Results 111 to 120 of about 3,849 (269)

A Mathematical Model for Simulating Meteor Showers

open access: yesTrends in Computational and Applied Mathematics, 2019
This paper presents a mathematical model to simulate the trajectory of a meteor as seen by a single observer located anywhere on Earth. Our strategy is to define a new coordinate system, called Radiant Coordinate System, which is centered on the observer
Marcos Cardinot, Anderson Namen
doaj   +1 more source

Finetuning Pre‐Trained Language Models for Automatic Assessment of English‐Chinese Interpreting

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Recent years have seen growing interest in leveraging pre‐trained language models (PLMs) for automatic assessment of spoken‐language performance. Contributing to this emerging line of work, the present study offers the first attempt to finetune two PLMs, GTE‐multilingual and mmBERT, for assessing English‐Chinese interpreting, using over 1700 ...
Zhaokun Jiang, Chao Han
wiley   +1 more source

Extra-Terrestrial Meteors

open access: yes, 2019
International audienceAll planets and satellites of our solar system are subject to acontinuous rain of material, ranging in size from specks of dust toobjects the size of boulders. Upon impact, these objects deposit theirkinetic energy into the incident
Hueso, Ricardo   +4 more
core   +2 more sources

Mare versus highland lunar impact flash light curve dichotomy

open access: yesAstronomy & Astrophysics
We performed a comprehensive analysis of lunar impact flash (LIF) light curve shapes and their dependence on the lunar terrain, using the large sample of LIFs detected by NELIOTA over the last 9 years. We classified 124 multi-frame light curves into mare,
Athanasopoulos D.   +7 more
doaj   +1 more source

DOUBLE STATION OBSERVATION OF METEORS WITH LOW BASELINE IN MYKOLAIV

open access: yesOdessa Astronomical Publications, 2017
Results of single and double station observations  of  meteors  using  TV  CCD  techniques  which were  conducted  in  2013-2016  in  Mykolaiv  astronomical observatory (RI MAO) are shown in the article.
M. O. Kulichenko   +2 more
doaj   +1 more source

Characteristic Features of the Colors of Shower Meteors and Sporadic Meteors from Observations with the Mini-MegaTORTORA System

open access: yes, 2019
© 2019, Pleiades Publishing, Ltd. Results of BV R observations of meteors in the Perseid, Taurid, Orionid, Geminid, and Lyrid showers, as well as sporadic meteors, carried out with the Mini-MegaTORTORA system are presented.
Sokolova M., Usanin V., Nefedyev Y.
core  

Multidimensional Militarisation, Evidence From Mexico's War on Drugs

open access: yesInternational Social Science Journal, EarlyView.
ABSTRACT This article documents different dimensions of militarisation observed in Mexico since the start of the war on drugs. It argues that militarisation is a multidirectional phenomenon that is characterised by rationales that justify the use of illegal means to address complex issues, promising expediency and efficiency but rarely delivering on it.
Agustin Hernandez Berea
wiley   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato   +2 more
wiley   +1 more source

Filter feeders living on suspension feeders: New insights into the lifestyle and distribution of Arcturidae Dana, 1849 (Crustacea: Isopoda) around Iceland

open access: yesMarine Ecology, EarlyView.
Abstract The focus of the present study was on arcturid isopods occurring in the subarctic region around Iceland. Data from two decades of sampling with an epibenthic sledge (EBS) during numerous expeditions of the BIOICE (Benthic Invertebrates of Icelandic Waters; 1992–2004) and IceAGE (Icelandic marine Animals: Genetics and Ecology; 2011—ongoing ...
Vivien Lukas Hartmann   +5 more
wiley   +1 more source

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