Showing 24,861 - 24,880 results of 24,968 for search '"electromagnetism"', query time: 0.20s Refine Results
  1. 24861

    Mortalidade por câncer em trabalhadores de companhia geradora de eletricidade do Estado de São Paulo, Brasil Cancer mortality among electricity utility workers in a Southeastern re... by Inês E. Mattos, Sérgio Koifman

    Published 1996-12-01
    “…<br>A number of epidemiologic studies have observed an association between exposure to 50-60 Hz electromagnetic fields and the development of specific types of cancer. …”
    Get full text
    Article
  2. 24862
  3. 24863
  4. 24864
  5. 24865
  6. 24866
  7. 24867
  8. 24868

    Integrated design of DC-DC power converters target for fast load transient applications by Jia, Meng

    Published 2019
    “…Compared to conventional hysteretic PFM controls, the proposed designs have a fixed switching frequency, so the electromagnetic interference (EMI) problems can be greatly reduced and the challenges on input filter design can be minimized. …”
    Get full text
    Get full text
    Thesis
  9. 24869

    CMOS-integrated biosensor circuits and systems : FMCW radar sensor for noncontact multimodal vital signs monitoring and coherent photoacoustic sensor for non-invasive in vivo sensi... by Fang, Zhongyuan

    Published 2021
    “…The CMOS-integrated radar sensor is a suitable candidate to monitor multimodal vital signs and detect specific movements like falling in a noncontact way utilizing electromagnetic (EM) waves. To further enable multimodal biomedical sensing for pervasive healthcare applications, considering that photoacoustic sensor is realized based on light excitation and acoustic sensing, which can be used to achieve the non-invasive monitoring on the in-depth blood core temperature and in vivo imaging on the target tissues. …”
    Get full text
    Thesis-Doctor of Philosophy
  10. 24870

    Spatiotemporal light shaping using silicon photonics for 6G communications by Tan, Yi Ji

    Published 2023
    “…The deep learning beamforming model, the broadband topological waveguide designs, and the free-electron radiation intensity shaping techniques presented in this thesis extends beyond the THz regime and are scalable across the entire electromagnetic spectrum. The CMOS process compatibility of silicon metasurfaces, silicon planar waveguides, along with silicon electron emitters and silicon gratings offers the opportunity to realize a broadband THz photonic integrated circuit with waveguiding, wave generation and beamforming functionalities for enhancing the spectral efficiency of THz communications in 6G wireless networks.…”
    Get full text
    Thesis-Doctor of Philosophy
  11. 24871

    Interfacial colloidal self-assembly for functional materials by Hou, Shuai, Bai, Ling, Lu, Derong, Duan, Hongwei

    Published 2023
    “…Strong Raman enhancement was accomplished by rationally directing the Raman probes to the electromagnetic hotspots. Optimal enhancement of fluorescence and FRET was realized by precisely controlling the spacing between the metal surface and the fluorophores and tuning the surface plasmon resonance wavelength of the self-assembled substrate to match the optical properties of the fluorescent dye. …”
    Get full text
    Journal Article
  12. 24872

    Exploring ultrafast terahertz dynamics for efficient transmission and emission applications by Ali Abdelaziem Abdelgaied Abdelrahman

    Published 2024
    “…The THz frequency range, which extends from 0.1-30 THz, provides a unique window into the properties of various materials and their interactions with electromagnetic radiation. THz spectroscopy is gaining popularity in various fields, including material science, biology, chemistry, and physics, due to its non-invasive nature that enables the examination of the intrinsic properties of materials, including their structural, vibrational, and electronic states. …”
    Get full text
    Thesis-Doctor of Philosophy
  13. 24873

    Uncooled infrared detection based on aluminium nitride piezoelectric resonator by Ang, Wan Chia

    Published 2015
    “…Infrared (IR) radiation is an electromagnetic radiation with wavelength ranging from 0.75 µm to 1,000 µm and photon energy from 1.24 meV to 1.7 eV. …”
    Get full text
    Thesis
  14. 24874

    Performance optimization for cognitive radio networks with RF energy harvesting capability by Dinh, Thai Hoang

    Published 2016
    “…Such techniques allow a wireless node to harvest and convert electromagnetic waves from ambient RF sources (e.g., TV, radio towers and cellular base stations) into energy which can be used for data transmissions. …”
    Get full text
    Thesis
  15. 24875

    Multilevel diode clamped converter with space vector modulation and DC-link capacitor voltage balancing by Harikrishna Raj, Pinkymol

    Published 2016
    “…The output voltage waveform of multilevel inverter consists of multiple steppes of smaller magnitudes designed to reduce electromagnetic interference (EMI) commonly produced by rapid switching that generate lesser common mode currents at motor shaft and bearings due to reduced dv dt . …”
    Get full text
    Thesis
  16. 24876

    Carrier based pulse width modulated two-level and three-level Z-source inverters for distributed energy resources by Sheik Fareed Muhammad Musthafa Roomi

    Published 2016
    “…Medium/high power applications are trending towards incorporating multilevel inverters due to a better output waveform quality and low electromagnetic interference (EMI) while employing devices of smaller voltage rating. …”
    Get full text
    Thesis
  17. 24877

    Analysis and design of an adaptive-supply class H audio power amplifier for mobile devices by Zhang, Xiang

    Published 2017
    “…More importantly, the switching noise generated at the output stage will cause electromagnetic interference (EMI) problems which may affect the performance of other Radio Frequency (RF) blocks. …”
    Get full text
    Thesis
  18. 24878

    Piezoelectric energy harvesting interface circuits for energy autonomous sensors by Koottungal Paramba, Arish Shareef

    Published 2017
    “…Vibrational energy is often harvested using three methods viz. Electromagnetic, Electrostatic and Piezoelectric, the latter being the focus of this thesis. …”
    Get full text
    Thesis-Doctor of Philosophy
  19. 24879

    Development of chitosan based optical fiber chemical sensors by Ravikumar, Raghunandhan

    Published 2018
    “…Particular emphasis on research has been focused on in-line fiber optic interferometric sensors owing to their many advantages like compact size, high sensitivity, immunity to electromagnetic interference etc. Among the polymers used in sensing applications, chitosan a natural biopolymer, has attracted a significant amount of interest. …”
    Get full text
    Thesis
  20. 24880

    Multicore fibers for sensing applications by Zhang, Hailiang

    Published 2018
    “…Due to the intrinsic advantages such as small size, well-defined core separation, improved isothermal behaviour, light weight, immunity to electromagnetic interference, MCFs have also attracted extensive interests for optical sensing applications. …”
    Get full text
    Get full text
    Thesis