Showing 1,181 - 1,200 results of 1,540 for search '"electromagnetism"', query time: 0.07s Refine Results
  1. 1181

    DESIGN ANALYSIS OF A LOW-COST PARABOLIC ANTENNA FOR DEVELOPING NATION by FRANK ONAIFO, ALEXANDER AKPOFURE OKANDEJI, FISAYO IDOWU, OMOWUMMI GRACE OLASUNKANMI, OLAWALE OLALUWOYE, OLAOLU FOLORUNSHO

    Published 2020-01-01
    “…They are coated with a thin film of aluminum dust to enhance reflectivity since electromagnetic radiations do not travel deep in a conductor. …”
    Get full text
    Article
  2. 1182

    Partial Discharge Detection from Large Motor Stator Slots Using EFPI Sensors by Jinlong Wang, Weizhong Sun, Jun Zhou, Lei Wang, Lianfei Chen, Pengcheng Chen, Qichao Chen, Weichao Zhang

    Published 2025-01-01
    “…This study addresses the challenges of electromagnetic interference and unstable signal transmission encountered by traditional sensors in detecting partial discharge (PD) within stator slots of large motors. …”
    Get full text
    Article
  3. 1183

    Three-dimensional disordered alloy metamaterials: a new platform of structure-function integration by Xinxin Li, Liqiang Wang, Yang Lu

    Published 2025-01-01
    “…These materials are characterized by their unique including disordered atomic structures and alloy compositions modulation, enabling the manipulation of electromagnetic, thermal, and mechanical properties. We begin by discussing the underlying principles and synthesis methods of 3D disordered alloy metamaterials, followed by a comprehensive examination of their distinctive properties and potential applications in the realms of engineering, energy harvesting, and sensing. …”
    Get full text
    Article
  4. 1184

    Objective and Automated Quantification of Instrument Handling for Open Surgical Suturing Skill Assessment: A Simulation-Based Study by Simar P. Singh, Amir Mehdi Shayan, Jianxin Gao, Joseph Bible, Richard E. Groff, Ravikiran Singapogu

    Published 2024-01-01
    “…Instrument handling metrics were calculated from electromagnetic motion trackers affixed to the needle driver. …”
    Get full text
    Article
  5. 1185

    Noninteger Derivative Order Analysis on Plane Wave Reflection from Electro-Magneto-Thermo-Microstretch Medium with a Gravity Field within the Three-Phase Lag Model by S. H. Elhag, Fatimah S. Bayones, A. A. Kilany, S. M. Abo-Dahab, Emad A.-B. Abdel-Salam, M. Elsagheer, A. M. Abd-Alla

    Published 2022-01-01
    “…The main goal for this study is investigating the fractional order impact and the applications related to the orders, especially in biology, medicine, and bioinformatics, besides the integer order considering an external effect, such as electromagnetic, gravity, and phase lags in a microstretch medium. …”
    Get full text
    Article
  6. 1186

    Optimized Operator-Splitting Methods in Numerical Integration of Maxwell's Equations by Z. X. Huang, X. L. Wu, W. E. I. Sha, B. Wu

    Published 2012-01-01
    “…Optimized operator splitting methods for numerical integration of the time domain Maxwell's equations in computational electromagnetics (CEM) are proposed for the first time. …”
    Get full text
    Article
  7. 1187

    Vehicle-Mounted SRM DITC Strategy Based on Optimal Switching Angle TSF by Hongyao Wang, Jingbo Wu, Chengwei Xie, Zhijun Guo

    Published 2025-01-01
    “…However, the doubly salient pole structure and high-frequency switching power supply result in significant torque ripple and electromagnetic noise, which limit the application in the field of new energy vehicles. …”
    Get full text
    Article
  8. 1188

    Fractal analysis of geomagnetic data to decipher pre-earthquake processes in the Andaman–Nicobar region, India by R. Prajapati, K. Arora

    Published 2025-01-01
    “…<p>Seismo-electromagnetic (SEM) signatures recorded in geomagnetic data prior to an earthquake have the potential to reveal pre-earthquake processes in focal zones. …”
    Get full text
    Article
  9. 1189

    A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study by Hong-Bo Guo, Mo-Fei Wang, Ren-Qi Yin, Kang-Kang Zhi

    Published 2025-01-01
    “…The patency of anastomosed arteries was assessed using vascular Doppler ultrasound, electromagnetic flowmeter, and pathological examination (6 weeks after surgery). …”
    Get full text
    Article
  10. 1190

    The impact of E × B shear on microtearing based transport in spherical tokamaks by B.S. Patel, M.R. Hardman, D. Kennedy, M. Giacomin, D. Dickinson, C.M. Roach

    Published 2025-01-01
    “…Electromagnetic microtearing modes (MTMs) have been observed in many different spherical tokamak (ST) regimes. …”
    Get full text
    Article
  11. 1191

    Estimation of wireless channel fading model in maritime communication for complex meteorological environment by Yasheng DAI, Bolin MA, Guangxue YUE

    Published 2022-03-01
    “…Due to the influence of complex marine environmental factors such as sparse scattering of electromagnetic wave on the ocean surface, wave shadow fading, complex meteorological environment.It is extremely hard to model the fading of wireless channel in maritime communication environment.After analyzing the influence of meteorological environment and multipath channel fading via direct-path, specular-path and diffuse-path on marine wireless communication channel fading, the estimation of wireless channel fading model in maritime communication for complex meteorological environment (EWCFM-CME) was proposed.An improved bee colony algorithm was designed to estimation the parameter of EWCFM-CME.In order to improve the efficiency and accuracy of search algorithm, an iterative function with sin(·) function as operator was designed in search scheme of bee colonies.The leading bee received the detection bee solution to update itself with probability P.It prevents the solution algorithm from falling into local optimization.The simulation results show that, compared with fluctuate two-ray (FTR) fading model and round earth loss (REL) model, the mean absolute error (MAE) of EWCFM-CME increased by 13.58% and 11.43% By comparing EWCFM-CME with cuckoo search, genetic algorithm and simulated annealing algorithm, the search time is reduced by 60.48%, 45.18% and 43.23%, respectively.…”
    Get full text
    Article
  12. 1192

    Review of Energy Harvesters Utilizing Bridge Vibrations by Farid Ullah Khan, Iftikhar Ahmad

    Published 2016-01-01
    “…For utilization of bridge vibration, electromagnetic based vibration energy harvesters (EM-VEHs) and piezoelectric based vibration energy harvesters (PE-VEHs) have been developed. …”
    Get full text
    Article
  13. 1193

    Spectrum cognitive intelligent management and control for aviation 6G by Dong LIU, Qihui WU, Quek Tony Q.S.

    Published 2020-03-01
    “…With the development of the ground-air-space integrated information network,satellite networks and ground mobile networks serve as space and ground fundamental infrastructures,respectively.While various aerial platforms such as drones constitute air mobile networks to connect space and ground infrastructures.As an important form of 6G,aviation 6G will include new types of air-to-air,air-to-ground and air-to-space communication and networking techniques.An important issue for aviation 6G is how to efficiently use spectrum resources.Based on the challenges of aviation 6G and electromagnetic spectrum space,a spectrum cognitive intelligent management and control architecture for aviation 6G was proposed,and the functions were elaborated of the four main modules in the architecture,namely spectrum cloud,spectrum control link,device spectrum software defined and spectrum sensor network.Three key technologies of spectrum cognitive intelligent management and control for aviation 6G were analyzed and discussed,namely intelligent three-dimensional spectrum space digital twins,3D spectrum intelligent decision,and rapid collaborative learning of spectrum mapping.It is expected to provide guidance and suggestions for the subsequent research on aviation 6G and spectrum intelligent management and control.…”
    Get full text
    Article
  14. 1194

    Astronomical Signatures of Dark Matter by Paul Gorenstein, Wallace Tucker

    Published 2014-01-01
    “…The level of gravitational attraction needed for the spatial distribution of galaxies to evolve from the small perturbations implied by the very slightly anisotropic cosmic microwave background radiation to its current web-like configuration requires much more mass than is observed across the entire electromagnetic spectrum. Distorted shapes of galaxies and other features created by gravitational lensing in the images of many astronomical objects require an amount of dark matter consistent with other estimates. …”
    Get full text
    Article
  15. 1195

    An Improved Direct Torque Control with an Advanced Broken-Bar Fault Diagnosis for Induction Motor Drives by Oualid Aissa, Abderrahim Reffas, Hicham Talhaoui, Djamel Ziane, Abdelhakim Saim

    Published 2023-01-01
    “…More specifically, a fuzzy-based controller is used to simultaneously minimize the stator flux and the electromagnetic torque ripples. A neural switching table is then proposed to achieve the interface inverter control. …”
    Get full text
    Article
  16. 1196

    Measurement of the inclusive isolated-photon production cross section in pp collisions at $$\mathbf {\sqrt{\textit{s}}=13}$$ s = 13  TeV by ALICE Collaboration

    Published 2025-01-01
    “…The measurement is performed by combining the measurements of the electromagnetic calorimeter EMCal and the central tracking detectors ITS and TPC, covering a pseudorapidity range of $$|\eta ^{\gamma }|<0.67$$ | η γ | < 0.67 and a transverse momentum range of $$7<p_\textrm{T}^{\gamma } <200~$$ 7 < p T γ < 200 GeV/ $$c$$ c . …”
    Get full text
    Article
  17. 1197

    Solving linear Fredholm-Stieltjes integral equations of the second kind by using the generalized Simpson’s rule by A. Asanov, S. Yanık

    Published 2016-05-01
    “…As an example, most of the geophysical problems connected with electromagnetic and seismic wave propagation can only be solved approximately. …”
    Get full text
    Article
  18. 1198
  19. 1199
  20. 1200

    Rethinking military command and control systems by George-Ion TOROI

    Published 2025-01-01
    “…In particular, it emphasizes the importance of modularity and redundancy to ensure the operation of systems under conditions of intense conflict, as well as reducing electromagnetic vulnerability and increasing mobility. …”
    Get full text
    Article