Results 71 to 80 of about 293,183 (274)
The 2011 October Draconids Outburst. II. Meteoroid Chemical Abundances from Fireball Spectroscopy [PDF]
On October 8, 2011 the Earth crossed dust trails ejected from comet 21P/Giacobini-Zinner in the late 19th and early 20th Century. This gave rise to an outburst in the activity of the October Draconid meteor shower, and an international team was organized
Cabrera-Caño, J. +6 more
core +3 more sources
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner +4 more
wiley +1 more source
Simultaneous PMC and PMSE observations with a ground-based lidar and SuperDARN HF radar at Syowa Station, Antarctica [PDF]
A Rayleigh–Raman lidar system was installed in January 2011 at Syowa Station, Antarctica (69.0° S, 39.6° E). Polar mesospheric clouds (PMCs) were detected by lidar at around 22:30 UTC (LT −3 h) on 4 February 2011, which was the first day of ...
H. Suzuki +9 more
doaj +1 more source
Development of Ground-testable Phase Fresnel Lenses in Silicon
Diffractive/refractive optics, such as Phase Fresnel Lenses (PFL's), offer the potential to achieve excellent imaging performance in the x-ray and gamma-ray photon regimes.
B. Morgan +14 more
core +1 more source
Image organization and navigation strategies for a radiological work station [PDF]
One can distinguish two distinct preliminary phases in the "analog" radiographs reading process. The first phase deals with the film selection and placement on viewboxes (image organization), and the second with the actual film reading (involving image navigation, ie, the means for accessing the individual images).
E, Roger, M, Goldberg, R F, Dillon
openaire +2 more sources
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song +3 more
wiley +1 more source
Featured Herbarium: BUT—The Friesner Herbarium of Butler University [PDF]
Feature written by Rebecca Dolan on the BUT—The Friesner Herbarium of Butler University in the ...
Dolan, Rebecca W.
core +1 more source
All-sky signals from recombination to reionization with the SKA
Cosmic evolution in the hydrogen content of the Universe through recombination and up to the end of reionization is expected to be revealed as subtle spectral features in the uniform extragalactic cosmic radio background.
Pritchard, Jonathan +3 more
core +1 more source
MEMS BASED BRIDGE MONITORING SUPPORTED BY IMAGE-ASSISTED TOTAL STATION [PDF]
Abstract. In this study, the feasibility of Micro-Electro-Mechanical System (MEMS) accelerometers and an image-assisted total station (IATS) for short- and long-term deformation monitoring of bridge structures is investigated. The MEMS sensors of type BNO055 from Bosch as part of a geo-sensor network are mounted at different positions of the bridge ...
M. Omidalizarandi +6 more
openaire +3 more sources
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo +14 more
wiley +1 more source

