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229篇 您的检索式:作者名="THOMAS G I"
    题名 作者 年代 出处 被引量
1Efficient unidirectional polarization-controlled excitation of surface plasmon polaritons显示文摘Efficient excitation of surface plasmon polaritons(SPPs)remains one of the most challenging issues in areas of plasmonics related to information communication technologies.In particular,combining high SPP excitation efficiency and acceptance of any polarization of incident light appeared to be impossible to attain due to the polarized nature of SPPs.Here we demonstrate plasmonic couplers that represent arrays of gap SPP resonators producing upon reflection two orthogonal phase gradients in respective linear polarizations of incident radiation.These couplers are thereby capable of efficiently converting incident radiation with arbitrary polarization into SPPs that propagate in orthogonal directions dictated by the phase gradients.Fabricated couplers operate at telecom wavelengths and feature the coupling efficiency of,25%for either of two linear polarizations of incident radiation and directivity of SPP excitation exceeding 100.We further demonstrate that an individual wavelength-sized unit cell,representing a meta-scatterer,can also be used for efficient and polarization sensitive SPP excitation in compact plasmonics circuits.Anders Pors Michael G Nielsen Thomas Bernardin Jean-Claude Weeber Sergey I Bozhevolnyi 2014Light(Science & Applications)2014,3,1:11
2Correlation analysis of dual-energy CT iodine maps with quantitative pulmonary perfusion MRI显示文摘AIM:To correlate dual-energy computed tomography(DECT) pulmonary angiography derived iodine maps with parameter maps of quantitative pulmonary perfusion magnetic resonance imaging(MRI).METHODS:Eighteen patients with pulmonary perfusion defects detected on DECT derived iodine maps were included in this prospective study and additionally underwent time-resolved contrast-enhanced pulmonary MRI [dynamic contrast enhanced(DCE)-MRI].DCE-MRI data were quantitatively analyzed using a pixel-by-pixel deconvolution analysis calculating regional pulmonary blood flow(PBF),pulmonary blood volume(PBV) and mean transit time(MTT) in visually normal lung parenchyma and perfusion defects.Perfusion parameterswere correlated to mean attenuation values of normal lung and perfusion defects on DECT iodine maps.Two readers rated the concordance of perfusion defects in a visual analysis using a 5-point Likert-scale(1 = no correlation,5 = excellent correlation).RESULTS:In visually normal pulmonary tissue mean DECT and MRI values were:22.6 ± 8.3 Hounsfield units(HU);PBF:58.8 ± 36.0 mL/100 mL per minute;PBV:16.6 ± 8.5 mL;MTT:17.1 ± 10.3 s.In areas with restricted perfusion mean DECT and MRI values were:4.0 ± 3.9 HU;PBF:10.3 ± 5.5 mL/100 mL per minute,PBV:5 ± 4 mL,MTT:21.6 ± 14.0 s.The differences between visually normal parenchyma and areas of restricted perfusion were statistically significant for PBF,PBV and DECT(P < 0.0001).No linear correlation was found between MRI perfusion parameters and attenuation values of DECT iodine maps(PBF:r = 0.35,P = 0.15;PBV:r = 0.34,P = 0.16;MTT:r = 0.41,P = 0.08).Visual analysis revealed a moderate correlation between perfusion defects on DECT iodine maps and the parameter maps of DCE-MRI(mean score 3.6,k 0.45).CONCLUSION:There is a moderate visual but not statistically significant correlation between DECT iodine maps and perfusion parameter maps of DCE-MRI.Jan Hansmann Paul Apfaltrer Frank G Zoellner Thomas Henzler Mathias Meyer Gerald Weisser Stefan O Schoenberg Ulrike I Attenberger 2013World Journal of Radiology2013,5,5:6
3The constituent equation of piezoelectric bi- morphs显示文摘SMITS Jan G DALKE Susan I COONEY Thomas K 1991Sensors and Actuator A1991,28,1:2
4Comparative effectiveness of axitinib versus sorafenib in advanced renal cell carcinoma (AXIS): a randomised phase 3 trial显示文摘Brian I Rini Bernard Escudier Piotr Tomczak Andrey Kaprin Cezary Szczylik Thomas E Hutson M Dror Michaelson Vera A Gorbunova Martin E Gore Igor G Rusakov Sylvie Negrier Yen-Chuan Ou Daniel Castellano Ho Yeong Lim Hirotsugu Uemura Jamal Tarazi David Cella 2011The Lancet . 2011 (9807)2011,,9807:2
5Comparative effectiveness of axitinib versus sorafenib in advanced renal cell carcinoma (AXIS): a randomised phase 3 trial显示文摘Brian I Rini Bernard Escudier Piotr Tomczak Andrey Kaprin Cezary Szczylik Thomas E Hutson M Dror Michaelson Vera A Gorbunova Martin E Gore Igor G Rusakov Sylvie Negrier Yen-Chuan Ou Daniel Castellano Ho Yeong Lim Hirotsugu Uemura Jamal Tarazi David Cella 2011The Lancet2011,,9807:2
6Delay effect in models of population growth显示文摘Dang V G Yongwimon L Thomas I S 2005J Math Appl2005,305,:1
7Effect of Written Emotional Expression on Immune Function in Patients With Human Immunodefieiency Virus Infection: A Randomized Trial显示文摘Petrie K J Fontanilla I Thomas M G 2004J Psy chosomatic Medicine2004,66,:1
8In vivo selection of a target/efflux double mutant of Pseudomonas aeruginosa by ciprofloxacin therapy显示文摘Le Thomas I Couetdic G Clermont O 0,,:1
9Calculation of Mobile Location Using Scatter Information显示文摘Thomas N j Cruickshark D G M Laurenson D I 0,,09:1
10Calculation of Mobile Location Using Scatter Information显示文摘Thomas N J Cruickshark D G M and Laurenson D I 2001Electronic Letters2001,37,9:1
11Germinal transpositions of the maize element Dissocia-tion from T-DNA loci in tomato显示文摘Carroll B J Klimyuk V I Thomas C M Bishop G J HarrisonK Scofield S R Jones J D G 0,,:1
12Processing, mi- crostructure and property aspects ofa spraycast AI-Mg-Li-Zr alloy 显示文摘HOGG S C PALMER I G THOMAS L G 2007Acta Materialia2007,55,:1
13Synthesis and Structural Characterization of the Normal Spinel Li O4显示文摘Thomas M G S R David W I F Goodenough J B 1985Mater Res Bull1985,20,:1
14Special ergolines are highly selective, potent antagonists of the chemokine receptor CXCR3 : discovery, characterization and preliminary SAR of a premising lead 显示文摘Thoma G Baenteli R Lewis I 2009Bioorg Med Chem Lett2009,9,21:1
15Highly Pathogenic H5N1 Influerza Virus in Smuggled Thai Eagles,Belgium显示文摘BORM S V THOMAS I HANQUET G 2005EID2005,11,5:1
16CaO segregation in MnZn ferrite显示文摘LIN I N MISHRA R THOMAS G 1982IEEE Trans Magn1982,18,6:1
17Endometrial carcinoma-relative effectiveness of adjuvant irradiation vs therapy reserved for relapse显示文摘Ackerman I Malone S Thomas G 1996Gynecol Oncol1996,60,2:1
18Interaction of magnetic walls with microstructural features in spinel ferrites显示文摘LIN I N MISHRA R Thomas G 1984IEEE Trans Magn1984,20,1:1
19Processing, microstructure and property aspects of a spraycast Al-Mg-Li-Zr alloy 显示文摘HOGG S C PALMER I G THOMAS L G 2007Acta Materialia2007,55,:1
20Directed light fabrication of a solid metal hemisphere using 5-axis powder deposition 显示文摘MILEWSKJ J O LEWIS G K THOMA D J KEEL G I NEMEC RB REINERT R A 1998Journal of Materials Processing Technology1998,75,:1
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