次研究。单因素分析结果表明腰围身高比与睾酮和游离睾酮的相关性明显高于体重和腰吲或体质指数。另外,对总睾酮和游离睾酮来说,体重和腰围以及身高都有重要意义(所有的P均小于0.05),身高值中加入体重和腰围值后,导致体重和腰用以及身高的回归系数都增加了,其中腰围呈负相关,身高呈正相关。总之,腰围身高比是预测健康但有雄激素缺乏症的老年男性的睾酮和游离睾酮最好的体质指标。Carolyn A Allan Roger E Peverill Boyd JG Strauss Elise A Forbes Robert I McLachlan 2011Asian Journal of Andrology2011,13,3:3
4Acquired mutation of the tyrosine kinase JAK2 in human myeloproliferative disorders显示文摘E Joanna Baxter Linda M Scott Peter J Campbell Clare East Nasios Fourouclas Soheila Swanton George S Vassiliou Anthony J Bench Elaine M Boyd Natasha Curtin Mike A Scott Wendy N Erber Anthony R Green 2005The Lancet . 2005 (9464)2005,,:2
5Solidstate low-loss intracavity saturable absorber for Nd:YLF lasers:An A-FPSA显示文摘KELLER U MILLER D A B BOYD G D 1992Opt Lett1992,17,7:2
6Differential bioavailability of soil-sorbed naphthalene to two bacterial spieces 显示文摘GUERIN W F BOYD S A 1992Applied Environmental Micro- biology1992,,58:1
7Pentachlorophenols sorption by organoclay显示文摘Boyd S A Sun S Lee J F 1998Clays Clay Miner1998,36,2:1
8A survey of trust and reputation systems for online service provision显示文摘Josang A Ismail R Boyd C 2007Preprint of Article Published in Decision Support Systems2007,43,2:1
9Toxicity of mono-,di- and tri-chlorophenols to lux marked terres- trial bacteria,Burkholderia species Rasc c2 and Pseudomonas fluorescens 显示文摘Boyd E M Killham K Meharg A A 2002Chemosphere2002,43,2:1
10Successful treatment of infantile hemangiomas with interferon-alpha-2b显示文摘Chang E Boyd A Nelson CC 1997J Pediatr Hematol Oncol1997,19,3:1
11Application of the lattice Boltzmann model to simulated stenosis growth in a two-dimensional carotid artery 显示文摘Boyd J Buick J Cosgrove J A 2005Physics in Medicine and Biology2005,50,:1
12Dynamic fault tree models for fault tolerant computer systems 显示文摘DUGAN J B BAVUSO S J BOYD M A 1992IEEE Transactions on Reliability1992,41,3:1
13Successful treatment of infantile hemangiomas with interferon-alpha-2b显示文摘Chang E Boyd A Nelson CC 0,,:1
14The exchange adsorption of ions from aqueous solutions by organic zeolitesⅡ:Kinetics显示文摘Boyd G E Adamson A W Myers L S 1947Journal of the American Chemical Society1947,69,11:1
15Isoflurane decreases self-re- newal capacity of rat cultured neural stem ceils 显示文摘Culley D J Boyd JD Palanisamy A 2011Anesthesiology2011,115,4:1
16Dynamic Fault-Tree Models for Fault-Tolerant Computer Systems 显示文摘Bechta Dugan J Bavuso S J Boyd M A 1992IEEE Trans on Reliability1992,41,3:1
17Changes in left atrial volume in diabetes mellitus:more than diastolic dysfunction? 显示文摘Kadappu KK Boyd A Eshoo S 2012Eur Heart J Cardiovase Imaging2012,13,12:1
18Attenuating organic contaminant mobility by soil modification显示文摘Boyd S A Lee J F Mortland M M 1988Nature1988,333,26:1
19Cosorption of organic contaiminates from water by hexadecyl-trimethylammonium exchanged clays显示文摘SHENG G XU S BOYD S A 1996Water Research1996,30,:1
20Microstructure and Mechanical Properties of Bainitic Low Carbon High Strength Plate Steels 显示文摘Yakubtsov I A Poruks P Boyd J D 2008Materials Science and Engineering2008,480,12:1
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