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组合结构空洞缺陷检测压电阻抗数值模拟研究 被引量:7
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作者 温家宇 许斌 王海东 《压电与声光》 CAS CSCD 北大核心 2018年第2期276-279,共4页
钢管混凝土等组合结构在超高层建筑中的应用日益广泛,其核心混凝土的空洞缺陷会严重影响构件的力学性能。该文利用数值模拟法对基于压电阻抗的核心混凝土空洞缺陷检测技术的作用机理进行了深入研究。通过对比有、无缺陷区域的阻抗计算结... 钢管混凝土等组合结构在超高层建筑中的应用日益广泛,其核心混凝土的空洞缺陷会严重影响构件的力学性能。该文利用数值模拟法对基于压电阻抗的核心混凝土空洞缺陷检测技术的作用机理进行了深入研究。通过对比有、无缺陷区域的阻抗计算结果,分析判定缺陷位置,并定义偏差均方根损伤指标来评估测点位置的损伤程度。结果表明,核心混凝土空洞缺陷的存在会导致相应位置的嵌入式压电传感器阻抗频率曲线产生显著变化,所定义的损伤指标可有效识别核心混凝土的空洞缺陷,数值模拟法成功验证了基于压电阻抗法的核心混凝土空洞缺陷检测技术的有效性。 展开更多
关键词 压电陶瓷 压电阻抗法 钢管混凝土结构 空洞缺陷检测 数值模拟 缺陷评价指标
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排水管网健康状况检测及评估技术方法 被引量:11
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作者 方门福 潘文俊 韩葵 《城市勘测》 2018年第A01期82-86,共5页
从深圳地区开展排水管网检测的实践出发,总结排水管道内窥镜检测检测的关键技术及方法、作业流程,健康状况的评价指标及评估技术方法,管道缺陷类型及等级的评价标准,提出管网维护的等级指标及建议。
关键词 排水管道 检测技术 缺陷评价指标 评估方法
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Health related quality of life:is it another comprehensive evaluation indicator of Chinese medicine on acquired immune deficiency syndrome treatment? 被引量:3
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作者 Liu Zhibin Yang Jiping 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2015年第5期600-605,共6页
Health related quality of life(HRQOL) can better reflect changes in acquired immune deficiency syndrome(AIDS) patients and inform economic evaluation of AIDS treatment services,and the assessment of HRQOL can help us ... Health related quality of life(HRQOL) can better reflect changes in acquired immune deficiency syndrome(AIDS) patients and inform economic evaluation of AIDS treatment services,and the assessment of HRQOL can help us to detect problems that may influence the progression of the disease,hence HRQOL has become a particularly important assessment indictor for HIV comprehensive interventions.Being a multi-angle,multi-level,and diversified complex intervention,roles of Chinese medicine(CM) in AIDS treatment have been recognized and accepted by more and more patients,and HRQOL has been widely used to evaluate the comprehensive management effects of CM on AIDS.In this article,the authors analyze the definition and measurement of HRQOL,measurement of HRQOL of HIV/AIDS patients and effects of CM on AIDS,and give some reasonable advices for the usage of the scale of HRQOL.The authors hold that some new HRQOL instruments specific for CM treatment of AIDS should be developed and further prospective studies should be carried out to demonstrate the practicality,reliability and validity of HRQOL as an evaluation indictor for CM treatment of AIDS. 展开更多
关键词 Acquired immune deficiency syndrome HIV Quality of life Chinese medicine traditional Anti retroviral therapy highly active
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