Results 81 to 90 of about 10,524 (236)
Brown dwarfs in wide-field surveys
EPJ Web of Conferences, 2011 In this invited talk, I briefly summarise early photometric and proper motion surveys carried out in the nearest and youngest open clusters to introduce the motivation behind the Galactic Cluster component of the UKIRT Infrared Deep Sky Survey ...
Lodieu N.
doaj +1 more source
Survival rates of planets in open clusters: the Pleiades, Hyades, and Praesepe clusters [PDF]
Astronomy & Astrophysics, 2018 Context. In clustered environments, stellar encounters can liberate planets from their host stars via close encounters. Although the detection probability of planets suggests that the planet population in open clusters resembles that in the field, only a
Y. Hori, M. Fujii
semanticscholar +1 more source
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract We used very high‐resolution satellite images to map the development of retrogressive thaw slumps (RTS) at six sites in the Russian High Arctic for the period 2011 to 2020. The 3,466 mapped RTS revealed an overall high activity, with site‐specific increases of RTS‐affected area up to +2,700% and RTS numbers up to +1,294%.
S. Barth +4 more
wiley +1 more source
Estimating quantitative forest attributes using Pleiades satellite data and non-parametric algorithms in Darabkola forests, Mazandaran [PDF]
تحقیقات جنگل و صنوبر ایران, 2015 Knowledge on quantitative forest attributes is a prerequisite for forest stand management. The aim of this study was to evaluate high resolution Pleiades data in estimating the standing volume and basal area using non-parametric algorithms in Darabkola ...
Mojgan Zahriban +3 more
doaj +1 more source
A New Pleiades Member at the Lithium Substellar Boundary [PDF]
, 1998 We present the discovery of an object in the Pleiades open cluster, named Teide 2, with optical and infrared photometry which place it on the cluster sequence slightly below the expected substellar mass limit. We have obtained low- and high-resolution spectra that allow us to determine its spectral type (M6), radial velocity and rotational broadening ...
arxiv +1 more source
Sustainable Development, Volume 33, Issue 2, Page 3099-3117, April 2025.Abstract The impacts of climate change‐induced heat stress on workers are most prevalent in sectors with decent work deficits and this requires consideration for sustainable development. This paper focuses on the informal economy of brick kilns in India, a sector reliant on piece‐rate payments to its migrant labour force.
Doreen S. Boyd +8 more
wiley +1 more source
Физико-химические аспекты изучения кластеров, наноструктур и наноматериаловThe application of 3D nanocrystalline materials obtained using the liquid-phase and solid-phase powder metallurgy technologies is one of the basic approaches to designing high-efficiency and low-cost thermoelectric energy converters.
A.V. Shishulin +2 more
doaj +1 more source
Earth and Space Science, 2021 Major faults of the Tien Shan, Central Asia, have long repeat times, but fail in large (Mw 7+) earthquakes. In addition, there may be smaller, buried faults off the major faults which are not properly characterized or even recognized as active. These all
Ruth M. J. Amey +7 more
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Toward a VLBI resolution of the Pleiades distance controversy [PDF]
, 2012 The Pleiades is the best studied open cluster in the sky. It is one of the primary open clusters used to define the `zero-age main sequence,' and hence it serves as a cornerstone for programs which use main-sequence fitting to derive distances. This role is called into question by the `Pleiades distance controversy' - the distance to the Pleiades from ...
arxiv +1 more source
Remote Sensing, 2018 In the dwindling natural mangrove today, mangrove reforestation projects are conducted worldwide to prevent further losses. Due to monoculture and the low survival rate of artificial mangroves, it is necessary to pay attention to mapping and monitoring ...
Dezhi Wang +5 more
semanticscholar +1 more source