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A new candidate as the cathode material for intermediate and low temperature SOFCs

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Rare Metals 2006年第Z1期25卷 213-217页

作者： LI Song sun Xueli WEN zhongsheng sun Juncai Institute of Materials and Technology Dalian Maritme University Dalian 11606 China Institute of Materials and Technology Dalian Maritme University Dalian 11606 China Institute of Materials and Technology Dalian Maritme University Dalian 11606 China Institute of Materials and Technology Dalian Maritme University Dalian 11606 China

In order to develop the new cathode materials suitable for intermediate and low temperature solid oxide fuel cells (IT/LTSOFCs), LaNi1-xFexO3 (x=0.4-0.8) (LNF) materials were synthesized using coprecipitation method. Their structures and morphologies were investigated by XRD and SEM, and their electronic conductivities at different temperatures were measured by dc four terminal method. Fuel cells were fabricated to evaluate the electrochemical properties of the LNF materials as cathodes at different temperatures. The performance of 450-497 mW·cm-2 was obtained in the temperature region of 580-650 ℃ for the LaNi0.2Fe0.8O3 cathode, and of 209-227 mW·cm-2 at 400-500 ℃ for the LaNi0.4Fe0.6O3. The excellent fuel cell performances indicate that the LNF materials are good cathodes for IT/LTSOFCs.

关键词： LaNi1-xFexO3 cathode materials coprecipitation method IT/LTSOFC

Single-Cell Sequencing Technologies: Current and Future

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Journal of Genetics and Genomics 2014年第10期41卷 513-528页

作者： Jialong Liang Wanshi Cai zhongsheng sun Beijing Institutes of Life Science Chinese Academy of Sciences University of Chinese Academy of Sciences Institute of Genomic Medicine Wenzhou Medical University

Intensively developed in the last few years, single-cell sequencing technologies now present numerous advantages over traditional sequencing methods for solving the problems of biological heterogeneity and low quantities of available biological materials. The application of single-cell sequencing technologies has profoundly changed our understanding of a series of biological phenomena, including gene transcription, embryo development, and carcinogenesis. However, before single-cell sequencing technologies can be used extensively, researchers face the serious challenge of overcoming inherent issues of high amplification bias, low accuracy and repro- ducibility. Here, we simply summarize the techniques used for single-cell isolation, and review the current technologies used in single-cell genomic, transcriptomic, and epigenomic sequencing, We discuss the merits, defects, and scope of application of single-cell sequencing technologies and then speculate on the direction of future developments.

关键词： Single-cell Sequencing Genome Transcriptome Epigenome

FORCE FEEDBACK DATAGLOVE BASED ON PNEUMATIC ARTIFICIAL MUSCLES

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Chinese Journal of Mechanical Engineering 2006年第4期19卷 588-593页

作者： BAO Gang sun zhongsheng WANG Zuwen Pneumatic Center Harbin institute of Technology Harbin 150001 China

An exoskeleton force feedback dataglove is developed, which uses the pneumatic artificial muscles as actuators. On the basis of the simplified hand model, the motion equation is deduced according to the theory of Denavit-Hartenberg. The model of the equivalent contact forces exerted by the object on the finger is proposed. By the principle of virtual work, the static equilibrium of finger is established. The force Jacobian matrix of finger is calculated, and then the joint torques of the finger when grasping objects are obtained. The theory and structure of the force feedback datagolve are introduced. Based on the theory of motion stabilization of four-bar linkage, the flexion angles of joints are measured. The torques on finger joints caused by the output forces of pneumatic artificial muscles are calculated. The output forces of pneumatic artificial muscle, whose values are controlled by its inner pressure, can be calculated by the joint torques of the finger when grasping objects. The arms of force, driving torques and the needed output forces of pneumatic muscle are calculated for each joint of the index finger. The criterion of output force of pneumatic muscle is given.

关键词： Force feedback dataglove Pneumatic artificial muscles Principle of virtual work Force Jacobian matrix

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新型大倍率空气放大器性能影响因素的研究

机械制造与自动化 2024年第4期53卷 71-75页

作者：董大腾李小宁孙中圣南京理工大学机械工程学院江苏南京210094

为了提高空气放大器的综合性能,设计一种环状多段射流缝隙的新型间隔射流式空气放大器。通过仿真与试验相结合的方法,研究单元数n与闭通比P对卷吸比、输出流量以及内部流动的影响规律。研究结果表明:随着P的增大,间隔射流式空气放大器... 详细信息

为了提高空气放大器的综合性能,设计一种环状多段射流缝隙的新型间隔射流式空气放大器。通过仿真与试验相结合的方法,研究单元数n与闭通比P对卷吸比、输出流量以及内部流动的影响规律。研究结果表明:随着P的增大,间隔射流式空气放大器的卷吸比增大,而输出流量逐渐减小;n对卷吸比与输出流量影响不大,但较小的n会在扩散混合区内引发边界层分离,影响流动的稳定性;当供气压力为0.5 MPa时,n=16、P=2的间隔射流式空气放大器卷吸比为2.55,与环射式空气放大器相比,其输出流量略高,卷吸比提升了5.8%。

关键词：空气放大器间隔射流卷吸比结构

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Multiple walking human recognition based on radar micro-Doppler signatures

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Science China(Information Sciences) 2015年第12期58卷 177-189页

作者： sun zhongsheng WANG Jun ZHANG YaoTian sun JinPing YUAN ChangShun BI YanXian School of Electronic and Information Engineering Beihang University

The recognition of human movements based on radar m-D(micro-Doppler) signatures attracts great interest in the field of radar research on automatic target recognition. Because there are multiple frequency components overlapping seriously in the radar echoes from walking humans, it is a very difficult work to recognize walking humans based on radar echoes. In this paper, a recognition method of walking humans based on radar m-D signatures is proposed. In this method, the m-D spectrum is generated by generalized S transform first,and then the entropy segmentation is used to segment the interesting region from the original spectrum. Next,the m-D features are extracted from the m-D region. Lastly, the support vector machine is used to recognize different walking human targets. The simulation experiments considering two factors of height and velocity are also conducted to test the performance of this proposed method.

关键词： radar micro-Doppler walking human generalized S transform recognition

Mechanism of lithium insertion into NiSi_2 anode material for lithium ion batteries

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Rare Metals 2006年第Z1期25卷 77-81页

作者： WEN zhongsheng JI Shijun sun Juncai TIAN Feng TIAN Rujin XIE Jingying Institute of Materials and Technology Dalian Maritime University Dalian 116026 China Laboratory of Energy Science and Technology Shanghai Institude of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China Institute of Materials and Technology Dalian Maritime University Dalian 116026 China Institute of Materials and Technology Dalian Maritime University Dalian 116026 China Institute of Materials and Technology Dalian Maritime University Dalian 116026 China Institute of Materials and Technology Dalian Maritime University Dalian 116026 China Laboratory of Energy Science and Technology Shanghai Institude of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China

As a promising high capacity anode material for lithium ion batteries, the lithium insertion performance and possible insertion mechanism of binary alloy of NiSi2 were discussed. The initial lithium insertion of crystal NiSi2 can reach up to 600 mAh·g-1, but large irreversible capacity occurrs simultaneously for serious structure transformation and the irreversible phase forms. XRD and XPS were employed to detect the crystal structure and composition changes produced by lithium insertion. The lithium insertion-extraction behavior of NiSi2 electrode is similar to that of silicon after the first discharge. The structure stability seems related to the non-stoichimometric Ni-Si compound formed by lithium insertion into NiSi2.

关键词： anode lithium ion batteries nickel silicide high capacity

Targeted sequencing and integrative analysis of 3,195 Chinese patients with neurodevelopmental disorders prioritized 26 novel candidate genes

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Journal of Genetics and Genomics 2021年第4期48卷 312-323页

作者： Tao Wang Yi Zhang Liqui Liu Yan Wang Huiqian Chen Tianda Fan Jinchen Li Kun Xia zhongsheng sun Center for Medical Genetics&Hunan Key Laboratory of Medical Genetics School of Life SciencesCentral South UniversityChangshaHunan 410083China Beijing Institutes of Life Science Chinese Academy of SciencesBeijing 100101China DIAGenes Precision Medicine Beijing 102600China National Clinical Research Centre for Geriatric Disorders Department of GeriatricsXiangya HospitalCentral South UniversityChangshaHunan 410083China Shanghai Adeptus Biotechnology Shanghai 200126China Institute of Genomic Medicine Wenzhou Medical UniversityWenzhouZhejiang 325035China Department of Neurology Xiangya HospitalCentral South UniversityChangsha Hunan410083China CAS Center for Excellence in Brain Science and Intelligences Technology(CEBSIT) Shanghai 200031China School of Basic Medical Science Central South UniversityChangshaHunan410083China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Integrated Management of Pest Insects and Rodents Chinese Academy of SciencesBeijing 100101China

Neurodevelopmental disorders(NDDs)are a set of complex disorders characterized by diverse and cooccurring clinical *** genetic contribution in patients with NDDs remains largely ***,we sequence 519 NDD-related genes in 3,195 Chinese probands with neurodevelopmental phenotypes and identify 2,522 putative functional mutations consisting of 137 de novo mutations(DNMs)in 86 genes and 2,385 rare inherited mutations(RIMs)with 22 X-linked hemizygotes in 13 genes,2 homozygous mutations in 2 genes and 23 compound heterozygous mutations in 10 ***,the DNMs of16,807 probands with NDDs are retrieved from public datasets and combine in an integrated analysis with the mutation data of our Chinese NDD probands by taking 3,582 in-house controls of Chinese origin as *** prioritize 26 novel candidate ***,six of these genes d ITSN1,UBR3,CADM1,RYR3,FLNA,and PLXNA3 d preferably contribute to autism spectrum disorders(ASDs),as demonstrated by high co-expression and/or interaction with ASD genes confirmed via rescue experiments in a mouse ***,these genes are differentially expressed in the ASD cortex in a significant manner and involved in ASD-associated ***,our study expands the genetic spectrum of Chinese NDDs,further facilitating both basic and translational research.

关键词： De novo mutations X-linked variants Rare inherited variants Homozygous mutations Neurodevelopmental disorders Autism spectrum disorders Candidate genes

ABSTRACTS SOME SUGGESTIONS OF IMPROVING WELL CONTROL TECHNOLOGY LEVEL

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钻采工艺 2009年第3期32卷 I0001-I0006页

作者： WANG zhongsheng LIN Ancun sun Kai LI Qian PAN Renjie CCDC Drilling ＆ Production Technology Research Insti-tute Guanghan City 618300 Sichuan Province P. R. China

Multiple walking human recognition based on radar micro-Doppler signatures

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Science China Chemistry 2015年第12期58卷 173-185页

作者： sun zhongsheng WANG Jun ZHANG YaoTian sun JinPing YUAN ChangShun BI YanXian School of Electronic and Information Engineering Beihang University

关键词： radar micro-Doppler walking human generalized S transform recognition