scholarly journals Perceptual Restoration of Temporally Distorted Speech in L1 vs. L2: Local Time Reversal and Modulation Filtering

2018 ◽  
Vol 9 ◽  
Author(s):  
Mako Ishida ◽  
Takayuki Arai ◽  
Makio Kashino
Keyword(s):  
Local Time ◽  
Time Reversal ◽  
Modulation Filtering

scholarly journals Time reversal of some stationary jump diffusion processes from population genetics

2010 ◽  
Vol 42 (4) ◽  
pp. 1147-1171
Author(s):  
Martin Hutzenthaler ◽  
Jesse Earl Taylor
Keyword(s):  
Population Genetics ◽  
Genetic Variation ◽  
Local Time ◽  
Time Reversal ◽  
Boundary Point ◽  
Diffusion Processes ◽  
Jump Diffusion ◽  
Jump Diffusion Processes ◽  
Forward Diffusion ◽  
Forward Process

We describe the processes obtained by time reversal of a class of stationary jump diffusion processes that model the dynamics of genetic variation in populations subject to repeated bottlenecks. Assuming that only one lineage survives each bottleneck, the forward process is a diffusion on [0,1] that jumps to the boundary before diffusing back into the interior. We show that the behavior of the time-reversed process depends on whether the boundaries are accessible to the diffusive motion of the forward process. If a boundary point is inaccessible to the forward diffusion then time reversal leads to a jump diffusion that jumps immediately into the interior whenever it arrives at that point. If, instead, a boundary point is accessible then the jumps off of that point are governed by a weighted local time of the time-reversed process.

scholarly journals UNIQUENESS OF CANONICAL TENSOR MODEL WITH LOCAL TIME

2012 ◽  
Vol 27 (18) ◽  
pp. 1250096 ◽  
Author(s):  
NAOKI SASAKURA
Keyword(s):  
Local Time ◽  
Time Reversal ◽  
Canonical Formalism ◽  
Hamiltonian Constraint ◽  
Tensor Model ◽  
Group Iii ◽  
Canonical Variables ◽  
Change Of Variables ◽  
Cubic Polynomial ◽  
Constraint Algebra

Canonical formalism of the rank-three tensor model has recently been proposed, in which "local" time is consistently incorporated by a set of first class constraints. By brute-force analysis, this paper shows that there exist only two forms of a Hamiltonian constraint which satisfies the following assumptions: (i) A Hamiltonian constraint has one index. (ii) The kinematical symmetry is given by an orthogonal group. (iii) A consistent first class constraint algebra is formed by a Hamiltonian constraint and the generators of the kinematical symmetry. (iv) A Hamiltonian constraint is invariant under time reversal transformation. (v) A Hamiltonian constraint is an at most cubic polynomial function of canonical variables. (vi) There are no disconnected terms in a constraint algebra. The two forms are the same except for a slight difference in index contractions. The Hamiltonian constraint which was obtained in the previous paper and behaved oddly under time reversal symmetry can actually be transformed to one of them by a canonical change of variables.

scholarly journals Local time-reversal-symmetry breaking indx2−y2superconductors

2000 ◽  
Vol 61 (5) ◽  
pp. 3255-3258 ◽  
Author(s):  
M. J. Graf ◽  
A. V. Balatsky ◽  
J. A . Sauls
Keyword(s):  
Symmetry Breaking ◽  
Local Time ◽  
Time Reversal ◽  
Time Reversal Symmetry

scholarly journals Time reversal of some stationary jump diffusion processes from population genetics

2010 ◽  
Vol 42 (04) ◽  
pp. 1147-1171
Author(s):  
Martin Hutzenthaler ◽  
Jesse Earl Taylor
Keyword(s):  
Population Genetics ◽  
Genetic Variation ◽  
Local Time ◽  
Time Reversal ◽  
Boundary Point ◽  
Diffusion Processes ◽  
Jump Diffusion ◽  
Jump Diffusion Processes ◽  
Forward Diffusion ◽  
Forward Process

We describe the processes obtained by time reversal of a class of stationary jump diffusion processes that model the dynamics of genetic variation in populations subject to repeated bottlenecks. Assuming that only one lineage survives each bottleneck, the forward process is a diffusion on [0,1] that jumps to the boundary before diffusing back into the interior. We show that the behavior of the time-reversed process depends on whether the boundaries are accessible to the diffusive motion of the forward process. If a boundary point is inaccessible to the forward diffusion then time reversal leads to a jump diffusion that jumps immediately into the interior whenever it arrives at that point. If, instead, a boundary point is accessible then the jumps off of that point are governed by a weighted local time of the time-reversed process.

Time Reversal in Lossy Material: An Assessment

PIERS Online ◽  
2006 ◽  
Vol 3 (8) ◽  
pp. 1259-1263
Author(s):  
Ian Scott ◽  
Ana Vukovic ◽  
Phillip Sewell
Keyword(s):  
Time Reversal ◽  
Lossy Material

Performansi aktual modul photovoltaik dengan pengarah matahari

2018 ◽  
Vol 12 (2) ◽  
pp. 98 ◽  
Author(s):  
Jalaluddin . ◽  
Baharuddin Mire
Keyword(s):  
Solar Radiation ◽  
Local Time ◽  
Performance Characteristic ◽  
Electrical Energy ◽  
Photovoltaic Module ◽  
Experiment Data ◽  
Actual Performance ◽  
Pv Module ◽  
Solar Tracking ◽  
Pv Modules

Actual performance of photovoltaic module with solar tracking is presented. Solar radiation can be converted into electrical energy using photovoltaic (PV) modules. Performance of polycristalline silicon PV modules with and without solar tracking are investigated experimentally. The PV module with dimension 698 x 518 x 25 mm has maximum power and voltage is 45 Watt and 18 Volt respectively. Based on the experiment data, it is concluded that the performance of PV module with solar tracking increases in the morning and afternoon compared with that of fixed PV module. It increases about 18 % in the morning from 10:00 to 12:00 and in the afternoon from 13:30 to 14:00 (local time). This study also shows the daily performance characteristic of the two PV modules. Using PV module with solar tracking provides a better performance than fixed PV module. 

Thermoacoustic imaging using time reversal

2007 ◽  
Author(s):  
Hubert Grün ◽  
Christian Hofer ◽  
Markus Haltmeier ◽  
Günther Paltauf ◽  
Peter Burgholzer
Keyword(s):  
Time Reversal ◽  
Thermoacoustic Imaging
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