Results 51 to 60 of about 75,657 (271)
The Chemical Evolution of the Draco Dwarf Spheroidal Galaxy [PDF]
, 2009 We present an abundance analysis based on high resolution spectra of 8 stars selected to span the full range in metallicity in the Draco dwarf spheroidal galaxy. We find [Fe/H] for the sample stars ranges from -1.5 to -3.0 dex.
Cohen, Judith G., Huang, Wenjin
core +2 more sources
Spin-Spin Interactions in Gauge Theory of Gravity, Violation of Weak Equivalence Principle and New Classical Test of General Relativity [PDF]
, 2006 For a long time, it is generally believed that spin-spin interactions can only exist in a theory where Lorentz symmetry is gauged, and a theory with spin-spin interactions is not perturbatively renormalizable. But this is not true. By studying the motion
+39 more
core +4 more sources
Evaluation of the Emissions State of a Satellite Laser Altimeter Based on Laser Footprint Imaging
Remote Sensing, 2022 The GaoFen-7(GF-7) satellite is equipped with China’s first laser altimeter for Earth observation; it has the capability of full waveform recording, which can obtain global high-precision three-dimensional coordinates over a wide range.
Jiaqi Yao +4 more
doaj +1 more source
Large-scale Land Cover Classification in GaoFen-2 Satellite Imagery
, 2018 Many significant applications need land cover information of remote sensing images that are acquired from different areas and times, such as change detection and disaster monitoring.
Lu, Qikai +3 more
core +1 more source
Search for time modulations in the decay rate of 40K and 232Th [PDF]
, 2014 Time modulations at per mil level have been reported to take place in the decay constant of about 15 nuclei with period of one year (most cases) but also of about one month or one day.
Bellotti, E. +5 more
core +1 more source
International Journal of Digital Earth, 2023 After being launched into orbit, the geometric calibration of a satellite laser altimeter will reduce errors in laser pointing and ranging caused by satellite vibrations during launch, environmental changes, and thermal effects during long-term operation,
Junfeng Xie +5 more
doaj +1 more source
Clustering at high redshift: The connection between Lyman Alpha emitters and Lyman break galaxies
, 2013 We present a physically motivated semi-analytic model to understand the clustering of high redshift Lyman Alpha Emitters (LAEs). We show that the model parameters constrained by the observed luminosity functions, can be used to predict large scale bias ...
Jose, Charles +2 more
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On satellites in semi-abelian categories: Homology without projectives [PDF]
, 2009 Working in a semi-abelian context, we use Janelidze's theory of generalised satellites to study universal properties of the Everaert long exact homology sequence.
Borceux +13 more
core +1 more source
Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics
Advanced Engineering Materials, EarlyView.Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost +4 more
wiley +1 more source
, 2018 We demonstrate in the present study that self-consistent calculations based on the self-energy functional theory (SFT) are possible for the electronic structure of realistic systems in the context of quantum chemistry. We describe the procedure of a self-
Furukawa, Yoritaka +3 more
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