Results 131 to 140 of about 4,289,171 (382)

Energy spectrum of extragalactic gamma-ray sources [PDF]

The result of Monte Carlo electron photon cascade calculations for propagation of gamma rays through regions of extragalactic space containing no magnetic field are given.
Protheroe, R. J.
core   +1 more source

The hard X-ray view of bright infrared galaxies

, 2009
Aims. The synthesis of the cosmic X-ray background (CXB) requires a large population of Compton-thick active galactic nuclei that have not been detected so far.
Akylas, Armus, Barger, Bassani, Courvoisier, Dadina, de Rosa, Franceschini, Genzel, Gilli, Gondoin, González-Martín, Grimm, Guainazzi, Kawakatu, Kennicutt, La Franca, Lebrun, Lynden-Bell, Matt, Mushotzky, N. Cabral, Paltani, R. Walter, Risaliti, Risaliti, Sanders, Schmidt, Setti, Terashima, Tozzi, Tueller, Ubertini, Vega, Vignati, Walter, Watabe, Wilkes, Wilkes, Zdziarski   +39 more
core   +1 more source

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri, Amal C Chekkallur, Mario Calora, Rosanna Mastria, Loris Martinazzoli, Etiennette Auffray, Sanosh Kunjalukkal Padmanabhan, Sara Carturan, Sandra Moretto, Gianluca Quarta, Lucio Calcagnile, Matteo Polo, Alberto Quaranta, Alfonso Maffezzoli, Anna Paola Caricato, Aurora Rizzo, Carola Esposito Corcione   +16 more
wiley   +1 more source

Discussion on Optical Microscope Imaging Modes and a Cold Light Source Device by Using Frequency Splitting and Compose

Yankuang ceshi, 2014
Halogen lamps, pure water filtered heat rays and LED are the main conventional light sources for the optical microscope. Halogen lamp light source contains a lot of infrared rays from 760 to 1400 nm.
ZHAO Ying-quan, SHEN Zhong-min, WANG Peng   +2 more
doaj   +2 more sources

Upper Limits on the Extragalactic Background Light from the Gamma-Ray Spectra of Blazars

, 2005
The direct measurement of the extragalactic background light (EBL) is difficult at optical to infrared wavelengths because of the strong foreground radiation originating in the Solar System.
Aharonian F. A., Armand C., Bradbury S. M., Franceschini A., Guy J., Lagache G., M. Schroedter, Matsumoto T., Nikishov A. I., Petry D.   +9 more
core   +1 more source

The Route to Artery Mimetics: Hybrid Bioinks for Embedded Bioprinting of Multimaterial Cylindrical Models

Advanced Functional Materials, EarlyView.
The fabrication of a cellularized, multilayered 3D printed cylindrical model comprising hybrid bioinks inspired by the natural extracellular environment as an approach to artery mimetics, is presented. Using embedded bioprinting, interlayer crosslinking of self‐supporting concentric cylinders is achieved.
Uxue Aizarna‐Lopetegui, Ada Herrero‐Ruiz, Monize C. Decarli, Ane Urigoitia‐Asua, Karla Chavarri‐Urraca, Lorenzo Moroni, Malou Henriksen‐Lacey, Dorleta Jimenez de Aberasturi   +7 more
wiley   +1 more source

Near-infrared observations of PSR J1357-6429

, 2015
PSR J1357$-$6429 is a young radio pulsar that was detected in X-rays and $\gamma$-rays. We present the high spatial resolution near-infrared imaging of the pulsar field in $J$, $H$ and $K_s$ bands obtained with the VLT/NaCo using the Adaptive Optic ...
Danilenko, A., Kirichenko, A., Mennickent, R. E., Shibanov, Yu., Zharikov, S., Zyuzin, D.   +5 more
core   +1 more source

TeV Gamma–Ray Absorption and the Intergalactic Infrared Background [PDF]

Symposium - International Astronomical Union, 2001
In this paper, I will take a synoptic approach to determining the intergalactic infrared radiation field (IIRF). This approach draws on both the multi-TeV γ-ray observations and the infrared background observations and relates them via the semi-empirical modelling method of Malkan & Stecker.
openaire   +3 more sources

Ionic Liquid‐Based Reversible Metal Electrodeposition for Adaptive Radiative Thermoregulation Under Extreme Environments

Advanced Functional Materials, EarlyView.
A wideband tunable electrochromic device with dynamic thermal emissivity control is demonstrated. The system enables adaptive heat regulation via electrochemically modulated silver deposition, achieving efficient cooling and heating states. The flexible design ensures mechanical robustness under bending conditions, making it promising for portable and ...
Jiawei Liang, Chenxi Sui, Jiacheng Tian, Genesis Higueros, Ting‐Hsuan Chen, Ronghui Wu, Pei‐Jan Hung, Yang Deng, Natalie Rozman, Willie John Padilla, Po‐Chun Hsu   +10 more
wiley   +1 more source

Infrared LED Enhanced Spectroscopic CdZnTe Detector Working under High Fluxes of X-rays

Sensors, 2016
This paper describes an application of infrared light-induced de-polarization applied on a polarized CdZnTe detector working under high radiation fluxes.
Jakub Pekárek, Václav Dědič, Jan Franc, Eduard Belas, Martin Rejhon, Pavel Moravec, Jan Touš, Josef Voltr   +7 more
doaj   +1 more source