Results 41 to 50 of about 1,330 (187)

Direct Measurements of Dust Settling Velocity Under Low‐Density Atmospheres Using Time‐Resolved Particle Image Velocimetry

open access: yesGeophysical Research Letters, Volume 51, Issue 15, 16 August 2024.
Abstract Dust dynamics influence planetary atmospheres. However, the settling velocity of dust—and thus its residence time in the atmosphere—is often mispredicted. Challenging, indirect experiments involving few ideal particles revealed that dust settling velocity deviates from Stokes' law under rarefied atmospheres.
Carlos A. Alvarez   +5 more
wiley   +1 more source

Dust Emissions on Mars From Phoenix Lidar Measurements in Relation to Local Meteorological Conditions

open access: yesGeophysical Research Letters, Volume 51, Issue 14, 28 July 2024.
Abstract The diurnal cycle of dust aerosols on Mars is studied by analyzing lidar observations at the Phoenix landing site under cloud‐ and fog‐free conditions and in the absence of elevated, long‐range transported dust layers. There is a pronounced diurnal cycle in the dust‐layer height with minimum heights of 4–6 km occurring between 11:00 and 17:00 ...
M. Kahnert, R. Ceolato
wiley   +1 more source

One Martian Year of Near‐Surface Temperatures at Jezero From MEDA Measurements on Mars2020/Perseverance

open access: yesJournal of Geophysical Research: Planets, Volume 129, Issue 7, July 2024.
Abstract Measurements of ground and near surface atmospheric temperatures at Jezero obtained during 700 sols by the Mars Environmental Dynamics Analyzer (MEDA) characterize the thermal behavior of the near surface Martian atmosphere during a full Martian Year.
A. Munguira   +12 more
wiley   +1 more source

Sistemas de seguridad en autocares

open access: yes, 2008
Código de proyecto: IND 08122Marta Retortillo Iglesias / ; director de proyecto: Juan Carlos Sánchez RodríguezCurso 2008-2009Ingeniería Industrial (IND)Escuela Politécnica ...
Retortillo Iglesias, Marta
core  

Dust Accumulation and Lifting at the Landing Site of the Mars 2020 Mission, Jezero Crater, as Observed From MEDA

open access: yesGeophysical Research Letters, Volume 51, Issue 11, 16 June 2024.
Abstract We quantify the effect of dust accumulation at Jezero crater by means of a Dust Correction Factor (DCF) for the solar radiation measured by the photodiodes of the Radiation and Dust Sensor of the Mars 2020 mission. After one Mars Year, dust on the photodiode surface attenuated 25%–30% of the incoming solar radiation.
A. Vicente‐Retortillo   +12 more
wiley   +1 more source

Tratado elemental de derecho internacional público

open access: yes, 1900
AntepPort.
Olivart, Ramón María de Dalmau Marqués de, 1861-1928
core  

Enclaves fortificados y poblamiento medieval en la Sierra del Águila (Hornachuelos): los castillos del «Comendador», de «Comares» y la torre de «Casa Fuerte»

open access: yes, 2022
Fieldwork, essential for historical research, is particularly complex in the Sierra del Águila area. The ruins of the Comendador and Comares castles and that of the Casa Fuerte tower are located in this area of difficult access.
Navarro Martínez, Emilio José
core   +1 more source

La evaluación, reconocimiento y acreditación de los aprendizajes no formales e informales en el ámbito universitario: elementos para el debate

open access: yesRevista Electrónica Interuniversitaria de Formación del Profesorado, 2011
En los últimos tiempos, la posibilidad de acreditar oficialmente la formación no reglada y la experiencia laboral de los trabajadores se ha ido insertando en la estructura sociolaboral de los principales países europeos.
Álvaro RETORTILLO OSUNA
doaj  

El nivel educativo como factor de inclusión social de la población inmigrante desde la perspectiva de la aculturación

open access: yesRevista Interuniversitaria de Formación del Profesorado, 2010
En el presente artículo se muestran los resultados de una investigación que prueba la relación existente entre el nivel educativo de la población inmigrante y los procesos de inclusión social que experimenta este colectivo.
Álvaro Retortillo Osuna
doaj  

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