Results 1 to 10 of about 596 (160)

Geodesia dallo spazio

open access: yesGEOmedia, 2005
L’utilizzo di satelliti per scopi geodetici non è recente, anzi addirittura antecedente all’inizio “ufficiale” dell’era spaziale, inizio marcato dal lancio del satellite Sputnik 1 nell’Ottobre del 1957.
Fabrizio Bernardini
doaj   +4 more sources

Introduction pages, Nova Geodesia 3(2), 2023

open access: yesNova Geodesia, 2023
Nova Geodesia (https://novageodesia.ro), Issue 2, Volume 3, 2023: The papers published in this issue represent interesting novelties in different topics of geodetic science or related fields.
Paul SESTRAS
doaj   +2 more sources

Geodesia no Brasil na passagem do século XIX e XX

open access: yesRevista Brasileira de História da Ciência, 2022
Este texto é uma síntese de pesquisas realizadas na área de história da astronomia ao longo de mais de 15 anos. Tem como objetivo apresentar a geodesia, ciência pouco explorada no âmbito da história da ciência, na sua relação com a formação do ...
Moema Vergara
doaj   +1 more source

Trazado de rayos para señales de satélites GPS: aproximación cuasi-longitudinal

open access: yesGeofísica Internacional, 1992
En este trabajo se realiza un trazado de rayos en la ionosfera terrestre para las señales emitidas por los satélites del Sistema de Posicionamiento Global (GPS), cuyas frecuencias de transmisión son Ll = 1515 MHz y L2 = 1228 MHz.
G. A. Mansilla   +4 more
doaj   +1 more source

"Entre a pedra e a estrela": astronomia e geodesia no Romance d'A Pedra do Reino e o Príncipe do Sangue do Vai-e-Volta

open access: yesVeredas, 2017
A análise astronômica do céu durante episódios-chave do grande romance de Ariano Suassuna aponta para uma minuciosa alegorização de certos planetas e constelações zodiacais.
Érico Melo
doaj   +1 more source

Recent Progress in Short and Mid-Infrared Single-Photon Generation: A Review

open access: yesOptics, 2023
The generation of single photons in the mid-infrared spectral region is attracting the interest of scientific and technological research, motivated by the potential improvements that many important and emerging applications, such as quantum sensing ...
Arianna Elefante   +6 more
doaj   +1 more source

The role of GIS in urban seismic risk studies: application to the city of Almería (southern Spain) [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2013
This work describes the structure and characteristics of the geographic information system (GIS) developed for the urban seismic risk study of the city of Almería (southern Spain), identifying the stages in which the use of this tool proved to be very ...
A. Rivas-Medina   +3 more
doaj   +1 more source

Launching Nova Geodesia Journal

open access: yesNova Geodesia, 2021
Geodesy is the science of measuring and representing the earth, whose beginnings are ancient and are found in antiquity. Like other disciplines, it has known a continuous evolution, along with the evolution of human society and the development of knowledge.
openaire   +2 more sources

Advances in Mid-Infrared Single-Photon Detection

open access: yesPhotonics, 2022
The current state of the art of single-photon detectors operating in the mid-infrared wavelength range is reported in this review. These devices are essential for a wide range of applications, such as mid-infrared quantum communications, sensing, and ...
Stefano Dello Russo   +6 more
doaj   +1 more source

A Deep Learning-Based Solution for Large-Scale Extraction of the Secondary Road Network from High-Resolution Aerial Orthoimagery

open access: yesApplied Sciences, 2020
Secondary roads represent the largest part of the road network. However, due to the absence of clearly defined edges, presence of occlusions, and differences in widths, monitoring and mapping them represents a great effort for public administration.
Calimanut-Ionut Cira   +3 more
doaj   +1 more source

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