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为解决传统抗震支吊架采用“硬抗”的方式抵抗地震作用的问题，并减小传统抗震支吊架的震后残余变形，提出一种新型自复位耗能抗震支吊架。采用ABAQUS有限元软件分别对自复位耗能抗震支吊架和传统抗震支吊架进行有限元模拟，对比分析二者的应力及变形特性、滞回性能来验证所提自复位耗能抗震支吊架的抗震性能；通过建立不同参数的支吊架模型并对滞回性能进行参数分析，得到抗震斜撑复位比、刚度比和摩擦系数对自复位耗能抗震支吊架滞回性能的影响规律，并给出相应参数的取值建议；以支吊架响应峰值加速度作为工程需求参数，以支吊架破坏作为损伤极限状态，得到两种抗震支吊架的易损性曲线。结果表明：抗震斜撑复位比、刚度比和摩擦系数的取值范围分别为1.0~1.5、1.0~1.5和0.1~0.3时，自复位耗能抗震支吊架具有较好的滞回特性；新型自复位耗能抗震支吊架具有更强的鲁棒性，能够更好地保障管道系统的使用功能。

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Engineering Management & Technology Discussion is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的对2 084例急性呼吸道感染患儿的鼻咽分泌物中百日咳鲍特菌的核酸检测结果进行分析。方法2 084例急性呼吸道感染患儿,采集鼻咽抽吸物标本,采用基因序列设计的百日咳鲍特菌IS481靶位特异性引物,对鼻咽抽吸物标本进行荧光定量PCR扩增,随机取阳性扩增产物进行核苷酸序列测定,并将所测序列在Gen Bank中进行比对。对不同性别、年龄段、发病季节百日咳鲍特菌的阳性检出率进行统计学分析。结果鼻咽抽吸物标本中百日咳鲍特菌阳性率为2.21%(46/2 084),不同性别、年龄段、发病季节患儿鼻咽抽吸物标本百日咳鲍特菌阳性检出率差异有统计学意义(χ2分别为4.186,58.163,13.428; P均<0.05)。结论急性呼吸道感染患儿百日咳鲍特菌感染阳性率较高。 [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Contemporary Pediatrics is the property of Xiangya Medical Periodical Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)