LOW-FREQUENCY DYNAMIC CHARACTERISTICS OF A MECHANICAL VIBRATION SYSTEM UNDER BILATERAL NONLINEAR RESTRAINTS (MT) by WEN ZhiHua, ZHU XiFeng, WANG JianFeng

“…Through the fourth-order Runge-Kutta numerical algorithm, the dynamic characteristics of the p/1 periodic motion of the system under low frequency excitation, the law of mutual transition and the corresponding law of the coexistence zone of gap and period are analyzed. …”
Get full text

Study on Vibration Characteristic of Trilobe Raceway Cylindrical Roller Bearing with Elastic Support by Sun Xue, Deng Sier, Zhang Yuanjun, Chen Guoding

“…By using the predict-correct integer algorithm with variable step,the dynamics equation is solved,and the influence of structural parameters of elastic support and working conditions on the vibration characteristics of the bearing is investigated. …”
Get full text

Adaptive Output Tracking of Driven Oscillators by Lili Diao, Martin Guay

“…An adaptive learning algorithm is exploited that guarantees the stability of the closed-loop system and convergence of the output tracking error to an adjustable neighborhood of the origin. …”
Get full text

Cognitive Inference Device for Activity Supervision in the Elderly by Nilamadhab Mishra, Chung-Chih Lin, Hsien-Tsung Chang

“…To frame the CI-device, we propose a device design framework along with an inference algorithm and implement the designs through an artificial neural model with different configurations, mapping the CI-device’s functions to minimise the device’s prediction error. …”
Get full text

Efficient Simulation Budget Allocation for Ranking the Top m Designs by Hui Xiao, Loo Hay Lee

“…To implement the simulation budget allocation rule, we suggest a heuristic sequential algorithm. Numerical experiments are conducted to compare the effectiveness of the proposed simulation budget allocation rule. …”
Get full text

A Coupled Discrete-Finite Element Method for Shear Strength Analysis of Geogrid-Reinforced Railway Ballast by Danyang Ji, Zheng Ma, Junjie Zhou, Yajun Li, Shuai Shao

“…Continuum geogrid is modeled by a two-node beam element with six degrees of freedom. A contact algorithm based on the static equilibrium is proposed at the geogrid-ballast contact surface. …”
Get full text

A Novel Pigeon-Inspired Optimized RBF Model for Parallel Battery Branch Forecasting by Yanhui Zhang, Shili Lin, Haiping Ma, Yuanjun Guo, Wei Feng

“…This paper proposes a radial basis function neural network model based on the pigeon-inspired optimization method and successfully applies the algorithm to predict the parallel branch current of the battery pack. …”
Get full text

The Characteristics of Metaheuristic Method in Selection of Path Pairs on Multicriteria Ad Hoc Networks by Nyoman Gunantara, I Dewa Nyoman Nurweda Putra

“…This research analyzes the metaheuristic methods, that is, ant colony optimization (ACO), genetic algorithm (GA), and particle swarm optimization (PSO), in the selection of path pairs on multicriteria ad hoc network. …”
Get full text

Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium by Hengrui Xu, Mostafa Abuseada, Y. Sungtaek Ju, R. Mitchell Spearrin, Timothy S. Fisher

“…By solving a two-dimensional heat transfer problem and applying an inverse optimization algorithm, we estimate the quasi-steady state spatial temperature distribution in a fibrous porous carbon substrate. …”
Get full text

Heterogeneous resource cooperative game in space-ground computing power network by Yutong ZHANG, Yuming PENG, Boya DI, Lingyang SONG

“…To deal with the resource competition among satellites in the multi-satellite space-ground computing network, a space-ground heterogeneous resource cooperative game mechanism was designed in terms of the computing and spectrum domains.Each satellite published a computing task which was independent of other tasks and relied on UE to generate raw data.By competing the resources of user terminals and UE, the task offloading and processing was achieved.To provide real-time data services, a distributed scheme was proposed based on multi-agent reinforcement learning to coordinate the computing and spectrum resource competition among satellites, thereby minimizing the system latency.Simulation results indicated that, compared with the existing schemes, the proposed algorithm achieves a lower system latency by fully utilizing the computing and spectrum resources and coordinating the resource competition.…”
Get full text

AoI-enabled multi-node cooperative sensing based on integration of sensing, communication, and computing in vehicular networks by Yiqing ZHOU, Haoyue ZHANG, Yanli QI, Qing CAI, Ling LIU, Jiangzhou WANG

“…For the requirements of real-time services in autonomous driving systems, such as high-definition (HD) maps, based on the integration of sensing, communication, and computing, a multi-node cooperative sensing mechanism was proposed with the age of information (AoI) as the real-time indicator.Considering the constraints on communication and computing resources and vehicle energy consumption, the information collection, transmission and processing of sensing nodes were optimally scheduled to minimize the AoI averaged over time.A Lyapunov-based online scheduling algorithm was proposed to transform the long-term stochastic optimization problem into an online optimization problem, which could be solved with low complexity.Compared with the existing mechanism considering integrated communication and computing, the proposed mechanism can improve real-time performance by 9%～50%.…”
Get full text

The Measurement of Chinese Sentence Semantic Complexity by Shuqin Zhu, Jihua Song, Weiming Peng, Dongdong Guo, Jingbo Sun

“…The predication structures are extracted based on the result of sentence-based syntactic analysis, and then the linear expression sequence of a sentence is converted into a semantic hierarchy based on predicate semantic frameworks; the universality of predicate semantic frameworks is obtained by using the spectral clustering algorithm; and the sentence semantic complexity depends on the universality of predicate semantic frameworks at various layers. …”
Get full text

Optimizing a Biobjective Production-Distribution Planning Problem Using a GRASP by Martha-Selene Casas-Ramírez, José-Fernando Camacho-Vallejo, Rosa G. González-Ramírez, José-Antonio Marmolejo-Saucedo, José-Manuel Velarde-Cantú

“…To evaluate the performance of the proposed algorithm, numerical experimentations are conducted over a set of instances used for similar problems. …”
Get full text

Mechanism of eliminating UDP redundancy control packets in OpenFlow network by Hui HU, Ming CHEN, Bo LIU, Bo XU, Chang-you XING, Chao HU

“…Large numbers of redundant control packets produced by connectionless UDP flows may engender serious influence over the performance of the SDN controllers and networks.The endangerment of the redundant control packets for the performance of SDN controllers by testing and modeling was firstly analyzed,and then a basic solution to solve the problem was formed.Therefore,a preinstalling flow-tables ＆amp; filtering redundant packets (PFFR) mechanism was proposed.By preinstalling flow tables,PFFR limited the initial rate of control packets in UDP flows,and through installing flow tables according to paths and utilizing the redundant packets filtering algorithm,PFFR eliminated redundant packets rapidly.A prototype system based on PFFR was implemented and tested.The experimental results prove that the PFFR mechanism can effectively improve the performance of the controller.…”
Get full text

A Modal-Based Kalman Filter Approach and OSP Method for Structural Response Reconstruction by Zhenrui Peng, Kangli Dong, Hong Yin

“…Thirdly, the backward sequential algorithm is given to obtain the optimal sensor locations. …”
Get full text

A Method Combining Fractal Analysis and Single Channel ICA for Vibration Noise Reduction by Quanbo Lu, Mei Li

“…First, phase space reconstruction is performed on the vibration signal to make the proper input for ICA algorithm. The original is then decomposed into several component signals. …”
Get full text

Kineto-static Analysis of Planetary Gear Train based on Vector Bond Graph Method by Wang Zhongshuang, Jing Weike

“…By the corresponding algorithm,the computer aided modeling and dynamic analysis of planetary gear train system with double planetary gear is realized,the validity of the procedure proposed is illustrated.…”
Get full text

Power allocation satisfying user fairness for integrated sensing and communication system based on orthogonal time frequency space modulation by Ke XU, Luping XIANG, Jie HU, Kun YANG

“…By sharing resources for radar sensing and communications, integrated sensing and communication (ISAC) has promising applications in diverse scenarios, such as human-machine interface, vehicle-to-everything (V2X), remote sensing, and environment surveillance.In order to resolve the frequency resource conflict in high-speed V2X networks, based on the modulation orthogonal time frequency (OTFS), the OTFS-ISAC system was proposed, where the base station receives reflected echoes to obtain sensing parameters of vehicle motion and then establish the vehicle’s mobile topology.Additionally, in terms of the multi-vehicle network, the design of OTFS-ISAC with NOMAsatisfying the fairness and the algorithm of power allocation were proposed.Simulations show that compared with the NOMA without radar sensing system, the proposed design improves the system data rate by 25%.…”
Get full text

Performance and Implementation Evaluation of TR PAPR Reduction Methods for DVB-T2 by Mohamad Mroué, Amor Nafkha, Jacques Palicot, Benjamin Gavalda, Nelly Dagorne

“…Finally, we describe the implementation of a PAPR reduction algorithm in the DVB-T2 modulator.…”
Get full text

Three-Dimensional Reconstruction of Mechanical Parts Based on Digital Holography by Yaohui Dai, Haiyu Wu, Gang Zhu, Yan Yang

“…The multiaperture stitching technique in cylindrical coordinates is applied to digital holography technology, and the particle swarm optimization algorithm is used to transform the nonlinear equations into optimization problems to solve the splicing parameters. …”
Get full text