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991.
DONG WenJun ZHAO HaiXin LI ChaoRong MEI Jie CHEN BeYong TANG WeiHua SHI Zhan & FENG ShouHua Center for Optoelectronics Materials Devices Center for Nanoscience Nanotechnology Key Laboratory of Advanced Textile Materials Manufacturing Technology Ministry of Education Engineering Research Center for Eco-Dying & Finishing of Textiles Zhejiang Sci-Tech University Hangzhou China State Key Laboratory of Inorganic Synthesis Preparative Chemistry College of Chemistry ... 《中国科学B辑(英文版)》2011,(6)
This paper reviews the recent research progress in the hetero-nanostructure of silver nanoparticles on MOx (M=Mo, Ti and Si). It describes the general synthesis of hetero-nanostructure of silver nanoparticles on MOx, and then outlines the interesting catalytic and sensing properties found in these hetero-nanostructures of silver nanoparticles on MOx. 相似文献
992.
ZHU XiaoSong CHENG Liang LU Lin & TENG Bin State Key Laboratory of Coastal Offshore Engineering Dalian University of Technology Dalian China School of Civil Resource Engineering The University of Western Australia Perth WA Australia Centre for Deepwater Engineering Dalian 《中国科学:物理学 力学 天文学(英文版)》2011,(3)
The Moving Particle Semi-implicit (MPS) method performs well in simulating violent free surface flow and hence becomes popular in the area of fluid flow simulation. However, the implementations of searching neighbouring particles and solving the large sparse matrix equations (Poisson-type equation) are very time-consuming. In order to utilize the tremendous power of parallel computation of Graphics Processing Units (GPU), this study has developed a GPU-based MPS model employing the Compute Unified Device Ar... 相似文献
993.
A series of carbosilane dendrimers with acetyl end-group were synthesized.Their structures were characterized by ~1H NMR,IR, and MS,respectively.Then dendrimers were coordinated with lanthanide ions(Eu~(3+) and Tb~(3+),respectively).The luminescence spectra of the complexes show narrow-width emissions in visible light region. 相似文献
994.
Study on the α-cyclodextrin/poly(ethylene glycol) self-assembly supramolecular nanoparticles for drug delivery
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LI Yuan JI Li WANG Gang SONG LiQing HE Bin LI Li NIE Yu WU Yao & GU ZhongWei National Engineering Research Center for Biomaterials Sichuan University Chengdu China 《中国科学:化学》2010,(3)
This paper reports the synthesis and drug delivery properties of a novel supramolecular nanoparticle.α-Cyclodextrins(α-CD) were threaded on cinnamic acid modified poly(ethylene glycol) to form inclusion complex nanoparticles by supramolecular self-assemble.The anti-tumor drug doxorubicin was loaded in the nanoparticles and released in vitro to study the drug release behavior and the anti-tumor effects.The structure and morphology of the nanoparticles were characterized by nuclear magnetic resonance,X-ray di... 相似文献
995.
YAN ShuQin ZHAO ChunXia WU XiuFang ZHANG Qiang & LI MingZhong National Engineering Laboratory for Modern Silk College of Textile Clothing Engineering Soochow University Suzhou China 《中国科学:化学》2010,(3)
The sol-gel transition behavior of Antherae pernyi silk fibroin(Ap-SF) has not been systematically investigated.In this work,the influence of environmental temperature,pH,the concentration of Ap-SF,K+ and Ca2+ on the gelation time,and the structural changes of Ap-SF in sol-gel transformation were studied.The results indicated that the gelation time of the Ap-SF aqueous solution decreased with the increase of the Ap-SF concentration and environmental temperature.The sol-gel transformation of Ap-SF was much m... 相似文献
996.
WANG Yun & ZHANG LiWei College of Information Sciences Engineering Sh ong Agricultural University Tai'an China 《中国科学 数学(英文版)》2010,(4)
Based on the differential properties of the smoothing metric projector onto the second-order cone,we prove that,for a locally optimal solution to a nonlinear second-order cone programming problem,the nonsingularity of the Clarke's generalized Jacobian of the smoothing Karush-Kuhn-Tucker system,constructed by the smoothing metric projector,is equivalent to the strong second-order sufficient condition and constraint nondegeneracy,which is in turn equivalent to the strong regularity of the Karush-Kuhn-Tucker p... 相似文献
997.
ZHAN Ming-Jian LIU Xiao-Hui ZHANG Qi-Sheng WANG Bing-Xi CHENG Yan-Xiang LU Can-Zhong 《结构化学》2012,31(8):1145-1151
Four novel Cu(Ⅰ) complexes,[Cu(o-PYO)(PPh3)2]BF4(1),[Cu(o-PYO)(DPEphos)]BF4(2),[Cu2 (o-PYO)(PPh3)3(CH3CN)](BF4)2(3) and [Cu2(o-PYO)(DPEphos)2 ](BF4)2(4) (o-PYO=2,5bis(pyridyl)-1,3,4-oxadiazole,PPh 3=triphenylphosphine,DPEphos=bis(2-(diphenylphosphanyl)phenyl)ether),have been synthesized and characterized by 1 H NMR,elemental analysis and single-crystal X-ray diffraction.The central cuprous ions in all complexes are surrounded by N and P atoms to form a distorted tetrahedral geometry,although one of the cuprous ions in complex 3 is coordinated by a PPh3 and an acetonitrile molecule due to the steric hindrance and weak coordination ability from monodentate PPh3 ligand.The UV-vis absorption spectra in CH2Cl2 show the characteristic metal-to-ligand charge transfer (MLCT) absorption bands in the region of 360-480nm.Four Cu(I) complexes exhibit yellow to orange-red phosphorescence with the emission maximum at 572,577,562 and 597nm,respectively in the solid state. 相似文献
998.
Three novel eco-friendly anti-creasing agents have been designed and synthesized.The natural silk fabrics treated with them exhibit higher wrinkle recovery degree,strength retention rate and whiteness than those finished with 1,2,3,4-butane tetracarboxylic acid(BTCA).The washing durability of the fabrics treated with the synthesized compounds and BTCA is similar.The chlorine atom.the carboxyl and the s-triazine ring in the synthesized structures and the surface roughness of the silk fabric are all contributive to the improvement of the crease resistance of silk. 相似文献
999.
In-situ Investigation of BBr_3/benzene Solution by Fourier Transformation Infrared Spectroscopy 总被引:1,自引:0,他引:1
YU Li-li GAI Li-gang CUI De-liang WANG Qi-long . State Key Laboratory of Crystal Materials Sh ong University Jinan P. R. China . School of Chemical Engineering Sh ong Institute of Light Industry Jinan 《高等学校化学研究》2009,25(5):733-737
By means of the in-situ Fourier transformation infrared spectroscopy(FTIR), the properties of BBr3/benzene solution, which is usually used as the reactant and solution to synthesize BN by benzene-thermal method, have been investigated. The results show that there are some side reactions between BBr3 and benzene: (1) BBr3 as an electron-deficient molecule reacts with benzene at room temperature; (2) below 100 °C, substitution of Br atom for H atom of benzene(ring―H) dominates in BBr3/benzene solution; (3) cr... 相似文献
1000.
环糊精在金属酶模拟中的应用 总被引:1,自引:0,他引:1
非共价作用(如氢键、静电和疏水作用)普遍存在于天然金属酶中,对酶活化或底物催化过程有重要的协同作用.近年来基于超分子化学理论的金属酶模拟研究不断向酶的活性中心亚稳态和次层结构的生物功能模拟方向发展.本文将根据报道的文献并结合本课题组的研究工作,对环糊精(一种重要的超分子主体)构建金属酶模型的研究进行综述. 相似文献