Results 11 to 20 of about 6,236,563 (298)

Diffraction line profiles of spherical hollow nanocrystals

open access: yesNanomaterials and Nanotechnology, 2019
An analytical expression of diffraction line profiles of spherical hollow nanocrystals (NCs) is derived. The particular features of the profile lines, enhanced peak tail intensity, are analyzed and discussed as a function of the NC size parameters (outer
Emiliano Burresi, Leander Tapfer
doaj   +2 more sources

Phase-Dependent Line Profiles of VV CEP [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1992
The normalized line profiles of VV Cep have been calculated by integrating the equation of transfer. The Sobolev theory was adopted and the wind velocity distribution was assumed to be V(r)=Vāˆž(1-Rc/r)^(1/2). The peaks of the line profiles for the phase 0.
Kyung-Mee Kim, Kyu-Hong Choi
doaj   +1 more source

Line cascade of turbine profiles

open access: yesRUDN Journal of Engineering Research, 2010
An article presents a new method for designing the Line Cascade of turbine profiles.
L V Vinogradov
doaj   +1 more source

Line profiles in expanding envelopes [PDF]

open access: yes, 1979
An attempt is made to show how the physical and geometrical parameters prevailing in an expanding stellar envelope can be inferred from an analysis of one or more observed line profiles. Attention is given to the Sobolev approximation, line formation in outwardly accelerating envelopes, effects of a stellar core, and radiative transfer in outwardly ...
Surdej, Jean
core   +3 more sources

Line Profile Variations in AGN [PDF]

open access: yesInternational Astronomical Union Colloquium, 1994
AbstractLine-profile variations in the Seyfert galaxies NGC 5548 and NGC 4593 are discussed. The variations of individual line segments are different from line to line and from outburst to outburst.
W. Kollatschny, M. Dietrich
openaire   +2 more sources

Natural line profile asymmetry

open access: yesPhysica Scripta, 2022
Abstract The paper discusses the line profile asymmetry of the photon scattering process that arises naturally in quantum electrodynamics (QED). Based on precision spectroscopic experiments conducted on hydrogen atoms, we focus our attention on the two-photon 1s āˆ’ 2s transition.
A Anikin, T Zalialiutdinov, D Solovyev
openaire   +2 more sources

Optical waveguide analysis using transmission lines [PDF]

open access: yes
Optical fibres have been used as a key medium for telecommunication and networking for more than two decades because in principle they offer sufficient transmission capacity, reaching total rates as high as Tbits/s per fibre.
Qian, Xin
core   +9 more sources

Line Profiles in the Bulge of NGC7217 [PDF]

open access: yesSymposium - International Astronomical Union, 1993
Line-of-sight velocity distributions are becoming increasingly important for our understanding of galactic structure. We present results obtained for the bulge of NGC7217 with a new deconvolution technique.
Konrad Kuijken, Michael R. Merrifield
openaire   +1 more source

Measurement of Line Profiles [PDF]

open access: yesSymposium - International Astronomical Union, 1986
The basic requirements for high precision spectral line profile measurements are reviewed, with the observatory at the University of Western Ontario serving to illustrate several of the points.
openaire   +1 more source

Epigenomic profiling of neuroblastoma cell lines [PDF]

open access: yesScientific Data, 2020
Abstract Understanding the aberrant transcriptional landscape of neuroblastoma is necessary to provide insight to the underlying influences of the initiation, progression and persistence of this developmental cancer. Here, we present chromatin immunoprecipitation sequencing (ChIP-Seq) data for the oncogenic transcription factors, MYCN
Upton, Kristen   +12 more
openaire   +5 more sources

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