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随着科学技术水平的不断进步及发展,现代手术医疗机器人的作用越来越凸显,以其在手术过程中手术出血量少、失误率低、准确性高以及康复时间短等优点得到了广泛的使用。本文简述了现代手术医疗机器人的发展历程,较为系统的说明了其结构组成及特点,并以应用于微创外科手术中的机器人为例,对此类机器人的机械结构进行分析,提出并设计了一种能够实现9自由度的机械执行机构,为手术机械人的结构设计提供了一定的理论参考。 相似文献
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康复机器人研究与应用进展 总被引:1,自引:1,他引:0
目的随着老龄人口与脑卒中患者数量的不断增加,以及辅助治疗成本的增长,老龄服务及康复需求问题日益突出。康复机器人的开发及应用,将成为未来解决老龄问题的重要手段,具有积极的理论价值和现实意义。它融合了人工智能、机器人学、机械、生物力学、信息科学及康复医学等诸学科相关知识,逐渐发展成为医疗机器人领域的一个重要分支,成为学界研究热点。在此背景下,对康复机器人研究与应用进展进行述评,梳理康复机器人技术的演进历程。方法基于文献成果、大学实验室研究动态及产业调查,分析了康复机器人功能分类、人机交互方式及其关节角度与力矩、肌电信息感知融合与控制、力反馈控制、空间运动检测等关键技术。分析上肢、下肢康复机器人的发展状况。结论提出康复机器人HRI人机交互安全性、人机工程及人机界面设计中存在的问题及发展趋势,以期为学界后续研究提供有益的借鉴。 相似文献
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介绍了一种可在危险环境下作业的遥控机器人--PXJ-Ⅱ排险机器人,分析了其功能指标及结构,简述了以武器系统和传感器为主的机器人辅助系统及其实用意义。 相似文献
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现今机器人自动焊越来越多地受到相关企业的重视,已逐渐成为焊接行业的发展方向,受到企业的青睐。应用焊接机器人技术是焊接领域的革命性进步,它突破了焊接刚性自动化传统方式,开拓了一种柔性自动化新方式。本文主要介绍了机器人焊接智能化技术的总体构成,并对其关键技术—焊接机器人传感技术做了重点研究。 相似文献
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近日由北京航空航天大学机器人研究所、中国人民解放军海军总医院神经外科中心与沈阳医学院附属中心医院联合完成了一例远程遥控机器人立体定向神经外科手术。海军总医院的神经外科专家在北京通过计算机网络 ,遥控远在 6 0 0公里以外的医疗外科机器人系统 ,为沈阳一名 5 2岁脑出血患者成功施行了手术。整个遥控手术持续了 5 0分钟 ,手术后 1个小时 ,患者右腿可以伸曲 ,语言功能也恢复了。这是中国第一例由具有完全知识产权的机器人参与的外科手术。这次异地手术中的关键设备是北京航空航天大学机器人研究所研制的 5自由度医疗外科机器人及其… 相似文献
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Roland Wagner-?Dbler 《Scientometrics》2005,62(1):145-153
Summary This paper discusses the Thomson ISI Research Services Group approaches to analyzing the world research environment, particularly in terms of comparing research performance among nations and institutions. This discussion concentrates on the recent research environment - 1998-2002 - beginning first with comparisons among selected nations overall, in terms of publications - an indicator of research output and productivity; and citations - an indicator of research impact and influence. The second part addresses the German research landscape and concludes with an analysis of the contributions of specific German institutions to Germanys' research performance. 相似文献
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Research competitiveness analysis refers to the measurement, comparison and analysis of the research status (i.e., strength and/or weakness) of different scientific research bodies (e.g., institutions, researchers, etc.) in different research fields. Improving research competitiveness analysis method can be conducive to accurately obtaining the research status of research fields and research bodies. This paper presents a method of evaluating the competitiveness of research institutions based on research topic distribution. The method uses the LDA topic model to obtain a paper-topic distribution matrix to objectively assign the academic impact of papers (such as number of citations) to research topics. Then the method calculates the competitiveness of each research institution on each research topic with the help of an institution-paper matrix. Finally, the competitiveness and the research strength and/or weakness of the institutions are defined and characterized. A case study shows that the method can lead to an objective and effective evaluation of the research competitiveness of research institutions in a given research field. 相似文献
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B2C电子商务信任评价体系及其应用 总被引:5,自引:0,他引:5
提出了一个B2C电子商务信任评价体系,以促进国内实证研究的发展;给出了B2C电子商务信任实证研究的一个具体应用模型,并示范了进行电子商务信任实证研究的方法. 相似文献
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Public research including universities and research institutes is an important source of innovation. This paper describes how a performance feedback model explains the conditions under which firms source external knowledge through universities and research institutes. In the U.S. medical device industry, we show that there is an inverted U-shaped relationship between performance below aspirations and knowledge sourcing from public research. Furthermore, we find that firms respond to historical aspirations more sensitively than social aspirations, and slack resources tend to attenuate the relationship between performance below historical aspirations and knowledge sourcing from public research. 相似文献
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红色设计基因研究是中国设计领域的原创性研究主题,它旨在理清红色设计的发展历史、挖掘红色设计的历史文化资源、洞察红色设计的生成机制及社会作用机制,进而提炼中国当代设计创造性转化、创新性发展的本土资源,并且具有极高的艺术价值。对于设计学研究而言,红色设计基因研究,不仅能够填补以往中国设计史研究的空白,而且为构建中国特色、中国风格、中国气派的设计艺术话语体系提供了重要的理论依据。红色设计基因研究要结合文献学、实地考察、口述历史等多个学科的研究方法,开展系统的理论建构。 相似文献
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Conclusion Design research has a long history dating back to Vitruvius. However, it has only been in the last three decades that a small number of coherent research streams has developed. At the same time there has been an increasing interest by research funding bodies in funding design research. The research of the Design Computing Unit is concerned with developing an understanding of design as a process. It uses the computational paradigm as its starting point and treats design as a very complex form of intelligent human behavior. The results of this research are a better understanding of design as a process rather than design tools. The apparently unique nature of design, namely, how the act of designing changes the stated problem, means that research into design requires more than the simple importation of ideas from other areas. Design research is only now coming to grips with the need to generate its own paradigm. 相似文献
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Spectroscopic measurements at low temperature require liquid nitrogen in some type of research dewar. Often the research dewar must be refilled from a reservoir dewar several times during the course of an experiment. A system is described which automatically refills a research dewar from a reservoir dewar. Two sensors are used for detecting the liquid nitrogen level in the research dewar, and an external nitrogen gas supply is used to provide the pressure to effect the transfer of liquid nitrogen. 相似文献
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Contributing Institutions and Authors in International Business Research: A Quality-Based Assessment
We use a quality-based approach to assess contributing institutions and authors in international business (IB) research. Specifically, we use Google Scholar citations of individual articles to weigh the number of IB research articles in core IB and other non-IB elite journals. Our approach mitigates concerns about the quality difference among articles across different journals and within individual journals. We find evidence to suggest that IB research in the European and Asia-Pacific regions exhibits an upward trend over the 1995–2011 period. With respect to institutional research quality, we document that an IB program with faculty members working with their peers in foreign countries and the presence of a doctoral program can enhance an institution’s research quality. Prolific authors are very mobile and typically have global experience. 相似文献
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目的 为有效促进国内社会创新研究与国际先进水准接轨,构建中国特色社会创新研究,了解和掌握国内外社会创新视角下设计的发展趋向,对相关概念、热点、策略,以及未来研究动向进行了梳理和分析。方法 运用可视化文献数据分析软件VOSviewer和Citespace对Web of Science 核心合集数据库和知网(CNKI)数据库中国内外“社会创新”和“设计”相关文献进行分析,从设计理念、研究方法、研究对象、结果评价四个角度探讨国内外社会创新视角下设计研究发生的变化。结果 提出社会创新视角下设计发展的三大趋向:社会责任与价值取向、设计战略与创新模式、设计理念与研究方法,并构建了协同机制。结论 总结了国内外社会创新视角下设计研究关注焦点的异同、发展趋势和未来研究动向。协同机制的提出,从整体和系统角度阐明三大趋向的逻辑与关联,为应对未来挑战提供了方法论指导。社会创新与设计领域交叉是未来设计研究的重要发展趋向,多学科交融也将是社会发展之必然趋势。 相似文献