排序方式: 共有51条查询结果,搜索用时 15 毫秒
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Grant DM Elson DS Schimpf D Dunsby C Requejo-Isidro J Auksorius E Munro I Neil MA French PM Nye E Stamp G Courtney P 《Optics letters》2005,30(24):3353-3355
We demonstrate an optically sectioned fluorescence lifetime imaging microscope with a wide-field detector, using a convenient, continuously tunable (435-1150 nm) ultrafast source for fluorescence imaging applications that is derived from a visible supercontinuum generated in a microstructured fiber. 相似文献
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Requejo-Isidro J McGinty J Munro I Elson DS Galletly NP Lever MJ Neil MA Stamp GW French PM Kellett PA Hares JD Dymoke-Bradshaw AK 《Optics letters》2004,29(19):2249-2251
We report the development of a high-speed wide-field fluorescence-lifetime imaging (FLIM) system that provides fluorescence-lifetime images at rates of as many as 29 frames/s. A FLIM multiwell plate reader and a potentially portable FLIM endoscopic system operating at 355-nm excitation have been demonstrated. 相似文献
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Stamp LM Mang SA Holmes AB Knights KA de Miguel YR McConvey IF 《Chemical communications (Cambridge, England)》2001,(23):2502-2503
A new polymer-supported chromium porphyrin has been prepared and fully characterised; its catalytic activity and recyclability were investigated for the ring-opening copolymerisation of 1,2-cyclohexene oxide (CHO) and carbon dioxide (CO2). 相似文献
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Markus Schinhaerl Gordon Smith Richard Stamp Rolf Rascher Lyndon Smith Elmar Pitschke Peter Sperber Andreas Geiss 《Applied Mathematical Modelling》2008
Computer-controlled polishing (CCP) is commonly used to finish high-quality surfaces, such as optical lenses. Based on magnetorheological finishing (MRF), a mathematical model to calculate the polishing tool characteristic (influence function) was developed and verified experimentally. The first part of this paper introduces the model to predict the size and shape of an influence function. The second part of this paper describes the calculation of the distribution of material removal within the size of an influence function. The model supersedes the current cumbersome procedure for determining an influence function and thus results in considerably improved and more economical manufacture. Furthermore, the model enables the quality of the final surface to be enhanced when polishing complex, for example aspherical or free-form, workpiece geometries and provides the first step in the application of time-variant influence functions. 相似文献
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R. F. Kiefl J. H. Brewer I. Affleck J. F. Carolan P. Dosanjh W. N. Hardy T. Hsu R. Kadono J. R. Kempton S. R. Kreitzman Q. Li A. H. O'Reilly T. M. Riseman P. Schleger P. C. E. Stamp H. Zhou L. P. Le G. M. Luke B. Sternlieb Y. J. Uemura H. R. Hart K. W. Lay 《Hyperfine Interactions》1991,63(1-4):139-144
We have searched for anomalous internal magnetic fields in highT
c materials which are predicted to occur in anyon and flux phase models of superconductivity. The magnitude, anisotropy and
temperature dependence of the observed fields inc-axis oriented samples of sintered YBa2CuO3O7 and of thick-film Bi2Sr2CaCu2O8 are consistent with a conventional nuclear dipolar origin. An upper limit of ≲0.08 mT is set for any anomalous magnetic fields
along thec-axis atμ
+ sites in bulk CuO2 superconductors. 相似文献
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