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Mostrando 581 - 600 Resultados de 789 Para Buscar '"S.D.B."', tiempo de consulta: 0.27s Limitar resultados
  1. 581
    Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications
    “... in this paper has about 10 dB lower sidelobe energy than the random selection method. Besides...”
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  2. 582
    3D-Printed Graphene-Based Bow-Tie Microstrip Antenna Design and Analysis for Ultra-Wideband Applications
    por Emine Avşar Aydın
    Publicado 2021
    “... to 20 GHz for ultra-wideband applications. The obtained return loss of −10 dB throughout the applied...”
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  3. 583
    Basic study on active acoustic shielding (Improving noise-reducing performance in low-frequency range)
    “.... It was found that the new AAS window reduced noise by 5 to 15 dB in the frequency range from 300 Hz to 2 kHz...”
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  4. 584
    Ionospheric Clutter Suppression with an Auxiliary Crossed-Loop Antenna in a High-Frequency Radar for Sea Surface Remote Sensing
    por Shuqin He, Hao Zhou, Yingwei Tian, Wei Shen
    Publicado 2021
    “... to 20 dB. Therefore, the Bragg peaks that were originally submerged by the ionospheric clutters could...”
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  5. 585
    Photodetector Based on CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composite Nanocrystals with High Detectivity
    “... dynamic range (LDR) of 115 dB under 1 V bias was also realized. Furthermore, the underlying mechanism...”
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  6. 586
    Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection
    por Hyunmin Jeong, Sangkil Kim
    Publicado 2021
    “... mixer, a 3-dB power divider, a low-noise amplifier, and two cylindrical horn antennas (Tx/Rx antennas...”
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  7. 587
    MXene-coated multi-response conductive film based on layer-by-layer assembly strategy for electromagnetic interference shielding
    “... effectiveness (EMI SE) of 37.71 dB. Surprisingly, the composite film also exhibits good waterproof performance...”
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  8. 588
    Three-Dimensional Magnetic Induction Tomography: Practical Implementation for Imaging throughout the Depth of a Low Conductive and Voluminous Body
    por Martin Klein, Daniel Erni, Dirk Rueter
    Publicado 2021
    “... sensitivity (>20 dB) from the interior. On this basis, a large and fast 3D MIT scanner was practically...”
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  9. 589
    High SNR Φ-OTDR with Multi-Transverse Modes Heterodyne Matched-Filtering Technology
    “... that the noise floor is reduced by 11.4 dB, while the target signal is kept. We believe that this proposed method...”
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  10. 590
    An Alternative Statistical Characterization of TWDP Fading Model
    “... ASEP, which is shown to be applicable for SNR > 20 dB. All proposed expressions are verified by Monte...”
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  11. 591
    Multifunctional Electrically Conductive Copper Electroplated Fabrics Sensitizes by In-Situ Deposition of Copper and Silver Nanoparticles
    “... resistivity of 67 Ω, EMI shielding of 66 dB and Ohmic heating of 118 °C at 10 V was observed. It was found...”
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  12. 592
    Three New Phthalide Glycosides from the Rhizomes of <i>Cnidium officinale</i> and Their Recovery Effect on Damaged Otic Hair Cells in Zebrafish
    “... led to the isolation of three new phthalide glycosides, named ligusticosides C (<b>1</b>), D (<b>2</b...”
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  13. 593
    Vibração e ruído emitidos por dois tratores agrícolas
    “... os dois tratores apresentaram níveis de ruído acima do limite de 85 dB (A) para 8 horas de exposição...”
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  14. 594
    Path Loss Prediction Model Development in a Mountainous Forest Environment
    “... of 8.05 dB on the experimental data....”
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  15. 595
    Super-light Cu@Ni nanowires/graphene oxide composites for significantly enhanced microwave absorption performance
    “..., and the minimum reflection loss reached −42.8 dB at 16.9 GHz with a thickness of 2.1 mm. The enhanced MA...”
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  16. 596
    Integrated multi-port circulators for unidirectional optical information transport
    “... provided 23 dB isolation when used under pulsed-mode conditions at milliwatt (mW) power levels....”
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  17. 597
    Si-rich Silicon Nitride for Nonlinear Signal Processing Applications
    “... is presented, enabling us to demonstrate TPA-free CMOS-compatible waveguides with low linear loss (~1.5 dB/cm...”
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  18. 598
    High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference
    “... ratio in excess of 30 dB are synthesized. Through the concept of vector addition of RF signals we...”
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  19. 599
    Visual field examination method using virtual reality glasses compared with the Humphrey perimeter
    “..., and software that implements a fast-threshold 3 dB step staircase algorithm for the central 24&deg; of visual...”
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  20. 600
    Improved prediction error expansion and mirroring embedded samples for enhancing reversible audio data hiding
    por Yoga Samudra, Tohari Ahmad
    Publicado 2021
    “... more than 100 dB, which is higher than that of the compared algorithms. Additionally, this proposed...”
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