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Artykuły w czasopismach na temat "Localisation discrète"
Huyghe, Christine, i Tobias Schmidt. "𝒟-modules arithmétiques sur la variété de drapeaux". Journal für die reine und angewandte Mathematik (Crelles Journal) 2019, nr 754 (1.09.2019): 1–15. http://dx.doi.org/10.1515/crelle-2017-0021.
Pełny tekst źródłaPérez, R., V. Puig, J. Pascual, A. Peralta, E. Landeros i Ll Jordanas. "Pressure sensor distribution for leak detection in Barcelona water distribution network". Water Supply 9, nr 6 (1.12.2009): 715–21. http://dx.doi.org/10.2166/ws.2009.372.
Pełny tekst źródłaCancilla, B., A. Davies, M. Ford-Perriss i GP Risbridger. "Discrete cell- and stage-specific localisation of fibroblast growth factors and receptor expression during testis development". Journal of Endocrinology 164, nr 2 (1.02.2000): 149–59. http://dx.doi.org/10.1677/joe.0.1640149.
Pełny tekst źródłaAmar, Patrick. "Pandæsim: An Epidemic Spreading Stochastic Simulator". Biology 9, nr 9 (18.09.2020): 299. http://dx.doi.org/10.3390/biology9090299.
Pełny tekst źródłaSulis, Silvia, Anar Rakhimzhanova i Michele Brun. "Filtering Properties of Discrete and Continuous Elastic Systems in Series and Parallel". Applied Sciences 12, nr 8 (11.04.2022): 3832. http://dx.doi.org/10.3390/app12083832.
Pełny tekst źródłaZhang, Renyuan, i Kai Cai. "Supervisor localisation for large-scale discrete-event systems under partial observation". International Journal of Control 93, nr 3 (24.05.2018): 387–99. http://dx.doi.org/10.1080/00207179.2018.1471220.
Pełny tekst źródłaRamasamy, Karthik, Stephen Schey, Ghulam J. Mufti, Farzin Farzaneh i Yolanda Calle. "Hepatocyte Growth Factor Expression in Bone Marrow Microenvironment Is Critical for Progression of MGUS to Myeloma." Blood 110, nr 11 (16.11.2007): 4766. http://dx.doi.org/10.1182/blood.v110.11.4766.4766.
Pełny tekst źródłaLi, Yanfang, Ki-Eun Park i Ryan A. Cabot. "Dynamic changes in nuclear import of a nuclear localisation signal-bearing substrate in 8-cell stage porcine embryos". Reproduction, Fertility and Development 27, nr 2 (2015): 385. http://dx.doi.org/10.1071/rd13205.
Pełny tekst źródłaGarstecki, Andrzej, Anna Knitter-Piatkowska, Zbigniew Pozorski i Krzysztof Ziopaja. "DAMAGE DETECTION USING PARAMETER DEPENDENT DYNAMIC EXPERIMENTS AND WAVELET TRANSFORMATION". JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 10, nr 3 (30.09.2004): 191–97. http://dx.doi.org/10.3846/13923730.2004.9636306.
Pełny tekst źródłaPramanik, S., i L. Satish. "Localisation of discrete change in a transformer winding: a network-function-loci approach". IET Electric Power Applications 5, nr 6 (2011): 540. http://dx.doi.org/10.1049/iet-epa.2010.0197.
Pełny tekst źródłaRozprawy doktorskie na temat "Localisation discrète"
Posta, Marius. "" Resolution Search " et problèmes d'optimisation discrète". Phd thesis, Université d'Avignon, 2012. http://tel.archives-ouvertes.fr/tel-00968201.
Pełny tekst źródłaPosta, Marius. "« Resolution Search » et problèmes d’optimisation discrète". Thèse, Avignon, 2012. http://hdl.handle.net/1866/8393.
Pełny tekst źródłaThe combinatorial nature of discrete optimization problems often makes them diffi- cult to solve. Consider for instance integer linear programming problems, which are commonly solved using a Branch-and-Bound approach. An alternative approach, Resolution Search, was proposed by Chvátal in 1997 for solving 0-1 optimization problems, but remains little known to this day and as such has seen few practical applications. This thesis attempts to remedy this state of affairs, with partial success. Its first contribution consists in the generalization of Resolution Search to any discrete optimization problem, while introducing new definitions and concepts. Next, we tried to validate this approach by attempting to solve well-known problems efficiently with it. Although our research did not succeed in this respect, it lead us to new methods for solving the generalized assignment and uncapacitated facility location problems. After presenting these methods, this thesis concludes with a summary of our attempts at practical application of Resolution Search, along with further perspectives on this matter.
Thèse réalisée en cotutelle avec l'Université d'Avignon.
Papin, Morgane. "Apport de la bioacoustique pour le suivi d’une espèce discrète : le Loup gris (Canis lupus)". Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0258/document.
Pełny tekst źródłaThe growing number of studies carried out in recent years has shown that bioacoustics is particularly interesting for the monitoring of secretive species. The emergence of autonomous recording devices, combined with new methods of analysis, have recently contributed to the increase of studies in this field. Over the last 30 years, many bioacoustic studies have been developed for the Grey wolf (Canis lupus), a secretive large carnivore known for its howls spreading over distances up to several kilometers. These researches notably aimed to improve its monitoring, which is complex because of the strong wolf dispersal capacities over long distances, the large extent of their territories and the various natural contexts in which they live. In this context, this PhD thesis was organized around three research axes. The first two axes focused on the contribution of passive bioacoustics for the Grey wolf monitoring in the field. By combining acoustic, statistical and cartographic analysis, the first objective was to develop a spatial sampling method adapted to large study areas for the detection of wolf howls by using autonomous recorders. Then, the same protocol was used to investigate the possibility to localize wolves thanks to their howls. Field experimentations, conducted in mid-mountain (Massif des Vosges) and lowland (Côtes de Meuse) environments, in two study areas of 30 km² and with an array of 20 autonomous recorders, demonstrated the high potential of passive bioacoustics for the Grey wolf monitoring. Indeed, nearly 70% of broadcasts (synthetic sound with similar acoustic properties to howls) were detected by at least one autonomous recorder in mid-mountain environment and more than 80% in lowland environment, for sound source-recorders distances of up to 2.7 km and 3.5 km respectively. By using statistical model and Geographic Information System, the detection probability of wolf howls was modeled in both study areas. In the mid-mountain environment, this detection probability was high or very high (greater than 0.5) in 5.72 km² of the study area, compared with 21.43 km² in lowland environment. The broadcast sites were localized with an overall mean accuracy of 315 ± 617 (SD) m, reducing until 167 ± 308 (SD) m after setting a temporal error threshold defined from the data distribution. The third axe focused on the application of acoustic diversity indices to estimate the number of howling wolves in choruses and thus to contribute to pack size monitoring. Index values of the six indices (H, Ht, Hf, AR, M, and ACI) were positively correlated with the number of howling wolves in the artificial tested choruses. Interesting size predictions based on real choruses were obtained with one of the indices (ACI). The effects of several biases on the reference values for the acoustic indices were then explored, showing that three of them were relatively insensitive (Hf, AR and, ACI). Finally, results obtained with autonomous recorders confirm the real potential of passive acoustic methods for detecting the presence of wolves but also for localizing individuals with high precision, in contrasting natural environments, at large spatial and temporal scales. The use of acoustic diversity indices also opens new perspectives for estimating pack sizes. All of the promising methods emerging from this thesis require now further investigations before considering a concrete application for monitoring the Grey wolf in its natural environment
Durán, Mateluna Cristian. "Exact solution methods for large-scale discrete p-facility location problems". Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAE001.
Pełny tekst źródłaThis thesis focuses on the exact solution of the NP-hard problems p-median and p-center, combinatorial optimization problems that quickly become difficult to solve as the instance size increases. These discrete location problems involve opening a defined number p of facilities and then allocating to them a set of clients according to an objective function to be minimized.First, we study the p-median problem, which seeks to minimize the sum of distances between clients and the open facilities to which they are allocated. We develop an algorithm based on Benders decomposition that outperforms state-of-the-art exact methods. The algorithm considers a two-stage approach and an efficient algorithm for separating Benders cuts. The method has been evaluated on over 230 benchmark instances with up to 238025 clients and sites. Many instances are solved to optimality for the first time or have their best known solution improved.Secondly, we explore the p-center problem, which seeks to minimize the largest distance between a client and its nearest open facility. We first compare the five main MILP formulations in the literature. We study the Benders decomposition and also propose an exact algorithm based on a client clustering procedure based on the structure of the problem. All the proposed methods are compared with the state-of-the-art on benchmark instances. The results obtained are analyzed, highlighting the advantages and disadvantages of each method.Finally, we study a robust two-stage p-center problem with uncertainty on node demands and distances. We introduce the robust reformulation of the problem based on the five main deterministic MILP formulations in the literature. We prove that only a finite subset of scenarios from the infinite uncertainty set can be considered without losing optimality. We also propose a column and constraint generation algorithm and a branch-and-cut algorithm to efficiently solve this problem. We show how these algorithms can also be adapted to solve the robust single-stage problem. The different proposed formulations are tested on randomly generated instances and on a case study drawn from the literature
Inoa-Peña, Ignacio. "Sur l’interdépendance entre localisation résidentielle et localisationprofessionnelle : modèles de choix discrets". Thesis, Cergy-Pontoise, 2015. http://www.theses.fr/2015CERG0792.
Pełny tekst źródłaThis thesis studies the interdependency between the choices of residential and workplace location. Issues such as the decision-making process, the accessibility to jobs, the geographical distribution of job types, and the spouses collective decision process, among others, are analyzed with discrete choice models. In this setting, we study the location decisions from two complementary points of view. (1) First, we study the interdependency between the two location choices without any within-household consideration. We develop a three-level nested logit model of residential and workplace location and study the effect of individual-specific attractiveness and accessibility (log-sum) measures. Results presented in the first chapter show that the individual-specific accessibility measure is an important determinant of the choice of residential location and its effect differs along the household life cycle. Additionally, the attractiveness of the types of employment is a better predictor of the workplace location than the usual total number of jobs. We analyze the evolution of the attractiveness and attractivity measures in the second chapter. (2) Second, we study the interdependency of residential location and workplaces within the household. This thesis contributes with a within-household bargaining process model of location decisions. As such, it applies the collectiveapproach à la Chiappori of household behavior to describe residential location choice of two-worker households. The last chapter develops and estimates a two-step structural model to disentangle bargaining powers from spouses' values of time. Results show that the nationalities of the couple, their education level, as well as the age difference between spouses play a crucial role in determining bargaining power
Giacometti, Romain. "Détection et localisation des signaux radar (systèmes passifs ou discrets)". Thesis, Brest, 2017. http://www.theses.fr/2017BRES0083.
Pełny tekst źródłaThe purpose of this work is to develop new methods for the detection and the location of radar sources. The developed approach exploits the direct and indirect signals received at the receiving point. In our study, we first develop a model of these signals that takes into account the characteristics of the transmitters and the reflectors. We evaluate this model by simulating a particular case of reflectors detection and location, defined in the literature. Our goal is to use the multipaths to locate emission sources. Most existing methods are based on specular reflections. Methods based on non-specular reflections, to locate emission sources in an unknown environment, are rarely studied in the literature. In our study, we propose a new location method that uses a fixed receiver measuring the Angle of Arrival (AOA) and Time Difference of Arrival (TDOA). In practice, an assignment problem must be solved before locating the emitters and reflectors. The problem is to assign each pair of TDOA-AOA measurements to a given reflector, assuming that each pair has already been assigned to a transmitter. The method developed has been tested and evaluated by using simulated data and real measurements
Hounwanou, Sonagnon. "Pour une approche territoriale de la logistique urbaine : choix individuels de déplacement, localisation commerciale et impact sur l’environnement des flux de transport de marchandises en ville". Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEM013.
Pełny tekst źródłaThe significance of shopping trips for a city is at least twofold. They are essential to supply households as they are critical for the retail sector viability. Despite, shopping trip flows are rarely taken into account while evaluating urban goods flows. Actually, urban goods flows are more often addressed in a transport operating perspective only. We noticed during these PhD works that there is another approach for urban logistics in the scientific literature. We call it the territorial approach because it introduces warehouses location and urban planning matters into urban logistics. But there still are several operating issues to address about this approach. That’s what we targeted during our reflections, investigating the before and the after of a relocation project of an important retail store from Saint-Etienne ‘city centre. The key contributions of our works are twofold. The data we collected first allowed us to develop and test a discrete choice modelling methodology making the link between retail location and individual shopping trips behaviours. Second, we suggest to link both upstream and downstream transport flows generated by a retail store and assess their environmental impacts. Then another question is emerging. Having the possibility to model the retail location choice of consumers, is it easier to compare the environmental impacts of both upstream and downstream flows generated by different commercial areas in the city?
Zhou, Chong. "Investigation of micro- and macro-phenomena in densely packed granular media using the discrete element method". Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/4899.
Pełny tekst źródłaBolting, Jan. "Contributions au vol en formation serrée de petits drones". Thesis, Toulouse, ISAE, 2017. http://www.theses.fr/2017ESAE0013.
Pełny tekst źródłaSmall, electrically driven unmanned aircraft are likely to suffer from inferior endurance compared to their larger counterparts. Upwash exploitation by tight formation flight, as well as aerial recharging are the most promising control-driven approaches to mitigate this disadvantage. Continuous time higher order sliding mode control (CTHOSM) has been considered as a candidate for this challenging open problem and was successfully applied to simple kinematic models in simulation, where excellent relative position tracking performance can be demonstrated. In this work we study the implications of the presence of inner loop dynamics and discrete implementation at moderate sampling rates and we find that it precludes the application of CTHOSM control to fixed-wing UAS. We propose a predictive discrete sliding mode guidance scheme to approximate the performance of CTHOSM control assuming realistic fixed-wing UAS dynamics. We show that the proposed guidance scheme in combination with inner load factor tracking loops and a disturbance observer allows for relative position tracking performance compatible with the requirements of upwash exploitation. We propose as well an openly accessible benchmark problem. Existing probabilistic localization algorithms cannot provide guaranteed confidence regions of the relative position between UAS. We present a set membership filter that provides ellipsoidal regions guaranteed to contain the relative positions of the other UAS. It is compatible with the hardware constraints of small low-cost UAS. Simulations suggest computational efforts compatible with the computational resources typically available onboard small UAS
Brancherie, Delphine. "Modèles continus et "discrets" pour les problèmes de localisation et de rupture fragile et/ou ductile". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2003. http://tel.archives-ouvertes.fr/tel-00132116.
Pełny tekst źródłaKsiążki na temat "Localisation discrète"
Discrete and fractional programming techniques for location models. Dordrecht: Kluwer Academic Publishers, 1998.
Znajdź pełny tekst źródłaBarros, Ana Isabel. Discrete and Fractional Programming Techniques for Location Models. Springer, 2013.
Znajdź pełny tekst źródłaCzęści książek na temat "Localisation discrète"
Jan, Steven. "2 The Evolution of Human Musicality". W Music in Evolution and Evolution in Music, 63–164. Cambridge, UK: Open Book Publishers, 2022. http://dx.doi.org/10.11647/obp.0301.02.
Pełny tekst źródłaFlach, Sergej. "COMPUTATIONAL STUDIES OF DISCRETE BREATHERS". W Energy Localisation and Transfer, 1–71. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812794864_0001.
Pełny tekst źródłaStreszczenia konferencji na temat "Localisation discrète"
Cabrera-Ponce, Aldrich, Manuel Martin-Ortiz i Jose Martinez-Carranza. "Discrete Hierarchical Continual Learning for Single View Geo-Localisation". W LatinX in AI at Computer Vision and Pattern Recognition Conference 2023. Journal of LatinX in AI Research, 2023. http://dx.doi.org/10.52591/lxai202306189.
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