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Letteratura scientifica selezionata sul tema "Spatial"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Spatial"

Osborn, Wendy. "Unbounded Spatial Data Stream Query Processing using Spatial Semijoins." Journal of Ubiquitous Systems and Pervasive Networks 15, no. 02 (2021): 33–41. http://dx.doi.org/10.5383/juspn.15.02.005.

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In this paper, the problem of query processing in spatial data streams is explored, with a focus on the spatial join operation. Although the spatial join has been utilized in many proposed centralized and distributed query processing strategies, for its application to spatial data streams the spatial join operation has received very little attention. One identified limitation with existing strategies is that a bounded region of space (i.e., spatial extent) from which the spatial objects are generated needs to be known in advance. However, this information may not be available. Therefore, two s

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Xin He, Xin He, Jian Zhou Jian Zhou, Xiaoming Nie Xiaoming Nie, and Xingwu Long Xingwu Long. "Filtering characteristics of spatial filter for spatial filtering velocimeter." Chinese Optics Letters 13, no. 6 (2015): 060702–60705. http://dx.doi.org/10.3788/col201513.060702.

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Lee. "A study on the Spatial Sampling Method to Minimize Spatial Autocorrelation of Spatial and Geographical Data." Journal of the Korean Society of Civil Engineers 34, no. 4 (2014): 1317. http://dx.doi.org/10.12652/ksce.2014.34.4.1317.

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Lamy, Jérôme. "Sous l’utopie, la critique." Sociétés & Représentations N° 57, no. 1 (2024): 217–34. http://dx.doi.org/10.3917/sr.057.0217.

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Le groupe artistique d’intervention publique l’Association des astronautes autonomes (l’AAA), s’est, dans les années 1990, proposée d’élaborer une critique des activités spatiales. Par ses manifestations collectives, le groupe dénonçait l’oppression, l’individualisme, la misère et le désenchantement qui sous-tendent le secteur du spatial. L’AAA mobilise toute une gamme d’actions. Les performances et les happenings ont visé un réenchantement de l’exploration spatiale. Les pastiches dénoncent les cadres oppressifs des expériences spatiales. La production théâtralisée du conflit à propos du spati

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Ghirardi, Raymond, and Isabelle Sourbès-Verger. "De la base spatiale au port spatial." La Géographie N° 1584, no. 1 (2022): 18–25. http://dx.doi.org/10.3917/geo.1584.0018.

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Anselin, Luc. "Spatial Externalities, Spatial Multipliers, And Spatial Econometrics." International Regional Science Review 26, no. 2 (2003): 153–66. http://dx.doi.org/10.1177/0160017602250972.

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Wiwin, Sulistyo, Sulistyo Wiwin, and Pulungan Reza. "Development of a Spatial Path-Analysis Method for Spatial Data Analysis." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 4 (2018): 2456–67. https://doi.org/10.11591/ijece.v8i4.pp2456-2467.

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Path analysis is a method for identifying and analyzing direct and indirect relationship between independent and dependent variables. This method was developed by Sewal Wright and initially only used correlation analysis results in identifying the variables’ relationship. So far, path analysis has been mostly used to deal with variables of non-spatial data type. When analyzing variables that have elements of spatial dependency, path analysis could result in a less precise model. Therefore, it is necessary to build a path analysis model that is able to identify and take into account the e

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Salsabilla, Annisa, Eko Tri Rahardjo, and Ode Sofyan Hardi. "PERBEDAAN MODEL PEMBELAJARAN GEOGRAFI: PROJECT BASED LEARNING DENGAN PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA DALAM KURIKULUM 2013 DI SMAN 112 JAKARTA BARAT." SPATIAL: Jurnal Wahana Komunikasi dan Informasi Geografi 12, no. 2 (2014): 1–7. http://dx.doi.org/10.21009/spatial.122.01.

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Hasanuddin, Hasanuddin. "UPAYA MENINGKATKAN HASIL BELAJAR GEOGRAFI PADA KOMPETENSI DASAR ATMOSFER DAN DAMPAKNYA TERHADAP KEHIDUPAN DIPERMUKAAN BUMI MELALUI PENERAPAN MODEL PEMBELAJARAN INQUIRY BERBASIS DISKUSI SISWA KELAS X–F SMA NEGERI 54 JAKARTA." SPATIAL: Jurnal Wahana Komunikasi dan Informasi Geografi 12, no. 2 (2014): 8–15. http://dx.doi.org/10.21009/spatial.122.02.

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Runtuni, Sri Yamti. "HUBUNGAN ANTARA PENGETAHUAN LINGKUNGAN, STATUS SOSIAL EKONOMI DENGAN PERILAKU HIDUP SEHAT." SPATIAL: Jurnal Wahana Komunikasi dan Informasi Geografi 12, no. 2 (2014): 16–20. http://dx.doi.org/10.21009/spatial.122.03.

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Tesi sul tema "Spatial"

Trinh, Thanh-Hai. "A constraint-based approach to modelling spatial semantics of vitual environments." Phd thesis, Université de Bretagne occidentale - Brest, 2012. http://tel.archives-ouvertes.fr/tel-00817685.

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Within Virtual Reality Environments (VREs), spatial relationships among objects convey fundamental knowledge about the environment, namely direction ("left", "right", "front of"), distance ("near", "far"), topology ("inside", "disjoint"), and projection ("between", "surrounded by"). Modelling spatial relationships is critical in a variety of applications of VREs, such as human learning environments, virtual museums, or navigation-aids systems. However, spatial relationships have been considered as abstract information and thus, difficult to specify. Addressing this issue, this thesis proposes

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Richez, Aurélien. "Perception spatiale et compétences motrice : approche développement et neuropsychologique." Thesis, Lille 3, 2014. http://www.theses.fr/2014LIL30054/document.

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Les théories qui modélisent la perception spatiale chez l'adulte s'accordent à postuler l'existence de liens forts entre la perception et l'action(James, 1892 ; Poincaré, 1902 ; Gibson, 1979 ; Noe, 2004). Une vaste collection de données montre également que ces liens sont présents dans le développement ontogénétique. Ce travail de thèse vise à examiner les implications de tels liens dans le développement de la perception spatiale et d'en identifier les déterminants chez l'enfant. Nous avons mené une série d'expériences, basée sur l'utilisation des paradigmes d'atteignabilité et d'amorçage visu

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Bettini, William. "Solutions innovantes pour des structures spatiales déployables." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS038/document.

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Les structures destinées aux applications aérospatiales se doivent d’être légères, rigides et compactes afin de pouvoir être stockées dans la coiffe d’un lanceur. Une solution permettant de déployer automatiquement une ossature rigide à l’aide d’énergie élastique stockée dans des liaisons souples est proposée. La solution retenue, constituant une structure annulaire polygonale, peut être utilisée dans différents types d’applications spatiales, que ce soit pour des voiles solaires, de désorbitation ou des antennes satellite. Elle a fait l’objet d’études géométriques afin d’en optimiser la compa

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Cerf, Max. "Optimisation de trajectoires spatiales : vol d’un dernier étage de lanceur, nettoyage des débris spatiaux." Paris 6, 2012. http://www.theses.fr/2012PA066367.

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Le travail porte sur deux problèmes d’optimisation de trajectoires spatiales: le vol d’un dernier étage de lanceur, et le nettoyage des débris spatiaux. L'objectif est de développer pour ces deux problèmes des méthodes de résolution et des logiciels utilisables dans un contexte industriel. Vol d’un dernier étage de lanceur. Pour la résolution du vol d’un dernier étage de lanceur, deux approches différentes par continuation sont envisagées à partir de simplifications des modèles. La première approche consiste à résoudre le problème en Terre plate, avec un champ de gravité uniforme, puis à reven

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Kim, Young Ook. "Spatial configuration, spatial cognition and spatial behaviour : the role of architectural intelligibility in shaping spatial experience." Thesis, University College London (University of London), 1999. http://discovery.ucl.ac.uk/1317973/.

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This thesis investigates the role of spatial configuration in shaping resident's experience of their neighbourhood. Studies to date have found that spatial configuration affects spatial behaviour and movement patterns (e.g., Hillier et al, 1993), however there has been little investigation of the cognitive processes that might underlie this relationship. Other research into cognition of the urban environment suggests that local spatial factors may play a role in cognitive processes (e.g., Hart & Moor, 1973), however these studies have not addressed global spatial configuration in quantitative

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Kang, Dongwoo. "Essays on Spatial Externality and Spatial Heterogeneity in Applied Spatial Econometrics." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/560840.

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This dissertation consists of three empirical essays of which contributions consist, first, in developing spatial weight matrices based on more than just pure geographical proximity for the modeling of interregional externalities. Second, my essays propose different approaches to discover spatial heterogeneity in the data generating processes, including the interregional externalities, under investigation. This dissertation provides Economic Geographers and Regional Scientists interested in the modeling and measurement of spatial externalities a set of practical examples based on new datasets

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Gehman, Andrew J. "The Effects of Spatial Aggregation on Spatial Time Series Modeling and Forecasting." Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/382669.

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Statistics<br>Ph.D.<br>Spatio-temporal data analysis involves modeling a variable observed at different locations over time. A key component of space-time modeling is determining the spatial scale of the data. This dissertation addresses the following three questions: 1) How does spatial aggregation impact the properties of the variable and its model? 2) What spatial scale of the data produces more accurate forecasts of the aggregate variable? 3) What properties lead to the smallest information loss due to spatial aggregation? Answers to these questions involve a thorough examination of two co

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Yue, Yu. "Spatially adaptive priors for regression and spatial modeling." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6059.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 3, 2009) Vita. Includes bibliographical references.

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Philip, Jean. "La pseudonégligence peut-elle rendre compte des asymétries de la perception de l'espace latéral en modalité tactilo-kinésthésique ?" Grenoble 2, 1995. http://www.theses.fr/1995GRE29020.

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La pseudonegligence observee chez les normaux (bowers et heilman, 1980) consiste a repondre a gauche du centre objectif quand on demande de partager des lignes horizontales par le milieu. Certains l'expliquent par la nature spatiale de la tache qui, en activant l'hemisphere d, entrainerait un "surdimensionnement" de la partie g du stimulus. Mais son instabilite souligne aussi la puissance du biais d'orientation vers la d. D'autres pensent que le sens de l'exploration determine celui des deviations, ou invoquent un amorcage de l'attention du cote ou debute l'exploration. Nous avons teste l'hypo

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Zaamoune, Mehdi. "Intégration et optimisation des grilles régulières de points dans une architecture SOLAP relationnelle." Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22538/document.

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Les champs continus sont des types de représentations spatiales utilisées pour modéliser des phénomènes tels que la température, la pollution ou l’altitude. Ils sont définis selon une fonction de mapping f qui affecte une valeur du phénomène étudié à chaque localisation p du domaine d’étude. Par ailleurs, la représentation des champs continus à différentes échelles ou résolutions est souvent essentielle pour une analyse spatiale efficace. L’avantage des champs continus réside dans le niveau de détails généré par la continuité, ainsi que la qualité de l’analyse spatiale fournie par la multi-rés

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Libri sul tema "Spatial"

Uhlig, Thomas. Wie Columbus fliegen lernte: Einblicke in eine einzigartige Weltraummission. Hanser, 2010.

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Griffith, Daniel A. Spatial Autocorrelation and Spatial Filtering. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-24806-4.

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Sherman, Michael. Spatial Statistics and Spatio-Temporal Data. John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470974391.

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Marty, Daniel. L' astronautique et les techniques spatiales. Presses universitaires de France, 1996.

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Ripley, Brian D. Spatial statistics. Wiley-Interscience, 2004.

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Stock, Markus, and Nicola Vöhringer, eds. Spatial Practices. V&R Unipress, 2014. http://dx.doi.org/10.14220/9783737000017.

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Döring, Jörg, and Tristan Thielmann, eds. Spatial Turn. transcript Verlag, 2008. http://dx.doi.org/10.14361/9783839406830.

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Million, Angela, Christian Haid, Ignacio Castillo Ulloa, and Nina Baur. Spatial Transformations. Routledge, 2021. http://dx.doi.org/10.4324/9781003036159.

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Million, Angela, Christian Haid, Ignacio Castillo Ulloa, and Nina Baur. Spatial Transformations. Routledge, 2021. http://dx.doi.org/10.4324/9781003036159.

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Barthelemy, Marc. Spatial Networks. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94106-2.

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Capitoli di libri sul tema "Spatial"

Di, Liping, and Eugene G. Yu. "Spatial Search." In Urban Informatics. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8983-6_37.

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AbstractUrban studies concern the evolution of spatial structure in cities, where information is often tied to location. The discovery of information is in a high-dimensional space based on spatial and temporal dimensions, where the spatial relationships of components play roles in studying urban evolution. Spatial search in urban studies has to deal with diverse aspects of data structures (structured versus unstructured), data spatial context (implicit versus explicit), data spatial relationships (containment versus intersection), data volume (large volume versus large variety), spatial searc

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Shekhar, Shashi, and Hui Xiong. "Spatial." In Encyclopedia of GIS. Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-35973-1_1236.

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Kulke, Elmar, and Nina Baur. "Spatial Transformations and Spatio-Temporal Coupling." In Spatial Transformations. Routledge, 2021. http://dx.doi.org/10.4324/9781003036159-14.

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Kulke, Elmar, and Nina Baur. "Spatial Transformations and Spatio-Temporal Coupling." In Spatial Transformations. Routledge, 2021. http://dx.doi.org/10.4324/9781003036159-14.

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Smith, Arnold. "Spatial Cognition Without Spatial Concepts." In Spatial Cognition. John Benjamins Publishing Company, 2000. http://dx.doi.org/10.1075/aicr.26.10smi.

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Johnston, R. J. "Spatial systems and spatial order." In Spatial Structures. Routledge, 2023. http://dx.doi.org/10.4324/9781003393146-2.

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Griffith, Daniel A. "Introduction." In Spatial Autocorrelation and Spatial Filtering. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-24806-4_1.

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Griffith, Daniel A. "Salient Properties of Geographic Connectivity Underlying Spatial Autocorrelation." In Spatial Autocorrelation and Spatial Filtering. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-24806-4_2.

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Griffith, Daniel A. "Sampling Distributions Associated with Spatial Autocorrelation." In Spatial Autocorrelation and Spatial Filtering. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-24806-4_3.

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Griffith, Daniel A. "Spatial Filtering." In Spatial Autocorrelation and Spatial Filtering. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-24806-4_4.

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Atti di convegni sul tema "Spatial"

Cartland, Robert F., and Anupam Madhukar. "High Contrast, 2D Spatial Light Modulators (SLMs) Using InGaAs/AlGaAs Quantum Wells Operating at 980nm." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.smd.4.

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2D arrays of light modulators operating at 980 nm have been designed, fabricated and tested for use in photonic neural networks. The device would also be useful in other photonic systems employing intensity SLMs such as joint transform correlators or optical cross-bar switches. The light modulators employ III-V semiconductor materials grown, using molecular beam epitaxy (MBE) , on GaAs substrates. Such III-V MQW modulators offer the high switching speeds required for the practical implementation of photonic systems.

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Underwood, Ian. "Liquid Crystal over Silicon Spatial Light Modulators - Principles and Prospects." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.stua.1.

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Burns, B. E., A. C. Ionescu, J. M. Geneczko, R. J. Grasso, and S. F. Davidson. "Silicon Spatial Light Modulator Fabrication." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.stub.4.

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Spatial light modulators (SLM) are utilized in systems which compensate for distortion of a laser beam caused by transmission through a distorting medium. The Northrop Grumman linear beam cleanup system [1] uses an SLM to modify the phase front of the input beam to cancel the phase changes produced along the transmission path. At longer wavelengths these phase changes may not be achievable with current liquid crystal or lead lanthanum zirconate titanate (PLZT) modulators. High laser power levels may also produce adverse effects in these materials if operated in transmission mode. The silicon S

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MATSUO, Shinji, Kouta TATENO, and Takashi KUROKAWA. "VCSEL-Based Smart Pixels." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.smb.2.

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Smart pixels that incorporate vertical-cavity surface-emitting lasers (VCSELs) have shown great potential for use in optical computing systems and photonic switching networks because the integration of the VCSELs makes optical circuits easy to construct. VCSELs are also a good match for electronic circuits because they operate at a low voltage and a low current. Many smart pixels that use VCSELs have been demonstrated [1-4]. In this paper, we describe VCSEL-based smart pixels that are integrated with photodetectors and electrical circuits in monolithic or hybrid structures. We also discuss the

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Teiwes, Stephan, Heiko Schwarzer, and Harald Aagedal. "On the storage capacity of pixelated SLMs in coherent-optical information processing systems." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.stue.6.

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Spatial light modulators (SLMs) play a key role for the development of programmable optical systems in information processing [3]. Electrically addressable SLMs are of special interest since they can be used to implement computer-generated transmission functions. Such a function is typically represented in a computer by a two-dimensional discrete data structure and can be dynamically mapped onto the pixelated micro-structures of the SLM. This mapping can be interpreted as a computer memory access where a section of the computer memory is copied to the SLM in order to modulate an illumination w

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McIntosh, K. A., L. J. Mahoney, K. M. Molvar, O. B. McMahon, M. Rothschild, and E. R. Brown. "Infrared Metallodielectric Photonic Crystals." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.smc.2.

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During the past several years there has been significant research involving the design, measurement, and theory of periodic dielectric structures that exhibit a photonic bandgap.1 These photonic crystal structures could be useful in many applications that require frequency specific optical modulators or reflectors. As demonstrated recently at microwave frequencies, photonic crystal structures that incorporate metallic scattering centers can exhibit large electromagnetic stop bands.2 The resulting structures are referred to as metallodielectric photonic crystals (MDPCs). We report here progress

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Grasso, Robert J., and Brent E. Burns. "Silicon Spatial Light Modulators for Atmospheric Aberration Compensation." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.stub.1.

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Silicon Spatial Light Modulators can be used with great effect to compensate for atmospheric induced aberrations that severely limit laser performance. In a program to improve both the beam quality and laser energy delivered to the target, Northrop Grumman has developed a novel linear phase conjugation aberration compensation technique. This technique utilizes a silicon Spatial Light Modulator (SLM) as a dynamic wavefront reversing element to undo aberrations induced by the atmosphere, platform motion, or both. A hologram written to a focal plane array camera (FPA) is transferred, pixel-by-pix

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Agranat, Aharon J., Michal Balberg, Meir Razvag, Shimon Vidro, and Eli Refaeli. "The Concept of Electroholgraphy and its Implementation in KLTN Crystals." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.swc.1.

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Electroholography (EH) is a generic concept in optoelectronics, which enables to govern the reconstruction process of volume holograms by an external electric field. EH is based on the use of the voltage controlled photorefractive (PR) effect in crystals at the paraelectric phase(1). The PR effect enables the recording of volume holograms in a crystal, by spatially modulating its index of refraction in response to light energy it absorbs. In crystals at the paraelectric phase the PR effect is voltage controlled, namely, one can control the efficiency of the effect by applying an external elect

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Pu, R., R. Jurrat, E. M. Hayes, C. W. Wilmsen, K. D. Choquette, and K. M. Geib. "Optical processing arrays based on VCSELs bonded directly to GaAs smart pixels." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.smb.4.

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VCSELs are near ideal light sources for free space, parallel optical interconnects since they are highly efficient, can be fabricated into 2D arrays and emit a low divergence column of light normal to the surface. However, integrating the VCSELs into smart pixels introduces fabrication problems since they can not be grown on foundry fabricated Si CMOS or GaAs MESFET circuits. Thus, the fabrication of complex pixels is difficult. Three methods of electrically connecting VCSELs to electronic chips have been discussed by Bryan et al. [1]; wire bonding, bridge bonding, and flip chip bonding to the

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Liu, Y. C., P. R. Barbier, F. G. Johnson, P. T. Ho, and G. L. Burdge. "InGaAs Photodiodes for Infrared-Sensitive Optically Addressed Spatial Light Modulators." In Spatial Light Modulators. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.stub.2.

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Currently available optically addressed spatial light modulators (OASLMs) are sensitive only to the visible and near infrared (< 1.1 μm) light [1]. For many applications OASLMs which are sensitive to infrared (IR) light at 1.55 μm are required or preferred. A common OASLM light-modulating material is liquid crystal (LC) which can be addressed by a thin film photosensor [2]. This scheme requires that the photosensor exhibits very low dark current to prevent the LC from switching on in the absence of write light, and high photosensitivity to switch the LC on in the presence of write light [3]

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Rapporti di organizzazioni sul tema "Spatial"

Lawson, Andrew. Bayesian Spatial and Spatio-Temporal Modeling in R. Instats Inc., 2024. http://dx.doi.org/10.61700/jsdeeudk51kk31519.

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Abstract (sommario):

This workshop provides a comprehensive introduction to advanced techniques for analyzing spatial and spatio-temporal data. While the examples used will be primarily from the health sciences, this four-day hands-on workshop is designed to equip PhD students, professors, and professional researchers with the skills to conduct cutting-edge research in various fields, including Geography, Epidemiology, Public Health, Biostatistics, Ecology, Sociology, and Political Science.

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Desmet, Klaus, and Esteban Rossi-Hansberg. Spatial Development. National Bureau of Economic Research, 2009. http://dx.doi.org/10.3386/w15349.

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Eeckhout, Jan, Roberto Pinheiro, and Kurt Schmidheiny. Spatial sorting. Institute for Fiscal Studies, 2013. http://dx.doi.org/10.1920/wp.ifs.2013.1318.

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Gandhi, Vijay, James Kang, and Shashi Shekhar. Spatial Databases. Defense Technical Information Center, 2007. http://dx.doi.org/10.21236/ada473104.

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Redding, Stephen. Spatial Economics. National Bureau of Economic Research, 2024. http://dx.doi.org/10.3386/w33125.

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Desmet, Klaus, and Fernando Parro. Spatial Dynamics. National Bureau of Economic Research, 2025. https://doi.org/10.3386/w33443.

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Stockinger, Kurt, and Kesheng Wu. Improved searching for spatial features in spatio-temporal data. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/833576.

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Redding, Stephen, and Esteban Rossi-Hansberg. Quantitative Spatial Economics. National Bureau of Economic Research, 2016. http://dx.doi.org/10.3386/w22655.

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Thiessen, R. L., and J. R. Eliason. Geologic spatial analysis. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6160871.

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Packard, Norman H. Complex Spatial Dynamics. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada245830.

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