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Inclusion Behavior of Dimer β-CyclodextrinBridged with Aspartic Acid Derivative

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Chinese Chemical Letters 2001年第2期12卷 119-120页

作者： Le Xin SONG Coordination Chemistry Institute & state key laboratory of Coordination Chemistry, nanjing University, nanjing 210093 Coordination Chemistry Institute State Key Lab. of Coord. Chemistry Nanjing University Nanjing 210093 China

The (β-cyclodextrin (CD) dimer bridged with aspartic acid (ASP) derivative, FITC-ASP(NH-(-CD)2 (Host, FITC=fluorescein-4-isothiocyanate), was synthesized. Fluorescence polarization study showed that the novel host formed an inclusion compound, [FITC-ASP(NH-(-CD)2]ATA, for which Kd was determined to be 5.0×10-6 mol/L by Beacon 2000 Analyzer, when ATA (Guest) = Adm-Trp-Arg-Arg-NH2 (Adm = 1-adamantanecarboxylic acid, Trp = tryptophan, Arg = arginine), where Kd is the dissociation constant in aqueous solution at 298 K.

关键词： β-Cyclodextrin amino acid peptide inclusion compound fluorescence polarization.

The Report of Virtual Exhibition software Development

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Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 340-346页

作者： Yu Jian xin 1, Sun Yuan hao 1, Gong Zhen yu 2, Cao Jing 2 1. state key laboratory for novel software technology, nanjing University, nanjing 210093, china 2. Department of Computer Science and technology, nanjing University,nanjing 210093, china state key laboratory for novel software technology Nanjing University Nanjing China Department of Computer Science and technology Nanjing University Nanjing China

The main structure and key techniques of our Virtual Exhibition software are summarized. It demonstrates the practice of software Engineering during the development of our project and discusses the use of UML in it.

关键词： software engineering software process software quality assurance software configuration management software configuration item UML virtual reality

A novel aminated polymeric adsorbent for removing refractory dissolved organic matter from landfill leachate treatment plant

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Journal of Environmental Sciences 2009年第8期21卷 1089-1095页

作者： ZHANG Long, LI Aimin, WANG Jinnan, LU Yufei, ZHOU Youdong state key laboratory of Pollution Control and Resource Reuse, School of the Environment, nanjing University, nanjing 210093, china. state key laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing 210093 China

Refractory dissolved organic matter （DOM） from landfill leachate treatment plant was with high dissolved organic carbon （DOC） content. An aminated polymeric adsorbent NDA-8 with tertiary amino groups and sufficient mesopore was synthesized, which exhibited high adsorption capacity to the DOM （raw water after coagulation）. Resin NDA-8 performed better in the uptake of the DOM than resin DAX-8 and A100. Electrostatic attraction was considered as the decisive interaction between the adsorbent and adsorbate. Special attention was paid to the correlation between porous structure and adsorption capacity. The mesopore of NDA-8 played a crucial role during uptake of the DOM. In general, resin in chloride form performed a higher removal rate of DOC. According to the colunm adsorption test, total adsorption capacity of NDA-8 was calculated to 52.28 mg DOC/mL wet resin. 0.2 mol/L sodium hydroxide solution could regenerate the adsorbent efficiently.

关键词： electrostatic interactions chemically modified resin coagulation adsorption pore structure

Polymer-assisted nanoparticulate contrast-enhancing materials

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Science china Chemistry 2010年第3期53卷 479-486页

作者： DING Yin1,3,HU Yong2,WU Wei1 & JIANG XiQun1 1laboratory of Mesoscopic Chemistry and Department of Polymer Science and Engineering,College of Chemistry & Chemical Engineering,nanjing University,nanjing 210093,china 2National laboratory of Solid state Microstructure,Department of Material Science and Engineering,nanjing University,nanjing 210093,china 3key laboratory of Analytical Chemistry for Life Science,Ministry of Education,School of Chemistry and Chemical Engineering,nanjing University,nanjing 210093,china laboratory of Mesoscopic Chemistry and Department of Polymer Science and Engineering College of Chemistry & Chemical Engineering Nanjing University Nanjing China key laboratory of Analytical Chemistry for Life Science Ministry of Education School of Chemistry and Chemical Engineering Nanjing University Nanjing China National laboratory of Solid state Microstructure Department of Material Science and Engineering Nanjing University Nanjing China

The application of nanotechnology in medicine research has significant potential in modern biomedical research,disease diagnosis and *** fluorophore-based detection techniques have been widely used as imaging and signal transduction tools for the detection of trace levels of *** photosensitivity of the fluorophores,however,limits their application in such complex environments as living bio-systems where degradation or photobleaching *** nanoparticles have unique and stable optical,electrical,magnetic and catalytic properties because of their various shapes,sizes and *** potential of the nanoparticles as novel imaging agents has been studied as a possible solution to this *** modification of inorganic nanoparticles could enhance their biostability in physiological conditions and ability of targeting bioactive molecules.

关键词： contrast agent cell image gold nanoparticles iron oxide nanoparticles carbon nanotubes polymeric-inorganic hybrid nanoparticles

Syntheses,crystal structures and properties of three novel coordination polymers with tripodal imidazole-containing ligands and benzenetetracarboxylate

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Science china Chemistry 2010年第10期53卷 2164-2169页

作者： SU Zhi, FAN Jian & SUN WeiYin state key laboratory of Coordination Chemistry nanjing National laboratory of Microstructures Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, nanjing University, nanjing 210093, china state key laboratory of Coordination Chemistry nanjing National laboratory of Microstructures Coordination Chemistry Institute School of Chemistry and Chemical Engineering Nanjing University Nanjing China

Three novel coordination polymers, [Ni2(tib)2(btec)]·2H2O (1), [Co2(tib)2(btec)]·2H2O (2) and [Zn4(tib)2(btec)Cl4]·2H2O (3), have been synthesized by using mixed ligands of 1,3,5-tris(1-imidazolyl)benzene (tib) and 1,2,4,5-benzenetetracarboxylic acid (H4btec) under hydrothermal conditions. Complexes 1 and 2 have the same structure and are rare three-dimensional (3D) self-penetrating (3,4,5)-connected nets, while complex 3 is an unprecedented (3,4)-connected 3D net. The different structures of 1 (2) and 3 are ascribed to the distinct coordination geometry of the metal centers. The thermal stability and photoluminescence property of the complexes were investigated.

关键词： coordination polymer self-penetration crystal structure thermal stability photoluminescence property

An algorithm to compute maximal contractions for Horn clauses

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Science china(Information Sciences) 2011年第2期54卷 244-257页

作者： LUO Jie & LI Wei state key laboratory of software Development Environment, School of Computer Science and technology, Beihang University, Beijing 100191, china state key laboratory of software Development Environment School of Computer Science and Technology Beihang University Beijing China

In the theory of belief revision, the computation of all maximal subsets (maximal contractions) of a formula set with respect to a set of facts is one of the key problems. In this paper, we try to solve this problem by studying the algorithm to compute all maximal contractions for Horn clauses. First, we point out and prove the conversion relationship between minimal inconsistent subsets of union of the formula set and the set of facts and maximal contractions of the formula set with respect to the set of facts. Second, we prove a necessary condition of a set of Horn clauses to be minimal inconsistent. Then, based on these two conclusions, we propose an interactive algorithm to enumerate all minimal inconsistent subsets of a given set of Horn clauses and a second algorithm to compute maximal contractions from these minimal inconsistent subsets. Finally, we proposed an interactive algorithm to compute maximal contractions for Horn clauses by composing the above two algorithms.

关键词： maximal contraction minimal inconsistent set minimal subtraction Horn clause

Computed tomography of the acoustic nonlinearity parameter B/A for biological tissues via difference frequency wave from a parametric array in reflection mode

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Chinese Science Bulletin 2003年第22期48卷 2427-2430页

作者： WANG Huanlei, ZHU Xiaofeng, GONG Xiufen & ZHANG Dong state key laboratory of Modern Acoustics, Institute of Acoustics, nanjing University, nanjing 210093, china state key laboratory of Modern Acoustics Institute of Acoustics Nanjing University Nanjing China

Based on the finite amplitude insert-substitu- tion method, a novel technique to reconstruct the acoustic nonlinear parameter B/A tomography for biological tissues in reflection mode via the difference frequency wave generated by a parametric array is developed in this paper. An experimental system is established, and the beam pattern of the difference frequency wave is measured and compared with that excited directly from a transmitter at the same frequency. B/A tomography for several biological tissues including normal and pathological tissues, is experimentally obtained with satisfying quality. Results indicate that B/A imaging using this mode may become a novel modality in ultrasonic diagnosis.

关键词： X线断层摄影术插入置换法生物学超声波诊断

Study of the Security in Network Management Based on Mobile Agents

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The Journal of china Universities of Posts and Telecommunications 2004年第4期11卷 37-42页

作者： CHEN Zhi~1 WANG Ru-chuan~(1,2)1.Department of Computer Science and technology,nanjing University of Posts and Telecommunications,nanjing 210003,P.R.china 2.state key laboratory for novel software technology,nanjing University,nanjing 210093,P.R.china Department of Computer Science and technology Nanjing University of Posts ard Telecommunications Nanjing 210003

Security of mobile-agent based network management must be considered due to the widespread adoption of mo-bile agents in network management,which involves the protections of mobile agents,management station and managed *** integrated security model proposed in our paper incorporates the effective security countermeasures of these entitiesinto a trusted execution environment and two security protection *** based on Java virtual machine and Javacard independent on the network devices also with the cryptography technology in this model together protect the networkmanagement process.

关键词： network management mobile agent security Java card cryptography

A Fuzzy Directed Graph-Based QoS Model for Service Composition

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Wuhan University Journal of Natural Sciences 2007年第5期12卷 861-865页

作者： GUO Sanjun DOU Wanchun FAN Shaokun state key laboratory for novel software technology/ Department of Computer Science and technology Nanjing University Nanjing 210093 Jiangsu China

Web service composition lets developers create applications on top of service-oriented computing and its native description, discovery, and communication capabilities. This paper mainly focuses on the QoS when the concrete composition structure is unknown. A QoS model of service composition is presented based on the fuzzy directed graph theory. According to the model, a recursive algorithm is also described for calculating such kind of QoS. And, the feasibility of this QoS model and the recursive algorithm is verified by a case study. The proposed approach enables customers to get a possible value of the QoS before they achieve the service.

关键词： fuzzy directed graph service composition QoS model Web service