Supply Chain Risk Prevention and Control Based on Fuzzy Influence Diagram and Discrete Hopfield Neural Network by Xin Su, Maohua Zhong

“…Using the model that both calculates the risk size and occurrence probability of the supply chain and allows identifying various risk prevention and control levels, the supply chain risk is evaluated both objectively and fairly. …”
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Influence of Radial Journal Profile of Main Bearing on Lubrication State by Chunjian Li, Junsheng Zhao, Guixiang Zhu, Xiuchun Li, Guodong Zhang

“…The results show that， compared with the calculated results without considering the radial journal profile， when the influence of the radial journal profile is taken into account， the minimum oil film thickness of the main bearing increases by 25.95%， the maximum oil film pressure decreases by 17.69%， the mean friction power loss decreases by 6.14% and the inclination of the spindle neck is improved. …”
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Optimization strategy of distribution network operation considering multi-investment entities under the situation of ubiquitous power Internet of things by Xiaodong SHEN, Junyong LIU, Shuai HU, Ping RAO, Mai HE

“…The ubiquitous power Internet of things encourages a large number of new power equipment, such as distributed power supply, energy storage and electric vehicles, to connect to the distribution network.With the increasing penetration of renewable energy in the distribution network and the gradual opening of the electricity market, the investment entities of the power grid tend to be diversified.The uncertainty of the access of renewable energy to the power grid and the coordination of the interests of various entities resources is increasingly prominent.Considering the profits of distributed energy resources (DER) investors in the regional distribution network, an optimal operation strategy based on the incentive mechanism in ubiquitous power Internet of things was proposed.This strategy could reduce the adverse effects of load fluctuations and reversed power flow on the power grid, while increasing profits for DER investors.The calculation example shows the effectiveness of the proposed method.…”
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Over-deterministic method: The influence of rounding numbers on the accuracy of the values of Williams’ expansion terms by Vladimir Ruzicka, Lucie Malikova, Stanislav Seitl

“…The values of Williams’ expansion terms based on the displacement data obtained are calculated by using various levels of rounding numbers and the results are compared and discussed.…”
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Intrinsic field-effect mobility in thin-film transistor with polycrystalline In2O3 channel based on transfer length method by Takanori Takahashi, Yukiharu Uraoka

“…Field-effect mobility ( μ _FE ), calculated using transconductance in thin-film transistors (TFTs) includes error factors from determination of channel width/length and parasitic resistance ( R _s/d ) at source and drain regions. …”
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Estimating Vehicle Stability Region Based on Energy Function by Yu-guang Yan, Hong-guo Xu, Hong-fei Liu

“…Vehicle test in the same condition shows that the calculated stability region defined by Lyapunov and system stability theorem has good effect on characterized vehicle stability and it could be a valuable reference for vehicle stability evaluation.…”
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Damage Evaluation of Bridge Hanger Based on Bayesian Inference: Analytical Model by Yang Ding, Jing-liang Dong, Tong-lin Yang, Zhong-ping Wang, Shuang-xi Zhou, Yong-qi Wei, An-ming She

“…For the damage evaluation model, the analytical expressions for calculating the weights by finite mixture (FM) method are derived. …”
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Superconductivity in Weyl semimetals with time reversal symmetry by Xuesong Bai, W LiMing, Tao Zhou

“…Our meticulous self-consistent calculations have unveiled a dual superconducting gap at the surface. …”
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Undercut Analysis of Cylindrical Helical Circular Arc Gear by Xiaoping Huang, Linlin Zhao

“…When applied to the pure rolling circular arc gear and W-N circular arc gear, above results are verified and extended, and new conclusions and undercut calculation data that gear workers want to know are obtained. …”
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The net impact of telework on restaurant revenues in Canada by Tahsin Mehdi, René Morissette

“…Controlling for changes in COVID-19 restrictions and Canadians’ health concerns, the study estimates that an increase of 1 percentage point in the monthly incidence of work from home was associated with a 0.55 percentage point reduction in the monthly growth rate of receipts in food services and drinking places in a given province during that period. Simple calculations based on these estimates suggest that the increase in work from home observed from February 2020 to April 2020 accounted for about one-third of the drop in revenues observed in this subsector between these two months.…”
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Research on Meshing Force of Harmonic Reducer based on No-load Backlash and Circumferential Meshing Stiffness by Ziying Wang, Qungui Du, Dongzhou Zheng, Yuhang Hu, Mengfei Liu, Longfeng Zhong

“…The no-load backlash in the assembled state is calculated by geometric method，and the circumferential meshing stiffness is obtained through establishing and analyzing the mechanical model of the flexspline under load. …”
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Sensitivity Studies for the Exercise I-1 of the OECD/UAM Benchmark by E. Canuti, A. Petruzzi, F. D'Auria, T. Kozlowski

“…The objective of the present paper is to study the effect of the numerical discretization error and the manufacturing tolerances on fuel pin lattice integral parameters (multiplication factor and macroscopic cross-sections) through sensitivity calculations. The two-dimensional deterministic codes NEWT and HELIOS were selected for this work. …”
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Entanglement Transfer through an Antiferromagnetic Spin Chain by Abolfazl Bayat, Sougato Bose

“…One member of a pair of maximally entangled spins is initially appended to one end of a chain in its ground state and the dynamical propagation of this entanglement to the other end is calculated. We show that, compared to the analogous scheme with a ferromagnetic chain in its ground state, here the entanglement is transmitted faster, with less decay, with a much higher purity and as a narrow pulse form rising nonanalytically from zero. …”
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MOTION RELIABILITY ANALYSIS OF A 6⁃DOF INDUSTRIAL ROBOT by LI ZiYi, DING Li, MA Rui, DUAN JinJun

“…In order to evaluate the reliability and accuracy of the end⁃effector of a six⁃degree⁃of⁃freedom industrial robot in the task space,a robot motion reliability analysis strategy based on the envelope method was proposed.Firstly,the error function and reliability model of the robot system was obtained through kinematics.Secondly,the envelope method was used to solve the reliability model to obtain the failure probability of the end⁃effector,and the error function was linearized by Taylor′s formula,while redundant points in the covariance matrix were excluded in the calculation process to make it conform to the positive definite condition and improve the accuracy of the envelope.Finally,the proposed method was simulated and analyzed.The results show that the error of the envelope method compared with the Monte Carlo method is 0.5%~19.8%,which verifies the effectiveness of the method.…”
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The Novosibirsk Reservoir In fluence on the Ob River Water Levels during Spring Flood Periods (Kamen-na-Obi as a case study) by Aleksandr T. Zinoviev, Konstantin B. Koshelev, Konstantin V. Marusin

“…We have carried out a computer model of the flow in the Ob River section from Kamen-na-Obi to the Novosibirsk hydro power plant dam site based on the two-dimensional unsteady hydrodynamic model (Saint-Venant equations). Variant calculations of water levels for various water discharges in the Ob River and different levels of the Novosibirsk Reservoir in the absence of congestion were performed for the site under consideration. …”

Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining by Xiaoqian Zhang, Chengmin Wei, Heng Zhang

“…Combined with the characteristics of surrounding rock, the calculation model is established by using discrete element simulation technology and considering the joints of surrounding rock. …”
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DESIGN AND THE MECHANICAL PROPERTIES STUDY OF A SWING-STYLE OFFICE LOUNGE CHAIR by ZHANG DongDong, QIN BaoRong, WANG ZhengXing, LIU Lei, XIANG BingLe, ZHOU Hui

“…The stress and strain of the structure were calculated under the function load and proof load. The prototypes were made and tested,and the satisfied results were gotten. …”
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PROJECT-ORIENTED MANAGEMENT OF ENVIRONMENTAL ENTREPRENEURSHIP IN THE REGIONS by V. V. Sokolenko, D. V. Chabrova, E. L. Koptenok

“…The carbon budget of forest ecosystems has been calculated and analyzed, the increase of which is aimed at increasing the yield of “clean” agricultural products with high benefit while reproducing natural systems that affect the improvement of its quality. …”
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NEW PROFILE MODIFICATION METHOD OF NON⁃UNIFORM MESHES BASED ON SHAPE FUNCTION by LIU Meng, GANG XianYue, CHE YeJun, MENG Peng, ZHANG Fan

“…A new profile modification method of non⁃uniform meshes was proposed to solve the problem of premature failure of mechanical components due to uneven contact pressure distribution.Based on the element shape function and"virtual nodes",a formula was developed to formulate the mechanical relation between the contact nodes of the non⁃uniform mesh,a mathematical equation was derived to formulate the correspondence between the node modification and the contact pressure,and a minimax model was developed to solve the modification by minimizing the maximum contact pressure.In order to improve global convergence and computational efficiency of the modification calculation,the minimax model was transformed into a linear programming model.The applicability and effectiveness of this new profile modification method for general elastic contact modification problems was verified by three elastic contact modification examples.…”
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Nanostructural theory of metal melts. Foundry production and metallurgy by E. I. Marukovich, V. Yu. Stetsenko

“…Based on thermodynamic calculations, a nanostructural theory of metal melts has been developed. …”
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