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TrustedRBAC——A Distributed Authorization Infrastructure Span Multiple Autonomous Domains

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Wuhan University Journal of Natural Sciences 2004年第5期9卷 694-698页

作者： wangzhi-gang luzheng-ding lirui-xuan wuwei WANGXiao-gang CollegeofComputerScienceandTechnology.HuazhongUniversityofScienceandTechnology.Wuhan130071.Hubei.China

TrustedRBAC is a scalable, decentralized trust-management and access control mechanism for systems that span multiple autonomous domains. We utilize X.509 attri- bute certificates to define trust domains, roles to define controlled activities, and role delegation across domains to represent permissions to these activities. This paper describes the TrustedRBAC model and its scalable design and implementation.

关键词： X.509 attribute certificate RBAC authorization virtual enterprise

Integrating XML with CORBA-Based Multidatabase Systems

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Wuhan University Journal of Natural Sciences 2004年第5期9卷 676-680页

作者： lirui-xuan luzheng-ding wuwei XIAOWei-jun CollegeofComputerScienceandTechnology HuazhongUniversityofScienceandTechnology.Wuhan430074Hubei.China

In this paper, we first introduce the architecture for a CORBA-based multidatabase system and then give an approach of schema mapping between XML and relational database system. Finally, we investigate the ability to apply the integration of XML with CORBA-based multidatabase systems. This integration extends the ability of a CORBA-based multidatabase system to implement data sharing and interoperability. Key words heterogeneity - XML - schema mapping - multidatabase systems CLC number TP311. 13 Foundation item: Supported by the National Key Technologies R&D Program of China(2002BA103A04)Biography: LI Rui-xuan(1974-), male, Ph. D candidate, research interests: heterogeneous information integration.

关键词： heterogeneity XML schema mapping multidatabase systems

Approach in High Precision Topic-Specific Resource Discovery on the Web

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Wuhan University Journal of Natural Sciences 2004年第1期9卷 41-45页

作者： YeWei-guo luzheng-ding SchoolofComputerScienceandTechnology HuazhongUniversityofScienceandTechonologyWuhan430074HubeiChina

The Internet presents numerous sources of useful information nowadays. However, these resources are drowning under the dynamic Web, so accurate finding user-specific information is very difficult. In this paper we discuss a Semantic Graph Web Search (SGWS) algorithm in topic-specific resource discovery on the Web. This method combines the use of hyperlinks, characteristics of Web graph and semantic term weights. We implement the algorithm to find Chinese medical information from the Internet. Our study showed that it has better precision than traditional IR (Information Retrieval) methods and traditional search engines. Key words HITS - evolution web graph - power law distribution - context analysis CLC number TP 391 - TP 393 Foundation item: Supported by the National High-Performance Computation Fund (00303)Biography: Ye Wei-guo (1970-), male, Ph. D candidate, research direction: Web information mining, network security, artificial intelligence.

关键词： HITS evolution web graph power law distribution context analysis

Turbo-Based DNW Algorithm for Compressed Video in VLC Domain

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Wuhan University Journal of Natural Sciences 2005年第1期10卷 297-302页

作者： LINGHe-fei luzheng-ding ZOUFu-hao CollegeofComputerScienceandTechnology HuazhongUniversityofScienceandTechnologyWuhan430074HubeiChina

In order to improve the robustness of the differential number watermarking (DNW) algorithm proposed by us before, we proposed turbo-based DNW (T-DNW) in which the turbo code was employed in the DNW algorithm. The turbo code was used to encode the message prior to watermark embedding and decode the watermark posterior to watermark detection. From the analysis and experiments, the following conclusion could be drawn. The T-DNW algorithm has little higher computational complexity than DNW. And both algorithms have the same performance in terms of watermark visual quality impact. Furthermore, the T-DNW algorithm is much more robust against some common attack than DNW. Although the T-DNW algorithm sacrifices a half payload, we think the achievements are encouraging.

关键词： real time video watermarking Turbo based DNW (T DNW) VLC domain

Astragalus membranaceus(Fisch.)*** by dissolving microneedles achieves systemic therapeutic effects at low doses Author links open overlay panel

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Journal of Traditional Chinese Medical Sciences 2024年第3期11卷 340-350页

作者： Yiwen Chen Zihan Zhou luzheng Zhang Zifan ding Pengyue Li Cong Yan School of Life Sciences Beijing University of Chinese MedicineBeijing 102488China Dongzhimen Hospital Beijing University of Chinese MedicineBeijing 100029China School of Chinese Materia Medica Beijing University of Chinese MedicineBeijing 102488China

Objective:To determine the main components of Astragalus membranaceus(Fisch.)Bge(***,Huang Qi),Astragaloside IV(AIV)and Astragalus polysaccharides(AP),to characterize their properties,evaluate their in vivo efficacy,and to analyze drug diffusion using dissolving microneedle(DMN)technology in ***: Respectively,AIV-and AP-loaded DMNs comprising chitosan(CTS)and polyvinyl alcohol(PVA)were prepared via dual-mold *** morphology,mechanical properties,in vivo solubility,and skin irritation characteristics were *** vivo efficacy was assessed in cyclophosphamide-induced immunosuppressed mice,in vivo diffusion of AIV and AP by DMNs and conventional methods was compared,and the rheological properties of AIV-CTS-PVA and AP-CTS-PVA mixtures were ***: Subcutaneous dissolution and absorption of AIV-CTS-PVA and AP-CTS-PVA microneedles(MNs)at low doses(50%–17%of intraperitoneal AIV injection and 12%–4%of intravenous AP injection)reduced the spleen index and acid phosphatase activity in immunosuppressed mouse models,increased the thymus index,and achieved equivalent or better systemic therapeutic *** with injections,AIV and AP achieved controllable solid-liquid conversion through delivery with CTS-PVA MNs,resulting in highly localized aggregation within 48 h,reducing the initial explosive effect of the drug,and achieving stable and slow drug ***: The present study enhances our understanding of the efficacy and remote effects of drug-loaded DMNs from a traditional Chinese medicine(TCM)perspective,thereby promoting the development of precise and efficient delivery of TCM and further expanding the drug-loading range and application scenarios for DMNs.

关键词： Dissolving microneedle Astragaloside IV Astragalus polysaccharides In vivo diffusion Rheological properties Acupuncture Immunosuppression Drug delivery

Web-Based Information Systems and Applications: A Survey

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Wuhan University Journal of Natural Sciences 2004年第5期9卷 537-541页

作者： XUBao-wen XULei MENGXiao-feng YUGe luzheng-ding HEYan-xiang SHENJun-yi DepartmentofComputerScienceandEngineering.SouthcastUniversity Nanjing210096Jiangsu.China SchoolofInformation.RcnminUniversityofChina.Beijing100872.China DepartmentofCoral.raterScience NorflieasternUniversityShenyang110001.LiaoningChina CollegeofComputerScienceandTechnology HuazhongUniversityofScienceandTechnology.Wuhan130074Hubei.China SchoolofComputer WuhanUniversityWuhan.130072HubeiChina SchoolofElectronicsandInformationEngineering Xi＇anJiaotongUniversityXi＇an710049Shaanxi.China

Biography: XU Bao-wen(1961-), male, Ph.D. Professor, research direction: programming language, software engineering, Web-based technology, etc.

关键词： Web WWW 信息系统因特网数据管理

Naoxintong Capsule for Secondary Prevention of Ischemic Stroke:A Multicenter,Randomized,and Placebo-Controlled Trial

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Chinese Journal of Integrative Medicine 2022年第12期28卷 1063-1071页

作者： YU Xiao-fei ZHU Xu-ying YUAN Can-xing WU Dan-hong ZHAO Yu-wu YANG Jia-jun WANG Chang-de wuwei-wen LIU Xue-yuan LIU Zhen-guo NIE Zhi-yu DENG Ben-qiang BAO Huan LI Long-xuan WANG Chun-yan ZHANG Hong-zhi ZHANG Jing-si HUANG Ji-han GONG Fan WANG Ming-zhe GUO Yong-mei SUN Yan CAI ding-fang Department of Neurology and Institute of NeurologyShuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China Department of Neurology Longhua Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 200030China DepartmentofNeurology Shanghai Third People'sHospitalAffiliatedto Shanghai JiaoTongUniversityShanghai 201900China Department of Neurology Shanghai SixthPeople's Hospital Affiliated to Shanghai Jiao TongUniversityShanghai 200233China Department of Neurology Shanghai Sixth People's Hospital East BranchShanghai 201306China Department of Neurology Shanghai TCM-Integrated Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 200083China Department of Neurology Zhongshan Hospital Qingpu Branch Affiliated to Fudan UniversityShanghai 201799China Department of Neurology Shanghai Tenth People's Hospital Affiliated to Tongji UniversityShanghai 200072China Department of Neurology Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Department of Neurology Shanghai Tongji Hospital Affiliated to Tongji UniversityShanghai 200065China Department of Neurology Changhai HospitalShanghai 200433China Department of Neurology Orient Hospital Affiliated to Tongji UniversityShanghai 200120China Department of Neurology Shanghai Pudong New Area Gongli HospitalShanghai 200135China Department of Neurology Shanghai Yangpu Hospital of Traditional Chinese MedicineShanghai 200090China Center for Drug Clinical Research Shanghai University of Traditional Chinese MedicineShanghai 201203China

Objective:To examine whether the combination of Naoxintong Capsule with standard care could further reduce the recurrence of ischemic stroke without increasing the risk of severe ***:A total of 23 Chinese medical centers participated in this *** patients with a history of ischemic stroke were randomlyassigned ina 1:1ratiousing a blockdesign toreceive eitherNaoxintong Capsule(1.2gorally,twice a day)or placebo in addition to standard *** primary endpoint was recurrence of ischemic stroke within 2 *** outcomes included myocardial infarction,death due to recurrent ischemic stroke,and all-cause *** safety of drugs was *** were analyzed using the intention-to-treat principle.

关键词： ischemic stroke Naoxintong Capsule secondary prevention randomized controlled trial Chinese medicine

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生物基抗菌水凝胶研究进展

复合材料学报 2023年第9期40卷 4972-4984页

作者：戎旭辉陈鲁正娄江丁大森韩文佳齐鲁工业大学(山东省科学院)生物基材料与绿色造纸国家重点实验室济南250353 山东国瓷功能材料股份有限公司东营257092

致病微生物所引起的感染一直以来都威胁着全世界人类的健康,抗菌材料在某种情况下可以被视为抗生素的替代品,其中抗菌水凝胶就是一类重要的高分子抗菌材料。生物基抗菌水凝胶根据基体种类不同主要分为壳聚糖基、纤维素基、淀粉基、海藻... 详细信息

致病微生物所引起的感染一直以来都威胁着全世界人类的健康,抗菌材料在某种情况下可以被视为抗生素的替代品,其中抗菌水凝胶就是一类重要的高分子抗菌材料。生物基抗菌水凝胶根据基体种类不同主要分为壳聚糖基、纤维素基、淀粉基、海藻酸钠基、蛋白质基等,这些基质在自然界具有高丰度,生物相容性及生物可降解性的优点,是制备抗菌水凝胶的理想材料。本文综述了近年来生物基抗菌水凝胶的发展现状及应用领域,着重从生物基抗菌水凝胶的种类、制备和应用3个方面来阐述,最后对生物基抗菌水凝胶所面临的挑战及未来的发展趋势进行了总结和展望。

关键词：抗菌材料生物基复合材料水凝胶抗菌功能敷料

Direct Observation on H-Elimination Enhancement from C_(2)H_(4) through Non-Adiabatic Process by Femtosecond Laser Induced Coulomb Explosion

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Chinese Physics Letters 2024年第5期41卷 17-22页

作者：金无维王春成赵晓戈杨译章任殿相刘泽槿李孝开罗嗣佐丁大军 Institute of Atomic and Molecular Physics Jilin UniversityChangchun 130012China Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy Jilin UniversityChangchun 130012China

Ethylene, the simplest model of a carbon-carbon double bond system, is pivotal in numerous chemical and biological processes. By employing intense infrared laser pump-probe techniques alongside coincidence measurements, we investigate the ultrafast non-adiabatic dynamics involved in the breakage of carbon-carbon double bonds and hydrogen elimination in dissociation of ethylene. Our study entails analyzing the dynamic kinetic energy release spectra to assess three bond-breaking scenarios, movements of nuclei, and structural changes around the carbon atoms. This allows us to evaluate the relaxation dynamics and characteristics of various dissociative states. Notably, we observe a significant rise in the yield of fragments resulting from C–H bond breakage with the delay time extended, suggesting non-adiabatic coupling through conical intersections from C–C bond breakage as a probable cause.

关键词： pump Femto adiabatic