- groupements de defense contre les organismes nuisibles vegetaux3042
- portable antiquities of the netherlands1292
- adc archeoprojecten577
- daniele revel487
- gj de roller374
- pascal fort361
- archaeological research en consultancy349
- m stiekema348
- klaus graf320
- em ten broeke265
- m hanemaaijer265
- rm van der zee257
- j huizer248
- j ras236
- j holl221
- aj wullink218
- ea schorn216
- a de boer211
- herve piegay204
- jhf leuvering187
Potentials of images from geostationary satellite for the assessment of solar energy parameters
International audience Images taken by meteorological geostationary satellites are currently used to map global radiation. Several methods exist which process these images. Among them, the Heliosat method ranks as one of the most accurate and one of the easiest to use. Typical uncertainties (rms.) o...
Groundwater contamination by pesticides and their metabolites: intrinsic properties and hydrodynamic constraints
International audience Enhanced groundwater monitoring has highlighted the contamination by pesticides and their metabolites which can be more problematic than parent compounds. The fate of pesticides has widely been studied in soil, where major processes such as sorption and degradation lead to red...
Secure Distributed MapReduce Protocols : How to have privacy-preserving cloud applications?
In the age of social networks and connected objects, many and diverse data are produced at every moment. The analysis of these data has led to a new science called "Big Data". To best handle this constant flow of data, new calculation methods have emerged.This thesis focuses on cryptography applied...
Petrology and bulk chemistry of Yamato-82094, a new type of carbonaceous chondrite
International audience Carbonaceous chondrites are classified into several groups. However, some are ungrouped. We studied one such ungrouped chondrite, Y-82094, previously classified as a CO. In this chondrite, chondrules occupy 78 vol%, and the matrix is distinctly poor in abundance (11 vol%), com...
A New Optical Density Granulometry-Based Descriptor for the Classification of Prostate Histological Images Using Shallow and Deep Gaussian Processes
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A human-driven decline in global burned area
International audience Fire is an essential Earth system process that alters ecosystem and atmospheric composition. Here we assessed long-term fire trends using multiple satellite data sets. We found that global burned area declined by 24.3 ± 8.8% over the past 18 years. The estimated decrease in bu...
Distributed Algorithm to Locate Critical Nodes to Network Robustness based on Spectral Analysis
We propose an algorithm to locate the most critical nodes to network robustness. Such critical nodes may be thought of as those most related to the notion of network centrality. Our proposal relies only on a localized spectral analysis of a limited subnetwork centered at each node in the network. We...
Global biogeographical regions of freshwater fish species
Aim To define the major biogeographical regions and transition zones for freshwater fish species. Taxon Strictly freshwater species of actinopterygian fish (i.e. excluding marine and amphidromous fish families). Methods We based our bioregionalization on a global database of freshwater fish species...
Strategic areas and network effects in risk systems
Territories are innervated by a multitude of networks on which modern lifestyles have been built up as well as the functioning of society as a whole; such dependence of society towards them is coupled with an interdependence between those territories, in view of the fact that because of their struct...
Application of Some Natural Porous Raw Materials for Removal of Lead and Zinc from Aqueous Solutions
This chapter discusses the adsorption of lead and zinc ions onto a natural zeolite (clinoptilolite) and zeolite bearing tuff (stilbite) from aqueous solution, whereby the main parameters were the effects of initial pH of solution, mass of adsorbent, and initial metal concentration in solution.
Experimental Constraints on Sulphur Behaviour in Subduction Zones: Implications for TTG and Adakite Production and the Global Sulphur Cycle since the Archean
International audience We performed crystallization experiments at 2-3 GPa at 700-950°C on basaltic and pelitic lithologies with added water and sulphur to constrain the factors controlling sulphur behaviour in subduction zones and how it may have varied through geological time. The resulting hydrou...
Monitoring trucks to reveal Belgian geographical structures and dynamics: From GPS traces to spatial interactions
International audience Despite the fact that freight transport has a huge impact on the economy and the environment, datasets have always been scarce or restricted to very small a-spatial samples. We here aim at diverting spatial data collected in Belgium for tolling trucks proportionally of their u...
Newton Advanced Fellowships (18 March 2015)
Newton Advanced Fellowships - now open for applications. Fellowships are available for either one year or two years and each award provides up to £37,000 per year Closing date: 18 March 2015. http://ht.ly/IdReZ
The trace of times. Socio-ecological complexes through the prism of landscape analysis. For an involved environmental geography
This dissertation constitutes the core of a Habilitation to supervise research (HDR) in geography and planning. It is an original text whose guiding principle is to contribute to an involved environmental geography. In it, I explain the importance of using time and history to deal with environmental...
Industrial Sprays: Experimental Characterization and Numerical Modeling
Industrial Sprays: Experimental Characterization and Numerical Modeling
Climatic trends in avalanche activity since the Little Ice Age in a temperate low altitude mountain range
The Arctic: Opportunities, Concerns and Challenges
International audience The Arctic is often thought of as the land of polar bears and explorers. There are already several industries operating in the Arctic, through the Arctic, or at the periphery of the Arctic Circle. Receding and thinning sea ice with climate change provides increased access to n...
Exploration of the Deep-Sea Fauna of Papua New Guinea
Little is known of New Guinea's deep benthic communities. In fall 2010, the Museum national d'Histoire naturelle, Institut de Recherche pour le Developpement, and University of Papua New Guinea spearheaded an international three-leg cruise, BioPapua, aimed at exploring the deep waters of eastern Pap...
Thriving of hyperthermophilic microbial communities from a deep-sea sulfidic hydrothermal chimney under electrolithoautotrophic conditions with nitrate as electron acceptor
Abstract Recent studies have shown the presence of an abiotic electrical current across the walls of deep-sea hydrothermal chimneys, allowing the growth of electroautotrophic microbial communities. To understand the role of the different phylogenetic groups and metabolisms involved, this study focus...
Urban landscape selection by Eurasian collared dove (Streptopelia decaocto) in eastern Spain
ABSTRACT The Eurasian collared dove (Streptopelia decaocto) is an invasive species, and its distribution is continuously on the increase. Today its expansion has spread to the American continent. In this study we describe the effects of the urban environment on the Eurasian collared dove in eastern...
Retinoic acid signaling affects cortical synchrony during sleep.
Delta oscillations, characteristic of the electroencephalogram (EEG) of slow wave sleep, estimate sleep depth and need and are thought to be closely linked to the recovery function of sleep. The cellular mechanisms underlying the generation of delta waves at the cortical and thalamic levels are well...
Experimental investigation and CFD modelling of flow, sedimentation, and solids separation in a combined sewer detention tank
International audience The lack of knowledge about particle behavior in combined sewer detention tanks remains a significant difficulty for the design of these works. In this paper, the use of 3D computational fluid dynamics (CFD) is investigated for studying flow, sedimentation, and solids separati...
What can we learn from the case studies?
International audience This summary presents a global and comparative analysis of the seven events presented in this thematic issue. It is based on an analysis of the consequences of these events; the updating of structural or conjunctural vulnerabilities causing such events; and the impacts, on the...
The Middle Palaeolithic site Lingjing (Xuchang, Henan, China): preliminary new results
International audience Lingjing is an open-air archaic hominin site in northern China where, apart from two incomplete Human skulls, thousands of lithic artefacts as well as abundant, well-preserved mammalian remains with and OSL ages ranging between ≈105 ka and ≈125 ka. It has been excavated yearly...
Mapping Burned Forest Recovery Using Time-Series Satellite Images
To satisfy the monitoring technology needs for the long-term effect on forest growth and restoration by forest fires, the burned forest area formed in May 6, 1987 in the Great Xingu2019an Mountain of China has been selected as the experimental area. Based on the selected time-series of Landsat TM/ET...