Results 51 to 60 of about 25,300,669 (221)
Volume II Acquisition Research Creating Synergy for Informed Change [PDF]
, 2017 Naval Postgraduate School Acquisition Research ...
NPS Acquisition Research Program
core
Synthesis of Bulk Superconducting LiNbO2 Crystals Through CaH2 Reduction
Advanced Materials, EarlyView.CaH2 reduction reconstructively transforms insulating LiNbO3 single crystals into superconducting bulk LiNbO2 with a critical temperature of Tc = 14.4 K. Scanning electron microscopy reveals large‐volume, high‐yield phase conversion. Magnetization measurements demonstrate a robust ∼ 77% Meissner shielding fraction, establishing bulk superconductivity ...
Ryan Paxson +19 more
wiley +1 more source
SensorsPolarimetric spectral imaging systems have unique application advantages in environmental remote sensing, military target recognition, astronomy, medicine, etc., because of their ability to acquire multidimensional information.
Zihao Liu +3 more
doaj +1 more source
Chiral Phonon–Driven Ultrafast Spin Currents in a Non‐Magnetic Ferroelectric
Advanced Materials, EarlyView.Broadband terahertz emission spectroscopy shows signatures of ultrafast spin‐current generation in non‐magnetic ferroelectric β$\beta$’‐In2Se3${\rm In}_2{\rm Se}_3$. Reversal of the emitted field upon sample inversion and substitution of Pt with W indicates spin‐Hall‐mediated charge conversion, while polarization‐resolved measurements reveal ...
Thomas B. Gill +16 more
wiley +1 more source
Student Research Poster Show of the 17th Annual Acquisition Research Symposium [PDF]
, 2020 Although this year’s symposium was not held as a live event, ARP continues the annual tradition of making publicly available the posters from the students in the Aquisition Research Program.
NPS Acquisition Research Program
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Deep Sky Objects Detection with Deep Learning for Electronically Assisted Astronomy
AstronomyElectronically Assisted Astronomy is a fascinating activity requiring suitable conditions and expertise to be fully appreciated. Complex equipment, light pollution around urban areas and lack of contextual information often prevents newcomers from making
Olivier Parisot, Mahmoud Jaziri
doaj +1 more source
An Adaptive Method for Star Extraction from Digital Astronomical Images [PDF]
فصلنامه علوم و فناوری فضایی, 2010 Celestial positioning has been used for navigation purposes for many years. Stars as the extra-terrestrial benchmarks provide unique opportunity in absolute point positioning.
M. A. Sharifi +2 more
doaj
Advanced Materials, EarlyView.Remote catalytic dehydrogenation enables the direct growth of monolayer amorphous carbon on a 2‐inch sapphire wafer by thermal CVD. Spatial separation of the catalyst from the growth substrate eliminates metallic residue and post‐growth processing, yielding a wafer‐scale uniform film with a random polygonal sp2‐hybridized carbon network that exhibits ...
Muhammad Sabbtain Abbas +8 more
wiley +1 more source
Effect of Nitrogen Doping on the Proton‐Irradiation Stability of Carbon Nanowalls
Advanced Materials Interfaces, EarlyView.Proton irradiation effects in carbon nanowalls are systematically compared with nitrogen‐doped counterparts over a wide fluence range. While both systems maintain structural integrity, nitrogen incorporation alters the functional response under irradiation.
Baglan A. Kyrykbay +12 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.When exposed to light of a defined wavelength, the photoisomerization of azobenzene chromophores leads to polymer reorientation, generating stresses that result in solvent‐facilitated localized delamination of the film from the substrate. Additionally, blisters that form spontaneously when exposed to an aqueous environment can be manipulated via ...
James Robert Benson +4 more
wiley +1 more source