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轨道交通工业控制系统是国家重要的基础设施之一。随着信息技术的迅速发展和网络形势的逐渐严峻，轨道交通工业控制系统信息安全受到了越来越多的关注。分析了轨道交通工业控制系统的系统组成，总结了轨道交通工业控制系统面临的安全威胁种类，举例剖析了轨道交通工业控制系统信息安全风险演化，并进一步对轨道交通工业控制系统信息安全威胁趋势进行了解析。最后，给出了轨道交通工业控制系统信息安全技术的发展建议。

Copyright of Journal of Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical 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 Telecommunications Science is the property of Beijing Xintong Media Co., 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 Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental Science & Technology 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.)

Large buildings would be deformed due to the various mutable factors in actual disasters. When a certain limit is exceeded, it can turn into a disaster. In order to solve this problem, the related research was carried out in this paper. The Gaussian kernel convolution function is introduced, the initial pixel point set is screened by the neighborhood difference, and the corner points is filtered through the idea of the minimum kernel value similarity region. Based on the above three points, an improved algorithm for deformation monitoring of large buildings is proposed and compared with the four corresponding algorithms. The experimental results show that the average correct rate of the improved algorithm in building image deformation monitoring is increased by nearly 15%, and the average detection time is reduced by nearly 21%. It is concluded that the multi-scale detection capability has been improved, the amount of computational data has been reduced, and the accuracy of corner detection has been improved by adopting the improved algorithm in this paper. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical 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 Journal of Tiangong University is the property of Journal of Tianjin Polytechnic University 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 Industrial Minerals & Processing / Huagong Kuangwu yu Jiagong is the property of Industrial Minerals & Processing 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 Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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 probe into the status characteristics and the dynamic change trend of the psychological stress among medical staff at four time points after exposed to blood-borne pathogen. Methods: A longitudinal study was carried out among 78 medical personnel in this study, with 67 of hepatitis B vims, 5 of hepatitis C virus, 4 of HIV and 2 of treponema pallidum respectively. Perceived stress scale (PSS-4), Post-traumatic stress disorder Checklist-5 (PCL-5), Hospital anxiety and depression scale (HADS) were used to assess the psychological status, including perceived stress, post-traumatic stress symptom, anxiety and depression at the four times. Data analysis was performed using repeated measures analysis of variance (RMANOVA) and paired sample t test to explore time effect of the psychological stress reaction in the exposed population. Results: The scores of PSS-4, PCL-5, HADS- A, and HADS-D increased from exposure, and gained highest at one month after exposed, then gradually declined with time <0. 05). Conclusion: It suggests that the levels of perceived stress, post-traumatic stress symptom, anxiety, depression may be the highest at one month after exposed. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To explore the management measures of effective period of medications in outpatient pharmacy. METHODS: According to the work experience and the relevant regulations of drug administration，the management measures of effective period of medications in outpatient pharmacy were summarized. RESULTS： Through scientific management of effective period，the medications were used in the effective period，so as to ensure the medication safety for patients. CONCLUSIONS： The management of effective period of medications in outpatient pharmacy is essential for ensuring the medication safety and reducing the wastage. [ABSTRACT FROM AUTHOR]