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Experimental demonstration of a quantum downstream access network in continuous variable quantum key distribution with a local local oscillator

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Photonics Research 2024年第6期12卷 1262-1273页

作者： DENGKE QI XIANGYU WANG ZHENGHUA LI JIAYU MA ZIYANG CHEN yueming lu SONG YU State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsBeijing 100876China Key Laboratory of Trustworthy Distributed Computing and Service(MoE) Beijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronicsand Center for Quantum Information TechnologyPeking UniversityBeijing 100871China

Quantum networks provide opportunities and challenges across a range of intellectual and technical frontiers,including quantum computation,communication,and *** traditional communication networks,quantum networks utilize quantum bits rather than classical bits to store and transmit *** key distribution(QKD)relying on the principles of quantum mechanics is a key component in quantum networks and enables two parties to produce a shared random secret key,thereby ensuring the security of data *** this work,we propose a cost-effective quantum downstream access network structure in which each user can get their corresponding key information through terminal *** on this structure,we demonstrate the first four-end-users quantum downstream access network in continuous variable QKD with a local local *** contrast to point-to-point continuous variable QKD,the network architecture reevaluates the security of each user and accounts for it accordingly,and each user has a lower tolerance for excess noise as the overall network expands with more ***,the feasibility of the experiment is based on the analysis of the theoretical model,noise analysis,and multiple techniques such as the particle filter and adaptive equalization algorithm used to suppress excess *** results show that each user can get a low level of excess noise and can achieve secret key rates of 546 kbps,535 kbps,522.5 kbps,and 512.5 kbps under a transmission distance of 10 km,respectively,with the finite-size block of 1×10~*** not only verifies the good performance but also provides the foundation for the future multi-user quantum downstream access networks.

关键词： quantum oscillator local

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An Alternative-Service Recommending Algorithm Based on Semantic Similarity

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China Communications 2017年第8期14卷 124-136页

作者： Kun Guo Yonghua Li yueming lu Key Laboratory of Trustworthy Distributed Computing and Service Ministry of EducationBeijing University of Posts and TelecommunicationsBeijingChina

With the development of the Internet of Things(Io T), people's lives have become increasingly convenient. It is desirable for smart home(SH) systems to integrate and leverage the enormous information available from IoT. Information can be analyzed to learn user intentions and automatically provide the appropriate services. However, existing service recommendation models typically do not consider the services that are unavailable in a user's living environment. In order to address this problem, we propose a series of semantic models for SH devices. These semantic models can be used to infer user intentions. Based on the models, we proposed a service recommendation probability model and an alternative-service recommending algorithm. The algorithm is devoted to providing appropriate alternative services when the desired service is unavailable. The algorithm has been implemented and achieves accuracy higher than traditional Hidden Markov Model(HMM). The maximum accuracy achieved is 68.3%.

关键词： activity recognition semantic model service recommendation unavailable service

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WEB-BASED VIRTUAL CNC MACHINE MODELING AND OPERATION

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Chinese Journal of Mechanical Engineering 2007年第6期20卷 109-113页

作者： HE Hanwu WU yueming GU Yaoda lu Yongming Faculty of Electromechanical Engineering Guangdong University of Technology Guangzhou 510090 China

A CNC simulation system based on intemet for operation training of manufacturing facility and manufacturing process simulation is proposed. Firstly, the system framework and a rapid modeling method of CNC machine tool are studied under the virtual environment based on PolyTrans and CAD software. Then, a new method is proposed to enhance and expand the interactive ability of virtual reality modeling language（VRML） by attaining communication among VRML, JavaApplet, JavaScript and Html so as to realize the virtual operation for CNC machine tool. Moreover, the algorithm of material removed simulation based on VRML Z-map is presented. The advantages of this algorithm include less memory requirement and much higher computation. Lastly, the CNC milling machine is taken as an illustrative example for the prototype development in order to validate the feasibility of the proposed approach.

关键词： Virtual reality CNC machine tools Machining simulation Virtual reality modeling language (VRML) Virtual operation

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A User-Centric Approach to Activity Recognition and Guidance in Semantic Smart Home

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China Communications 2015年第S2期12卷 103-113页

作者： LI Haitao GUO Kun lu yueming LI Yonghua South China University of Technology Guangdong Power Grid Co. Ltd Key Laboratory of Trustworthy Distributed Computing and Service (BUPT) Ministry of Education

Wireless smart home system is to facilitate people's lives and it trend to adopt a more intelligent way to provide services. It is very desirable in the recent SH market for the system to recognize users' behaviors and automatically response the corresponding activities to satisfy users' actual demands. However, activity models in the existing approaches are usually defined separately through knowledge-driven methods. These approaches cause that the activity models can't be matched with the services dynamically. To address the problem, we develop the semantic association model and a novel approach of activity recognition and guidance is presented. In our approach, the smart devices and users' requirements are described by semantic models. When the requirements are detected and understood, smart gateway can provide appropriate services, achieving activity assistance. The semantic association model allows all related elements in smart home connect with each other logically. The approach has been implemented and the results show that the success rate of the approach based on semantic association model is higher than 33% at average as compared to the approach based on predefined models. The proposed approach can effectively help people who are in trouble with learning or remembering in the common life.

关键词： Internet of Things smart home activity recognition activity guidance semantic model

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Comprehensive Information Security Evaluation Model Based on Multi-Level Decomposition Feedback for IoT

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Computers, Materials & Continua 2020年第10期65卷 683-704页

作者： Jinxin Zuo yueming lu Hui Gao Ruohan Cao Ziyv Guo Jim Feng School of Cyberspace Security Beijing University of Posts and TelecommunicationsBeijing100876China School of Information and Communication Engineering Beijing University of Posts and Telecommunica-tionsBeijing100876China Key Laboratory of Trustworthy Distributed Computing and Service(BUPT) Ministry of EducationBeijing100876China Amphenol Global Interconnect Systems San JoseCA 95131USA

The development of the Internet of Things(IoT)calls for a comprehensive in-formation security evaluation framework to quantitatively measure the safety score and risk(S&R)value of the network *** this paper,we summarize the architecture and vulnerability in IoT and propose a comprehensive information security evaluation model based on multi-level decomposition *** evaluation model provides an idea for information security evaluation of IoT and guides the security decision maker for dynamic ***,we establish an overall evaluation indicator system that includes four primary indicators of threat information,asset,vulnerability,and management,*** also includes eleven secondary indicators of system protection rate,attack detection rate,confidentiality,availability,controllability,identifiability,number of vulnerabilities,vulnerability hazard level,staff organization,enterprise grading and service continuity,***,we build the core algorithm to enable the evaluation model,wherein a novel weighting technique is developed and a quantitative method is proposed to measure the S&R ***,in order to better supervise the performance of the proposed evaluation model,we present four novel indicators includes residual risk,continuous conformity of residual risk,head-to-tail consistency and decrease ratio,*** results show the advantages of the proposed model in the evaluation of information security for IoT.

关键词： IoT information security quantitative evaluation safety score residual risk

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Security-Critical Components Recognition Algorithm for Complex Heterogeneous Information Systems

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Computers, Materials & Continua 2021年第8期68卷 2579-2595页

作者： Jinxin Zuo yueming lu Hui Gao Tong Peng Ziyv Guo Tong An Enjie Liu School of Cyberspace Security Beijing University of Posts and TelecommunicationsBeijing100876China Key Laboratory of Trustworthy Distributed Computing and Service(BUPT) Ministry of EducationBeijing100876China School of Information and Communication Engineering Beijing University of Posts and TelecommunicationsBeijing100876China University of Bedfordshire Institute for Research in Applicable Computing(IRAC)LutonUK

With the skyrocketing development of technologies,there are many issues in information security quantitative evaluation(ISQE)of complex heterogeneous information systems(CHISs).The development of CHIS calls for an ISQE model based on security-critical components to improve the efficiency of system security evaluation *** this paper,we summarize the implication of critical components in different filed and propose a recognition algorithm of security-critical components based on threat attack tree to support the ISQE *** evaluation model establishes a framework for ISQE of CHISs that are updated ***,with the support of asset identification and topology data,we sort the security importance of each asset based on the threat attack tree and obtain the security-critical components(set)of the ***,we build the evaluation indicator tree of the evaluation target and propose an ISQE algorithm based on the coefficient of variation to calculate the security quality value of the ***,we present a novel indicator measurement uncertainty aiming to better supervise the performance of the proposed *** results show the advantages of the proposed algorithm in the evaluation of CHISs.

关键词： Complex heterogeneous information system security-critical component threat attack tree information security quantitative evaluation

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BALF tNGS在老年人肺结核诊断中的价值

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中国基层医药 2024年第7期31卷 961-964页

作者：马永贞程东帅陆月明上海德济医院青岛大学上海临床医学院呼吸内科上海200030

目的探讨通过支气管肺泡灌洗液(BALF)应用靶向高通量测序技术(tNGS)在肺部感染性疾病中发现老年人肺结核的诊断价值。方法采用横断面研究, 分析上海德济医院2021年1月至2023年7月收治的肺部感染性疾病患者370例的临床资料, 经支气管镜... 详细信息

目的探讨通过支气管肺泡灌洗液(BALF)应用靶向高通量测序技术(tNGS)在肺部感染性疾病中发现老年人肺结核的诊断价值。方法采用横断面研究, 分析上海德济医院2021年1月至2023年7月收治的肺部感染性疾病患者370例的临床资料, 经支气管镜检留取BALF样本370份, 通过tNGS确诊肺结核患者28例。通过电子病案系统调取28例患者的临床资料, 分析患者年龄、临床特征、合并疾病、发现方式、影像学表现及病原学检测结果。结果患者年龄范围70~93岁, 中龄组(> 70~80岁)16例, 高龄组(> 80岁)12例;临床表现:乏力9例(32.1%), 咳嗽、咳痰8例(29.6%), 胸闷4例(14.3%), 食欲减退4例(14.3%), 体质量减轻3例(10.7%);合并糖尿病12例, 合并肺部感染性疾病10例, 合并肺癌4例, 合并肝肾功能不全2例;均通过tNGS检测被动确诊肺结核;影像学表现累及2个及以上多肺野病变24例(85.7%), 与累及单肺野4例(14.3%)相比差异有统计学意义(χ^(2)=25.79, P<0.001);28例患者传统病原学检测阳性率为14.3%, 与BALF tNGS相比, 差异有统计学意义(χ^(2)=68.55, P<0.001)。结论老年人肺结核起病隐匿, 合并症多导致临床症状及影像学无特异性, 病原学阳性检出率低, 非结核病定点医院在呼吸道感染性疾病中开展支气管BALF tNGS能提高老年肺结核患者的阳性检出率, 为老年人肺结核的早诊、早治及防止传播提供帮助。

关键词：结核,肺呼吸道感染支气管镜检查支气管肺泡灌洗液高通量核苷酸序列分析诊断老年人

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A Secure Interaction and Control Method for InterClouds Services

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China Communications 2015年第S2期12卷 132-137页

作者： GAN Jiefu PENG Li lu yueming China Information Security Certification Center School of Information and Communication Engineering Beijing University of Posts and Telecommunications Key Laboratory of Trustworthy Distributed Computing and Service (BUPT) Ministry of Education

Inter-clouds services build information bridges over computing clouds so as to provide the convenience for electronic commerce and other information services. However, the interactions between clouds have challenges in information disclosure, services spoofing and information inconsistent. This paper proposes a secure interaction and control method for inter-clouds services, which uses information encryption, digital signature,time logic control means, to protect users' privacy and keep the integrity and consistency of cloud customers' request information, and prevent the spoofing of information requests. The results show that the method could prevent the spoofing well in a stable network environment and improve the security of clouds sessions.

关键词： inter-clouds services encryption signature spoofing

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Ring Protection and Survivability Mechanisms for Packet Transport Networks

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ZTE Communications 2010年第3期8卷 17-21页

作者： lu yueming Key Laboratory of Information Photonics and Optical Communications of Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 P. R. China

Packet Transport Networks （PTNs） must resolve issues in their protection and recovery mechanisms. These issues include the detection performance of Operation, Administration and Maintenance （CAM）, network resource optimization, resource allocation deadlock, and resource deployment blocking. Traditional protection and recovery mechanisms cannot meet the requirements of PTN. In order to improve the protection and recovery performance, network resource use, probability of service recovery, and to decrease the probability of service blocking, this paper introduces overlapped segment shared protection, Pre-configured Multi-Cycle （P-recycle）, conflict-free algorithm, and delay restoration algorithm. Only with appropriate protection and restoration mechanisms is it possible to achieve smooth evolution from TDM networks to integrated packet-based bearer networks and all-IP services.

关键词： detection performance of service delay restoration network issues Traditional Maintenance integrated Operation In order improve paper use TDM OAM

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The Problem of Preventing Collisions of the Ship based on AIS

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现代交通（中英文版） 2014年第1期3卷 8-12页

作者： yueming lu Yidong Xue Pilotage Section Shanghai Pilot Station 20F 908 Dong Daming Road Shanghai Shanghai 200082 China

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