Results 41 to 50 of about 5,753 (177)
Archaeology in Oceania, Volume 60, Issue 3, Page 201-219, October 2025.ABSTRACT Rings made on marine shell are a conspicuous artefact form found throughout cultural sequences for much of the Pacific over millennia. Despite their importance in both recent and ancient times, in‐depth consideration of the manufacturing processes involved in shell ring production are limited.
Michelle C. Langley +2 more
wiley +1 more source
A High-Resolution Atlas of Uranium-Neon in the H Band
, 2011 We present a high-resolution (R ~ 50 000) atlas of a uranium-neon (U/Ne) hollow-cathode spectrum in the H-band (1454 nm to 1638 nm) for the calibration of near-infrared spectrographs.
Bean +21 more
core +1 more source
Unexpected pathway for intercontinental movement into the Nearctic revealed by phylogenetic analyses
Zoologica Scripta, Volume 54, Issue 4, Page 562-574, July 2025.Abstract Much of North America's freshwater biodiversity is derived from Palearctic lineages. Isopods of the Holarctic family Asellidae are among the most widespread and diverse freshwater crustaceans, but Nearctic species are poorly studied. We examined the evolutionary history of the family, utilizing Sanger sequencing of mitochondrial and nuclear ...
Kye Tomoyasu +2 more
wiley +1 more source
, 2008 We have conducted a systematic survey for intervening OVI absorbers in available echelle spectra of 16 QSOs at z_QSO = 0.17-0.57. These spectra were obtained using HST/STIS with the E140M grating.
C. Thom, Hsiao‐Wen Chen, Persic M.
core +1 more source
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 9, 16 May 2025.Abstract Cirrus clouds have a large impact on radiation, yet coarse resolution models struggle to simulate their properties and structure realistically. Employing globally resolutions of below 5 km, the models from the Dynamics of the Atmospheric general circulation Modeled On Non‐hydrostatic Domains (DYAMOND) project do not require a parameterization ...
Karol Ćorko +3 more
wiley +1 more source
Grating monochromator wavelength calibration using an echelle grating wavelength meter
Optics Express, 2019 Monochromators are a common utility for the spectral calibration of spectrometers. To guarantee traceability of characterization measurements to SI-standards, monochromators used as secondary standards must be properly calibrated. Common calibration procedures are based on the measurement of spectral lines emitted by gas-discharge lamps or lasers.
openaire +3 more sources
On the Nature of the Strong Emission-Line Galaxies in Cluster Cl 0024+1654: Are Some the Progenitors of Low Mass Spheroidals? [PDF]
, 1997 We present new size, line ratio, and velocity width measurements for six strong emission-line galaxies in the galaxy cluster, Cl 0024+1654, at redshift z~0.4.
Babul A. +6 more
core +3 more sources
Ecohydrology, Volume 18, Issue 3, April‐May 2025.ABSTRACT Springs are groundwater‐dependent systems sustaining most of the riparian and aquatic habitat in western North America's deserts. The relationship between hydrogeology and springs is recognized by groundwater hydrologists and ecologists; however, studies integrating these disciplines have focused on site and species‐specific relationships.
Donald W. Sada, James M. Thomas
wiley +1 more source
Compact double-pass Echelle spectrometer employing a crossed diffraction grating
Optics Express, 2022 This contribution presents the design and implementation of a compact and robust Echelle-inspired cross-grating spectrometer which is arranged as a double pass setup. This allows use of the employed refractive elements for collimation of the incoming light and, after diffraction at the reflective crossed diffraction grating, for imaging the diffracted ...
Matthias Kraus +9 more
openaire +2 more sources
Advanced Functional Materials, Volume 34, Issue 45, November 5, 2024.Infusion withdrawal coating allows impregnation of cellulose with various FeCl3 concentrations. Carbonization leads then to gradual changes in the carbon microstructure and transport properties. This results in an exciting material with a controllable temperature gradient. Abstract Carbon materials comprise a wide range of microstructures and excellent
Alexander Berger +7 more
wiley +1 more source