Results 121 to 130 of about 199,190 (345)
, 2005 We present a very deep near-infrared spectroscopic observation of a strong Ly_alpha emitter at z=6.33, SDF J132440.6+273607, which we used to search for HeII 1640.
A. Marconi +14 more
core +1 more source
Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution
Advanced Engineering Materials, EarlyView.Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source
Analysis of high-latitude blue stars--III. Three emission-line stars [PDF]
, 1989 D. Kilkenny
openalex +1 more source
Accretion Properties of the Young Brown Dwarf 2MASS J08440915-7833457
The Astrophysical JournalWe present Hubble Space Telescope Cosmic Origins Spectrograph far-ultraviolet (FUV) and Space Telescope Imaging Spectrometer (STIS) optical observations toward the young accreting brown dwarf 2MASS J08440915-7833457 (J0844) from the UV Legacy Library of ...
Toni V. Panzera +4 more
doaj +1 more source
Quasi-emission lines in rotating B stars [PDF]
Monthly Notices of the Royal Astronomical Society, 1991 Theorical line profiles for rotating B stars have been calculated in an effort to explain recent observations of quasi-emission bumps in the cores of some absorption lines. It is found that, assuming the stellar atmospheres are in LTE, purely rotational effects alone cannot account for the observations.
openaire +1 more source
Advanced Engineering Materials, EarlyView.Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel +6 more
wiley +1 more source
A comparison of lyman alpha and HeI lambda 10830 line structure and variations in early-type star atmospheres [PDF]
Fabry-Perot interferometric profiles for fifty of the early-type stars including supergiants, eclipsing binaries, Bp and Ap stars, Be and shell stars, and variable stars have been obtained.
Meisel, D. D.
core +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen +3 more
wiley +1 more source
On Emission-Line Stars in the ζ SCULPTORIS Cluster [PDF]
, 1972 Howard E. Bond
openalex +1 more source