Results 71 to 80 of about 2,287,120 (303)

Mid-infrared Selection of Active Galactic Nuclei with the Wide-Field Infrared Survey Explorer. I. Characterizing WISE-selected Active Galactic Nuclei in COSMOS [PDF]

open access: yes, 2012
The Wide-field Infrared Survey Explorer (WISE) is an extremely capable and efficient black hole finder. We present a simple mid-infrared color criterion, W1 – W2 ≥ 0.8 (i.e., [3.4]–[4.6] ≥0.8, Vega), which identifies 61.9 ± 5.4 active galactic nucleus ...
Assef, Roberto J.   +17 more
core   +1 more source

Infrared Spectra of Small Radicals for Exoplanetary Spectroscopy: OH, NH, CN and CH: The State of Current Knowledge [PDF]

open access: gold, 2023
Svatopluk Civiš   +4 more
openalex   +1 more source

Cobalt Tungstate Characterization Using Matryoshka‐Structure Filter

open access: yesAdvanced Engineering Materials, EarlyView.
The green synthesis of cobalt tungstate (CoWO4) using natural polymerizing agents from agar–agar and commercial produces environmentally friendly materials with tunable structural and electromagnetic properties. X‐ray diffraction and Rietveld refinement correlate crystal structure with microwave transmission losses in Matryoshka‐type filters.
Amanda Gomes Barboza   +6 more
wiley   +1 more source

Ultrasensitive photoelectric detection with room temperature extremum

open access: yesLight: Science & Applications
Room-temperature photodetection holds pivotal significance in diverse applications such as sensing, imaging, telecommunications, and environmental remote sensing due to its simplicity, versatility, and indispensability. Although different kinds of photon
Tuntan Wu   +8 more
doaj   +1 more source

Scalable Robotic Laser Texturing of Tilted Microanchors for Direction‐Independent Metal–Polymer Joining

open access: yesAdvanced Engineering Materials, EarlyView.
A robot‐assisted laser processing method is proposed that enables the formation of surface‐tilted microanchors on metal substrates to improve metal–polymer joining. Using a six‐axis robotic platform, the laser beam's incidence angle, scanning path, and interline pitch can be precisely controlled, allowing the deliberate overlap of heat‐affected zones ...
Jun‐Chan Choi   +3 more
wiley   +1 more source

Photoelectronic Properties of End-bonded InAsSb Nanowire Array Detector under Weak Light

open access: yesNanoscale Research Letters, 2021
A simple fabrication of end-bonded contacts InAsSb NW (nanowire) array detector to weak light is demonstrated in this study. The detector is fabricated using InAsSb NW array grown by molecular beam epitaxy on GaAs substrate.
Xiaomei Yao   +7 more
doaj   +1 more source

AKARI infrared imaging of reflection nebulae IC4954 and IC4955

open access: yes, 2007
We present the observations of the reflection nebulae IC4954 and IC4955 region with the Infrared Camera (IRC) and the Far-Infrared Surveyor (FIS) on board the infrared astronomical satellite AKARI during its performance verification phase.
Doi, Yasuo   +28 more
core   +1 more source

Development of SiC Nanocomposites Using Direct Ink Writing Process

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, feedstock inks containing polycarbosilane and various concentrations of SiC nanoparticles (SiCnp) are investigated for fabricating ceramic matrix composites using a DIW 3D printing process. Characterization results from physical measurement, microstructure analysis, and thermal and flexural testing suggested that high‐performance CMC samples ...
Jinchen Han   +5 more
wiley   +1 more source

Unlocking body-surface physiological evolution via IR-temperature dual sensing with single chalcogenide fiber

open access: yesLight: Science & Applications
Improvements to body-surface physiological monitoring ability including real-time, accuracy and integration, are essential to meet the expansive demands for personal healthcare.
Yanqing Fu   +7 more
doaj   +1 more source

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