Results 141 to 150 of about 883,811 (388)

Fully Passive Electrochemical Oxygen Sensor Enabled With Organic Electrochemical Transistor

open access: yesAdvanced Materials Technologies, EarlyView.
A wireless oxygen sensor that operates with low power without batteries, using organic electrochemical transistors (OECTs) powered by near‐field communication (NFC) is presented. The sensor combines an oxygen‐permeable membrane and a gel electrolyte to detect oxygen in air and complex liquids, making way for sustainable sensor technologies.
Lia Giulia D'Amico   +9 more
wiley   +1 more source

Application of Wavelet Transform for Image Denoising of Spatially and Time Variable Astronomical Imaging Systems

open access: yesActa Polytechnica, 2011
We report on our efforts to formulate algorithms for image signal processing with the spatially and time variant Point-Spread Function (PSF) and inhomogeneous noise of real imaging systems.
M. Blažek, E. Anisimova, P. Páta
doaj  

Modulating D33 Coefficients Through In Situ AgF and Ag2O Growth in PVDF Composites for High‐Performance Piezoelectric Nanogenerators

open access: yesAdvanced Materials Technologies, EarlyView.
In situ, nanoparticle doping enhances the piezoelectric coefficient (**d₃₃**) of PVDF to ≈12 pC/N, while in situ growth of AgF and Ag₂O dopants increases β‐phase concentration. The nanogenerator achieves a 35 V open‐circuit voltage and 1.6 µA short‐circuit current, powering 10 blue LEDs and charging a 50 nF capacitor within 10 s.
Renjun Liu   +15 more
wiley   +1 more source

Hitomi (ASTRO-H) X-ray Astronomy Satellite

open access: yes, 2018
. The Hitomi (ASTRO-H) mission is the sixth Japanese x-ray astronomy satellite developed by a large international collaboration, including Japan, USA, Canada, and Europe. The mission aimed to provide the highest energy resolution ever achieved at E  >  2 
Tadayuki Takahashi   +269 more
semanticscholar   +1 more source

Integrated Ovonic Threshold Switching Selector and Resistive Switching Memory 1S1R in Electrodeposited ZnTe Thin Films

open access: yesAdvanced Materials Technologies, EarlyView.
This study showcases the first‐ever demonstration of ovonic threshold switching (OTS) and resistive switching (RS) in ZnTe thin films fabricated via a fast, cost‐effective electrodeposition method. By controlling the deposition potential, ZnTe film is tuned to demonstrate OTS or RS behaviors, enabling the implementation of one‐selector‐one‐resistor ...
Ayoub H. Jaafar   +8 more
wiley   +1 more source

The Casebooks Project

open access: yesRIDE, 2017
This essay reviews The Casebooks Project, an ambitious attempt to digitize 80,000 astrological medical records from early modern England. The Casebooks Project exemplifies the possibilities of using digital technologies to understand early modern ...
Joshua Kruchten
doaj   +1 more source

Astronomy Identity Framework for Undergraduate Students and Researchers [PDF]

open access: yesarXiv
This research was a qualitative transcendental phenomenological exploration of astronomy identity formation among astronomy majors and physics majors engaged in astronomy research. Participants (N=10), all of whom identified with traditionally marginalized groups in astronomy, were recruited from two large universities in New York State at different ...
arxiv  

Book Review Interferometry and Synthesis in Radio Astronomy - 3rd Ed [PDF]

open access: yesarXiv, 2017
Review of the third edition of "Interferometry and Synthesis in Radio Astronomy" by Thompson, Moran and ...
arxiv  

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