Results 71 to 80 of about 266,041 (145)

El ushnu y la organización espacial astronómica en la sierra central del Chinchaysuyu

open access: yesEstudios Atacameños
El ushnu inca tuvo gran importancia en la dominación ideológica en los wamani del Chinchaysuyu. Este artículo ofrece nuevas interpretaciones basadas principalmente en evidencias encontradas en Huánuco Pampa y otros tampus de la sierra central. Se propone
José Luis Pino M
doaj   +1 more source

The 1948 solar eclipse and the genesis of radio astronomy in Victoria [PDF]

open access: yes, 2004
In the early years of radio astronomy, solar eclipses played a critical role in establishing the sources of solar radio emission. During the half decade from 1945, Australia emerged as a leading nation in radio astronomy, with most of the observations ...
Orchiston, Wayne
core   +1 more source

Bernstein Operational Matrix Approach for Integro-Differential Equation Arising in Control theory

open access: yesNonlinear Engineering, 2014
The aim of this paper is to propose an efficient numerical method for solving the integro-differential equations arising in many braches of sciences using Bernstein polynomials.
Irfan Nagma, Kumar Sunil, Kapoor Saurabh
doaj   +1 more source

Women in Astronomy (Free Astronomy Public Lectures)

open access: yes, 2014
Scientific literacy is required if we want our global society to succeed, but for a variety of reasons, science isn't a passion for most people, and most of the people in science are stereotypical white men.
Pamela Gay
core   +1 more source

Nineteenth century astronomy at the US Naval Academy [PDF]

open access: yes, 2002
During the 1850s the newly-formed U.S. Naval Academy in Annapolis, Maryland, acquired a small observatory featuring a 19.7-cm (7.75-in.) Clark refractor, transit telescopes, and an astronomical clock.
Shankland, Paul D., Orchiston, Wayne
core   +1 more source

Precision Engineering behind European Astronomy Programmes [PDF]

open access: yes, 2011
The fields of astronomy science have presented significant precision engineering challenges. Numerous solutions for these fields of science have achieved unprecedented levels of accuracy, sensitivity and sheer scale.
Shore, Paul, Tonnellier, Xavier
core   +2 more sources

Commercial and Sublime: Popular Astronomy Lectures in Nineteenth Century Britain [PDF]

open access: yes, 2015
This thesis discusses the practitioners, sites, curriculums, apparatus and audiences of popular astronomy lecturing in nineteenth-century Britain. Lecturers who were active approximately between 1820 and 1860 are the focus.
Huang, H-F
core  

Longitude

open access: yesThe Encyclopedia of the History of Science, 2021
Rebekah Higgitt
doaj   +2 more sources

The Past and Present State of Astronomy Education in Thailand

open access: yes, 1990
About 300 years ago in Lopburi and Ayudhaya, many astronomical observatories were designed, constructed, and supported by the Roman Catholic missionaries from Europe and by King Narai the Great of Siam (Thailand). The interesting recorded history of Thai
Vanichai, Yupa
core  

Application of Wavelet Transform for Image Denoising of Spatially and Time Variable Astronomical Imaging Systems

open access: yesActa Polytechnica, 2011
We report on our efforts to formulate algorithms for image signal processing with the spatially and time variant Point-Spread Function (PSF) and inhomogeneous noise of real imaging systems.
M. Blažek, E. Anisimova, P. Páta
doaj  

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