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SYNTHESIS AND BIOTECHNOLOGICAL APPLICATIONS OF VINYL POLYMERINORGANIC HYBRID AND MESOPOROUS MATERIALS

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Chinese Journal of Polymer science 2000年第1期18卷 1-7页

作者： Yen Wei Kun-yuan Qiu department of chemistry, Drexel {2., Philadelphia, Pennsylvania 19104, USA department of Polymer science and engineering, Peking {2., Beijing 100871, China Drexel university 美国北京大学高分子科学与工程系北京

We describe the sol-gel synthesis of a new family of organic-inorganic hybrid materials, in which various vinyl polymers are covalently bonded to and uniformly distributed in inorganic oxide matrices. The materials can be tailored to have both good toughness and hardness while maintaining excellent optical transparency. Doping the sol-gel metal oxides with optically active compounds such as D-glucose results in new optical rotatory composite materials. Removal of the dopant compounds from the composites affords mesoporous oxide materials; which represents a new, nonsurfactant-templated route to mesoporous molecular sieves. We have successfully immobilized a series of enzymes and other bioactive agents in mesoporous materials. Catalytical activities of the enzyme encapsulated in mesoporous materials were found to be much higher than those encapsulated in microporous materials.

关键词： vinyl polymer-inorganic hybrid materials mesoporous materials sol-gel process biotech-nological applications

Prediction of Tumor Outcome Based on Gene Expression Data

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Wuhan university Journal of Natural sciences 2004年第2期9卷 177-182页

作者： Liu Juan 1,2. Hitoshi Iba 3.1. School of Computer, Wuhan university, Wuhan 43.072. Hubei, China 2. State Key Laboratory of Software engineering, Wuhan 43.072. Hubei, China 3. {2. of Frontier Informatics, university of Tokyo, Tokyo 113.8656, Japan School of Computer Wuhan University Wuhan Hubei China State Key Laboratory of Software engineering Wuhan Hubei China department of Frontier Informatics University of Tokyo Tokyo Japan

Gene expression microarray data can be used to classify tumor types. We proposed a new procedure to classify human tumor samples based on microarray gene expressions by using a hybrid supervised learning method called MOEA+WV (Multi-Objective Evolutionary Algorithm+Weighted Voting). MOEA is used to search for a relatively few subsets of informative genes from the high-dimensional gene space, and WV is used as a classification tool. This new method has been applied to predicate the subtypes of lymphoma and outcomes of medulloblastoma. The results are relatively accurate and meaningful compared to those from other methods. Key words bioinformatics - tumor classification - Pareto optimization - MOEA CLC number Q 786 - TP 181 Foundation item: Supported by the National Natural science Foundation of China (603.1009), the Foundation of Young Scholars of Ministry of Education of China (150118) and Chenguang Project of Wuhan City (2.112.009).Biography: Liu Juan (1970-), female, Associate Professor, Postdoctoral, research direction: bioinformatics, data mining, machine learning.

关键词： bioinformatics tumor classification Pareto optimization MOEA

s-ordering operator expansions of quantum-mechanical fundamental representations and their applications

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science China(Physics,Mechanics & Astronomy) 2011年第12期54卷 2150-2154页

作者： FAN HongYi 1,3., XU YeJun 2.& YUAN HongChun 3.4 1 department of Materials science and {2., {3. of science and Technology of China, Hefei 2.002., China 2.department of Physics Electronic and {2., Chizhou {3., Chizhou 2.7000, China 3.department of Physics, Shanghai Jiao Tong {3., Shanghai 2.003., China 4 College of Optoelectronic {2., Changzhou Institute of Technology, Changzhou 2.3.02. China department of Materials science and {2. University of Science and Technology of China Hefei China department of Physics Shanghai Jiao Tong University Shanghai China department of Physics Electronic and engineering Chizhou University Chizhou China College of Optoelectronic engineering Changzhou Institute of Technology Changzhou China

We show that the quantum-mechanical fundamental representations, say, the coordinate representation, the coherent state representation, the Fan-Klauder entangled state representation can be recast into s-ordering operator expansion, which is elegant in form and has many applications in deriving new operator identities. This demonstrates that Dirac's symbolic method can be merged into Newton-Leibniz integration theory in a broad way.

关键词： s-ordering operator expansion operator identities quantum mechanical representation

SYNTHESIS AND PROPERTIES OF NEW MESOGEN-JACKETED LIQUID CRYSTALLINE POLYMERS

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Chinese Journal of Polymer science 2000年第2期18卷 139-148页

作者： Qi-ding Mi Qi-feng Zhou department of Polymer science & {2., College of {3. Peking university, Beijing 100871, China 北京大学北京

Some new mesogen-jacketed liquid crystalline polymers (MJLCP) with polymer backbones, spacers, and mesogenic units of different structures were synthesized by radical polymerization. The mesomorphic behavior of these polymers was examined using differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). Their liquid crystallinity is influenced by the variation of polymer backbone, spacer, mesogenic unit and its terminal groups. The results show that 1) a more flexible polymer main-chain is more favorable to the formation of a liquid crystal phase, while 2. a flexible spacer will decrease the 'Jacket Effect' and the liquid crystallinity and 3. a subtle modification of the terminal groups on the mesogenic unit may also have a significant influence on properties of the polymers.

关键词： mesogen-jacketed liquid crystalline polymers polymer backbones spacers mesogenic units liquid crystallinity

Applications of functionalized ionic liquids

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science China chemistry 2006年第5期49卷 385-401页

作者： LI Xuehui1, ZHAO Dongbin2.3. FEI Zhaofu2.& WANG Lefu1 1. department of Chemical {3., Guangdong Provincial Laboratory of Green Chemical Technology, South China Uni-versity of Technology, Guangzhou 510641, China 2. Swiss Federal Institute of Technology, Lausanne, EPFL, CH-1015 Lausanne, Switzerland 3. PKU Green {2. Center, Beijing National Laboratory for Molecular {3.s, College of {2. and Molecular {3., Peking university, Beijing 100871, China department of Chemical engineering Guangdong Provincial Laboratory of Green Chemical Technology South China University of Technology Guangzhou China Lausanne EPFL Swiss Federal Institute of Technology Lausanne Switzerland PKU Green chemistry Center Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing China

Recent developments of the synthesis and applications of functionalized ionic liquids (including dual-functionalized ionic liquids) have been highlighted in this review. Ionic liquids are at-tracting attention as alternative solvents in green chemistry, but as more functionalized ILs are pre-pared, a greater number of applications in increasingly diverse fields are found.

关键词： ionic liquids functionalized ionic liquids dual-functionallzed ionicliquids reaction media asymmetric synthesis nano-materials porous materials lubricants flue-gas desulfurization oil desul-furization

Regioselective aminohalogenation of β-nitrostyrenes using NCS and NBS as nitrogen/halogen sources

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science China chemistry 2010年第1期53卷 140-146页

作者： ZHI SanJun1,2.SUN Hao2.LIN Chen2.ZHANG GuangQian2.LI GuiGen4 & PAN Yi2.3.1 department of chemistry,Huaiyin Normal {2.,Huai’an 2.1003.China 2.School of chemistry and Chemical engineering,Nanjing {2.,Nanjing 2.0093.China 3.State Key Lab of Coordination chemistry,Nanjing {2.,Nanjing 2.0093.China 4 department of chemistry and Biochemistry,Texas Tech {2.,Lubbock,Texas 79409-1061,USA department of chemistry Huaiyin Normal University Huai’an China School of chemistry and Chemical engineering Nanjing University Nanjing China department of chemistry and Biochemistry Texas Tech University Lubbock USA State Key Lab of Coordination chemistry Nanjing University Nanjing China

Aminohalogenation reaction of β-nitrostyrenes with N-halosuccinimides(N-chloro and N-bromosuccinimides) has been successfully conducted by using nickel acetate as a catalyst in the presence of potassium carbonate and succinimide as *** reaction was easily performed at room temperature under nitrogen gas protection to give dihalorinaed haloamino products in good to excellent yields(60%-98%).The structure has been confirmed by X-ray crystal structure analysis.

关键词： aminohalogenation vicinal haloamines β-nitrostyrenes NBS NCS

Construction and application of formal ontology for mine

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中国有色金属学会会刊：英文版 2011年第S3期21卷 577-582页

作者： CHENG Gang 1, 2. ZHANG Yin-ling1, 2. WANG Fei 1 ,2. ZHANG Zhen-hui 3. GUO Yu-xiang1, 2.1. Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping, Henan Polytechnic university, Jiaozuo 454003. China 2. School of Surveying and land Information engineering, Henan Polytechnic university, Jiaozuo 454003. China 3. Qingdao Branch of Naval Aeronautical engineering Institute, Qingdao 2.6041, China Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping Henan Polytechnic University Jiaozuo 454003 China School of Surveying and land Information engineering Henan Polytechnic University Jiaozuo 454003 China Qingdao Branch of Naval Aeronautical engineering Institute Qingdao 266041 China

Digital mine is the only way for the development of mining industry in China. Due to lack of appropriate standards and norms, and different awareness in the field of digital mine among academia and industry insiders, the meaning for digital mine is still unclear. Starting from the nature of mining and removing of views of specialized fields, this paper constructs formal ontology for digital mine and proposes the four levels for it. The ontology clarifies the concept world for digital mine, defines the meaning of concepts and relations clearly, provides a reference for the standard construction for digital mine and provides a unified semantic framework for the integration of heterogeneous mine data. Meanwhile, it can provide formal reasoning knowledge for expert system of digital mine and improve the intelligence and automation while the machine automatically interpreting and processing mine spatial data.

关键词： Digital mine formalization ontology concept world semantic share

A new family of windows——convolution windows and their applications

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science China(Technological sciences) 2005年第4期48卷 468-480页

作者： ZHANG Jieqiu1,2. LIANG Changhong1 & CHEN Yanpu3.1. department of Applied Math. & Phys., College of science, Airforce {2. {3., Xi’an 710051, China 2. National Key Laboratory of Antennas and Microwave Technology, Xidian {3., Xi’an 710071, China 3. Computer Center, Xi’an Communication College, Xi’an 710106, China department of Applied Math. & Phys. College of Science Airforce Engineering University Xi’an China National Key Laboratory of Antennas and Microwave Technology Xidian University Xi’an China Computer Center Xi’an Communication College Xi’an China

A new family of windows is constructed by convolutions via a few rectangular windows with same time width and is thus referred to as convolution windows. The expressions of the second-order up to the eighth-order convolution windows in both the time and frequency domains are derived. Their applications in high accuracy harmonic analysis of periodic signals are investigated. Comparisons between the proposed windows and some known windows with the same width shows that, when the synchronous deviation of data sampling is slight, the proposed ones have the least effect of spectral leakage. Therefore, the new windows are well suited for high accuracy harmonic analysis and parameter estimation for periodic signals. The error analysis and computer simulations show that the estimation errors, corresponding to frequency, amplitude and phase of every harmonic component of a signal, are proportional to the pth power of the relative frequency deviation in case of the pth-order convolution window is applied to windowing signal of approximately p cycles. By introducing real time adjustment in sampling interval, the proposed algorithm can adaptively trace signal frequency and lead to less sampling synchronous deviation. The proposed approach has the advantages of easy implementation and high measure precision and can be used in harmonic analysis of quasi-periodic signals whose fundamental frequency drifts slowly with time.

关键词： signal processing harmonic analysis window function convolution window synchronous error spoctral leakage

Thermodynamic properties of under-cooled silver melts

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science China(Physics,Mechanics & Astronomy) 2010年第1期53卷 76-80页

作者： ZHU YuYing 1 , LI Qiang 1,2.3. WANG Ge 1 , JING Qin 2., WANG Xu 1 , GAO Ying 3.& GAO JingNa 3.1 department of Mechanical {3., Yanshan {2., Qinhuangdao 066004, China 2.Key Laboratory of Metastable Materials {3. & Technology, Yanshan {2., Qinhuangdao 066004, China 3.department of Materials {3. & {3., Hebei {2. of {3. and Technology, Shijiazhuang 050018, China department of Mechanical engineering Yanshan University Qinhuangdao China Key Laboratory of Metastable Materials science & Technology Yanshan University Qinhuangdao China department of Materials science & {2. Hebei University of Science and Technology Shijiazhuang China

Differential scanning calorimeter technique combined with the traditional fluxing treatment was used to investigate the specific heat and related thermodynamic properties of under-cooled pure silver melts. The specific heat of the under-cooled melt showed a linear dependence on the temperature in the range of the obtained under-cooling from 0 to 198 K. The related thermodynamic properties of silver, such as the entropy change, the enthalpy change and the Gibbs free energy difference between the under-cooled melt and the solid phase, were derived from the measured specific heat. The relations between the temperature and the thermal diffusion or the thermal conductivity of the under-cooled melt were analyzed respectively.

关键词： under-cooled silver melts specific heat thermodynamic properties