Showing 1,441 - 1,460 results of 48,647 for search '"Mechanic"', query time: 0.11s Refine Results
  1. 1441

    Research on scenario-based mechanism in privacy-aware mobile networks by Ben NIU, Feng-hua LI, Jia-feng HUA, Yuan-yuan HE

    Published 2015-12-01
    “…The well-developed information services has infiltrated in each part of our daily life,various novel ser-vice modes and applications provide us conveniences at the cost of our privacy.This situation becomes more serious with the increasing number of applications and users’ requirements.The privacy issues of scenario-based mechanism in mobile networks have been studied based on analyzing the state-of-the-art research trends.The threat and chal-lenges of privacy disclosure caused by the mobile network services,and review the scenarios,service models and attack models were introduced firstly.Followed,a comprehensive study on current status of background information,quality of services,and resource-restricted related privacy preservation were made.Finally,some key technologies on privacy preservation such as background information modeling and descripting,multi-background information fusion,quality of services descripting and modeling,self-adaptive methods based on historical information,pri-vacy-preserving solutions optimizing energy resources and privacy-preserving schemes equalizing multiple factors etc were posted.…”
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  2. 1442
  3. 1443

    A Universal Calculation Method for Jacobian Matrix of Parallel Mechanism by Zhang Shuangshuang, Yang Hongtao

    Published 2015-01-01
    “…The Jacobian matrix is a key concept in mechanisms and profoundly reflect the nature of the mechanism,which provides us not only a kinematics mapping relations,it also sets a basis for mechanism analysis and synthesis in the future.A universal calculation method for Jacobian matrix of parallel mechanism is presented based on screw theory.Due to its style of construction,tedious steps in normal calculation method,including observation and derivation are nicely avoided,which makes this new method much more simplified.Meanwhile,since its modularization in style,this method also provides its advantages in computer aided programming.A limited-DOF parallel manipulator 3-RPS is used as an example to testify the superiority of this method,which also set a good foundation for further performance analysis and design.…”
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    Article
  4. 1444

    Research on Coal and Rock Type Recognition Based on Mechanical Vision by Qiang Zhang, Jieying Gu, Junming Liu

    Published 2021-01-01
    “…The identification method provides an effective method to improve the efficiency of coal separation, effectively determine the distribution of coal and rock, and timely adjust the cutting height of shearer drum and the operation parameters of various fully mechanized mining equipment, so as to improve the recovery rate of coal resources.…”
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  5. 1445

    Super-enhancers in hepatocellular carcinoma: regulatory mechanism and therapeutic targets by Xuejin Lu, Meizi Zhu, Xingyue Pei, Jinhu Ma, Rui Wang, Yi Wang, Shuwen Chen, Yan Yan, Yaling Zhu

    Published 2025-01-01
    “…Subsequently, we delve into the roles and molecular mechanisms of SEs within the framework of HCC. Finally, we discuss the inhibitors targeting the key SE-components and their potential effects on the treatment of HCC. …”
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  6. 1446

    Study on the Motion Law of Logarithmic Spiral Type Cam Mechanism by Yin Libin, Fu Lihua, Zhao Yan, Song Hua, Gao Jingjun

    Published 2015-01-01
    “…The solid models of the logarithmic spiral cam mechanism and common cam mechanism are established by using SolidWorks,and the kinematics simulation is carried out.Then,by using the software of ANSYS / LS-DYNA,the dynamics analysis of the two kinds of cam mechanism is carried out,and the variation situation of the maximum stress of cam mechanism and the follower changing with time is obtained.By contrast analysis between the dynamics simulation and the kinematical simulation of logarithmic spiral cam mechanism and common cam mechanism,find that the logarithmic spiral cam mechanism drive is more steady during the operation,and the force variation and the average stress of cam and follower are lower,which indicates that the logarithmic spiral cam mechanism is superior to common cam mechanism,and possessed of popularization and application value.…”
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  7. 1447
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  9. 1449

    Safety behaviors and degradation mechanisms of aged batteries: A review by Shuguo Sun, Jun Xu

    Published 2024-12-01
    “…Over the past decade, despite considerable research into the thermal hazards of aged batteries, the complexity of battery aging and TR mechanisms, along with the challenges posed by extreme experimental conditions, necessitates a systematic understanding. …”
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    Article
  10. 1450

    Mechanism of Action of Icariin in Bone Marrow Mesenchymal Stem Cells by Aofei Yang, Chaochao Yu, Qilin Lu, Hao Li, Zhanghua Li, Chengjian He

    Published 2019-01-01
    “…However, the underlying mechanism of ICA action in BMSCs is not completely clear. …”
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  11. 1451
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  13. 1453

    Mechanical Impedance Matching Using a Magnetic Linear Gear by Ignacio Valiente-Blanco, Cristian Cristache, Juan Sanchez-Garcia-Casarrubios, Fernando Rodriguez-Celis, Jose-Luis Perez-Diaz

    Published 2017-01-01
    “…The behavior of the real Z-transmitter as a mechanical impedance matching device when any stiffness is attached to the fast stage including the limit cases of a blocked fast stage or a free to move fast stage is experimentally explored. …”
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  14. 1454

    Drug inhibition and substrate transport mechanisms of human VMAT2 by Feiwen Wei, Huihui Liu, Wei Zhang, Jufang Wang, Yanqing Zhang

    Published 2025-01-01
    “…Utilizing cryo-electron microscopy (cryo-EM), mutagenesis functional assays, and molecular dynamics (MD) simulations, we elucidate the mechanisms of substrate transport and drug inhibition. …”
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  15. 1455

    Current understanding of antimicrobial resistance mechanisms in bacteria (analytical review) by O. V. Pruntova, V. S. Russaleyev, N. B. Shadrova

    Published 2022-03-01
    “…Data on mechanisms of resistance to antimicrobials in bacteria are reviewed and summarized. …”
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  16. 1456

    Genetic mechanisms of the influence of light and phototransduction on Drosophila melanogaster lifespan by I. A. Solovev, M. V. Shaposhnikov, A. A. Moskalev

    Published 2018-11-01
    “…A relationship between the mechanisms of thermoreception, the temperature synchronization of the circadian oscillator and the life span is established in the review. …”
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  17. 1457

    Preliminary Exploration of the Topological Structure of the Crank- Group Driving Mechanism by Wang Yuqi, Cao Jujiang

    Published 2015-01-01
    “…The crank- group driving mechanism is a kind of underactuated mechanism with redundant characteristics. …”
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  18. 1458
  19. 1459

    Study on the Meshing Mechanism of Hy-Vo Silent Chain System by Cheng Yabing, Wang Xiaopeng, Liu Huan

    Published 2016-01-01
    Subjects: “…Meshing mechanism…”
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  20. 1460

    Conditional privacy-protection remote user authentication mechanism for WBAN by Jin CAO, Yi-qing ZHENG, Hui LI

    Published 2016-10-01
    “…A conditional privacy-protection remote user authentication scheme based on a certificateless group signature was proposed,which can accomplish the anonymous mutual authentication between the user and the remote doctors.In addition,when the doctors perceived that users were in case of an emergency,the mechanism enabled the only group manager (GM) to expose the real identity information of users and given users timely assistance.The scheme can provide the anonymity,traceability,mutual authentication,non-reputation and some other security features.The performance analysis results show the scheme is more suitable for WBAN.…”
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