Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-20 Cooperative journals: 《计算机应用研究》
Abstract： Based on understanding of theory and practice, Handle System will coexist with the Domain Name System for a long time in the future, however, resolution protocols and identifier code rules of two identifier resolution system are incompatibility, leading to a barrier between data space of them. Therefore, it is urgent for us to resolve the connectivity problem of two identifier resolution system currently. By analyzing pros and cons of existing solutions, we found that the separation of protocol data unit and protocol can solve the incompatibility problem of resolution protocol and identifier code rule of two systems. Based on such a separation mechanism, inter-operation mechanism of Handle System and Domain Name System based on the proxy server was developed. Simulation experiments show that compared with traditional client-server ones, the response time of this new mechanism increases a little and is within the acceptable range.
Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2020-06-22 Cooperative journals: 《干旱区研究》
Abstract：降水是干旱半旱地区土壤水分的主要来源，对该区植被恢复具有重要意义。本文采用EC-5土壤水分传感器对2014—2015年0~120 cm土壤水分进行连续监测，研究了退耕后不同恢复年限草地土壤水分动态变化及其0~40 cm土壤10 min时间尺度土壤水分对降水的响应。结果表明：土壤水分从恢复5 a草地向恢复15 a草地逐渐降低，这种降低趋势在恢复30 a草地减弱。恢复5 a草地土壤水分增幅最小，响应次数最少。单次降雨事件中，土壤水分增长过程和衰减过程均符合Logistic模型。恢复5 a草地相对稳定期(平台期)历时最长；恢复15 a草地土壤水分在表层(0~5，5~10 cm)增速最快，而在下层(20~40 cm)增速减慢且响应时间滞后；恢复30 a草地在下层(20~40 cm)增速最快。建议对恢复草地应适当采取措施，促进降雨向深层土壤水分转化，并减少恢复初期平台期历时。
Subjects: Library Science，Information Science >> Library Science submitted time 2023-04-10
Abstract： Significance Through a survey of medical staff and students at Beijing University of Traditional Chinese Medicine, it was found that their intellectual property literacy is relatively weak. Process A survey was conducted on the attitudes of teachers and students towards intellectual property literature and information, as well as their demand for intellectual property literature and information services, through the distribution of survey questionnaires through the internal network of the Library of Beijing University of Traditional Chinese Medicine Conclusion: College students and graduate students themselves neglect the cultivation and improvement of intellectual property literacy. Universities also do not attach enough importance to intellectual property education. Propose to combine self-learning of college students with educational guidance from universities, comprehensively enhance the intellectual property literacy of college students, and implement the national intellectual property quality education strategy.
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