Results 41 to 50 of about 1,709,207 (373)

Through-the-Wall Image Reconstruction via Reweighted Total Variation and Prior Information in Radio Tomographic Imaging

IEEE Access, 2020
This paper focuses on the application of radio tomographic imaging in through-the-wall image reconstruction. By using the simple wireless communication devices, e.g., Wi-Fi cards, the whole building layout can be reconstructed with only the received ...
Qichang Guo, Yanlei Li, Xingdong Liang, Jiawei Dong, Ruichang Cheng   +4 more
doaj   +1 more source

Applications of Graphene at Microwave Frequencies [PDF]

, 2015
In view to the epochal scenarios that nanotechnology discloses, nano-electronics has the potential to introduce a paradigm shift in electronic systems design similar to that of the transition from vacuum tubes to semiconductor devices.
Bellucci, S., Bozzi, M., Pierantoni, L.
core   +2 more sources

CMORPH: A Method that Produces Global Precipitation Estimates from Passive Microwave and Infrared Data at High Spatial and Temporal Resolution

, 2004
A new technique is presented in which half-hourly global precipitation estimates derived from passive microwave satellite scans are propagated by motion vectors derived from geostationary satellite infrared data.
R. Joyce, J. Janowiak, P. Arkin, P. Xie
semanticscholar   +1 more source

Spacial Energy Distribution Manipulation with Multi-focus Huygens Metamirror

Scientific Reports, 2017
Huygens metasurface is a planar array of crossed electric and magnetic dipoles, which provide specific surface current to tailor the electromagnetic field distribution.
Zhuochao Wang, Xumin Ding, Kuang Zhang, Qun Wu   +3 more
doaj   +1 more source

Nonlinear effects in microwave photoconductivity of two-dimensional electron systems

, 2003
We present a model for microwave photoconductivity of two-dimensional electron systems in a magnetic field which describes the effects of strong microwave and steady-state electric fields.
Anderson P W Brinkman W F, Ando T, Balev O G, Bergeret F S, Chaubet C, Chaubet C, Drammond T J, Ebert G, Gal?pern Yu S, Gladun A D, Heinonen O, Kawano Y, Keay B J, Klesse R Merz F, Komiyama S, Lei X L Liu S Y, Liu S Y, Malov A D, Mani R G, Mani R G Smet J H von Klitzing K Narayanamurti V Johnson W B Umansky V, Pokrovsky V L, R Suris, Ryzhii R, Ryzhii R Satou A, Ryzhii V, Ryzhii V, Ryzhii V, Ryzhii V, Ryzhii V I, Ryzhii V I, Ryzhii V I, Ryzhii V I, Ryzhii V I, Ryzhii V I, Ryzhii V Vyurkov V, Shchamkhalova B S, Shi J Xie X C, Tavger B A, V Ryzhii, V?yurkov V V, Vavilov M G Aleiner I L, Volkov A F Pavlovskii V V, Yang C L Zudov M A Knuuttila T A Du R R Pfeiffer L N West K W, Zakharov A L, Zudov M   +44 more
core   +1 more source

Variable frequency microwave (VFM) processing facilities and application in processing thermoplastic matrix composites [PDF]

, 2003
Microwave processing of materials is a relatively new technology advancement alternative that provides new approaches for enhancing material properties as well as economic advantages through energy savings and accelerated product development.
Ball, J. A. R., Ku, H. S., Siores, E., Siu, F.   +3 more
core   +1 more source

Hybrid Fishnet Metamaterial Based on Liquid Crystal and P-I-N Diodes for Reconfigurable Transmitarrays at $10 \,\mathrm{GHz}$

IEEE Journal of Microwaves
This article presents a reconfigurable unit cell for transmitarrays at $10 \,\mathrm{GHz}$ based on the fishnet metamaterial structure. The proposed design achieves a phase shift of up to $180 \mathrm{^{\circ }}$ between different states and additional ...
Adrian Diepolder, Lukas Schmidt, Susanne Brandl, Philipp Hinz, Christian Waldschmidt, Christian Damm   +5 more
doaj   +1 more source

Accelerated Sparse Microwave Imaging Phase Error Compensation Algorithm Based on Combination of SAR Raw Data Simulator and Map-drift Autofocus Algorithm

Leida xuebao, 2016
Sparse microwave imaging is new concept, theory and methodology of microwave imaging, which introduces the sparse signal processing theory to microwave imaging and combines them together to overcome the paradox of increasing system complexity and imaging
Zhang Zhe, Zhang Bingchen, Hong Wen, Wu Yirong   +3 more
doaj   +1 more source

A Ku Wideband Circularly Polarized Microstrip Antenna Array with Low Profile Crossed-Dipole Element

International Journal of Antennas and Propagation, 2023
This paper presents a novel Ku wideband circularly polarized (CP) antenna array composed of crossed-dipole element (CDE) and fed through sequential rotation (SR) feeding technique.
Haipeng Liu, Yunhua Zhang, Xiaowen Zhao
doaj   +1 more source

Short peptide perturbs spermatogenesis via immune microenvironment dysregulation and mitochondrial imbalance

FEBS Open Bio, EarlyView.
In the blood–testis barrier, occludin is crucial for tight junctions. This study demonstrates that occludin‐targeting short peptides disrupt junction integrity, inducing immune cell infiltration, tumor necrosis factor‐α/interleukin‐6 secretion and mitochondrial dysfunction, ultimately triggering apoptosis.
Heng Wang, Xiaofang Tan, Deyu Chen
wiley   +1 more source