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Evaluation of Fabric Pilling Using Light Projection and Image Analysis Techniques

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Journal of China Textile University(English Edition) 2000年第4期17卷 80-86页

作者：徐增波陆凯黄秀宝 coll. of Textiles China Textile Univ. Shanghai 200051 China

A new instrument based on light projection and image analysis techniques for assessing fabric pilling is presented. This system can automatically detect the pills from the successive sections of the fabric surface, which can make up for the limitation of both the gray level image -analysis techniques and laser triangulab’on techniques. The test of a large number of worsted wool fabric samples shows that it can objectively characterize the degree of pilling by using fuzzy sets and has good accordance with human visual inspection.

关键词： Fabric pilling Light projection Image analysis Fuzzy sets

Blind source separation of ship-radiated noise based on generalized Gaussian model

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Journal of Systems Engineering and Electronics 2006年第2期17卷 321-325页

作者： Kong Wei Yang Bin Information Engineering coll. of Shanghai Maritime Univ. Shanghai 200135 China

When the distribution of the sources cannot be estimated accurately, the ICA algorithms failed to separate the mixtures blindly. The generalized Gaussian model （GGM） is presented in ICA algorithm since it can model non- Ganssian statistical structure of different source signals easily. By inferring only one parameter, a wide class of statistical distributions can be characterized. By using maximum likelihood （ML） approach and natural gradient descent, the learning rules of blind source separation （BSS） based on GGM are presented. The experiment of the ship-radiated noise demonstrates that the GGM can model the distributions of the ship-radiated noise and sea noise efficiently, and the learning rules based on GGM gives more successful separation results after comparing it with several conventional methods such as high order cumnlants and Gaussian mixture density function.

关键词： blind source separation (BSS) independent component analysis (ICA) generalized Gaussian model(GGM) maximum likelihood (ML).

Study on New Dynamical Model of Sequencing Batch Reactor (SBR) and Its Simulation

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Journal of China Textile University(English Edition) 2000年第4期17卷 51-56页

作者：甘树应刘振鸿杨青陈季华 coll. of Environment China Textile Univ. Shanghai 200051 China

Sequencing Batch Reactor (SBR) was used for the wastewater treatment. A new dynamical model was put forward and developed. The substrate in influent was divided into soluble COD and insoluble COD. The soluble COD is further subdivided into EBS, DBS and IOM. By dynamical simulation, many advantages appear in the new model. Furthermore, the proper ttf/tc, F/M and sludge age were suggested for the design and operation of SBR system.

关键词： SBR Dynamical Simulation Model tfltc F/M Sludge age

Structural heredity between Al5Ti1B and AlTi, AlB master alloys

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中国有色金属学会会刊：英文版 1999年第4期9卷 806-809页

作者：刘相法边秀房亓效刚马家骥 coll. of Mat. Sci. and Engineering Shandong University of Technology Jinan 250061 China

Al5Ti1B master alloy was produced by two-step method. Experimental results show that the structure of Al5TilB master alloy depends on that of AlTi and AlB master alloys, the morphologies of TiAl3 depend on AlTi master alloy and the boride phases depend on AlB master alloy. There are remarkable structure heredity between Al5Ti1B master alloy and AlTi, AlB master alloys. Theoretical analyses show that AlTi and Al-B master alloys can change the melt structure of Al5Ti1B master alloy, then affect the solid structure of the master alloy.

关键词： Al5Ti1B master alloy AlTi and AlB master alloys grain refinement

LMI approach to reliable H_∞ control of linear systems

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Journal of Systems Engineering and Electronics 2006年第2期17卷 381-386页

作者： Yao Bo Wang Fuzhong coll. of mathematics and Systems Science Shenyang Normal Univ. Shenyang 110034 P. R. China Shenyang Inst. of Engineering Shenyang 110036 P. R. China

The reliable design problem for linear systems is concerned with. A more practical model of actuator faults than outage is considered. An LMI approach of designing reliable controller is presented for the case of actuator faults that can be modeled by a scaling factor. The resulting control systems are reliable in that they provide guaranteed asymptotic stability and H∞ performance when some control component （actuator） faults occur. A numerical example is also given to illustrate the design procedure and their effectiveness. Furthermore, the optimal standard controller and the optimal reliable controller are compared to show the necessity of reliable control.

关键词： reliable control sensor fault actuator fault LMI.

Aldol Condensation of Acetylferrocene under Ultrasound

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Chinese Chemical Letters 2003年第7期14卷 663-666页

作者： Shun Jun JI, Zhi Liang SHEN, Shun Yi WANG coll.ge of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006 coll. of Chem./Chemical Engineering Suzhou University Suzhou 215006 China

Aldol condensation of acetylferrocene with aromatic aldehydes afforded ferroceny- lenones in 76%-92% yields under ultrasound at room temperature.

关键词： Acetylferrocene aldol condensation ferrocenylenone ultrasonic irradiation.

SIMULATION OF 3-D FLOW AROUND A VAN-BODY TRUCK WITH RNG K-ε TURBULENCE MODEL

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Journal of Hydrodynamics 2001年第4期13卷 98-101页

作者： Du, Guang-Sheng Wang, De-Chang Lei, Li Zhou, Lian-Di coll. of Water Conservancy Wuhan Univ. Ji'nan 250061 China

It is proved that the calculation precision of the outside flow field of the van-body truck using PNG k-Ε turbulence model is higher than that using standard k-Ε turbulence model by means of experiments. The calculation results of the outside flow field of a certain domestic van-body truck are given. And by analyzing and comparing the different tail flow plots, the tail flow structural characteristics and the relationship between the position and the intensity of the tail vortex and the aerodynamic drag is obtained, which can direct the design of the outside aerodynamic shape of the van-body truck.

关键词： Computer simulation Drag Mathematical models Turbulent flow

A VARIATIONAL MODEL FOR 2-D MICROPOLAR BLOOD FLOW

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Journal of Hydrodynamics 2003年第3期15卷 119-121页

作者： He Ji-huan coll.ge of Science, Shanghai Donghua University, Shanghai 200051, China, coll. of Sci. Shanghai Donghua Univ. Shanghai 200051 China

The micropolar fluid model is an essential generalization of thewell-established Navier-Stokes model in the sense that it takes into account the microstructure ofthe fluid. This paper is devolted to establishing a var... 详细信息

关键词： micropolar flow blood flow variational principle semi-inverse method

Synthesis of 2, 6-(substituded)pyridine Derivatives Using Amide and Imine Groups

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Chinese Chemical Letters 2003年第6期14卷 572-574页

作者： Mei Ying LI, Pei Zhi HU*, Wan Ren ZHU, Kuo Xi XU coll.ge of Chemistry and Molecular Science, Wuhan University, Wuhan 430072 coll. of Chem. and Molecular Science Wuhan University Wuhan 430072 China

A new wo-armed?acyclic diamide Ia 2, 6-bis(1-ethanecarbozamido-2-amino)pyridine, and a new series of aromatic aldehyde schiff bases containing pyridine ring and amide bridge, IIa-f, were prepared. The compounds were characterized by elemental analysis, IR, 1HNMR and MS. The bioactivity half inhibitory concentration C1/2 is given.

关键词： Aromatic aldehyde Schiff bases pyridine amide bridge.