Algorithms for Computing Wiener Indices of Acyclic and Unicyclic Graphs by Bo Bi, Muhammad Kamran Jamil, Khawaja Muhammad Fahd, Tian-Le Sun, Imran Ahmad, Lei Ding

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Analysis on Cage Dynamic Characteristic of Angular Contact Ball Bearing During Deceleration by Wenbing Tu, Haibin He, Leping Liu, Ya Luo

“…Taking angular contact ball bearing 7603025 as investigation object, a dynamics analysis model of multi-rigid-body for angular contact ball bearing is established. Based on Adams software, the influence of radial force, axial force and angular acceleration on its dynamic characteristics in the deceleration process is analyzed, which are the speed and centroid trajectory of cage, and the contact force between rolling ball and cage. …”
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Modeling the Separating Pedestrian Flow in T-Shaped Passage Based on Guide Sign by Hong-fei Jia, Yong-xing Li, Li-li Yang, Ya-nan Zhou

“…On the platform of MATLAB software, separating pedestrian flow simulation with the effect of guide sign is realized. …”
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Analysis of Stiffness Characteristic of Five-degree-of-freedom Hammer Riveting Robot based on Spiral Theory by Chunying Jiang, Xiangchen Liu, Changlong Ye, Huan Zhou, Xu Guan

“…In view of the characteristics of the 5-DOF hammer riveting robot， combining Lie group Lie algebra and spiral theory， its kinematics model is established and solved； use the exponential product formula to derive the Jacobian matrix of the robot，and use the stiffness mapping theory to solve the stiffness matrix of the robot； the finite element and Matlab simulation software are used to simulate and verify the end deformation under the general pose and the extreme pose，and the stiffness distribution map of the robot in the task space varying with the change of pose is given；the simulation result is compared with the theoretical calculation value and the error is not more than 10%，which verify the correctness and effectiveness of the established stiffness model and provide important reference for optimization of subsequent work path.…”
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Research on Wi-Fi indoor positioning technology based on knowledge graph by Jiandong LI, Jingjing YANG, Ming HUANG

“…Among the common Wi-Fi indoor positioning methods, most of the research focuses on the positioning accuracy, a little is on the application system to organize and process the existing indoor data efficiently in order to realize the indoor location service.To deal with these issues, the knowledge graph with the traditional indoor positioning technology was combined, and a practical positioning system was built with a variety of software development technologies.The system integrates the physical space and the information space.The information space includes indoor information acquisition, cloud services, information storage and computing parts.The physical space expresses the structure of the indoor space and data relationships.Finally, the WEBGL technology was used to display intuitive positioning and realize the visualization of indoor signal data and positioning results.The system has a complete data storage and use mechanism.After integrating the existing data information of the indoor internet of things equipment, it can provide users with room-level location services.The step-by-step positioning function of the system helps to reduce the time consumption of the system.…”
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Preparation of High-Purity Normal Hexane from Reformate Raffinate by Adsorption and Distillation Processes by Jichang Liu, Tengya Ni, Juntao Liu, Benxian Shen

“…According to the simulation results obtained using the software Aspen Plus , when the distillation tower has 15 stages, the n-hexane concentration can reach 99.02% with a recovery rate of 72.89% at the reflux ratio of 7.5. …”
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Research on Safety Monitoring Management System of Earth-Rock Dams Based on BIM+GIS and Its Application by ZHANG Xiaoyang, HANG Xuchao, JIA Yuhao, QIAN Feng

“…In addition,a three-dimensional (3D) design solution for earth-rock dams based on Bentley software is put forward to build a fine 3D model with unique codes connected to the whole process of instrument management.Thus,multi-source data are collected and integrated into this system to ensure system applications.The system functions mainly include visual displays,monitoring instrument management,as well as data management and analysis.The application of the system in earth-rock dams in Hubei Province shows good results,which has laid a solid foundation for the digital and intelligent operation and maintenance of engineering.…”
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Simulation Analysis of Face Gear Roll Forming by Guang Zhang, Fengshou Zhang, Yuanyuan Jin, Li Li

“…Based on the roll deformation theory，a roll model through Deform-3D finite element simulation software is established，the roll forming process of the face gear is analyzed and the metal flow conditions of the active and passive faces of the face gear tooth profile is analyzed according to the finite element simulation results； the influence trend of process parameters on the maximum load of the rolling wheel and the distribution law of equivalent strain and equivalent residual stress on the tooth profile are analyzed. …”
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Influence of Concrete Creep on the Bending of a Prestressed Bridge Beam by Petr P. Gaidzhurov, Elvira R. Iskhakova, Nina A. Saveleva

“…Therefore, the problem of developing a finite-element algorithm and corresponding software allowing the modelling of the volumetric stress-strain state of large-span prestressed reinforced concrete structures within the framework of the theory of hereditary aging is relevant.…”
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An Asymmetrical Mixed Higher-Order Discontinuous Galerkin Time Domain Method for Electromagnetic Scattering from the Plasma Sheath around a Hypersonic Vehicle by Jirong Guo, Yiping Han

“…The physical properties of the nonuniform plasma flow were obtained using computational fluid dynamics software with unstructured grids. In this study, a detailed computational model was reconstructed with the high-order Lagrange grids for the nonuniform plasma flow region and the high-order Serendipity grids for the homogeneous medium region. …”
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Evaluation of Economic and Social Parameters of Smart City Growth Impact (Case Study: Isfahan City) by sajedeh karimi

“…Data analysis, based on structural equation analysis, was performed in AMOS software. The results indicate that urban smart growth in Isfahan is influenced by social and economic variables, among which the role of economic variables in urban smart growth have more influence than social variables, which impact factor of economic variable role. …”
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Parameter Optimization Design of the Aged Chair Auxiliary Standing Mechanism by Zhou Hui, Qin Baorong, Zhang Dongdong, Xiang Bingle, Bao Jiahua, Wang Zhengxing

“…For the problem that the traditional auxiliary standing mechanism have the poor force transmission characteristic and mechanism efficiency,a motion simulation and parametric modeling is carried out by using the multi- body dynamics simulation software ADAMS. Then,the optimization analysis with the target that transmission angle of auxiliary standing four- bar mechanism obtain maximum value is carried out. …”
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Numerical Simulation and Shear Capacity Study of a New Double-Steel-Plate Shear Wall by Xiaomeng Zhang, Qingying Ren, Jiaqi Wang, Ziao Liu, Xiao Yang

“…Through the finite element software, the stress and plastic strain of steel plate and concrete in different loading stages of the wall are analyzed, the mechanical properties and failure rules of the wall are revealed, and the failure mechanism of the wall is obtained. …”
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Research on Fatigue Crack Growth Test and Numerical Simulation of 20CrMnTi Gear Steel by Junbei Ma, Qinhao Zhang

“…Then use the numerical simulation software Abaqus to numerically simulate the fatigue crack growth process. …”
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Impact of Brake Pad Structure on Temperature and Stress Fields of Brake Disc by Guoshun Wang, Rong Fu

“…Utilizing ABAQUS finite element software, the study established the relationship between a brake pad structure and distributions of temperature and thermal stress on brake disc. …”
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PERFORMANCE OPTIMIZATION OF TRANSMISSION GEAR BASED ON OPTIMAL MODIFICATION DESIGN by HAN Wei, REN ZhiQun

“…Taking the gear transmission mechanism of a five-gear transmission as the research object,the simulation model of the gear transmission mechanism of the transmission is established by using Romax Designer software,and the load-bearing situation,transmission error and load distribution on the tooth surface of the 4 th gear are simulated and analyzed. …”
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Mechanism Design and Simulation Analysis of Obstacle Surmounting Multi-leg Robot by Jun Liu, Chengmin Wang, Feng Wang

“…In order to ensure that the center of gravity does not change in the process of robot moving，the tread curve of tread is designed by Matlab software，and the influence rules of different size parameters of leg mechanism on tread curve，horizontal velocity and acceleration of the contact point of single tread and ground are analyzed. …”
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Developing a Model for the University Course Timetabling Problem: A Case Study by Mozhgan Mokhtari, Majid Vaziri Sarashk, Milad Asadpour, Nadia Saeidi, Omid Boyer

“…To convert the multiobjective model into a single one, the ε-constraint method was adopted, and the model’s accuracy and feasibility were examined through a real example solved by the CPLEX solver of GAMS software. The results approved the efficiency of this model in preparing a timetable for university lectures.…”
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Research on the Rule and Life Prediction of Tooth Root Crack Propagation based on Fatigue Experiment and Numerical Analysis Method by Mouqing Zhang, Shinian Fang, Chunlei Pu, Hongzheng Han, Hui Ma, Mingtao Wang, Xu Li

“…The automatic propagation of the root crack of modified spur gear with same initial crack is analyzed by using the simulation software FRANC3D， and the propagation direction and path of the crack are determined. …”
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RESEARCH ON ULTRASONIC GUIDED WAVES IN FOULING PIPES VIBRATION CHARACTERISTICS BASED ON SIMULATION ANSYS by SUN LingFang, WU ChunYing, PIAO Heng

“…Ansys finite element simulation software was used to establish the model of hollow and fouling pipelines. …”
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