Results 111 to 120 of about 1,129,195 (294)

A SAR Multiple RFI Suppression Method via Frobenius Norm and Iterative Matrix Decomposition

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The scarcity and sharing nature of the electromagnetic spectrum present a significant challenge to the stable operation of synthetic aperture radar (SAR) systems, as they are susceptible to interference from other devices operating in the same frequency ...
Qiang Guo   +5 more
doaj   +1 more source

Tropospheric and ionospheric effects upon radio frequency /VHF-SHF/ communication [PDF]

open access: yes
Tropospheric and ionospheric effects on radio frequency ...
Hirschmann, E.
core   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

open access: yesAdvanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo   +2 more
wiley   +1 more source

Simplified Laser Frequency Noise Measurement Using the Delayed Self-Heterodyne Method

open access: yesPhotonics
Here, we report on a simplified laser frequency noise measurement technique employing an acousto-optic modulator, a delay line, and a real-time oscilloscope. The technique is a slight modification of the typical delayed heterodyne method.
Seán P. Ó Dúill, Liam P. Barry
doaj   +1 more source

A piloted simulation study of data link ATC message exchange [PDF]

open access: yes
Data link Air Traffic Control (ATC) and Air Traffic Service (ATS) message and data exchange offers the potential benefits of increased flight safety and efficiency by reducing communication errors and allowing more information to be transferred between ...
Lohr, Gary W., Waller, Marvin C.
core   +2 more sources

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Texoskeletons: Developing the Fundamental Technologies for Creating Intelligent Soft Robotic Clothing With Integrated 1D Sensors and Actuators

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Traditional wearable exoskeletons rely on rigid structures, which limit comfort, flexibility, and everyday usability. This work introduces the fundamental technologies to create the first soft, lightweight, intelligent textile‐based exoskeletons (Texoskeletons) built using 1D sensors and actuators.
Amy Lukomiak   +19 more
wiley   +1 more source

Joint Luminance Adjustment and Color Correction for Low-Light Image Enhancement Network

open access: yesApplied Sciences
Most of the existing low-light enhancement research focuses on global illumination enhancement while ignoring the issues of brightness unevenness and color distortion.
Nenghuan Zhang   +5 more
doaj   +1 more source

Rising stars in information and communication technology [PDF]

open access: yes
The quest for more efficiency and security is reflected in the economy as a whole, but especially in the product and process innovations in information and communication technology (ICT).
Stefan Heng
core  

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

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