Real‐Time Monitoring of Ionosphere VTEC Using Multi‐GNSS Carrier‐Phase Observations and B‐Splines by Eren Erdogan, Michael Schmidt, Andreas Goss, Barbara Görres, Florian Seitz

“…Due to their localizing feature, B‐splines form a highly sparse structure in the filter measurement model. Thus, matrix operations for large‐scale problems can be performed fast using sparse matrix operations, as is done in this study. …”
Get full text

Spatiotemporal analysis of oil palm land clearing by M.K. Rosyidy, E. Frimawaty

Get full text

SCMA codebooks design for Rayleigh fading channel by Tuofeng LEI, Shuyan NI, Naiping CHENG, Xin SONG

“…According to the symbol error eate (SER) of the superimposed constellation, the near-optimal space code multiple access (SCMA) codebooks were explored under uplink and downlink Rayleigh fading channels, respectively.A near-optimal codebook design scheme was proposed based on the mathematical model between the superimposed constellation and the SER formula.And the proposed design procedures could be summarized as follows, design the factor graph matrix, match the best codeword pair, and find the optimal angle.Numerical results are provided to demonstrate that the proposed scheme can achieve near-optimal SER performance.…”
Get full text

Identification of Acoustic-Vibratory System by Acoustic Measurement by Takuzo Iwatsubo, Shozo Kawamura, Masahito Kamada

“…The key point of the method is that the identified vibration of the sound source is expressed as a superposition of vibration modes. The mathematical property of the coefficient matrix, the practical error expanding ratio, and the stochastic error expanding ratio are investigated in a numerical example. …”
Get full text

Design of the Flat Evolution Model Cam Profile of German High-speed Printing Press Mechanism by Lü Chuqi, Wu Qiuping, Li Yanping, Chang Yong

“…By adopting the principle of kinematic inversion and the mathematical tools such as rotation matrix,the general analytic formula of cam contour of flat evolution type of high-speed printing press mechanism from German is obtained through deduction. …”
Get full text

Stabilization of Discrete-Time Planar Switched Linear Systems with Impulse by Yanli Zhu, Yuangong Sun

Get full text

Stochastic Delay Logistic Model under Regime Switching by Zheng Wu, Hao Huang, Lianglong Wang

Get full text

Research on Parallel Assembly Sequence Planning of Vertical Planetary Gearboxes Based on the Ant Colony Algorithm by Xu Wentao, Zhang Liyong, Zhi Yanfeng, Li Tongjie, Wang Juan, Wang Changlu, Jiang Yehu, Chen Jijie, Wang Wenxiang

“…In this study, taking vertical planetary gearbox as an example, assembly coupling undirected relation diagram is used to determine the assembly coupling relation, and the assembly association matrix is transformed into mathematical information. …”
Get full text

Multi-objective Optimization Design for a Kind of Three-translation Parallel Robot Mechanism by Zhiyuan Ma, Wei Zhu, Hanbing Li, Kanrong Gu, Chuanwei Wang, Jiuwei Shi

“…A kind of 2RRPaR+PPaP three translational space parallel mechanism is designed, and the forward and inverse position solutions equation and Jacobi matrix of the mechanism are derived. The optimization mathematical model is set up with the optimization goal of workspace and global dexterity. …”
Get full text

Research of Reachable Workspace of 2-RPR+RRP Spherical Hybrid Mechanism by Zhao Jianwen, Song Shengtao, Li Ruiqin, Li Dahai

“…Secondly,taking the geometric relation of mechanism as the constraint condition and combining with the rotation matrix,the mathematical model of the closed positive solution of the kinematics position of the mechanism is established. …”
Get full text

Research of the Kinematics of Rod-gear Type Pulse CVT based on Matlab by Chen Suifan, Dong Zhifeng

“…Based on the analysis of transmission mechanism of rod-gear type Pulse Continuously Variable Transmission（ P-CVT）,the closed vector equations of equivalent plane six-bar mechanism are built. The kinematic mathematical model of angular displacement,angular velocity and angular acceleration of connecting rod,rocker and meshing point to input shaft axis of single phase transmission mechanism is constructed by the matrix method. …”
Get full text

STUDY ON KINEMATICS AND SINGULAR POSITION OF A 5-AXIS MACHINE TOOL by LAI Xiao

“…According to the AC-type five-axis machine used in Lab,the kinematic matrix transformation of the five-axis coordinate is analyzed,and the mathematical relation between the tool axis vector and the angle of the rotation table is finally obtained. …”
Get full text

Load Tooth Contact Analysis for Arc Tooth Face Gear Considering Assembly Misalignment by Cui Yanmei, Fang Zongde, Wang Xing

“…By application of the elastic contact mechanics,finite element influence matrix method and mathematical programming method,the load tooth contact analysis for arc tooth face gear is carried out,the load distribution and contact stress of tooth surface pair are studied in different installation error. …”
Get full text

On the decay of strength in Guilin red clay with cracks by Yi Li, Keneng Zhang, Baochen Liu, Zongyuan Pan

“…After each dry-wet cycle, direct shear tests were carried out on the sample, and such variables as matrix suction on the crack propagation process of red clay were analyzed. …”
Get full text

Frozen Weights as Prior for Parameter-Efficient Fine-Tuning by Xiaolong Ma, Peishun Liu, Haojie Gao, Zikang Yan, Ningning Ma, Wenqiang Liu, Xuefang Wang, Ruichun Tang

Get full text

Additional limitations when searching for images on stereopairs along epipolar lines by V. P. Pivovarov, A. V. Zubar

“…The feature of the given approach is a possibility of finding the restrictions based on mathematical dependences, which do not require the finding of the fundamental matrix and preliminary processing of images.…”
Get full text

A Numerical Method for Partial Differential Algebraic Equations Based on Differential Transform Method by Murat Osmanoglu, Mustafa Bayram

Get full text

New Results on Reachable Set Estimation and Controller Design for Linear Systems with Mixed Delays via Triple Integral Functionals by Wei Kang, Shouming Zhong

Get full text

Passivity and Synchronization of Multiple Multi-Delayed Neural Networks via Impulsive Control by Yong Wang, Zhichun Yang, Tonglai Liu, Hong-An Tang

Get full text

Delay-Dependent Stability in Uncalibrated Image-Based Dynamic Visual Servoing Robotic System by Tao Li, Hui Zhao, Yu Chang

“…A Lyapunov-Krasovskii functional is constructed, and a rigorously mathematic proof is given. Finally, the simulation results are presented to show the effectiveness of the proposed control scheme.…”
Get full text