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mercredi 29 octobre 2014

[hal-01075649] UN MATALOT CABUSSO DINS MIETERRANO PALINURO DE BRUNOUN DURAND

L'article évoque le recueil poétique de l'écrivain provençal Bruno Durand Lou camin roumiéu et en particulier le poème Palinuro L'étude fait le point sur son aspect intertextuel notamment par sa référence explicite à Virgile et à L'Enéide mais également sur les topoi romantiques qui structurent le textefrom...

[hal-01076338] Velocity-based Adaptivity of Deformable Models

A new adaptive model for viscoelastic solids is presented Unlike previous approaches it allows seamless transitions and simpli-fications in deformed states The deformation field is generated by a set of physically animated frames Starting from a fine set of frames and mechanical energy integration points...

[hal-01078506] Predictive control algorithm for spacecraft rendezvous hovering phases

The present article proposes a predictive control law for orbital rendezvous hovering phases The control consists of impulsive thrust corrections that maintain the relative motion between spacecraft bounded The proposed predictive algorithm accounts for thrusters saturation and a propellant budget on...

[hal-01076366] Reducing the complexity of the performance analysis of a multi- server facilities

Systems with multiple servers are common in many areas and their correct dimensioning is in general a difficult problem under realistic assumptions on the pattern of user arrivals and service time distribution We present an approximate solution for the underlying Ph/Ph/c/N queueing model Our approximation...

[tel-01077904] Géopatrimoine des trois Chablais identification et valorisation des témoins glaciaires

This research focuses on glacial witnesses in the Chablais area according to four dimensions geoheritage objective knowledge inventory and promotion of geosites It is organized on the model of an heritage's process which it participates and that it questions both In 2009 the project 123 Chablais started...

[hal-01076793] Quant de cop l'as buta Lou mite de Sisife relegi pèr Reinié Moucadel

Etude du texte Quant de cop l'as buta extrait du recueil poétique De cop la nèu de René Moucadelfrom HAL : Dernières publications http://ift.tt/12YL...

[hal-01076796] L'Encèndi dou castèu de Coucagno counta pèr Glaude Brueys

Etude du texte L'Encèndi dou castèu de Coucagno extrait duJardin deys musos provensalos de Claude Brueysfrom HAL : Dernières publications http://ift.tt/12YL...

[hal-01012136] Nonnegative Compression for Semi-Nonnegative Independent Component Analysis

In many Independent Component Analysis ICA problems the mixing matrix is nonnegative while the sources are unconstrained giving rise to what we call hereafter the Semi-Nonnegative ICA SN-ICA problems Exploiting the nonnegativity property can improve the ICA result Besides in some practical applications...

[tel-01075625] Degenerate parabolic systems involved in fluid mechanics and medicine mathematical and numerical analysis

In this thesis we are interested in the mathematical and numerical analysis of nonlinear degenerate parabolic systems arising either from modeling the chemotaxis process or from modeling compressible flows in porous media The proposed chemotaxis model Keller-Segel model is a model of population dynamics...

[tel-01078479] Caractérisation hydrogéophysique multi-échelles et dynamique des stocks d'eau souterrains d'un bassin versant en zone soudanienne de socle apport de la gravimétrie

Water storage together with its temporal and spatial variations are major unknowns of the West African hydrological cycle The three main gravimeter types a relative superconducting gravimeter –SG– a relative microgravimeter –CG5– and an absolute gravimeter –FG5– have been set up on an elementary catchment...

[hal-01077506] Bio-algorithmique des ARN petite promenade aux interfaces

Nous présentons la recherche en bioinformatique des ARN en insistant particulièrement sur sa dimension algorithmique ainsi que sur les nombreuses et fructueuses interactions avec d'autres sciences qui jalonnent son histoirefrom HAL : Dernières publications http://ift.tt/12YL...

[tel-01078087] Design and Management of Networks with Low Power Consumption

In this thesis we study several models of energy-aware routing For each model we present a linear programming formulation to find the exact solution Moreover since energy-aware routing is NP-hard problem we also propose efficient heuristic algorithms for large scale networks In the first part of this...

[hal-01077986] User Engagement as Evaluation a Ranking or a Regression Problem?

In this paper we describe the winning approach used on the RecSys Challenge 2014 which focuses on employing user en-gagement as evaluation of recommendations On one hand we regard the challenge as a ranking problem and apply the LambdaMART algorithm which is a listwise model special-ized in a Learning...

[hal-01078466] Success and Failure of Adaptation-Diffusion Algorithms for Consensus in Multi-Agent Networks

This paper investigates the problem of distributed stochastic approximation in multi-agent systems The algorithm under study consists of two steps a local stochastic approximation step and a diffusion step which drives the network to a consensus The diffusion step uses row-stochastic matrices to weight...

[hal-01077984] Automation and combination of linear-programming based stabilization techniques in column generation

The convergence of a column generation algorithm can be improved in practice by using so-called stabilization techniques Proximal methods based on penalising the deviation from the incumbent dual solution have become standards of the domain However the analysis of such methods is important to understand...

[hal-01070253] Impact of receptor clustering on ligand binding

Background Cellular response to changes in the concentration of different chemical species in the extracellular medium is induced by ligand binding to dedicated transmembrane receptors Receptor density distribution and clustering may be key spatial features that influence effective and proper physical...

[hal-01078472] Analyse de stabilité globale et instabilité hydrodynamique dans un conduit traité acoustiquement

Les conduits dont les parois sont traitées à l'aide de matériaux absorbants acoustiques liners peuvent exhiber en présence d'écoulement une instabilité hydrodynamique Il a été montré dans la littérature que lorsqu'une onde acoustique se propage le long du liner dans une configuration où l'instabilité...

[hal-01078469] IRRATIONAL MIXED DECOMPOSITION AND SHARP FEWNOMIAL BOUNDS FOR TROPICAL POLYNOMIAL SYSTEMS

Given convex polytopes P 1 P r ⊂ R n and finite subsets W I of the Minkowsky sums P I = i∈I P i we consider the quantity N W = I⊂r −1 r−I W I If W I = Z n ∩ P I and P 1 P n are lattice polytopes in R n then N W is the classical mixed volume of P 1 P n giving the number of complex solutions of a general...

[tel-01078470] Study of III-V nanostructures on GaP for lasing emission on Si

This PhD work focuses on the study of III-V semiconductor nanostructures for the development of laser on Si substrate in a pseudomorphic approach GaP-based alloys and more specifically dilute nitride GaPN-based alloys are expected to guarantee a low density of crystalline defects through a perfect lattice-matched...

[tel-01053664] Étude par simulation moléculaire de la flexibilité des matériaux nanoporeux propriétés structurales mécaniques et thermodynamiques

The topic of this thesis is the thermodynamical mechanical and adsorptive behavior of Soft Porous Crystals SPCs Porous metal-organic frameworks MOF are a novel class of crystalline materials with promising industrial applications such as gas adsorption and separation processes Much attention has recently...

[hal-00649051] Global Regularity of the 3D Axisymmetric Navier-Stokes Equations with swirl

In this paper we prove global regularity of the 3D axisymmetric Navier-Stokes equations with swirl To our knowledge our article answers to an open problem old of decades despite of great effort by many mathematicians and physicists Our proof is based on recent works about the surprising stabilizing...

[hal-00628641] Control and mixing for 2D Navier-Stokes equations with space-time localised noise

We consider randomly forced 2D Navier-Stokes equations in a bounded domain with smooth boundary It is assumed that the random perturba- tion is non-degenerate and its law is periodic in time and has a support localised with respect to space and time Concerning the unperturbed problem we assume that...

[tel-01077041] La population urbaine du Maroc Étude géographique

Two main study directions guide our inquiry The first concerns the successive geographical expressions of urbanization What are the urban creations changes in the urban hierarchy? What areas of high or low urban density are interrelated phenomena which must be raised? What were the changes and growth...

[hal-01078059] The Role of the Internet of Things in Network Resilience

Disasters lead to devastating structural damage not only to buildings and transport infrastructure but also to other critical infras-tructure such as the power grid and communication backbones Follow-ing such an event the availability of minimal communication services is however crucial to allow efficient...

[hal-01054942] On the Consistency of Ordinal Regression Methods

Ordinal regression is a common supervised learning problem sharing properties with both regression and classification Many of the ordinal regression algorithms that have been proposed can be viewed as methods that minimize a convex surrogate of the zero-one absolute or squared errors We extend the notion...

[hal-01077834] Variability Management in Domain-Specific Languages

Domain-specific languages DSLs have demonstrated their capability to reduce the gap between the problem domain and the techni-cal decisions during the software development process However building a DSL is not an easy task because it requires specialized knowledge and skills Moreover the challenge becomes...

[hal-01078461] Carreaux Bézier-Serendip de degré arbitraire

We define B\'ezier-Serendipity patches for quads and hexes with full symmetry properties We give a way of constructing those patches by considering the B\'ezier setting We show that since the degree~5 the lack of symmetry for the Serendipity Lagrange finite elements remains a point for our patches and...

[hal-00876432] Filtering Non-Linear Transfer Functions on Surfaces

Applying non-linear transfer functions and look-up tables to procedural functions such as noise surface attributes or even surface geometry are common strategies used to enhance visual detail Their simplicity and ability to mimic a wide range of realistic appearances have led to their adoption in many...

[tel-01078038] Digital geometry and algorithmic geometry for interactive 3D design

While 3D surfaces are essentially represented using triangle meshes in the domain of digital geometry the structures that allow to interact with those are various and adapted to the different geometry processing tasks that are targetted by the userThis thesis presents results on structures of various...

[tel-01077902] Quarante ans de dialogue évolution des relations politico-diplomatiques entre la France et la Chine 1964-2007

The purpose of this thesis is to investigate which factors internal and external influence the evolution of Sino-French relations since 1964 France being the first occidental country that recognized the new China in 1964 the Sino-French relationship is considered a priority of French government’s Asian...

[tel-01078229] Modulateurs à base de puits quantiques Ge/SiGe pour la photonique sur silicium

Silicon photonics has generated a great interest for several years for applications from long-haul optical telecommunication to intra-chip interconnects The ultimate integration of optics and electronics on the same chip would allow an increase of the integrated circuit performances at low cost In this...

[tel-01078227] Census les recensements dans l'empire romain d'Auguste à Diocletien

The provincial census is a key institution of the Roman Empire Instituted by the first Princeps Augustus it was aimed at estimating the human and material resources of the territories which were under Roman control and thus proved to be a cornerstone of the Roman fiscal system Nevertheless it remains...

[tel-01077756] Fluorescence picoseconde de complexes bio-moléculaires hors équilibre dans un écoulement microfluidique

This thesis has proven the feasibility of measuring the relaxation of a biomolecular complex as well as its structural heterogeneity by associating microfluidics and time resolved fluorescence TRF I present in which way TRF allows for probing the structure of a molecule and how it is measured in particular...

[tel-01077762] Mise au point d'outils optogénétiques pour la photorégulation de l'activité des récepteurs canaux P2X

The ATP-gated P2X receptors are trimeric ion channels that are selective to cationsThese ion channels are involved in various physiological processes such as nociception and neuromodulation The study of P2XR physiology suffers from a lack of selective pharmacological molecules Optogenetic pharmacology...

[tel-01078241] A study of heat and mass transfer in enclosures by phase-shifting interferometry and bifurcation analysis

Fundamental questions concerning the mass diffusion properties of biological systems under isothermal and non-isothermal conditions still remain due to the lack of experimental techniques capable of visualizing and measuring mass diffusion phenomena with a high accuracy As a consequence there is a need...

[tel-01078318] Éco-conception par une Approche Multicritère d’un Système Polymère/Traceurs/Détecteur pour le tri automatisé par spectrométrie de fluorescence UV-VIS en vue d’augmenter la recyclabilité des produits

The recycling of materials from end of life products is a important issue to preserve our resources of raw materials which are more and more rare and the extraction of which is more and more impactant for the environment Nevertheless certain materials are little recycled It is the case of dark colored...

[tel-01078299] Network tomography from an operator perspective

Network tomography is the study of a network's traffic characteristics using measures This subject has already been addressed by a whole community of researchers especially to answer the need for knowledge of residential Internet traffic that ISPs have to carry One of the main aspects of the Internet...

[hal-01078398] Half-explicit timestepping schemes on velocity level based on time-discontinuous Galerkin methods

This paper presents a time-discretization scheme for the simulation of nonsmooth mechanical systems These consist of rigid and flexible bodies joints as well as contacts and impacts with dry friction The benefit of the proposed formalism is both the consistent treatment of velocity jumps eg due to impacts...

[hal-01077508] Recognizing Thousands of Legal Entities through Instance-based Visual Classification

This paper considers the problem of recognizing legal en-tities in visual contents in a similar way to named-entity recognizers for text documents Whereas previous works were restricted to the recognition of a few tens of logotypes we generalize the problem to the recognition of thousands of legal persons...

[hal-01077625] Evolution Strategies with Additive Noise A Convergence Rate Lower Bound

We consider the problem of optimizing functions corrupted with additive noise It is known that evolutionary algo-rithms can reach a simple regret O1/ √ n within logarith-mic factors when n is the number of function evaluations We show mathematically that this bound is tight at least for a wide family...

[hal-01065586] Multilabel Structured Output Learning with Random Spanning Trees of Max-Margin Markov Networks

We show that the usual score function for conditional Markov networks can be written as the expectation over the scores of their spanning trees We also show that a small random sample of these output trees can attain a significant fraction of the margin obtained by the complete graph and we provide...

[dumas-01075835] Usage et mésusage du paracétamol dans la population générale comment les patients l'utilisent ?

Le paracétamol est l'antalgique le plus utilisé avec 492 millions de boîtes vendues en 2012 Le mésusage est un facteur de risque de l'automédication Il peut être compliqué de lésions hépatiques sévères pouvant aller jusqu'à la transplantation hépatique ou au décès Cependant l'automédication est largement...

[hal-01078423] Laser line scanning for fluorescence reflectance imaging a phantom study and in vivo validation of the enhancement of contrast and resolution Laser line scanning for fluorescence reflectance imaging a phantom study and in vivo validation of the enhancement of contrast and resolution

Intraoperative fluorescence imaging in reflectance geometry is an attractive imaging modality to non-invasively monitor fluorescence-targeted tumors In some situations this kind of imaging suffers from poor res-olution due to the diffusive nature of photons in tissue The objective of the proposed technique...

[hal-01078404] Divergence in the Stefan-Boltzmann law at High Energy Density Conditions

It was recently detected an unidentified emission line in the stacked X-ray spectrum of galaxy clusters Since this line is not catalogued as being the emission of a known chemical element several hypotheses have been proposed for example that it is of a known chemical element but with an emissivity...

[hal-00949682] Uniform-in-time convergence result of numerical methods for non-linear parabolic equations

We prove that all Gradient Schemes - which include Finite Element some Mixed Finite Element and Finite Volume methods - converge uniformly in time when applied to a family of nonlinear parabolic equations which contains the Richards Stefan and Leray-Lions modelsfrom HAL : Dernières publications htt...

[hal-01078380] Dunes on Titan at the Beginning of the Cassini Solstice Mission

Dunes on Titan a dominant land- form comprising 12-20% of the surface represent the end product of many surface processes acting in for- eign conditions Winds in a nitrogen-rich atmosphere with Earth-like pressure transport sand that is likely to have been derived from complex organics produced in the...

[hal-01078378] Unveiling Contacts within Macro-molecular assemblies by solving Minimum Weight Connectivity Inference Problems

Consider a set of oligomers listing the subunits involved in sub-complexes of a macro-molecular assembly obtained eg using native mass spectrometry or affinity purification Given these oligomers connectivity inference CI consists of finding the most plausible contacts between these subunits and minimum...

[hal-01078368] Performance evaluation of partially saturated vertical-flow constructed wetland with trickling filter and chemical precipitationfor domestic and winery wastewaters treatment

The use of Vertical Flow Constructed Wetlands VFCW is growing rapidly in Europe for domestic wastewater treatment in small communities In order to improve denitrification and dephosphatation as compared to classical VFCW the Azoé-NP® process has been developed The process line consists of a biological...

[tel-01078365] Capteurs à fibres optiques répartis par effet Brillouin séparation de la dépendance à température et à la déformation

Optical fibers sensors for civil engineering are not a new idea Their interest is based mainly on the intrinsic properties of optical fibers electromagnetic neutrality important capacity of multiplexing and access to long distances of measure These sensors may cover numerous functions of the traditional...

[hal-00713368] Parametric Estimation of Ordinary Differential Equations with Orthogonality Conditions

Differential equations are commonly used to model dynamical deterministic systems in applications When statistical parameter estimation is required to calibrate theoretical models to data classical statistical estimators are often confronted to complex and potentially ill-posed optimization problem...
 

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