Influence of Polygon Wheel on Dynamic Performance of Meter-gauge Locomotive by Jingtao HU, Jiuhe YANG, Junjun DING, Zhaoxi LI, Fu LI

“…At last, the change trend of wheel-rail vertical forces was studied under the joint action of polygon wheel and track excitation. The results showed that due to the low running speed of the meter-gauge locomotive, the polygon wheel will form low frequency vibration which will increase the vibration response of the car body; the polygon wheel will greatly increase the wheel-rail vertical forces, but it has little effect on the derailment coefficient; the wave depth limit is inversely proportional to the running speed of the locomotive and the harmonic order; the track excitation will not cover the trend caused by polygon wheel, but it will greatly increase the wheel-rail vertical forces. …”
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Effect of Warning System on Interactive Driving Behavior at Unsignalized Intersection under Fog Conditions: A Study Based on Multiuser Driving Simulation by Yunfan Zhang, Xuedong Yan, Jiawei Wu, Ke Duan

“…Compared to conditions without ICWS, the ICWS could help drivers make collision avoidance actions earlier and change the speed more smoothly. …”
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Rail surface identification and adhesion control based on dynamic adhesion characteristics by Wen Liu, Hongfeng Qi, Jingchun Huang, Yiyuan Chen, Sheng He, Haoxiang Feng

“…However, as the speed of high-speed trains continues to increase, the use of wheel-rail adhesion is also being challenged. …”
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Research and development of material feeder of drum type shredder by V. I. Zenikov

“…Transportation is carried out owing to action of centrifugal forces of the crushing drum and the air stream created by it. …”
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Quantitative Evaluation for Reinforcement Effect of Auxiliary Steel Beams Based on Running Safety and Dynamic Response by Gong Kai, Liu Linya, Xiang Jun, Yang Haiming, Yu Cuiying

“…Compared with the previous speed (115.56 km/h), the speed is 132.73 km/h after the auxiliary steel beam reinforcement; at the same time, the allowable limit speed increases from 92.49 km/h to 106.18 km/h. …”
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Rapid arc extinguishing of a double-ended electromagnetic air-blast segmented arc-extinguishing device by Xiong LI, Tingfang YANG, Huikang ZHOU, Wenchao YANG, Minghao FENG, Chao ZHUO

“…To address the issue of decreased reliability in power transmission caused by the incapability of existing parallel protection gaps to actively extinguish arcs，a method utilizing the power-flow current flowing through coil to generate a magnetic field，and employing electromagnetic force to drive a piston to compress air and jet high-speed airflow for arc extinction is proposed. …”
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Investigation on Dynamic Factors of Railway Steel-Plate–Concrete Composite Beam Bridges With Small and Medium Spans by Jin Di, Yi Su, Yuxuan Han, Jinming Luo, Fengjiang Qin, Rui Yan

“…Resonance is produced when the train travel speed and bridge frequency meet a certain relationship, which in turn significantly increases the DF. …”
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Federated deep reinforcement learning-based urban traffic signal optimal control by Mi Li, Xiaolong Pan, Chuhui Liu, Zirui Li

“…The proposed method improves the model generalization ability of different local models during global cross-region distributed joint training under the premise of ensuring information security and data privacy, solves the problem of non-independent and homogeneous distribution of environmental data faced by different agents in real intersection scenarios, and significantly accelerates the convergence speed of the model training phase. By reasonably designing the state, action and reward functions and determining the optimal values of several key parameters in the federated collaboration mechanism, the RL model could ensure high learning efficiency and fast convergence in the face of the gradual increase of road network size and the exponential increase of state and action space with the number of intersections. …”
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Modeling of limitations on the use of hydraulic motor-wheels in transmissions of mobile machines by Avrunin Grygoriy, Podrigalo Mikhail, Podrigalo Nadia, Fidrovska Natalia, Moroz Irina, Yatsunskyi Petro

“…Positive results were obtained in terms of increasing the speed of mobile machines when using hydraulic motor-wheels of radial piston multicycle action in transmissions instead of gerotor hydraulic motors, axial-piston hydraulic motors with planetary gearboxes, hydraulic transmissions with cardan shafts and mechanical transmissions. …”
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A Hybrid Security Framework for Train-to-Ground (T2G) Communication Using DOA-Optimized BPNN Detection, Bayesian Risk Scoring, and RL-Based Response by Chaoyuan Sun, Weijiao Zhang, Peng Sun, Hui Wang, Chunhui Yang

“…With the widespread adoption of wireless communication technologies in modern high-speed rail systems, the Train-to-Ground (T2G) communication system for Electric/Diesel Multiple Units (EMU/DMU) has become essential for train operation monitoring and fault diagnosis. …”
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Assessment of mass characteristics of a wheeled chassis when designing a preventive suspension system by Malinovsky M.P., Tarichko V.I., Chikina A.K.

“…To achieve a preventive nature of the action by predicting longitudinal and lateral vibrations, brake pedal travel and fuel supply sensors, as well as a steering shaft speed sensor, are used. …”
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DC Bus Overcurrent Protection Scheme in Metro DC Traction Power Supply System Based on Boolean Logic Calculation by LIU Yuxing, ZHENG Chunchun, LAI Peixin, XIE Jinlian, XIE Yuehai, LIU Yajie

“…It meets the requirements for protection reliability and speed, offering a DC bus protection solution that integrates low cost, high reliability, and simple implementation. …”
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Formation of Orthogonal Components of Input Currents in Microprocessor Protections of Electrical Equipment by F. A. Romaniuk, Yu. V. Rumiantsev, V. Yu. Rumiantsev, I. V. Novash

“…With a strong saturation of the magnetic core of current transformers, the speed of obtaining reliable values of these components is increased by 1.5–2 times.…”
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The Analysis of Process of Crushing in the Vibrocavitational Homogenizer by E. V. Flisyuk, S. S. Belokurov, I. A. Narkevich, O. M. Flisyuk, D. Yu. Ivkin

“…In earlier works, using the example of the extraction of dioscin from fenugreek seeds, it was shown that an increase in the rotor speed increases the yield of biologically active substances. …”
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Study and evaluation method of concrete erosion under a wind–sand flow load by Wei Liu, Yaoyu Zhu, Ying Jia, Jinyan Si, Li Zhu, Shucheng Li, Xueru Yang, Dangxian Xu

“…As the wind speed increases from 18 m/s to 30 m/s, the wind–sand flow pressure on the surface of the concrete specimen increases by 243.43 %, and the strength loss rate increases from 0.03 % to 9.34 %. …”
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Modeling and Nonlinear Response of the Cam-Follower Oblique-Impact System by Yong-Feng Yang, Yu Lu, Ting-Dong Jiang, Na Lu

“…The simulation results show that the cam and follower kept permanent contact when the cam rotational speed was low. With the increase of the cam rotational speed, the cam and follower would be separated and then impact under the gravity action. …”
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Vibration Reduction Effect of Steel Spring Floating Slabs under Water Immersion Conditions by YUAN Dehao, ZHANG Hongliang, YANG Lin, ZHOU Yu, NIU Xiaoli

“…The isolator stiffness and train speed affecting the vibration reduction performance of the water-immersed floating slab under train load action is analyzed. …”
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Non-Uniform Thermal Transfer of Molten Steel and Its Effect on Inclusion Particles Removal Behavior in Continuous Casting Tundish by Zhixiao Zhang, Tianpeng Qu, Deyong Wang, Xianglong Li, Lei Fan, Xingzhi Zhou

“…While the inlet temperature is lower, the horizontal stream cannot be maintained, resulting in a decrease in the removal rate of inclusions. Increasing the casting speed will increase the velocity of the molten steel in the tundish, make it easier to shorten the temperature difference between the inlet and outlet, and reduce the removal rate of inclusions. …”
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Prediction method of surface deformation around soft base dump based on viscoelastic theory by Dong WANG, Li YIN, Lanzhu CAO, Yiming FU, Liguo ZHANG, Chunhui ZHANG, Chunjian DING

“…A series of quantitative data is obtained through calculations and predictions of surface deformation on layered viscoelastic substrates under pile load actions in the discharging yard. It is observed that the settlement of piers around the discharging yard and the variation in settlement between neighboring piers gradually increase with time evolution, eventually reaching a stable state. …”
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Professional-applied physical training of future specialists in the oil and gas industry with the predominant use of the game method by Roman Boichuk, Oleh Vintonyak, Volodymyr Kryzhanivskyi, Roman Mikhailenko, Andriy Shankovskyi, Ihor Belyavskyi, Andriy Hrabchuk

“…Physical fitness was assessed using motor tests that evaluated key motor qualities, including strength, endurance, speed, flexibility, and coordination abilities. …”
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