Relevant bibliographies by topics / Système spatial distribué

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Système spatial distribué'

Author: Grafiati
Published: 23 November 2024
Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Système spatial distribué.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Système spatial distribué"

1

Ray, Cyril. "Un système distribué pour la modélisation de flux de données spatiales désagrégées." Revue internationale de géomatique 13, no. 2 (2003): 201–24. http://dx.doi.org/10.3166/rig.13.201-224.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Morin, Denis. "Allométrie du système urbain du Québec (1941-1971)." Cahiers de géographie du Québec 19, no. 46 (2005): 17–37. http://dx.doi.org/10.7202/021246ar.

Full text
Abstract:
Ce travail contribue à la connaissance du phénomène de la croissance du système urbain québécois avec l'aide de techniques statistiques. Notre double objectif est le suivant : d'une part établir la pertinence des taux de croissance allométrique calculés à l'aide de six points de référence dans le temps, et d'autre part identifier et surtout mesurer les forces qui articulent la croissance du système urbain québécois. Tout d'abord, il a été possible de voir comment la croissance des agglomérations se distribue dans l'espace. L'analyse a fait ressortir très tôt la grande complexité de la croissan
APA, Harvard, Vancouver, ISO, and other styles
3

Fortin, J. P., R. Moussa, C. Bocquillon, and J. P. Villeneuve. "Hydrotel, un modèle hydrologique distribué pouvant bénéficier des données fournies par la télédétection et les systèmes d'information géographique." Revue des sciences de l'eau 8, no. 1 (2005): 97–124. http://dx.doi.org/10.7202/705215ar.

Full text
Abstract:
Les processus hydrologiques variant dans l'espace et dans le temps en fonction de la variabilité spatio-temporelle des entrées météorologiques et de l'occupation du sol ainsi que de la variabilité spatiale de la topographie et de la nature du terrain, un modèle conçu pour bénéficier des données provenant de la télédétection et des SIG a été développé. Les principaux objectifs poursuivis étaient: l'application au plus grand nombre de bassins possible, une sélection d'algorithmes permettant de tenir compte des données disponibles, un minimum d'étalonnage, la facilité de transfert d'un bassin à l
APA, Harvard, Vancouver, ISO, and other styles
4

GOGIEN, Frédéric, Magali DECHESNE, Rémi MARTINERIE, and Gislain LIPEME-KOUYI. "Evolution des rejets urbains de temps de pluie à l’horizon 2100 - application à valence romans agglo." Techniques Sciences Méthodes, TSM 5 2025 (May 30, 2025): 75–88. https://doi.org/10.36904/tsm/20250575.

Full text
Abstract:
L’impact du changement climatique est une préoccupation croissante pour la gestion des systèmes d'assainissement, avec notamment l’intensification des événements pluvieux, et en particulier dans le bassin méditerranéen. La réponse des systèmes d’assainissement aux événements pluvieux se produit sur des pas de temps fins, alors que les données de projections climatiques ne sont disponibles que sur des pas de temps journaliers. La modélisation des précipitations futures à des pas de temps fins est donc un défi pour les hydrologues. Veolia a souhaité développer une méthode opérationnelle et repro
APA, Harvard, Vancouver, ISO, and other styles
5

Smit, Izak. "Systems approach towards surface water distribution in Kruger National Park, South Africa." Pachyderm 53 (June 30, 2013): 91–98. http://dx.doi.org/10.69649/pachyderm.v53i.328.

Full text
Abstract:
There was concerted effort, especially between the 1960s and 1990s, to increase the distribution of surface water in Kruger National Park (KNP). As a consequence, most of the park was within easy walking distance of a permanent water source for large, mobile herbivores during the peak of the water-for-game programme. This situation was unnatural and led to various unintended ecological effects. In reaction to this and in response to changing conservation and management paradigms, the water provision policy was revised in 1997. Since the policy change, about two-thirds of the more than 300 bore
APA, Harvard, Vancouver, ISO, and other styles
6

Daghistani, Anas, Walid G. Aref, Arif Ghafoor, and Ahmed R. Mahmood. "SWARM: Adaptive Load Balancing in Distributed Streaming Systems for Big Spatial Data." ACM Transactions on Spatial Algorithms and Systems 7, no. 3 (2021): 1–43. http://dx.doi.org/10.1145/3460013.

Full text
Abstract:
The proliferation of GPS-enabled devices has led to the development of numerous location-based services. These services need to process massive amounts of streamed spatial data in real-time. The current scale of spatial data cannot be handled using centralized systems. This has led to the development of distributed spatial streaming systems. Existing systems are using static spatial partitioning to distribute the workload. In contrast, the real-time streamed spatial data follows non-uniform spatial distributions that are continuously changing over time. Distributed spatial streaming systems ne
APA, Harvard, Vancouver, ISO, and other styles
7

Kacin, Melanie, Oakyoon Cha, and Isabel Gauthier. "The Relation between Ensemble Coding of Length and Orientation Does Not Depend on Spatial Attention." Vision 7, no. 1 (2022): 3. http://dx.doi.org/10.3390/vision7010003.

Full text
Abstract:
Most people are good at estimating summary statistics for different features of groups of objects. For instance, people can selectively attend to different features of a group of lines and report ensemble properties such as the mean length or mean orientation and there are reliable individual differences in such ensemble judgment abilities. Our recent study found decisive evidence in support of a correlation between the errors on mean length and mean orientation judgments (r = 0.62). The present study investigates one possible mechanism for this correlation. The ability to allocate spatial att
APA, Harvard, Vancouver, ISO, and other styles
8

Baringo, Fonseca Clara, Luiza Correa, Nayara Soto, and Rafael Sacramento. "SiBBr: Envisioning the spatial distribution of Brazilian biodiversity records." Biodiversity Information Science and Standards 1 (August 2, 2017): e19966. https://doi.org/10.3897/tdwgproceedings.1.19966.

Full text
Abstract:
Habitat degradation and fragmentation has driven much of the extinction process of current species. Biodiversity loss compromises ecosystems goods and socioeconomic activities, and can be managed through holistic conservation policies that prioritize where and how to spend efforts and resources. Hence an easy-to-use information tool that crosses biodiversity data with geographical locations is key for the development of effective conservation policies. The Brazilian Biodiversity Information System (SiBBr), a government initiative and the Brazilian node of the Global Biodiversity Information Fa
APA, Harvard, Vancouver, ISO, and other styles
9

Cao, Kerang, Kwang-nam Choi, Hoekyung Jung, and Lini Duan. "Deep Learning for Facial Beauty Prediction." Information 11, no. 8 (2020): 391. http://dx.doi.org/10.3390/info11080391.

Full text
Abstract:
Facial beauty prediction (FBP) is a burgeoning issue for attractiveness evaluation, which aims to make assessment consistent with human opinion. Since FBP is a regression problem, to handle this issue, there are data-driven methods for finding the relations between facial features and beauty assessment. Recently, deep learning methods have shown its amazing capacity for feature representation and analysis. Convolutional neural networks (CNNs) have shown tremendous performance on facial recognition and comprehension, which are proved as an effective method for facial feature exploration. Lately
APA, Harvard, Vancouver, ISO, and other styles
10

Borges, Marco A., Paulo B. Lopes, and Leandro A. da Silva. "Network Optimization of Carbon Monoxide Sensor Nodes in the Metropolitan Region of São Paulo." Electronics 12, no. 22 (2023): 4647. http://dx.doi.org/10.3390/electronics12224647.

Full text
Abstract:
Air pollution is one of the biggest problems affecting large urban areas. Better monitoring of regions suffering from this type of pollution is in the interest of public health. Although many cities employ sensors to monitor air pollution, a current concern is how to establish the ideal number of sensors to monitor a given geographical region. To address this concern, this research proposes a method to optimize the number of sensors in an air pollution monitoring network to cover a given region efficiently and precisely and uses the metropolitan region of São Paulo, Brazil, and CO sensors as a
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Système spatial distribué"

1

Akopyan, Evelyne. "Fiabilité de l'architecture réseau des systèmes spatiaux distribués sur essaims de nanosatellites." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP102.

Full text
Abstract:
Le domaine de l’observation de l’Espace s’intéresse de près aux signaux très basse fréquence, car ils fournissent d’importantes informations quant à la naissance et aux premiers jours de l’Univers. A ce jour, les interféromètres observant ces signaux se situent à la surface de la Terre, dans des zones arides. Malheureusement, ces signaux sont très sensibles aux interférences terrestres ainsi qu’à l’ionosphère, et sont donc difficilement observables. Une solution à ce problème serait d’observer les signaux directement depuis l’Espace, en déployant un essaim de nanosatellites en orbite autour de
APA, Harvard, Vancouver, ISO, and other styles
2

Pontisso, Nadège. "Association cohérente de données dans les systèmes temps réel à base de composants - Application aux logiciels spatiaux." Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2009. http://tel.archives-ouvertes.fr/tel-00459071.

Full text
Abstract:
Les architectures distribuées des systèmes embarqués sont souvent décrites sous la forme de composants concurrents communiquant entre eux. De tels systèmes sont à la fois orientés flot de données pour leur description, et dirigés par le temps pour leur exécution. Cette thèse s'inscrit dans cette problématique et se concentre sur le contrôle de la compatibilité temporelle d'un ensemble de données interdépendantes utilisées par les composants du système. L'architecture d'un système modélisé par composants forme un graphe où plusieurs chemins peuvent relier deux composants, avec des caractéristiq
APA, Harvard, Vancouver, ISO, and other styles
3

Salmon, Loïc. "Une approche holistique combinant flux temps-réel et données archivées pour la gestion et le traitement d'objets mobiles : application au trafic maritime." Thesis, Brest, 2019. http://www.theses.fr/2019BRES0006/document.

Full text
Abstract:
La numérisation de nos espaces de vie et de mobilités s’est largement accentuée durant la dernière décennie. La multiplication des capteurs de toute nature permettant de percevoir et de mesurer notre espace physique en est le levier principal. L’ensemble de ces systèmes produit aujourd’hui de grands volumes de données hétérogènes sans cesse croissants, ce qui soulève de nombreux enjeux scientifiques et d'ingénierie en termes de stockage et de traitement pour la gestion et l’analyse de mobilités. Les travaux dans le domaine d’analyse des données spatio-temporelles ont largement été orientés soi
APA, Harvard, Vancouver, ISO, and other styles
4

Baumann, Hervé. "Diffusion décentralisée d'information dans les systèmes distribués." Paris 7, 2012. http://www.theses.fr/2012PA077076.

Full text
Abstract:
Cette thèse porte sur la diffusion d'informations dans les réseaux. La diffusion consiste à transmettre une information à partir d'un nœud source vers tous les autres nœuds. Elle est très présente en informatique, aussi bien pour transmettre du contenu par internet que pour le calcul distribué ou parallèle. Dans les protocoles que nous considérons, chaque nœud informé participe à la diffusion d'information : dans l'inondation, un nœud informé transmet l'information à tous ses voisins en une seule étape de temps, et dans la diffusion 1-PORT chaque nœud informé communique, à chaque étape, avec u
APA, Harvard, Vancouver, ISO, and other styles
5

Pasqua, Roberto. "Inférence et modèles de données personnelles : mobilité sociale, proximité spatiale." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30195/document.

Full text
Abstract:
La diffusion massive de dispositifs portables, de plus en plus utilisés pour le traitement et la communication de l'information, permet la collecte d'importantes masses de données liées à l'activité des utilisateurs sur des applications mobiles. Nous nous intéressons aux données de localisation (les traces de mobilité) qui sont issues de systèmes mobiles formés par un groupe d'utilisateurs. Les données de mobilité produites dans un système mobile sont étudiées suivant deux axes : - L'utilisation des modèles de mobilité est à la base du développement d'algorithmes de communication dédiés au sys
APA, Harvard, Vancouver, ISO, and other styles
6

Brahem, Mariem. "Optimisation de requêtes spatiales et serveur de données distribué - Application à la gestion de masses de données en astronomie." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLV009/document.

Full text
Abstract:
Les masses de données scientifiques générées par les moyens d'observation modernes, dont l’observation spatiale, soulèvent des problèmes de performances récurrents, et ce malgré les avancées des systèmes distribués de gestion de données. Ceci est souvent lié à la complexité des systèmes et des paramètres qui impactent les performances et la difficulté d’adapter les méthodes d’accès au flot de données et de traitement.Cette thèse propose de nouvelles techniques d'optimisations logiques et physiques pour optimiser les plans d'exécution des requêtes astronomiques en utilisant des règles d'optimis
APA, Harvard, Vancouver, ISO, and other styles
7

Petit, Mathieu. "Approche spatiale pour la caractérisation du contexte d'exécution d'un système d'information ubiquitaire." Phd thesis, Paris, ENSAM, 2010. http://pastel.archives-ouvertes.fr/pastel-00511919.

Full text
Abstract:
Les nouvelles technologies en matière d'accès à l'information, de communication sans-fil et de localisation d'informations ouvrent la voie à des innovations majeures dans l'utilisation des systèmes informatiques. Ces avancées permettent d'imaginer de nouveaux usages informatiques dont la mise en œuvre motive le développement de méthodes de conception appropriées. Plus particulièrement, l'informatique mobile combine désormais des enjeux conceptuels tels que l'accès à des services par un utilisateur en mobilité, la généralisation d'outils de localisation, la compréhension de systèmes complexes p
APA, Harvard, Vancouver, ISO, and other styles
8

Novaes, Tiago Fernandes de Athayde. "Processamento distribu?do da consulta espa?o textual top-k." Universidade Estadual de Feira de Santana, 2017. http://localhost:8080/tede/handle/tede/530.

Full text
Abstract:
Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2017-11-28T21:38:06Z No. of bitstreams: 1 dissertacao-versao-final.pdf: 2717503 bytes, checksum: a1476bba65482b40daa1a139191ea912 (MD5)<br>Made available in DSpace on 2017-11-28T21:38:06Z (GMT). No. of bitstreams: 1 dissertacao-versao-final.pdf: 2717503 bytes, checksum: a1476bba65482b40daa1a139191ea912 (MD5) Previous issue date: 2017-07-17<br>With the popularization of databases containing objects with spatial and textual information (spatio-textual object), the interest in new queries and techniques for retrieving t
APA, Harvard, Vancouver, ISO, and other styles
9

Vu, Ngoc Minh Trang. "Approche hamiltonienne à ports pour la modélisation, la réduction et la commande des dynamiques des plasmas dans les tokamaks." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT067/document.

Full text
Abstract:
L'objectif principal de la thèse est d'établir un modèle sous forme hamiltonienne à ports pour la dynamique du plasma dans les réacteurs de fusion de type tokamak, puis de démontrer le potentiel de cette approche pour aborder les problèmes d'intégration numérique et de commande non linéaire. Les bilans thermo-magnéto-hydrodynamiques, écrits sous forme hamiltonienne à ports à l'aide de structures Stokes-Dirac, conduisent à un modèle 3D “ multi-physique ” du plasma. Ensuite, un modèle 1D équivalent au modèle de diffusion résistive est obtenu en supposant les mêmes hypothèses d'équilibre quasi-st
APA, Harvard, Vancouver, ISO, and other styles
10

Wang, Peng. "Active vibration control in a specific zone of smart structures." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEC007/document.

Full text
Abstract:
Cette recherche vise à résoudre un problème particulier du contrôle de vibration des structures intelligentes. Notre objectif est de réduire les vibrations dans une zone spécifique de la structure intelligente avec une perturbation qui couvre une large gamme de fréquences. De plus, dans cette zone spécifique, ni l'actionnement ni la détection ne sont possibles.Ici, nous faisons face à plusieurs défis principaux. Premièrement, nous devons contrôler les vibrations d’une zone spécifique de la structure, alors que nous n’avons accès aux mesures que dans d’autres zones. Deuxièmement, la large bande
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Système spatial distribué"

1

Shatkin, Gavin. Cities for Profit. Cornell University Press, 2018. http://dx.doi.org/10.7591/cornell/9781501709906.001.0001.

Full text
Abstract:
In the past three decades, urban real estate megaprojects—massive, master planned, for profit urban developments—have captured the imagination of politicians and policy-makers across Asia. This book argues that state actors have been major drivers of these transformative projects, and have realized them through increasingly aggressive efforts to reclaim or acquire land, and to transfer land rights to corporate developers. State actors have specifically sought to monetize land as a strategy of state empowerment, a means to generate budget revenue, distribute patronage, and drive economic growth
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Système spatial distribué"

1

MOTTE-BAUMVOL, Benjamin. "Une mobilité inégalement distribuée, éclairage sur le Brésil." In Systèmes de mobilité urbaine dans le monde. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9154.ch2.

Full text
Abstract:
Dans une société valorisant une forte mobilité, ce chapitre analyse le lien entre la faible mobilité, caractérisée par des distances courtes et un nombre réduit de déplacements, et les formes d'exclusion qui en découlent. Les effets de contexte sociaux et spatiaux sont étudiés en Europe, en Amérique du Nord et en Australie, puis confrontés au cas du Brésil, marqué par de fortes inégalités et une faible mobilité.
APA, Harvard, Vancouver, ISO, and other styles
2

Tsou, Ming-Hsiang, and Ick Hoi Kim. "Increasing Spatial Awareness by Integrating Internet Geographic Information Services (GIServices) with Real Time Wireless Mobile GIS Applications." In Wireless Technologies. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-61350-101-6.ch308.

Full text
Abstract:
Spatial awareness is one of the fundamental decision making capabilities for human beings. Two key information technologies, Internet Geographic Information Services (GIServices) and wireless mobile Geographic Information Systems (GIS) can enhance the spatial awareness of decision makers and facilitate more efficient and comprehensive decision making processes. Internet GIServices provide a collaborative communication environment for sharing data, information and knowledge among multiple decision makers and stakeholders. Wireless mobile GIS combines both geospatial information and Global Posit
APA, Harvard, Vancouver, ISO, and other styles
3

Saltzman, W. Mark. "Controlled Drug Delivery Systems." In Drug Delivery. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195085891.003.0015.

Full text
Abstract:
In most forms of drug delivery, spatial localization and duration of drug concentration are constrained by organ physiology and metabolism. For example, drugs administered orally will distribute to tissues based on the principles of diffusion, permeation, and flow presented in Part II of this book. If the duration of therapy provided by a single administration is insufficient, the drug must be readministered. Localization of drug can be controlled by injection, but only within limited spatial constraints, and effectiveness after an injection is usually short-lived. Controlled-delivery systems
APA, Harvard, Vancouver, ISO, and other styles
4

Tang, Tengteng, Dylan Joralmon, and Xiangjia Li. "3D Printing of Biomimetic Functional Nanocomposites via Vat Photopolymerization." In Advances in 3D Printing [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.110413.

Full text
Abstract:
The complex structures and functional material systems of natural organisms effectively cope with crisis-ridden living environments such as high temperature, drought, toxicity, and predator. Behind these excellent survival strategies evolved over hundreds of millions of years is a series of effective mechanical, optical, hydraulic, and electromagnetic properties. Bionic design and manufacturing have always attracted extensive attention, but the progress has been limited by the inability of traditional manufacturing techniques to reproduce microscopically complex structures and the lack of func
APA, Harvard, Vancouver, ISO, and other styles
5

Tinker, Peter B., and Peter Nye. "Root System Architecture, Density, and Measurement." In Solute Movement in the Rhizosphere. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780195124927.003.0013.

Full text
Abstract:
The behaviour and properties of roots are central subjects in this book. A number of biochemical and physiological properties have already been described, for individual roots, in chapters 2, 5, 7, and 8. However, the macroscopic properties of root systems are of very great importance, to an extent that may not be immediately apparent from the point of view of the laboratory. These properties include the root/shoot ratio, the root system dimensions, its topological properties, and its distribution in the soil profile. The property of greatest practical importance is the way in which root lengt
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Système spatial distribué"

1

Michalis, Krista, Donald Bliss, and Linda Franzoni. "Prediction and Modification of Broadband Interior Noise in Enclosures Using Energy-Intensity BEM and Absorption Scaling." In ASME 2008 Noise Control and Acoustics Division Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ncad2008-73057.

Full text
Abstract:
Enclosures with diffuse reflection boundaries are modeled with an energy-intensity boundary element method using uncorrelated broadband directional sources. Input power is assumed to enter the enclosure through the walls, which are also absorptive. An absorption-based perturbation analysis is used to analyze the spatial variation of the acoustic field, which is shown to obey certain scaling laws. A series expansion in terms of spatial-average absorption gives separate boundary integral problems at each order. For the primary spatial variation, the effects of the relative distributions of absor
APA, Harvard, Vancouver, ISO, and other styles
2

Alawami, Rahmah L., Adan H. Tello Gomez, Ferney G. Moreno Sierra, and Imad Brohi. "Channel Characterization in Sandstone Formation Using Pressure Transient Analysis - A Practical Overview to Define Geological Attributes." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-24222-ms.

Full text
Abstract:
Abstract Understanding reservoir systems is of significant importance in optimal exploitation, development plans and management strategies. Sandstone reservoirs consisting of stacked channel deposits are known for their heterogeneity and varying depositional facies adding to their complexity. This paper will focus on the characterization of sandstone reservoirs in channel environments using pressure transient analysis coupled with seismic attributes and stratigraphic features. Proper channel mapping and precise predications of the spatial distribution of sand bodies is a challenging process. P
APA, Harvard, Vancouver, ISO, and other styles
3

Zhang, Dan, and Lihui Wang. "On Performance Enhancement of Parallel Kinematic Machine." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-85034.

Full text
Abstract:
This paper proposes a spatial three degrees of freedom parallel kinematic machine enhanced by a passive leg and a web-based remote control system. First, the geometric model of the three degrees of freedom parallel kinematic machine is addressed; in the mechanism, a fourth kinematic link — a passive link connecting the base center to the moving platform center — is introduced. This last link is used to constrain the motion of the tool (located in the moving platform) to only three degrees of freedom, as well as to enhance the global stiffness of the structure and distribute the torque from mac
APA, Harvard, Vancouver, ISO, and other styles
4

Huang, Xindi, and Nadezhda Yudina. "MODELS DESCRIBING THE ENVIRONMENTAL EFFECTS OF POLLUTANT EMISSIONS BY ROAD TRANSPORT." In Modern aspects of modeling systems and processes. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2021. http://dx.doi.org/10.34220/mamsp_167-173.

Full text
Abstract:
Air pollution is the most serious environmental problem facing most industrial cities in the world and in China. The World Health Organization measured the concentration of sulfur dioxide, nitrogen dioxide and total suspended particulate matter in 272 cities in 53 countries around the world, listing the ten most severely polluted cities in the world. The spatial and temporal distribu-tion of air pollutants depends on various factors such as the meteorological field, the source of emissions, the complex bottom surface of the site, the interplay of physical and chemical processes, and has strong
APA, Harvard, Vancouver, ISO, and other styles
5

Lin, Freddie, Eva M. Strzelecki, and William Liu. "Compact Crossbar Switch For Optical Interconnects." In Optical Computing. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/optcomp.1991.me18.

Full text
Abstract:
Optical crossbar switches are used in a variety of applications: in optical computing, optical communications, and optical interconnects in computers. High speed optical crossbars have been demonstrated for the use in communications such as waveguide electro-optic switches in LiNbO3 [1], semiconductor quantum well modulators [2]. For applications in optical computing it is important to have very large switching arrays to utilize the massively parallel capability of optical signal processing. This has been achieved using spatial light modulators (SLM) which are available in large arrays, such a
APA, Harvard, Vancouver, ISO, and other styles
6

Lee, Sing H. "Recent advances in computer-generated hologram applications." In OSA Annual Meeting. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.tue2.

Full text
Abstract:
Computer-generated holograms (CGHs) have traditionally been employed mostly for optical testing of aspherics. Their applications have recently been expanding to many new areas where the equivalent optical holograms are difficult to make. For example, in wavefront/beam conversion, CGHs can convert Gaussian beams to uniform beams or uniform beams to nondiffracting beams. For pattern recognition, CGHs are designed to make geometric transformations or to perform synthetic spatial filtering functions. For optical interconnects, CGHs are synthesized to distribute clock signals to various parts of a
APA, Harvard, Vancouver, ISO, and other styles
7

Caglayan, Alper, Laura Cassani, Tim Clark, et al. "Semantic Enrichment and Reasoning for Mobile Data Collection of Socio-Cultural Data." In Applied Human Factors and Ergonomics Conference. AHFE International, 2019. http://dx.doi.org/10.54941/ahfe100190.

Full text
Abstract:
Leveraging the widespread adoption of mobile devices, we have developed a semantic knowledge management, mobile data collection, and situational awareness capability that enables the automatic semantic annotation and fusion of mobile collected data. The major components of our semantic knowledge management system consist of form management; data collection, aggregation, and storage; and spatially aware semantic analysis. Our research transforms the analysis of large amounts of data collected from mobile devices from an unstructured process to a structured approach leveraging semantic technolog
APA, Harvard, Vancouver, ISO, and other styles
8

Owechko, Yuri. "Programmable optical neural networks." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.md2.

Full text
Abstract:
We have developed an optical neurocomputer for implementing neural networks based on real-time holography in photorefractive materials. Optical techniques show great promise for implementing neural network models because of the parallelism, connectivity, and high storage capacity of optics. It is generally agreed that optics will most likely be used for implementing very large neural networks that are impractical to simulate or implement electronically. In our system weighted connections between neurons are recorded in barium titanate as photorefractive holograms. We have virtually eliminated
APA, Harvard, Vancouver, ISO, and other styles
9

Hu, Xin, and Po Hsun Wang. "Virtual Reality in Museum: Exploring the User Experience of Exhibition Narrative." In Intelligent Human Systems Integration (IHSI 2024) Integrating People and Intelligent Systems. AHFE International, 2024. http://dx.doi.org/10.54941/ahfe1004530.

Full text
Abstract:
The exhibition narrative of traditional museums is “artifact- centered”, while the modern virtual museum is “people- centered”. The paper first analyzes the current typical VR narrative cases, summarizes the relevant elements and basic characteristics of virtual space narrative, and finds that there are many similarities with the narrative methods in traditional movies, but the relationship between storytelling in the virtual world and the audience The interactive relationship is closer. How to attract the audience's attention to the exhibits to enhance the VR exhibition experience is particul
APA, Harvard, Vancouver, ISO, and other styles
10

Yang, Chen, Manish Boorugu, Andrew Dopp, and Howon Lee. "Lightweight Microlattice With Tunable Mechanical Properties Using 3D Printed Shape Memory Polymer." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6562.

Full text
Abstract:
Metamaterials are architected artificial materials engineered to exhibit properties not typically found in natural materials. Increasing attention has recently been given to mechanical metamaterials with unprecedented mechanical properties including high stiffness, strength, or/and resilience even at extremely low density. These unusual mechanical performances emerge from the three-dimensional (3D) spatial arrangement of the micro-structural elements designed to effectively distribute mechanical loads. Recent advances in additive manufacturing in micro-/nano-scale have catalyzed the growing in
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Système spatial distribué"

1

Pelletier, Austin, Amanda Hohner, Idil Deniz Akin, et al. Bench-scale Electrochemical Treatment of Co-contaminated Clayey Soil. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-018.

Full text
Abstract:
Industrial soil contamination is frequently unearthed by transportation agencies during construction within the right-of-way. As a result, transportation agencies may experience construction delays. Soils co-contaminated with high-molecular-weight polycyclic aromatic hydrocarbons (HMW-PAHs) and metals are commonly encountered in Illinois and exhibit recalcitrance towards conventional treatment technologies. This issue is exacerbated in the fine-grained soils common to Illinois, where low-permeability and immense sorption capacity increase treatment complexity, cost, and duration. Contaminated
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Système spatial distribué' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography