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Research and Implementation of IP - VPN

Li Xiuzhong

Strategic Study of CAE 2002, Volume 4, Issue 3,   Pages 84-91

Abstract:

Recently, IP - VPN is proposed as a way satisfying large company´s inter-connect requirement because of the prevalence of Internet. But there are some problems to be solved, especially security and QoS. In this paper, one way of network-based VPN QoS is proposed based on analysis of some available QoS algorithms. For IP - VPN, now there are several mechanisms： VLL, VPRN, VPLS and VPDN. This paper places emphasis on VPRN and VPLS. Two kinds of VPRN: BGP/MPLS and VR are discussed and compared with each other. And besides, VLAN, one way of VPLS, is introduced.

Keywords： segment (VPLS)     border gateway protocol / multi-protocol label switch (GP/MPLS)     virtual router (VR)     worst-caseweighted fair queue (WF2Q)     random early detection (RED)    

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Minimization of total energy consumption in an m-machine flow shop with an exponential time-dependent learning effect

Lingxuan LIU, Zhongshun SHI, Leyuan SHI

Frontiers of Engineering Management 2018, Volume 5, Issue 4,   Pages 487-498 doi: 10.15302/J-FEM-2018042

Abstract: A worst-case analysis on shortest process time heuristic is conducted for theoretical measurement.

Keywords： flow shop     energy-aware scheduling     learning effect     nested partition     worst-case error bound    

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Study and Performance Analysis of TT - FPS Based on CAN Bus

Lu Weijie,Liu Luyuan,Wang Yixin

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 45-48

Abstract: based on time-triggered architecture (TT - FPS) is presented, and the approach for calculating the worst-case

Keywords： CAN bus     TT-FPS     the worst-case response time    

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Robust mismatched filtering algorithm for passive bistatic radar using worst-case performance optimization Research Articles

Gang Chen, Jun Wang,chengang_xidian@163.com,wangjun@xidian.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 7,   Pages 963-1118 doi: 10.1631/FITEE.1900150

Abstract: detects targets by exploiting available local broadcasters and communication transmissions as illuminators, which are not designed for radar. The signal usually contains a time-varying structure, which may result in high-level range ambiguity sidelobes. Because the mismatched filter is effective in suppressing sidelobes, it can be used in a . However, due to the in the reference signal, the sidelobe suppression performance seriously degrades in a system. To solve this problem, a novel algorithm is developed using . In this algorithm, the influence of the low energy level in the reference signal is taken into consideration, and a new cost function is built based on . With this optimization, the mismatched filter weights can be obtained by minimizing the total energy of the ambiguity . Quantitative evaluations and simulation results demonstrate that the proposed algorithm can realize sidelobe suppression when there is a low-energy reference signal. Its effectiveness is proved using real data.

Keywords： 外辐射源雷达；距离副峰；低信噪比；失配滤波；最差性能最优    

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evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2

Xiaoyan Chen,Wenxia Xiao,Xinchun Li,Jianxun He,Xiaochun Huang,Yuyu Tan

Frontiers of Medicine 2014, Volume 8, Issue 4,   Pages 471-476 doi: 10.1007/s11684-014-0365-8

Abstract:

This work aims to estimate the value of diffusion weighted imaging (DWI) and diffusion tensor imaging(DTI) in detecting early-stage kidney injury in type 2 diabetic patients with normoalbuminuria (NAU)A total of 30 T2DM patients with normal kidney function were recruited and assigned to the NAU groupAccording to DWI with a b value of 400 s/mm2, the MAU and NAU groups showedThe mean ADC in the MAU group [(2.22±0.07)×10–3 mm2/s]

Keywords： type 2 diabetes mellitus     microalbuminuria     diffusion weighted imaging     diffusion tensor imaging     early-stage    

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A rare case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation

Xiaofeng Shi, Rong Ba, Haiyan You, Qian Jiang, Jiansong Huang, Jianhua Mao, Lanxiu Han, Shuo Zhang, Qin Zhuang, Xianqiu Yu, Lixia Wang, Yun Wang, Dongya Li, Wei Zhu, Yong Zhang, Yan Zhu, Xiaodong Xi

Frontiers of Medicine 2018, Volume 12, Issue 3,   Pages 324-329 doi: 10.1007/s11684-017-0558-z

Abstract: At present, only one case of SLVL with t(8;14)(q24;q32) translocation has been reported.In this study, we report a case of B-lymphoproliferative disorder with villous lymphocytes harboringt(8;14)(q24;q32) chromosome translocation that we inclined to SLVL with a prolymphocytic transformationThe karyotype showed complex abnormality: 46XX,+3,−10, t(8;14)(q24;q32)[11]/46XX[9].In this report, we described an unusual case of B-lymphoproliferative disorder with villous lymphocytes

Keywords： splenic lymphoma with villous lymphocytes     splenic marginal zone lymphoma     transformation     chromosome translocation    

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Sb2Te3 topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched Research

Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3,   Pages 287-436 doi: 10.1631/FITEE.2000577

Abstract: saturable absorber (SA) of the family was first applied experimentally in a wideband tunable passively Q-switchedMeanwhile, stable wavelength-tunable passive Q-switching pulse operation was obtained in a Yb-doped fiber

Keywords： 拓扑绝缘体；Sb2Te3；光纤激光；被动调Q激光；波长可调谐激光    

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Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber Research

Junshan He, Guohua Zeng, Shaoxian Liu, Haiming Lu, Ruixian Xie, Jingjing Qi, Lili Tao, Bo Zhou,taoll@gdut.edu.cn,zhoubo@scut.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3,   Pages 287-436 doi: 10.1631/FITEE.2000339

Abstract: study the exfoliation of ultrathin ReS nanosheets from the prepared ReS powder and their application to Q-switchedduration of 2.4 μs and an output power of 1.25 mW are obtained, indicating the potential application to Q-switched

Keywords： 二硫化铼；可饱和吸收体；二维材料；调Q光纤激光器    

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Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 448-455 doi: 10.1007/s11709-014-0262-x

Abstract: From classification and its application in these case studies, it is pointed out that the method

Keywords： JH classification     Q and RMR classification     new method    

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Minimax Q-learning design for H∞ control of linear discrete-time systems Research Articles

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 438-451 doi: 10.1631/FITEE.2000446

Abstract: The method is an effective approach for attenuating the effect of disturbances on practical systems, but it is difficult to obtain the ler due to the nonlinear Hamilton–Jacobi–Isaacs equation, even for linear systems. This study deals with the design of an ler for linear discrete-time systems. To solve the related game algebraic Riccati equation (GARE), a novel model-free method is developed, on the basis of an offline algorithm, which is shown to be Newton’s method for solving the GARE. The proposed method, which employs off-policy , learns the optimal control policies for the controller and the disturbance online, using only the state samples generated by the implemented behavior policies. Different from existing -learning methods, a novel gradient-based policy improvement scheme is proposed. We prove that the method converges to the saddle solution under initially admissible control policies and an appropriate positive learning rate, provided that certain persistence of excitation (PE) conditions are satisfied. In addition, the PE conditions can be easily met by choosing appropriate behavior policies containing certain excitation noises, without causing any excitation noise bias. In the simulation study, we apply the proposed method to design an load-frequency controller for an electrical power system generator that suffers from load disturbance, and the simulation results indicate that the obtained load-frequency controller has good disturbance rejection performance.

Keywords： H∞ control     Zero-sum dynamic game     Reinforcement learning     Adaptive dynamic programming     Minimax Q-learning    

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Learning natural ordering of tags in domain-specific Q&A sites

Junfang Jia, Guoqiang Li,jiajunfang816@163.com,li.g@sjtu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 2,   Pages 141-286 doi: 10.1631/FITEE.1900645

Abstract: In this paper, we focus on the ing of tags in domain-specific Q&A sites.We study tag sequences of millions of questions in four Q&A sites, i.e., CodeProject, SegmentFault, BiostarsOur results show that users of these Q&A sites can develop implicit consensus about in which order theyOur study opens the path to improve existing tag recommendation and Q&A site navigation by leveraging

Keywords： Question and answering (Q&     A) sites     Tagging     Natural order     Skip gram    

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A modified harmony search algorithm and its applications in weighted fuzzy production rule extraction Research Article

Shaoqiang YE, Kaiqing ZHOU, Azlan Mohd ZAIN, Fangling WANG, Yusliza YUSOFF

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 11,   Pages 1574-1590 doi: 10.1631/FITEE.2200334

Abstract: further verification, HS-CS is used to optimize the back propagation neural network (BPNN) to extract weightedSimulation results show that the BPNN optimized by HS-CS can obtain higher classification accuracy of weighted

Keywords： Harmony search algorithm     Cuckoo search algorithm     Global convergence     Function optimization     Weighted    

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TPE-H2MWD: an exact thumbnail preserving encryption scheme with hidden Markov model and weighted diffusion Research Article

Xiuli CHAI, Xiuhui CHEN, Yakun MA, Fang ZUO, Zhihua GAN, Yushu ZHANG,chaixiuli@henu.edu.cn,2923105987@qq.com,1060734169@qq.com,zuofang@henu.edu.cn,gzh@henu.edu.cn,yushu@nuaa.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 8,   Pages 1169-1180 doi: 10.1631/FITEE.2200498

Abstract: rank-then-encipher method, some researchers have designed a three-pixel exact thumbnail preserving encryption (TPE2)

Keywords： Hidden Markov model     Weighted diffusion     Balance between usability and privacy     Image encryption    

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An approach for evaluating fire resistance of high strength Q460 steel columns

Wei-Yong WANG, Guo-Qiang LI, Bao-lin YU

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 26-35 doi: 10.1007/s11709-014-0239-9

Abstract: To develop a methodology for evaluating fire resistance of high strength Q460 steel columns, the loadbearing capacity of high strength Q460 steel columns is investigated.evaluating load bearing capacity of mild steel columns at room temperature is extended to high strength Q460steel columns with due consideration to high temperature properties of high strength Q460 steel.The critical temperature of high strength Q460 steel column is presented and compared with mild steel

Keywords： high strength Q460 steel     load bearing capacity     temperature    

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radiation fraction induced by interaction burning of tri-symmetric propane fires in open space based on weighted

Jie JI, Junrui DUAN, Huaxian WAN

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1017-1026 doi: 10.1007/s11708-020-0716-x

Abstract: The interaction of multiple fires may lead to a higher flame height and more intense radiation flux than a single fire, which increases the possibility of flame spread and risks to the surroundings. Experiments were conducted using three burners with identical heat release rates (HRRs) and propane as the fuel at various spacings. The results show that flames change from non-merging to merging as the spacing decreases, which result in a complex evolution of flame height and merging point height. To facilitate the analysis, a novel merging criterion based on the dimensionless spacing / was proposed. For non-merging flames ( / >0.368), the flame height is almost identical to a single fire; for merging flames ( / ≤0.368), based on the relationship between thermal buoyancy and thrust (the pressure difference between the inside and outside of the flame), a quantitative analysis of the flame height, merging point height, and air entrainment was formed, and the calculated merging flame heights show a good agreement with the measured experimental values. Moreover, the multi-point source model was further improved, and radiation fraction of propane was calculated. The data obtained in this study would play an important role in calculating the external radiation of propane fire.

Keywords： flame interaction     air entrainment     flame height     multi-point source model     thermal radiation    

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Title Author Date Type Operation

Research and Implementation of IP - VPN

Li Xiuzhong

Journal Article

Minimization of total energy consumption in an m-machine flow shop with an exponential time-dependent learning effect

Lingxuan LIU, Zhongshun SHI, Leyuan SHI

Journal Article

Study and Performance Analysis of TT - FPS Based on CAN Bus

Lu Weijie,Liu Luyuan,Wang Yixin

Journal Article

Robust mismatched filtering algorithm for passive bistatic radar using worst-case performance optimization

Gang Chen, Jun Wang,chengang_xidian@163.com,wangjun@xidian.edu.cn

Journal Article

evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2

Xiaoyan Chen,Wenxia Xiao,Xinchun Li,Jianxun He,Xiaochun Huang,Yuyu Tan

Journal Article

A rare case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation

Xiaofeng Shi, Rong Ba, Haiyan You, Qian Jiang, Jiansong Huang, Jianhua Mao, Lanxiu Han, Shuo Zhang, Qin Zhuang, Xianqiu Yu, Lixia Wang, Yun Wang, Dongya Li, Wei Zhu, Yong Zhang, Yan Zhu, Xiaodong Xi

Journal Article

Sb2Te3 topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched

Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn

Journal Article

Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber

Junshan He, Guohua Zeng, Shaoxian Liu, Haiming Lu, Ruixian Xie, Jingjing Qi, Lili Tao, Bo Zhou,taoll@gdut.edu.cn,zhoubo@scut.edu.cn

Journal Article

Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Journal Article

Minimax Q-learning design for H∞ control of linear discrete-time systems

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Journal Article

Learning natural ordering of tags in domain-specific Q&A sites

Junfang Jia, Guoqiang Li,jiajunfang816@163.com,li.g@sjtu.edu.cn

Journal Article

A modified harmony search algorithm and its applications in weighted fuzzy production rule extraction

Shaoqiang YE, Kaiqing ZHOU, Azlan Mohd ZAIN, Fangling WANG, Yusliza YUSOFF

Journal Article

TPE-H2MWD: an exact thumbnail preserving encryption scheme with hidden Markov model and weighted diffusion

Xiuli CHAI, Xiuhui CHEN, Yakun MA, Fang ZUO, Zhihua GAN, Yushu ZHANG,chaixiuli@henu.edu.cn,2923105987@qq.com,1060734169@qq.com,zuofang@henu.edu.cn,gzh@henu.edu.cn,yushu@nuaa.edu.cn

Journal Article

An approach for evaluating fire resistance of high strength Q460 steel columns

Wei-Yong WANG, Guo-Qiang LI, Bao-lin YU

Journal Article

radiation fraction induced by interaction burning of tri-symmetric propane fires in open space based on weighted

Jie JI, Junrui DUAN, Huaxian WAN

Journal Article