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Experimental study on filtering,transporting, concentrating and focusing of microparticles based on optically induced dielectrophoresis

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Science china(Technological Sciences) 2010年第9期53卷 2388-2396页

作者： ZHU XiaoLu,YIN ZhiFeng,GAO ZhiQiang & NI ZhongHua Jiangsu Key laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments,southeast university,nanjing 211189,china 1. Jiangsu Key laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments Southeast University Nanjing 211189 China

The key problem to be solved for the dielectrophoresis (DEP) application is to provide dynamically reconfigurable microelectrodes and low-cost methodology for bioparticle *** emergence of optically induced DEP (ODEP) based on photoconductive effect provides a potential solution for the above *** this paper,an ODEP chip is designed and fabricated,and the corresponding experimental platform was established,whereupon four types of particle manipulation regimes–filtering,transporting,concentrating and focusing based on ODEP are experimentally demonstrated and the operating performances are quantitatively *** experiment results show that the functions and performances of ODEP manipulation are heavily dependent on the geometrical shape,scales and speed of optical patterns,actuating signal frequency and the electric conductivity of the *** manipulation efficiency can increase by more than 50% via increasing the optical line ***,the efficiency is obviously affected by the inclination angle of the optical oblique lines in the manipulation of particle ***,the maximum velocity of particles increases with the increment of the inside radius and the thickness of the optical trapping *** manipulation efficiency is always related to signal frequency and solution conductivity,and empirically,satisfactory performance and high efficiency are obtained when the solution electric conductivity ranges from 5×10-4 S/m to 5×10-3 S/m.

关键词： optically-induced dielectrophoresis particle manipulation filtering transporting concentrating focusing

An efficient quantum secret sharing protocol with orthogonal product states

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Science china(Physics,Mechanics & Astronomy) 2007年第3期50卷 331-338页

作者： YANG YuGuang1,2, WEN QiaoYan3 & ZHU FuChen4 1 School of Computer, Beijing university of Technology, Beijing 100022, china 2 State Key laboratory of Information Security, Graduate university of Chinese Academy of Sciences, Beijing 100022, china 3 School of Science, Beijing university of Posts and Telecommunications, Beijing 100876, china 4 national Key laboratory for Modern communications, Chengdu 610041, china 1. School of Computer Beijing University of Technology Beijing 100022 China 2. State Key laboratory of Information Security Graduate University of Chinese Academy of Sciences Beijing 100022 China 3. School of Science Beijing University of Posts and Telecommunications Beijing 100876 China 4. national Key laboratory for Modern communications Chengdu 610041 China

An efficient quantum secret sharing protocol with orthogonal product states in the 33 Hilbert space is presented. The particles in the orthogonal product states form two particle sequences. One sequence is sent to Bob and the other is sent to Charlie after rearranging the particle orders. With the help of Alice, Bob and Charlie make the corresponding local measurement to obtain the information of the or- thogonal product states prepared. This protocol has many distinct features such as great capacity and high efficiency.

关键词： quantum secret sharing orthogonal product state orthogonal measurement

Sorption behavior of U(VI), ^(234)U(VI) and ^(238)U(VI) onto fracture-filling clays in Beishan granite, Gansu: Application to selecting the site of high-level radwaste repository in china

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Science china Earth Sciences 2005年第10期48卷 1649-1655页

作者： MIN Maozhong1,2, LUO Xingzhang3, WANG Ju4, JIN Yuanxin4 & WANG Rucheng1 1. Department of Earth Sciences, State Key laboratory of Mineral Deposit research, nanjing university, nanjing 210093, china 2. Center of Materials Analysis, nanjing university, nanjing 210093, china 3. Department of Environmental Science and Engineering, nanjing university, nanjing 210093, china 4. Beijing Geology Institute, Nuclear Industry, Beijing 100029, china Department of Earth Sciences State Key Laboratory of Mineral Deposit Research Nanjing University Nanjing China Center of Materials Analysis nanjing university nanjing china Department of Environmental Science and Engineering nanjing university nanjing china Beijing Geology Institute Nuclear Industry Beijing china

The first results of sorption experiments of U(VI), 234U(VI) and 238U(VI) onto original (unpurified) fracture-filling clays from No.1 monzonitic granite intrusion, Beishan area, Gansu Province, china are reported. The monzonitic granite intrusion is a potential location for a high-level radwaste (HLW) repository in china. The present experimental results show that the maximum U(VI) sorption reached 92% at near-neutral pH and the distribution coefficient (Kd) was 1226 mL/g. A high sorption capacity of the fracture-filling clays in host rock on radioactive ele-ments is necessary for HLW deep geological disposal repository. No preferential sorption of 234U onto the clays was found. Finally, the sorption of U(VI) onto the clays was also modeled using a surface complexation model.

关键词： HLW geological disposal repository, granite, uranium, radionuclide, clay, sorption.

Synthesis of N^(11)-anchoring biotinylated artemisinin derivatives and their preliminary biological assessment

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Science china Chemistry 2010年第1期53卷 119-124页

作者： PAN QiYu1,2,WANG ShaoZhong1,LU JinJian3,MENG LingHua3 & YAO ZhuJun1,2 1nanjing national laboratory of Microstructures(NNLM),School of Chemistry and Chemical Engineering,nanjing university,nanjing 210093,china 2Joint laboratory of Green Chemistry,Department of Chemistry,university of Science and Technology of china,Hefei 230026,china 3State Key laboratory of Drug research,Shanghai Institute of Materia Medica,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai 201203,china. 1. nanjing national laboratory of Microstructures (NNLM) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China2. Joint Laboratory of Green Chemistry Department of Chemistry University of Science and Technology of China Hefei 230026 China3. State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 201203 China

Unique endoperoxide moiety of artemisinin and its derivatives has been considered the functionality exhibiting highly potent antimalarial and anticancer *** investigate the mechanisms of their biological actions,development of suitable molecular probes including biotinylated derivatives is of extreme *** synthesis and preliminary biological assessment of four new biotinylated artemisinin derivatives have been reported in this work.

关键词： artemisinin endoperoxide biotinylated derivative synthesis anticancer activity

Lys751Gln polymorphism in ERCC2 gene is associated with lung cancer susceptibility in the Chinese population

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Progress in Natural Science:Materials International 2007年第7期17卷 872-876页

作者： Liang Geyu Pu Yuepu Yin Lihong (School of Public Health,southeast university,nanjing 210009,china) School of Public Health Southeast University Nanjing 210009 China

The excision repair cross-complementing group 2(ERCC2)gene encodes a DNA repair protein,which is absolutely necessary in nucleotide excision repair.A polymorphism in codon 751 that induces a Lys→Gln substitution has been suggested to reduce the DNA repair ***,we conducted a matched case-control study to investigate the role of ERCC2 Lys751Gln polymor- phism in the development of lung cancer in the Chinese *** genotype of ERCC2 gene was analyzed by di-allele-specific-amplifi- cation with artificially modified primers(diASA-AMP)in 200 original lung cancer cases and 200 *** results showed that carriers of Lys/Gln and Gln/Gln genotypes had a 3.32-fold higher risk of lung cancer compared with carriers of Lys/Lys ***, the mutant genotypa of 751Gln allele was found to be associated with an increased risk in both lung squamous cell carcinoma and lung ade- ***,no significant interaction between 751Gln variants and smoking was observed after stratifying according to the smoking status in this *** results suggest that the Lys751Gln polymorphism in ERCC2 gene is a potential biomarker for suscepti- bility of lung cancer in the Chinese population.

关键词： lung cancer ERCC2 SNPs diASA-AMP

An optimized non-unitary linear precoding design for OSTBCs

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Science china(Information Sciences) 2010年第2期53卷 335-343页

作者： HUANG HaiYang , WU Gang, LU Lu & LI ShaoQian national Key laboratory of communications, university of Electronic Science and Technology of china, Chengdu 610054, china 1. national Key laboratory of communications University of Electronic Science and Technology of China Chengdu 610054 China

This paper tackles the optimization of non-unitary linear precoding design for orthogonal spacetime block codes (OSTBCs). We dig out the transmission potentials by the analysis from eigen-space point of view according to the unique structure of OSTBCs. The proposed precoding form is proven to be theoretically optimized. Compared with the classical unitary Grassmannian codebook design, the non-unitary codebook further improves the overall performance of practical systems. The constraint on codebook size to guarantee full diversity order is given and proven. Based on this, we investigate the codebook construction method combined with a water-filling (WF) technique to reduce the impact of antenna correlation. The advantages of the novel design are verified via numerical simulations.

关键词： multi-antenna linear precoding OSTBCs non-unitary design antenna correlation

Magnetic mineralogy of the Hongqiling Cu-Ni sulphide deposit: Implications for ore genesis

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Progress in Natural Science:Materials International 2007年第10期17卷 1192-1198页

作者： Xi Aihua1,2, Ge Yuhui1, Cai Yuanfeng2 and Zhang Xuefeng3(1. Faculty of Resources & Environment, Southwest Petroleum university, Chengdu 610500, china 2. State Key laboratory for Endogenic Metal Deposit research, nanjing university, nanjing 210093, china 3. Department of Natural Resources & Technology Information, china university of Petroleum, Beijing 102249, china) Faculty of Resources & Environment Southwest Petroleum University Chengdu 610500 China State Key laboratory for Endogenic Metal Deposit research Nanjing University Nanjing 210093 China Department of Natural Resources & Technology Information China University of Petroleum Beijing 102249 China

Pyrrhotite is one of the common ore minerals in Cu-Ni sulphide deposits, but only monoclinic pyrrhotite is ferromagnetic at room temperature. X-ray and EPA analyses reveal that most pyrrhotite forming sideronitic texture in the Hongqiling Cu-Ni sulphide deposit is monoclinic, but that in the massive ore is a mixture of monoclinic and hexagonal pyrrhotites. Differential thermal and magnetic- thermogravimetric analyses of massive ore indicate a magnetic transition and heat absorption at 323℃, suggesting that this temperature is the thermomagnetic and phase transition point of pyrrhotite. For massive pyrrhotite ores heated at 400oC for 30 h and then quenched by cool water, the monoclinic pyrrhotite (mpo) transforms completely into the hexagonal pyrrhotite (hpo). However, all the pyrrhotites resulting from slow cooling of the sample in air are mpo. These results indicate that transformation between hpo and mpo depends upon the cooling rate. Therefore, massive ores in this deposit might have been formed via rapid cooling of ore melts. On the other hand, it is significant to study the effect of the ratio of the magnetite in total ores on the genesis of magmatic Cu-Ni suphide deposits.

关键词： pyrrhotite magnetite genesis of Cu-Ni sulphide deposit Hongqiling.

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LDPC码的一种循环差集构造方法

通信学报 2004年第11期25卷 112-118页

作者：何善宝赵春明姜明东南大学移动通信国家重点实验室江苏南京210096

提出了一种由组合数学中的循环差集构造LDPC码的新方法,它能产生大量的列重和行重均为恒定值的规则码,并且可以排除圈长为4的圈和减少圈长等于6的圈。利用和积译码算法通过计算机仿真验证了这种码字具有优良的特性。

关键词： LDPC码循环差集码字构造和积译码

Desulfurization in Reducing Atmosphere and AmmoniaInjection Denitrification in a Coal-Fired Fluidized Bed Combustor with Fly-Ash Recycle

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Journal of Thermal Science 1997年第1期6卷 75-79页

作者： Zhong Zhaoping Lan Jixiang Han Yongsheng Wu Xin(Thermoenergy Engineering research Institute, southeast university, nanjing 210096, china)Zheng Haiyun(nanjing Institute of Environmental Science, national Environmental Protection Agency,nanjing 210042, Chin Thermoenergy Engineering research Institute Southeast University Nanjing China nanjing Institute of Environmental Science National Environmental Protection Agency Nanjing China

With the rising of IGCC and the second generation PFBC-CC, and with the development of tech-nology of staged combustion to lower emission of NOx, the desulfurization efficiency under reducingatmosphere is raised. In this paper, with the application of the fly-ash recycle and tworstage combus-tion technologies in a fluidized bed combustor, the desulfurization test under reducing atmosphere isdescribed. Meanwllile, ammonia injection test was also conducted. Results show that desulfurizationunder reducing atmosphere has higher efficiency, and ammonia injection denitrification effect is veryperfect.

关键词： desulfurization in reducing atmosphere ammonia injection fluidized bed fly-ash recycle