The milling-head machine tool is a sophisticated and high-quality machine tool of which the spindle system is made up of special multi-element structure. Two special mechanical configurations make the cutting performa...The milling-head machine tool is a sophisticated and high-quality machine tool of which the spindle system is made up of special multi-element structure. Two special mechanical configurations make the cutting performance of the machine tool decline. One is the milling head spindle supported on two sets of complex bearings. The mechanical dynamic rigidity of milling head structure is researched on designed digital prototype with finite element analysis（FEA） and modal synthesis analysis （ MSA ） for identifying the weak structures. The other is the ram structure hanging on milling head. The structure is researched to get dynamic performance on cutting at different ram extending positions. The analysis results on spindle and ram are used to improve the mechanical configurations and structure in design. The machine tool is built up with modified structure and gets better dynamic rigidity than it was before.展开更多
目的综合分析国内外头颈癌患者张口困难相关评估工具,为头颈癌患者张口困难评估提供参考。方法系统检索PubMed、Web of Science、CINAHL、Medline、SinoMed、中国知网、万方及维普数据库,追溯参考文献并补充检索灰色文献数据库OpenGrey...目的综合分析国内外头颈癌患者张口困难相关评估工具,为头颈癌患者张口困难评估提供参考。方法系统检索PubMed、Web of Science、CINAHL、Medline、SinoMed、中国知网、万方及维普数据库,追溯参考文献并补充检索灰色文献数据库OpenGrey。检索时限为建库至2024年5月18日。结果纳入18篇文献,汇总出11种头颈癌患者张口困难相关评估工具,其中5种已在中国进行本土化。评估角度分为客观角度、主观角度以及主客观相结合角度;评估目的分为张口困难严重程度、张口困难相关生活质量、康复锻炼。结论现有张口困难相关评估工具较多,特征各异,选择时应综合考虑。未来应对相关评估工具进一步验证与完善,也可应用人工智能技术优化或开发新的张口困难评估工具。展开更多
目的:研究基于提高医疗质量和患者安全的团队策略和工具包(team strategies and tools to enhance performance and patient safety,Team STEPPS)的出院准备护理对股骨头缺血性坏死(ANFH)术后患者的影响。方法:选取清远市人民医院2022年...目的:研究基于提高医疗质量和患者安全的团队策略和工具包(team strategies and tools to enhance performance and patient safety,Team STEPPS)的出院准备护理对股骨头缺血性坏死(ANFH)术后患者的影响。方法:选取清远市人民医院2022年1—8月收治的76例ANFH术后患者为研究对象,采用随机数字表法分为观察组和对照组,各38例。对照组实施术后常规护理,观察组在对照组基础上实施基于Team STEPPS的出院准备护理。对比两组自我管理能力、遵医行为情况。结果:护理后,两组运动锻炼、认知性症状管理与实践、与医生交流得分及总分升高,观察组高于对照组(P<0.05);护理后,两组功能锻炼、工作活动、日常起居、定期复查得分及总分升高,观察组高于对照组(P<0.05)。结论:基于Team STEPPS的出院准备护理可以提高ANFH患者术后居家自我管理能力及遵医行为。展开更多
基金supported by Funding Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality,China.
文摘The milling-head machine tool is a sophisticated and high-quality machine tool of which the spindle system is made up of special multi-element structure. Two special mechanical configurations make the cutting performance of the machine tool decline. One is the milling head spindle supported on two sets of complex bearings. The mechanical dynamic rigidity of milling head structure is researched on designed digital prototype with finite element analysis（FEA） and modal synthesis analysis （ MSA ） for identifying the weak structures. The other is the ram structure hanging on milling head. The structure is researched to get dynamic performance on cutting at different ram extending positions. The analysis results on spindle and ram are used to improve the mechanical configurations and structure in design. The machine tool is built up with modified structure and gets better dynamic rigidity than it was before.
文摘目的综合分析国内外头颈癌患者张口困难相关评估工具,为头颈癌患者张口困难评估提供参考。方法系统检索PubMed、Web of Science、CINAHL、Medline、SinoMed、中国知网、万方及维普数据库,追溯参考文献并补充检索灰色文献数据库OpenGrey。检索时限为建库至2024年5月18日。结果纳入18篇文献,汇总出11种头颈癌患者张口困难相关评估工具,其中5种已在中国进行本土化。评估角度分为客观角度、主观角度以及主客观相结合角度;评估目的分为张口困难严重程度、张口困难相关生活质量、康复锻炼。结论现有张口困难相关评估工具较多,特征各异,选择时应综合考虑。未来应对相关评估工具进一步验证与完善,也可应用人工智能技术优化或开发新的张口困难评估工具。
文摘目的:研究基于提高医疗质量和患者安全的团队策略和工具包(team strategies and tools to enhance performance and patient safety,Team STEPPS)的出院准备护理对股骨头缺血性坏死(ANFH)术后患者的影响。方法:选取清远市人民医院2022年1—8月收治的76例ANFH术后患者为研究对象,采用随机数字表法分为观察组和对照组,各38例。对照组实施术后常规护理,观察组在对照组基础上实施基于Team STEPPS的出院准备护理。对比两组自我管理能力、遵医行为情况。结果:护理后,两组运动锻炼、认知性症状管理与实践、与医生交流得分及总分升高,观察组高于对照组(P<0.05);护理后,两组功能锻炼、工作活动、日常起居、定期复查得分及总分升高,观察组高于对照组(P<0.05)。结论:基于Team STEPPS的出院准备护理可以提高ANFH患者术后居家自我管理能力及遵医行为。
