Relevant bibliographies by topics / Three dimensional space

Contents

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

Academic literature on the topic 'Three dimensional space'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 June 2024

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Journal articles on the topic "Three dimensional space"

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Ahmadi, P. "Cohomogeneity One Dynamics on Three Dimensional Minkowski Space." Zurnal matematiceskoj fiziki, analiza, geometrii 15, no. 2 (September 25, 2016): 155–69. http://dx.doi.org/10.15407/mag15.02.155.

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Rajesh, Chelluru Venkata Surya, and Narise Venkatesh. "Multi-Joint Robot Transfer System in Three Dimensional Space." International Journal of Trend in Scientific Research and Development Volume-2, Issue-1 (December 31, 2017): 1132–33. http://dx.doi.org/10.31142/ijtsrd7192.

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Egorov, Yaroslav, and Victor Fainshtein. "Kinematic characteristics of stealth CME in three-dimensional space." Solar-Terrestrial Physics 8, no. 3 (September 30, 2022): 13–21. http://dx.doi.org/10.12737/stp-83202202.

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We have studied and compared kinematic characteristics of the motion of coronal mass ejections (CMEs) in three-dimensional (3D) space for three groups of CMEs for the period 2008–2014. These CME groups include: (i) stealth CMEs, (ii) CMEs that originate on the visible side of the Sun (for an observer on Earth) and are associated with X-ray flares and filament eruption, (iii) all CMEs registered during the given period. Stealth CMEs are CMEs that emerge on the visible side of the Sun and are unrelated to X-ray flares, as well as to filament eruption. We compare kinematic and some physical characteristics of these CMEs with those of a separate group of CMEs, classified as stealth in [D’Huys et al., 2014]. After comparing the characteristics of the three CME groups (i)–(iii), we concluded that stealth CMEs have, on average, the lowest velocity, kinetic energy, mass and angular size, central position angle, and also the angle φ between the direction of CME motion in the ecliptic plane and the Sun–Earth line and the angle λ between the direction of CME motion in 3D space and the ecliptic plane. We also discuss distributions of CMEs of different types by kinematic characteristics.
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Hall, G. S., T. Morgan, and Z. Perj�s. "Three-dimensional space-times." General Relativity and Gravitation 19, no. 11 (November 1987): 1137–47. http://dx.doi.org/10.1007/bf00759150.

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Yoon, Dae Won. "Surfaces of revolution in the three dimensional pseudo-Galilean space." Glasnik Matematicki 48, no. 2 (December 16, 2013): 415–28. http://dx.doi.org/10.3336/gm.48.2.13.

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Skaar, S. B., W. H. Brockman, and W. S. Jang. "Three-Dimensional Camera Space Manipulation." International Journal of Robotics Research 9, no. 4 (August 1990): 22–39. http://dx.doi.org/10.1177/027836499000900402.

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Schoumans, N., A. C. Sittig, and J. J. D. van der Gon. "Pointing in Three-Dimensional Space." Perception 25, no. 1_suppl (August 1996): 136. http://dx.doi.org/10.1068/v96p0104.

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We studied the localisation of objects in three-dimensional space. We had subjects direct a small pointer towards a small goal object, from 20 positions on a virtual sphere around the goal. Images of the pointer and the goal were generated by presenting computer images to the subject's left and right eye alternately. The distance between the goal and pointer was approximately 10 deg arc, the length of the pointer was approximately 2 deg arc. Subjects could manipulate the pointer by pressing specific keys on the keyboard. We tested 7 subjects. The adjustments were repeated 5 – 7 times, which resulted in a cluster of indicated directions for each of the 20 pointer positions and each subject. These clusters appeared to lie in a plane perpendicular to the frontoparallel plane. In other words, the variance in the in-depth component of the adjustments was considerably larger than the frontoparallel component. Subjects showed consistent and individual deviations in the in-depth adjustments. All subjects showed very similar constant deviations in the frontoparallel components of the adjustments. These constant deviations proved comparable to the deviations demonstrated earlier in a three-dot alignment task in the frontoparallel plane. We conclude that the three-dimensional pointing task can be seen as a combination of two independent tasks: an in-depth adjustment and a frontoparallel task.
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Castle, Toen, Myfanwy E. Evans, Stephen T. Hyde, Stuart Ramsden, and Vanessa Robins. "Trading spaces: building three-dimensional nets from two-dimensional tilings." Interface Focus 2, no. 5 (January 25, 2012): 555–66. http://dx.doi.org/10.1098/rsfs.2011.0115.

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We construct some examples of finite and infinite crystalline three-dimensional nets derived from symmetric reticulations of homogeneous two-dimensional spaces: elliptic ( S 2 ), Euclidean ( E 2 ) and hyperbolic ( H 2 ) space. Those reticulations are edges and vertices of simple spherical, planar and hyperbolic tilings. We show that various projections of the simplest symmetric tilings of those spaces into three-dimensional Euclidean space lead to topologically and geometrically complex patterns, including multiple interwoven nets and tangled nets that are otherwise difficult to generate ab initio in three dimensions.
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LEE, Geunho, Kazutaka TATARA, Yasuhiro NISHIMURA, and Nak Young CHONG. "2A1-G10 Decentralized Self-configuration of Robot Swarms in Three Dimensional Space." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2010 (2010): _2A1—G10_1—_2A1—G10_2. http://dx.doi.org/10.1299/jsmermd.2010._2a1-g10_1.

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Artikbaev, A., and B. M. Mamadaliyev. "Features of the geometry of the five-dimensional pseudo-Euclidean space of index two." E3S Web of Conferences 531 (2024): 03007. http://dx.doi.org/10.1051/e3sconf/202453103007.

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The article is devoted to the study of the geometry of subspaces of a five-dimensional pseudo-Euclidean space. This space is attractive because all kinds of semi-Euclidean, semi-pseudo-Euclidean, hyperbolic three-dimensional spaces with projective metrics are realized in its subspaces. In the sphere of the imaginary radius of space, de Sitter space is realized. Here there is a space with projective metrics in the sense of Cayley-Klein. It is a three-dimensional space with a metric that preserves space on itself when mapped linearly. The corresponding linear transformation is called the motion of this space. An interpretation of de Sitter space in a four-dimensional pseudo-Euclidean space is proved. Studies have confirmed that in subspaces of space , in addition to elliptic spaces, there is a geometry of three-dimensional spaces with projective metrics. De Sitter space of the second kind is also realized in the sphere of imaginary radius. De Sitter space is a geodesic mapping in four-dimensional Minkowski space.
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Dissertations / Theses on the topic "Three dimensional space"

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Tucker, Andrew James, and n/a. "Visual space attention in three-dimensional space." Swinburne University of Technology, 2006. http://adt.lib.swin.edu.au./public/adt-VSWT20070301.085637.

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Current models of visual spatial attention are based on the extent to which attention can be allocated in 2-dimensional displays. The distribution of attention in 3-dimensional space has received little consideration. A series of experiments were devised to explore the apparent inconsistencies in the literature pertaining to the allocation of spatial attention in the third dimension. A review of the literature attributed these inconsistencies to differences and limitations in the various methodologies employed, in addition to the use of differing attentional paradigms. An initial aim of this thesis was to develop a highly controlled novel adaptation of the conventional robust covert orienting of visual attention task (COVAT) in depth defined by either binocular (stereoscopic) or monocular cues. The results indicated that attentional selection in the COVAT is not allocated within a 3-dimensional representation of space. Consequently, an alternative measure of spatial attention in depth, the overlay interference task, was successfully validated in a different stereoscopic depth environment and then manipulated to further examine the allocation of attention in depth. Findings from the overlay interference experiments indicated that attentional selection is based on a representation that includes depth information, but only when an additional feature can aid 3D selection. Collectively, the results suggest a dissociation between two paradigms that are both purported to be measures of spatial attention. There appears to be a further dissociation between 2-dimensional and 3-dimensional attentional selection in both paradigms for different reasons. These behavioural results, combined with recent electrophysiological evidence suggest that the temporal constraints of the 3D COVAT paradigm result in early selection based predominantly on retinotopic spatial coordinates prior to the complete construction of a 3-dimensional representation. Task requirements of the 3D overlay interference paradigm, on the other hand, while not being restricted by temporal constraints, demand that attentional selection occurs later, after the construction of a 3-dimensional representation, but only with the guidance of a secondary feature. Regardless of whether attentional selection occurs early or late, however, some component of selection appears to be based on viewer-centred spatial coordinates.
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Tucker, Andrew James. "Visual space attention in three-dimensional space." Australasian Digital Thesis Program, 2006. http://adt.lib.swin.edu.au/public/adt-VSWT20070301.085637/index.html.

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Thesis (PhD) - Faculty of Life and Social Sciences, Swinburne University of Technology, 2006.
Submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy, Faculty of Life and Social Sciences, Swinburne University of Technology - 2006. Typescript. "March 2006". Includes bibliographical references (p. 153-173).
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Minor, Sue Blose. "Children's understanding of projective space in two-dimensional representations of three-dimensional space /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487688973683519.

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Fazai, Sallouha. "Three-Dimensional Space to Assess Cloud Interoperability." Monterey, California. Naval Postgraduate School, 2013. http://hdl.handle.net/10945/32818.

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Cloud computing is an emerging technology that promises the reduction of IT costs (personnel, software, and hardware) for enterprises, as well as individual users. Despite this appealing offer, this technology has still not been widely adopted in the enterprise IT. Users are still worried about vendor lock-in; they will not be able to move their data and applications from one cloud provider to another easily or return to in-house IT. Currently, users do not have the means to specify and assess the interoperability level of the cloud provider that they desire to entrust their IT operations. In this thesis work, we provide a three-dimensional space to assess and visualize the interoperability level of any cloud provider so that cloud users can select the providers services that better fit their interoperability needs.
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Shonoda, Emad N. Naseem. "On Ruled Surfaces in three-dimensional Minkowski Space." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-63555.

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In a Minkowski three dimensional space, whose metric is based on a strictly convex and centrally symmetric unit ball , we deal with ruled surfaces Φ in the sense of E. Kruppa. This means that we have to look for Minkowski analogues of the classical differential invariants of ruled surfaces in a Euclidean space. Here, at first – after an introduction to concepts of a Minkowski space, like semi-orthogonalities and a semi-inner-product based on the so-called cosine-Minkowski function - we construct an orthogonal 3D moving frame using Birkhoff’s left-orthogonality. This moving frame is canonically connected to ruled surfaces: beginning with the generator direction and the asymptotic plane of this generator g we complete this flag to a frame using the left-orthogonality defined by ; ( is described either by its supporting function or a parameter representation). The plane left-orthogonal to the asymptotic plane through generator g(t) is called Minkowski central plane and touches Φ in the striction point s(t) of g(t). Thus the moving frame defines the Minkowski striction curve S of the considered ruled surface Φ similar to the Euclidean case. The coefficients occurring in the Minkowski analogues to Frenet-Serret formulae of the moving frame of Φ in a Minkowski space are called “M-curvatures” and “M-torsions”. Here we essentially make use of the semi-inner product and the sine-Minkowski and cosine-Minkowski functions. Furthermore we define a covariant differentiation in a Minkowski 3-space using a new vector called “deformation vector” and locally measuring the deviation of the Minkowski space from a Euclidean space. With this covariant differentiation it is possible to declare an “M-geodesicc parallelity” and to show that the vector field of the generators of a skew ruled surface Φ is an M-geodesic parallel field along its Minkowski striction curve s. Finally we also define the Pirondini set of ruled surfaces to a given surface Φ. The surfaces of such a set have the M-striction curve and the strip of M-central planes in common
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Kim, Misun. "Three-dimensional space representation in the human brain." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10053145/.

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Brain structures that support spatial cognition by encoding one’s position and direction have been extensively studied for decades. In the majority of studies, neural substrates have been investigated on a horizontal two-dimensional plane, whereas humans and other animals also move vertically in a three-dimensional (3D) world. In this thesis, I investigated how 3D spatial information is represented in the human brain using functional MRI experiments and custom-built 3D virtual environments. In the first experiment, participants moved on flat, tilted-up or tilted-down pathways in a 3D lattice structure. Multivoxel pattern analysis revealed that the anterior hippocampus expressed 3D location information that was similarly sensitive to the vertical and horizontal axes. The retrosplenial cortex and posterior hippocampus represented direction information that was only sensitive to the vertical axis. In the second experiment, participants moved in a virtual building with multiple levels and rooms. Using an fMRI repetition suppression analysis, I observed a hierarchical representation of this 3D space, with anterior hippocampus representing local information within a room, while retrosplenial cortex, parahippocampal cortex and posterior hippocampus represented room information within the wider building. As in the first experiment, vertical and horizontal location information was similarly encoded. In the last experiments, participants were placed into a virtual zero-gravity environment where they could move freely along all 3 axes. The thalamus and subiculum expressed horizontal heading information, whereas retrosplenial cortex showed dominant encoding of vertical heading. Using novel fMRI analyses, I also found preliminary evidence of a 3D grid code in the entorhinal cortex. Overall, these experiments demonstrate the capacity of the human brain to implement a flexible and efficient representation of 3D space. The work in this thesis will, I hope, serve as a stepping-stone in our understanding of how we navigate in the real – 3D – world.
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Jovalekic, A. T. "Anisotropic usage and encoding of three-dimensional space." Thesis, University College London (University of London), 2012. http://discovery.ucl.ac.uk/1348573/.

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Decades of work in the field of spatial cognition have revealed fundamental aspects of how navigation is structured in two-dimensional, horizontal spaces and have exposed remarkable insights into how the brain processes spatial information. However, animals and humans daily encounter navigation tasks in complex environments that include many vertical features. Until now, it has been only poorly understood how navigation behaviours are organised in three-dimensional spaces and how the additional vertical dimension is encoded. The aim of the present thesis was threefold: first, to review behavioural and neurophysiological literature involving three-dimensional navigation; second, to characterise spatial behaviours in environments with a vertical dimension; and third, to study neural substrates of three-dimensional navigation. Rats’ navigation abilities were tested in two types of environments: the pegboard, which is a vertical climbing wall, and the lattice maze, which is a three-dimensional climbing cube. Foraging and detour experiments were conducted in both environments and revealed that the use of three-dimensional space is horizontally biased. Such biases were manifested in three ways. Rats exhibited more horizontal than vertical movements, structured their foraging behaviours in a horizontal fashion and showed preference for initially-horizontal paths when offered two routes requiring equivalent effort to reach a goal. In order to understand how the vertical dimension is represented at a neural level, hippocampal place cells and entorhinal grid cells were recorded on the pegboard during foraging. In horizontal environments, place cells exhibit location-specific firing, whereas grid cells map space with multiple hexagonally arranged firing fields. The experiments with the pegboard revealed that both cell types represented the horizontal dimension better than the vertical dimension. Furthermore, grid cells formed vertically aligned stripes on the pegboard, suggesting that encoding of the vertical dimension was more strongly impaired in grid cells than by place cells. It is suggested that in rats, three-dimensional spaces are – both at a neural and a behavioural level – anisotropically represented.
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Verriotis, M. A. "Exploring the brain's representation of three-dimensional space." Thesis, University College London (University of London), 2012. http://discovery.ucl.ac.uk/1339146/.

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Previous research has shown that in two‐dimensional environments, ‘place cells’ and ‘grid cells’ in the hippocampal formation comprise two units of O’Keefe and Nadel’s (1978) ‘cognitive map’, coding for the rat’s present location and for metric distance information, respectively. Since the world is three‐dimensional, an important question is whether the cognitive map is also volumetric. To explore this issue, place and grid cells were recorded from rats as they shuttled up and down between two ends of a spiral staircase (the ‘helical track’), allowing the same horizontal locations to be sampled at different vertical levels. Using this novel paradigm, it was possible to investigate whether place and grid cell receptive fields are globular or planar. The first experiment demonstrated that place fields extended in the vertical, as well as horizontal, dimension, suggesting that they were globular. However, the vertical extent was larger than the horizontal extent, suggesting either a coarser representation of height, or contextual modulation of fields in the vertical dimension, in the absence of metric vertical distance. Both possibilities imply that the cognitive map is anisotropic (not uniform in all dimensions). The second set of experiments involved probe trials that showed that both distal and local cues influence place fields in the vertical dimension. The third experiment demonstrated that grid cells produced several subfields on the helical track that, similar to the place fields, were vertically elongated. However, they were more elongated than place fields, and showed no vertical periodicity, suggesting the lack of metric vertical information. Overall, these observations suggest that three‐dimensional space is anisotropically represented in the rat brain as a contextually modulated flat map, in which only the current navigation plane is metrically represented. Due to the complexity of a truly three‐dimensional representation, an anisotropic representation is likely in all surface‐navigating animals including humans.
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Nussbaum, Doron Carleton University Dissertation Computer Science. "Directional separability in two and three dimensional space." Ottawa, 1988.

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Sitter, David Norbert. "Space invariant modeling in three-dimensional optical image formation." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/13450.

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Books on the topic "Three dimensional space"

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ill, Clifton-Dey Richard, ed. Space, a three-dimensional journey. New York: Dial Books for Young Readers, 1991.

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Janich, Peter. Euclid’s Heritage: Is Space Three-Dimensional? Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8096-0.

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Janich, Peter. Euclid's heritage: Is space three-dimensional? Dordrecht: Kluwer Academic Publishers, 1992.

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Pat, Fisher Mary, ed. Shaping space: The dynamics of three-dimensional design. 2nd ed. South Melbourne, Victoria, Australia: Wadsworth / Thomson Learning, 1995.

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1943-, Fisher Mary Pat, ed. Shaping space: The dynamics of three-dimensional design. Fort Worth: Harcourt Brace Jovanovich College Publishers, 1987.

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Zelanski, Paul. Shaping space: The dynamics of three-dimensional design. New York: Holt, Rinehart and Winston, 1987.

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United States. National Aeronautics and Space Administration., ed. Static stability of a three-dimensional space truss. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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J, Grunwald Arthur, and Ames Research Center, eds. A new illusion of projected three-dimensional space. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1987.

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S, Armstrong E., and United States. National Aeronautics and Space Administration., eds. Three dimensional thermal analysis of rocket thrust chambers. [Washington, DC]: National Aeronautics and Space Administration, 1989.

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The Universe: A three-dimensional study. London, UK: Century Publishing Co. Ltd., 1985.

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Book chapters on the topic "Three dimensional space"

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Lee, Kwang Hyung. "Freedom from Space." In Three Dimensional Creativity, 27–44. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8804-5_3.

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Araújo, Vítor, and Maria José Pacifico. "Robustness on the Whole Ambient Space." In Three-Dimensional Flows, 99–121. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11414-4_4.

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Elstrodt, Jürgen, Fritz Grunewald, and Jens Mennicke. "Three-Dimensional Hyperbolic Space." In Springer Monographs in Mathematics, 1–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-03626-6_1.

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Noseworthy, J. Russell, Arthur M. Ryan, and Lester A. Gerhardt. "Three-Dimensional Vision." In Intelligent Robotic Systems for Space Exploration, 185–240. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3634-5_5.

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Roelandt, Jos R. T. C., and Joseph Kisslo. "Three-dimensional echocardiography: lessons in overcoming time and space." In Three-dimensional Echocardiography, 3–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11179-2_2.

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Roelandt, Jos R. T. C., and Joseph Kisslo. "Three-dimensional echocardiography: lessons in overcoming time and space." In Three-dimensional Echocardiography, 1–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-36799-1_1.

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Levakhina, Yulia. "Backprojected space in image reconstruction." In Three-Dimensional Digital Tomosynthesis, 99–136. Wiesbaden: Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-05697-1_5.

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Janich, Peter. "Knowledge about Space." In Euclid’s Heritage: Is Space Three-Dimensional?, 121–35. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8096-0_7.

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Strack, Otto D. L. "Vectors in Three-Dimensional Space." In Applications of Vector Analysis and Complex Variables in Engineering, 1–9. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-41168-8_1.

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Lepetic, Vladimir. "Three-dimensional Vector Space V." In Classical Vector Algebra, 9–37. Boca Raton: Chapman and Hall/CRC, 2022. http://dx.doi.org/10.1201/9781003343486-3.

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Conference papers on the topic "Three dimensional space"

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Healy, John J. "The Space-Bandwidth Ratio." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/dh.2011.dtub4.

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Tian, Lei, Justin Lee, Se Baek Oh, and George Barbastathis. "Compressive phase space tomography." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/dh.2011.dtud3.

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Dahl, Daniel S., Martin Plöschner, Mickael Mounaix, Nicolas K. Fontaine, and Joel Carpenter. "High-dimensional Stokes-space spatial beam analyzer." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/dh.2022.w5a.50.

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We demonstrate a device for measuring the generalized Stokes parameters of a six spatial mode beam. The device is a single-shot wavefront sensor measuring spatial complex amplitude and coherence without an external phase reference.
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Shimobaba, Tomoyoshi, Takayuki Takahashi, Nobuyuki Masuda, and Tomoyoshi Ito. "Color holographic projection with space-division method." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/dh.2011.dtuc35.

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Zhang, Hao, Jiasheng Xiao, Lizhi Chen, and Runze Zhu. "Computer Holography Based on Phase Space Analysis." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/dh.2022.m6a.5.

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The property of space-bandwidth product in computer holography is investigated based on phase space analysis. Optimization of the hologram in joint space-frequency domain can exert comprehensive constraints on the diffraction fields for high-quality optical reconstructions.
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Shen, Yijie, Nikitas Papasimakis, and Nikolay I. Zheludev. "Propagating Optical Skyrmions with Space-Time Superoscillatory Resolution." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/dh.2022.w3a.6.

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We report an extended family of super-toroidal light pulses, the exact solutions of Maxwell’s equations, allowing propagation-robust skyrmionic topologies that can exhibit superoscillatory resolutions simultaneously in space and time.
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Chen, Ni, Congli Wang, and Wolfgang Heidrich. "Space-time optical imaging framework: Holographic particle tracking velocimetry." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2021. http://dx.doi.org/10.1364/dh.2021.dw4b.4.

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Tanimoto, Masayuki, and Hirokuni Kurokawa. "Ray-space processing for omnidirectional FTV." In Three-Dimensional Imaging, Visualization, and Display 2018, edited by Jung-Young Son, Bahram Javidi, and Osamu Matoba. SPIE, 2018. http://dx.doi.org/10.1117/12.2304605.

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Loomis, Nick, and George Barbastathis. "Space-bandwidth Transfer in Spherical Reference Holography Using Wigner Transforms." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2009. http://dx.doi.org/10.1364/dh.2009.dmb4.

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Esmer, G. Bora, Otilia Popescu, and Dimitrie C. Popescu. "Reconstruction of Diffraction Field From Its Samples Distributed Over Space." In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/dh.2015.dt1a.2.

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Reports on the topic "Three dimensional space"

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Previc, Fred H., Lisa F. Weinstein, and Bruno G. Breitmeyer. Visual Attention and Perception in Three-Dimensional Space. Fort Belvoir, VA: Defense Technical Information Center, January 1992. http://dx.doi.org/10.21236/ada247823.

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2

Sugama, H., and W. Horton. L-H confinement mode dynamics in three-dimensional state space. Office of Scientific and Technical Information (OSTI), January 1994. http://dx.doi.org/10.2172/10126086.

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3

Winters, William S. Modeling Dispersion of Chemical-Biological Agents in Three Dimensional Living Space. Office of Scientific and Technical Information (OSTI), February 2002. http://dx.doi.org/10.2172/793724.

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4

Yu, H. Y., and S. C. Sanday. Three-Dimensional Stresses in a Half Space Caused by Penny-Shaped Inclusions. Fort Belvoir, VA: Defense Technical Information Center, August 1988. http://dx.doi.org/10.21236/ada199535.

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5

Grote, David Peter. Three dimensional simulations of space charge dominated heavy ion beams with applications to inertial fusion energy. Office of Scientific and Technical Information (OSTI), November 1994. http://dx.doi.org/10.2172/110795.

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Roy, A. K., K. Li, and X. L. Gao. Micromechanical Analysis of Three-Dimensional Open-Cell Foams Using the Matrix Method for Space Frame Structures. Fort Belvoir, VA: Defense Technical Information Center, November 2004. http://dx.doi.org/10.21236/ada428834.

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Comberiate, Joseph M. Space-Based Three-Dimensional Imaging of Equatorial Plasma Bubbles: Advancing the Understanding of Ionospheric Density Depletions and Scintillation. Fort Belvoir, VA: Defense Technical Information Center, March 2012. http://dx.doi.org/10.21236/ada567064.

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8

Kalenych, Volodymyr. IMMERSIVE TECHNOLOGIES OF JOURNALISM IN THE UKRAINIAN AND GLOBAL MEDIA SPACE. Ivan Franko National University of Lviv, March 2024. http://dx.doi.org/10.30970/vjo.2024.54-55.12161.

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The article deals with the new technologies of immersive journalism in the Ukrainian and global mediaspace for the example of specific media. The 360° video stands out among the main formats of immersive journalism, in it the viewer himself explores the video space, becoming a witness of events. The formats of photogrammetry, virtual reality (VR), 3D panoramas and 3D maps are also immersive. New formats and technologies have revolutionized the media sphere and allowed to create more dynamic and interesting stories. Immersive technologies made possible to transport the audience directly to the center of the news event through the format of 360-degree video and three-dimensional virtual reality, providing the «effect of presence». The format of 3D models and photogrammetry allowed users to interact with stories on a visual level more actively. Immersive technologies have also had a profound impact on the functioning of immersive journalism and fundamentally changed the way audiences interact with news stories. «Radio Svoboda», «Texty», «Ukraїner», «The New York Times», «The Guardian», «Der Tagesspiegel», «WDR» and other media experiment with the immersive formats. They give the opportunity for viewers to be in the center of a news event directly or to get an interactive, data-rich experience. This immersive approach allowed for increased empathy and understanding of each information consumer because they can feel and see the environments which are associated with a particular story. Key words: new media, media format, media technology, immersive technologies, immersive journalism.
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9

Warrick, Arthur W., Gideon Oron, Mary M. Poulton, Rony Wallach, and Alex Furman. Multi-Dimensional Infiltration and Distribution of Water of Different Qualities and Solutes Related Through Artificial Neural Networks. United States Department of Agriculture, January 2009. http://dx.doi.org/10.32747/2009.7695865.bard.

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The project exploits the use of Artificial Neural Networks (ANN) to describe infiltration, water, and solute distribution in the soil during irrigation. It provides a method of simulating water and solute movement in the subsurface which, in principle, is different and has some advantages over the more common approach of numerical modeling of flow and transport equations. The five objectives were (i) Numerically develop a database for the prediction of water and solute distribution for irrigation; (ii) Develop predictive models using ANN; (iii) Develop an experimental (laboratory) database of water distribution with time; within a transparent flow cell by high resolution CCD video camera; (iv) Conduct field studies to provide basic data for developing and testing the ANN; and (v) Investigate the inclusion of water quality [salinity and organic matter (OM)] in an ANN model used for predicting infiltration and subsurface water distribution. A major accomplishment was the successful use of Moment Analysis (MA) to characterize “plumes of water” applied by various types of irrigation (including drip and gravity sources). The general idea is to describe the subsurface water patterns statistically in terms of only a few (often 3) parameters which can then be predicted by the ANN. It was shown that ellipses (in two dimensions) or ellipsoids (in three dimensions) can be depicted about the center of the plume. Any fraction of water added can be related to a ‘‘probability’’ curve relating the size of the ellipse (or ellipsoid) that contains that amount of water. The initial test of an ANN to predict the moments (and hence the water plume) was with numerically generated data for infiltration from surface and subsurface drip line and point sources in three contrasting soils. The underlying dataset consisted of 1,684,500 vectors (5 soils×5 discharge rates×3 initial conditions×1,123 nodes×20 print times) where each vector had eleven elements consisting of initial water content, hydraulic properties of the soil, flow rate, time and space coordinates. The output is an estimate of subsurface water distribution for essentially any soil property, initial condition or flow rate from a drip source. Following the formal development of the ANN, we have prepared a “user-friendly” version in a spreadsheet environment (in “Excel”). The input data are selected from appropriate values and the output is instantaneous resulting in a picture of the resulting water plume. The MA has also proven valuable, on its own merit, in the description of the flow in soil under laboratory conditions for both wettable and repellant soils. This includes non-Darcian flow examples and redistribution and well as infiltration. Field experiments were conducted in different agricultural fields and various water qualities in Israel. The obtained results will be the basis for the further ANN models development. Regions of high repellence were identified primarily under the canopy of various orchard crops, including citrus and persimmons. Also, increasing OM in the applied water lead to greater repellency. Major scientific implications are that the ANN offers an alternative to conventional flow and transport modeling and that MA is a powerful technique for describing the subsurface water distributions for normal (wettable) and repellant soil. Implications of the field measurements point to the special role of OM in affecting wettability, both from the irrigation water and from soil accumulation below canopies. Implications for agriculture are that a modified approach for drip system design should be adopted for open area crops and orchards, and taking into account the OM components both in the soil and in the applied waters.
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10

Gantzer, Clark J., Shmuel Assouline, and Stephen H. Anderson. Synchrotron CMT-measured soil physical properties influenced by soil compaction. United States Department of Agriculture, February 2006. http://dx.doi.org/10.32747/2006.7587242.bard.

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Methods to quantify soil conditions of pore connectivity, tortuosity, and pore size as altered by compaction were done. Air-dry soil cores were scanned at the GeoSoilEnviroCARS sector at the Advanced Photon Source for x-ray computed microtomography of the Argonne facility. Data was collected on the APS bending magnet Sector 13. Soil sample cores 5- by 5-mm were studied. Skeletonization algorithms in the 3DMA-Rock software of Lindquist et al. were used to extract pore structure. We have numerically investigated the spatial distribution for 6 geometrical characteristics of the pore structure of repacked Hamra soil from three-dimensional synchrotron computed microtomography (CMT) computed tomographic images. We analyzed images representing cores volumes 58.3 mm³ having average porosities of 0.44, 0.35, and 0.33. Cores were packed with < 2mm and < 0.5mm sieved soil. The core samples were imaged at 9.61-mm resolution. Spatial distributions for pore path length and coordination number, pore throat size and nodal pore volume obtained. The spatial distributions were computed using a three-dimensional medial axis analysis of the void space in the image. We used a newly developed aggressive throat computation to find throat and pore partitioning for needed for higher porosity media such as soil. Results show that the coordination number distribution measured from the medial axis were reasonably fit by an exponential relation P(C)=10⁻C/C0. Data for the characteristic area, were also reasonably well fit by the relation P(A)=10⁻ᴬ/ᴬ0. Results indicates that compression preferentially affects the largest pores, reducing them in size. When compaction reduced porosity from 44% to 33%, the average pore volume reduced by 30%, and the average pore-throat area reduced by 26%. Compaction increased the shortest paths interface tortuosity by about 2%. Soil structure alterations induced by compaction using quantitative morphology show that the resolution is sufficient to discriminate soil cores. This study shows that analysis of CMT can provide information to assist in assessment of soil management to ameliorate soil compaction.
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