Bibliografías temáticas / Spacial representation

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Literatura académica sobre el tema "Spacial representation"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 1 de febrero de 2022

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Artículos de revistas sobre el tema "Spacial representation"

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Fujii, Toshiaki, Masahide Kaneko, and Hiroshi Harashima. "Three-Dimensional Image. Representation of 3 D Spacial Information by Rays and Its Application." Journal of the Institute of Television Engineers of Japan 50, no. 9 (1996): 1312–18. http://dx.doi.org/10.3169/itej1978.50.1312.

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Katsulai, Hiroshi. "Representation and Matching of Two-dimensional Curvilinear Figures Considering Curvatures and Spatial Positions." Journal of Robotics and Mechatronics 6, no. 5 (1994): 425–33. http://dx.doi.org/10.20965/jrm.1994.p0425.

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Autonomous mobile robots must visually recognize their three-dimensional environment so that they can quickly discover and avoid obstacles to their movement or find targets. In order to accomplish this objective, it is a matter of essential importance to match curvilinear segments of a two-dimensional stereo dynamic image sequence. This paper proposes a method in which what is called constant-curvature arc data, which include not only curvatures but also the relationship between spacial positions, are used for representing curves. This paper also suggests a method to match two-dimensional curv
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3

Abramova, V. I., and Yu V. Arkhangelskaya. "Field and Mountain in the Russian Linguistic World Picture: Representation of the Spacial Linguocultural Code." Philologos 48, no. 1 (2021): 5–12. http://dx.doi.org/10.24888/2079-2638-2021-48-1-5-12.

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Zhang, Li Gang, Wen Juan Lou, and Ming Feng Huang. "Accurate Wind-Induced Response Analysis of Long-Span Structure Based on Quick Modal Response Estimate for Mode Selection." Advanced Materials Research 243-249 (May 2011): 844–53. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.844.

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By the combination of POD method and mode superposition method, the eigenvector similarity factor is introduced on the representation of the similarity between the load spacial distribution and the structural mode. Meanwhile, the eigenvalue got from the wind pressure field decomposition indicates the relative ratio of the energy associated with the corresponding load spacial distribution to the total of the wind load energy. It is proved that the eigenvector similarity factor and the eigenvalues are two of most important factors when measuring the relative significance of each modal response.
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Khoromskij, Boris N., and Sentao Miao. "Superfast Wavelet Transform Using Quantics-TT Approximation. I. Application to Haar Wavelets." Computational Methods in Applied Mathematics 14, no. 4 (2014): 537–53. http://dx.doi.org/10.1515/cmam-2014-0016.

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AbstractWe propose a superfast discrete Haar wavelet transform (SFHWT) as well as its inverse, using the low-rank Quantics-TT (QTT) representation for the Haar transform matrices and input-output vectors. Though the Haar matrix itself does not have a low QTT rank approximation, we show that factor matrices used at each step of the traditional multilevel Haar wavelet transform algorithm have explicit QTT representations of low rank. The SFHWT applies to a vector representing a signal sampled on a uniform grid of size ${N=2^d}$. We develop two algorithms which roughly require square logarithmic
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Raheem, Mazin Ismael. "Evaluation of Environmentally Urban Content Depending on Digital Medium." Association of Arab Universities Journal of Engineering Sciences 26, no. 3 (2019): 136–44. http://dx.doi.org/10.33261/jaaru.2019.26.3.015.

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This research suggest a technique for evaluating the urban content environmentally depending on digital media, throughout identifying the creative analytic techniques that develops the simple urban raster which is known as Digital Elevation Models( DEMs)Additionally , we prepare a group of systems that adopt 3D representation through simple drawing instruments, display environment and 3D spacial analysis.They are supporting programs for the concept of 3D representation and analysis, not the building specially in large scales. Now the research problem emerged, represented by: obviously deficien
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Li, Qi, and Fangying Song. "Splitting spectral element method for fractional reaction-diffusion equations." Journal of Algorithms & Computational Technology 14 (January 2020): 174830262096670. http://dx.doi.org/10.1177/1748302620966705.

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In this paper, we propose a second-order operator splitting spectral element method for solving fractional reaction-diffusion equations. In order to achieve a fast second-order scheme in time, we decompose the original equation into linear and nonlinear sub-equations, and combine a quarter-time nonlinear solver and a half-time linear solver followed by final quarter-time nonlinear solver. The spatial discretization is eigen-decomposition based on spectral element method. Since this method gives a full diagonal representation of the fractional operator and gets an exponential convergence in spa
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Sapiński, Tomasz, Dorota Kamińska, Adam Pelikant, and Gholamreza Anbarjafari. "Emotion Recognition from Skeletal Movements." Entropy 21, no. 7 (2019): 646. http://dx.doi.org/10.3390/e21070646.

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Automatic emotion recognition has become an important trend in many artificial intelligence (AI) based applications and has been widely explored in recent years. Most research in the area of automated emotion recognition is based on facial expressions or speech signals. Although the influence of the emotional state on body movements is undeniable, this source of expression is still underestimated in automatic analysis. In this paper, we propose a novel method to recognise seven basic emotional states—namely, happy, sad, surprise, fear, anger, disgust and neutral—utilising body movement. We ana
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Domadiya, Prashant, Pratik Shah, and Suman K. Mitra. "Shadow-Free, Expeditious and Precise, Moving Object Separation from Video." International Journal of Image and Graphics 18, no. 01 (2018): 1850005. http://dx.doi.org/10.1142/s0219467818500055.

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The foreground–background separation is an essential part of any video-based surveillance system. Gaussian Mixture Models (GMM) based object segmentation method accurately segments the foreground, but it is computationally expensive. In contrast, single Gaussian-based segmentation is computationally inexpensive but inaccurate because it can not handle the variations in the background. There is a trade-off between computation efficiency and precision in the segmentation approach. From the experimental observations, the variations such as lighting variations, shadows, background motion, etc., af
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Maldonado, Tito, Jorge A. Amador, Erick R. Rivera, Hugo G. Hidalgo, and Eric J. Alfaro. "Examination of WRF-ARW Experiments Using Different Planetary Boundary Layer Parameterizations to Study the Rapid Intensification and Trajectory of Hurricane Otto (2016)." Atmosphere 11, no. 12 (2020): 1317. http://dx.doi.org/10.3390/atmos11121317.

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Hurricane Otto (2016) was characterised by remarkable meteorological features of relevance for the scientific community and society. Scientifically, among the most important attributes of Otto is that it underwent a rapid intensification (RI) process. For society, this cyclone severely impacted Costa Rica and Nicaragua, leaving enormous economic losses and many fatalities. In this study, a set of three numerical simulations are performed to examine the skill of model estimations in reproducing RI and trajectory of Hurricane Otto by comparing the results of a global model to a regional model us
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Tesis sobre el tema "Spacial representation"

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Ventura, Leonardo Carneiro. "M?sica dos espa?os: paisagem sonora do Nordeste no movimento armorial." Universidade Federal do Rio Grande do Norte, 2007. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16995.

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Made available in DSpace on 2014-12-17T15:25:24Z (GMT). No. of bitstreams: 1 LeonardoCV.pdf: 935854 bytes, checksum: bc833306122bf277373ae2c39d0928fc (MD5) Previous issue date: 2007-09-13<br>This work exams the presence of music in the imaginary constitution of spaces, taking as study s object part of the musical production of the Armorial Movement, officially casted in 1970 in the city of Recife, Pernambuco. From that so called, by the Armorial s discourse, the essence of the brazilian northeastern popular art , the armorialists has intended to make an art that express an idea of northeas
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Silva, Michel Jairo Vieira da. "Segrega??o socioespacial e turismo: estudo da representa??o f?lmica criada pelos turistas e residentes sobre Natal Rio Grande do Norte." Universidade Federal do Rio Grande do Norte, 2011. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18489.

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Made available in DSpace on 2015-02-24T20:17:23Z (GMT). No. of bitstreams: 1 MichelJVS_DISSERT.pdf: 5644903 bytes, checksum: c8bdd9fe13f9b806623ce8c3346831e9 (MD5) Previous issue date: 2011-06-09<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>This study emerges and develops, from a note by Italo Calvino, who in his novel Invisible Cities advised to avoid saying "that sometimes different cities follow on the same site and with the same name, born and die without knowing, without communication among itself ". The research with a transdisciplinary work ( using elements of soc
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3

Awang, Rambli Dayang Rohaya. "Factors affecting spacial awareness in non-stereo visual representations of virtual, real and digital image environments." Thesis, Loughborough University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418384.

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Perry, Victoria Louise. "Understanding and use of small-scale models as representations of large-scale spaces, in 3 to 6 year old children : an investigation of the effects of varying task and method." Thesis, University of Stirling, 2000. http://hdl.handle.net/1893/1522.

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Spatial representations are external, physical entities, which are used to symbolise real world environments. These kinds of symbols provide information about the world, and shape the way that we think about it. Previous research into children's understanding and use of spatial representations has led to differing conclusions about how and when such abilities develop. This may be due to the diversity of different tasks and methods which have been adopted in the past. The aim of this thesis was to provide a systematic investigation of some of these tasks and methods, in order to establish wheth
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5

Bétrancourt, Mireille. "Facteurs spaciaux et temporels dans le traitement cognitif des complexes texte-figure." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0132.

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Il est communément admis que les figures améliorent la compréhension et la mémorisation de textes. Cependant, les processus cognitifs sous-jacents à ce phénomène sont encore peu connus. L'objectif de cette thèse est d'étudier les processus cognitifs intervenant dans le traitement des complexes texte-figure par le biais de l'étude de l'influence de facteurs de présentation spatiaux et temporels. Pour la première étude, nous avons mené trois expériences pour comparer trois formats de présentation sur ordinateur: une présentation conventionnelle, ou textes et figures sont présentes sur des portio
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6

Falcade, Ivanira. "Le paysage comme représentation spaciale : le paysage viticole comme symbole des indications de provenance des vins des régions Vale dos Vinhedos, Pinto Bandeira et Monte Belo (Brésil)." Phd thesis, Université de Bourgogne, 2011. http://tel.archives-ouvertes.fr/tel-00808049.

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Le sujet de cette thèse est le paysage dans sa spécificité viticole analysée comme représentation spatiale dans le processus de construction de l'espace géographique de la vitiviniculture et aussi dans l'utilisation des images du paysage viticole comme l'image spatiale des vins des régions des Indications de Provenance (IP) Vale dos Vinhedos, Pinto Bandeira et Monte Belo (Brésil). Les sources théoriques sont en lien avec la Géographie Critique et la Géographie Culturelle. L'objectif a été d'expliquer le paysage viticole comme représentation spatiale des régions et d'analyser l'image du paysage
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7

Falcade, Ivanira. "A paisagem como representação espacial : a paisagem vitícola como símbolo das indicações de procedência de vinhos das regiões Vale dos Vinhedos, Pinto Bandeira e Monte Belo (Brasil)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/36052.

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Le sujet de cette thèse est le paysage dans sa spécificité viticole analysée comme représentation spatiale dans le processus de construction de l'espace géographique de la vitiviniculture et aussi dans l'utilisation des images du paysage viticole comme l’image spatiale des vins des régions des Indications de Provenance (IP's) Vale dos Vinhedos, Pinto Bandeira et Monte Belo (Brésil). Les sources théoriques sont en lien avec la Géographie Critique et la Géographie Culturelle. L'objectif a été d'expliquer le paysage viticole comme représentation spatiale des régions et d’analyser l'image du paysa
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8

Ouzerdine, Amir. "Le relogement à Annaba : un paradoxe entre normes, politiques d'aménagement et réalités urbaines." Thesis, Bordeaux 3, 2018. http://www.theses.fr/2018BOR30052.

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La ville algérienne subit depuis ces dernières décennies de profondes transformations de ses territoires suite à une urbanisation galopante, une mobilité croissante, une recomposition socio-spatiale et une diversification des enjeux collectifs et individuels. La recomposition de ces territoires urbains, centraux et périphériques, est soumise à des normes d’habitation et à des règles d’urbanisme, qui ont une dimension universelle et qui s’appliquent à l’ensemble des tissus urbains. Ces normes et ces règles visent à la réalisation d’une part, de lotissements d’habitat individuel et d’autre part
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Libros sobre el tema "Spacial representation"

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Spacing Law and Politics: The Constitution and Representation of the Juridical. Taylor & Francis Group, 2016.

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Dahlberg, Leif. Spacing Law and Politics: The Constitution and Representation of the Juridical. Taylor & Francis Group, 2017.

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Beeston, Alix. In and Out of Sight. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190690168.001.0001.

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This book reappraises the connections between modernist writing and photography in the light of new work in visual culture studies that emphasizes the interplay between still and moving images. Arguing for the importance of photography to the work of four major modernist authors—Gertrude Stein, Jean Toomer, John Dos Passos, and F. Scott Fitzgerald—it proposes a new theory of composite literary form in the first half of the twentieth century. Segmented and reiterative, composite modernist writing is shaped by the figure of the woman-in-series, whose appearances and disappearances map its connec
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Speicher, Roland. Random banded and sparse matrices. Edited by Gernot Akemann, Jinho Baik, and Philippe Di Francesco. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198744191.013.23.

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This article discusses some mathematical results and conjectures about random band matrix ensembles (RBM) and sparse matrix ensembles. Spectral problems of RBM and sparse matrices can be expressed in terms of supersymmetric (SUSY) statistical mechanics that provides a dual representation for disordered quantum systems. This representation offers important insights into nonperturbative aspects of the spectrum and eigenfunctions of RBM. The article first presents the definition of RBM ensembles before considering the density of states, the behaviour of eigenvectors, and eigenvalue statistics for
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Capítulos de libros sobre el tema "Spacial representation"

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"Spacial Representation for Artificial Chemistry Based on Small-World Networks." In Artificial Life IX. The MIT Press, 2004. http://dx.doi.org/10.7551/mitpress/1429.003.0086.

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Charbonneau, Paul. "Traffic Jams." In Natural Complexity. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691176840.003.0007.

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This chapter considers the occurrence of traffic jams in the flow of moving automobiles as an example of complex collective behavior emerging from the interactions of system elements. It begins with a discussion of the basic design principle of an automobile traffic model and the numerical implementation of the model using the Python code. It then describes a representative simulation involving an ensemble of 300 cars initially at rest and distributed randomly, with a mean spacing of 10 units. It also examines how the traffic jam model behaves, traffic jams as avalanches, and the self-organized criticality of car traffic. The chapter includes exercises and further computational explorations, along with a suggested list of materials for further reading.
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White, Marcus R., and Nano Langenheim. "A Spatio-Temporal Decision Support System for Designing With Street Trees." In Geospatial Intelligence. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8054-6.ch025.

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This article describes how tree species and spacing is an integral part of street design. 3D modelled trees have traditionally been computationally prohibitive to use within precinct scaled urban design models, thus, tree choices in street design are typically limited to database or 2D representations limiting engagement with spatio-temporal issues. This article provides an overview of urban design tree modelling and technology emerging outside of the discipline, then proposes an urban tree decision support system (DSS) drawing from advances in computational botany, entertainment industries and light engineering. The DSS is tested at both street and precinct scale using two case studies. The results demonstrate it is now feasible to integrate detailed 3D trees into urban design models allowing rapid scenario testing of tree placement, species selection, size, alongside the visual and solar impact of these choices. The proposed DSS promotes consideration of spatio-temporal characteristics of trees and a greater level integration of tree choices in the urban design process than previously possible.
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"variety of span lengths, widths, number of grlders and slab thickness were analyzed. For two 50 ft. spans with seven girders (slab aspect ratio of 0.12) the value of D in the S/D formula varies between 6.1 and 7.96 for midspan center girder depending on the slab to girder stiffness ratio. This is in lieu of the 5.5 specified in AASHTO Standard Specification. Perhaps more representative are results for a 100 ft., two span continuous bridge with five girders spaced at 9 ft, where D varies between 8.4 and 10.8. Another Interesting result in Walker's report is regarding the structural idealization of the bridge. It has been found that the simple grid model can represent the essential behavior of the bridge as the more exact models do. The grid model was constructed such that the transverse beams represent the equivalent slab and diaphragms (if present) and the longitudinal beams represent the longitudinal composite girders. The fact that the grid model gives good representation of the essential behavior of the bridge can not be generalized. The grid model has certain limitations, however it gives a better representation of the bridge behavior than does a simple two-value S/D rule. A simple micro computer implementation of a grid model is seen by Walker as a better method than the S/D formula to predict lateral load distribution. Recently Hays, Sessions and Berry (8), have demonstrated that the effect of span length, which is neglected in AASHTO can be considerable. They found that AASHTO results are slightly unconservative for short spans and quite conservative for longer spans. Furthermore they compared the results of a finite element analysis with field test results and concluded that the comparison showed generally good agreement. A wide range of load distribution methods are available in the technical literature (9-17). These methods range from empirical methods, as the one recommended by AASHTO and described above, to sophisticated computer-based solution techniques which take into consideration the three-dimensional response of the bridge. The computer methods utilize a wide rang of structural idealization. Some use a simple equivalent anisotropic plate or grid work while others use sophisticated finite element models that consider detailed aspects of the interaction between the components of the bridge superstructure. The parameters which influence the load distribution most are; the number of girders and their spacing, the span length, and the girder moment of Inertia and slab thickness." In Composite Steel Structures. CRC Press, 1987. http://dx.doi.org/10.1201/9781482286359-7.

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Actas de conferencias sobre el tema "Spacial representation"

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Casasent, David P., and Michael A. Sipe. "Feature spacing trajectory representation and processing for active vision." In Photonics East '96, edited by David P. Casasent. SPIE, 1996. http://dx.doi.org/10.1117/12.256297.

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Zhou, Bin, Qing Wang, and Hengheng Quan. "DOA estimation for large array with nonuniform spacing based on sparse representation." In 2018 10th International Conference on Wireless Communications and Signal Processing (WCSP). IEEE, 2018. http://dx.doi.org/10.1109/wcsp.2018.8555584.

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Han, Kun, Dewei Wu, and Lei Lai. "Brain-Inspired Spatial Representation Based on Grid Cells with Finite-Spacing Firing Field." In 2019 Chinese Automation Congress (CAC). IEEE, 2019. http://dx.doi.org/10.1109/cac48633.2019.8996913.

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Tao, Longbin, Hao Song, and Subrata Chakrabarti. "Spacing Effect on Hydrodynamics of Two Adjacent Offshore Caissons." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79226.

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In this paper, scaled boundary finite-element method (SBFEM) is extended to study wave interaction with two adjacent rectangular cylinders. In addition to the advantages in accurate and efficient representation of singularities and unbounded domains, the modified SBFEM shows distinct capability in dealing with wave diffraction including adjacent multiple structure interactions. Comparisons of wave runup and wave forces on each cylinder of the two adjacent offshore caissons with traditional panel method demonstrate a high accuracy achieved with excellent computational efficiency. Detailed resul
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Kielb, Jason J., Reza S. Abhari, and Michael G. Dunn. "Experimental and Numerical Study of Forced Response in a Full-Scale Rotating Turbine." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0263.

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Forced response predictive capabilities have advanced rapidly in the past decade because of increased emphasis on high cycle fatigue concerns. Progress in computation fluid dynamic (CFD) codes has allowed for the prediction of complex unsteady flows, but fidelity and accuracy of the unsteady solutions is uncertain. This uncertainty is due in part to a lack of representative experimental data to validate the forced response calculations. This study presents experimental results of both on-blade unsteady pressure and structural response in a full-scale rotating turbine at representative steady a
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Vijiapurapu, Sowjanya, and Jie Cui. "Numerical Simulation of Turbulent Flows in Ribbed Pipes." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80565.

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The Reynolds averaged Navier-Stokes (RANS) equations were solved along with three turbulence models, namely κ-ε, κ-ω, and Reynolds stress models (RSM), to study the fully developed turbulent flows in circular pipes roughened by repeated square ribs. The spacing between the ribs was varied to form three representative types of surface roughness; d–type, intermediate, and k–type. Solutions of these flows at two Reynolds numbers were obtained using the commercial computational fluid dynamics (CFD) software Fluent. The numerical results were validated against experimental measurements and other nu
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Merzari, Elia, and Paul Fischer. "Controlling Turbulence in Tight Rod Bundles." In ASME 2013 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fedsm2013-16393.

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The flow in rod bundles is of key importance in a variety of engineering fields. It is representative, for instance, of the flow in a nuclear reactor core and the flow in a tube and shell heat exchanger. For particularly tight rod bundles (pitch to diameter ratio lower than 1.1 in hexagonal arrays) the flow is subject to a Kelvin-Helmholtz instability that is present in both laminar and turbulent flows and is likely to influence transition. Such instability has been proven to exist in bare bundles and even in bundles containing spacing devices. In fact, rod bundles are typically separated by d
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Pal, Kaushik, and Donald L. Cronin. "Static and Dynamic Characteristics of Spot Welded Sheet Metal Beams." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0265.

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Abstract Although widely used as structural components in the auto industry, spot welded sheet metal beams manifest static and dynamic behavior that is not well characterized. For the present study, sample beams of three representative cross-sections — hat, box and box with partition — were fabricated of sheet steel. The spacing between the spot welds that hold these sections together was varied from 25.4 mm (1 inch) to 203.2 mm (8 inch) using a 25.4 mm (1 inch) increment. The beams were subjected to static bending and static torsion tests, and bending and torsional stiffnesses were determined
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Wu, Xiaoyu, Hengyun Zhang, Zhehua Zhu, Shen Xu, and Yuchen Deng. "Numerical Analysis of Parametric Effects of Tube-Strip Heat Exchanger for Fuel Cell Vehicles." In ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/mnhmt2019-4033.

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Abstract Fuel cell vehicles (FCVs) are facing more severe heat dissipation challenges since the fuel cell stack is required to operate at a lower temperature and thus smaller heat exchanger temperature difference. Thorough analysis of the parametric effects is required to maximize the thermal performance. In this paper, a numerical analysis of the tube-strip heat exchanger is conducted for the targeted application in a high performance passenger FCV. The representative unit cell is used to model the detailed fluid flow and heat transfer at both hot and cold sides in the theoretical framework o
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Cresci, Irene, Peter T. Ireland, Marko Bacic, Ian Tibbott, and Anton Rawlinson. "Velocity and Turbulence Intensity Profiles Downstream of a Long Reach Endwall Double Row of Film Cooling Holes in a Gas Turbine Combustor Representative Environment." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-42307.

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The continuous demand from the airlines for reduced jet engine fuel consumption results in increasingly challenging high pressure turbine nozzle guide vane (NGV) working conditions. The capability to reproduce realistic boundary conditions in a rig at the combustor-turbine interaction plane is a key feature when testing NGVs in an engine-representative environment. A large scale linear cascade rig to investigate NGV leading edge cooling systems has been designed with particular attention being paid to creating engine representative conditions at the inlet to the NGVs. The combustor simulator r
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