Tightly combined triple-frequency GPS and BDS for rapid wide-lane RTK positioning with consideration of carrier-phase differential inter-system bias by Wang Gao, Shuguo Pan, Liwei Liu, He Wen

“…In this paper, a tightly combined wide-lane real-time kinematic positioning method using triple-frequency GPS and BDS is proposed. …”
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Propagating speedups during quiescence escalate to the 2020–2021 surge of Sít’ Kusá, southeast Alaska by Jukes Liu, Ellyn M. Enderlin, Timothy C. Bartholomaus, Yoram Terleth, Thomas Dylan Mikesell, Flavien Beaud

“…We demonstrate that the speedups are kinematically similar to the 2020–2021 surge, differing mainly in that the surge propagates past the dynamic balance line at the lower limit of the reservoir zone, likely triggered by the exceedance of a tipping point in mass accumulation and basal enthalpy in the reservoir zone.…”
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Di (2-ethylhexyl) phthalate reduces sperm motility by decreasing sperm tail energy supply by Xiao-lu Li, Qi-meng Li, Yuan-zhuo Zheng, Die Hu, Xiao-yue Cai, Ke Yin, Yin-yin Qi, Zi yu Cheng, Xia Ning, Yang Cai, Wei Wu, Ting-yuan Lin, Tao Xu, Ling-li Zhao

“…Electron microscopy images illustrate that there are no observable changes in the basic kinematic structure of the sperm tail. However, DEHP causes a decrease in complex II activity of mitochondrial respiratory chain by interfering with the synthesis of the cofactor FAD (Flavin adenine dinucleotide), which leads to a decrease in ATP concentration. …”
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Integrated-Hybrid Framework for Connected and Autonomous Vehicles Microscopic Traffic Flow Modelling by Ammar Jafaripournimchahi, Yingfeng Cai, Hai Wang, Lu Sun, Jiancheng Weng

“…Our numerical results demonstrated that the IH model can capture the velocity fluctuations, delay times, and kinematic waves efficiently in traffic flow.…”
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Design and experiment of impeller seed guide device for rice internal suction hole direct seeding device by Yansong Shang, Bo Zhou, Jitao Yang, Shun Zhang

“…The main structural parameters of the impeller seed guide device were analyzed by constructing the kinematics model of the rice seed in the impeller seed guide process. …”
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Putting performance bias to the front-lower side of the hole on steep slopes: Differences in strategies and movements between professional and amateur golfers. by Yumiko Hasegawa, Ayako Okada, Keisuke Fujii

“…The aim, address, ball launch direction (analyzed as angles), and kinematics of the putter head and ball were measured. …”
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Research on Mechanical Aging Behavior of Grease in Rolling Bearing by Jialong Yang, Yuhao Zhang, Zongzheng Wang, Wei Pu

“…Additionally, a grease lubrication and friction model were proposed to further evaluate the lubrication performance of aged grease, using measured rheological parameters and the kinematic velocities of the disk-ball-disk device as inputs. …”
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Microclonal propagation of elite industrial grape cultivars (<i>Vitis vinifera</i> L.) by A. Yu. Fizikova

“…The industrial grape cultivars ‘Malbec’, ‘Merlot’, ‘Chardonnay’, and ‘Riesling’ from the field collection of the All-Russian National Research institute of Viticulture and Winemaking “Magarach” were used for the work.Results. …”
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Path Planning of Manipulators with the Improved RRT Algorithm in Complex Environment by Zhou Qinyuan, Zhang Lei, Deng Yueping, Zhang Chen, Lu Rirong, Hu Xianzhe

“…Aiming at the problems of the standard rapidly exploring random tree (RRT) algorithm in a complex environment, such as blind expansion, falling into local search, easy planning failure, low sampling success rate, and long paths, an adaptive goal-oriented strategy combined with an alternative strategy for regional sampling and an improved RRT algorithm of the greedy pruning strategy was proposed. Based on the kinematics of the manipulator, the envelope was used to simplify the manipulator model to improve the efficiency of collision detection. …”
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High-Precision UAV Photogrammetry with RTK GNSS: Eliminating Ground Control Points by Mehmet Nurullah Alkan

“… The advancements in Unmanned Aerial Vehicles (UAVs) have significantly enhanced the capability of the photogrammetric approaches, particularly with the integration of Real-Time Kinematic (RTK) sensors. That approach enables the operators to use the Global Navigation Satellite System (GNSS) more efficiently with the production of high-precision 3D Digital Terrain Models (DTMs). …”
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Ontology Design and Workspace Analysis of Large Complex Component Processing Robots by Qin Zhe, Song Xiaohui, Tu Wenbin

“…The 6-UPS parallel mechanism, driven by six drive rods, is used to support the series manipulator and regulate its position and pose on the one hand, and drive the robot to travel with the hybrid mechanism as the ontology on the other hand. The kinematics modeling and workspace solutions of the serial manipulator, 6-UPS parallel mechanism and the whole hybrid mechanism are completed in this study and it is proved that the workspace of the whole hybrid mechanism is significantly larger than that of the serial manipulator and the 6-UPS parallel mechanism. …”
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Digital Modeling of Cone-generated Enveloping Torus Worm by Zhi Liu, Hong Lu, Xin Kuang, Liang Xia

“…The modeling frame is established firstly， and the meshing equations of the working tooth profile in different coordinate systems for the worm are deduced by applying differential geometry， kinematics， envelope theory and space coordinate transformation method， and the digital models of the working tooth profile of the worm are established， simultaneously， the generatrices equation of bottom and addendum surface are worked out. …”
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Geometric Constraints and Anti-overturning Capability of a Reconfigurable Quadruped Mobile Robot by Chao Chai, Ruiqin Li

“…These two motion configurations have the interlocking performance. The inverse kinematics of the reconfigurable six-bar mechanism is analyzed using D-H method，and the workspace is obtained. …”
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Position/Force Tracking Impedance Control for Robotic Systems with Uncertainties Based on Adaptive Jacobian and Neural Network by Jinzhu Peng, Zeqi Yang, Tianlei Ma

“…In the inner-loop, an adaptive Jacobian method is proposed to estimate the velocities and interaction torques of the end-effector due to the system kinematical uncertainties, and the system dynamical uncertainties and the uncertain term of adaptive Jacobian are compensated by an adaptive radial basis function neural network (RBFNN). …”
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Analysis and Calculation of DOF of Multi-loop Coupling Mechanism based on Constraint Normal Line by Guojun Luo, Xiaohui Wang, Xianguo Yan, Youli Wang

“…Since spatial multi-loop coupling mechanisms are more complicated than spatial parallel mechanisms， and the coupling members are more restrained by the side effects of motion between kinematic chains， a new method for calculating degrees of freedom （DOF） suitable for multi-loop coupling mechanisms is proposed. …”
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Type Synthesis Based on Modular Combination with Virtual Rotation Center and Application by Xinning Li, Qishuo Zhang, Zongsu Zhang, Xianhai Yang, Hu Wu, Yongbo Li, Hailong Qu

“…In the end, the expanded modular units are combined to form the kinematic linkages. Based on the proposed method, the configuration design of the aerial working platform and the self-adaptive levelling platform is completed. …”
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Unified Modeling Language Application for Laparoscopic Instrument Design by Veronika Ivanova, Ani Boneva, Plamen Vasilev

“…The designed instrument provides a kinematic structure with a combination of perpendicular and parallel rotations (R R R) which avoids additional rolls and allows obtaining the optimal working area of this instrument. …”
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Multivehicle Cooperative Lane Change Control Strategy for Intelligent Connected Vehicle by Jie Ni, Jingwen Han, Fei Dong

“…It is significant to solve the difficult numerical problem caused by the dimension of collision-avoidance constraints and the nonlinearity of vehicle kinematics. In the first stage, the subject vehicle completes lane change operation. …”
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IMPROVING EFFICIENCY OF THE JET PUMP AT LOW COEFFICIENTS OF EJECTION by A. G. Butenko, S. Yu. Smik

“…The article considers methods of improving the operation of central ejectors at small ejection coefficients.The authors use mathematical simulation approach to study the particularities of kinematic structure of the flow in the mixing chamber of the central ejector operating with low ejection coefficients. …”
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Intelligent control algorithms for posture and height control of four-leg hydraulic supports by Yihui Pang, Yaoyu Shi

“…By conducting meticulous kinematic analysis of the hydraulic supports, a skeleton model of the main structural parameters of the hydraulic support was constructed. …”
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