Results 31 to 40 of about 6,256 (242)

Insulator fault feature extraction system of substation equipment based on machine vision

IET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang, Qiaoqun Xia, Lijun Ma, Xin Xu, Zhipeng Shao   +4 more
wiley   +1 more source

A Joint Azimuth Multichannel Cancellation (JAMC) Antibarrage Jamming Scheme for Spaceborne SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The azimuth multichannel synthetic aperture radar (SAR) increases the swath width by reducing the pulse repetition frequency (PRF), thus providing an effective scheme for realizing high-resolution and wide-swath (HRWS) imaging simultaneously.
Shuohan Cheng, Xilong Sun, Yonghua Cai, Huifang Zheng, Weidong Yu, Yanyan Zhang, Sheng Chang   +6 more
doaj   +1 more source

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

Advanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase, Varsha C. Pujari, Akash V. Fulari, Sunil M. Patange, Sean Li, Danyang Wang, Sagar E. Shirsath   +6 more
wiley   +1 more source

A Single-Pass Multistatic SAR Satellites Formation Design Method for TomoSAR Data Acquisition

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar tomography (TomoSAR) enables 3-D SAR imaging. However, most spaceborne TomoSAR data are currently acquired through repeated passes of a single satellite, during which the atmospheric and deformation phases complicate processing ...
Sisi Dong, Weidong Yu, Jili Wang, Yulun Wu, Qiang Lin, Chunle Wang, Xiaoxue Jia   +6 more
doaj   +1 more source

A Novel Time-Domain Frequency Diverse Array HRWS Imaging Scheme for Spotlight SAR

Remote Sensing, 2022
The frequency diverse array (FDA) technique is a novel scheme for high resolution wide swath synthetic aperture radar (SAR) imaging, which employs a frequency increment across the array elements.
Yuhao Wen, Zhimin Zhang, Zhen Chen, Jinsong Qiu, Mingshan Ren, Xiangrui Meng   +5 more
doaj   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

A Visibility-Aware Neural Gaussian Framework for SAR Image Generation and Data Augmentation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) is an active remote sensing technique that typically exhibits view-dependent anisotropic scattering and self-shadowing due to its imaging mechanism.
Zixuan Zhang, Heng Zhang, Wei Xiang, Fengli Xue, Congrui Yang, Sheng Chang, Yunkai Deng   +6 more
doaj   +1 more source

Sensitivity Analysis of Microwave Spectrometer for Atmospheric Temperature and Humidity Sounding on the New Generation Fengyun Satellite

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The vertical profiles, spatiotemporal distribution, and trends of temperature and humidity in the middle atmosphere are significant for numerical weather prediction and the analysis of global climate change.
Wenming He, Zhenzhan Wang, Wenyu Wang, Zhou Zhang   +3 more
doaj   +1 more source

Fully polarimetric microwave radiometer for remote sensing [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2003
The design, characteristics, and operation of the Helsinki University of Technology Fully Polarimetric Radiometer (FPoR) are described. The developed 36.5-GHz radiometer can be used for airborne remote sensing; however, ground-based and laboratory measurements are also possible.
Janne Lahtinen, Jörgen Pihlflyckt, Ilkka Mononen, Simo Tauriainen, Martti Kemppinen, Martti T. Hallikainen   +5 more
openaire   +1 more source

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

Advanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich, Florian Hartmann, Herbert Shea   +2 more
wiley   +1 more source