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  1. 11261

    Discrete Dynamic Modeling Analysis of Rural Revitalization and Ecotourism Sustainable Prediction Based on Big Data by Yao Tang

    Published 2022-01-01
    “…In view of this situation, this paper uses the mathematical algorithm of BP neural network to simulate the structure of brain neural network to deal with this kind of nonlinear relationship problem. …”
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  2. 11262

    Analysis and Research of Deicing Special Vehicle Shovel Ice Device Conveyor by Zhang Zhifu, Huang Qibai, Chen Dingfang, Wang Xiaojuan

    Published 2015-01-01
    “…In view of the phenomenon that icy roads to road traffic accidents have severely affected,a mechanical deicing special vehicle for road deicing,which carried on the reasonable design and layout is devised.The belt drive system of mechanical deicing device is major researched,infinitesimal dynamics equation of conveyor belt is established,and the belt drive system is analyzed in theory.Through theory design and engineering design algorithm,the belt transmission torque and power is analyzed,the foundation for the further study of belt transmission is laid.By using the ANSYS and ADAMS,the stress simulation and dynamics simulation of belt drive systems are carried out,and the correctness of the preliminary design of pulley drive system is validated,the technical support of the optimum design of deicing special vehicle is provided.The study of deicing special vehicle deicing efficiency has played a key role,which with better economic benefits and promotional value.…”
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  3. 11263

    Adaptive Super-Twisting Sliding Mode Control for Mobile Robots Based on High-Gain Observers by Haitao Liu, Jianhao Nie, Jian Sun, Xuehong Tian

    Published 2020-01-01
    “…In this paper, a robust adaptive output feedback control strategy based on a sliding mode super-twisting algorithm is designed for the trajectory tracking control of a wheeled mobile robot. …”
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  4. 11264

    Detection of Fuzzy Association Rules by Fuzzy Transforms by Ferdinando Di Martino, Salvatore Sessa

    Published 2012-01-01
    “…In the extraction of the fuzzy association rules we use the AprioriGen algorithm and a confidence index calculated via the inverse fuzzy transform. …”
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  5. 11265

    Functional composition in software-defined network based on atomic capacity by UANTong D, ANJu-long L, HENGGuo-zhen C, UYu-xiang H

    Published 2015-05-01
    “…Software-defined network (SDN) enables frequent network functional innovation and evolution,making the control function modularity one of the most hot research fields on SDN.Aiming at network-wide functional composition based on unified module definition and function division,firstly,atomic capacity (AC) is introduced as atomic elements of module function division and an AC-based resource description method is proposed; secondly,functional composition module based on two-level mapping is put forward and a heuristic algorithm to calculate the composition is proposed; fi-nally,an AC-orchestrating layer as extended structure of SDN application layer is devised and then a NetFPGA-10G pro-totype implementation is given.Experimental results show that the method can combine functional instances more effec-tively with better resource utilization.…”
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  6. 11266

    Analysis and Improvement of Key Distribution Scheme for Secure Group Communication by Jia Ning Luo, Ming Hour Yang

    Published 2016-01-01
    “…Zhou and Huang proposed a key-updated scheme based on ciphertext-policy attribute encryption algorithm to improve the security of key-update mechanism, but their scheme is vulnerable: a malicious group member may send forged key-update messages to control the group. …”
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  7. 11267

    DYNAMIC ANALYSIS AND OPTIMIZATION OF IMPACT MECHANISM FOR IMPACTING AND BREAKING ROCK ROADEADER by LI XiaoHuo, QIAN YaSen, JIAO Li, LI Yan, SHI ShangWei, WENG ZhengYang

    Published 2017-01-01
    “…In order to improve the impact mechanism of the impacting and breaking rock roadheader dynamic characteristics under the cycle impact load,the first six natural frequency and mode shape as well as the displacement-frequency curves were obtained by using stress wave synthesis theory and finite element method in the paper,the modal and harmonic response of the mechanism were analyzed,the main deformation portion and main vibration direction and three axial weakest points of the mechanism were confirmed,structure size optimization of the rocker arm were adopted with multiple objective genetic algorithm,The maximum displacement response of the mechanism was reduced,and the dynamic characteristics of the mechanism were improved,which provides a method and basis for researching and improving the dynamic performance of the mechanism.…”
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  8. 11268

    Compact software/hardware co-design and implementation method of Aigis-sig digital signature scheme by Zhen ZHOU, Debiao HE, Min LUO, Li LI

    Published 2021-04-01
    “…Digital signature scheme Aigis-sig, constructed on ideal lattice, takes the advantages of high efficiency, short signature length and resistant to quantum attack, etc.An optimized modular multiplication arithmetic component was constructed and a compact hardware architecture for polynomial operation over a ring based on number theory transformation (NTT) algorithm for Aigis-sig was designed.Besides, based on this architecture, software/hardware co-design and implementation for Aigis-sig scheme on FPGA platform in cryptography was proposed.Experimental results show that the speed of signature phase and verification phase are increased by about 26% and 17% respectively, compared with the pure software implementation on Xilinx Zynq-7000 SoC platform when CPU clock frequency and hardware clock frequency are set as 666.66MHz and 150 MHz respectively.…”
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  9. 11269

    Design of the End-effector of Waste Lithium-ion Battery Handling Robots by Zhang Hongsheng, Deng Ze

    Published 2024-03-01
    “…The rod length and position parameters of six-bar mechanism are optimized by genetic algorithm-BFGS (GA-BFGS) quasi-Newton method and particle swarm optimization-BFGS (PSO-BFGS) quasi-Newton method, and the dynamics model of the six-bar mechanism is established. …”
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  10. 11270

    Channel estimation for MIMO SC-FDE systems via time-domain based approaches by LI Dan-ping, LIU Yi, ZHANG Hai-lin

    Published 2011-01-01
    “…Circularly orthogonal sequences were designed for the time-domain channel estimation in MIMO SC-FDE systems.Firstly,Chu sequences were chosen as the base sequences,which were added by cyclic prefix and cyclic postfix to construct circularly orthogonal training sequences.The channel impulse response can be estimated by calculating the cross-correlation between the received signal and the corresponding local sequence.Further,a new training sequence structure was presented,in which the original "long" training sequences were replaced by successive and identical "short" sequences.The corresponding estimation algorithm achieves the same performance as "long" sequences based method.Simulation results show that the proposed algorithms can offer good BER performance even at low SNR,due to the successful interference suppression between the antennas and the decrease in the noise variance.…”
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  11. 11271

    Research on edge offloading delay optimization of cellular networks based on optimal transport theory by Xiangyu LYU, Yong XIAO, Yi ZHONG, Qiang LI, Xiaohu GE

    Published 2023-12-01
    “…With the development of the internet of things, a large number of user device (UD) were connected to cellular network.Since the changes in the spatial distribution of UD and application requirements, it is necessary to dynamically adjust the UD’ offloading decision.Comprehensively considering various parameter information in the networks such as the spatial distribution of UD, application requirements, and the processing capability of the edge servers on the base station (BS) side, the offloading decision of UD were optimized from the perspective of distribution.Based on the optimal transport theory, a delay optimization algorithm was proposed to reduce the average delay of the UD’ computing tasks offloading process by reasonably planning the offloading BS of the UD in the networks.The simulation results show that the average delay can be reduced by 81.06% using the proposed offloading mechanism based on delay optimization, and the traffic handled by each BS is balanced.…”
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  12. 11272

    FORMATION OF THE CONCEPT IN THE SPHERE OF ECOLOGICAL-ORIENTED INNOVATIVE DEVELOPMENT OF REGIONS OF THE RUSSIAN FEDERATION by M. O. Shevchenko

    Published 2019-12-01
    “…It has been offered to introduce into circulation a concept from area of the eco-oriented innovative development (further - EOID) of a look “a system -a model - a strategy - an algorithm”. Components of the offered concept have been presented. …”
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  13. 11273

    Power control strategy with joint of multi-packet reception and fuzzy logic control by Jiang-hong HAN, Song-hua HU, Bin LIU, Zhen CHEN, Lei LIU

    Published 2015-02-01
    “…In order to meet the needs of energy saving in wireless networks,a power control strategy with joint of multi-packet reception and fuzzy logic was proposed.Firstly,based on the power control with successive interference cancellation (SIC),transmission power was divided into several decodable power levels.Secondly,fuzzy logic control algorithm was adopted to select the optimal transmission power for SIC.In addition,three parameters were designed as fuzzy logic control inputs for power selection,which were the distance between transmitters and receivers,the number of neighboring nodes and the residual energy of transmitters.Simulation results show that power control strategy with joint of multi-packet reception and fuzzy logic control not only betters average network throughput than other power control strategy for SIC,but also saves more energy so that the network lifecycle would be significantly extended.…”
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  14. 11274

    Information tracing model based on PageRank by Qian LI, Jia-wei LAI, Yun-peng XIAO, Bin WU

    Published 2017-08-01
    “…In social network,original publisher and important nodes in the diffusion process can be traced by analyzing the spreading network of a hot topic.The participated users and spreading network structure of a hot topic build an information tracing model,which mines the source and important diffusion nodes.Firstly,it analyzed the development trend of a hot topic and extracts the users involved.Secondly,it established a user network according to the following relationship of the users involved.Thirdly,the contribution rate of users on the development of the hot topic was initialized,and the PageRank algorithm was used to construct the information tracing model.Finally,the Top k users were selected as the information publisher and important users of the hot topic according to the contribution rate.Experimental results showed that our model can effectively discover the hot topic of the publisher and important users.…”
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  15. 11275

    Auction based bandwidth allocation mechanism for P2P content distribution networks by Yun-he ZHANG, Yan-qin ZHU, Qi-jin JI

    Published 2013-04-01
    “…Unreasonable allocation of originally scarce bandwidth was a severe problem in the P2P content distribution networks.To solve the problem and suppress the node's selfishness,an auction-based bandwidth allocation mechanism for P2P networks was proposed.Through the effective bandwidth payment scheme,the selfish nodes had no incentives to lie and provided the real bandwidth requirements.Also the “tragedy of the commons” could be avoided by the nodes' healthy bandwidth competition.To adapt to the distributed nature of the P2P networks,the algorithm was implemented in parallel at resource providing nodes and request nodes.Simulation results show that the scheme not only suppresses riding nodes efficiently in the system,but also shortens the average completion time for content distribution and decreases the ratio of data uploaded by the source server.…”
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  16. 11276

    Modeling and Analysis of New Multilevel Inverter for Solar Photovoltaic Power Plant by Xiaoqiang Guo, Ran He, Mehdi Narimani

    Published 2016-01-01
    “…However, the conventional multilevel inverters require more semiconductors, which complicate the circuit structure and control algorithm. In this paper, a novel five-level inverter is introduced for the high voltage PV power plant applications. …”
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  17. 11277

    Feature Extraction of Gear Fault Signal Based on Sobel Operator and WHT by Jian-Hua Cai, Wei-Wen Hu

    Published 2013-01-01
    “…The improved Wigner-Hough transform can effectively suppress the influence of noise and has a good real-time performance because its algorithm is fast. The proposed method provides an effective method to determine the state of gear accurately.…”
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  18. 11278

    A Scatter Search Approach for Multiobjective Selective Disassembly Sequence Problem by Xiwang Guo, Shixin Liu

    Published 2014-01-01
    “…The validity of ISS is verified by comparing the optimization effects of ISS and nondominated sorting genetic algorithm (NSGA-II).…”
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  19. 11279

    To the Definition the Deflections of Flexible Non-centrally Compressed Reinforced Concrete Struts Strengthened in the Transverse Direction with Composite Materials by D. R. Mailyan, S. V. Georgiev

    Published 2023-04-01
    “…The results of the theoretical calculation of deflections are presented and, based on the comparison of experimental and theoretical values of deflections, an algorithm for calculating the second group of limit states was developed.…”
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  20. 11280

    DOA Estimation Based on Sparse Signal Recovery Utilizing Double-Threshold Sigmoid Penalty by Hanbing Wang, Hui Li, Bin Li

    Published 2015-01-01
    “…This paper proposes a new algorithm based on sparse signal recovery for estimating the direction of arrival (DOA) of multiple sources. …”
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