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Separation　and　Determination　of　Bases　by　Capillary　Zone　Electrophoresis

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Chemical Research in Chinese Universities 1997年第3期13卷 215-220页

作者： ZHAO Tao , LIU Qi-ping, CHENG Jie-ke (Department of Chemistry, wuhan university , wuhan , 43007.) wuhan UNIV DEPT CHEMWUHAN 430072PEOPLES R CHINA

The present paper covers the separation and determination of cytosine , 9-N-di- hydroxypropyltheophylline , theobromine , adenine , guanine , uracil , theophylline , 1-hydroxyethyl-5-fluorouracil , xanthine , uric acid , 6-mercaptopurine , 5-fluo- rouracil and 1 -propionyloxyuracil by capillary zone electrophoresis. In an uncoated silica capillary(7. cm ×7. μm i. d. effective length 63 cm) , thirteen bases could be separated within 1 1 min under the optimum conditions : 0. 01 mol/L(pH 10. 0) bo- rate buffer, 40℃ , 15 kV, 260 nm and 2 s load. Efficiencies up to 3. 1 ×105 theoreti- cal plates (4. 9 ×105 plates/m) were achieved.

关键词： Capillary zone electrophoresis Base Electrophoresis

Synthesis of Polymer-Bonded Carbonyl Ruthenium (Ⅱ) and Osmium (Ⅱ) Porphyrins

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Chinese Chemical Letters 1999年第1期10卷 77-78页

作者： Zao Ying LI Cong LI Jiang Lin LIANG Kun YAN(Department of Chemistry, wuhan university, wuhan 43007.) Department of Chemistry Wuhan University Wuhan 430072 China

The reactions of 5- (p-hydroxyphenyl)-10, 15, 20-tris (p-methoxyphenyl) porphyrin(H2Por) 1 respectively with triruthenium dodecacarbonyl [Ru3 (CO)12] and triosmiumdodecacarbonyl [Os3 (CO)12] under N2 gave complexes 2 ... 详细信息

关键词： Polymer-bonded metal porphyrin synthesis

A Heuristic Algorithm for QoS Multicast Routing

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Journal of Systems Engineering and Electronics 2002年第4期13卷 73-78页

作者： Li Layuan & Li Chunlin Department of Computer Science, wuhan university of Technology, wuhan 430063, P. R. China Department of Computer Science Wuhan University of Technology Wuhan 430063 P. R. China

In recent years, QoS multicast routing has continued to be a very important research topic in the areas of networks. This paper presents a heuristic algorithm for the QoS multicast routing (HAQMR). This heuristic algorithm deals with delay and bandwidth constraints and has low cost. The HAQMR attempts to significantly reduce the overhead for constructing a multicast tree, the proof for correctness of the HAQMR is given, and the performance of the HAQMR is evaluated by simulations. The study shows that HAQMR provides an available approach to QoS multicast routing.

关键词： Heuristic QoS Multicast QoS constraints QoS routing.

Refrigerant Control Strategies for Residential Air-Conditioning and Heat-Pump System

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湖南大学学报（自然科学版） 2009年第S1期36卷 91-95页

作者： SU Shun-yu,ZHANG Chun-zhi,CHEN Jian(College of Urban Construction,wuhan university of Science and Technology,wuhan,Hubei 43007.,China) College of Urban Construction Wuhan University of Science and Technology Wuhan 430070 China

This paper simulated the optimal refrigerant charge inventory of a refrigeration system in air-conditioning operation and heat-pump operation respectively,and studied the refrigerant control strategies in this *** void fraction in two-phase fluid region was calculated by Harms *** based on distributed parameter model and Harms model,the refrigerant charge inventory in condenser and evaporator were calculated and analyzed in air-conditioning conditions and heat-pump conditions,*** calculating results of different refrigerant mass between refrigeration and heating conditions indicate that the optimal refrigerant charge inventory in heat-pump conditions is lower than that in air-conditioning *** avoid the decrease of COP due to the surplus refrigerant in heating conditions,we introduced the liquid reservoir control method and associate capillary control *** of them could increase the heating capacity of the air-source heat *** difference of optimal refrigerant charge inventory in air-conditioning and heat-pump system can be controlled by the liquid reservoir or the associate capillary.

关键词： air-source heat pump control strategy distributed parameter model charge inventory

Exploring non-equilibrium statistical ensembles

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Science Bulletin 2011年第34期56卷 3654-3660页

作者： BI Qiao & LIU Jie Department of Physics, School of Science, wuhan university of Technology, wuhan 43007., China Department of Physics School of Science Wuhan University of Technology

Since Gibbs synthesized a general equilibrium statistical ensemble theory, generalizing the Gibbsian theory to non-equilibrium phenomena has been a dream for some theorists. However, the status of the theory for the non-equilibrium ensemble formalism is not as well established as the Gibbsian ensemble theory. In this work, we explore the formalism behind the non-equilibrium statistical ensemble theory based on the sub-dynamic kinetic equation originating from the Brussels-Austin school and developed further by others. The key is establishing a similarity transformation between Gibbsian ensembles and the sub-dynamic ensemble. Using this way, we study a spin-Boson model with strong coupling. A reduced density operator for the canonical ensemble can be easily obtained and the relevant decoherence-free property is revealed.

关键词： subdynamics statistical ensemble non-equilibrium statistical physics

Edge Crossing Minimization Algorithm for Hierarchical Graphs Based on Genetic Algorithms

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wuhan university Journal of Natural Sciences 2001年第Z1期6卷 555-559页

作者： Shen Wei xiang, Huang Jing wei College of Computer, wuhan university, wuhan 43007., China College of Computer Wuhan University Wuhan 430072 China

We present an edge crossing minimization algorithm for hierarchical graphs based on genetic algorithms, and comparing it with some heuristic algorithms. The proposed algorithm is more efficient and has the following advantages: the frame of the algorithms is unified, the method is simple, and its implementation and revision are easy.

关键词： hierarchical graph edge crossing genetic algorithms

Pinning control of general complex dynamical networks with optimization

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Science China(Information Sciences) 2010年第4期53卷 813-822页

作者： ZHAO JunChan, LU JunAn* & WU XiaoQun School of Mathematics and Statistics, wuhan university, wuhan 43007., China 1. School of Mathematics and Statistics Wuhan University Wuhan 430072 China

This paper addresses optimal pinning control of general complex dynamical networks. A pinning scheme with linear feedback is proposed to globally exponentially stabilize a network onto a homogeneous state. In particular, we answer an important and fundamental question about pinning control: how to select an optimal combination between the number of pinned nodes and the feedback control gain? Three illustrative examples are provided to show the effectiveness of the proposed technique.

关键词： complex dynamical networks optimization pinning control linear feedback

Preparation and Characterization of Chitosan/Carboxymethylated Konjac Glucomannan Blend Films

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wuhan university Journal of Natural Sciences 2002年第1期7卷 107-112页

作者： Zheng Hua 1 , Du Yu-min 2 1. Department of Chemical Engineering, wuhan university of Technology, wuhan 43007., Hubei, China 2. College of Chemistry and Molecular Sciences, wuhan university, wuhan 43007., Hubei, China wuhan university of Technology Department of Chemical Engineering Wuhan Hubei China (GRID:grid.162110.5) (ISNI:***) wuhan university College of Chemistry and Molecular Sciences Wuhan Hubei China (GRID:grid.49470.3e) (ISNI:***)

In order to improve the mechanical and water swelling properties of the chitosan (CS) film, a series of transparent films were prepared by blending 2%(weight) chitosan acetic acid solution with 1.5%(weight) carboxymethylated konjac glucomannan (CMKGM) aqueous solution according to predetermined ratio and drying at 30°C. The morphological structure, miscibility, thermal stability, mechanical properies, and swelling capacity of the blend films were studied by infrared (IR), X-ray diffraction (XRD), differential thermal analysis (DTA), scanning electron micrograph (SEM), and measurements of the mechanical properties and swelling properties. The results demonstrated that there was strong interaction and good miscibility between CS and CMKGM resulted from intermolecular hydrogen bonding and electrostatic force. The mechanical properties in dry state and wet state, thermostability, and water swelling properties of the blend films were obviously improved. The best values of the tensile strength in the dry and wet state achieved 89 MPa and 49 MPa, respectively, when the CMKGM content was 30%(weight). The CS/ CMKGM blend films provided promising biomedical applications.

关键词： Key words chitosan carboxymethylated konjac glucomannan blend films structure characterization

Weak Orlicz space and its applications to the martingale theory

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Science China Mathematics 2010年第4期53卷 905-916页

作者： LIU PeiDe,HOU YouLiang & WANG MaoFa School of Mathematics and Statistics,wuhan university,wuhan 43007.,China 1. School of Mathematics and Statistics Wuhan University Wuhan 430072 China

In this paper,the weak Orlicz space wL Φ is introduced and its applications to the martingale theory are *** particular,a series of martingale inequalities including the maximal function inequality in weak Orlicz spaces are established;the relationships between these spaces are ***,the boundedness of several sublinear operators from one weak Orlicz space to another is proved;their vector-valued analogues are also considered.

关键词： weak Orlicz space maximal function martingale space martingale inequality