Showing 861 - 880 results of 5,787 for search '"magnets"', query time: 0.07s Refine Results
  1. 861
  2. 862

    Inchworm Robots Utilizing Friction Changes in Magnetorheological Elastomer Footpads Under Magnetic Field Influence by Yun Xue, Chul-Hee Lee

    Published 2024-12-01
    “…On all tested surfaces, the friction force of the MRE foot was reduced significantly after applying a magnetic field. For example, on the PMMA surface, the friction force of the front leg dropped from 2.09 N to 1.90 N, and that of the hind leg decreased from 3.34 N to 1.75 N. …”
    Get full text
    Article
  3. 863

    Performance Improvements of a Permanent Magnet Synchronous Machine via Functional Model Predictive Control by Ahmed M. Kassem, A. A. Hassan

    Published 2012-01-01
    “…This paper investigates the application of the model predictive control (MPC) approach to control the speed of a permanent magnet synchronous motor (PMSM) drive system. The MPC is used to calculate the optimal control actions including system constraints. …”
    Get full text
    Article
  4. 864

    Feasibility Study of Stress Measurement in Prestressing Tendons Using Villari Effect and Induced Magnetic Field by Changbin Joh, Jung Woo Lee, Imjong Kwahk

    Published 2013-11-01
    “…This paper investigates experimentally the feasibility of estimating the stress in the prestressing tendons of prestressed concrete bridges using the magnetic field induced by an electromagnet and the Villari effect in which the magnetic susceptibility or permeability of a ferromagnetic material changes when subjected to a mechanical stress. …”
    Get full text
    Article
  5. 865

    Estimation of the Resistivity Index via Nuclear Magnetic Resonance Log Data Based on Fractal Theory by Cheng Feng, Chuang Han, Wenxing Duan, Wei Wang, Yuntao Zhong, Ziyan Feng, Ning Zhang

    Published 2020-01-01
    “…Firstly, a novel model of estimating the resistivity index with T2 time was derived based on fractal theory, the relationship between nuclear magnetic resonance (NMR) T2 spectrum and capillary pressure curve (T2-Pc), and Archie formula. …”
    Get full text
    Article
  6. 866

    Oxygen vacancy-driven spin-transfer torque across MgO magnetic tunnel junctions by L. M. Kandpal, B. Taudul, E. Monteblanco, A. Kumar, K. Katcko, F. Schleicher, P. Gupta, S. Boukari, W. Weber, V. Da Costa, J. D. Costa, T. Bӧhnert, R. Ferreira, P. Freitas, M. Hehn, M. Alouani, P. K. Muduli, D. Lacour, M. Bowen

    Published 2025-01-01
    “…Abstract Flowing an electrical current that is both of high areal density and large spin polarization across a magnetic tunnel junction (MTJ) can, through spin-transfer torque (STT), alter the relative magnetic orientation of the MTJ’s ferromagnetic electrodes. …”
    Get full text
    Article
  7. 867
  8. 868

    The Effect of Fe Doping on the Magnetic and Magnetocaloric Properties of Mn5−xFexGe3 by Jeffrey Brock, Nathanael Bell-Pactat, Hong Cai, Timothy Dennison, Tucker Fox, Brandon Free, Rami Mahyub, Austin Nar, Michael Saaranen, Tiago Schaeffer, Mahmud Khan

    Published 2017-01-01
    “…Although the small Fe doping had little effect on the ferromagnetic transition temperatures of the system, changes in the saturation magnetization and magnetic anisotropy were observed. …”
    Get full text
    Article
  9. 869

    Disseminated Intravascular Coagulopathy Caused by Uterine Leiomyoma with Sarcoma-Like Findings on Magnetic Resonance Imaging by Akiyo Taneichi, Hiroyuki Fujiwara, Yukako Mizoguchi, Shizuo Machida, Hiroaki Nonaka, Yuji Takei, Yasushi Saga, Mitsuaki Suzuki

    Published 2014-01-01
    “…A 36-year-old nulliparous woman presented with hypermenorrhea and a lower abdominal mass. On magnetic resonance imaging, we detected a 14 cm uterine tumor, which was suspected to be a sarcoma. …”
    Get full text
    Article
  10. 870
  11. 871
  12. 872
  13. 873

    Reconstruction of electron velocity distribution function and Gibbs entropy from electron cyclotron emission in magnetized plasmas by Kawamori Eiichirou

    Published 2025-01-01
    “…This formulation employs the maximum entropy method in velocity space using the Hankel transform, which converts from v _⊥ space to p space (where, v _⊥ and p are the electron velocity perpendicular to the background magnetic field and the index of the wavenumber in velocity space). …”
    Get full text
    Article
  14. 874

    CHANGE OF CONNECTION BETWEEN MAGNETIC PARAMETERS OF CAST IRON IN COMPARISON WITH STEEL UNDER INFLUENCE OF INTERNAL DEMAGNETIZATION by S. G. Sandomirsky

    Published 2014-11-01
    “…Connection of maximum magnetic permeability µm of cast irons with coercive force Нс and residual magnetism Мr is established in all size of changing of the magnetic characteristics of cast iron. …”
    Get full text
    Article
  15. 875
  16. 876

    Preliminary Interpretation of the Ground Magnetic Survey around Oguta Lake in Imo State, South Eastern Nigeria by FI Chinyem

    Published 2013-05-01
    “…Ground magnetic profiling was carried out around Oguta Lake in Imo State, Southeastern Nigeria. …”
    Get full text
    Article
  17. 877
  18. 878
  19. 879

    Magnetic resonance imaging radiomics based on artificial intelligence is helpful to evaluate the prognosis of single hepatocellular carcinoma by Jing Zhou, Daofeng Yang, Hao Tang

    Published 2025-01-01
    “…We collected the basic information of patients and used AI to extract the features of magnetic resonance (MR) images. Results: The clinical model based on linear regression (LR) algorithm (AUC: 0.658, 95%CI: 0.5021–0.8137), the radiomics model and deep transfer learning (DTL) model based on light gradient-boosting machine (Light GBM) algorithm (AUC: 0.761, 95%CI: 0.6326–0.8886 and AUC: 0.784, 95%CI: 0.6587–0.9087, respectively) were the optimal prediction models. …”
    Get full text
    Article
  20. 880