Showing 20,281 - 20,300 results of 22,513 for search '"Mathematics"', query time: 0.10s Refine Results
  1. 20281

    The global financial crisis, neoclassical economics, and the neoliberal years of capitalism by Luiz Carlos Bresser-Pereira

    Published 2010-06-01
    “…Neoclassical economics played the role of a meta-ideology as it legitimized, mathematically and “scientifically”, neoliberal ideology and deregulation. …”
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  2. 20282

    Effect of Surface Roughness on Characteristics of Textured Hydrodynamic Bearings by Hongtao Wang, Shaolin Zhang, Shuai Yang

    Published 2022-08-01
    “…For a radial hydrodynamic bearing with surface micro texture,the Gauss random rough surface is used to simulate the surface roughness of the bearing bush. A mathematical model of bearing oil film characteristics is established under the coupling of surface micro texture and roughness. …”
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  3. 20283

    Presentation of Machine Learning Approaches for Predicting the Severity of Accidents to Propose the Safety Solutions on Rural Roads by Mohammad Habibzadeh, Mahmoud Ameri, Hassan Ziari, Neda Kamboozia, Seyede Mojde Sadat Haghighi

    Published 2022-01-01
    “…Finally, the performances of ANN models were analyzed by other mathematical models built by MATLAB programming.…”
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  4. 20284

    On an analog of the M.G. Krein theorem for measurable operators by A.M. Bikchentaev

    Published 2018-06-01
    “…In: Translations of Mathematical Monographs. Vol. 18. Providence, R.I., Amer. …”
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  5. 20285

    Modelling of Spacecraft Dynamics at Deployment of Large Elastic Structure by V. S. Khoroshilov, A. E. Zakrzhevskii

    Published 2012-01-01
    “…The objective of the study is the creation of the generalized mathematical model and the conducting of the computational modelling of the spacecraft dynamics. …”
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  6. 20286

    Up-to-date methods of stomach functions investigation and their diagnostic potentials by Ya. S. Tsimmerman

    Published 2011-09-01
    “…Diagnostic descriptive value of methods of electrogastrography and methods of mathematical analysis of electrogastrograms developed by the author, and potential of radionuclide methods are reviewed. …”
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  7. 20287

    Nonlinear and Robust Control Strategy Based on Chemotherapy to Minimize the HIV Concentration in Blood Plasma by Ricardo Aguilar-López, Rigel Valentín Gómez-Acata, Gerardo Lara-Cisneros, Ricardo Femat

    Published 2016-01-01
    “…For control design it is considered a simplified mathematical model of the virus infection as a benchmark. …”
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  8. 20288

    Finite Element Analysis of Dynamic Meshing Characteristic of Skew Bevel Gear with Equivocal Modification by Xiaoping Ran, Liyao Gu, Jianfan Wang

    Published 2022-05-01
    “…On the basis of the principal of gear generating machining method,the gear flank mathematical model and gear tooth flank contact line equation of skew bevel gears with equivocal modification are derived,the contact finite element dynamic analysis model with seven teeth is built,the position of edge contact in a meshing period,as well as the variation curves of contact stress and bending stress under different loads are obtained. …”
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  9. 20289

    Sensitivity-enhancing feedback control–based damage detection in delaminated smart composite plates by Yan Guo, Yanan Jiang, Zhenghua Qian, Bin Huang

    Published 2019-07-01
    “…We first introduce the adopted improved layerwise theory–based mathematical model for delamination modeling with finite element implementation. …”
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  10. 20290

    Study on Engagement Performance of Engagement Sleeve and Engagement Gear Ring of Without Synchronizer Transmission by Cui Wenxia, Zhang Ruiliang, Zhang Bo

    Published 2019-01-01
    “…The engagement process is divided into four stages: free sliding stage, tooth tip collision stage, tooth tip friction stage and inter-tooth meshing stage, a mathematical model is established. The dynamics model of the engagement process is established by Adams. …”
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  11. 20291

    An Error Tolerated Congestion Control Algorithm Based on Packet Loss Rate Measurement in Deep Space Communication Network by Junrong Yan, Yulong Lu, Peng Pan

    Published 2015-11-01
    “…Congestion control algorithms of TCP protocol previously used in space communications are mostly based on TCP Vegas algorithm.They always require accurately measurement of RTT,but it's very difficult to achieve in deep space communication networks which have very long and variable delay channel characteristics.An errors tolerated congestion control algorithm is proposed based on packet loss rate measurement.The algorithm sends data in the form of data blocks and gives an errors tolerated degree based on the history data.It measures the congestion state based on the current packet loss rate measurement,so it can achieve a smaller overhead and higher transmission efficiency.In addition,the usage of mathematical modeling methods simplifies the networks and simulates the real network traffic.The mentioned algorithm is compared with the classical congestion control algorithm.Analysis and simulation prove that thethroughput of improved algorithm is 34 percent better than Tahoe and 22 percent better than Reno,so it gets a better performance.…”
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  12. 20292

    Research on the Coordination Mechanism of Value Cocreation of Innovation Ecosystems: Evidence from a Chinese Artificial Intelligence Enterprise by Yu Chen, Yantai Chen, Yanlin Guo, Yanfei Xu

    Published 2021-01-01
    “…The factors influencing value cocreation are found through mathematical analysis. Taking iFLYTEK as an example, a representative enterprise of artificial intelligence (AI) in China, six factors affecting value cocreation are verified, which are the excess return rate, the distribution coefficient of the excess return rate, coordination costs in the system, the cost-sharing coefficient, imitation costs, and penalties. …”
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  13. 20293

    Low-Complexity User Selection for Rate Maximization in MIMO Broadcast Channels with Downlink Beamforming by Eduardo Castañeda, Adão Silva, Ramiro Samano-Robles, Atílio Gameiro

    Published 2014-01-01
    “…Based on the derived metrics we present a mathematical model that describes the dynamics of the user selection process which renders the user selection problem into an integer linear program. …”
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  14. 20294

    On-Orbit Thermal Design and Validation of 1 U Standardized CubeSat of STEP Cube Lab by Soo-Jin Kang, Hyun-Ung Oh

    Published 2016-01-01
    “…Finally, the orbital temperature of each component was predicted using a highly reliable correlated thermal mathematical model of the CubeSat obtained from the thermal balance test.…”
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  15. 20295

    Multi-objective Reliability Optimization of NGW Type Reducer of the Road-rail Vehicle by Wen Junhu, Zheng Wei, Hao Shuai

    Published 2017-01-01
    “…Aiming at the problem of multi-objective reliability optimization for the reducer of road-rail vehicle,firstly,it must be ensured that the electric wheel planetary gear reducer is in good working order and loading conditions meet the requirements of transmission.By applying the reliability theory and optimization design technology,the reducer weight reduction,materials saving,low cost can be realized safety and reliability is improved.The MATLAB optimization toolbox is used to solve the problem of the optimization of reducer.Taking the volume and contact ratio as multi-objective optimization function,then the multi-objective optimization problem is transformed into single-objective problem to solve by the linear weighted method.The mathematical model is established by using the safety factor method and other constraints.By using Fmincon function,the optimizing calculation and analysis are carried out,the optimal solution is got,which makes the optimization design parameters more reasonable than the original design parameters.Consequently,the results show that the working performance of the electric wheel of the road-rail vehicle is improved.…”
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  16. 20296

    Analysis of the Isothermal Elastohydronamic Lubrication of Inclined Double-roller Enveloping Hourglass Worm Drive by Li Jinkuan, Liu Zaixin, Zhang Cui, Zhu Yan

    Published 2017-01-01
    “…To improve the lubrication performance,antiscuffing capacity and efficiency of worm gear pairs drive,the isothermal elastohydrodynamic lubrication( EHL) simplified model and isothermal line contact mathematical model are established based on meshing theory of inclined double-roller enveloping hourglass worm drive and the theory of EHL. …”
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  17. 20297

    Superconducting quantum computing optimization based on multi-objective deep reinforcement learning by Yangting Liu

    Published 2025-01-01
    “…Based on this, we improved a multi-objective deep reinforcement learning method in mathematical convex optimization theory for multi-process quantum optimal control optimization. …”
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  18. 20298

    STUDY ON WEAR RELIABILITY OF SYNCHRONIZER SLIDERS OF THE TRACKED VEHICLE by AN Hai, ZHOU Ling, YAN ZhaoYi, SUN Peng

    Published 2018-01-01
    “…Firstly,Partial Least Squares( PLS) Algorithm is used to process the test data and fit the mathematical expression between the wear rate and the influencing factors. …”
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  19. 20299

    Design and Control Method of Switchable On- or Off-Ramp for Urban Highway by Yugang Liu, Hongbo Yi, Jiali Li, Bin Chen, Hongtai Yang

    Published 2020-01-01
    “…The traffic flow data in peak hours is collected and used. Mathematical analysis proves that the SR system proposed in this paper can reduce the total travel time (TTT) in the studied area. …”
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  20. 20300

    AI based scheme on voice service quality evaluation and assurance by Guangyu LI, Yanping LIANG, Li YU, Kun WANG, Yangming CHEN, Sijia LIU

    Published 2021-05-01
    “…The voice service is one of the mainstream services under the telecommunications network.The mainstream voice service quality evaluation method in the industry is to compare the voice and audio of the transceiver and calculate the POLQA MOS, which is the standard benchmark for voice quality analysis.For telecom operators, perceive voice service quality efficiently without any infringement of user privacy, and carry out precise service quality assurance, is one of the key tasks.A system using mathematical statistics and neural network to learn the mapping between voice service feature data from network side and voice quality from user side to generate evaluation model with high accuracy and precision was proposed.On this basis, the system made use of data information from multiple fields including wireless network user level and cell level, to analyze reasons and work out solutions for poor service quality, so as to assure service quality efficiently and accurately.The result shows that the scheme has achieved good practical application results.…”
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