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RISS 인기검색어
- 검색키워드
- 저자 : Hongyan Xing (검색결과 5 건)
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Hongyan Xing,Xu Yang,Jinyu Zhang 대한전기학회 2019 Journal of Electrical Engineering & Technology Vol.14 No.6
In order to accurately obtain the location of thunderstorm cloud and improve the accuracy and stability of thunderstorm cloud localization, a thunderstorm cloud localization algorithm of a three-dimensional atmospheric electric feld apparatus is proposed. An electric feld measurement model is established, and the localization parameters are defned based on the model. According to the theory of mirror method, the potential distribution of the thunderstorm cloud at the atmospheric electric feld apparatus is obtained. Using the potential distribution formula, the three-dimensional electric feld components are derived and the thunderstorm cloud coordinates are obtained. The relationship between the electric feld component measurement error, the azimuth angle, the elevation angle and the ranging and direction-fnding accuracy is given, and the localization performance is analyzed. The results show that the method has a ranging error rate of about 5% and a directionfnding error rate of about 3%, which has a good localization efect.
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The Research and Implementation of Temporal Quasi-order Data Index
Xiuqin Deng,Hongyan Xing,Chengyan Fang,Xiaoping Ye 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.1
This study proposed a quasi-order-based temporal data structure (QOTDS) which differed from conventional, algebraic data management models. Based on this QOTDS, a temporal data index called the temporal quasi-order index (TQOindex) was established. Firstly, the study proposed the concepts of temporal quasi-order (TQO) and linear order partitioning (LOP) of time period sets and discussed the construction algorithm of LOP and the optimum (minimum) properties. On this basis, a temporal data structure was established based on LOP. This structure realized the set-at-a-time data operation-like relational data structure and improved the inquiry efficiency by using multiple threads. Subsequently, in the structural framework of TQO, we discussed the temporal data index (TQOindex) based on quasi-order extensions. This index was effectively applicable to various conventional database platforms depending on the disk (external memory)-based data management and also to big data dynamic index technology relying on the incremental updating mechanism. Finally, a corresponding experimental simulation and comparative evaluation were designed to verify the feasibility and effectiveness of TQOindex. Research and experiments showed that QOTDS were effective at temporal inquiry and management in cases involving the temporal processing and integration mechanisms in new data, such as semantic data, XML data, and moving object data.
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Carbon Medicine in Ancient China
Hongyan Yang,Zengxiang Fu,Xingli Huang,Binrui Ma 한국탄소학회 2005 Carbon Letters Vol.6 No.4
In traditional Chinese medicine, some herbs are used after toasting or roasting. The process is called "Zhi Tan" in Chinese, which means charring, and the herbs after the treatment is called carbon medicine. Carbon medicine is widely used to arrest bleeding in traditional Chinese medicine. The paper introduces the records, development and applications of carbon medicine in ancient China. The earliest record found about carbon medicine was in the remains of Han dynasty (BC206-A.D.8). The paper also introduces the process of charring herbs and mechanism of carbon medicine in arresting bleeding. Calcium iron and tan released during the charring are believed as main factors for arresting bleeding, helped with porous surface structure of active carbon.
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Carbon Medicine in Ancient China
Yang, Hongyan,Fu, Zengxiang,Huang, Xingli,Ma, Binrui Korean Carbon Society 2005 Carbon Letters Vol.6 No.4
In traditional Chinese medicine, some herbs are used after toasting or roasting. The process is called "Zhi Tan" in Chinese, which means charring, and the herbs after the treatment is called carbon medicine. Carbon medicine is widely used to arrest bleeding in traditional Chinese medicine. The paper introduces the records, development and applications of carbon medicine in ancient China. The earliest record found about carbon medicine was in the remains of Han dynasty (BC206-A.D.8). The paper also introduces the process of charring herbs and mechanism of carbon medicine in arresting bleeding. Calcium iron and tan released during the charring are believed as main factors for arresting bleeding, helped with porous surface structure of active carbon.
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A major role for microRNAs in glioblastoma cancer stem-like cells
Hong Wei Yang,Hongyan Xing,Mark D. Johnson 대한약학회 2015 Archives of Pharmacal Research Vol.38 No.3
Studies have demonstrated that miRNAs contributeto the maintenance and phenotype of in several cancertypes. This review will focus on the roles of a few wellstudied miRNAs in cancer stem-like cells of glioblastoma.
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