scholarly journals Spatiotemporally multiplexed integral imaging projector for large-scale high-resolution three-dimensional display

2004 ◽  
Vol 12 (4) ◽  
pp. 557 ◽  
Author(s):  
Ju-Seog Jang ◽  
Yong-Seok Oh ◽  
Bahram Javidi
Keyword(s):  
High Resolution ◽  
Large Scale ◽  
Three Dimensional ◽  
Integral Imaging ◽  
Three Dimensional Display

scholarly journals Properties of Steady Geostrophic Turbulence with Isopycnal Outcropping

2012 ◽  
Vol 42 (1) ◽  
pp. 18-38 ◽  
Author(s):  
G. Roullet ◽  
J. C. McWilliams ◽  
X. Capet ◽  
M. J. Molemaker
Keyword(s):  
High Resolution ◽  
Large Scale ◽  
Mechanical Energy ◽  
Baroclinic Instability ◽  
Three Dimensional ◽  
Primary Source ◽  
Eddy Diffusivity ◽  
Energy Cycle ◽  
Geostrophic Turbulence ◽  
Pv Gradient

Abstract High-resolution simulations of β-channel, zonal-jet, baroclinic turbulence with a three-dimensional quasigeostrophic (QG) model including surface potential vorticity (PV) are analyzed with emphasis on the competing role of interior and surface PV (associated with isopycnal outcropping). Two distinct regimes are considered: a Phillips case, where the PV gradient changes sign twice in the interior, and a Charney case, where the PV gradient changes sign in the interior and at the surface. The Phillips case is typical of the simplified turbulence test beds that have been widely used to investigate the effect of ocean eddies on ocean tracer distribution and fluxes. The Charney case shares many similarities with recent high-resolution primitive equation simulations. The main difference between the two regimes is indeed an energization of submesoscale turbulence near the surface. The energy cycle is analyzed in the (k, z) plane, where k is the horizontal wavenumber. In the two regimes, the large-scale buoyancy forcing is the primary source of mechanical energy. It sustains an energy cycle in which baroclinic instability converts more available potential energy (APE) to kinetic energy (KE) than the APE directly injected by the forcing. This is due to a conversion of KE to APE at the scale of arrest. All the KE is dissipated at the bottom at large scales, in the limit of infinite resolution and despite the submesoscales energizing in the Charney case. The eddy PV flux is largest at the scale of arrest in both cases. The eddy diffusivity is very smooth but highly nonuniform. The eddy-induced circulation acts to flatten the mean isopycnals in both cases.

An Integral Imaging Three Dimensional Display Method Based on Aperture Stop Array

2014 ◽  
Vol 34 (9) ◽  
pp. 0910004
Author(s):  
刘尧 Liu Yao ◽  
邓欢 Deng Huan ◽  
罗成高 Luo Chenggao ◽  
王琼华 Wang Qionghua
Keyword(s):  
Three Dimensional ◽  
Integral Imaging ◽  
Aperture Stop ◽  
Three Dimensional Display

Advanced mobile three-dimensional display based on computer-generated integral imaging

2018 ◽  
Author(s):  
Nam Kim ◽  
Munkh-Uchral Erdenebat ◽  
Yan-Ling Piao ◽  
Nyamsuren Darkhanbaatar ◽  
Ki-Chul Kwon
Keyword(s):  
Three Dimensional ◽  
Integral Imaging ◽  
Three Dimensional Display

scholarly journals Studies of the ISM in the LMC using SN1987A

1991 ◽  
Vol 148 ◽  
pp. 431-431
Author(s):  
Max Pettini
Keyword(s):  
High Resolution ◽  
Interstellar Medium ◽  
Large Scale ◽  
Signal To Noise Ratio ◽  
Three Dimensional ◽  
Large Magellanic Cloud ◽  
Absorption Lines ◽  
High Signal ◽  
Hii Region ◽  
Sn 1987A

The exceptional brightness of SN1987A provided a wealth of opportunities for probing not only the interstellar medium in our Galaxy and in the Large Magellanic Cloud (LMC), but also any intergalactic matter between the two. Spectroscopic work has been directed both towards searches for very weak absorption lines, which require data of exceptionally high signal-to-noise ratio, and towards recording spectra of known features at unprecedentedly high resolution. Both approaches have yielded exciting and unexpected results. The first detection of [FeX] absorption has revealed the presence of million-degree gas in the interstellar medium of the LMC, possibly resulting from the explosions of previous supernovae in the 30-Doradus HII region. The ultra-high-resolution observations have been successful in resolving the hyperfine structure of the sodium D lines in several interstellar clouds along the line of sight to the supernova. This implies that the clouds are at temperatures of, at most, 170 K and have internal turbulent velocities of not more than 0.2 km s−1; large-scale motions thus appear to be mainly subsonic in these clouds. Radio observations of HI emission at 21-cm with the Parkes telescope have been combined with measurements of a variety of ultraviolet absorption lines, obtained with the International Ultraviolet Explorer satellite, to give the most detailed picture yet of the chemical composition of the gas between the Galaxy and the LMC. Finally, photographic monitoring of the light echo of SN 1987A over the last two years has provided a three-dimensional view of the interstellar environment in which SN 1987A exploded, complementing vividly the information deduced from the spectroscopic results.

20.2: A Convertible Two-Dimensional-Three-Dimensional Display Based on a Modified Integral Imaging Technique

2006 ◽  
Vol 37 (1) ◽  
pp. 1146
Author(s):  
Seong-Woo Cho ◽  
Jae-Hyeung Park ◽  
Yunhee Kim ◽  
Heejin Choi ◽  
Joohwan Kim ◽  
...  
Keyword(s):  
Imaging Technique ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Integral Imaging ◽  
Three Dimensional Display

Convertible two-dimensional-three-dimensional display using an LED array based on modified integral imaging

2006 ◽  
Vol 31 (19) ◽  
pp. 2852 ◽  
Author(s):  
Seong-Woo Cho ◽  
Jae-Hyeung Park ◽  
Yunhee Kim ◽  
Heejin Choi ◽  
Joohwan Kim ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Two Dimensional ◽  
Integral Imaging ◽  
Led Array ◽  
Three Dimensional Display

Glasses-free large size high-resolution three-dimensional display based on the projector array

2014 ◽  
Author(s):  
Xinzhu Sang ◽  
Peng Wang ◽  
Xunbo Yu ◽  
Tianqi Zhao ◽  
Xing Gao ◽  
...  
Keyword(s):  
High Resolution ◽  
Three Dimensional ◽  
Large Size ◽  
Three Dimensional Display
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