Results 101 to 110 of about 188,169 (284)
Unidentified Infrared Emission Features in Mid-infrared Spectrum of Comet 21P/Giacobini-Zinner [PDF]
, 2019 Comet 21P/Giacobini-Zinner (hereafter, comet 21P/G-Z) is a Jupiter-family comet and a parent comet of the October Draconids meteor shower. If meteoroids originating from a Jupiter-family comet contain complex organic molecules, such as amino acids, they are essential pieces of the puzzle regarding the origin of life on Earth.
arxiv +1 more source
The Evolving Activity of the Dynamically Young Comet C/2009 P1 (Garradd)
, 2014 We used the UltraViolet-Optical Telescope on board Swift to observe the dynamically young comet C/2009 P1 (Garradd) from a heliocentric distance of 3.5 AU pre-perihelion until 4.0 AU outbound.
A'Hearn, M. F. +6 more
core +1 more source
Analysis of Hysteresis in the Regime Transition of Cocurrent Liquid–Gas Flow
steel research international, Volume 93, Issue 12, December 2022., 2022 Fluid dynamics of a cocurrent liquid–gas flow are studied by numerical simulations, and hysteresis in regime transition from bubbly to annular flow and vice versa is explained based on the variation of vortical energy in each phase and history of different enstrophy generation/destruction mechanisms.
Mahdi Saeedipour, Stefan Pirker
wiley +1 more source
Redes sociales y acción colectiva.
REDES: Revista Hispana para el Análisis de Redes Sociales, 2007 Reseña: Varanda, M. (2005). La réorganisation du commerce d’un centre-ville: Résistances et obstacles à l’action collective. Paris: Ed. L’Harmattan.
Comet, Catherine
doaj +3 more sources
Comets in Australian Aboriginal Astronomy [PDF]
arXiv, 2010 We present 25 accounts of comets from 40 Australian Aboriginal communities, citing both supernatural perceptions of comets and historical accounts of bright comets. Historical and ethnographic descriptions include the Great Comets of 1843, 1861, 1901, 1910, and 1927.
arxiv
Review of cometary spectra [PDF]
The spectra of comet Kohoutek, comet Bradfield, and comet Mrkos are reviewed and compared in relation to stellar spectroscopy and evolution. The possibility of observing the absorption spectrum of a comet and direct measurement of Doppler shifts due to ...
Herbig, G. H.
core +1 more source
EPOXI Mission: Comet on a Stick [PDF]
, 2009 In this activity, students examine their concepts of a comet by designing and building a model. The goal is to have students replicate the scientific processes of observing, modeling, forming an explanation, making new observations, and revising. In this
John Risvey
core
Promising Prodiginins Biological Activities
Chemistry &Biodiversity, EarlyView.ABSTRACT Prodiginins are a large family of at least 34 pyrrolic compounds, including the well‐studied red pigment prodigiosin. Prodiginins are produced by several microorganisms displaying broad biological activities, including antimicrobial, antiviral, antiparasitic, antiproliferative, and immunosuppressive activities.
María F. Ladetto +6 more
wiley +1 more source
steel research international, Volume 93, Issue 12, December 2022., 2022 The experimental data of a 1:3 water model of a continuous caster presented herein show the strong influence of phase distribution in the submerged entry nozzle (SEN) on the pressure distribution in the SEN and on the stopper position. These findings are based on the influence of the wetting conditions of the SEN walls and on a hysteresis effect ...
Maria Thumfart +2 more
wiley +1 more source
Near-Earth Asteroids as Possible Parent Bodies of Meteor Streams [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The genetic relationship of meteor streams with near-Earth asteroids (NEAs) is being actively studied. A genetic link with the asteroid is possible only for streams in which meteoroids have the geocentric speed smaller than 50 km/s, thereby meaning the ...
M.G. Sokolova, M.V. Sergienko
doaj