Showing 801 - 820 results of 3,090 for search '"rationality"', query time: 0.05s Refine Results
  1. 801

    Design and Research of an Eight-bar Back Lifting Mechanism with Single Degree of Freedom by Sun Xuebin, Yu Chengtao, Pan Ao, Gu Cheng, Huang Guangming

    Published 2023-03-01
    “…Furthermore, according to the optimized result, the 3D model of the mechanism is built using the SolidWorks, and the rationality of the mechanism strength is verified by the joint simulation of Adams and Workbench. …”
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    Article
  2. 802

    Multiobjective Optimization Management of Construction Engineering Based on Ant Colony Algorithm by Xuejie Liang

    Published 2022-01-01
    “…The feasibility and rationality of multiobjective optimization in this paper are verified by experiments, which can effectively guide the optimization management of construction process.…”
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    Article
  3. 803

    Evaluation approach for network components performance using trustworthiness measurement by Gang XIONG, Ju-long LAN, Yu-xiang HU, Shi-ran LIU

    Published 2016-03-01
    “…For the network components selecting problem involved the process of building the new network and net-work service,a network component evaluation method was proposed based on the trustworthiness measurement and the model of the multiple attribute decision analysis.First of all,according to the flexible characteristics of the network ap-plication environment,an on-demand driven and dynamic strategy was designed for constructing trustworthiness index tree.Secondly,the uncertainty of the subjective weight was reduced by using the fuzzy analytic hierarchy process,and the combination weight calculated from the subjective objective weight was used to improve the fairness of weight-ing operation.Next,in the decision stage,the evaluation results were obtained through the integrated use of processing strategies which include the index data utility transformation,the trustworthiness attribute vector construction and the calculation of vector relative approximation degree.Finally,the rationality,applicability and validity of the presented ap-proach are demonstrated with the evaluation of the software defined network controllers,and the results contribute to provide operators more decision information.…”
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    Article
  4. 804

    Experimental Study on Measurement of Drag Coefficient of Sandy Soil Nonlinear Vadose by Yu-ping Xu, Jing-yuan Liu, Xiu-wei Chai, Sha-sha Shi

    Published 2022-01-01
    “…By adding a correction factor and verifying its rationality, the empirical formula of standard sand permeability parameters is finally obtained.…”
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    Article
  5. 805

    Credit Risk Assessment of e-Commerce Supply Chain Finance of SMEs Based on Dynamic Reward and Punishment Perspective by Baitong Chen, Xinzhong Bao, Kun Xu

    Published 2021-01-01
    “…Finally, the model is applied to SMEs credit risk evaluation of e-commerce supply chain finance to verify the feasibility and rationality of the model.…”
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    Article
  6. 806

    Faire et se faire : les ressorts d’une vie éthique enseignante cohérente by Alfred Romuald Gambou

    Published 2022-03-01
    “…Insofar as this teaching practice is based on three springs identified here, which in the face of the injunctions resulting from an instrumental rationality, make possible the emergence and the growth of a coherent teaching ethical life. …”
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  7. 807

    RESEARCH ON SOLUTION METHOD OF CONTACT STIFFNESS OF CURVIC COUPLINGS CONSIDERING TOOTH SURFACE ROUGHNESS by MA Wu, WANG AiLun, WANG Hai, YANG ZhengLie

    Published 2020-01-01
    “…Aiming at the problem that the contact stiffness analysis method of curvic couplings can not consider the contact interface microscopic morphology,an analytical model of the contact interface stiffness was proposed.Through the stress analysis and stiffness transformation,the general model of curvic couplings contact interface stiffness was obtained,and the GW rough surface model was brought into it to obtain the specific curvic couplings contact interface stiffness formula based on the GW rough surface model.Finally,the analytical model results were compared with finite element results.The effect of surface topography on the contact stiffness of curvic couplings was obtained,and the relationship between the normal contact stiffness and the tangential contact stiffness with the preload and tangential force were obtained.The research shows that the analytical model matches well with the finite element results,which proves the rationality of the analytical model and provides a theoretical reference for the preload force and torque design of the rotors with curvic couplings.…”
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  8. 808

    Design and Analysis of a Parallel Elastic Rod Robot Mechanism for Pick and Place Task by Zhang Junxia Zhang Qiuchen

    Published 2019-01-01
    “…The feasibility of the theory and the rationality of the design are verified by setting up the prototype,which also provides a reference for the industrial application of the elastic rod.…”
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    Article
  9. 809

    DESIGN AND THE ANALYSIS OF SIX-DEGREE-OF-FREEDOM ADJUSTING MECHANISM WITH HIGH ACCURACY AND STIFFNESS by HE Lei, HAN HasiaoQier, HAN ChunYang, HE Shuai, CHEN LiHeng

    Published 2019-01-01
    “…The analysis results showed that the SDOF precision adjusting mechanism fulfilled the design requirements, and the rationality for structure design of adjustment mechanism was verified.…”
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    Article
  10. 810

    Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage by FENG Hongchun, XU Chengjian, YUE Kedong, YANG Tong

    Published 2023-01-01
    “…The stress-strain constitutive relationship is an important research content of concrete materials.To reveal the mechanical damage law of recycled aggregate concrete under the effect of freeze-thaw cycles,this study builds a statistical model of mesoscopic damage to concrete on the basis of Weibull strength theory and compression experiment results of concrete.The results show that the damage to concrete under the uniaxial load is more significant under the action of the freeze-thaw cycle.As the number of freeze-thaw cycles increases from 0 to 120,the compressive strength and elastic modulus decrease exponentially,and the failure strain shows an upward trend.The Weibull strength theory is employed to construct the constitutive model of concrete damage considering the influences of freeze-thaw cycles,and by fitting,the shape parameter m and the scale parameter ε<sub>0</sub> are solved.In addition,the number of freeze-thaw cycles T is introduced to this model.The comparison of the measured stress-strain curve with the fitted results of the model verifies the rationality of the theoretical model.…”
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  11. 811

    Design and Optimization Analysis of a Through Shaft Inner Rotor Electric Bicycle Reducer Device by Xiong Junkai, Huang Xingyuan

    Published 2024-04-01
    “…The results show that the new design overcomes the defects of the left and right half shaft in the electric bicycle hub motor, the volume of the reducer is reduced by 8.6% after optimization, and the structural design strength and stiffness meet the requirements, which verifies the rationality of the structure, and provides a new idea and theoretical basis for the electric bicycle hub motor structure design and optimization.…”
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    Article
  12. 812

    Optimization Design of Multi Station Rotary Automatic Turning and Resetting Mechanism by Zhao Haiming, Zhang Linlin, Liao Xiaole

    Published 2016-01-01
    “…The optimization effect is obvious,and the rationality of the design parameter is verified by the simulation analysis.…”
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  13. 813

    Tripartite Evolutionary Game Model for Public Health Emergencies by Zhiqi Xu, Yukun Cheng, Shuangliang Yao

    Published 2021-01-01
    “…Based on the assumption of bounded rationality, we formulate a tripartite evolutionary game model, involving the local government, the enterprises, and the public, for the public health emergency, e.g., COVID-19. …”
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  14. 814

    Recognition of Failure Mode of Slope Block Failure Mode in Zhouning Pumped Storage Station Based on Stereographic Projection Method by KANG Zhiliang, ZHOU Shuntian, ZHU Yongsheng, CHU Weijiang, PAN Bing

    Published 2020-01-01
    “…The results show that the slope has the structural plane condition for block failure, and the plane slip and wedge instability are the main failure modes that may occur during the construction period. The rationality and feasibility of the stereographic projection method for predicting the failure mode of the slope are verified by the on-site failure performance of the rock mass during the construction period.…”
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  15. 815

    Parameter Matching and Optimization of Electric Vehicle Powertrain by Qinyu Niu, Zhenxi Li, Zhichao Wang, Haibo Tian

    Published 2019-02-01
    “…By establishing the simulation model in Cruise and the vehicle control strategy in MATLAB, the Cruise-MATLAB/Simulink co-simulation is realized, and the rationality of the model is verified. Nonlinear weighted particle swarm optimization (NWPSO) is used to decouple the parameters and realize the global optimization with the vehicle economy as the optimization objective and the coupling relationship among the parameters as the constraints. …”
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    Article
  16. 816

    Study and Design of Permanent Magnetic Levitation Roller of Belt Conveyor by Wu Huachun, Ren Yongwu, Yu Haitao, Shi Mengyao

    Published 2017-01-01
    “…By comparing with the finite element numerical method,the rationality of the permanent magnetic bearing designed by using equivalent magnetic charge method is verified. …”
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    Article
  17. 817

    Dimensional Synthesis Design of a Walking Aided Training Robot by Qin Tao

    Published 2018-01-01
    “…The simulation model of the mechanism is established by using the Matlab toolbox,and the rationality of dimensional synthesis optimization and the feasibility of robot mechanism design is verified by the results of simulation analysis.…”
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    Article
  18. 818

    Investigation on the Displacement Ductility Coefficient of Reinforced Concrete Columns Strengthened with Textile-Reinforced Concrete by Boxue Wang, Shiping Yin, Ming Liu

    Published 2021-01-01
    “…The results showed that the BP (backpropagation) neural network model had good rationality and accuracy and that the ductility coefficients of the strengthened columns calculated by the model agreed well with the experimental values. …”
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    Article
  19. 819

    Rodzice o dobrej publicznej szkole dla swoich dzieci. Fenomenograficzna ilustracja by Alicja Jurgiel-Aleksander

    Published 2021-09-01
    “…The author shows that in a cultural sense, the revealed categories of description show that it is difficult for us still to go beyond instrumental rationality in search of the meaning of a modern good public school and public good education. …”
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    Article
  20. 820

    3D channel modeling and space-time correlation analysis for V2V communications by Wenbo ZENG, Yigang HE, Bing LI, Guolong SHI, Feng ZHAO

    Published 2019-06-01
    “…To match complex wireless propagation scenarios,an improved 3D geometry-based stochastic model was proposed for vehicle to vehicle (V2V) communications channel.The exact relationship between the azimuth angle and elevation angle was taken into account and the corresponding space–time correlation function and space–Doppler power spectral density were derived,and the influence of important factors was analyzed.The observations and conclusions show that correlation characteristics is closely related to distribution of the scatterers and the angle of the antenna array under the non-isotropic scattering environment and is affected by the elevation angle of the antenna array under the isotropic scattering environment.And the space-time correlation characteristics in high vehicular traffic density is significantly lower than that in low vehicular traffic density.The corresponding simulation model is also derived by using a reasonable parameter calculation method.The simulation results validate the rationality of proposed model.It greatly improves analysis and simulation efficiency of V2V MIMO system.…”
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