Results 81 to 90 of about 870,817 (352)
Analysis of KVN 21m Radio Antenna Optics using Ray-Tracing Method [PDF]
Journal of Astronomy and Space Sciences, 2009 In this work, we calculate drop in antenna gain, aperture phase distribution, and antenna pointing shift of KVN(Korean VLBI Network) 21m shaped Cassegrain antenna due to misalignments of antenna optics using ray-tracing method.
Jae-Han Bae, Do-Young Byun
doaj +1 more source
Space-based aperture array for ultra-long wavelength radio astronomy [PDF]
, 2015 The past decade has seen the advent of various radio astronomy arrays, particularly for low-frequency observations below 100 MHz. These developments have been primarily driven by interesting and fundamental scientific questions, such as studying the dark
R. Rajan +7 more
semanticscholar +1 more source
Flexible Selenium Nanowires with Tuneable Electronic Bandgaps
Advanced Materials, EarlyView.Nanotubes serve as effective test tubes for selenium nanowires, as their diameter precisely controls the width of the nanowires and the Se─Se bonding, resulting in a variety of different structures. An electron beam can be used to modify the nanotubes, allowing real‐time observation of the nanowire extrusion process. Additionally, optically transparent
William J. Cull +12 more
wiley +1 more source
Epilepsia Open, EarlyView., 2022 Abstract The International League Against Epilepsy/American Epilepsy Society (ILAE/AES) Joint Translational Task Force established the TASK3 working groups to create common data elements (CDEs) for various preclinical epilepsy research disciplines.
Laura Bindila +11 more
wiley +1 more source
Rare‐Earth Ion Intercalation in Graphene via Thermal and Electrostatic Control
Advanced Materials, EarlyView.Europium ions reversibly intercalate into the van der Waals gap of bilayer graphene when heat and electrostatic gate act together, switching the stacking order and electronic response on demand. Real‐time transport, simulations, and device tests expose a hidden 2D Eu sheet and its temperature‐tuned diffusion, showing a versatile electrochemical route ...
Mengjie Feng +11 more
wiley +1 more source
Advanced Materials, EarlyView.The coexistence of ferromagnetic and antiferromagnetic orders in van der Waals magnet above room temperature, inducing an intrinsic exchange bias and canted perpendicular magnetism is discovered. Such non‐trivial intrinsic magnetic order enables the realization of energy‐efficient and magnetic field‐free spin‐orbit torque memory devices.
Bing Zhao +8 more
wiley +1 more source
MASER: A Science Ready Toolbox for Low Frequency Radio Astronomy
Data Science Journal, 2020 MASER (Measurements, Analysis, and Simulation of Emission in the Radio range) is a comprehensive infrastructure dedicated to time-dependent low frequency radio astronomy (up to about 50 MHz). The main radio sources observed in this spectral range are the
Baptiste Cecconi +23 more
doaj +1 more source
Advances in Topological Thermoelectrics: Harnessing Quantum Materials for Energy Applications
Advanced Materials, EarlyView.Topological materials offer a novel platform for thermoelectric energy conversion through unique band features, including band inversion, linear Dirac bands, surface states, and Berry curvature. These quantum characteristics enable enhanced longitudinal and transverse thermoelectric effects, establishing topological thermoelectrics as a promising ...
Guangsai Yang +8 more
wiley +1 more source