Results 81 to 90 of about 1,738,073 (376)
Influence of Channel Count and Array Sparsity on the Detection Performance of 4D Imaging Radars
IEEE Journal of MicrowavesSeparability, detection capability, and height estimation performance are key measures of high performance 4D imaging radars. While many different sensors have been presented in recent years, no sensor-independent comparison of the performance achievable
Dominik Schwarz +4 more
doaj +1 more source
A fiber based diamond RF B-field sensor and characterization of a small helical antenna
, 2018 We present a microwave B-field scanning imaging technique using diamond micro-crystal containing nitrogen vacancy center that is attached to a fiber tip. We propose a pulsed modulation technique, enabling the implementation of a variety of pulsed quantum
Dong, M. M. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri +6 more
wiley +1 more source
Journal of Lightwave Technology, 2020 As the only method for all-weather, all-time and long-distance target detection and recognition, radar has been intensively studied since it was invented, and is considered as an essential sensor for future intelligent society.
S. Pan, Yamei Zhang
semanticscholar +1 more source
Performance study of automatic transmit power control (ATPC) in point to point microwave link for rain attenuation problem in Malaysia [PDF]
, 2006 Point-to-point microwave system is the backbone link for mobile communication industry as well as for other applications. In tropical region particularly in Malaysia, rain attenuation is the major constraint for implementing microwave system above 10GHz.
Saad, Muhamad Mokhtar
core
Structural aspects of AlPO4-5 zeotypes synthesized by microwave-hydrothermal process. 1. Effect of heating time and microwave power [PDF]
, 2009 AlPO4-5 with AFI structure containing 12-membered rings was prepared using the aluminum isopropoxide precursor as a source of alumina and TEA as the structure directing agent via microwave technique.
Sakintuna, Billur +2 more
core +3 more sources
Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures
Advanced Functional Materials, EarlyView.3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina +11 more
wiley +1 more source
Multifeature Fusion Neural Network for Oceanic Phenomena Detection in SAR Images
Sensors, 2019 Oceanic phenomena detection in synthetic aperture radar (SAR) images is important in the fields of fishery, military, and oceanography. The traditional detection methods of oceanic phenomena in SAR images are based on handcrafted features and detection ...
Zhuofan Yan +5 more
doaj +1 more source
Nanomaterials, 2020 Zinc oxide (ZnO) is a multifunctional material due to its exceptional physicochemical properties and broad usefulness. The special properties resulting from the reduction of the material size from the macro scale to the nano scale has made the ...
J. Wojnarowicz, T. Chudoba, W. Lojkowski
semanticscholar +1 more source
Directed transport born from chaos in asymmetric antidot structures
, 2005 It is shown that a polarized microwave radiation creates directed transport in an asymmetric antidot superlattice in a two dimensional electron gas. A numerical method is developed that allows to establish the dependence of this ratchet effect on several
A. D. Chepelianskii +23 more
core +2 more sources