Mostrando 621 - 640 Resultados de 842 Para Buscar '"Electromagnetic spectrum', tiempo de consulta: 0.14s Limitar resultados
  1. 621
    “…This work in the aggregate has made RF energy one of the best studied potential technological hazards and represents a productive response by large numbers of scientists and engineers, working in many countries and supported by diverse funding agencies, to the ever rapidly evolving uses of the electromagnetic spectrum. This review comments on present needs of the field, which include raising the quality of dosimetry in many RF bioeffects studies and developing improved exposure/dosimetric techniques for the higher microwave frequencies to be used by forthcoming communications technologies. …”
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  2. 622
    “…We investigate three cases of metamaterials presented in the literature displaying refractive index with one or more discontinuities along the frequency spectrum. We reproduce the numerical simulations of these metamaterials and compare our simulations to each reported case. …”
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  3. 623
    “…Respiration rate is an essential vital sign that requires monitoring under various conditions, including in strong electromagnetic environments such as in magnetic resonance imaging systems. …”
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  4. 624
    “…Additionally, the excitation and emission wavelength of MGCI was successfully shifted closer to the visible region of the electromagnetic spectrum by introducing a methoxy-group into the core structure, which makes them interesting for biological applications.…”
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  5. 625
    “…Hyperspectral technology can capture hundreds of narrow bands of the electromagnetic spectrum both within and outside the visible wavelength range as well as bands that enhance the distinction of image features. …”
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  6. 626
    “…Finite element method simulations are utilized to investigate the physical natures, such as the absorptance spectrum, magnetic flux and surface charge densities, electric field intensity, and electromagnetic power loss density. …”
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  7. 627
    “…The goal of this research is to find a way to charge electronic devices wirelessly using radio frequency (RF) electromagnetic (EM) waves (Rectenna using energy detection-based spectrum sensing). …”
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  8. 628
    por De Vries, Bart
    Publicado 2014
    “…These properties, combined with the fact that its band gap can be adjusted by alloying it with InN and AlN, make GaN a suitable material for the fabrication of optical components that operate in the blue to ultraviolet region of the electromagnetic spectrum, and for microwave and high-power applications. …”
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  9. 629
    por Zhang, P
    Publicado 2012
    “…Higher order modes (HOM) are electromagnetic resonant fields. They can be excited by an electron beam entering an accelerating cavity, and constitute a component of the wakefield. …”
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    info:eu-repo/semantics/article
  10. 630
    “…MATERIALS AND METHOD: A wide range of sequences including T1 weighted [T1] volumetric interpolate breath-hold exam [VIBE], T2 weighted [T2] double-echo steady state [DESS], susceptibility weighted imaging [SWI], time-of-flight [TOF], diffusion tensor imaging [DTI], and diffusion spectrum imaging [DSI] were optimized and incorporated with a radiofrequency [RF] coil system composed of a transverse electromagnetic [TEM] transmit coil combined with an 8-channel receive-only array for 7T upper extremity [UE] imaging. …”
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  11. 631
    “…BACKGROUND: The design of new polymers able to filter the electromagnetic spectrum and absorb distinctly in the UV and high-energy part of visible spectrum is crucial for the development of semi-transparent solar cells. …”
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  12. 632
    “…This single-pixel all-optical object classification system through random diffusers is based on passive diffractive layers that process broadband input light and can operate at any part of the electromagnetic spectrum by simply scaling the diffractive features proportional to the wavelength range of interest. …”
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  13. 633
    por Manea, Vladimir
    Publicado 2015
    “…Complementing the information obtained from the low-lying excitation spectrum, nuclear binding energies and mean-square charge radii are among the observables most sensitive to these changes of nuclear structure. …”
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  14. 634
  15. 635
    por Frampton, Paul H, Kim, Jihn E
    Publicado 2020
    “…Most of this progress has happened in the last seventy years after the theory of quantum electrodynamics (QED) was perfected as an extremely accurate description of electromagnetic interactions. This astonishing sequence of discoveries was made hand in hand between theory and experiment. …”
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  16. 636
    por Spencer, John
    Publicado 2022
    “…By clustering these showers and reconstructing their energies, the muon energy spectrum can be validated, as well as the procedure for reconstructing $\nu_e$ energy in FASER$\nu$. …”
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  17. 637
    por Stefanidis, Efstathios
    Publicado 2007
    “…The method is ba sed on the information from the Electromagnetic Calorimeter and it will be demonstrated th at the reduced size can improve the performance of the Level-2 Trigger in terms of execution time (58% faster) but also for track reconstruction (6% more efficient) in the Inner Detecto r, especially during the high luminosity phase of the LHC…”
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  18. 638
    “…Highly sensitive detection of enhanced terahertz (THz) fingerprint absorption spectrum of trace-amount tiny molecules is essential for biosensing. …”
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  19. 639
    “…Both COFs exhibit good electrical conductivities, show promising optical absorption features, are redox-active, and exhibit a strong electrochromic behavior when applying an external electrical stimulus, shifting the optical absorption even farther into the NIR region of the electromagnetic spectrum and achieving absorbance changes of up to 2.5 OD. …”
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  20. 640
    “…Digital programmable coding metasurfaces (DPCMs) have recently attracted enormous attention and have been broadly applied, owing to their ability to manipulate electromagnetic (EM) wave behaviours and programmable multi-functionality. …”
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