Results 121 to 130 of about 368,263 (301)

Evaluation of the KASI Det

Journal of Astronomy and Space Sciences, 2018
The characterization of detectors installed in space- and ground-based instruments is important to evaluate the system performance. We report the development of a detector performance test system for astronomical applications using the Andor iKon M CCD
Young Sam Yu, Jinsol Kim, Chan Park, Woong-Seob Jeong, Minjin Kim, Seonghwan Choi, Sung-Joon Park   +6 more
doaj   +1 more source

Bayesian parameter estimation using conditional variational autoencoders for gravitational-wave astronomy Data

, 2021
Hunter Gabbard
openalex   +2 more sources

The column density towards LMC X-1

, 2009
We measure the neutral absorption towards the black hole X-ray binary system LMC X-1 from six archival soft X-ray spectra obtained with the gratings and/or CCD detectors on Chandra, XMM-Newton, and Swift.
Barragan, Laura, Hanke, Manfred, Nowak, Michael A., Schulz, Norbert S., Wilms, Joern   +4 more
core   +1 more source

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

Advanced 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, Ki Hoon Shin, Yu Zhu, Qing Liu, Bing Ji, Guoxing Sun, Zongjin Li, Dadimuni De Silva, Aisling Stewart, Matteo Lorenzoni, Ingo Ludtke, Oliver A. Williams, Wenlong Ming, Giorgio Divitini, Jung Inn Sohn, Bo Hou   +15 more
wiley   +1 more source

The Orbit and Dynamical Mass of Polaris: Observations with the CHARA Array

The Astrophysical Journal
The 30 yr orbit of the Cepheid Polaris has been followed with observations by the Center for High Angular Resolution Astronomy (CHARA) Array from 2016 through 2021.
Nancy Remage Evans, Gail H. Schaefer, Alexandre Gallenne, Guillermo Torres, Elliott P. Horch, Richard I. Anderson, John D. Monnier, Rachael M. Roettenbacher, Fabien Baron, Narsireddy Anugu, James W. Davidson Jr., Pierre Kervella, Garance Bras, Charles Proffitt, Antoine Mérand, Margarita Karovska, Jeremy Jones, Cyprien Lanthermann, Stefan Kraus, Isabelle Codron, Howard E. Bond, Giordano Viviani   +21 more
doaj   +1 more source

Inelastic O+H collisions and the OI 777nm solar centre-to-limb variation

, 2018
The OI 777 nm triplet is a key diagnostic of oxygen abundances in the atmospheres of FGK-type stars; however it is sensitive to departures from local thermodynamic equilibrium (LTE).
Amarsi, A. M., Asplund, M., Barklem, P. S., Collet, R., Zatsarinny, O.   +4 more
core   +1 more source

Building Scalable Silicon Microring Resonator‐Based Neuromorphic Photonic Circuits Using Post‐Fabrication Processing with Photochromic Material

Advanced Optical Materials, EarlyView.
One of the high‐impact research goals in neuromorphic photonics is to build scalable photonic artificial intelligence computing at high energy efficiency. This perspective paper discusses microring resonator (MRR)‐based large‐scale photonic neural networks, variations of MRR resonance wavelength from fabrication, and post‐fabrication processing with ...
Lei Xu, Jiawei Zhang, Eli A. Doris, Simon Bilodeau, Jesse A. Wisch, Manting Gui, Yusuf O. Jimoh, Bhavin Shastri, Barry P. Rand, Paul R. Prucnal   +9 more
wiley   +1 more source

Measuring space-time variation of the fundamental constants with redshifted submillimetre transitions of neutral carbon

, 2011
We compare the redshifts of neutral carbon and carbon monoxide in the redshifted sources in which the fine structure transition of neutral carbon, [CI], has been detected, in order to measure space-time variation of the fundamental constants.
A. A. Stark, A. Tanna, Ao, Barvainis, Berengut, Bertoldi, Blain, Blain, Bothwell, Casey, Cooksy, Coppin, Cowie, Cox, Curran, Curran, Daddi, Daddi, Danielson, De Breuck, De Breuck, Downes, Downes, Emonts, Engargiola, F. E. Koch, Frayer, Frayer, Frayer, Garrett, Genzel, Gerin, Greve, Hainline, Henkel, Ikeda, Iono, Iono, Israel, Ivison, J. C. Berengut, J. K. Webb, Kanekar, Klamer, Klein, Kneib, Lestrade, Lestrade, Levshakov, Levshakov, Maiolino, Maiolino, Murphy, Murphy, Ofek, Ohta, Ojha, Omont, Papadopoulos, Papadopoulos, Papadopoulos, Pety, Riechers, Riechers, Riechers, S. J. Curran, Scoville, Sheth, Solomon, Spergel, Stutzki, Tacconi, Tacconi, Uzan, V. V. Flambaum, Walter, Walter, Weiß, Weiß, Weiß, White, Willott, Yamamoto, Yan   +83 more
core   +1 more source

Enhancing the Efficiency of Polariton OLEDs in and Beyond the Single‐Excitation Subspace

Advanced Optical Materials, EarlyView.
Organic light‐emitting diodes (OLEDs) are transforming lighting with eco‐friendly manufacturing and flexible applications. However, since 75 % of excited states (triplets) are non‐emissive, recent research has focused on triplet harvesting. This work proposes a predictive polariton‐based model, exploring conditions for OLED enhancement and showing that
Olli Siltanen, Kimmo Luoma, Andrew J. Musser, Konstantinos S. Daskalakis   +3 more
wiley   +1 more source

Yield estimation of summer maize based on multi‐source remote‐sensing data

Agronomy Journal, Volume 114, Issue 6, Page 3389-3406, November/December 2022., 2022
Abstract Accurately estimating regional‐scale crop yields is substantial in determining current agricultural production performance and effective agricultural land management. The Yuncheng Basin is an important grain‐producing area in the Shanxi Province. This paper used Sentinel 2A with a spatial resolution of 10 m and MODIS with a temporal resolution
Jingshu Wang, Peng He, Zhengchu Liu, Yaodong Jing, Rutian Bi   +4 more
wiley   +1 more source