Results 181 to 190 of about 2,286 (247)

Modified Reference SPS with Solid State Transmitting Antenna [PDF]

open access: yes
The development of solid state microwave power amplifiers for a solar power satellite transmitting antenna is discussed. State-of-the-art power-added efficiency, gain, and single device power of various microwave solid state devices are compared.
Sperber, B. R., Woodcock, G. R.
core   +1 more source

Nanoparticles in microdroplets: Recent advances in microfluidic generators for producing functional microbeads

open access: yesDroplet, EarlyView.
Functional hybrid microbeads with electrical, magnetic, and/or optical responsiveness have emerged as versatile platforms for biotechnology. This review highlights recent advances in microfluidic technologies for producing such microbeads, with a focus on incorporating functional nanoparticles in microdroplet systems.
  Bayinqiaoge   +2 more
wiley   +1 more source

A Millimeter-Wave Digital Link for Wireless MRI. [PDF]

open access: yesIEEE Trans Med Imaging, 2017
Aggarwal K   +6 more
europepmc   +1 more source

Sustainable Live Sound Monitoring and Classification System Enabled by a Triboelectric Nanogenerator and Machine Learning Techniques

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A high‐performance Triboelectric Nanogenerator (TENG) acoustic sensor using polyimine/graphite polypropylene (PI/GP) was developed for real‐time, sustainable sound monitoring and classification. The self‐powered device delivers 25.67 μW output power, 92.7% accuracy with MobileNet V1, and powers a wireless transmission circuit, demonstrating dual ...
Majid Haji Bagheri   +8 more
wiley   +1 more source

Optimizing Intermediate Adsorption on FeNi3 Alloy by Substrate Defect‐Engineering for Enhanced Oxygen Electrocatalysis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The presence of carbon edge defects and graphitic valley nitrogen significantly alters the energy band structure of the catalyst, enhancing the desorption of oxygen‐containing intermediates and thereby improving the performance of the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and zinc‐air battery (ZAB).
Ruixi Jin   +9 more
wiley   +1 more source

GaIn‐Induced Polarization Control in PVDF for High‐Efficiency Energy Harvesting and Instantaneous Wireless Sensing

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a liquid metal–engineered β‐PVDF composite enabling high‐performance piezoelectric–triboelectric nanogenerators. Guided by MD/DFT simulations, GaIn doping promotes β‐phase formation and dipole alignment, while native oxides enhance charge retention.
Jiaqi Lu   +13 more
wiley   +1 more source

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