检索结果-南通市图书馆

New-Level VR Marine Training System

在线全文

学校读者我要写书评

暂无评论

航海教育研究 2007年第z1期24卷 1-6页

作者： liU Xiu-wen JIV Yi-cheng yin yong li Zhi-hua Dalian Maritime Univ. Dalian 116026 China

Marine simulator is a valuable and effective medium for maritime education and training and is becoming widespread to foster the qualified and competent personnel for working in the maritime industry. However, many problems with most marine simulation systems today limit their pervasive use: the limited accessibility, immobility, the high expenditure, the long development cycle, and the difficult maintenance etc. A web-based maritime training environment is proposed in this paper as a new marine training level, which fully combining web technology, VR, high fidelity simulation, and e-learning tools to create a more costeffective and flexible training environment still with very realistic and high-interactive simulation characteristics, the system will provide a consistent and more flexible training medium for improving maritime education and training.

关键词： marine simulator virtual reality training

在线全文

学校读者我要写书评

暂无评论

MBD模型本体建模及检索技术研究与应用

北京航空航天大学学报 2017年第2期43卷 260-269页

作者：于勇顾黎印璞赵罡北京航空航天大学机械工程及自动化学院北京100083 中国空间技术研究院通信卫星事业部北京100094 北京航空航天大学北京市高效绿色数控加工工艺及装备工程技术研究中心北京100083

针对产品全三维数字化研制中产生的MBD历史建模数据重用性需求,提出了一种基于本体技术的MBD模型知识表达与管理方法,综合考虑几何信息与非几何信息进行检索应用。首先,根据MBD数据集规范性要求,以模型检索为目的,构建本体结构,分为几... 详细信息

针对产品全三维数字化研制中产生的MBD历史建模数据重用性需求,提出了一种基于本体技术的MBD模型知识表达与管理方法,综合考虑几何信息与非几何信息进行检索应用。首先,根据MBD数据集规范性要求,以模型检索为目的,构建本体结构,分为几何信息层与非几何信息层进行具体阐述;其次,根据已构建本体结构,给出几何信息层与非几何信息层相似性对比方法;最终,综合几何信息与非几何信息,实现MBD模型检索。本文方法通过本体技术,将MBD模型数据进行结构化、语义化表达和存储,在此基础上,综合考虑几何信息相似度及非几何信息相似度,进行相似模型检索,实现MBD模型信息重用。

关键词： MBD模型本体几何非几何检索

Flexible Strain Sensors with Ultra-High Sensitivity and Wide Range Enabled by Crack-Modulated Electrical Pathways

在线全文

学校读者我要写书评

暂无评论

NANO-MICRO LETTERS 2025年第1期17卷 1-19页

作者： Bai, Yunzhao Zhou, Yunlei Wu, Xuanyu yin, Mengfei yin, liting Qu, Shiyuan Zhang, Fan li, Kan Huang, yongan Huazhong Univ Sci & Technol State Key Lab Intelligent Mfg Equipment & Technol Wuhan 430074 Peoples R China Huazhong Univ Sci & Technol Flexible Elect Res Ctr Wuhan 430074 Peoples R China Xidian Univ Hangzhou Inst Technol Hangzhou 311200 Peoples R China Xidian Univ Sch Mechanoelect Engn Xian 710071 Peoples R China Univ Southern Calif Dept Aerosp & Mech Engn Los Angeles CA 90089 USA

This study presents a breakthrough in flexible strain sensor technology with the development of an ultra-high sensitivity and wide-range sensor, addressing the critical challenge of reconciling sensitivity with measurement range. Inspired by the structure of bamboo slips, we introduce a novel approach that utilises liquid metal to modulate the electrical pathways within a cracked platinum fabric electrode. The resulting sensor demonstrates a gauge factor greater than 108 and a strain measurement capability exceeding 100%. The integration of patterned liquid metal enables customisable tuning of the sensor's response, while the porous fabric structure ensures superior comfort and air permeability for the wearer. Our design not only optimises the sensor's performance but also enhances the electrical stability that is essential for practical applications. Through systematic investigation, we reveal the intrinsic mechanisms governing the sensor's response, offering valuable insights for the design of wearable strain sensors. The sensor's exceptional performance across a spectrum of applications, from micro-strain to large-strain detection, highlights its potential for a wide range of real-world uses, demonstrating a significant advancement in the field of flexible electronics.

关键词： Flexible strain sensor Fabric Crack Response regulation Epidermal device

Cell atlas of CCl_(4)-induced progressive liver fibrosis reveals stage-specific responses

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Zoological Research 2023年第3期44卷 451-466页

作者： Peng-Cheng Guo Jing Zuo Ke-Ke Huang Guang-Yao Lai Xiao Zhang Juan An Jin-Xiu li li li liang Wu Yi-Ting lin Dong-Ye Wang Jiang-Shan Xu Shi-Jie Hao Yang Wang Rong-Hai li Wen Ma Yu-Mo Song Chang liu Chuan-Yu liu Zhen Dai Yan Xu Amar Deep Sharma Michael Ott Qing Ou-Yang Feng Huo Rong Fan yong-yin li Jin-lin Hou Giacomo Volpe Long-Qi liu Miguel A.Esteban Yi-Wei Lai State Key Laboratory for Zoonotic Diseases Key Laboratory for Zoonosis Research of Ministry of EducationInstitute of ZoonosisCollege of Veterinary MedicineJilin UniversityChangchunJilin 130062China BGI-Hangzhou HangzhouZhejiang 310012China BGI-Shenzhen ShenzhenGuangdong 518083China Key Laboratory of Biological Targeting Diagnosis Therapy and Rehabilitation of Guangdong Higher Education InstitutesFifth Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdong 510799China Laboratory of Integrative Biology Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouGuangdong 510530China Joint School of life Sciences Guangzhou Institutes of Biomedicine and Health and Guangzhou Medical UniversityGuangzhouGuangdong 510530China School of life Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230026China College of life Sciences University of Chinese Academy of SciencesBeijing 100049China Guangzhou Institutes of Biomedicine and Health Chinese Academy of SciencesGuangzhouGuangdong 510530China Biotherapy Centre Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510630China Department of Gastroenterology Hepatology and EndocrinologyHannover Medical SchoolHannover 30625Germany Department of Hepatobiliary Surgery and liver Transplant Center General Hospital of Southern Theater CommandGuangzhouGuangdong 510010China Department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangdong Provincial Key Laboratory of Viral Hepatitis ResearchGuangzhouGuangdong 510515China Hematology and Cell Therapy Unit IRCCS-Istituto Tumori‘Giovanni Paolo II’Bari 70124Italy Institute of Experimental Hematology Hannover Medical SchoolHannover 30625Germany

Chronic liver injury leads to progressive liver fibrosis and ultimately cirrhosis,a major cause of morbidity and mortality ***,there are currently no effective anti-fibrotic therapies available,especially for latestage patients,which is partly attributed to the major knowledge gap regarding liver cell heterogeneity and cellspecific responses in different fibrosis *** reveal the multicellular networks regulating mammalian liver fibrosis from mild to severe phenotypes,we generated a single-nucleus transcriptomic atlas encompassing 49919nuclei corresponding to all main liver cell types at different stages of murine carbon tetrachloride(CCl_(4))-induced progressive liver *** analysis distinguished the sequential responses to injury of hepatocytes,hepatic stellate cells and endothelial ***,we reconstructed the cell-cell interactions and gene regulatory networks implicated in these *** integrative analyses uncovered previously overlooked aspects of hepatocyte proliferation exhaustion and disrupted pericentral metabolic functions,dysfunction for clearance by apoptosis of activated hepatic stellate cells,accumulation of pro-fibrotic signals,and the switch from an anti-angiogenic to a pro-angiogenic program during CCl_(4)-induced progressive liver *** dataset thus constitutes a useful resource for understanding the molecular basis of progressive liver fibrosis using a relevant animal model.

关键词： liver fibrosis Toxicity Single-cell and single-nucleus RNA-sequencing Hepatocytes Hepatic stellate cells Angiogenesis Cell-cell interactions Gene regulatory networks

CNKSR2 interactome analysis indicates its association with the centrosome/microtubule system

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第8期20卷 2420-2432页

作者： lin yin Yalan Xu Jie Mu Yu Leng Lei Ma Yu Zheng Ruizhi li yin Wang Peifeng li Hai Zhu Dong Wang Jing li Institute for Translational Medicine The Affiliated Hospital of Qingdao UniversityMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina School of Basic Medicine Qingdao UniversityQingdaoShandong ProvinceChina College of life Sciences and School of PharmacyMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina Department of Urology Qingdao Municipal Hospital Affiliated to Qingdao UniversityQingdaoShandong ProvinceChina

The protein connector enhancer of kinase suppressor of Ras 2(CNKSR2),present in both the postsynaptic density and cytoplasm of neurons,is a scaffolding protein with several protein-binding *** of the CNKSR2 gene have been implicated in neurodevelopmental disorders,particularly intellectual disability,although the precise mechanism involved has not yet been fully *** has demonstrated that CNKSR2 plays a role in facilitating the localization of postsynaptic density protein complexes to the membrane,thereby influencing synaptic signaling and the morphogenesis of dendritic ***,the function of CNKSR2 in the cytoplasm remains to be *** this study,we used immunoprecipitation and high-resolution liquid chromatography-mass spectrometry to identify the interactors of *** a combination of bioinformatic analysis and cytological experiments,we found that the CNKSR2 interactors were significantly enriched in the proteome of the *** also showed that CNKSR2 interacted with the microtubule protein DYNC1H1 and with the centrosome marker *** colocalization analysis confirmed the centrosomal localization of *** we downregulated CNKSR2 expression in mouse neuroblastoma cells(Neuro 2A),we observed significant changes in the expression of numerous centrosomal *** manipulation also affected centrosome-related functions,including cell size and shape,cell proliferation,and ***,we found that CNKSR2 interactors were highly enriched in de novo variants associated with intellectual disability and autism spectrum *** findings establish a connection between CNKSR2 and the centrosome,and offer new insights into the underlying mechanisms of neurodevelopmental disorders.

关键词： autism spectrum disorder centrosome CNKSR2 intellectual disability interactome mass spectrometry microtubule neurodevelopmental disease protein complexes protein-protein interactions

在线全文

学校读者我要写书评

暂无评论

固体聚合物电解质水电解器的设计与实验

航天医学与医学工程 2007年第6期20卷 427-431页

作者：周抗寒尹永利王飞中国航天员科研训练中心北京100094

目的实现固体聚合物电解质水电解技术的工程化,解决这一技术在工程实施中存在的问题,使其满足密闭环境供氧设备的要求。方法电解池组采用阳极供水与压滤机组装的方式,针对水电解池供水与供电的要求,设计了电解池的极板以及集电板,并对... 详细信息

目的实现固体聚合物电解质水电解技术的工程化,解决这一技术在工程实施中存在的问题,使其满足密闭环境供氧设备的要求。方法电解池组采用阳极供水与压滤机组装的方式,针对水电解池供水与供电的要求,设计了电解池的极板以及集电板,并对极板进行了轻量化设计,组装了3套样机。结果在75℃、电流密度0.6A/cm2条件下,小池平均电解电压低于1.75V;在密闭舱内3人62d的试验考核中,水电解池堆运行稳定,产生的气体O2纯度高于99.5%;集成120个单电池的水电解器,能稳定输出压力为1MPa、流量为1 523L/h的O2。结论水电解器的设计合理、极板轻量化设计可行,基本解决固体聚合物电解质水电解技术工程化应用中的技术问题,满足密闭环境对水电解器的性能要求。

关键词：固体聚合物电解质水电解密闭舱供氧

A Remote Temperature Monitoring System Based on GSM

在线全文

学校读者我要写书评

暂无评论

Journal of Measurement Science and Instrumentation 2010年第S1期1卷 34-37页

作者： yong-ming li,yin-jing GUO,Yuan Zhao,Ji-fen Zhang (College of Information and Electrical Engineering,Shandong University of Science and Technology,Qingdao 266510,China) College of Information and Electrical Engineering Shandong University of Science and Technology

This paper has discussed the home and abroad’s current situation of temperature monitoring system and compared the advantages and disadvantages of several common *** to cold storage,container, medicines library and greenhouse’s requirements on temperature,this thesis has analyzed the advantages and significance of the system and elaborated each module’s function and implementation based on hardware and software’s introduction and demonstrated the pictures of its practical application and the alarm information saved in the SD card which extracted from the database.

关键词： DS18B20 GSM(Global System for Mobile Communications) SD card Database

Ultra‑High Sensitivity Anisotropic Piezoelectric Sensors for Structural Health Monitoring and Robotic Perception

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第2期17卷 432-446页

作者： Hao yin Yanting li Zhiying Tian Qichao li Chenhui Jiang Enfu liang Yiping Guo State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Beijing Vacuum Electronics Research Institute Beijing 100015People’s Republic of China Fundamental Science On Vibration Shock and Noise LaboratoryState Key Laboratory of Mechanical System and VibrationSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Monitoring minuscule mechanical signals,both in magnitude and direction,is imperative in many application scenarios,e.g.,structural health monitoring and robotic sensing ***,the piezoelectric sensor struggles to satisfy the requirements for directional recognition due to the limited piezoelectric coefficient matrix,and achieving sensitivity for detecting micrometer-scale deformations is also ***,we develop a vector sensor composed of lead zirconate titanate-electronic grade glass fiber composite filaments with oriented arrangement,capable of detecting minute anisotropic *** as-prepared vector sensor can identify the deformation directions even when subjected to an unprecedented nominal strain of 0.06%,thereby enabling its utility in accurately discerning the 5μm-height wrinkles in thin films and in monitoring human pulse *** ultra-high sensitivity is attributed to the formation of porous ferroelectret and the efficient load transfer efficiency of continuous lead zirconate titanate ***,when integrated with machine learning techniques,the sensor’s capability to recognize multi-signals enables it to differentiate between 10 types of fine textures with 100%*** structural design in piezoelectric devices enables a more comprehensive perception of mechanical stimuli,offering a novel perspective for enhancing recognition accuracy.

关键词： Flexible piezoelectric filaments Anisotropic Ultra-high sensitivity Structural health detection Texture recognition

在线全文

学校读者我要写书评

暂无评论

双稳态电磁阀控制方式和动态性能的研究

机械设计与制造 2014年第8期 143-147页

作者：尹永利孙鹏李书灵王隆基中国航天员科研训练中心九室北京100094

航天器中大量采用了自动化程度较高的双稳态电磁阀,其控制方式和动态性能是设计中的重要环节。根据双稳态电磁阀的工作特点,建立电、磁、机系统的机电模型,并对等效电路模型进行了改进。根据多场耦合的特点,考虑到磁性材料的非线性特性... 详细信息

航天器中大量采用了自动化程度较高的双稳态电磁阀,其控制方式和动态性能是设计中的重要环节。根据双稳态电磁阀的工作特点,建立电、磁、机系统的机电模型,并对等效电路模型进行了改进。根据多场耦合的特点,考虑到磁性材料的非线性特性及磁路的漏磁效应,选择有限元法进行仿真计算,并建立了电磁阀的二维有限元模型。电磁阀动态仿真计算数据与试验结果相一致,达到了定量判定出电磁阀所受电磁力大小以及开关放电电流的特征曲线的目的。多耦合场条件下运用有限元法对控制方式进行优化可以提高设计工作的费效比,且能够达到较高的精度,是进行电磁阀优化设计的有效方法。

关键词：双稳态电磁阀机电模型有限元动态仿真