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Pose Synchronization of Multiple Rigid Bodies Under Average Dwell Time Condition

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Journal of Systems Science & Complexity 2018年第1期31卷 215-233页

作者： deng juan WANG Lin LIU Zhixin HU Xiaoming LSC Academy of Mathematics and Systems Science Chinese Academy of Science Beijing 100190 China School of Mathematical Sciences University of Chinese Academy of Sciences Beijing 100049 China Department of Automation Shanghai Jiaotong University and the Key Laboratory of System Control and Information Processing Ministry of Education Shanghai 200240 China Optimization and Systems Theory KTH Royal Institute of Technology 10044 Stockholm Sweden

This paper considers the pose synchronization problem of a group of moving rigid bodies under switching topologies where the dwell time of each topology may has no nonzero lower bound. The authors introduce an average dwell time condition to characterize the length of time intervals in which the graphs are connected. By designing distributed control laws of angular velocity and linear velocity,the closed-loop dynamics of multiple rigid bodies with switching topologies can be converted into a hybrid dynamical system. The authors employ the Lyapunov stability theorem, and show that the pose synchronization can be reached under the average dwell time condition. Moreover, the authors investigate the pose synchronization problem of the leader-following model under a similar average dwell time condition. Simulation examples are given to illustrate the results.

关键词： Average dwell time hybrid dynamical systems pose synchronization rigid body SE(3)

Sleep quality of patients with postoperative glioma at home

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World Journal of Clinical Cases 2020年第20期8卷 4735-4742页

作者： Yang Huang Zi-juan Jiang juan deng Yu-juan Qi Department of Neurosurgery The Affiliated Brain Hospital of Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina

BACKGROUND The sleep quality of patients with postoperative glioma at home has not been reported *** this study,the sleep quality of postoperative glioma patients at home was explored through telephone *** To investigate the sleep quality of patients with postoperative *** Glioma patients who were treated and operated on at Nanjing Brain Hospital from May 2012 to August 2019 were selected as participants via convenience sampling.A total of 549 patients were recruited by telephone,and 358 of those patients responded to the Pittsburgh Sleep Quality Index(PSQI).RESULTS The total PSQI score was 5.19±3.39 in all patients with postoperative glioma,which was higher than that of the normal *** were 135 patients with poor sleep quality(PSQI>7),which accounted for 37.7%of all *** scores of the seven dimensions of the PSQI were sleep latency(1.22±1.05),sleep disturbance(1.12±0.98),subjective sleep quality(1.03±0.92),habitual sleep efficiency(1.02±0.91),daytime dysfunction(0.95±0.43),sleep persistence(0.83±0.76),and use of sleeping medication(0.25±0.24).The results showed that the subjective sleep quality of the patients who underwent an operation 1-2 years ago was worse than that of the patients who underwent an operation more than 2 years ago(P<0.05).Older patients had worse sleep latency and sleep duration scores than younger patients(P<0.05).Sleep disturbance and daytime dysfunction were worse in patients who received postoperative radiotherapy/chemotherapy(P<0.05).CONCLUSION The sleep quality of patients with postoperative glioma at home is worse than that of normal ***,difficulty falling asleep and sleep disorders are common complications among these patients,and age,postoperative duration,and postoperative chemoradiotherapy could affect sleep quality.

关键词： Sleep quality Postoperative Glioma patients Radiotherapy Chemotherapy Outcome

Preparation and photocatalytic activity of Cu^(2+)-doped TiO_2/SiO_2

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International Journal of Minerals,Metallurgy and Materials 2009年第2期16卷 220-225页

作者： Ru-fen Chen Cui-xuan Zhang juan deng Guo-qiang Song College of Chemistry and Material Science Hebei Normal University Shijiazhuang 050016 China

Cu^2＋-doped nanostructured TiO2-coated SiO2 （TiO2/SiO2） particles were prepared by the layer-by-layer assembly technique and their photocatalytic property was studied. TiO2 colloids were synthesized by the sol-gel method using TiOSO4 as a precursor. The experimental results showed that TiO2 nanopowders on the surface of SiO2 particles were well distributed and compact. The amount of TiO2 increased with the increase in coating layers. The shell structure appeared to be composed of anatase titania nanocrystals at 550℃. The 2-layer coated TiO2 particles on the surface showed a higher degradation rate compared with all the different-layer samples. The photocatalytic activity of Cu^2＋-doped TiO2/SiO2 was higher than that ofundoped TiO2/SiO2. The optimum dopant content was about 0.10wt%.

关键词： nanostructured TiO2 SiO2 particles layer-byqayer assembly Cu^2+ -doped photocatalytic activity

Hydrophobic surface modification of chitosan gels by stearyl for improving the activity of immobilized lipase

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Chinese Chemical Letters 2009年第8期20卷 995-999页

作者： Hong Tao deng juan juan Wang Miao Ma Zhong Yang Liu Fei Zheng College of Chemistry Central China Normal University Wuhan 430079 China

The hydrophobic surface modification of chitosan gels was carried out using the amidating reaction of amido groups on a gel surface with stearic acid activated by 1-ethyl-3-（3-dimethylaminopropyl）-carbodiimide hydrochloride （EDC） and N-hydroxysuccinimide （NHS）. Lipases from Candida rugosa were adsorbed on the nascent chitosan gels （CS） and stearyl-modified gels （SCS） with different degrees of amidation. The increased surface hydrophobicity of chitosan gels improved the adsorption capacity and activity of the immobilized lipase. SCS with 31.46% amidation showed the maximum activity retention （83.43%）. The experimental results suggest that the moderate surface hydrophilicity/hydrophobicity of chitosan gels is necessary for the improvement of the activity of immobilized lipase. ？2009 Hong Tao deng. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Lipase Chitosan Surface modification Adsorption

Preparation of TiO2 Nanocrystals/Graphene Composite and Its Photocatalytic Performance

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Chinese Journal of Chemical Physics 2014年第3期27卷 321-326页

作者： Ling-juan deng Yuan-zi Gu Wei-xia Xu Zhan-ying Ma School of Chemistry & Chemical Engineering Xianyang Normal University Xianyang 712000 China

TiO2 nanocrystals/graphene （TiO2/GR） composite are prepared by combining flocculation and hydrothermal reduction technology using graphite oxide and TiO2 colloid as precursors. The obtained materials are examined by scanning electron microscopy, transition electron microscopy, X-ray diffraction, N2 adsorption desorption, and ultraviolet-visible diffuse spectroscopy. The results suggest that the presence of TiO2 nanocrystals with diameter of about 15 nm prevents GR nanosheets from agglomeration. Owing to the uniform distribution of TiO2 nanocrystals on the GR nanosheets, TiO2/GR composite exhibits stronger light absorption in the visible region, higher adsorption capacity to methylene blue and higher efficiency of charge separation and transportation compared with pure TiO2. Moreover, the TiO2/GR composite with a GR content of 30% shows higher photocatalytic removal efficiency of MB from water than that of pure TiO2 and commercial P25 under both UV and sunlight irradiation.

关键词： TiO2 nanocrystals/graphene composite Photocatalyst Chemical adsorptivity Extended light absorption Efficient charge separation

The Spinal-Parabrachial-Mesencephalic Circuit: A Possible Explanation of How Pain Leads to Emotional Disorders

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Neuroscience Bulletin 2022年第4期38卷 456-458页

作者： Hongze Yan Guokang Mo Ngoc T.Ha juan deng School of Basic Medical Sciences Fudan UniversityShanghai 200032China Department of Physiology Anatomyand GeneticsUniversity of OxfordOxfordOxfordshire OX13PTEngland Institute for Translational Brain Research MOE Frontiers Center for Brain ScienceFudan UniversityShanghai 200032China

The ability to feel pain isessential for sensing the everchanging environment for potential danger,and thus,is important for the survival of an *** in 10 adults experiences chronic pain,which is one of the major causes of human suffering and is often associated with emotional distress such as depression,anxiety,and reduced motivation[1].These negative affective componentsofpain not only augment the perceptionof pain,but also,reduce the success rate of pain treatment in the ***,how does chronic pain lead to these psychological effects?

关键词： motivation emotional such

The SOLIDS 6G Mobile Network Architecture:Driving Forces,Features,and Functional Topology

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Engineering 2022年第1期8卷 42-59页

作者： Guangyi Liu Na Li juan deng Yingying Wang Junshuai Sun Yuhong Huang China Mobile Research Institute Beijing 100053China

With the large-scale commercial launch of fifth generation(5G)mobile network,the development of new services and applications catering to the year 2030,along with the deep convergence of information,communication,and data technologies(ICDT),and the lessons and experiences from 5G practice will drive the evolution of the next generation of mobile *** article surveys the history and driving forces of the evolution of the mobile network architecture and proposes a logical function architecture for sixth generation(6G)mobile *** proposed 6G network architecture is termed SOLIDS(related to the following basic features:soft,on-demand fulfillment,lite,native intelligence,digital twin,and native security),which can support self-generation,self-healing,self-evolution,and self-immunity without human involvement and address the primary issues in the legacy 5G network(e.g.,high cost,high power consumption,and highly complicated operation and maintenance),significantly well.

关键词： Sixth generation Network features Network architecture

Native intelligence for 6G mobile network: technical challenges,architecture and key features

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The Journal of China Universities of Posts and Telecommunications 2022年第1期29卷 27-40页

作者： Liu Guangyi deng juan Zheng Qingbi Li Gang Sun Xin Huang Yuhong Future Research Lab China Mobile Research InstituteBeijing 100032China

The application of the artificial intelligence(AI) technology in the 5 th generation mobile communication system(5 G) networks promotes the development of the mobile communication network and its application in vertical industries, however, the application models of "patching" and "plug-in" have hindered the effect of AI applications. Meanwhile, the application of AI in all walks of life puts forward requirements for new capabilities of the future network, such as distributed training, real-time collaborative inference, local data processing, etc., which require "native intelligence design" in future networks. This paper discusses the requirements of native intelligence in the 6 th generation mobile communication system(6 G) networks from the perspectives of 5 G intelligent network challenges and the "ubiquitous intelligence" vision of 6 G, and analyzes the technical challenges of the AI workflows in its lifecycle and the AI as a service(AIaaS) in cloud network. The progress and deficiencies of the current research on AI functional architecture in various industry organizations are summarized. The end-to-end functional architecture for native AI for 6 G network and its three key technical characteristics are proposed: quality of AI services(QoAIS) based AI service orchestration for its full lifecycle, deep integration of native AI computing and communication, and integration of native AI and digital twin network. The directions of future research are also prospected.

关键词： the 5th generation mobile communication system the 6th generation mobile communication system artificial intelligence native intelligence network intelligence network architecture mobile communication

Gastric motility functional study based on electrical bioimpedance measurements and simultaneous electrogastrography

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第12期12卷 983-989页

作者： Zhang-yong LI Chao-shi REN Shu ZHAO Hong SHA juan deng College of Bioinformation Chongqing University of Posts and Telecommunications Chongqing 400065 China nstitute of Biomedical Engineering Chinese Academy of Medical Sciences ＆ Peking Union Medical College Tianjin 300192 China

For some time now,the research on gastric motility and function has fallen behind in the amount of research on gastric endocrine,exocrine secretion,and gastric *** this paper,a noninvasive method to study gastric motility was developed,taking bioimpedance measurements over the gastric area simultaneously with the electrogastrography(EGG).This is based on the concept of observing and analyzing simultaneously the intrinsic electrical gastric activity(basic electric rhythm) and the mechanical gastric ***,preliminary clinical studies of healthy subjects and subjects with functional dyspepsia(FD) and gastritis were carried *** impedance gastric motility(IGM) measurements of the healthy and FD subjects were compared,along with the studies of the FD subjects before treatment and after one week and three weeks of *** also compared IGM measurements of healthy subjects and subjects with erosive gastritis,along with the studies of the subjects with erosive gastritis before treatment and after one week of *** show that FD subjects have poor gastric motility(P0.05),These results suggest the possibility of clinic application of the proposed method.

关键词： Gastric motility Electrical bioimpedance Electrogastrography Functional dyspepsia Gastritis