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Spatially varying dynamical properties of turbid media probed with diffusing temporal light correlation

D. A. Boas, A. G. Yodh
1997 Optical Society of America. Journal A: Optics, Image Science, and Vision  
We demonstrate experimentally and with Monte Carlo simulations that the transport of correlation can be viewed as a correlation wave ͕analogous to a diffuse photon-density wave [Phys.  ...  The diffusion of correlation is used to detect, localize, and characterize dynamical and optical spatial inhomogeneities in turbid media and is accurately modeled by a correlation diffusion equation.  ...  The views, opinions, and/or findings contained in this paper are those of the authors and should not be construed as an official position, policy, or decision of the U.S.  ... 
doi:10.1364/josaa.14.000192 fatcat:af3cfl7eqnaz3gvvkq4vk3sp6q

Distributed Acoustic Sensing Using Dark Fiber for Near-Surface Characterization and Broadband Seismic Event Detection

Jonathan B. Ajo-Franklin, Shan Dou, Nathaniel J. Lindsey, Inder Monga, Chris Tracy, Michelle Robertson, Veronica Rodriguez Tribaldos, Craig Ulrich, Barry Freifeld, Thomas Daley, Xiaoye Li
2019 Scientific Reports  
depth, thus demonstrating that basin-scale variations in hydrological state could be resolved using this technique.  ...  The combination of these two sets of observations conclusively demonstrates that regionally extensive fiber-optic networks can effectively be utilized for a host of geoscience observation tasks at a combination  ...  with his collaborators and students.  ... 
doi:10.1038/s41598-018-36675-8 fatcat:skt3xzanfjf5jb3opt5kbjftya

A Comparison of Implicitly Parallel Multithreaded and Data-Parallel Implementations of an Ocean Model

Andrew Shaw, Arvind, Kyoo-Chan Cho, Christopher Hill, R.Paul Johnson, John Marshall
1998 Journal of Parallel and Distributed Computing  
The generality of the Id programming model, however, allows one to easily and transparently implement a parallel code that computes only in the ocean.  ...  Two parallel implementations of a state-of-the-art ocean model are described and analyzed: one is written in the implicitly parallel language Id for the Monsoon multithreaded dataflow architecture, and  ...  ACKNOWLEDGMENTS This research is a joint effort of the MIT Program in Atmospheres, Oceans, and Climate (PAOC) and the MIT Laboratory for Computer Science.  ... 
doi:10.1006/jpdc.1997.1390 fatcat:7rgstoqmajhdrevmkj4tlvvq4m

Dosimetry and Biological Studies for Microbeam Radiation Therapy at the Canadian Light Source

Danielle L. Anderson
chamber and Monte Carlo simulations were carried out to determine correction factors.  ...  delivered by the 05ID-2 beamline were investigated theoretically using the Monte Carlo package PENELOPE.  ...  Sempau, "PENELOPE-2008, a code system for Monte Carlo simulation of electron and photon transport," Issy-les-Moulineaux France, OECD NEA (2009).  ... 
doi:10.7939/r3n29pc3h fatcat:njgyaxth4jgchlnv2qlrbmvore

Light transport in inhomogeneous scattering media : perturbation theory and biomedical application [article]

Martin Ostermeyer, University, My, University, My
The Monte Carlo code we use is based on the MCML-code by Wang and Jacques [14, 15] , which simulates light propagation in multi-layered media.  ...  This can be computed directly with Monte Carlo simulations by recording and analyzing the photon paths.  ...  Appendix A List of Symbols and fluorescence can be found in [50, 55] . For the solution of the diffusion equation with the multipole expansion method (EXACT module) see [18, 35] and chapter 3.  ... 
doi:10.15488/9478 fatcat:zcxhyyubfvdqdgf3uzatrhezau

Thirty-third Annual Meeting February 12 - 16, 1989 Albert B. Sabin Convention Center Cincinnati, Ohio

1989 Biophysical Journal  
The potentiometric dye NK2367 was superfused in the A pool.  ...  In contrast, a decrease of ca. 30% was observed in true decay rate. SCNdid not produce marked alterations in T system electrical properties measured with NK2367.  ...  *SOPC = stearoyloleoylphosphatidylcholine, RBC = red blood cell, LIPID CHAINS AND NON-LIPID MOLEULES IN BILAYERS: A MONTE CARLO STUDY. H. L. Scott, S. Kalaskar, J.  ... 
doi:10.1016/s0006-3495(89)82821-8 fatcat:2sy42wrp3zc7jppltj6kprqjdi

Thirty-eighth Annual Meeting March 6-10, 1994 New Orleans Convention Center New Orleans, Louisiana. Thursday Symposia and Posters, Part III

1994 Biophysical Journal  
The fluorescence and phosphorescence lifetimes for these hybrids decrease in the order: a, (-PHb > a -PHb > P-PHb at 250 C and 77 K which are interpreted in terms of intersubunit energy and electron transfer  ...  Temperature dependence of the FLN spectra were different with a transition seen at -50 and 70 K, for porphyrin in a and ,B chain respectively.  ...  Monte, Hidetake Imasato, Marcel Tabak)). Instituto de Fisica e Qufmica de Sao Carlos-USP, C.P. 369, 13560-970, Sao Carlos, SP, Brazil. 1. J.B. Speyer, R.T. Weber, S.K. DasGupta and R.G.  ... 
doi:10.1016/s0006-3495(94)80829-x fatcat:t52b574qs5cmlo5472bnojqfwu

Multi-Distance Depth-Resolved Diffuse Correlation Spectroscopy

Kyle Verdecchia, Mamadou DIOP, Ting-Yim Lee, Keith St. Lawrence
2014 Biomedical Optics 2014   unpublished
In Chapter 4, a multi-layered model was implemented to separate signal contributions from scalp and brain; derived CBF changes were compared to computed tomography perfusion.  ...  Ultimately, the work completed in this thesis should help ii with the development of a hybrid DCS/NIRS system suitable for monitoring cerebral hemodynamics and energy metabolism in critical-ill patients  ...  Radiative transport assumes energy is conserved as a photon scatters in and out of an infinitesimal volume, whereas correlation transport similarly describes a transfer of correlation, except that a photon  ... 
doi:10.1364/biomed.2014.bm3a.13 fatcat:pzatccgcf5bixfiq7f3sjqrtk4

Thirty-first Annual Meeting 22–26 February 1987 Rivergate Convention Center, New Orleans, Louisiana

1987 Biophysical Journal  
In consideration of a "photon computer", the dimension of the computing element, Ax, is order of wave length, of which value at 300K is around 5pm. The wave length of 0.2A corresponds to X-ray range.  ...  We describe the construction of a particularly simple scanning tunneling microscope (STM) in which biopolymers are deposited onto a substrate using electrophoresis and imaged with the tunneling tip and  ...  Dynamic Monte Carlo studies have been performed on various diamond lattice models of a-proteins.  ... 
doi:10.1016/s0006-3495(87)83354-4 fatcat:ijar6bcdzjgdjmk4q4imukaa6a

Generating renderers [article]

Arsène Pérard-Gayot, Universität Des Saarlandes
In this thesis, we opt for another way of encoding domainspeci c knowledge: We implement a generic, high-level, and declarative rendering and traversal library in a functional language, and later re ne  ...  The consequence of these limitations is that programmers resort to writing the same code twice when they need to port their algorithm on a di erent architecture, and that the code itself becomes di cult  ...  to compute a Monte Carlo estimator of Equation (1.1).  ... 
doi:10.22028/d291-33532 fatcat:7phrxpvkjjfczjhvuxp262ris4

GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run [article]

The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration: R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, N. Adhikari, R. X. Adhikari, V. B. Adya, C. Affeldt, D. Agarwal (+1649 others)
2021 arXiv   pre-print
There are 35 compact binary coalescence candidates identified by at least one of our search algorithms with a probability of astrophysical origin p_astro > 0.5.  ...  Including the 35 candidates from O3b in addition to those from GWTC-2.1, GWTC-3 contains 90 candidates found by our analysis with p_astro > 0.5 across the first three observing runs.  ...  Bilby provides support for both Markov-chain Monte Carlo samplers and nested sampling techniques [130] .  ... 
arXiv:2111.03606v2 fatcat:h3exfdddjneyfn7m5kkukvnk2a

The observational signatures of nascent neutron stars

These exotic objects, with masses larger than the Sun confined to the size of a small city, offer a laboratory to study fundamental physics in conditions unlike any other in the Universe, and impossible  ...  In this thesis, I show how observations of massive explosions in the Universe can probe the birth of these exotic objects and provide insights into the lives and deaths of stars more massive than the Sun  ...  We use a Markov Chain Monte Carlo algorithm (Foreman-Mackey et al., 2012) to fit the X-ray afterglow of SGRBs with our model using uniform priors for f gw , n, τ, A, and r between [log 10 (−1), log 10  ... 
doi:10.26180/16766923 fatcat:jh5i6ondd5cjvbutvdln5345gy

Dagstuhl Reports, Volume 7, Issue 1, January 2017, Complete Issue [article]

We use this viewpoint to explore and compare the power of paradigms such as branching and dynamic programming, and to shed light on the true complexity of various problems.  ...  We intend to propose a follow-on seminar on a similar topic in the future. This report contains the abstracts of the talks and software demonstrations, and summaries of the group discussion sessions.  ...  We outline approximate algorithms based on Markov chain Monte Carlo, expectation propagation, and dual decomposition. We give results on some NLP tasks.  ... 
doi:10.4230/dagrep.7.1 fatcat:eb5yydhkhnb4xpbvalztqllpt4