Dynamics Simulation and Dynamic Characteristic Analysis of Nutation Reducer based on SolidWorks and ADAMS by Xie Zhiyu, Yao Ligang, Zhang Jun, Cai Yongwu, Wu Yaqiang

“…The simulation results show that the rotation speed and meshing force of each gear are consistent with the theoretical values,which indicates that the proposed model can accurately predict the dynamic characteristics of the reducer,thus provides a model basis for the analysis of the dynamic characteristics and the parameter optimization design of the nutation reducer.…”
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Dynamic Propagation Characteristics of a Mode-III Interfacial Crack in Piezoelectric Bimaterials by Yani Zhang, Junlin Li, Xiufeng Xie

“…Finally, several classic numerical examples are mentioned and discussed to demonstrate that the theoretical deduction is highly accurate for interfacial crack analysis of piezoelectric bimaterials. …”
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Study on the Motion Characteristic of Carbon-free Car by Wang Chensheng, Su Fang, Fan Long, Zhang Shaowu

“…To study the motion characteristics of S-typed trajectory carbon-free car,and thus to optimize the design and adjustment.Through using the steering link mechanism to achieve carbon-free car S-type trajectory motion characteristic of the steering mechanism,the mathematical model of the relationship between the crank angle and the angle of the front wheels is built and its steering mechanism characteristics simulation is carried out by using MATLAB,the relation diagram of crank angle and the front corner of the is obtained.The mathematical model of the car trajectory is established,the parameters influence on the motion trajectory and their influence law are obtained,the relevant amount of the trajectory amplitude value is found and trajectory motion simulation of the car is carried out by using MATLAB.Eventually,the optimal cosine trajectory with the pile of 0.9 m,the amplitude of 0.095 m is got,the crank length is 21 mm at this time,a theoretical guidance for S-type carbon-free car design and adjustment is provided.…”
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Outage probability and capacity analysis of distributed MIMO systems over a composite fading channel by Wen-jie PENG, Yue-heng LI, Tuan-jie XUE, Mei-yan JU, Ping HUANG

“…The exact closed-form expressions about the outage probability and capacity of distributed MIMO systems over a composite fading channel are derived firstly by using Lognormal approximation to complicated Gamma-lognormal distribution when mobile station (MS) in the cell is fixed at some position and the so-called maximum ratio transmission/selected combining (MRT-SC) and selected transmission/maximum ratio combining (ST-MRC) schemes are adopted in uplink and downlink respectively.Then based on a newly proposed non-uniform MS cell distribution model,which is more consistent with the MS cell hotspot distribution in an actual communication environment,the average outage probability and capacity formulas synthesizing the MS cell position information are further derived.Finally,the accuracy of the approximation method and the rationality of the corresponding theoretical analysis about the system performance are proven and illustrated by computer simulations.…”
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Educational migration from the Republic of Buryatia: factors, scale and directions by G. N. Ochirova

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From resilience to viability: a case study of indigenous communities of the North Rupununi, Guyana by Andrea Berardi, Céline Tschirhart, Jayalaxshmi Mistry, Elisa Bignante, Lakeram Haynes, Grace Albert, Ryan Benjamin, Rebecca Xavier, Deirdre Jafferally

“…This paper highlights how the framework allows the measurement of community survival strategies in a consistent and theoretically corroborated way, with implications for national and international policy-makers aiming to promote resilience and sustainability.…”
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Broadband Circularly Polarized CPW-Fed Monopole Antenna with a Via-Free CRLH-TL Unit Cell by Liangyuan Liu, Xiangqun Shi

“…The influence of interdigital capacitance on the electrical performance of the antenna is analyzed theoretically and experimentally. The value of CL is changed to reduce the electrical size of the antenna, and the resonant frequency of the antenna is reduced accordingly. …”
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Mean Estimation of a Sensitive Variable under Nonresponse Using Three-Stage RRT Model in Stratified Two-Phase Sampling by Ronald Onyango, Brian Oduor, Francis Odundo

“…The efficiency of the proposed estimator is studied theoretically and numerically using two real datasets. …”
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Internal Marketing (IM): a literature review and research propositions for service excellence by Salomão Alencar de Farias

“…Even though it is not a new concept, since it was first mentioned in the literature more than 30 years ago, confusion still exist on what exactly internal marketing (IM) is. This theoretical paper reviews the IM literature and relates it to the service excellence at the same time that presents some research propositions to the development of the knowledge in this marketing area. …”
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Instituições e Cultura: difusão e modelagem internacional da política pública brasileira de combate à pobreza by Samira Kauchakje

“…This article aims to present the results of research that investigates social policies for poverty reduction of the Cardoso, Lula and Rousseff terms of office from the perspective of theoretical currents on international modeling and Policy Diffusion. …”
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A review on the catalytic ozonation of pollutants in wastewater by heteroelements-doped biochar: Internal and external doping strategies by Ruinan Zhao

“…This study provides a theoretical basis for the synthesis of low-cost and high-efficiency biochar catalysts for catalytic ozonation in real industrial wastewater treatment.…”
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Survey on backscatter communication for zero-power IoT by Xiaoxi ZHANG, Yongjun XU

“…Although Internet of things (IoT) can enhance the quality of people’s life, but it also brings the problems of energy consumption and network transmission congestion.To solve the above problems, backscatter communication technology for zero-power IoT has been proposed.Thus, it is of great significance to survey the state-of-the-art technologies and study the relevant challenges.Firstly, the basic definition and technical characteristics of zero-power IoT and backscatter communications were presented.Secondly, several typical application scenarios for zero-power backscatter communications in 6G were introduced.Thirdly, the system structure of zero-power backscatter communications was given and the potential key technologies of zero-power backscatter communications for 6G applications were also discussed.Finally, the technical challenges and potential research directions for zero-power backscatter communications were analyzed.Additionally, the proposed overview was of important theoretical significance and practical values for promoting the development of IoT toward full scenes, full spectrum, and many types of services.…”
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Research of 3D Comprehensive Modification of Transmission Gear by Zhou Xinjian, Mao Le, Li Guangxing

“…The bearing capacity,contact spot and transmission error of the unmodified first gear are analyzed. Based on the theoretical basis of helical gear axial modification and tooth profile modification,the optimum three-dimensional comprehensive modification parameters of the first gear are designed by applying the optimal Latin sampling principle. …”
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Numerical Study on the Mechanical Properties of Transmission Tower K-Joints under Cyclic Loading by Jia-xiang Li, Chao Zhang, Shu-hong Wang, Sheng-qiang Yin

“…The results provide a theoretical reference for the accurate modeling of transmission towers.…”
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Force Model for Crank Group Mechanism and Analysis of Crank Arrangement by Yansong Liu, Jujiang Cao

“…The analysis provide a theoretical basis for the structural design and size selection of crank group mechanism， and lay the foundation for further study of factors affecting force.…”
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New Type Picking-device for Fruits on High-branch by Ya'nan Zhou, Haifei Qiu, Xiaomin Zhao, Xinchao Qiao, Yifan Liu

“…Based on mechanical analysis and theoretic calculation，the design scheme of main transmission is determined by bevel gear and crank slider mechanism，and then fruits picking is realized through converting output torque of DC motor into reciprocating vibration of the branches. …”
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Formation of Rydberg crystals induced by quantum melting in one dimension by Zeki Zeybek, Peter Schmelcher, Rick Mukherjee

“…Finite-size analyses indicate that combined fluctuations drive the transition from disordered to ordered phases, contrary to the expected direction. We provide a theoretical description to understand the physics of order-by-disorder in one-dimensional systems, which are typically seen only in higher dimensions.…”
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Development of Automatic Equipment for Washing and Nondestructive Inspection of Stud Bolt by H. S. Kwak

“…Therefore, this study developed automatic equipment for washing and nondestructive inspection of stud bolts using theoretical analysis and finite element analysis (FEA). …”
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Research and design of smart campus for digital twins by LI Luying, CHEN Ping, WANG Xingjian, LI Chunxiao

“…This framework aims to offer theoretical support and practical guidance for smart campus planning and implementation, thereby empowering the construction of high-quality educational campuses in the field of education.…”
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STUDY ON THE INFLUENCE OF HEAT SINK STRUCTURE PARAMETERS ON MICRO-ENGINE CYLINDER CLOCK TEMPERATURE FIELD by LI KunQuan, WEN Rui

“…Then,the influence of some main parameters like the spacing,number and thickness of the fins is studied. It is of theoretical significance to optimize the design parameters of micro-engine block structure and improve the heat dissipation of micro engine block.…”
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