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Journal articles on the topic 'Ambient space'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Shi, Peiteng, Markus Billeter, and Elmar Eisemann. "Stereo-consistent screen-space ambient occlusion." Proceedings of the ACM on Computer Graphics and Interactive Techniques 5, no. 1 (2022): 1–12. http://dx.doi.org/10.1145/3522614.

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Screen-space ambient occlusion (SSAO) shows high efficiency and is widely used in real-time 3D applications. However, using SSAO algorithms in stereo rendering can lead to inconsistencies due to the differences in the screen-space information captured by the left and right eye. This will affect the perception of the scene and may be a source of viewer discomfort. In this paper, we show that the raw obscurance estimation part and subsequent filtering are both sources of inconsistencies. We developed a screen-space method involving both views in conjunction, leading to a stereo-aware raw obscura

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2

Wilcox, Dean. "Ambient Space in Twentieth-Century Theatre: The Space of Silence." Modern Drama 46, no. 4 (2003): 542–57. http://dx.doi.org/10.3138/md.46.4.542.

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3

Pochinka, O. V., and D. D. Shubin. "Topology of Ambient 3-Manifolds of Non-Singular Flows with Twisted Saddle Orbit." Nelineinaya Dinamika 19, no. 3 (2023): 371–81. http://dx.doi.org/10.20537/nd230905.

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In the present paper, nonsingular Morse – Smale flows on closed orientable 3-manifolds are considered under the assumption that among the periodic orbits of the flow there is only one saddle and that it is twisted. An exhaustive description of the topology of such manifolds is obtained. Namely, it is established that any manifold admitting such flows is either a lens space or a connected sum of a lens space with a projective space, or Seifert manifolds with a base homeomorphic to a sphere and three singular fibers. Since the latter are prime manifolds, the result obtained refutes the claim tha

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Boukharrou, Radja Radja, Jean-Michel Ilié, and Djamel Eddine Saidouni. "Time and Space Reasoning for Ambient Systems." International Journal of Ambient Computing and Intelligence 8, no. 3 (2017): 38–57. http://dx.doi.org/10.4018/ijaci.2017070103.

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This paper presents an algebraic language, called Time-AgLOTOS, to describe time-dependent behavior of intelligent agent for the design of Ambient Intelligence systems. This specification model provides a theoretical foundation for performing planning under timing constraints. Based on a true-concurrency semantics, a contextual model, called Spatio-Temporal Planning System (STPS), is developed to capture all possible evolutions of an agent plan including context changes. The STPS provides formal description of possible actions to perform supporting timing constraints, action duration and spati

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Yavari, Arash, Arkadas Ozakin, and Souhayl Sadik. "Nonlinear Elasticity in a Deforming Ambient Space." Journal of Nonlinear Science 26, no. 6 (2016): 1651–92. http://dx.doi.org/10.1007/s00332-016-9315-8.

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6

Maldeghem, Hendrik Van. "Hyperplanes of Segre Geometries." Ars Combinatoria 160, no. 1 (2024): 59–71. http://dx.doi.org/10.61091/ars-160-07.

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We classify the geometric hyperplanes of the Segre geometries, that is, direct products of two projective spaces. In order to do so, we use the concept of a generalised duality. We apply the classification to Segre varieties and determine precisely which geometric hyperplanes are induced by hyperplanes of the ambient projective space. As a consequence we find that all geometric hyperplanes are induced by hyperplanes of the ambient projective space if, and only if, the underlying field has order 2 or 3 .

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Petersen, Kjell Yngve. "Ambient Adaptive Lighting." Architectural Research in Finland 3, no. 1 (2022): 184–99. http://dx.doi.org/10.37457/arf.121681.

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The concept of adaptive lighting suggests architectural lighting designs that adjust and react to the living practices of inhabitants and variations in the environmental conditions. Current developments in lighting technologies, such as LED light sources and IoT infrastructures, open for new opportunities with adaptive lighting, where the control of the lighting possibly operates as an IoT service rather than build into building management systems. The dynamic flux in lighting changes the experiential presence and brings focus on change and variation rather than states, levels and struct

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Çalıskan, Abdussamet, and Bayram Şahin. "Slant helices on Riemannian manifolds." Filomat 38, no. 22 (2024): 7743–54. https://doi.org/10.2298/fil2422743c.

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The notion of a slant helix in Euclidean space was defined by Izumiya and Takeuchi [5], and many authors have studied such curves in Euclidean spaces. The aim of this paper is to introduce the slant helix notion on Riemannian manifolds. The necessary conditions for a curve on a Riemannian manifold to be a slant helix are obtained in terms of differential equations. In addition, certain conditions were found for the slant helix along an immersion to be a slant helix in the ambient space. Moreover, a criterion is given for the slant helix along an immersion to be a circle in the ambient space (o

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9

Takook, Mohammad Vahid, Jean-Pierre Gazeau, and Eric Huguet. "Asymptotic States and S-Matrix Operator in de Sitter Ambient Space Formalism." Universe 9, no. 9 (2023): 379. http://dx.doi.org/10.3390/universe9090379.

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Within the de Sitter ambient space framework, the two different bases of the one-particle Hilbert space of the de Sitter group algebra are presented for the scalar case. Using field operator algebra and its Fock space construction in this formalism, we discuss the existence of asymptotic states in de Sitter QFT under an extension of the adiabatic hypothesis and prove the Fock space completeness theorem for the massive scalar field. We define the quantum state in the limit of future and past infinity on the de Sitter hyperboloid in an observer-independent way. These results allow us to examine

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10

Vermeer, Jop, Leonardo Scandolo, and Elmar Eisemann. "Stochastic-Depth Ambient Occlusion." Proceedings of the ACM on Computer Graphics and Interactive Techniques 4, no. 1 (2021): 1–15. http://dx.doi.org/10.1145/3451268.

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Ambient occlusion (AO) is a popular rendering technique that enhances depth perception and realism by darkening locations that are less exposed to ambient light (e.g., corners and creases). In real-time applications, screen-space variants, relying on the depth buffer, are used due to their high performance and good visual quality. However, these only take visible surfaces into account, resulting in inconsistencies, especially during motion. Stochastic-Depth Ambient Occlusion is a novel AO algorithm that accounts for occluded geometry by relying on a stochastic depth map, capturing multiple sce

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11

Kwon, Hyunwoo. "Ambient Music Form - Focusing on Aphex Twin’s “Rhubarb”." Korean Association for the Study of Popular Music 33 (May 30, 2024): 11–33. http://dx.doi.org/10.36775/kjpm.2024.33.11.

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Ambient music does not have a traditional music forms but emphasizes a sense of space through continuous repetition of pad and drone sounds. This study sought to reveal the characteristics of ambient music format. By analyzing Aphex Twin’s song “Rhubarb,” this study investigated the dynamic changes in ambient music that occur through repetition and transformation. The analysis confirmed that the dynamic change achieved through the overlapping of textures on repeated musical phrases forms the form of the song, thereby expanding and contracting the sense of space. The characteristics of the ambi

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12

Mingotti, Nicola, and Andrew W. Woods. "On the transport of heavy particles through a downward displacement-ventilated space." Journal of Fluid Mechanics 774 (June 8, 2015): 192–223. http://dx.doi.org/10.1017/jfm.2015.244.

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We investigate the transport of relatively heavy, small particles through a downward displacement-ventilated space. A flux of particles is supplied to the space from a localised source at a high level and forms a turbulent particle-laden plume which descends through the space. A constant flow of ambient fluid which does not contain particles is supplied to the space at a high level, while an equal amount of fluid is vented from the space at a low level. As a result of the entrainment of ambient fluid into the particle plume, a return flow is produced in the ambient fluid surrounding the plume

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Kannamma, D., and Dr A. Meenatchi Sundaram. "SIGNIFICANCE OF MICROCLIMATIC STUDY IN URBAN CANYONS TOWARDS AMBIENT URBAN SPACE DESIGN." JOURNAL OF TODAY'S IDEAS - TOMORROW'S TECHNOLOGIES 3, no. 1 (2015): 95–109. http://dx.doi.org/10.15415/jotitt.2015.31007.

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14

DEHGHANI, M. "COVARIANT TWO-POINT FUNCTION FOR MASSLESS SPIN-2 FIELD IN DE SITTER SPACE." Modern Physics Letters A 24, no. 40 (2009): 3283–94. http://dx.doi.org/10.1142/s0217732309031326.

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The linearized gravitational field equation in de Sitter (dS) four-dimensional space is gauge invariant under some special gauge transformations. It is also gauge invariant in ambient space notations in which the field equation is written in terms of the Casimir operators of dS group. In this paper the field equation is solved in terms of a gauge-fixed value (i.e. in the minimal case). It is shown that the solution can be written as the multiplication of a generalized symmetric rank-2 polarization tensor and a massless minimally coupled scalar field in ambient space notations. The two-point fu

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15

Diaz Cardona, Rebio. "Ambient text and the becoming space of writing." Environment and Planning D: Society and Space 34, no. 4 (2016): 637–54. http://dx.doi.org/10.1177/0263775816631991.

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16

Halegoua, Germaine. "Ambient Television: Visual Culture and Public Space (review)." Velvet Light Trap 52, no. 1 (2003): 71–73. http://dx.doi.org/10.1353/vlt.2003.0017.

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17

Rao, S. T., I. G. Zurbenko, R. Neagu, P. S. Porter, J. Y. Ku, and R. F. Henry. "Space and Time Scales in Ambient Ozone Data." Bulletin of the American Meteorological Society 78, no. 10 (1997): 2153–66. http://dx.doi.org/10.1175/1520-0477(1997)078<2153:satsia>2.0.co;2.

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18

Lin, Yusen, and Cheng-Chen Chen. "Strategies on Uniformity Lighting in Office Space under Energy-Saving Environment." Buildings 13, no. 7 (2023): 1797. http://dx.doi.org/10.3390/buildings13071797.

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In this study, our focus was on exploring the changing illuminance of work surfaces in different ambient uniformity spaces in the office, with a specific emphasis on sustainability and energy-saving considerations. To investigate this, we conducted a comprehensive study in a laboratory setting that replicated an office environment. The study involved the participation of 20 adults as subjects. The findings of our study revealed a strong correlation between the uniformity of ambient lighting illuminance within the indoor space and the illuminance levels observed specifically at the task plane.

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19

Sheykin, Anton, Dmitry Solovyev, and Sergey Paston. "Global Embeddings of BTZ and Schwarzschild-ADS Type Black Holes in a Flat Space." Symmetry 11, no. 7 (2019): 841. http://dx.doi.org/10.3390/sym11070841.

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We study the problem of construction of global isometric embedding for spherically symmetric black holes with negative cosmological constant in various dimensions. Firstly, we show that there is no such embedding for 4D RN-AdS black hole in 6D flat ambient space, completing the classification which we started earlier. Then we construct an explicit embedding of non-spinning BTZ black hole in 6D flat ambient space. Using this embedding as an anzats, we then construct a global explicit embedding of d-dimensional Schwarzschild-AdS black hole in a flat ( d + 3 ) -dimensional ambient space.

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20

Quast, Peter. "Centrioles in symmetric spaces." Nagoya Mathematical Journal 211 (September 2013): 51–77. http://dx.doi.org/10.1215/00277630-2141499.

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AbstractWe describe all centrioles in irreducible simply connected pointed symmetric spaces of compact type in terms of the root system of the ambient space, and we study some geometric properties of centrioles.

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Quast, Peter. "Centrioles in symmetric spaces." Nagoya Mathematical Journal 211 (September 2013): 51–77. http://dx.doi.org/10.1017/s0027763000010783.

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AbstractWe describe all centrioles in irreducible simply connected pointed symmetric spaces of compact type in terms of the root system of the ambient space, and we study some geometric properties of centrioles.

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22

Choudhri, Omar, and Michael T. Lawton. "Microsurgical resection of ambient cistern arteriovenous malformation." Neurosurgical Focus 40, videosuppl1 (2016): 1. http://dx.doi.org/10.3171/2016.1.focusvid.15414.

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The middle tentorial incisural space, located lateral to the midbrain and medial to the temporal lobe, contains the ambient cistern through which courses the third, fourth, and fifth cranial nerves, posterior cerebral artery (PCA), superior cerebellar artery, and the choroidal arteries. Arteriovenous malformations (AVMs) in this compartment are supplied by the thalamogeniculate and posterior temporal branches of the PCA, and drain into tributaries of the basal vein of Rosenthal. We present a case of an AVM in this middle tentorial incisural space that persisted after embolization and radiosurg

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23

Yavorskii, N. I. "Thermal multipoles for a jet in ambient spathermal multipoles for a jet in ambient space." Fluid Dynamics 31, no. 1 (1996): 33–38. http://dx.doi.org/10.1007/bf02230744.

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24

TELYATNIKOV, ILYA V. "SMOLYANOV–WEIZSÄCKER SURFACE MEASURES GENERATED BY DIFFUSIONS ON THE SET OF TRAJECTORIES IN RIEMANNIAN MANIFOLDS." Infinite Dimensional Analysis, Quantum Probability and Related Topics 11, no. 01 (2008): 21–31. http://dx.doi.org/10.1142/s0219025708002951.

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We consider surface measures on the set of trajectories in a smooth compact Riemannian submanifold of Euclidean space generated by diffusion processes in the ambient space. A construction of surface measures on the path space of a smooth compact Riemannian submanifold of Euclidean space was introduced by Smolyanov and Weizsäcker for the case of the standard Brownian motion. The result presented in this paper extends the result of Smolyanov and Weizsäcker to the case when we consider measures generated by diffusion processes in the ambient space with nonidentical correlation operators. For ever

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25

Sutanto, Riki, and Irwan Bagyo Santoso. "Modelling Green Space for CO2 Reduction in PT. Wilmar Nabati Gresik: SEM-PLS Approach." Jurnal Pengendalian Pencemaran Lingkungan (JPPL) 7, no. 1 (2025): 19–25. https://doi.org/10.35970/jppl.v7i1.2604.

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One of Sustainable Development Goals related to climate change is reducing greenhouse gas emissions, namely carbon dioxide (CO2) from human activities. Properly designed green open spaces impact human health and the environment. PT Wilmar Nabati Gresik is a large palm oil producer that produces emissions from the industrial sector. This study aimed to determine the value of ambient air CO2 absorption by green open spaces and its modeling at PT. Wilmar Nabati Gresik. Observations and measurements of ambient CO2 air samples were carried out every 1 hour for 24 hours in 6 days using a CO2 meter.

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26

Sokołowski, Leszek M., and Zdzisław A. Golda. "Every timelike geodesic in Anti-de Sitter spacetime is a circle of the same radius." International Journal of Modern Physics D 25, no. 01 (2016): 1650007. http://dx.doi.org/10.1142/s0218271816500073.

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In this paper, we refine and analytically prove an old proposition due to Calabi and Markus on the shape of timelike geodesics of anti-de Sitter space in the ambient flat space. We prove that each timelike geodesic forms in the ambient space a circle of the radius determined by [Formula: see text], lying on a Euclidean two-plane. Then, we outline an alternative proof for [Formula: see text]. We also make a comment on the shape of timelike geodesics in de Sitter space.

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27

Paston, Sergey, and Taisiia Zaitseva. "Nontrivial Isometric Embeddings for Flat Spaces." Universe 7, no. 12 (2021): 477. http://dx.doi.org/10.3390/universe7120477.

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Nontrivial isometric embeddings for flat metrics (i.e., those which are not just planes in the ambient space) can serve as useful tools in the description of gravity in the embedding gravity approach. Such embeddings can additionally be required to have the same symmetry as the metric. On the other hand, it is possible to require the embedding to be unfolded so that the surface in the ambient space would occupy the subspace of the maximum possible dimension. In the weak gravitational field limit, such a requirement together with a large enough dimension of the ambient space makes embedding gra

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28

Batista, Márcio, Henrique De Lima, and Wallace Gomes. "Solitons of mean curvature flow in certain warped products: nonexistence, rigidity, and Moser-Bernstein type results." Constructive Mathematical Analysis 8, no. 2 (2025): 117–34. https://doi.org/10.33205/cma.1597851.

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We apply suitable maximum principles to obtain nonexistence and rigidity results for complete mean curvature flow solitons in certain warped product spaces. We also provide applications to self-shrinkers in Euclidean space, as well as to mean curvature flow solitons in real projective, pseudo-hyperbolic, Schwarzschild, and Reissner-Nordstr\"{o}m spaces. Furthermore, we establish new Moser-Bernstein type results for entire graphs constructed over the fiber of the ambient space that are mean curvature flow solitons.

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29

Kloog, Itai. "Air pollution, ambient temperature, green space and preterm birth." Current Opinion in Pediatrics 31, no. 2 (2019): 237–43. http://dx.doi.org/10.1097/mop.0000000000000736.

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30

Mattausch, Oliver, Daniel Scherzer, and Michael Wimmer. "High-Quality Screen-Space Ambient Occlusion using Temporal Coherence." Computer Graphics Forum 29, no. 8 (2010): 2492–503. http://dx.doi.org/10.1111/j.1467-8659.2010.01784.x.

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31

Reid, Anthony, Bronwyn Murphy, Nicole Galloway-Warland, Adebayo Ojo, Gerrit Olivier, and Doreen Mikitiuk. "Imaging the supergene search space with Ambient Noise Tomography." Preview 2024, no. 229 (2024): 39–46. http://dx.doi.org/10.1080/14432471.2024.2395052.

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32

Baker, C. C., R. R. Chromik, K. J. Wahl, J. J. Hu, and A. A. Voevodin. "Preparation of chameleon coatings for space and ambient environments." Thin Solid Films 515, no. 17 (2007): 6737–43. http://dx.doi.org/10.1016/j.tsf.2007.02.005.

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33

Papadopoulou, Elizabeth, Sarah Gallacher, Nick K. Taylor, and M. Howard Williams. "A Personal Smart Space approach to realising Ambient Ecologies." Pervasive and Mobile Computing 8, no. 4 (2012): 485–99. http://dx.doi.org/10.1016/j.pmcj.2011.10.008.

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34

Magni, Annibale, Carlo Mantegazza, and Efstratios Tsatis. "Flow by mean curvature inside a moving ambient space." Journal of Evolution Equations 13, no. 3 (2013): 561–76. http://dx.doi.org/10.1007/s00028-013-0190-6.

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35

Jalilifard, F., Y. Ahmadi, and M. V. Takook. "Electron–photon interaction in de Sitter ambient space formalism." Modern Physics Letters A 33, no. 01 (2018): 1850006. http://dx.doi.org/10.1142/s0217732318500062.

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The electron–photon interaction (the spinor–vector field interaction) in the de Sitter ambient space formalism is investigated in the first (leading order) approximation. The interaction Lagrangian and the scattering matrix are presented. In this approximation, the scattering matrix can be written as a expansion of the interaction Lagrangian. The tree-diagram of electron–photon scattering amplitude is calculated. Finally, the Minkowski limit is considered.

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36

Roux, Philippe, Karim G. Sabra, W. A. Kuperman, and Andre Roux. "Ambient noise cross correlation in free space: Theoretical approach." Journal of the Acoustical Society of America 117, no. 1 (2005): 79–84. http://dx.doi.org/10.1121/1.1830673.

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37

Morozov, A. A., M. Yu Plotnikov, and A. K. Rebrov. "Collision of supersonic flows in vacuum and ambient space." Journal of Applied Mechanics and Technical Physics 40, no. 4 (1999): 588–93. http://dx.doi.org/10.1007/bf02468432.

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38

Fink, Sabine Gebhardt. "Ambient in Kunst, Musik und Theater." Zeitschrift für Ästhetik und Allgemeine Kunstwissenschaft Band 54. Heft 1 54, no. 1 (2009): 121–32. http://dx.doi.org/10.28937/1000106143.

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In performativen künstlerischen Projekten der Ambient Art werden Raum und Körper neu erzeugt. Diese These verdeutliche ich mit Beispielen aus den Bereichen Musik, Theater und Kunst, die das transdisziplinäre Phänomen Ambient als komplexe mediale Struktur erklären. Des weiteren gehe ich vom Modell des gelebten Raums aus, um auszuführen, wie der Ort eines künstlerischen Projekts die Art und Weise der Verkörperungen seiner Teilnehmer definiert. Umgekehrt wird deutlich, daß die immersive ästhetische Erfahrung von Ambient erst Präsenz und Raum konstituiert. During performative artistic projects in

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DEHGHANI, M. "A NEW PHYSICAL STATE FOR DE SITTER LINEAR GRAVITY." International Journal of Modern Physics A 26, no. 02 (2011): 301–15. http://dx.doi.org/10.1142/s0217751x11051251.

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Based on conformal invariance and using Dirac's six-cone formalism, a new conformally invariant physical field equation for de Sitter (dS) linear gravity has been obtained, which corresponds to one of the unitary irreducible representations of the dS group and is denoted by [Formula: see text] in the sense of discrete series. Using ambient space notations, it has been shown that the solution to this new field equation can be written as the multiplication of a generalized symmetric polarization tensor of rank 2 and a massless conformally coupled scalar field in dS space–time. The physical tenso

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Montaldo, S., and A. Pámpano. "Totally biharmonic hypersurfaces in space forms and 3-dimensional BCV spaces." International Journal of Mathematics 32, no. 04 (2021): 2150025. http://dx.doi.org/10.1142/s0129167x21500257.

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A hypersurface is said to be totally biharmonic if all its geodesics are biharmonic curves in the ambient space. We prove that a totally biharmonic hypersurface into a space form is an isoparametric biharmonic hypersurface, which allows us to give the full classification of totally biharmonic hypersurfaces in these spaces. Moreover, restricting ourselves to the 3-dimensional case, we show that totally biharmonic surfaces into Bianchi–Cartan–Vranceanu spaces are isoparametric surfaces and we give their full classification. In particular, we show that, leaving aside surfaces in the 3-dimensional

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Shelke, Sagar, and Baris Aksanli. "Static and Dynamic Activity Detection with Ambient Sensors in Smart Spaces." Sensors 19, no. 4 (2019): 804. http://dx.doi.org/10.3390/s19040804.

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Convergence of Machine Learning, Internet of Things, and computationally powerful single-board computers has boosted research and implementation of smart spaces. Smart spaces make predictions based on historical data to enhance user experience. In this paper, we present a low-cost, low-energy smart space implementation to detect static and dynamic human activities that require simple motions. We use low-resolution (4 × 16) and non-intrusive thermal sensors to collect data. We train six machine learning algorithms, namely logistic regression, naive Bayes, support vector machine, decision tree,

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Ali, Rifaqat, Fatemah Mofarreh, Nadia Alluhaibi, Akram Ali, and Iqbal Ahmad. "On Differential Equations Characterizing Legendrian Submanifolds of Sasakian Space Forms." Mathematics 8, no. 2 (2020): 150. http://dx.doi.org/10.3390/math8020150.

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In this paper, we give an estimate of the first eigenvalue of the Laplace operator on minimally immersed Legendrian submanifold N n in Sasakian space forms N ˜ 2 n + 1 ( ϵ ) . We prove that a minimal Legendrian submanifolds in a Sasakian space form is isometric to a standard sphere S n if the Ricci curvature satisfies an extrinsic condition which includes a gradient of a function, the constant holomorphic sectional curvature of the ambient space and a dimension of N n . We also obtain a Simons-type inequality for the same ambient space forms N ˜ 2 n + 1 ( ϵ ) .

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Aramaki, Shingo, Yuichi Hara, Yoshiyuki Daimaru, et al. "Sealant Inspection System with Ambient Light Reduction Using YCbCr Color Space and Cyan Light." Journal of the Institute of Industrial Applications Engineers 3, no. 2 (2015): 65–71. http://dx.doi.org/10.12792/jiiae.3.65.

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44

Herbst-Irmer, Regine, Xiaobai Wang, Laura Haberstock, et al. "A new polymorph of white phosphorus at ambient conditions." IUCrJ 10, no. 6 (2023): 766–71. http://dx.doi.org/10.1107/s2052252523009247.

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Phosphorus exists in several different allotropes: white, red, violet and black. For industrial and academic applications, white phosphorus is the most important. So far, three polymorphs of white phosphorus, all consisting of P4 tetrahedra, have been described. Among these, β-P4 crystallizes in the space group P 1 and γ-P4 in the space group C2/m. α-P4 forms soft plastic crystals with a proposed structure in the cubic space group I 43m with the lattice constant a = 18.51 (3) Å, consisting of 58 rotationally disordered tetrahedra and thus is similar to the structure of α-Mn. Here we present a

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Kim, Bong Keun, Kenichi Ohara, Kosei Kitagaki, and Kohtaro Ohba. "Design and Control of Librarian Robot System in Information Structured Environments." Journal of Robotics and Mechatronics 21, no. 4 (2009): 507–14. http://dx.doi.org/10.20965/jrm.2009.p0507.

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An information structured environment enables robots to complete specific tasks based on the information and knowledge provided by the environment. In our study, an information structured environment called u-RT space enabled a librarian robot to arrange books on bookshelves using ambient intelligence. The librarian robot consists of a manipulator, which can recognize and manipulate books, and a mobile platform, which can localize itself and navigate using ambient RFID tags embedded in a floor. The proposed u-RT space connects physical and virtual space using physical hyperlinks. The performan

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DEHGHANI, M. "EVALUATION OF THE GRAVITON TWO-POINT FUNCTION IN DE SITTER SPACE." International Journal of Modern Physics A 25, no. 18n19 (2010): 3749–64. http://dx.doi.org/10.1142/s0217751x1005010x.

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After a brief review of the linearized gravity in de Sitter (dS) four-dimensional space and ambient flat five-dimensional notations, the linearized field equation is written in terms of the Casimir operators of dS group. It is shown that the field equation is gauge invariant under some special gauge transformations. Because of this gauge freedom, a gauge-fixing parameter c is inserted in the field equation. It is shown that the solution to the field equation can be written as the multiplication of a generalized symmetric rank-2 polarization tensor and a massless minimally coupled scalar field

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Dinis, Frederico. "A música eletrónica ambiental: da profundidade sonora aos imaginários da mente." Todas as Artes Revista Luso-Brasileira de Artes e Cultura 5, no. 3 (2022): 55–82. http://dx.doi.org/10.21747/21843805/tav5n3a3.

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This article departs from the definition for ambient electronic music, as an inductive element for the creation of a space to think, and presents a set of authors and sound works orientated towards a concern with space. These authors are contextualised according to the foundations of contemporary electronic music, from the mid-20th century and which are based on works that revolutionised the way in which electronic music came to be seen, up to the new expansion of electronic ambient music, with the appearance of new sonorities and new paths for this musical genre as from the 2000s, consolidati

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Mirabi, Sepideh. "Massive fermion particle production in de Sitter universe: Ambient space approach." Modern Physics Letters A 29, no. 10 (2014): 1450051. http://dx.doi.org/10.1142/s0217732314500515.

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In this paper, we study the massive spin-½ particle creation in de Sitter (dS) space where the related fields are written in (4+1)-dimensional bulk or the so-called ambient space approach. This approach mimics the flat space quantum field theory (QFT) and the field operators are defined globally on dS space. The main purpose of this study is defining the |in〉 and |out〉 modes for the proposed quantum field which has been written in terms of the dS plane wave in the 4+1 dimensions. We compute, via the Bogoliubov coefficients, the rate of particle creation in dS universe.

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Vasiljevic-Tomic, Dragana, and Igor Maric. "Colour in the city: Principles of nature-climate characteristics." Facta universitatis - series: Architecture and Civil Engineering 9, no. 2 (2011): 315–23. http://dx.doi.org/10.2298/fuace1102315v.

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The phenomenon of colour is examined through the evolution of colour and development of culture of colour, principles of nature-climate characteristics which significantly affects the colouristic priorities of people and the colour of the city itself. The terms functional colour and climate of colour are also considered, as some of the most important characteristics of architectural and urban design practice. The role of the urban public space in functioning of the city is defined through the essential characteristics of urban public space, which are cultural identity, nature, climate characte

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Nakayama, Katsutoyo. "A study of neo-ambient lighting in an office space." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 73, Appendix (1989): 110. http://dx.doi.org/10.2150/jieij1980.73.appendix_110.

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