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IEEE/CAA Journal of Automatica Sinica 2019年第4期6卷 1074-1080页

作者： Bowen Hou Zhangming He Haiyin Zhou Jiongqi Wang the college of Liberal Arts and Science National University of Defense TechnologyChangsha 410072China Beijing institute of Control engineering China Academy of Space TechnologyBeijing 100080China

As an important sensor in the navigation systems,star sensors and the gyro play important roles in spacecraft attitude determination *** environmental factors are the main sources of error in attitude *** error influence of different benchmarks and the disintegration mode between the star sensor and the gyro is analyzed in *** integrated design of the star sensor and the gyro on the same benchmark can effectively avoid the error influence and improves the spacecraft attitude determination *** results indicate that when the stars sensor optical axis vectors overlap the reference coordinate axis of the gyro in the same benchmark,the attitude determination accuracy improves.

关键词： Accuracy analysis attitude determination gyro integrated design same benchmark star sensor

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 engineering, 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 Chemistry Center, Beijing National Laboratory for Molecular Sciences, college of Chemistry and Molecular engineering, Peking University, Beijing 100871, china 1. Department of Chemical engineering Guangdong Provincial Laboratory of Green Chemical Technology South China University of Technology Guangzhou 510641 China 2. Lausanne EPFL Swiss Federal Institute of Technology CH-1015 Lausanne Switzerland 3. PKU Green Chemistry Center Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing 100871 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

THE VOID FRACTION DISTRIBUTION IN TWO-DIMENSIONAL GAS-LIQUID TWO PHASE FLOW USING IMAGE PROCESS METHOD

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Journal of Hydrodynamics 2006年第2期18卷 127-134页

作者： ZHAO Ke-yu CHENG Wen LIAO Wei-li ZHOU Xiao-de college of Water Resource and Architectural engineering Northwest Agriculture and Forestry University Xi＇an 712100 China Environment Research institute Xi＇ an University of Technology Xi＇an 710048 China

An image processing method for measuring the instantaneous two-dimensional （2D） local void fraction at high bubble number density was proposed. It was based on computing a correlation between the locally averaged brightness of the bubble plume images and the real void fraction. The method was tested using the 2D distribution of local void fraction from visualized image, where a correlation between the locally averaged brightness and the projection void fraction was derived by introducing an ideal of overlapping probability of the bubble-images under various conditions. This research was used to study the behavior of the bubbly flows with aspect ratio of 1.0,1.5, and 2.0. The present method was applied to the instantaneous measurement. The void fraction for bubble plumes of three different aspect ratios with three different bubble generating flow rates were measured for the clarification of the effect of the bubble on the behavior of the bubbly flows. Dependency of the void fraction on the gas flow rate was measured and compared to other results from the literature. In the range of our experiments, it was observed that not only does an aspect ratio of the tank affect the structure of the plume, but also the gas flow rate in the tank affects the structure of the plume.

关键词： local void fraction gas-liquid two-phase flow,brightness aspect ratio the projection void fraction

Effect of CO_2 laser sclerectomy with iridectomy on ocular hypertension in rabbits

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International Journal of Ophthalmology(English edition) 2011年第1期4卷 30-32页

作者： Zhi-Xiao Xue 1,3,Ying-Xin Li 2,3,Yan-Shan Xu 4,Jiu-Min Yang 1 1 Laser Medicine Laboratory of Tianjin Medical University,Tianjin 300070,china 2 Laser Medicine Laboratory,Biomedical engineering institute of Chinese Academy of Medical Sciences & Peking Union Medical college,Tianjin 300192,china 3 Laser Medicine technology engineering Center of Tianjin,Tianjin 300192,china 4 Eye Center of Tianjin Medical University,Tianjin 300384,china Laser Medicine Laboratory of Tianjin Medical University Tianjin 300070 China Laser Medicine Laboratory Biomedical Engineering Institute of Chinese Academy of Medical Sciences & Peking Union Medical College Tianjin 300192 China Laser Medicine technology engineering Center of Tianjin Tianjin 300192 China Eye Center of Tianjin Medical University Tianjin 300384 China

AIM:To evaluate the efficiency and safety of an optimized CO2 Laser glaucoma surgery system for laser sclerectomy with ***:Rabbit trials were performed to evaluate the efficiency and ***:IOP was significantly decreased in laser group compared with trabeculectomy group(P<0.05) from 7th postoperative day to 60th *** with trabeculectomy group,histopathology studies confirmed fewer complications and better effects were found in laser ***:CO2 laser sclerectomy with iridectomy is effective and safe in terms of IOP lowering.

关键词： CO2 laser glaucoma sclerectomy with irid-ectomy intraocular pressure histopathological examination

Repetitive learning control of nonlinear systems over finite intervals

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Science china(Information Sciences) 2010年第1期53卷 115-128页

作者： SUN MingXuan1, WANG DanWei2 & CHEN PengNian3 1college of Information engineering, Zhejiang University of technology, Hangzhou 310014, china 2School of Electrical and Electronic engineering, Nanyang Technological University, Singapore 639794 3Department of Mathematics, china institute of Metrology, Hangzhou 310018, china 1. college of Information engineering Zhejiang University of Technology Hangzhou 310014 China2. School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639794 Singapore3. Department of Mathematics China Institute of Metrology Hangzhou 310018 China

Iterative learning control requires initial repositioning, while the time functions to be learned should be of periodicity in repetitive control. However, there are cases in practice where the time-varying unknowns are not periodic but repetitive, and repetitive learning control is applicable with avoidance of initial repositioning. In this paper, repetitive learning control designs are presented for a broader class of nonlinear systems over finite intervals. The Freeman formula is modified and used for stabilization of the nominal nonlinear time-varying system undertaken. The global stability of the learning system and asymptotic convergence of the tracking error are established through analysis of both partially and fully saturated learning algorithms, respectively. The repetitive learning control method is theoretically shown to be effective in dealing with time-varying parametric uncertainties.

关键词： Initial condition problem convergence iterative learning control repetitive control repetitive learning control nonlinear systems

Research progress in gecko locomotion and biomimetic gecko-robots

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Progress in Natural Science:Materials International 2007年第1期17卷 1-5页

作者： DAI Zhendong and SUN Jiurong ( institute of Bio-inspired Structure and Surface engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, china college of Life Sciences, Peking University, Beijing 100871, china) [a]institute of Bio-inspired Structure and Surface engineering Nanjing University of Aeronautics and Astronautics Nanjing China [b]college of Life Sciences Peking University Beijing China

Geckos are known for their excellent ability to climb walls and run on ceilings. Previous studies of the gecko's locomotive and adhesive mechanisms, its neuro-sensory and neuro-modulatory systems, its fabrication of artificial setae array, and other related developments, have inspired further research on gecko-based and gecko-like robots. Key research findings in this area are reviewed in the present paper.

关键词： gecko locomotion biomimetic modulation gecko-like robot.

Complete quantum circuit of Haar wavelet based MRA

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Chinese Science Bulletin 2005年第16期50卷 1796-1798页

作者： HE Yuguo1,2 & SUN Jigui1,3 1. college of Computer Science and technology, Jilin University, Changchun 130012, china 2. Department of Computer Science and engineering, Beijing institute of technology, Beijing 100081, china 3. Key Laboratory of Computation and Knowledge engineering of Min-istry of Education, Jilin University, Changchun 130012, china college of Computer Science and technology Jilin University Changchun 130012 China

Wavelet analysis has applications in many ar- eas, such as signal analysis and image processing. We pro- pose a method for generating the complete circuit of Haar wavelet based MRA by factoring butterfly matrices and con- ditional perfect shuffle permutation matrices. The factoriza- tion of butterfly matrices is the essential part of the design. As a result, it is the key point to obtain the circuits of I 2t ⊕ W ⊕ I 2n ? 2t ?2. In this paper, we use a simple means to de- velop quantum circuits for this kind of matrices. Similarly, the conditional permutation matrix is implemented entirely, combined with the scheme of Fijany and Williams. The cir- cuits and the ideas adopted in the design are simple and in- telligible.

关键词：量子计算量子算法量子电路 Haar微波 MRA

Effects of lanthanum on calcium-activated K^+ currents and its kinetics in MC3T3 cells

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Science china Chemistry 2010年第6期53卷 1281-1286页

作者： ZHANG LiPing1,2 & YANG Pin1 1Key Laboratory of Chemical Biology and Molecular engineering of Ministry of Education institute of Molecular Science,Shanxi University,Taiyuan 030006,china 2college of Environment and Safety,Taiyuan University of Science and technology,Taiyuan 030024,china 1. Key Laboratory of Chemical Biology and Molecular engineering of Ministry of Education institute of Molecular Science Shanxi University Taiyuan 030006 China2. College of Environment and Safety Taiyuan University of Science and Technology Taiyuan 030024 China

Using the whole cell patch-clamp technique,we studied the effects of La3+ on calcium-activated K+ currents and its kinetics of activation and inactivation in non-excitable MC3T3 *** results showed that the calcium-activated outward K+ currents were promoted with increasing concentration of Ca2+ in the pipette solution and a voltage- and Ca2+-dependent ***3+ in the bath solution inhibited the currents in a concentration-dependent manner and the inhibition EC50 was 8.23 ± 1.45 μmol/*** the concentration of 50 μmol/L,La3+ significantly changed the Vh of the activation curve and shifted the activation curve to more positive potentials,but shifted the inactivation curve to more negative *** had no effect on the slope factor k of the activation and inactivation *** currents inhibition could induce a series of physiological and molecular biological functions,presumably because of its ability to depolarize the plasma membrane and enhance cell excitability,resulting in increasing Ca2+ influx and cytoplast Ca2+ *** process may be one of the molecular mechanisms by which La3+ affects the cell growth and function of MC3T3 cells.

关键词： MC3T3 cell potassium ion channel La3+ patch-clamp technique

THE COORDINATION ADSORPTION OF AMINES ON CARBOXYL RESIN IN Cu^(2+) FORM FROM NON-AQUEOUS MEDIUM AND DESORPTION WITH ANHYDROUS ELUANT

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Chinese Journal of Polymer Science 2002年第5期20卷 439-444页

作者： Jia-zheng Li Zuo-qing Shi Yun-ge Fan The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation, institute of Polymer Chemistry Nankai University, Tianjin 300071, china college of Chemical engineering Hebei University of technology Tianjin 300130 china Nankai Univ Inst Polymer Chem State Key Lab Funct Polymer Mat Adsorpt & Separat Tianjin 300071 Peoples R China Hebei Univ Technol Coll Chem Engn Tianjin 300130 Peoples R China

The adsorption of aniline, N-methylaniline and N,N-dimethylaniline onto carboxyl resin in Cu2+ form from water, ethanol and n-hexane have been studied. The results show that the adsorption affinities from n-hexane are higher than that from water, and nearly zero from ethanol. The separation factors for the adsorption of these three amines from mixed solution were also examined. The results of continuous column operations show that the breakthrough capacity of aniline from n-hexane reaches 90 mg/g dry resin in Cu2+ form, and the amines adsorbed can be stripped with anhydrous ethanol effectively. Adsorption onto carboxyl resin in Cu2+ form from non-aqueous medium and desorption with anhydrous eluant can overcome the run-off of Cu2+ from the resin, and would show potential advantages in the separation of some water-insoluble natural products.

关键词： coordination adsorption adsorption selectivity amine ligand

Synthesis of nanostructural ZnO using hydrothermal method for dye-sensitized solar cells

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Science china(Technological Sciences) 2010年第4期53卷 1146-1149页

作者： WANG ChunXiao1,2,ZHANG XiaoDan1,WANG DongFeng1,YANG ZhenHua1,2,JI WeiWei1,ZHANG CunShan2 & ZHAO Ying1 1 institute of Photo-electronic Thin Film Devices and technology of Nankai University,Key Laboratory of Photo-electronic Information Science and technology(Nankai University),Ministry of Education,Tianjin 300071,china 2 college of Information engineering,Hebei University of technology,Tianjin 300130,china 1. Key Laboratory of Photo-electronic Information Science and technology (Nankai University) Ministry of Education Institute of Photo-electronic Thin Film Devices and Technology of Nankai University Tianjin 300071 China2. College of Information Engineering Hebei University of Technology Tianjin 300130 China

ZnO nanocrystals with different morphologies were successful synthesized by a simple hydrothermal method combined with and without hexadecyl trimethyl ammonium bromide(CTAB).The phases and morphologies of the products were measured using X-ray diffraction(XRD),scanning electron microscopy(SEM),and transmission electron microscopy(TEM),*** results indicated that the ZnO nanocrystals with different morphologies were of hexagonal wurtzite *** nanorods were obtained without using CTAB,and then the morphology of ZnO changed to ZnO nanoflower and the density of nanoflower became denser with the increase of CTAB *** nanoflower and ZnO nanorod as photoanode were applied to dye-sensitized solar cells(DSSC),*** nanoflower shows a higher dye loading,so DSSC with the use of the ZnO nanoflower possesses a higher conversion efficiency than ZnO nanorod.

关键词： DSSC ZnO