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111.
Modelling of multi-bodies in close proximity under water waves——Fluid resonance in narrow gaps 总被引:1,自引:0,他引:1
LU Lin TENG Bin CHENG Liang SUN Liang & CHEN XiaoBo Center for Deepwater Engineering Dalian University of Technology Dalian China State Key Laboratory of Structural Analysis for Industrial Equipment State Key Laboratory of Coastal Offshore Engineering School of Civil Resource Engineering The University of Western Australia Crawly Australia Centre for Offshore Research... 《中国科学:物理学 力学 天文学(英文版)》2011,(1)
Viscous fluid model and potential flow model with and without artificial damping force(f=-μV,μ the damping coefficient and V the local averaging flow velocity) are employed in this work to investigate the phenomenon of fluid resonance in narrow gaps between multi-bodies in close proximity under water waves.The numerical results are compared with experimental data available in the literature.The comparison demonstrates that both the viscous fluid model and the potential flow model are able to predict the res... 相似文献
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Cui Hua XUE Qi Ming MU Shu Hua CHEN* The Faculty of chemistry Sichuan University Chengdu 《中国化学快报》2001,(5)
Molecular tweezers is a novel type of artificial receptors, which not only offer the advantage of efficient construction but also their surfaces can be tailored for specific applications. The clefts of molecular tweezers are particularly effective in regard to complementarity with substrates since functional groups attached to the interior of the cleft converge on substrates held inside1. So, in recent years, the molecular tweezers receptors have attracted more and more attention in molecular … 相似文献
114.
YUAN Jing YAN Husheng** CHENG Xiaohui HE Binglin The State Key Laboratory of Functional Polymer Materials for Adsorption Separation Institute of Polymer Chemistry Nankai University Tianjin 《Chinese Journal of Reactive Polymers》2001,(1)
1. INTRODUCTION Biospecific affinity chromatography is a powerful technique for purification of proteins [1]. The biological affinity ligands in common use include enzyme substrates, inhibitors, cofactors, receptors, antibodies, etc. The advantage of these biological ligands is their very high recognition specialty for particular proteins. As a result, proteins can be purified in fewer steps, often to homogeneity, in a laboratory scale. However, scale-up of the analytical and laboratory p… 相似文献
115.
We analyzed statistically the linear correlation of the solva-tochromic shifts of the stilbazolium-like dyes in the nonselected solvents with the reaction field function, L(εr) - bL( n2), and the solvent polarity parameter, ETN, respectively, and observed that there were not perfectly linearity relationships between them, so we introduced ETN into L(εr) - bL(n2) to form a new reaction field function, L(εr) - bL(n2) g ETN, called as the modified reaction field function, which can be perfectly linearly correlated with the solvatochromic shifts of the stilbazolium-like dyes in the nonselected solvents. 相似文献
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ZHANG Hong YU Yaoting PAN Jilun XU Yuanping ZHU Hesun Bioactive Materials Research Laboratory Nankai University Tianjin The Center of Materials Research Beijing Institute of Technology Beijing 《Chinese Journal of Reactive Polymers》2001,(1)
1. INTRODUCTION Bioreactors using membranes as substrates of cell cultures have become widely used for hybrid liver support systems [1]. For enhancing and prolonging the metabolism of the bioreactors, cytocompatible membranes are necessary because the cell culture is closely affected by the substrate surface. Surface factors considered to be important in cell culture are the concentration of ionic groups, the nature of polar and non-polar groups and the hydrophilic-hydrophobic balance [2].… 相似文献
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Tsuneo Suzuki Kiyoshi Tanemura Chizuko Okada The Late Kenichi Arai Akira Awaji Takahachi Shimizu Takaaki Horaguchi 《Journal of heterocyclic chemistry》2001,38(6):1409-1418
7‐Alkanoyloxy‐3,7‐dimefhyl‐7,8‐dihydro‐6H‐isochromene‐6,8‐diones 12‐15 were synthesized in 69‐16% yields from the reaction of 2,4‐dihydroxy‐3‐methyl‐6‐(2‐oxopropyl)benzaldehyde 11 with p‐toluenesulfonic acid in various carboxylic acids such as acetic acid, propionic acid, butyric acid and heptanoic acid followed by oxidation with lead tetraacetate. On the other hand, (±)‐daldinin A 5 (oleate) was not obtained using oleic acid as a medium. In the cases of heptanoic acid and oleic acid, esters 16 and 17 were produced in 23 and 9% yields, respectively. 6,8‐Dihydroxy‐3,7‐dimethyl‐2‐benzopyrylium p‐toluenesulfonate 31 is considered as the intermediate for the production of 12‐15. Overall yields of isochromenes 12‐15 were 26‐6% starting from 2‐methylresorcinol for seven steps. 相似文献
120.
L. Anschütz W. Broeker H. Reihlen K. Th. Nestle A. Stock E. Pohland L. Schmid B. Becker C. Drucker C. Matignon B. Kubota T. Yamane R. Wright W. S. Ssadikow A. K. Michailow H. Jörg F. Pregl A. Rieche E. Fromm A. Friedrich The Svedberg G. v. Kozicki St. v. Pilat E. Gräfe H. J. Prins W. H. Chapin E. Berl und F. Rau 《Fresenius' Journal of Analytical Chemistry》1928,73(11):417-425
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