Results 11 to 20 of about 888 (181)
New Cable Delay Measurement System for VGOS Stations [PDF]
Sensors, 2022 This paper presents the new cable delay measurement system (CDMS) designed at Yebes Observatory (IGN, Spain), which is required for the VLBI Global Observing System (VGOS) stations.
Pablo García-Carreño +6 more
doaj +2 more sources
Movilidad urbana y redes biológicas sistémicas
Dearquitectura, 2012 Due to the constant increase of methods of transportation, people, and reasons for travel, the improving of urban transportation is considered to be one of the principle challenges in developing local areas world over. Given that the space available has not increased in a manner that is proportional to its elements, a tension has resulted that involves
Andrés Hernando Valencia Escobar +3 more
exaly +3 more sources
A Tri-Band Cooled Receiver for Geodetic VLBI
Sensors, 2021 This paper shows a simultaneous tri-band (S: 2.2–2.7 GHz, X: 7.5–9 GHz and Ka: 28–33 GHz) low-noise cryogenic receiver for geodetic Very Long Baseline Interferometry (geo-VLBI) which has been developed at Yebes Observatory laboratories in Spain.
José A. López-Pérez +16 more
doaj +1 more source
Los Mapas de Perímetros y el Avance Catastral de la Junta General de Estadística (1866-1868)
Estudios Geográficos, 2023 El cambio de modelo económico, social y político que se estaba produciendo en España a mediados del siglo XIX exigía una información geográfica precisa que sirviera de base para modernizar el país.
Andrés Arístegui Cortijo +1 more
doaj +1 more source
Análisis de la sostenibilidad de las alternativas de movilidad urbana en Tuxtla Gutiérrez, Chiapas
ESPACIO I+D: Innovación más Desarrollo, 2022 En los últimos años ha cobrado interés la demanda de movilidad en el entorno urbano. La alta dependencia de movilidad y el uso intensivo del coche en zonas urbanas es motivo de estudio creciente porque esto conduce a los sistemas de transporte a ...
J. Alejandro Ruiz Sibaja +2 more
doaj +1 more source
Port Authority of Cartagena: Evidence of a Sustainability Balanced Scorecard
Sustainable Development, Volume 31, Issue 5, Page 3761-3785, October 2023., 2023 Abstract This paper provides a deeper understanding to the development and implementation of a Sustainability Balanced Scorecard in the Port Authority of Cartagena, under exploratory research. Open‐access documents available on different websites were used as data sources combined with semi‐structured personal interviews, which took place at the ...
Carlos Suárez‐Gargallo +1 more
wiley +1 more source
Understanding Population Decline Trajectories in Spain using Sequence Analysis
Geographical Analysis, Volume 55, Issue 4, Page 495-516, October 2023., 2023 Population decline is a key contemporary demographic challenge. Previous work has measured the national extent of population decline, and we know that it is more acute in Japan and Eastern Europe and is set to accelerate across many industrialized countries.
Miguel González‐Leonardo +2 more
wiley +1 more source
Ciudades, 2021 After an introduction on the main morphogenetic features of rural space, this article presents some typical morphological problems in small rural municipalities, such as the situations we have called semi-urban blocks, linear formations or large urban ...
Eduardo De Santiago Rodríguez +1 more
doaj +1 more source
Meteoritics &Planetary Science, Volume 58, Issue 10, Page 1512-1539, October 2023., 2023 Abstract The Tabernas–Alhabia Basin is a structural depression situated in the province of Almería, southeastern Spain. The basin is filled with Neogene, Pliocene, and Pleistocene sediments resting discordantly on a Paleozoic metamorphic basement. During the marine Tortonian sedimentation, a bed of breccia (Gordo megabed) was formed.
Sebastián Tomás Sánchez Gómez +6 more
wiley +1 more source
Rural problems, policies and possibilities in a post‐urban world
Regional Science Policy &Practice, Volume 15, Issue 4, Page 717-728, May 2023., 2023 Abstract Based on a historical overview of spatial networks and mobility, and the development of spatial theory, this review discusses current rural problems in Europe and the need for a new rural policy. The development toward a post‐urban world, that is, a world where the traditional urban–rural dichotomy is dissolving and is replaced by city‐regions
Hans Westlund, Kamila Borsekova
wiley +1 more source