Results 91 to 100 of about 74,044 (308)

Accelerating software radio astronomy FX correlation with GPU and FPGA co-processors

, 2010
Includes abstract.Includes bibliographical references (leaves [117]-121).This thesis attempts to accelerate compute intensive sections of a frequency domain radio astronomy correlator using dedicated co-processors.
Woods, Andrew
core  

Division x: Radio Astronomy

, 2012
This triennium has seen a phenomenal investment in development of observational radio astronomy facilities in all parts of the globe at a scale that significantly impacts the international community.
Hills, Richard, Rendong, Nan, Carilli, Christopher, Giovannini, Gabriele, Rubio, Monica, Taylor, Russ, Jonas, Justin, Hirabayashi, Hisashi, Shastri, Prajval, Lazio, Joseph, Chapman, Jessica, Morganti, Raffaella   +11 more
core   +1 more source

Machine‐Learning‐Enhanced Printed Vertical Magnetoresistive Sensors for Transparent, Flexible, Multimodal Interactive Magnetoelectronics

Advanced Science, EarlyView.
This study presents printed magnetoresistive sensors with a vertically aligned architecture that enables high optical transparency and mechanical flexibility. By integrating deep learning for the analysis of complex spatiotemporal signal patterns, the system further achieves intelligent multimodal interaction capabilities.
Rui Xu, Guannan Mu, Oleksandr V. Pylypovskyi, Qihao Zhang, Rico Illing, René Hübner, Ran He, Andreas Knüpfer, Sebastian Lehmann, Olha Bezsmertna, Kornelius Nielsch, Denys Makarov   +11 more
wiley   +1 more source

Physical Parameters and Magnetic Activity of M-type Stars Based on the LAMOST DR9, SDSS, and TESS Surveys

The Astrophysical Journal Supplement Series
We analyze a catalog comprising 781,232 spectra from 641,095 M dwarf stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) low-resolution spectroscopic data release 9.
Wenjie Li, Li-yun Zhang, Tianhao Su, Xianming L. Han, Prabhakar Misra, Qingfeng Pi   +5 more
doaj   +1 more source

Site selection for a radio astronomy observatory in Turkey: atmospherical, meteorological, and radio frequency analyses

, 2012
---Selecting the future site for a large Turkish radio telescope is a key issue. The National Radio Astronomy Observatory is now in the stage of construction at a site near Karaman City, in Turkey.
ONAY, Sedat, ÖZEREN, Ferhat Fikri, Dagtekin, Nazli Derya, ÖZDEMİR, Ali Riza, ÖZ, Sukriye, Sarikaya, Mikail, GÜLŞEN, Mehmet, KÜÇÜK, Ibrahim, Uler, Ipek   +8 more
core   +1 more source

Photoresponse Properties of Ambipolar Transport in WSe2 Field‐Effect Transistors

Advanced Electronic Materials, EarlyView.
This study explores the photoresponse of WSe2 ambipolar field‐effect transistors, which exhibit unipolar, saturation, and ambipolar transport regions. Light illumination induces a shift of critical voltage with enhanced photocurrent generation driven by the photogating effect without the material degradation seen in avalanche photodetectors. This study
Jongeun Yoo, Seongmin Ko, Sunggyu Ryoo, Jaehyoung Park, Jaeyoung Kim, Juntae Jang, Jinwoo Sim, Donguk Kim, SeungNam Cha, Chongwu Zhou, Kyungjune Cho, Takhee Lee   +11 more
wiley   +1 more source

Revealing the Spectral Properties of Magnetic Turbulence by Synchrotron Polarization Gradients

The Astrophysical Journal
Based on the modern understanding of MHD turbulence theory, we propose a new method for measuring the spectral properties of magnetic turbulence by synchrotron polarization gradient analysis.
Jian-Fu Zhang, Zi-Qi Liu
doaj   +1 more source

Uranium Doped Gallium Nitride Epitaxial Thin Films

Advanced Electronic Materials, EarlyView.
Uranium was controllably added to gallium nitride using molecular beam epitaxy. The uranium atoms segregated into vertically oriented regions with higher doping levels. Concentrations up to a few percent were achieved without showing significant degradation in the crystalline quality or optical characteristics. Low electrical resistivity was maintained
J. Pierce Fix, Sabin Regmi, Aaron G. Penders, Sohail Shah, Kevin D. Vallejo, Volodymyr B. Buturlim, Belief Rifore, Krzysztof Gofryk, Mukesh Bachhav, Nicholas J. Borys, Brelon J. May   +10 more
wiley   +1 more source

Pulsar Science with the SKA Observatory

The Open Journal of Astrophysics
The large instantaneous sensitivity, a wide frequency coverage and flexible observation modes with large number of beams in the sky are the main features of the SKA observatory's two telescopes, the SKA-Low and the SKA-Mid, which are located on two ...
Bhal Chandra Joshi, Aris Karastergiou, Marta Burgay, SKA Pulsar Science Working Group   +3 more
doaj   +1 more source

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

Advanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith, Ryan D. McKenzie, Alban Joseph, Robert L. Stamps, Rair Macêdo   +4 more
wiley   +1 more source