Results 81 to 90 of about 6,696,337 (373)

Three-Dimensional Imaging Method for Array ISAR Based on Sparse Bayesian Inference

Sensors, 2018
The problem of synthesis scatterers in inverse synthetic aperture radar (ISAR) make it difficult to realize high-resolution three-dimensional (3D) imaging.
Zekun Jiao, Chibiao Ding, Longyong Chen, Fubo Zhang   +3 more
doaj   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

A Geometric Semantic Enhanced TomoSAR Reconstruction Algorithm in an Urban Area: Analysis and Application

Journal of Remote Sensing
Tomographic synthetic aperture radar (TomoSAR) has the ability to separate mixed scatterers, making it highly suitable for urban 3-dimensional (3D) reconstruction.
Chunyi Wang, Qiancheng Yan, Xiaolan Qiu, Yitong Luo, Lingxiao Peng, Zhe Zhang   +5 more
doaj   +1 more source

Generation of Ultrastable Microwaves via Optical Frequency Division

, 2011
There has been increased interest in the use and manipulation of optical fields to address challenging problems that have traditionally been approached with microwave electronics.
A Bartels, A. Ludlow, AA Savchenkov, AD Ludlow, AG Mann, BC Young, C. W. Oates, CR Locke, EN Ivanov, F. Quinlan, G Santarelli, GC Valley, J Capmany, J Millo, J Millo, J Taylor, J. C. Bergquist, J. Taylor, JA Scheer, JJ McFerran, L-S Ma, M. S. Kirchner, N. Lemke, S Doeleman, S Grop, S Grop, S Weyers, S. A. Diddams, SA Diddams, SA Webster, ST Dawkins, T. M. Fortier, T. Rosenband, TM Fortier, W Zhang, Y. Jiang, YY Jiang   +36 more
core   +1 more source

A Homogeneous Breast Phantom Measurement System with an Improved Modified Microwave Imaging Antenna Sensor

Italian National Conference on Sensors, 2018
Microwave breast imaging has been reported as having the most potential to become an alternative or additional tool to the existing X-ray mammography technique for detecting breast tumors.
Mohammad Tausiful Islam, M. Samsuzzaman, M. T. Islam, S. Kibria, J. S. Mandeep   +4 more
semanticscholar   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Synthetic Aperture Radar Interferometry Based on Vortex Electromagnetic Waves

IEEE Access, 2019
The vortex electromagnetic (EM) wave carrying orbital angular momentum (OAM) offers a new degree of freedom for synthetic aperture radar (SAR) imaging. Because vortex EM waves have helical wavefronts, the vortex EM wave-based SAR echo contains the three ...
Xiang-Xi Bu, Zhuo Zhang, Long-Yong Chen, Ke-Hong Zhu, Siyan Zhou, Jian-Ping Luo, Ruichang Cheng, Xing-Dong Liang   +7 more
doaj   +1 more source

Low Power Superconducting Microwave Applications and Microwave Microscopy [PDF]

, 1998
We briefly review some non-accelerator high-frequency applications of superconductors. These include the use of high-Tc superconductors in front-end band-pass filters in cellular telephone base stations, the High Temperature Superconductor Space ...
Anlage, Steven M., Dutta, S. K., Feenstra, B. J., Steinhauer, D. E., Thanawalla, A., Vlahacos, C. P., Wellstood, F. C.   +6 more
core   +2 more sources

Parallel preconditioners for high order discretizations arising from full system modeling for brain microwave imaging [PDF]

, 2016
This paper combines the use of high order finite element methods with parallel preconditioners of domain decomposition type for solving electromagnetic problems arising from brain microwave imaging.
Bonazzoli, Cai, Dolean, Dolean, Hecht, Mikael, Nédélec, Parks, Rapetti, Rapetti, Semenov   +10 more
core   +4 more sources

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

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, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source