Rigid-flexible Coupling Dynamics Simulation of a Servo Motor Planetary Reducer for Robot Joint by Jianqing Zhou, Fuzheng Qu

“…The Hertz contact theory is used to calculate the contact stiffness coefficient of the planetary gear and the sun gear and the inner gear ring. …”
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Design and Analysis of Discrete Adjustable Radius Pulley Continuously Variable Transmission by Yuegang Chu, Yun Peng, Hao Zi, Kunpeng Zhao, Aiping Song

“…The relationship between the size parameters of the discrete adjustable radius pulley transmission structure and the transmission ratio is analyzed. The calculation formula of the critical friction force of the discrete adjustable radius pulley transmission is derived. …”
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Research on Gear Early Wear Fault Diagnosis Based on the Sparse Attention Mechanism by Gao Yunduan, Tian Ye, Zhu Yongbo, Li He, Zhang Jinjie

“…Compared with other diagnosis methods, this new method can achieve a more accurate and comprehensive diagnosis, reduce analysis cost and obtain sensitive fault characteristic frequency under the same sample condition and calculation cost. The conclusion of this method can provide data support for gear maintenance.…”
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Modal Analysis and Test Research of Double Meshing Needle Teeth Cam Indexing Mechanism by Mingtao Liu, Fuyuan Zhang, Yanqi Li, Herong Liu, huaiyu Jin

“…The comparison shows that the natural frequency of the experimental modal analysis is similar to the finite element calculation. The reliability of the finite element modal analysis method is verified. …”
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Trajectory Planning and Simulation of 6-SPU Parallel Robot by Wencai Liu, Yong Xu, Jiali Chen, Zheng Liang

“…Then, the homogeneous coordinate transformation matrix and the inverse solution calculation formula are used to further determine the movement rules exerted on the end actuator when it is moving on the desired trajectory. …”
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Modeling the dynamics of two-factor socio-economic states through mappings close to extension by V. V. Egorov

“…The model is intended to be used for informational, forecasting, management and governance purposes in the presence of a sufficient digitalization’s degree of public structures, without which it is problematic to receive and transmit data for building the model, and perform related calculations.…”
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RETRACTED: Floating export duties as a tool for state regulation of the Russian grain market by S. G. Serikov

“…The transition from dollar to rubles in duty calculations has shown the viability of this method, hence the current practice is worth continuing in order to make the mechanism for distributing subsidies to grain producers from export duties received completely transparent and understandable. …”
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Neural network and Markov based combination prediction algorithm of video popularity by Xuesen MA, Shuyou CHEN, Xiangdong XU, Zhaokun CHU

“…Caching popular video into user-side in advance improves the user experience and reduces operator costs, which is a common practice in the industry.How to effectively predict the popularity of videos has become a hot issue in the industry.On account of the shortcomings of traditional prediction algorithms such as poor nonlinear mapping ability, low prediction accuracy and weak adaptability, a video popularity prediction algorithm based on a neural network and Markov combined model (Mar-BiLSTM) was proposed.Information dependencies were preserved by constructing bidirectional memory network model (bi-directional long short-term memory, BiLSTM), the prediction accuracy of the model was further improved by using Markov properties while avoiding the increase of the complexity of the model caused by the introduction of external variables.Experimental results show that compared with traditional time series and classic neural network algorithms, the proposed algorithm improves predicting accuracy, effectiveness and reduces the amount of calculation.…”
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Design and Analysis of a Chuck-type Adjustable Diameter Continuously Variable Transmission by Ning Mei, Aiping Song, Chenwei Yu

“…The new CVT uses the belt drive mode of the combination of the chuck-type adjustable radius pulley and the multi-wedge belt in the drive, and the face contact friction drive between the pulley and the drive belt is realized. The calculation formula of the effective circumferential force of the chuck-type adjustable radius pulley drive is deduced, and the variation law of the maximum effective circumferential force of the chuck-type adjustable radius pulley is analyzed, which verifies the drive ability of the chuck-type adjustable radius pulley with large torque. …”
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Words as the Measure of Measure for Measure: Shakespeare’s Use of Rhetoric in the Play by Jean-Marie Maguin

“…While it is true that rhetoric, conceived as the art of persuasion, is met under various forms and preferences in all ages, it is a less calculated pursuit in our world. Shakespeare and his contemporaries were systematically taught rhetoric in the grammar school and it offered therefore a more conscious resource than it does nowadays. …”
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Research on the development and business trend of holographic technology under 6G network by Wenjun HOU, Bing BAI, Benzhi YANG

“…Research on 6G has been carried out on a global scale.Focusing on holographic interactive services under 6G, the requirements for future network performance by studying holographic interactive scenarios and services were analyzed.A basis for business requirements for the design and research and technological evolution of 6G networks was provided.The holographic technology and application status, holographic communication and holographic interaction scenarios, as well as the technical indicators and network performance requirements of the scene business were studied.The holographic technology development stage, development maturity, holographic industry chain under 5G, and holographic technology application field distribution were defined.A holographic scene pool and scene characteristics were constructed, and six types of application scenes were formed based on the characteristics.Through the calculation of technical indicators, the bandwidth performance requirements of holographic portrait transmission were proposed.…”
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Modal Analysis of a Ball Screw Reliability Test Bench based on Rolling Joint Stiffness Characteristic by Zhou Jie, Gao Hongli, Wang Fengchen

“…Aiming at the specific on the feature that ball screw system has too much rolling joints and the Finite Element Method（ FEM） can’t simulate it well,the Hertz contact theory is used to calculate the stiffness of ball screw joint,rolling guide joint and the bearing joint. …”
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Current problems of the patent tax system by N. Z. Zotikov

“…The paper performed the theoretical calculation of the potential annual income for certain types of economic activity in the conditions of the updated patent taxation system for the city of Moscow and certain regions: the Republic of Tatarstan, the Chuvash Republic and the Republic of Mari El. …”
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Modeling of Millimeter-Wave Modulation Characteristics of Semiconductor Lasers under Strong Optical Feedback by Ahmed Bakry

“…The harmonic distortion and the third order intermodulation distortion (IMD3) are examined and the spurious free dynamic range (SFDR) is calculated.…”
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Improving the technical and operational characteristics of the railway carriage by Maryna Bulakh

“…Mathematical modeling and strength calculations have demonstrated that the modified supporting floor can significantly reduce maximum equivalent stresses, thereby ensuring the reliability and safety of the structure. …”
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Statistical modeling based fast rate distortion estimation algorithm for HEVC by Xiang MENG, Haibing YIN, Xiaofeng HUANG

“…To reduce the coding computational complexity of the rate and distortion calculations in HEVC, a fast TU level rate model with higher accuracy was proposed.The contribution percentages of different syntax elements in entropy coding were evaluated, and syntax element-wise accurate rate models were individually developed to construct the whole TU level model.In addition, coefficient levels were weighted adaptively to distinguish the nonuniform contributions of different coefficients in terms of rate profiling.Moreover, position-wise parameter was defined to depict the distribution patterns for possible non-zero coefficients within one block.The final linear rate model was developed by fine-tuning the model parameters from great amounts of samples in a statistical way.Finally, the transform domain distortion model was also established to bypass unnecessary reconstruction process.Experimental results show that the proposed algorithm can achieve 49.76% complexity reduction with 1.74% BD-BR increase for RA configuration.…”
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Control research and application of conventional operations without real-time networks by Zhengfeng ZHANG

“…On the basis of researching the timing agreement mechanism and mirror synchronization operation to ob-tain keys under the condition of no network,a logic control method was proposed based on cryptography control,non-real-time virtual communication and computing keys according to agreement,which could be well applied to dynamic authentication and switch operation of intelligent locks or switches without real-time communication net-work coverage.By using the intelligent terminal with the ability of agreed operation,a kind of “control network of cryptography” without real-time communication network was established,which could be used as a useful supple-ment to the IoT technology without communication coverage,as well as a remote object in a fixed location to transfer the right of management or use according to the order of calculation.By using the computing power of the terminal instead of the communication power of the remote end,without the need to build a backstage communication network and the communication expenses during the waiting period.…”
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Performance of Convolution Codes Based on 60 GHz Inter-Chip Wireless Interconnection System by Xuehua Li, Siyu Shen, Yafei Wang

“…On the basis of theoretical research，the maximum communication distance was calculated according to the coding gain which was simulated by MATLAB and the critical distance was achieved according to the circuit energy consumption which was evaluated by QuartusⅡ. …”
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Frost Forecasting considering Geographical Characteristics by Hyojeoung Kim, Jong-Min Kim, Sahm Kim

“…When the points were divided into two groups with weather variables, Group 1 had a coastal climate with a high minimum temperature, humidity, and wind speed and Group 2 exhibited relatively inland climate characteristics. We calculated the accuracy in the two groups and found that the precision and recall scores in coastal areas (Group 1) were significantly lower than those in the inland areas (Group 2). …”
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Approaching fuzzy sliding mode strategy for automotive suspension based on the view of enhancing ride comfort and vehicle stability by Tuan Anh Nguyen

“…Simulations are performed in the MATLAB-Simulink interface, with four cases corresponding to different road types. According to the calculation results, the displacement and acceleration values of the sprung mass are the smallest once the FSMC method is used to control automotive suspension. …”
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