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Improved Consensus Speed for Discrete-Time Multi-agent Systems

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Journal of Donghua University(English Edition) 2013年第6期30卷 461-465页

作者： li M. li q.-q. Gao H.-L. School of Control Science and Engineering Shandong University Jinan 250061 China School of Electrical Engineering and Automation Qilu University of Technology Jinan 250061 China College of Automation South China University of Technology Guangzhou 510641 China

The consensus problem of a linear discrete-time multi- agent system with directed communication topologies was investigated. A protocol was designed to solve consensus with an improved convergence speed achieved by designing protocol gains. The clo6ed-loop *** system converged to an expected type of consensus function, which was divided into four types： zero, non- zero constant vector, bounded trajectories, and ramp trajectories. An algorithm was further provided to construct the protocol gains, which were determined in terms of a classical pole placement algorithm and a modified algebraic Riccati eq.ation. Finally, an example to illustrate the effectiveness of theoretical results was presented.

关键词： discrete-time multi-agent consensus function consensus speed

Properties of Novel Reactive Transfer Printing of Silk

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Journal of Donghua University(English Edition) 2013年第6期30卷 514-520页

作者： li q. Wang Y. Xing T.-L. Chen G.-q. National Engineering Laboratory for Modern Silk College of Textile and Clothing Engineering Soochow University Suzhou 215123 China Changzhou Hanyuan New Printing Co. Ltd. Changzhou 213000 China

The novel reactive transfer printing of silk was carried out through a hot-press adhesion and steaming. The special transfer paper was prepared by coating the paste mainly containing hot-melt adhesive hlgh-substituted hydroxypropyl cellulose （H-HPC） and printing thickener earboxymethyl cellulose （CMC）. The effects of each ingredient in the paste on color yield of the prints and dye penetration were investigated. The major results indicate that, color yield is chiefly governed by the adhesion extent imparted by H-HPC, the type of fixing alkaline agent, and the content of urea. Trichloroacetic acid （TCAA） as the fixing alkaline agent and adding 5% urea can enhance the color depth obviously. Dye penetration depends on the coating q.antity on the transfer paper, the contents of urea and dicyandiamide. The printed silk possesses a higher color yield, color fastness of grade 3 or above, clear sharpness, and good handle when the paste contains 3 % H-HPC, 0. 7 % CMC, 3 % TCAA, 5 % urea, 3 % dicyandiamide, and 0. 5 % physical sorbent nano-silica.

关键词： transfer printing transfer paper silk reactive dye high- substituted hydroxypropyl cellulose ( H - HPC ) trichloroacetic acid ( TCAA )

Changes in firing rate and firing pattern of midbrain dopaminergic neurons after lesioning of the dorsal raphe nucleus by 5,7-drhydroxytryptamine in adult rats

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Journal of Pharmaceutical Analysis 2008年第2期20卷 76-81页

作者： Wang S. liu J. Wang T. Han L. Zhang q. li q. Department of Physiology and Pathophysiology Medical School of Xi'an Jiaotong University Xi'an 710061 China Key Laboratory of Enviornment and Genes Related to Diseases Ministry of Education Xi'an 710061 China Department of Neurology Second Affiliated Hospital Medical School of Xi'an Jiaotong University Xi'an 710004 China

Objective To study the effect of serotonergic efferent projection of the dorsal raphe nucleus(DRN)on the activity of substantia nigra pars compacta(SNc)and ventral tegmenta area(VTA)dopaminergic neurons after lesioning of the DRN by the neurotoxin 5,7-drhydroxytryptamine(5,7-DHT)in *** The changes in the firing rate and firing pattern of SNc and VTA dopaminergic neurons were observed with extracellular recording in control and the lesioned *** The results showed that the mean firing rates o...

关键词： 5,7-dihydroxytryptamine Dorsal raphe nucleus Electrophysiology Substantia nigra pars compacta Ventral tegmental area

The changes of neuronal activity of the zone incerta in a rodent model of Parkinson s disease

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Journal of Pharmaceutical Analysis 2008年第2期20卷 71-75页

作者： Han L. liu J. Wang S. Wang T. Zhang q. li q. Department of Physiology and Pathophysiology Medical School of Xi'an Jiaotong University Xi'an 710061 China Key Laboratory of Enviornment and Genes Related to Diseases Ministry of Education Xi'an 710061 China Department of Neurology Second Affiliated Hospital Medical School of Xi'an Jiaotong University Xi'an 710004 China

Objective To study the changes in neuronal activity of the zone incerta(ZI)following the unilateral lesion of the nigrostriatal *** Electrophysiological recordings of ZI neurons were made in normal rats and in two groups of rats at different time intervals after injection of 6-hydrodopamine(6-OHDA)into the pars compacta of substantia nigra by extracellular recording in *** The results showed a significant increase in the mean firing rate of ZI during the second and fourth weeks after 6-...

关键词： 6-hydroxydopamine Electrophysiology Parkinson's disease(PD) Zone incerta

SIMULATION ON TEMPERATURE FIELD OF FRICTION STIR WELDED JOINTS OF 2024-T4 Al

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Acta Metallurgica Sinica(English Letters) 2005年第4期18卷 552-556页

作者： S.X. Lu J. C. Yan W.G. li S. q. Yang State Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 China

The thermal model of FSW based on the thermal elastic-plastic finite element method, and the transient temperature distribution of FS welded joints of 2024-T4 Al was simulated by using this model, which provides useful information for the investigation of FSW process. Simulation resuits show that the temperature distribution of the weld gradually decreases toward periphery in a radiate format, whose center is the probe, and the highest temperature in the weld can reach about 400℃. The initial terminal of the weld is a zone, in which the temperature gradient is great, and defects of the welding are easily produced in this zone. Temperature change at the end of the welded joint is as layer variation, the local serious defects are not easy to produce in this zone.

关键词： friction stir welding aluminium alloy temperature field simulation

Influence of Zn Doping on Novel Cathode Material liFePO_4

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复旦学报（自然科学版） 2005年第5期44卷 877-878页

作者： H. liu C. li q. Cao H.P. Zhang Y.P. Wu H.q. Wu Department of Chemistry ＆ Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Fudan University Shanghai 200433 China

The novel cathode material liFePO4 for lithium ion battery is considered as the substitute of liCoO2 because of its high theoretical capacity, environmental benignancy and inexpensive cost[1,2]. But it is restricted by its low conductivity, the traditional ways to improve are carbon coating[3,4] and heteroatom doping[5-7].In this paper, we introduced the Zn as heteroatom and investigated the improvement by Zn doping.

关键词： liFePO4 锂电池电解液阴极电化学

Evaluation of improved q.ality of life and therapeutic effect of duragesic on cancerous pain in patients with and advanced tumors

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中国临床康复 2002年第16期6卷 2500-2501页

作者： Fan L. Ren J. Zhang Y.-J. You X.-H. Sheng R. li Y.-q. Xijing Hospital Fourth Military Medical University Xi'an 710032 China

Objective To investigate therapeutic effect of duragesic in the treatment of cancerous pain in patients with advanced tumors,Method Before entering the study,all patients suffered from moderate to sever cancerous pain,All patients were given 5 doses of duragesic within 15 days,Evaluation was performed every 12 hous,We assessed pain intensity and pain relief by using numoral rating scale(NRS).q.ality of life was also *** Eventual dose was 2.5 mg in 10cases,5 mg in 49 cases.,7.5 mg in 5 cases,10 mg in 3cases,and 12.5 mg in 1 cases,15mg in 1 case complete relief was observed in 13 cases,partial relief observed in 45 cases, effective rate was 84.06%,The therapeutic effect of duragesic was similar to that of MS contin,Therapeutic dffect occurred 48-72house later and became most significant 2-4 days later,and maintain at constant level,Conclusion By the special pattern for delivery via transdermal system,duragesic produces lasting and stable analgesic effect,In addition,it is characterized by simple operation,convenient application,insignificant adverse .Hence,duragesic can replace oral strong opiod drugs.

关键词：多瑞吉晚期癌痛镇痛疗效生存质量

A Hybrid Signal Processing Method Combining Mathematical Morphology and Walsh Theory for Power q.ality Disturbance Detection and Classification

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 584-592页

作者： Zhi Ding Tianyao Ji Mengshi li q.H.Wu School of Electric Power Engineering South China University of Technology(SCUT)Guangzhou 510641China

In this paper, a novel signal processing method combining mathematical morphology (MM) and Walsh theory is proposed, which uses Walsh functions to control the structuring element (SE) and MM operators. Based on the Walsh-MM method, a scheme for power q.ality disturbances detection and classification is developed, which involves three steps: denoising, feature extraction and morphological clustering. First, various evolution rules of Walsh function are used to generate groups of SEs for the multiscale Walsh-ordered morphological operation, so the original signal can be denoised. Next, the fundamental wave of the denoised signal is suppressed by Hadamard matrix;thus, disturbances can be extracted. Finally, the Walsh power spectrum of the waveform extracted in the previous step is calculated, and the parameters of which are taken by morphological clustering to classify the disturbances. Simulation results reveal the proposed scheme can effectively detect and classify disturbances, and the Walsh-MM method is less affected by noise and only involves simple calculation, which has a potential to be implemented in hardware and more suitable for real-time application.

关键词： Hadamard matrix mathematical morphology morphological clustering power q.ality disturbance Walsh theory

Microarray, SAGE and their applications to cardiovascular diseases

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Cell Research 2002年第2期12卷 105-115页

作者： SHUI q.NG YE, TERA LAVOIE, DAVID C USHER, li q. ZHANG1 Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, MD 21224, USA2Department of Biological Science, University of Delaware, Newark, DE 19716, USA 1Division of Pulmonary and Critical Care Medicine Johns Hopkins University School of Medicine Baltimore MD 21224 USA 1Division of Pulmonary and Critical Care Medicine Johns Hopkins University School of Medicine Baltimore MD 21224 USA 2Department of Biological Science University of Delaware Newark DE 19716 USA 3Department of Surgery University of Maryland Baltimore MD 21201 USA

The wealth of DNA data generated by the human genome project coupling with recently invented high-throughput gene expression profiling techniq.es has dramatically sped up the process for biomedical researchers on elucidating the role of genes in human diseases. One powerful method to reveal insight into gene functions is the systematic analysis of gene expression. Two popular high-throughput gene expression technologies, microarray and Serial Analysis of Gene Expression (SAGE) are capable of producing large amounts of gene expression data with the potential of providing novel insights into fundamental disease processes, especially complex syndromes such as cardiovascular disease, whose etiologies are due to multiple genetic factors and their interplay with the environment. Microarray and SAGE have already been used to examine gene expression patterns of cell-culture, animal and human tissues models of cardiovascular diseases. In this review, we will first give a brief introduction of microarray and SAGE

关键词： Microarray SAGE cardiovascular diseases RNA gene expression profiling.