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RETROFITTING AN AUTOMATIC MANUFACTURING WORKCELL FOR STUDY OF OPEN ARCHITECTURE INTEGRATION OF MECHATRONIC SYSTEMS

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Chinese Journal of Mechanical Engineering 2002年第2期15卷 149-152页

作者： Hu XudongCentre of Intergration Engineering, Zhejiang Institute of Science and Technology,hangzhou 310033, ChinaJat Pannu Cheng Harry HUniversity of California, USA Centre of Integration Engineering Zhejiang Institute of Science and Technology Hangzhou 310033 University of California USA

Research work on plug-and-play open architecture and object-orientedmechatronic system integration is described. The original controllers of two popular industrialrobot manipulators Puma 560 and IBM 7575 are completely retrofitted and integrated with a conveyorsystem to form a robot workcell. This robot workcell can be programmed to run under the Ch languageenvironment. The outline of the Ch language, and the retrofitting strategy of the robot workcellwill be described. A sample application program for simulated assembly operations of this robotworkcell will be presented to demonstrate the underlying principles of open architecture integrationof mechatronic systems under the programming paradigm of the Ch language environment.

关键词： Open architecture Objected-oriented Robot

P systems based multi-objective optimization algorithm

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Progress in Natural Science:Materials International 2007年第4期17卷 458-465页

作者： Huang Liang, He Xiongxiong, Wang Ning and Xie Yi ( National Laboratory of Industrial Control Technology, Institute of Advanced Process Control, Zhejiang University, hangzhou 310027, China Zhejiang University of Technology, hangzhou 310033, China) National Laboratory of Industrial Control Technology Institute of Advanced Process Control Zhejiang University Hangzhou 310027 China Zhejiang University of Technology Hangzhou 310033 China

Based on P systems, this paper proposes a new multi-objective optimization algorithm (PMOA). Similar to P systems, PMOA has a cell-like structure. The structure is dynamic and its membranes merge and divide at different stages. The key rule of a membrane is the communication rule which is derived from P systems. Mutation rules are important for the algorithm, which has different ranges of mutation in different membranes. The cooperation of the two rules contributes to the diversity of the population, the conquest of the muhimodality of objective function and the convergence of algorithm. Moreover, the unique structure divides the whole population into several sub populations, which decreases the computational complexity. Almost a dozen popular algorithms are compared using several test problems. Simulation results illustrate that the PMOA has the best performance. Its solutions are closer to the true Pareto-optimal front

关键词： P systems evolutionary algorithm multi-objective optimization Pareto optimality.

Synthesis and crystal structure of complex of Ce(NO_3)_3 with N-(3-methyl-pyridin-2-yl)-formimidoyl-(3-methyl-pyridin-2-yl) hydrazone

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Science China Chemistry 2004年第3期47卷 251-256页

作者： JIANG Yinzhi1,2 & HU Weixiao1 1. Department of Pharmaceutical Science, Zhejiang University of Technology, hangzhou 310032, China 2. Department of Applied Chemistry, Zhejiang Institute of Science and Technology, hangzhou 310033, China Department of Pharmaceutical Science Zhejiang University of Technology Hangzhou China Department of Applied Chemistry Zhejiang Institute of Science and Technology Hangzhou China

The reaction of 3,6-di-(3-methyl-pyridin-2-yI)-s-tetrazine (DMPTZ, II) with CeIII salt [Ce(NO3)3 · 6H2O] generates a new ligand, N-(3-methyl-pyridin-2-yl)-formimidoyl-(3-methyl-pyridin-2-yl) hydrazone (L), and forms a new complex: a mononuclear complex [Ce(L)(NO3)2 (H2O)3] · NO3 (III). Crystal data for III: space group P-1, with a = 0.7133(4) nm, b = 1.1139(2) nm, c = 1.4572(3) nm, α= 102.13(2)°, β= 99.81(3)°, γ= 91.10(3)°, Z = 2, V = 1113.6(7) nm3, μ = 2.123 mm?1 and F(000) = 630. L acts as a tri-dentate chelating ligand in III. There are 10 coordination sites around Ce3+ of III, which are respectively occupied by seven oxygen atoms (four from two nitrate anions and three from three H2O molecules) and three nitrogen atoms (all from L). The cerium atom and three chelating nitrogen atoms are coplanar. The mechanism of the metal assisted decomposition is discussed briefly.

关键词： rare earth, complex, crystal structure, synthesize, 3,6-bis (3-methyl-pyridin-2-yl)-s-tetrazine, N-(3-methyl-pyridin- 2-yl)-formimidoyl-(3-methyl-pyridin-2-yl) hydrazone.

Weighted weak type estimates for commutators of the Marcinkiewicz integrals

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Science China Mathematics 2004年第1期47卷 83-95页

作者： DING Yong, LU Shanzhen & ZHANG PuDepartment of Mathematics, Beijing Normal University, Beijing 100875, China Department of Information and Computing Science, Zhejiang Institute of Science and Technology, hangzhou 310033, China Department of Mathematics Beijing Normal University Beijing China Department of Information and Computing Science Zhejiang Institute of Science and Technology Hangzhou China

In this paper the authors give the weighted weak LlogL type estimates for a class of the higher order commutator generated by the Marcinkiewicz integral and a BMO function. In addition, the weak type norm inequalities... 详细信息

关键词： Marcinkiewicz integral, commutator, Ap weight, weak type estimate.

The Role of Propeptide in the Refolding of Human Group IB Phospholipase A2

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Acta Biochimica et Biophysica Sinica 2004年第9期36卷 583-588页

作者： Hong-Qiang CHENG1 and Gen-Jun XU1,2*Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China 2College of Life Science, Zhejiang University of Sciences, hangzhou 310033, China Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of SciencesShanghai 200031 China College of Life Science Zhejiang University of SciencesHangzhou 310033 China

Human group IB phospholipase A2 (IB-PLA2) and its zymogen (proIB-PLA2) were purified from E. coli. Refolding was carried out by diluting the denatured forms of both IB-PLA2 and proIB-PLA2 with renaturation buffer in which the disulfide bonds were completely reduced. The refolding yield of proIB-PLA2 was increased by about 50% over that of the mature enzyme. The refolding of IB-PLA2 usually produced aggregates under normal conditions, as determined by light scattering. In addition, the unfolding experiments showed that the mature enzyme was more stable than the proenzyme toward denaturants in the presence of DTT. Results suggested that the N-terminal sequence rather than its conformation of human proIB-PLA2 played an important role in the refolding process.

关键词： human group IB phospholipase A2 (IB-PLA2) refolding first disulfide bond propeptide

Dynamic behavior of polymer surface and the time dependence of contact angle

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Science China Chemistry 2005年第6期48卷 553-559页

作者： WANG Xinping1, CHEN Zhifang1 & SHEN Zhiquan2 1. Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Applied Chemistry, Zhejiang Institute of Science and Technology, hangzhou 310033, China 2. Department of Polymer Science and Engineering, Zhejiang University, hangzhou 310027, China Department of Applied Chemistry Zhejiang Institute of Science and Technology Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry Hangzhou China Department of Polymer Science and Engineering Zhejiang University Hangzhou China

Time-dependent contact angles were measured by depositing sessile drops of wa-ter on the polymer surfaces and monitoring the drop shape as a function of time. It was found that contact angles decreased sharply with contact time and the equilibrium contact angle was finally attained after a certain time. Values of starting (θ s) and equilibrium contact angles (θ e) obtained by the sessile drop method depend on polymer properties. The Wilhelmy plate technique was used to measure advancing and receding contact angles. The variations of starting (θ s) and equilibrium contact angles (θ e), advancing (θ a) and receding contact angles (θ r) have been studied on the oxidized surface of polymers containing polybutadiene block to explore the cause of time-dependence in contact angle measurement and the meaning of θ s and θ e. The results showed the linear relationships between starting (θ s) and advancing contact angles (θ a), the equilibrium (θ e) and receding contact angles (θ r). The similar relationship was also established between the contact angle hysteresis (θ a?θ r) and differences (θ s ?θ e) in starting contact angles and equilibrium contact angles. Therefore, time-dependence in contact angle measurement was mainly attributed to the surface reconstruction when water drops were deposited on polymer surfaces. The starting contact angle was contributed by the hydrophobic component on polymer surface and the equilibrium contact angle mainly by the hydrophilic component of polymer. These results not only demonstrated the interdependency between two contact angle measurements, the sessile drop method and the Wilhelmy plate technique, but also provided the experimental evidence to explain the cause of time-dependent contact angle. This may also provide a new method to study dynamic behavior of polymer surface.

关键词： contact angle, surface dynamic behavior, polymer surface, dynamic contact angle, time-dependence.

The Short-time Photodissociation Dynamics of the Charge-Transfer Absorption of I2-benzene Complex in benzene solution

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The Short-time Photodissociation Dynamics of the Charge-Tran...

对图书馆网络系统中Windows终端取代PC的分析

第九届全国化学动力学会议

作者： Yan Shi and Xuming Zheng Department of Applied Chemistry,Zhejiang Sci-Tech University, hangzhou 310033

＜正＞Since Benesi and Hildebrand discovered the existence of I2-benzene complex from the UV-VIS spectrum of iodine dissolved in benzene solvent, there has been considerable experimental and theoretical studies in the...

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图书情报工作 2004年第1期48卷 78-80,118页

作者：陈立华浙江工程学院图书馆杭州310033

概述Windows终端的兴起与发展,通过对Windows终端与PC的比较,着重分析Windows终端的优势和Windows终端步入图书馆网络系统的可行性与必然性。

关键词：图书馆网络系统 Windows终端 PC Client/Server结构

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民国时期的缎类丝织物

丝绸 2004年第11期41卷 49-50,52页

作者：徐铮浙江理工大学材料与纺织学院浙江杭州310033

缎类丝织物是中国丝绸的一个重要品种类别,也是民国时期应用最为广泛的品种之一。民国年间,由于新原料的采用和织机的改进,大量新型缎类织物被开发出来,而传统的缎类织物在新产品的冲击下,虽市场不断丢失,但也出现了一些创新。

关键词：丝织物织机丝绸新原料新产品改进中国品种类别市场创新