Results 101 to 110 of about 442,005 (317)
Investigation of microwave antennas in lossy media for medical applications [PDF]
For several years, microwave engineers have dreamed of using non-ionising electromagnetic waves in medical imaging applications. The rate of evolution of microwave techniques for medical application has been immense and shows no signs of relenting. Since
Fdo, Michael J.
core
Weak target detection technology of passive radar on the navigation satellite signal
The Journal of Engineering, 2019 The passive radar detection system receives secondary reflection signal by the navigation satellite signal. The secondary reflection signal is too weak to detect the target.
Xiaoyan Fan +4 more
doaj +1 more source
Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects
Advanced Materials, EarlyView.Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley +1 more source
Distortion mechanisms in varactor diode-tuned microwave filters [PDF]
, 2006 This paper examines the broadband distortion behavior in flexible filters employing varactor-diode tuning elements. Series- and parallel-resonant varactor-loaded transmission-lines, both commonly used in bandpass and bandstop microwave filters, are ...
Carey-Smith, BE, Warr, PA
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingFully polarimetric array InSAR (Pol-array-InSAR) can obtain 3-D position information and the polarization scattering characteristics of targets. In this article, we propose a polarization analysis-based processing framework for the synthetic aperture ...
Shujie Song +6 more
doaj +1 more source
IEEE Photonics Journal, 2014 The high accuracy of lasing wavelength spacing is one of the key requirements of a distributed feedback (DFB) semiconductor laser array. However, the nonuniformity of the wavelength spacing is increasingly deteriorating with the increase in the channel ...
Yuechun Shi +5 more
doaj +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Research activities on computer-aided modeling, design and optimization of RF and microwave circuits at ITESO Mexico [PDF]
, 2014 ITESO (Instituto Tecnológico y de Estudios Superiores de Occidente) is a private Jesuit university in Guadalajara, Jalisco, Mexico. The Department of Electronics, Systems and Informatics at ITESO is the host of the Research Group on Computer-Aided ...
Brito-Brito, Zabdiel +1 more
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Coherent Radar Networks: Terminology, Synchronization, and Applications
IEEE Journal of MicrowavesIn coherent radar networks, multiple radar sensors not only operate cooperatively but also facilitate coherent evaluation of signals from other spacially distant radar units.
David Werbunat +7 more
doaj +1 more source
Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency
Advanced Materials, EarlyView.This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally +2 more
wiley +1 more source