Analysis of the Influence of Tension on the Fluctuation of iMCVT by Feng Nenglian, Huang Hongyin, Wang Xiaofeng, Chen Longke, Zhang Xingyu

“…The effect of tension force on the iMCVT transmission fluctuation is studied by changing the tensioning force of the tensioning device on the metal tooth chain. The simulation results show that when the transmission ratio is 1,increasing the tension force can reduce the fluctuation of the rotational speed,when the tension force reaches a certain value（ about 600 N）,the fluctuation of the rotational speed tends to be stable. …”
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Analysis of Complex Dynamics in Different Bargaining Systems by Xiaogang Ma, Chunyu Bao, Lin Su

“…We explore the influence of bargaining power and adjustment speed on the stability of the dynamic system and find that both of the factors need to be small to maintain the stability of the supply chain. …”
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Parameter Identification and Control Method of a Hypersonic Wind Tunnel Attack Angle Mechanism by Guoliang Zheng, Dewei Zhang, Guangfei You, Leile Zhang, Yiyong Wu, Hongtao Yang

“…In view of the characteristics of the nonlinear transmission of the pitch and yaw mechanism and the need for accurate control of the mechanism speed in the wind tunnel test， on the basis of parameter identification， the virtual axis， electronic cam and electronic gear technology are used to achieve the speed of pitch and yaw degrees of freedom precise control， speed control accuracy is better than the accuracy index of 0.5 （°）/s.…”
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Research on key technologies of safety monitoring data sharing for railway engineering construction based on blockchain by Yuhong LIU, Liang YANG, Chunhui PIAO, Zhiguo ZHANG

“…In order to solve the problems that the monitoring data was easy to be tampered with in the process of railway engineering construction safety monitoring, and the authenticity of the data might be questioned during the accountability of accidents, a blockchain-based railway engineering construction safety monitoring data sharing model was proposed.The characteristics of automatic execution of smart contracts ensured the transparency of the process of monitoring data on the chain.In the PBFT algorithm, there was a problem that the Byzantine nodes and the normal nodes were selected as the master node with the same probability, a reputation-based practical Byzantine fault tolerance algorithm was proposed.Streaming data on the chain might cause network congestion, which simplified the consensus protocol and reduced the time complexity from O(n²) to O(n).A comparative experiment was conducted using Hyperledger Caliper to prove that the delay of the improved algorithm is lower than PBFT algorithm, and the throughput is higher than PBFT algorithm.A quantitative analysis of the possibility of attack and the probability of successful attack was carried out, and it was determined that the smart contract provides tamper-proof modification for the monitoring data on the chain.Comparative analysis proves that the proposed blockchain-based railway engineering construction safety monitoring data sharing model is good than other models in terms of consensus efficiency, TPS and block generation speed.…”
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Complexity Dynamic Character Analysis of Retailers Based on the Share of Stochastic Demand and Service by Junhai Ma, Weiya Di, Hao Ren

“…We explore how the price adjustment speed affects the stability of the supply chain system with respect to service level and stochastic demand. …”
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Research on the Operational Parameters and Performance of Key Components of an Industrial Hemp Harvester and Drier by Chao Feng, Changxi Liu, Bosheng Wang, Hang Shi, Hao Sun, Yufei Li, Jun Hu

“…Next, dynamic simulation analysis of the key components of the domestic 4GM-2.2 industrial hemp harvester for fiber is conducted using ADAMS and Workbench. The conveyor speed values and corresponding chain drive combinations under different conveyor speed ratios are obtained. …”
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General Numerical Method for Calculating the Transmission Ratio of Epicyclic Gear Train by Wang Yubo

“…A basic component equations of the planets is established,based on principles and known conditions,an implicit equation of the drive chain including one unknown variable is built. By using two secant method,the numerical solution of the equation is solved,at the end of the process,the output speed is given,meanwhile,the speeds of all components are given,the result is compared with the theoretical calculation to verify.…”
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Analysis of Pose and Workspace Characteristic of 5-DOF Parallel Robot by Zhiyong Yang, Hongjun Zhou, Qiao Fang, Zihao Zhang, Jun Wang, Chen Miao

“…Aiming at the problems of low rigidity， large accumulated error， and limited high-speed and heavy load in the application of serial robots in the constant force grinding processing industry， a five-degree-of-freedom parallel robot composed of 4-UPS/PPS composed of four sets of the same UPS drive branch chain and one PPS restraint branch chain is proposed， the robot movement in two-dimensional plane and rotation in three-dimensional space are realized. …”
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Intelligent Digital Currency and Dynamic Coding Service System Based on Internet of Things Technology by Shanshen Li, Xin Jing

“…The node operation protocol of public chain and alliance chain maintains the operation of the Internet of Things system. …”
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On the Sources and Sizes of Uncertainty in Predicting the Arrival Time of Interplanetary Coronal Mass Ejections Using Global MHD Models by Pete Riley, Michal Ben‐Nun

“…We find that each component in the chain contributes between ±2.5 and ±7 h of uncertainty to the estimate of the CME's ToA. …”
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Functional Diagram of High-Precision Drive with Variables by V. A. Gane, N. T. Ahmed

“…The paper shows that a standard drive has a local speed feedback in order to ensure robustness at a conversion rate. …”
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CONSTRUCTION OF TORSIONAL VIBRATION MECHANICS MODEL OF SCRAPER CONVEYOR AND ANALYSIS OF WORKING CONDITIONS THROUGH BENDING SECTION by MAO Jun, ZHANG YunSheng, XIE ChunXue, LIU ZhiXiang, XIE Miao

“…The torsional vibration intensity is more pronounced under no-load conditions than when the front and rear are loaded; for the entire scraper, when it passes through the bending section, the closer the scraper chain system（swing, vibration, Speed, etc.） the more significant the feature changes.…”
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Design of hydraulic transport systems for mining and processing plants by L. V. Volgina, S. A. Sergeev, A. A. Romanova

“…The necessity of using the speed reserve coefficient to achieve an effective mode of transportation was formulated. …”
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A Trusted Federated Learning Method Based on Consortium Blockchain by Xiaojun Yin, Xijun Wu, Xinming Zhang

“…This method leverages computational power registration to group participants with similar resources into private chains and employs cross-chain communication with a central management chain to ensure efficient and secure model aggregation. …”
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Analysis on the adjustment of transportation structure and the logistics transformation of railway freight by Chaohe Rong, Xingchan Li, Gaiping Zhang, Xuecheng Wang

“…The study posits that the railway sector must enhance cooperation with other market entities, aligning with the lead enterprises in the logistics chain that are characterized by speed, high value and strong coordination capabilities, in order to better serve the transportation market. …”
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Study of the Growth Process of Original Crack in the Surrounding Rock of Tunnel under the Adjacent Explosive Load by Kang Liu, Dongming Guo, Xinchao Kang, Jun Zhang

“…During the period of 200 μs to 250 μs, the crack growth rate oscillates at the peak, and its size is approximately equal to the moving speed of the arc wave. Based on the experimental results and microscopic damage mechanics, the high stress concentration at the original crack tip under the stress wave first causes damage localization and the weakest chain is formed by the penetration of the damage localization zones by microcracks by special distribution law. …”
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An Authentication Approach in a Distributed System Through Synergetic Computing by Jia-Jen Wang, Yaw-Chung Chen, Meng-Chang Chen

“…Events with different risk levels are processed in parallel through different flows by using Chief chain (CC) and Telstar chain (TC) methods. Low-risk events are computed in edge nodes to form TC, which can be periodically integrated into CC that contains data of high-risk events. …”
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Equity decentralized consensus algorithm based on incentive compatibility by Youliang TIAN, Yansen YUAN, Hongfeng GAO, Yang YANG, Jinbo XIONG

“…The PoW consensus algorithm has been proved to be incentive incompatible, existing computing centralization under high reward differences and slow convergence of forks in extreme cases.Based on this, an incentive-compatiblebased consensus algorithm SSPoW was proposed.By introducing local solutions to calculate the computing power aggregated on the block chain, the explicit quantification of computing power was used to speed up the convergence of the fork, thus satisfying the consistency of the blockchain.Incentive compatibility was achieved by improving the reward scheme, which reduced the problem of computing centralization caused by high reward differences.Simulation results prove that the proposed algorithm could effectively reduce the reward differences and is more efficient than the traditional PoW consensus algorithm, which has positive implications for improving system security and consensus efficiency.…”
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Finite-State-Space Truncations for Infinite Quasi-Birth-Death Processes by Hendrik Baumann

“…For dealing numerically with the infinite-state-space Markov chains, a truncation of the state space is inevitable, that is, an approximation by a finite-state-space Markov chain has to be performed. …”
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Dynamics Analysis and Design of a type of Artillery Azimuth Angle Measuring Device by Wang Ju, Wang Dongrong, Tong Qingyu, Yao Zhihui

“…The working principle and composition of a certain type of artillery servo angle test system are introduced,the test system of gear transmission chain in the azimuth angle measuring device and the calculation of angle measurement accuracy are analyzed and explained. …”
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