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75篇 您的检索式:作者名="Kjeld"
    题名 作者 年代 出处 被引量
1Lensless diffractive imaging with ultra-broadbandtable-top sources: from infrared to extreme-ultravioletwavelengths显示文摘Lensless imaging is an approach to microscopy in which a high-resolution image of an object is reconstructed from one or more measured diffraction patterns,providing a solution in situations where the use of imaging optics is not possible.However,current lensless imaging methods are typically limited by the need for a light source with a narrow,stable and accurately known spectrum.We have developed a general approach to lensless imaging without spectral bandwidth limitations or sample requirements.We use two time-delayed coherent light pulses and show that scanning the pulse-to-pulse time delay allows the reconstruction of diffraction-limited images for all the spectral components in the pulse.In addition,we introduce an iterative phase retrieval algorithm that uses these spectrally resolved Fresnel diffraction patterns to obtain high-resolution images of complex extended objects.We demonstrate this two-pulse imaging method with octave-spanning visible light sources,in both transmission and reflection geometries,and with broadband extreme-ultraviolet radiation from a high-harmonic generation source.Our approach enables effective use of low-flux ultra-broadband sources,such as table-top high-harmonic generation systems,for high-resolution imaging.Stefan Witte Vasco T Tenner Daniel WE Noom Kjeld SE Eikema 2014Light(Science & Applications)2014,3,1:5
2A simple interpretation of the surface temperature/vegetation index space for assessment of surface moisture status显示文摘Inge Sandholt Kjeld Rasmussen Jens Andersen 2001Remote Sensing of Environment2001,,2:5
3细胞内脂肪堆积和β细胞增殖的关系显示文摘目的研究脂肪酸(FA)对β细胞增殖抑制与细胞内的脂肪堆积的关系及相关的葡萄糖(Glu)浓度的影响。方法培养胰岛β细胞株Ins1E细胞,用3H胸腺嘧啶和3H棕榈酸掺入的方法分别研究β细胞增殖及β细胞内脂肪堆积。利用RTPCR方法测定肉毒碱棕榈酰转移酶1(CPT1)基因表达。结果与3.3mmol/LGlu比较,24小时后6.6mmol/L和11mmol/LGlu使细胞增殖增加2.27和3.04倍(P<0.05);加入0.4mmol/L棕榈酸后细胞增殖降为1.1和0.86倍(与无棕榈酸相比P<0.05)。高浓度的Glu使细胞内脂肪堆积增加15%~92%。TriacsinC或Wy14643能减少13%~54%的脂肪堆积,同时缓解FA对细胞增殖的抑制作用48%~71%。FA刺激CPT1基因的表达,Glu对其有剂量依赖性的抑制,20mmol/LGlu使CPT1基因的表达减少50%(P<0.05)。结论FA对β细胞增殖的抑制与脂肪在细胞内堆积有关,Glu可能通过抑制FA刺激CPT1基因的表达,增加FA堆积从而介导FA对细胞增殖的抑制作用。萧建中 杨文英 Kjeld Hermansen 2006中国糖尿病杂志2006,14,2:4
4A simple interpretation of the surface temperature/vegetation index space for assessment of surface moisture status显示文摘Inge Sandholt Kjeld Rasmussen Jens Andersen 2001Remote Sensing of Environment2001,,2:2
5Politics and Business Group Formation in China: The Party in Control? *显示文摘Kjeld Erik Br?dsgaard 2012The China Quarterly2012,,:2
6Efficacy and Safety Comparison of Liraglutide, Glimepiride, and Placebo, All in Combination With Metformin, in Type 2 Diabetes: The LEAD (Liraglutide Effect and Action in Diabetes)-2 study显示文摘Nauck Michael Frid Anders Hermansen Kjeld Shah Nalini S Tankova Tsvetalina Mitha Ismail H Zdravkovic Milan Düring Maria Matthews David R 2009Diabetes Care2009,,:2
7A Simple Interpretation of the Surface Temperature/vegetation Index Space for Assessment of Surface Moisture Status显示文摘Inge Sandholt Kjeld Rasmussen Jens Andersen 2002Remote Sensing Environment2002,,79:1
8Serum thyroglobulin as a risk factor for thyroid carcinoma显示文摘Hrafnkelsson J Tulinius H Kjeld M 2000Acta Oncologica2000,39,8:1
9Influence treatment efficacy in childhood acute lymphoblastic leukemia显示文摘Marie Louise D Kim D Kjeld S 2008Pediatr Hematol Oncol2008,30,11:1
10Politics and business group formtion in China: the Party in control 显示文摘Kjeld Erik BrOdsgaard 2012The China Quarterly2012,211,:1
11Subclinical intestinal inflammation: an inherited abnormality in Crohn’s disease relatives?显示文摘Bjarni Thjodleifsson Gudmundur Sigthorsson Nick Cariglia Inga Reynisdottir Daniel F. Gudbjartsson Kristleifur Kristjansson Jonathan B. Meddings Vilmundur Gudnason Johan H. Wandall Leif Percival Andersen Roy Sherwood Matthias Kjeld Einar Oddsson Hallgrimur 2003Gastroenterology2003,,7:1
12Heparin coating of the stent graft-effects on platelets, coagulation and complement activation显示文摘Kjeld Christensen Rolf Larsson Hakan Emanuelsson etc 2001Biomaterials2001,22,:1
13Creation of Novel Helical Ribbon and Double-Layered Nanotube TiO2 Structures Using an Organogel Template显示文摘Jong Hwa Jung Hideki Kobayashi Kjeld J C van Bommel 0,,14:1
14Systemic intermittent parathyroid hormone treatment improves osseointegration of press-fit inserted implants in cancellous bone显示文摘Henrik Daugaard Brian Elmengaard Troels Torp Andreassen Anders Lamberg Joan Elisabeth Bechtold Kjeld Soballe 2012Acta Orthopaedica2012,,4:1
15Analysis of trends in the Sahelian ‘rain-use efficiency’ using GIMMS NDVI, RFE and GPCP rainfall data显示文摘Rasmus Fensholt Kjeld Rasmussen 2010Remote Sensing of Environment2010,,2:1
16Fast-track hip and knee replacement- what are the issues显示文摘Henrik K Kjeld S 2010Acta Orthop2010,81,3:1
17Elucidation of the origin of multiple conformations of the human α3-chain type VI collagen C-terminal Kunitz domain: The reorientation of the Trp21 ring显示文摘Morten Dahl S?rensen S?ren M. Kristensen S?ren Bj?rn Kjeld Norris Ole Olsen Jens J. Led 1996Journal of Biomolecular NMR1996,,4:1
18Improved postprandial glycemic control with biphasic insulin aspart relative to biphasic insulin lispro and biphasic human insulin in patient with type 2 diabetes 显示文摘Kjeld H Michele C Heidi S 2002Diabetes Care2002,25,:1
19A simple interpretation of the surface temperature/vegetation index space for assessment of surface moisture status显示文摘Sandholt Inge Rasmussen Kjeld Andersen Jens 2002Remote Sensing of Environment2002,79,2:1
20Greenness in semi-arid areas across the globe 1981–2007 — an Earth Observing Satellite based analysis of trends and drivers显示文摘Rasmus Fensholt Tobias Langanke Kjeld Rasmussen Anette Reenberg Stephen D. Prince Compton Tucker Robert J. Scholes Quang Bao Le Alberte Bondeau Ron Eastman Howard Epstein Andrea E. Gaughan Ulf Hellden Cheikh Mbow Lennart Olsson Jose Paruelo Christian Schw 2012Remote Sensing of Environment2012,,:1
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