Design and Discrete Element (DEM) Simulation Analysis of Grassland Ecological Cleaning and Restoration Vehicle by Lvfa Yin, Anfu Guo, Chang Liu, Minghui Guo, Dechao Yang, Xianxiang Gao, Hailong Wu

“…To reduce the weight of the grassland ecological restoration vehicle disk brush, force analysis and topology optimization are carried out to reduce the weight of the disk brush by 55.43%. …”
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Multi-agent deep reinforcement learning for RIS-assisted secure UAV communication by Bojia Zhao, Danyang Qin, Yuhong Chen, Jiaqiang Yang, Huapeng Tang, Lin Ma

“…Our goal is to maximize the sum secrecy rate (SSR) of the communication system by jointly optimizing the UAV flight trajectory, active and passive beamforming, and transmission power. …”
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METHODS FOR INCREASING THE EFFICIENCY OF A DUAL-CHANNEL OPTO-ELECTRONIC SIGHT by R. V. Fiodortсev, A. P. Shkadarevich, Qusai Eid Mohammad, A. V. Fufaev

“…In the variant with Picatinny rail, the loads are smaller and distributed more evenly along the line of the body of the sight. Calculations of the trajectory of the bullet from the cartridge 7Н10 with a caliber of 5.45 mm for the AK74Н at distances of 300 and 1000 m were carried out. …”
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Assignment Technology Based on Improved Great Wall Construction Algorithm by Xianjun Zeng, Yao Wei, Yang Yu, Hanjie Hu, Qixiang Tang, Ning Hu

“…A model integrating battlefield environmental factors, 3D terrain data, and threat assessments is developed for optimized task allocation and trajectory planning. …”
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Resilience Enhancement for Distribution Networks Under Typhoon-Induced Multi-Source Uncertainties by Naixuan Zhu, Guilian Wu, Hao Chen, Nuoling Sun

“…Next, based on the vulnerability identification results, a resilience enhancement model for DNs is constructed through the strategy of coordinating line reinforcement and energy storage configuration, and the resilience optimization scheme that takes into account the system resilience enhancement effect and economy is obtained under the optimal investment cost. …”
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Design and analysis of timing silent chain system based on hybrid electric passenger vehicles by YANG Zeyu, ZHU Kaihong, XIA Chunyu, SHI Pengli

“…The design method will provide reference for the subsequent design and optimization.…”
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A Simple Method for Correcting Empirical Model Densities During Geomagnetic Storms Using Satellite Orbit Data by Daniel A. Brandt, Charles D. Bussy‐Virat, Aaron J. Ridley

“…Numerous CubeSats with publicly available ephemeris in the form of two‐line element (TLEs) sets orbit in this region. We present the Multifaceted Optimization Algorithm (MOA), a method to estimate the thermospheric density by minimizing the error between a modeled trajectory and a set of TLEs. …”
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A physics-informed Airy beam learning framework for blockage avoidance in sub-terahertz wireless networks by Haoze Chen, Atsutse Kludze, Yasaman Ghasempour

“…In principle, an infinite number of trajectories can be engineered. To find the optimal trajectory, we develop a physics-informed machine-learning framework for Airy beam shaping based on a detailed understanding of near-field electromagnetics, ray optics, and wave optics. …”
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Research on Shortest Path Planning and Smoothing Without Obstacle Collision Based on Moving Carrier by Lingsong Di, Defeng Sun, Yahui Qi, Zhicai Xiao

“…It obtains the trajectory on the arc after edge straight line fitting, followed by further smoothing treatment. …”
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Improved RRT-Based Obstacle-Avoidance Path Planning for Dual-Arm Robots in Complex Environments by Jing Wang, Genliang Xiong, Bowen Dang, Jianli Chen, Jixian Zhang, Hui Xie

“…For collision checking in the dual-arm workspace (self and environment), a cylindrical-spherical bounding-volume model simplifies queries to line-line and line-sphere distance calculations, significantly lowering computational overhead. …”
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Energy Efficiency Maximization in RISs-Assisted UAVs-Based Edge Computing Network Using Deep Reinforcement Learning by Chuanwen Luo, Jian Zhang, Jianxiong Guo, Yi Hong, Zhibo Chen, Shuyang Gu

“…Therefore, we propose the Deep Deterministic Policy Gradients based UAV Trajectory and RIS Phase shift optimization algorithm (UTRP-DDPG) to solve this complex optimization challenge. …”
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Joint Event Density and Curvature Within Spatio-Temporal Neighborhoods-Based Event Camera Noise Reduction and Pose Estimation Method for Underground Coal Mine by Wenjuan Yang, Jie Jiang, Xuhui Zhang, Yang Ji, Le Zhu, Yanbin Xie, Zhiteng Ren

“…The attitude estimation framework adopts the noise reduction event and global optimal perspective-n-line (OPNL) methods to obtain the initial target attitude, and then establishes the event line correlation model through the robust estimation, and achieves the attitude tracking by minimizing the event line distance. …”
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Alternative trans-parenchymal access for percutaneous contact nephrolithotripsy by Yu. Yu. Malinin

“…An actual issue of modern endoscopic surgery for urolithiasis is the development of techniques for optimal access to the stone. Percutaneous access during contact nephrolithotripsy (PCNL) is believed to reach the pyelocalyceal system (PCS) along the shortest trajectory and pass through the small calyces. …”
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Toward Proactive, Secure and Efficient Space-Air-Ground Communications: Generative AI-Based DRL Framework by Amayika Kakati, Guoquan Li, Elhadj Moustapha Diallo, Lilian Chiru Kawala, Nasir Hussain, Abuzar B. M. Adam

“…To tackle the demands of secrecy energy efficiency (SEE) in this dynamic and complex network, we formulate a non-convex optimization problem that jointly considers HAP trajectory, user-HAP association, and beamforming. …”
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AUV Online Path Planning Strategy Based on Sectorial Gridded Detection Area by Yang Liu, Jinxi Sun, Guojie Li, Xiujun Xu

“…Then, a comprehensive cost function combining safety, smoothness, and cost is utilized to generate the optimal heading. Furthermore, to safely pass through narrow passages, a sequence of subgoals for polynomial trajectory planning are determined on the perpendicular bisector ahead of the central line. …”
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A Distributed Collaborative Navigation Strategy Based on Adaptive Extended Kalman Filter Integrated Positioning and Model Predictive Control for Global Navigation Satellite System/... by Wanqiang Chen, Yunpeng Jing, Shuo Zhao, Lei Yan, Quancheng Liu, Zichang He

“…In the curved path-tracking experiments, both robots demonstrated high trajectory conformity while traveling along a predefined path combining straight-line and circular arc segments, with lateral errors in the straight-line segments all below 0.05 m. …”
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Local Linear Wavelet Neural Network–Based Unscented Kalman Filter for Vehicle Collision Estimate Warning System and Ensuring Stable Vehicle-to-Infrastructure Communication by Yonas Kebede Lema, Satyasis Mishra, Demissie J. Gelmecha

“…This powerful time-series modeling technique allows the system to anticipate the vehicle’s trajectory and potential collision risks. The UKF then optimally fuses the LLWNN predictions with the real-time sensor data, including information received through V2X communication, to generate accurate, up-to-date estimates of the vehicle’s state. …”
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An Improved Autonomous Emergency Braking Algorithm for AGVs: Enhancing Operational Smoothness Through Multi-Stage Deceleration by Wenbo Li, Junting Qiu

“…The AEB algorithm not only considers straight-line driving scenarios but also optimizes deceleration strategies for turning scenarios, adjusting the deceleration detection range according to the turning trajectory. …”
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Broken Stick Model for Irregular Longitudinal Data by Stef van Buuren

“…The broken stick model approximates each subject's trajectory by a series of connected straight lines. …”
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Spatial-Temporal Distribution Characteristics and Influencing Factors of High-Level Tennis Players in China by Chen Kunlun, Han Zeyu, Zhang Yu, Chu Pengfei

“…Further exploration of the spatial evolution trajectory revealed that the major axis of the standard deviational ellipse aligns in a northeast-southwest direction. …”
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