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. …”
Get full text

THE AERODYNAMIC CHRACTERISTICS CALCULATION METHODOLOGY OF TWO-SHELL PARAGLIDERS by V. V. Ovchinnicov, Yu. V. Petrov

“…A two-shell paraglider is a soft wing, the form of which is supported by the high-speed pressure in the stream and it is a complex aeroelastic system. …”
Get full text

A Method of the SVPWM Pulse Over-modulation Based on Carrier Modulation and Its Implementation by LIU Li, TAN Jianzhong

“…In order to expand the operating speed range of wind turbines, reduce losses for the turbine units, and increase power generation, a SVPWM (space vector pulse width modulation) pulse over-modulation method based on carrier modulation is proposed in this paper. …”
Get full text

Non-Contact Fall Detection System Using 4D Imaging Radar for Elderly Safety Based on a CNN Model by Sejong Ahn, Museong Choi, Jongjin Lee, Jinseok Kim, Sungtaek Chung

“…A CNN model classifies postures into standing, sitting, and lying, while changes in the speed and position distinguish falling actions from lying-down actions. …”
Get full text

The effect of relative pitch size on physiological, physical, technical and tactical variables in small-sided games: a literature review and practical guide by Michael C. Rumpf, Michael C. Rumpf, Michael C. Rumpf, Johannes Jäger, Filipe M. Clemente, Filipe M. Clemente, Filipe M. Clemente, Stefan Altmann, Stefan Altmann, Matthias Lochmann

“…Several physical variables showed significant positive associations (total distance, relative total distance, maximum speed, number of sprints, sprinting, high-speed running, jogging, acceleration and deceleration, high-metabolic load distance, work-to-rest ratio) and negative associations (walking distance) with increases in relative pitch size (p < 0.05). …”
Get full text

Effect of Adsorption of Metal Elements Ni and V on the Structure of Humin by Yin YU, Peng XIA, Yi ZHONG, Shitan NING, Ke WANG, Jianping CHENG

“…The dried samples (numbered as HM-Ni and HM-V) and the original humin sample (numbered HM) are analyzed by element analyzer, X-ray photoelectron spectroscopy (XPS) and solid-state nuclear magnetic resonance carbon spectroscopy (13C-NMR).RESULTSThe results show that the elemental composition of humin is mainly C and O. After the action of Ni and V metal solutions, the relative contents of O and S elements in humin decrease, and the relative contents of C and N elements increase. …”
Get full text

A Formal Approach to Road Safety Assessment Using Traffic Conflict Techniques by Oumaima Barhoumi, Mohamed H. Zaki, Sofiene Tahar

“…Furthermore, we observed that shockwave speed could contribute to traffic conflicts by enabling evasive actions such as sudden braking or lane changes as the risk of collisions increases. …”
Get full text

Vulnerability Analysis of Catenary-Bridge-Track System by Bin Yan, Limei Yu, Zhe Li, Zhiping Zeng

“…The ballastless track can significantly increase the probability of no damage to the fasteners, and it is recommended that the ballastless track be used when designing high-speed railway bridges in earthquake-prone regions.…”
Get full text

Gaze–Hand Steering for Travel and Multitasking in Virtual Environments by Mona Zavichi, André Santos, Catarina Moreira, Anderson Maciel, Joaquim Jorge

“…We present a gaze–hand steering technique that combines eye tracking with hand pointing: users steer only when gaze aligns with a hand-defined target, reducing unintended actions and enabling free look. Speed is controlled via either a joystick or a waist-level speed circle. …”
Get full text

Hardware implementation of Boolean functions based on the automaton model by A. A. Butov

“…Currently, electronic control devices are increasingly being introduced into various household and production products. …”
Get full text

Exploring the relationship between climate change, air pollutants and human health: Impacts, adaptation, and mitigation strategies by Gibson Owhoro Ofremu, Babatunde Yusuf Raimi, Samuel Omokhafe Yusuf, Beatrice Akorfa Dziwornu, Somtochukwu Godfrey Nnabuife, Adaeze Mary Eze, Chisom Assumpta Nnajiofor

“…To lessen the speed and severity of climate change, mitigation focuses on cutting greenhouse gas emissions. …”
Get full text

Intellectual Rooms based on AmI and IoT technologies by Radhakrishnan Delhibabu, Pham Tuan Anh, Nataly Zhukova, Alexey Subbotin

“…The system's effectiveness was evaluated using simulated test data representing various patient scenarios and abnormal actions, comparing four conditions with incrementally added data sources (public camera, smartphone, sensors, and environmental objects).ResultsThe system demonstrated a significant increase in the speed of providing assistance, with an average improvement of over 25%. …”
Get full text

Cluster of factors associated with physical frailty in community-dwelling elderly people by Saulo Vasconcelos Rocha, Manuela Alves dos Santos, Iasmim de Santana Meira Santos, Clarice Alves dos Santos, Mariana Alves dos Santos, Maria Luiza Oliveira Silva, Guilherme Eustáquio Furtado, Hector Luiz Rodrigues Munaro

“…As for sociodemographic variables, those who were older and had lower levels of education were more likely to have three or more risk factors. The development of actions that encourage a healthier lifestyle to favor the prevention and treatment of physical frailty, as well as to increase health literacy and knowledge, may reduce the problems related to this condition in older adults, mainly thinking about the next generations. …”
Get full text

Basal ganglia components have distinct computational roles in decision-making dynamics under conflict and uncertainty. by Nadja R Ging-Jehli, James F Cavanagh, Minkyu Ahn, David J Segar, Wael F Asaad, Michael J Frank

“…The basal ganglia (BG) play a key role in decision-making, preventing impulsive actions in some contexts while facilitating fast adaptations in others. …”
Get full text

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. …”
Get full text

Artificial Intelligence in the Politics of the EU and China by Nikolay V. Litvak, Natalia B. Pomozova

“…The examples of problems of ethics, competition, and security show the differences in the regulation of AI implementation processes, as well as the uncertainty that increasingly determines the actions of European politicians. …”
Get full text

The influence of the mode of engine operation of transport and technological cars on the beating at the coupling piston-cylinder by Shtain G.V., Panfilov A.A.

“…Relocation or beating of the piston occurs due to the action of lateral force in the crank mechanism, which leads to an increase in friction forces and shock loads in conjunction with the sleeve. …”
Get full text

Analytical Investigation of Dynamic Response in Cracked Structure Subjected to Moving Load by Shuirong Gui, Hongwei Zeng, Zhisheng Gui, Mingjun Tan, Zhongzhao Guo, Kai Zhong, Yongming Xiong, Wangwang Fang

“…Under cyclic moving load action, tensile-dominant structures are prone to crack initiation due to cumulative damage effects. …”
Get full text

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. …”
Get full text

Dilemma of Prioritising Health and the Economy During COVID-19 Pandemic in Indonesia by Siti Setiati, Muhammad K Azwar

“…Pandemics also depress economy through decrease in both supply and demand. Data from flu pandemic a century ago suggested the importance of aggressiveness and speed of intervention. …”
Get full text