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61.
Synthesis and Structure of Inclusion Complex of Cyclomaltoheptaose(β—Cyclodextrin)with m—Aminophenol
IntroductionSupramoleculeisakindofsystemwithspecialstruc turedependingontheweakmolecularinteractions (suchasvanderWaals ,hydrogenbond ,electrostaticandhy drophobicinteractions) .Theweakinteractionsarerelatedtobiologicalprocesses ,forexample ,thecatalyticrea… 相似文献
62.
杭州大学弱智儿童问题研究组 《浙江大学学报(理学版)》1987,14(3):362-370
为了能对弱智儿童智力缺损的程度作出较好的鉴别和帮助矫治起见,编制了一份适用于浙江省的儿童智力量表。本文讨论量表内容的选择和确定。 研究过程与方法:以两套不同内容的材料(共71题),先后分两次对31名小学一年级7岁儿童和28名弱智学校儿童(7—13岁)进行个别测试。根据测试结果的分析和比较,最后选定42题,编排为10个分测验,作为本量表的内容。它们是:1)图画填充;2)照管日常生活;3)实物排列;4)计算;5)图片归类;6)分辨能力;7)拼积木;8)数字背诵;9)划去图形;10)理解。 相似文献
63.
64.
The Buenos Aires Cyclic Homology Group 《K-Theory》1991,5(1):51-69
We compute the cyclic homology of A = k[X]/X
n for an arbitrary commutative ring k, and we apply this result to compute the cyclic homology of k[X]/f, when k is a field and f is an arbitrary polynomial.This work was presented at the IX-ELAM, Santigo de Chile, July 1988, and was partially supported by CONICET.The following pepole participated in this research: Jorge A. Guccione, juan José guccione, Maria Julia Redondo, Andrea Solotar, and Orlando E. Villamayor. 相似文献
65.
Krishnan A Liu YH Cha P Woodward R Allara D Vogler EA;Hematology at Biomaterial Interfaces Research Group 《Colloids and surfaces. B, Biointerfaces》2005,43(2):95-98
A systematic comparison of Wilhelmy-balance tensiometry (WBT), tilting-plate goniometry (TPG) and captive-drop goniometry (CDG), using a variety of silane-treated glass surfaces of variable wetting characteristics is reported. WBT was assumed to be the benchmark of comparison (gold standard). Advancing angles measured by TPG and CDG were in statistical agreement with corresponding WBT measurements. In contrast, receding angles from both goniometric techniques were systematically higher than WBT. 相似文献
66.
Lewis JK Rudzinsky J Rajan S Stein PJ Vandiver A;KauaiEx Group 《The Journal of the Acoustical Society of America》2005,117(6):3539-3554
A tomographic scheme is presented that ingests ocean acoustic measurements into an ocean model using data from bottom-mounted hydrophones. The short distances between source-receiver pairs (1-10 km) means arrival times at frequencies of 8-11 kHz are readily detectable and often distinguishable. The influence of ocean surface motion causes considerable variability in acoustic travel times. Techniques are presented for measuring travel times and removing the variability due to surface waves. An assimilation technique is investigated that uses differences in measured and modeled acoustic travel times to impose corrections on the oceanographic model. Equations relating travel time differences to oceanographic variables are derived, and techniques are presented for estimating the acoustic and ocean model error covariance matrices. One test case using a single source-receiver pair shows that the tomographic information can have an impact on constraining the solution of the ocean circulation model but can also introduce biases in the predictions. A second test case utilizes knowledge of a bias in a model-predicted variable to limit grid cells that are impacted by the tomographic data. In this case, using the tomographic data results in significant improvements in the model predictions without introducing any biases. 相似文献
67.
68.
Franziska C. Vogl Sebastian Mehrl Leonhard Heizinger Inga Schlecht Helena U. Zacharias Lisa Ellmann Nadine Nürnberger Wolfram Gronwald Michael F. Leitzmann Jerome Rossert Kai-Uwe Eckardt Katja Dettmer Peter J. Oefner GCKD Study Investigators 《Analytical and bioanalytical chemistry》2016,408(29):8483-8493
69.
E. Study 《Mathematische Annalen》1886,27(1):102-105
Ohne Zusammenfassung 相似文献
70.
Sheng Lin LIU* Long Ya XU Su Juan XIE Qing Xia WANG Group Dalian Institute of Chemical Physics CAS P. O. Box Dalian 《中国化学快报》2001,(1)
There are abundant supplies of mixture gases containing CH4, C2H6, C3H8 and C4H10, etc. from FCC (Fluidized Catalytic Cracking) tail gas, refinery gas, etc. Commonly, the mixture gases are primarily combusted to carbon dioxide because the complete separation of CH4, C2H6, C3H8 and C4H10, respectively, from the mixture gases may not be economical. Provided that syngas (CO+H2) could be produced from the mixture gases over nickel supported catalysts with high selectivity and conversion,… 相似文献