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| 1 | Providing personalized converged services based on flexible network reconfiguration显示文摘Recent developments show a progressing convergence of networks, services, and applications, which results in the necessity for new approaches to provide a ubiquitous experience on converged networks for specialized high data-rate services. A fundamental diversifying attribute for the future physical network convergence paradigm is pressing. In this paper, we make researches on converged resource reconfiguration model of substrate physical network based on hardware virtualization and provide a service oriented network architecture as a network convergence primitive. Based on the idea of hardware virtualization which is performed by platform deformation and component processing with reconfiguration (here, they are realized as reconfigurable routers (RR)), the substrate converged network, which inter-connects various access networks by reconfigurable routers, could be mapped into multiplex service oriented logical networks, supports dynamic reconfiguration due to diversified quality of services under heterogeneous environment, and therefore provides more flexible and high- speed multiple services. In addition, to demonstrate the generality of our model, we provide a prototype of reconfigurable router. The design, implementation and task scheduling as well as both hardware and software reconfiguration process of reconfigurable router are discussed in detail. Our evaluation shows that reconfigurable router is transparent for upper service-providing networks and results in little performance impact on the service delivery when both hardware and software reconfiguration are used. | HU YuXiang LAN JuLong WU JiangXing | 2011 | Science China(Information Sciences)2011，54，2： | 15 |
| 2 | Review on the progress of ultra-precision machining technologies显示文摘 | Julong YUAN Binghai LYU Wei HANG Qianfa DENG | 2017 | Frontiers of Mechanical Engineering2017，12，2： | 15 |
| 3 | Survivable Virtual Network Mapping Using Optimal Backup Topology in Virtualized SDN显示文摘Software-Defined Network architecture offers network virtualization through a hypervisor plane to share the same physical substrate among multiple virtual networks.However,for this hypervisor plane,how to map a virtual network to the physical substrate while guaranteeing the survivability in the event of failures,is extremely important.In this paper,we present an efficient virtual network mapping approach using optimal backup topology to survive a single link failure with less resource consumption.Firstly,according to whether the path splitting is supported by virtual networks,we propose the OBT-Ⅰ and OBT-Ⅱ algorithms respectively to generate an optimal backup topology which minimizes the total amount of bandwidth constraints.Secondly,we propose a Virtual Network Mapping algorithm with coordinated Primary and Backup Topology(VNM-PBT)to make the best of the substrate network resource.The simulation experiments show that our proposed approach can reduce the average resource consumption and execution time cost,while improving the request acceptance ratio of VNs. | WANG Zhiming WU Jiangxing WANG Yu QI Ning LAN Julong | 2014 | China Communications2014，11，2： | 14 |
| 4 | A New Modified GM (1,1) Model: Grey Optimization Model显示文摘Based on the optimization method, a new modified GM (1,1) model is presented, which is characterized by more accuracy prediction for the grey modeling. | Xiao Xinping College of Scienced, Wuhan University of Technologyl 430063, P R. China Deng Julong Dept. of Control, Huazhong University of Science and Technology, Wuhan 430074,P. R. China | 2001 | Journal of Systems Engineering and Electronics2001，12，2： | 12 |
| 5 | Visible Light Accelerated Vinyl C-H Arylation in Pd-Catalysis:" Application in the Synthesis of ortho Tetra-substituted Vinylarene Atropisomers显示文摘在有 diaryliodonium 盐的乙烯基 arenes 的催化钯的 arylation 的可见轻加速的 C-H functionalization 反应当另外的 photosensitizer 不在时被报导。运动同位素效果(k H /k D ) 从 3.6 被改变(在黑暗下面) 到 1.1 当由可见的光照耀时,它显示 C-H functionalization 步是在黑暗下面决定步的率并且显著地由可见的光的照耀加速了。最后 ortho 的合成有高 enantiospecificity 的代替 tetra 的 vinylarene atropisomers 经由这个协议被认识到。 | Jia Feng Bin Li Julong Jiang Mingkai Zhang Wenbai Ouyang Chunyu Li Yao Fu Zhenhua Gu | 2018 | Chinese Journal of Chemistry2018，36，1： | 7 |
| 6 | Reliable and Load Balance-Aware Multi-Controller Deployment in SDN显示文摘Software Defined Networking(SDN) provides flexible network management by decoupling control plane and data plane. However, such separation introduces the issues regarding the reliability of the control plane and controller load imbalance in the distributed SDN network, which will cause the low network stability and the poor controller performance. This paper proposes Reliable and Load balance-aware Multi-controller Deployment(RLMD) strategy to address the above problems. Firstly, we establish a multiple-controller network model and define the relevant parameters for RLMD. Then, we design the corresponding algorithms to implement this strategy. By weighing node efficiency and path quality, Controller Placement Selection(CPS) algorithm is introduced to explore the reliable deployments of the controllers. On this basis, we design Multiple Domain Partition(MDP) algorithm to allocate switches for controllers according to node attractability and controller load balancing rate, which could realize the reasonable domain planning. Finally, the simulations show that, compared with the typical strategies, RLMD has the better performance in improving the reliability of the control plane and balancing the distribution of the controller loads. | Tao Hu Peng Yi Jianhui Zhang Julong Lan | 2018 | China Communications2018，15，11： | 6 |
| 7 | A Distributed Decision Mechanism for Controller Load Balancing Based on Switch Migration in SDN显示文摘Software Defined Networking(SDN) provides flexible network management by decoupling control plane from data plane. And multiple controllers are deployed to improve the scalability and reliability of the control plane, which could divide the network into several subdomains with separate controllers. However, such deployment introduces a new problem of controller load imbalance due to the dynamic traffic and the static configuration between switches and controllers. To address this issue, this paper proposes a Distribution Decision Mechanism(DDM) based on switch migration in the multiple subdomains SDN network. Firstly, through collecting network information, it constructs distributed migration decision fields based on the controller load condition. Then we choose the migrating switches according to the selection probability, and the target controllers are determined by integrating three network costs, including data collection, switch migration and controller state synchronization. Finally, we set the migrating countdown to achieve the ordered switch migration. Through verifying several evaluation indexes, results show that the proposed mechanism can achieve controller load balancing with better performance. | Tao Hu Peng Yi Jianhui Zhang Julong Lan | 2018 | China Communications2018，15，10： | 6 |
| 8 | EARS: Intelligence-Driven Experiential Network Architecture for Automatic Routing in Software-Defined Networking显示文摘Software-Defined Networking(SDN)adapts logically-centralized control by decoupling control plane from data plane and provides the efficient use of network resources.However,due to the limitation of traditional routing strategies relying on manual configuration,SDN may suffer from link congestion and inefficient bandwidth allocation among flows,which could degrade network performance significantly.In this paper,we propose EARS,an intelligence-driven experiential network architecture for automatic routing.EARS adapts deep reinforcement learning(DRL)to simulate the human methods of learning experiential knowledge,employs the closed-loop network control mechanism incorporating with network monitoring technologies to realize the interaction with network environment.The proposed EARS can learn to make better control decision from its own experience by interacting with network environment and optimize the network intelligently by adjusting services and resources offered based on network requirements and environmental conditions.Under the network architecture,we design the network utility function with throughput and delay awareness,differentiate flows based on their size characteristics,and design a DDPGbased automatic routing algorithm as DRL decision brain to find the near-optimal paths for mice and elephant flows.To validate the network architecture,we implement it on a real network environment.Extensive simulation results show that EARS significantly improve the network throughput and reduces the average packet delay in comparison with baseline schemes(e.g.OSPF,ECMP). | Yuxiang Hu Ziyong Li Julong Lan Jiangxing Wu Lan Yao | 2020 | China Communications2020，17，2： | 4 |
| 9 | Enabling network function combination via service chain instantiation显示文摘 | Guozhen Cheng Hongchang Chen Hongchao Hu Zhiming Wang Julong Lan | 2015 | Computer Networks2015，，： | 2 |
| 10 | A Safe and Reliable Heterogeneous Controller Deployment Approach in SDN显示文摘Software-Defined Networking(SDN)provides flexible and global network management by decoupling control plane from data plane,and multiple controllers are deployed in the network in a logically centralized and physically distributed way.However,the existing approaches generally deploy the controllers with the same type in the network,which easily causes homogeneous controller common-mode fault.To this end,this paper proposes heterogeneous controller deployment in the SDN,considering the different types of controllers and relevant criteria(e.g.,delay,control link interruption rate,and controller fault rate).Then,we introduce a Safe and Reliable Heterogeneous Controller Deployment(SRHCD)approach,consisting of two stages.Stage 1 determines the type and the number of heterogeneous controllers required for the SDN network based on the dynamic programming.Stage 2 divides the SDN network into multiple subnets by k-means algorithm and improves the genetic algorithm to optimize the heterogeneous controller deployment in these SDN subnets to ensure reliable switch-controller communications.Finally,the simulation results show that the proposed approach can effectively reduce the control plane fault rate and increase the attack difficulties.Besides,the switch-controller delay has been lowered by 16.5%averagely. | Peng Yi Tao Hu Yanze Qu Liang Wang Hailong Ma Yuxiang Hu Julong Lan | 2021 | China Communications2021，18，8： | 2 |
| 11 | Discovery of carbon-based strongest and hardest amorphous material显示文摘Carbon is one of the most fascinating elements due to its structurally diverse allo tropic forms stemming from its bonding varieties(sp,sp^(2)and sp^(3)).Exploring new forms of carbon has been the eternal theme of scientific research.Herein,we report on amorphous(AM) carbon materials with a high fraction of sp^(3)bonding recovered from compression of fullerene C_(60) under high pressure and high temperature,previously unexplored.Analysis of photoluminescence and absorption spectra demonstrates that they are semiconducting with a bandgap range of 1.5-2.2 eV,comparable to that of widely used AM silicon.Comprehensive mechanical tests demonstrate that synthesized AM-Ⅲ carbon is the hardest and strongest AM material known to date,and can scratch diamond crystal and approach its strength.The produced AM carbon materials combine outstanding mechanical and electronic properties,and may potentially be used in photovoltaic applications that require ultrahigh strength and wear resistance. | Shuangshuang Zhang Zihe Li Kun Luo Julong He Yufei Gao Alexander V.Soldatov Vicente Benavides Kaiyuan Shi Anmin Nie Bin Zhang Wentao Hu Mengdong Ma Yong Liu Bin Wen Guoying Gao Bing Liu Yang Zhang Yu Shu Dongli Yu Xiang-Feng Zhou Zhisheng Zhao Bo Xu Lei Su Guoqiang Yang Olga P.Chernogorova Yongjun Tian | 2022 | National Science Review2022，9，1： | 2 |
| 12 | Introduction to grey system theory显示文摘 | Julong D | 1989 | The Journal of Grey System1989，1，1： | 1 |
| 13 | A novel GM(1,1) model for non-equigap series显示文摘 | Deng Julong | 1997 | The J of Grey System1997，，2： | 1 |
| 14 | The control problems of grey systems显示文摘 | Deng Julong | 1982 | Systems & Control Letters1982，，5： | 1 |
| 15 | Introduction to gray system theory显示文摘 | Den Julong | 1989 | The Journal of Gray System1989，11，1： | 1 |
| 16 | Transformation in grey inference显示文摘 | Deng Julong | 1997 | The Journal of Grey System1997，9，4： | 1 |
| 17 | Cause of brittle tool exit failure in intermittent cutting显示文摘 | ITan Guangyu Yuan Julong Wang Xinlong and Yuan Zhejun | 1997 | Journal of Harbin Institute of Technology (English Edition)1997，4，2： | 1 |
| 18 | Greyness and uncertainty显示文摘 | Deng Julong | 1995 | Journal of Grey System1995，7，3： | 1 |
| 19 | Transformation in Grey Inference显示文摘 | Deng Julong | 1997 | The Journal of Grey System1997，9，4： | 1 |
| 20 | Positional Target in Grey Target Theory显示文摘 | Julong D | 2000 | The Journal of Grey System2000，，1： | 1 |
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