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A damage regression identification method for large and complex transmission tower structures subjected to static loads was proposed based on the substructure model reduction and data-driven method. According to the structural features of the transmission tower and its deformation under self-weight and ice loading, the full finite element model for the tower was reduced by means of the sub-structure method, the possible damage modes were predicted and the damage indexes defined. The substructure modeling method was used to reduce the orders of the structure with different damage states, and the order reduction model library was established. The calibration load was determined based on the loading characteristics of the tower, and the strain sensor layout was designed according to the deformation and failure modes. The deformations of all the reduced-order models under calibration loads were numerically simulated with the finite element method, and a dataset was then created. With the data measured by the strain sensors as input and the damage indexes as output, a damage regression identification model was built by the BP neural network algorithm. With the identification model, the damage locations can be recognized and the damage indexes can be quantified. This work lays a foundation for real-time health monitoring of transmission tower structures. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Shanghai Jiao Tong University (1006-2467) is the property of Journal of Shanghai Jiao Tong University Editorial Office 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 Multipurpose Utilization of Mineral Resources / Kuangchan Zonghe Liyong is the property of Multipurpose Utilization of Mineral Resources Editorial Office 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 Multipurpose Utilization of Mineral Resources / Kuangchan Zonghe Liyong is the property of Multipurpose Utilization of Mineral Resources Editorial Office 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 China Mechanical Engineering is the property of Editorial Board of China Mechanical 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.)

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Copyright of Journal of Mechanical & Electrical Engineering is the property of Mechanical & Electrical Engineering Magazine 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 观察慢性萎缩性胃炎、胃癌患者外周血乙醛脱氢酶 1（ALDH1）、胃泌素 17（G-17）水平变化，并探讨 其在胃癌进程中的意义。方法 选择胃癌患者 41 例（胃癌组）、慢性萎缩性胃炎患者 52 例（萎缩性胃炎组）、非萎缩 性慢性胃炎患者 25 例（对照组），采用 ELISA法检测三组外周血 ALDH1、G-17 水平，并分别对三组 ALDH1、G-17 水平 进行相关性分析。结果 胃癌组外周血 ALDH1、G-17 水平均明显高于萎缩性胃炎组和对照组，萎缩性胃炎组外周 血 ALDH1、G-17 水平均明显高于对照组（P 均 <0. 05）。胃癌组外周血 ALDH1与G-17 水平呈正相关关系（r=0. 518、P <0. 05），萎缩性胃炎组外周血 ALDH1与 G-17 水平呈正相关关系（r=0. 632，P<0. 05），对照组外周血 ALDH1 与 G-17 水平无明显相关性（r=0. 208，P>0. 05）。结论 慢性萎缩性胃炎、胃癌患者外周血 ALDH1、G-17 水平均升高，二者共 同参与了慢性萎缩性胃炎进展至胃癌的过程。 [ABSTRACT FROM AUTHOR]

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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 Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control 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.)

OBJECTIVE: To investigate the characteristics of occurrence of adverse drug reactions(ADR) in Wuxi the Eighth People’s Hospital(hereinafter referred to as "our hospital"),so as to provide reference for clinical rational drug application. METHODS: 169 cases of ADR reports collected in our hospital in 2017 were retrospectively analyzed in terms of patients’ genders,ages, drug application, involved organs and(or) systems, clinical manifestations, etc. RESULTS: Of the 169 ADR reports, 149(88.2%) were general ADR cases; 85 cases were male, 84 cases were male; patients aged ≥60 had taken the largest proportion(79 cases, 46.7%). 71 categories of drugs were involved, mainly were antibiotics(75 cases, 44.4%); the ADR-inducing administration route was mainly intravenous drip(121 cases, 71.6%); of the clinical manifestations of ADR, damages in skin and its accessories were the most common. CONCLUSIONS: The occurrence of ADR are related to various factors,hospitals should strengthen "medical-medicine-nursing" co-operation in ADR monitoring, give full play to the role of clinical pharmacists in medication monitoring to ensure rational drug application and reduce or avoid ADR. [ABSTRACT FROM AUTHOR]

Wake-induced galloping is a high risk for a safe operation of electrical transmission system due to dense arrangement of sub-conductors in multi-bundle conductors. To investigate the wake-induced galloping characteristics of eight bundle conductors with extra-high voltage, the variation of aerodynamic forces of each sub-conductor in the eight bundle conductors changing with angle of attack was tested by wind tunnel tests. Because of the wake interaction within subconductors, a relatively distinguishable difference can be observed among the aerodynamic forces of the eight conductors. Especially, when a leeward sub-conductor is in the wake of windward sub-conductor, the drag exerted on the leeward conductor significantly drops. The wake-induced galloping of eight bundle conductors with two span-lengths 308 m and 405 m was numerically simulated by the ABAQUS software. Based on the simulation results, a critical wind speed has been found for the wake-induced galloping. The galloping will not take place when the wind speed is lower than the critical speed. The motion orbit of the sub-conductor is elliptical with wake-induced galloping. Given the same wind speed, the amplitude of the galloping with long span-length is greater than that with short span-length. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Vibration Engineering is the property of Nanjing University of Aeronautics & Astronautics 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 Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control 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.)

OBJECTIVE: To investigate the characteristics of occurrence of adverse drug reactions (ADR) in Wuxi the Eighth People's Hospital (hereinafter referred to as “our hospital”), so as to provide reference for the clinical rational drug use. METHODS: 155 cases of ADR reported to the National ADR Center by our hospital in 2015 were collected, analysis was conducted on patients'gender, age, administration, involving organs and (or) systems, and clinical manifestations, etc. RESULTS: Of the 155 ADR reports, there were more males than females, the number of patients aged ≤10 and >60 years old took the lead, respectively 58 cases (37. 42%) and 66 cases (42. 58%). A total of 8 kinds of drugs were involved, including 50 categories, among which anti-infective drugs dominated the first place (79 cases, 50. 97%). ADR mainly involved organs and (or) systems (77 cases, 47. 24%). The clinical symptoms were performed as skin rash, pruritus and irritation, etc. The most common ADR were induced by intravenous infusion(118 cases, 76. 13%). CONCLUSIONS: The occurrence of ADR are related to various factors, the hospital should strengthen medical, medicine and nursing co-operation in ADR monitoring, minimize the intravenous routes and reduce or avoid the occurrence of ADR, so as to promote the rational drug use in clinic. [ABSTRACT FROM AUTHOR]

目的 探讨血清胃泌素17(G17)、胸苷激酶1(TK1)联合检测辅助诊断胃癌的价值. 方法 选择胃癌患者38例(胃癌组)、胃溃疡患者35例(胃溃疡组)、慢性浅表性胃炎患者32例(对照组) ,采用ELISA法和化学发光结合斑点杂交技术检测各组血清G17、TK1,并进行比较. 以血清G17水平>15 pmol/L为G17阳性、血清TK1水平>2 pmol/L为TK1阳性,联合检测以二者任一指标阳性为联合检测阳性,分析各指标诊断胃癌的敏感性、特异性.结果 对照组、胃溃疡组、胃癌组血清G17、TK1水平逐渐升高,组间两两比较P均<0.05. Pearson相关分析显示,胃癌组血清G17与TK1水平呈正相关(r=0.427,P<0.05). 与单独检测G17和TK1阳性比较,联合检测阳性的敏感性明显升高(P<0.05),特异性无明显变化. 结论 联合检测血清G17、TK1能提高胃癌诊断的敏感性. [ABSTRACT FROM AUTHOR]

Due to the influence of the land roughness, the lower the wind load, the higher turbulence intensity of wind. According to wind tunnel tests, it can be found that the aerodynamic coefficients of iced 8-bundled conductor are significantly different under different turbulence conditions, and the Den Hartog and Nigol coefficients determined by aerodynamic coefficients are also different. Based on the test results, the numerical analysis of the galloping of iced 8-bundled conductor is analyzed, and the response of galloping to the change of turbulence is investigated. The mathematical simulation results of galloping traces show that the galloping amplitudes of the iced conductors and the range of initial attack angle increase obviously under turbulence conditions. Moreover, the effects of different parameters on the galloping of iced 8-bundled conductors are researched. The parameters such as wind velocity, attack angle, and span length on the galloping of the 8-bundled conductors under turbulence wind loads are obtained by numerical method, which offers a theoretical basis for the study of the technique of anti-galloping. [ABSTRACT FROM AUTHOR]