Search results for "terre"
showing 10 items of 655 documents
Recherches sur la pluviométrie de la corne orientale de l'Afrique
1991
The Eastern Horn of Africa (Somalia, Ethiopia, Djibouti and Kenya) exhibits strong rainfall anomalies, considering the latitudinal position of the region. The mean annual rainfall map shows a vigorous meridian contrast between the rainy Western Highlands of Kenya and Ethiopia, and the deficiency of the lowlands of Somalia, the Eastern parts of Kenya and Ethiopia, and the Red Sea coast. This opposition is mainly related to the northern summer season, during which the different caracteristics of the wet "west-african" monsoon and the dry divergent "indian" monsoon are clearly emphasized. They induce single-maximum summer rainfall regimes, and double-peak spring and autumn regimes, respectivel…
Construcción de una tipología rural/urbana para los municipios españoles
2016
[ES] Este artículo pretende establecer criterios para delimitar de modo riguroso qué es lo que constituye un territorio rural o urbano, dadas las limitaciones de las metodologías tradicionales. En segundo lugar, se propone una tipología rural/urbana a escala municipal para España tomando en consideración tres criterios: la demografía —combinando densidades con umbrales mínimos de población— la información sobre coberturas y usos del suelo y el grado de accesibilidad desde el mundo rural a las ciudades. El resultado es el establecimiento de seis tipos distintos de municipios.
Tight-binding study of the optical properties of GaN/AlN polar and nonpolar quantum wells
2009
The electronic structure of wurtzite semiconductor superlattices (SLs) and quantum wells (QWs) is calculated by using the empirical tight-binding method. The basis used consists of four orbitals per atom (sp3 model), and the calculations include the spin-orbit coupling as well as the strain and electric polarization effects. We focus our study on GaN/AlN QWs wells grown both in polar (C) and nonpolar (A) directions. The band structure, wave functions and optical absorption spectrum are obtained and compared for both cases.
Community Turnover of Wood-Inhabiting Fungi across Hierarchical Spatial Scales
2014
For efficient use of conservation resources it is important to determine how species diversity changes across spatial scales. In many poorly known species groups little is known about at which spatial scales the conservation efforts should be focused. Here we examined how the community turnover of wood-inhabiting fungi is realised at three hierarchical levels, and how much of community variation is explained by variation in resource composition and spatial proximity. The hierarchical study design consisted of management type (fixed factor), forest site (random factor, nested within management type) and study plots (randomly placed plots within each study site). To examine how species richne…
Por el Real Monasterio Benedictino Cisterciense de Nuestra Sra. de Poblèt ... Fray Geronimo Villar ... Presidente mayor de la Real Casa Priorato de …
1750
Signat al final: "D. Joaquin Antonio Salon" Port. orlada Escut calc. del Monestir de Poblet a la port Caplletra ornada al començament del text Sign.: [ ]1, [A]2, B-C2, E-F2 Notes al marge i envoltant el text Reclams
3D survey and modelling of the main portico of the Cathedral of Monreale
2018
3D survey and modelling of Cultural Heritage allow to store a great deal of 3D data that can be managed for different purposes. 3D models can be used for documentation, restoration and knowledge of historic architectures and monuments. In this work, a 3D survey of the main portico of the Cathedral of Monreale (Palermo, Italy) was carried out. The paper presents the data acquisition process and the 3D modelling phase. The work is aimed to reconstruct a 3D model that could be used also to set up an HBIM (Heritage or Historic Building Information Modelling) of the main portico. The result of this study could be considered as a first test to implement an HBIM platform for the whole monumental c…
Near Real-Time Modelling of Regional Scale Soil Erosion Using AVHRR and METEOSAT Data: A Tool for Monitoring the Impact of Sediment Yield on the Biod…
2005
List of Contributors. Preface. 1. Spatial Modelling of the Terrestrial Environment: The Coupling of Remote Sensing with Spatial Models (Richard E.J. Kelly, Nicholas A. Drake and Stuart L. Barr). PART I: HYDROLOGICAL APPLICATIONS. Editorial: Spatial Modelling in Hydrology (Richard E.J. Kelly). 2. Modelling Ice Sheet Dynamics with the Aid of Satellite Derived Topography (Jonathan L. Bamber). 3. Using Remote Sensing and Spatial Models to Monitor Snow Depth and Snow Water Equivalent (Richard E. J. Kelly, Alfred T. C. Chang, James L. Foster and Dorothy K. Hall). 4. Using Coupled Land Surface and Microwave Emission Models to Address Issues in Satellite--Based Estimates of Soil Moisture (Eleanor J…
The Modern Strategies in the Cyber Warfare
2018
As there is no generally accepted definition for cyber warfare, it is a term that is quite liberally used in describing events and actions in the digital cyber world. The concept of cyber warfare became extremely popular from 2008 to 2010, partly superseding the previously used concept of information warfare which was launched in the 1990s. For some, cyber warfare is war that is conducted in the virtual domain. For others, it is a counterpart to conventional “kinetic” warfare. According to the OECD’s 2001 report, cyberwar military doctrines resemble those of so-called conventional war: retaliation and deterrence. Researchers agree with the notion that the definition of cyberwar should addre…
Cross-border Cultural Cooperation as the Principle Paradiplomacy Form: Evidence from the Czech-Polish Borderland
2021
Microprojects are an important part of Interreg programmes. This article presents areas of cooperation and categories of actors who have been active in submitting and implementing these microprojects in the Czech-Polish borderland. It identifies 11 thematic areas of microprojects, which mainly support people-to-people projects in the field of culture. The most active microproject actors are local govern-ments, while the participation of non-public sector actors has generally rather stagnated since 2004. Cross-border cooperation, based on the use of microproject schemes, is a decisive part of the paradip-lomacy of small and medium-sized municipalities in the Czech-Polish borderland. The rol…
Photobiology in space: An experiment on Spacelab I
1984
The joint European/US Spacelab Mission I, scheduled for October 1983 for a 9 day lasting Earth-orbiting flight, provides a laboratory system for various disciplines of science, including exobiology. On the pallet, in the experiment ES 029 "Microorganisms and Biomolecules in Space Hard Environment" 316 dry samples of Bacillus subtilis spores will be exposed to space vacuum and/or selected wavelenghs of solar UV radiation. After recovery action spectra of inactivation, mutation induction, reparability and photochemical damage in DNA and protein will be determined. The results will contribute to the understanding of the mechanism of the increased UV sensitivity of bacterial spores in vacuo and…