Log in

Relevant bibliographies by topics / Ambient space / Journal articles

Journal articles on the topic 'Ambient space'

To see the other types of publications on this topic, follow the link: Ambient space.

Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ambient space.'

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

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

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

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 (May 4, 2022): 1–12. http://dx.doi.org/10.1145/3522614.

Full text

Abstract:

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 obscurance estimation method and a stereo-aware bilateral filter. The results show that our method reduces stereo inconsistencies to a level comparable to geometry-based AO solutions, while maintaining the performance benefits of a screen-space approach.

APA, Harvard, Vancouver, ISO, and other styles

2

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

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

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 (July 2017): 38–57. http://dx.doi.org/10.4018/ijaci.2017070103.

Full text

Abstract:

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 spatial information. This structure offers new possibilities and strategies for taking agent real-time decisions in context-awareness manner.

APA, Harvard, Vancouver, ISO, and other styles

4

Yavari, Arash, Arkadas Ozakin, and Souhayl Sadik. "Nonlinear Elasticity in a Deforming Ambient Space." Journal of Nonlinear Science 26, no. 6 (July 1, 2016): 1651–92. http://dx.doi.org/10.1007/s00332-016-9315-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

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 (June 2, 2015): 95–109. http://dx.doi.org/10.15415/jotitt.2015.31007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Petersen, Kjell Yngve. "Ambient Adaptive Lighting." Architectural Research in Finland 3, no. 1 (September 9, 2022): 184–99. http://dx.doi.org/10.37457/arf.121681.

Full text

Abstract:

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 structures. The suggestion is to enable adaptive intertwinement through an expanded field of dynamic flux in the artificial lighting, and couple between the daylighting and the artificial lighting through an integration of ambient contexts. The project develops experiential prototypes, with which the dynamic design parameters of adaptive lighting can be investigated, analysed and scoped into architectural programming processes. The staging’s are full-scale architectural scenography’s, which situate investigations into how the experience parameters of fluctuating artificial lighting, integrated with daylight flux in an architectural space, are experienced to influence the experience of architectural space, social situations and everyday activities.

APA, Harvard, Vancouver, ISO, and other styles

7

Vermeer, Jop, Leonardo Scandolo, and Elmar Eisemann. "Stochastic-Depth Ambient Occlusion." Proceedings of the ACM on Computer Graphics and Interactive Techniques 4, no. 1 (April 26, 2021): 1–15. http://dx.doi.org/10.1145/3451268.

Full text

Abstract:

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 scene layers per pixel at random. Hereby, we efficiently gather missing information in order to improve upon the accuracy and spatial stability of conventional screen-space approximations, while maintaining real-time performance. Our approach integrates well into existing rendering pipelines and improves the robustness of many different AO techniques, including multi-view solutions.

APA, Harvard, Vancouver, ISO, and other styles

8

Diaz Cardona, Rebio. "Ambient text and the becoming space of writing." Environment and Planning D: Society and Space 34, no. 4 (July 26, 2016): 637–54. http://dx.doi.org/10.1177/0263775816631991.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

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 (October 1997): 2153–66. http://dx.doi.org/10.1175/1520-0477(1997)078<2153:satsia>2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

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.

Full text

Abstract:

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 in the lower part of the space. At steady state, particles are suspended by this return flow. An interface is formed which separates the ambient fluid in the lower part of the space, which contains particles, from the particle-free ambient fluid in the upper part of the space. New laboratory experiments show that the concentration of particles in the ambient fluid below the interface is larger than the average concentration of particles in the plume fluid at the level of the interface. Hence, as the plume fluid crosses the interface and descends through the particle-laden fluid underneath, it becomes relatively buoyant and forms a momentum-driven fountain. If the fountain fluid impinges on the floor, it then spreads radially over the surface until lifting off. We develop a quantitative model which can predict the height of the interface, the concentration of particles in the lower layer, and the partitioning of the particle flux between the fraction which sediments over the floor and that which is ventilated out of the space. We generalise the model to show that when particles and negatively buoyant fluid are supplied at the top of the space, a three-layer stratification develops in the space at steady state: the upper layer contains relatively low-density ambient fluid in which no particles are suspended; the central layer contains a mixture of ambient and plume fluid in which no particles are suspended; and the lower layer contains a suspension of particles in the same mixture of ambient and plume fluid. We quantify the heights of the two interfaces which separate the three layers in the space and the concentration of particles in suspension in the ambient fluid in the lower layer. We then discuss the relevance of the results for the control of airborne infections in buildings. Our experiments show that the three-layer stratification is subject to intermittent large-scale instabilities when the concentration of particles in the plume at the source is sufficiently small, or the rate of ventilation of the space is sufficiently large: we describe the transient concentration of particles in the space during one of these instabilities.

APA, Harvard, Vancouver, ISO, and other styles

12

Aramaki, Shingo, Yuichi Hara, Yoshiyuki Daimaru, Shenglin Mu, Shota Nakashima, Kanya Tanaka, and Atsushi Sanada. "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 (January 25, 2015): 65–71. http://dx.doi.org/10.12792/jiiae.3.65.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

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

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

DEHGHANI, M. "COVARIANT TWO-POINT FUNCTION FOR MASSLESS SPIN-2 FIELD IN DE SITTER SPACE." Modern Physics Letters A 24, no. 40 (December 28, 2009): 3283–94. http://dx.doi.org/10.1142/s0217732309031326.

Full text

Abstract:

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 function is calculated in ambient space notations, which is dS-invariant and free of any divergences. This two-point function has been expressed in terms of dS intrinsic coordinates, from its ambient space counterpart, which is clearly dS-invariant and free of any divergences again.

APA, Harvard, Vancouver, ISO, and other styles

15

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

Full text

Abstract:

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 radiosurgery, and was microsurgically resected through a subtemporal approach. This case demonstrates the anatomy of the middle incisural space and technical aspects in microsurgical resection of these rare AVMs.The video can be found here: https://youtu.be/V-dIWh8ys3E.

APA, Harvard, Vancouver, ISO, and other styles

16

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

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Mattausch, Oliver, Daniel Scherzer, and Michael Wimmer. "High-Quality Screen-Space Ambient Occlusion using Temporal Coherence." Computer Graphics Forum 29, no. 8 (August 25, 2010): 2492–503. http://dx.doi.org/10.1111/j.1467-8659.2010.01784.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

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 (June 2007): 6737–43. http://dx.doi.org/10.1016/j.tsf.2007.02.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

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 (August 2012): 485–99. http://dx.doi.org/10.1016/j.pmcj.2011.10.008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Magni, Annibale, Carlo Mantegazza, and Efstratios Tsatis. "Flow by mean curvature inside a moving ambient space." Journal of Evolution Equations 13, no. 3 (April 7, 2013): 561–76. http://dx.doi.org/10.1007/s00028-013-0190-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Jalilifard, F., Y. Ahmadi, and M. V. Takook. "Electron–photon interaction in de Sitter ambient space formalism." Modern Physics Letters A 33, no. 01 (January 9, 2018): 1850006. http://dx.doi.org/10.1142/s0217732318500062.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

22

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 (January 2005): 79–84. http://dx.doi.org/10.1121/1.1830673.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

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 (July 1999): 588–93. http://dx.doi.org/10.1007/bf02468432.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

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 (June 29, 2019): 841. http://dx.doi.org/10.3390/sym11070841.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

25

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

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

26

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

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

27

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.

Full text

Abstract:

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 Ambient Art, both space and structures of embodiment are constituted. I illustrate this thesis with examples of performative works in music, theatre and art, in order to analyze the transdisciplinary phenomenon of Ambient Art as a complex structure. My point of departure is a model of lived space in which the bodily enactment in the performative artwork produces place and, vice versa, the place of the artwork determines the active body as an immersive aesthetic experience.

APA, Harvard, Vancouver, ISO, and other styles

28

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 (March 2008): 21–31. http://dx.doi.org/10.1142/s0219025708002951.

Full text

Abstract:

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 every partition of the time interval, we consider the marginal distribution of the diffusion process in the ambient space under the condition that it visits the manifold at all times of the partition, when the mesh of the partition tends to zero. We prove the existence of some limit surface measures and the equivalence of the above measures to the distribution of some diffusion process on the manifold.

APA, Harvard, Vancouver, ISO, and other styles

29

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

Full text

Abstract:

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 sphere, the only nontrivial example of a totally biharmonic surface appears in the product space [Formula: see text].

APA, Harvard, Vancouver, ISO, and other styles

30

Shelke, Sagar, and Baris Aksanli. "Static and Dynamic Activity Detection with Ambient Sensors in Smart Spaces." Sensors 19, no. 4 (February 16, 2019): 804. http://dx.doi.org/10.3390/s19040804.

Full text

Abstract:

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, random forest and artificial neural network (vanilla feed-forward) on the dataset collected in our lab. Our experiments reveal a very high static activity detection rate with all algorithms, where the feed-forward neural network method gives the best accuracy of 99.96%. We also show how data collection methods and sensor placement plays an important role in the resulting accuracy of different machine learning algorithms. To detect dynamic activities in real time, we use cross-correlation and connected components of thermal images. Our smart space implementation, with its real-time properties, can be used in various domains and applications, such as conference room automation, elderly health-care, etc.

APA, Harvard, Vancouver, ISO, and other styles

31

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 (January 2016): 1650007. http://dx.doi.org/10.1142/s0218271816500073.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

32

Paston, Sergey, and Taisiia Zaitseva. "Nontrivial Isometric Embeddings for Flat Spaces." Universe 7, no. 12 (December 4, 2021): 477. http://dx.doi.org/10.3390/universe7120477.

Full text

Abstract:

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 gravity equivalent to general relativity, while at lower dimensions it guarantees the linearizability of the equations of motion. We discuss symmetric embeddings for the metrics of flat Euclidean three-dimensional space and Minkowski space. We propose the method of sequential surface deformations for the construction of unfolded embeddings. We use it to construct such embeddings of flat Euclidean three-dimensional space and Minkowski space, which can be used to analyze the equations of motion of embedding gravity.

APA, Harvard, Vancouver, ISO, and other styles

33

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Crang, Mike, and Stephen Graham. "SENTIENT CITIES Ambient intelligence and the politics of urban space." Information, Communication & Society 10, no. 6 (December 2007): 789–817. http://dx.doi.org/10.1080/13691180701750991.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Conley, Charles T. R., Rebecca Etnyre, Brady Gardener, Lucy H. Odom, and Bogdan Suceavă. "NEW CURVATURE INEQUALITIES FOR HYPERSURFACES IN THE EUCLIDEAN AMBIENT SPACE." Taiwanese Journal of Mathematics 17, no. 3 (May 2013): 885–95. http://dx.doi.org/10.11650/tjm.17.2013.2504.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Mendonça, Sérgio, and Heudson Mirandola. "Hypersurfaces whose tangent geodesics do not cover the ambient space." Proceedings of the American Mathematical Society 136, no. 03 (November 30, 2007): 1065–71. http://dx.doi.org/10.1090/s0002-9939-07-09282-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Hoang, Thai-Duong, and Kok-Lim Low. "Efficient screen-space approach to high-quality multiscale ambient occlusion." Visual Computer 28, no. 3 (September 27, 2011): 289–304. http://dx.doi.org/10.1007/s00371-011-0639-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Cranmer, Steven R., Sarah E. Gibson, and Pete Riley. "Origins of the Ambient Solar Wind: Implications for Space Weather." Space Science Reviews 212, no. 3-4 (October 2, 2017): 1345–84. http://dx.doi.org/10.1007/s11214-017-0416-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

SASAJIMA, Munehiko, Keisuke OKAMOTO, Naiwala P. Chandrasiri, Kazunari NAWA, and Riichiro MIZOGUCHI. "2207 A Design Method of Ambient Information Space in Automobile." Proceedings of Design & Systems Conference 2010.20 (2010): _2207–1_—_2207–6_. http://dx.doi.org/10.1299/jsmedsd.2010.20._2207-1_.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Zhang, Dongjiu, Chuhua Xian, Guoliang Luo, Yunhui Xiong, and Chu Han. "DeepAO: Efficient Screen Space Ambient Occlusion Generation via Deep Network." IEEE Access 8 (2020): 64434–41. http://dx.doi.org/10.1109/access.2020.2984771.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Ahmadi, Y., F. Jalilifard, and M. V. Takook. "Scalar–spinor fields interaction in de Sitter ambient space formalism." Modern Physics Letters A 34, no. 25 (August 20, 2019): 1950205. http://dx.doi.org/10.1142/s0217732319502055.

Full text

Abstract:

In de Sitter ambient space formalism, the massless minimally coupled scalar field can be constructed from a massless conformally coupled scalar field and a constant five-vector [Formula: see text]. Also, a constant five-vector [Formula: see text] appears in the interaction Lagrangian of massless minimally coupled scalar and spinor fields in this formalism. These constant five-vector fields can be fixed in the interaction case in the null curvature limit. Here, we will calculate the [Formula: see text] matrix elements of scalar–spinor field interaction in the tree level approximation. Then the constant five-vectors [Formula: see text] and [Formula: see text], will be fixed by comparing the [Formula: see text] matrix elements in the null curvature limits with the Minkowskian counterparts.

APA, Harvard, Vancouver, ISO, and other styles

42

Gao, Shan, Lixin Wang, Chi Feng, Yihan Xiao, and Ketui Daniel. "Multi-spectral pyrometer for narrow space with high ambient temperature." Optical Review 22, no. 4 (May 21, 2015): 605–13. http://dx.doi.org/10.1007/s10043-015-0096-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

DEHGHANI, M. "A NEW PHYSICAL STATE FOR DE SITTER LINEAR GRAVITY." International Journal of Modern Physics A 26, no. 02 (January 20, 2011): 301–15. http://dx.doi.org/10.1142/s0217751x11051251.

Full text

Abstract:

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 tensor two-point function has been calculated in terms of the conformally coupled scalar two-point function in the ambient space formalism. It has been expressed in terms of dS intrinsic coordinates from its ambient space counterpart, which is dS-invariant and free of any divergences.

APA, Harvard, Vancouver, ISO, and other styles

44

DEHGHANI, M. "EVALUATION OF THE GRAVITON TWO-POINT FUNCTION IN DE SITTER SPACE." International Journal of Modern Physics A 25, no. 18n19 (July 30, 2010): 3749–64. http://dx.doi.org/10.1142/s0217751x1005010x.

Full text

Abstract:

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 in ambient space notations. The graviton two-point function has been thoroughly calculated, which is dS-invariant and free of any divergences. This two-point function has been expressed in terms of the intrinsic dS coordinates, from its ambient space counterpart, which is clearly dS-invariant and free of any divergences again.

APA, Harvard, Vancouver, ISO, and other styles

45

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 (January 21, 2020): 150. http://dx.doi.org/10.3390/math8020150.

Full text

Abstract:

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 ) .

APA, Harvard, Vancouver, ISO, and other styles

46

Mirabi, Sepideh. "Massive fermion particle production in de Sitter universe: Ambient space approach." Modern Physics Letters A 29, no. 10 (March 28, 2014): 1450051. http://dx.doi.org/10.1142/s0217732314500515.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

47

Chauhan, V., and Á. Ragnarsson. "Thermodynamic and thermoeconomic analysis of combined geothermal space heating and thermal storage using phase change materials." Geothermal Energy Science 3, no. 1 (December 10, 2015): 69–80. http://dx.doi.org/10.5194/gtes-3-69-2015.

Full text

Abstract:

<p><strong>Abstract.</strong> The present work discusses the utilization of phase change materials for energy storage in geothermal space heating systems. Thermodynamics and thermoeconomics of the combined heating and thermal storing system were studied to show the scope of energy storage and cost savings. A computational model of the combined space heating and thermal storage system was developed and used to perform thermodynamic studies of the heat storage process and heating system efficiency at different times and ambient temperatures. The basis for these studies is daily variations in heating demand that is higher during the night than during the day. The results show the scope of the utilization of phase change material for low ambient temperature conditions. Under proper conditions a sufficient amount of exergy is stored during the charging period at a low ambient temperature to fulfill the daytime heat load requirement. Under these conditions the cost flow rate of exergy storage is found to be lower than the radiator heating cost flow rate. Thus, the use of exergy storage at low ambient temperatures for heating at higher ambient temperatures makes a significant contribution to cost savings.</p>

APA, Harvard, Vancouver, ISO, and other styles

48

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 (August 20, 2009): 507–14. http://dx.doi.org/10.20965/jrm.2009.p0507.

Full text

Abstract:

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 performance of the proposed librarian robot in u-RT space is evaluated by considering a particular scenario.

APA, Harvard, Vancouver, ISO, and other styles

49

Korzun, Dmitry G., Ilya Nikolaevskiy, and Andrei Gurtov. "Service Intelligence and Communication Security for Ambient Assisted Living." International Journal of Embedded and Real-Time Communication Systems 6, no. 1 (January 2015): 76–100. http://dx.doi.org/10.4018/ijertcs.2015010104.

Full text

Abstract:

Mobile health (m-Health) scenarios and Internet of Things (IoT) technologies form an important direction for enhancing medical systems for Ambient Assisted Living (AAL). Yet current development meets with two challenges: 1) use of patient's health data with strong security guarantees in mobile network and resource-constrained assumptions and in emergency situations, 2) inclusion of personal data to the entire system for “smart” service construction and delivery. This paper presents a smart space based architectural model that adopts emerging IoT technologies to enable security of personal mobile data and their intelligent utilization in health services. To support the service intelligence, the authors employ the smart spaces approach with its prominent technologies adopted from IoT and Semantic Web. The intelligence and security solutions are considered symbiotic to present better user-experience, security level, and utility of a system.

APA, Harvard, Vancouver, ISO, and other styles

50

Robinson, Brian S., Jordan Dorwart, and M. Keith Sharp. "US space cooling potentials for ambient sources with thermal energy storage." International Journal of Ambient Energy 36, no. 6 (December 4, 2013): 268–81. http://dx.doi.org/10.1080/01430750.2013.864585.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!