Results 71 to 80 of about 10,147,794 (297)
Pirineos: Revista de Ecología de Montaña, 1999 [es] Durante estos últimos 50 años ha tenido lugar un abandono de las masías y de los cultivos tradicionales en los Prepirineos catalanes. En este trabajo se han estudiado los cambios de usos del suelo desde los años 50 hasta la actualidad en una cuenca
J. M. Ubalde, J. Rius, R. M. Poch
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III. Utilisation des bassins-versants d'investigation hydrologique par l'étude de l'érosion du sol
, 1966 Fournier F. III. Utilisation des bassins-versants d'investigation hydrologique par l'étude de l'érosion du sol. In: Bulletin de l'Association de géographes français, N°348-349, 43e année, Novembre-décembre 1966. pp.
Fournier, Fernand
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Preparation of sub-micron PZT particles with the sol-gel technique [PDF]
, 2006 This paper describes the production of Pb1.0Zr0.9Ti0.1 ceramic powder, by using metal organic precursors as starting materials. In this study polyvinylpyrrolidone, PVP, was used to create a PZT–PVP sol and then also added as a secondary stage to control ...
Alcock, Jeffrey R. +2 more
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Moiré Phase Mapping in Twisted Bilayer Liquid Crystals with Reconfigurable Light Polarization States
Advanced Materials, EarlyView.Twisted bilayer liquid crystals are developed by vertical stacking assembly of two liquid crystals having designer domains and optical properties. These moiré‐symmetry, twisted liquid crystals demonstrate reconfigurable polarization states, moiré patterns and phases controlled by twist angles, providing a route to design active optical devices for ...
Jordan A. Wilson +7 more
wiley +1 more source
, 1980 Taillefer François. Deux cartes de l'utilisation agricole du sol en France : Utilisation agricole du sol en France. Première moitié du XXe siècle. Seconde moitié du XXe siècle.
Taillefer, François
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Advanced Materials, EarlyView.Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski +5 more
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Revue de Primatologie, 2016 Les centres fournisseurs et utilisateurs de primates non-humains (PNH) à des fins scientifiques hébergent les animaux dans des conditions adaptées à leur statut sanitaire et leur rôle ponctuel (reproduction, élevage, stabulation, en étude) tout en ...
Helen Beyer +2 more
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Changements climatiques et utilisation durable du sol en montagne
, 2012 The research project MOUNTLAND addresses the impacts of climate- and land-use changes on the provision of ecosystem services in mountain regions. The project applies an integrative approach by combining field experiments, ecological modeling, land-use modeling and the analysis societal and political decision making processes.
Huber, Robert +9 more
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Advanced Materials Interfaces, EarlyView.A bulk activation route to produce nanoporous carbons for atmospheric water harvesting by incorporating potassium hydroxide during resorcinol‐formaldehyde polycondensation. These high‐oxygen sorbents deliver daily water yields up to 23 L kg−1 day−1 with great cyclability, providing a scalable solution for water production in diverse climates.
SeyedEmad AlaviTabari +5 more
wiley +1 more source
Analyse de la variabilité spatiale de propriétés du sol au sein de trois unités cartographiques
, 1989 International audienceOn a 5600 ha area of a 1/25 000 soil map From Brittany (France), the variability within the three major mapping units is studied. Sampling and data analysis at several lags of distance have allowed to quantify variability within the
Walter, Christian
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