Search

Your search keyword '"Edwards, Matt"' showing total 319 results
Start Over Author "Edwards, Matt" Publication Year Range Last 50 years
319 results on '"Edwards, Matt"'

3. Adaptive sampling in particle image velocimetry

Author

Edwards, Matt, Poole, Daniel, and Allen, Christian

Subjects
629.1, PIV, Adaptive, Sampling, Statistics
Abstract

Particle Image Velocimetry (PIV) provides a way to analyse the instantaneous fluid displacement within some field of view, without influencing the underlying fluid. The displacement is measured by comparing two images of the fluid separated by a small timestep, extracting the observed displacement between the imaged particles through the use of cross-correlation windows. The size and locations (grid spacing) of such are traditionally user-defined and have a significant impact on the accuracy of displacement measurement. To simplify the process, image analysis algorithms have, over time, reduced the number of controllable parameters through coupling to a small subset. This may accelerate the learning curve for users, yet greatly reduces the flexibility of the analysis process. Accordingly, optimising such parameters is user-dependent and often not possible due to unavoidable trade-offs between resolution and robustness. The work presented in this thesis, therefore, investigates methods to maximise the extraction of information from PIV images, autonomously and efficiently. To achieve this, the research was focussed in three areas; reduction of unnecessary computation, improving the flexibility of analysis, and adaptivity, i.e. automatic decision making. The thesis presents methods for each theme, analysing their performance and implications for optimal, automatic, PIV image analysis. The first approach is to optimise the existing analysis architecture, by preventing unnecessary computation based on local convergence of the displacement field, to achieve greater utilisation of computational resources. This is shown within to be an effective approach, reducing the number of correlations by almost half in typical conditions. Alternatively, the analysis algorithm can be made adaptive such that it can self-select better analysis conditions. This approach hinges on the de-coupling of analysis parameters, which is found to raise many questions, regarding the optimal choice of such parameters, that are clarified and explored within. One such question is the initial window size, for which a novel algorithm is presented which automatically selects the locally optimal value. Further to this, fully unstructured and semi-structured analysis algorithms are explored, with novel implementations presented in both cases. The semi-structured approach which is found to be simple, robust, and highly computationally efficient, while still providing much of the flexibility of fully unstructured, representing a promising avenue for future research.

Published
2021

4. Dominant-negative variants in CBX1 cause a neurodevelopmental disorder

Author

Kuroda, Yukiko, Iwata-Otsubo, Aiko, Dias, Kerith-Rae, Temple, Suzanna E.L., Nagao, Koji, De Hayr, Lachlan, Zhu, Ying, Isobe, Shin-Ya, Nishibuchi, Gohei, Fiordaliso, Sarah K., Fujita, Yuki, Rippert, Alyssa L., Baker, Samuel W., Leung, Marco L., Koboldt, Daniel C., Harman, Adele, Keena, Beth A., Kazama, Izumi, Subramanian, Gopinath Musuwadi, Manickam, Kandamurugu, Schmalz, Betsy, Latsko, Maeson, Zackai, Elaine H., Edwards, Matt, Evans, Carey-Anne, Dulik, Matthew C., Buckley, Michael F., Yamashita, Toshihide, O'Brien, W. Timothy, Harvey, Robert J., Obuse, Chikashi, Roscioli, Tony, and Izumi, Kosuke

Published
2023
Full Text
View/download PDF

6. Global patterns of kelp forest change over the past half-century

Author

Krumhansl, Kira A, Okamoto, Daniel K, Rassweiler, Andrew, Novak, Mark, Bolton, John J, Cavanaugh, Kyle C, Connell, Sean D, Johnson, Craig R, Konar, Brenda, Ling, Scott D, Micheli, Fiorenza, Norderhaug, Kjell M, Pérez-Matus, Alejandro, Sousa-Pinto, Isabel, Reed, Daniel C, Salomon, Anne K, Shears, Nick T, Wernberg, Thomas, Anderson, Robert J, Barrett, Nevell S, Buschmann, Alejandro H, Carr, Mark H, Caselle, Jennifer E, Derrien-Courtel, Sandrine, Edgar, Graham J, Edwards, Matt, Estes, James A, Goodwin, Claire, Kenner, Michael C, Kushner, David J, Moy, Frithjof E, Nunn, Julia, Steneck, Robert S, Vásquez, Julio, Watson, Jane, Witman, Jon D, and Byrnes, Jarrett EK

Subjects
Life on Land, Arctic Regions, Climate Change, Ecosystem, Forests, Kelp, Oceans and Seas, kelp forest, Laminariales, global change, climate change, coastal ecosystems
Abstract

Kelp forests (Order Laminariales) form key biogenic habitats in coastal regions of temperate and Arctic seas worldwide, providing ecosystem services valued in the range of billions of dollars annually. Although local evidence suggests that kelp forests are increasingly threatened by a variety of stressors, no comprehensive global analysis of change in kelp abundances currently exists. Here, we build and analyze a global database of kelp time series spanning the past half-century to assess regional and global trends in kelp abundances. We detected a high degree of geographic variation in trends, with regional variability in the direction and magnitude of change far exceeding a small global average decline (instantaneous rate of change = -0.018 y-1). Our analysis identified declines in 38% of ecoregions for which there are data (-0.015 to -0.18 y-1), increases in 27% of ecoregions (0.015 to 0.11 y-1), and no detectable change in 35% of ecoregions. These spatially variable trajectories reflected regional differences in the drivers of change, uncertainty in some regions owing to poor spatial and temporal data coverage, and the dynamic nature of kelp populations. We conclude that although global drivers could be affecting kelp forests at multiple scales, local stressors and regional variation in the effects of these drivers dominate kelp dynamics, in contrast to many other marine and terrestrial foundation species.

Published
2016

7. On the Spectral Evolution of Cool, Helium-Atmosphere White Dwarfs: Detailed Spectroscopic and Photometric Analysis of DZ Stars

Author

Dufour, P., Bergeron, P., Liebert, James, Harris, H. C., Knapp, G. R., Hall, Patrick B., Strauss, Michael A., Collinge, Matthew J., and Edwards, Matt C.

Subjects
Astrophysics
Abstract

We present a detailed analysis of a large spectroscopic and photometric sample of DZ white dwarfs based on our latest model atmosphere calculations. We revise the atmospheric parameters of the trigonometric parallax sample of Bergeron, Leggett, & Ruiz (12 stars) and analyze 147 new DZ white dwarfs discovered in the Sloan Digital Sky Survey. The inclusion of metals and hydrogen in our model atmosphere calculations leads to different atmospheric parameters than those derived from pure helium models. Calcium abundances are found in the range from log (Ca/He) = -12 to -8. We also find that fits of the coolest objects show peculiarities, suggesting that our physical models may not correctly describe the conditions of high atmospheric pressure encountered in the coolest DZ stars. We find that the mean mass of the 11 DZ stars with trigonometric parallaxes, = 0.63 Mo, is significantly lower than that obtained from pure helium models, = 0.78 Mo, and in much better agreement with the mean mass of other types of white dwarfs. We determine hydrogen abundances for 27% of the DZ stars in our sample, while only upper limits are obtained for objects with low signal-to-noise ratio spectroscopic data. We confirm with a high level of confidence that the accretion rate of hydrogen is at least two orders of magnitude smaller than that of metals (and up to five in some cases) to be compatible with the observations. We find a correlation between the hydrogen abundance and the effective temperature, suggesting for the first time empirical evidence of a lower temperature boundary for the hydrogen screening mechanism. Finally, we speculate on the possibility that the DZA white dwarfs could be the result of the convective mixing of thin hydrogen-rich atmospheres with the underlying helium convection zone., Comment: 67 pages, 32 figures, accepted for publication in ApJ

Published
2007
Full Text
View/download PDF

10. Abstract 5104: Targeting IL-1B synergizes with PD-1 blockade for enhanced T and B cell immune responses and inhibition of early lung cancer development

Author

Treekitkarnmongkol, Warapen, primary, Han, Guangchun, additional, Rahal, Zahraa, additional, Feng, Jiping, additional, Sinjab, Ansam, additional, Cascone, Tina, additional, Stevenson, Christopher S., additional, Sweeney, Cheryl, additional, Edwards, Matt, additional, Spira, Avrum, additional, Fujimoto, Junya, additional, Moghaddam, Seyed Javad, additional, Wang, Linghua, additional, and Kadara, Humam, additional

Published
2023
Full Text
View/download PDF

13. Clymene dolphins (Stenella clymene) in the eastern tropical Atlantic: distribution, group size, and pigmentation pattern

Author

Weir, Caroline R., Coles, Phil, Ferguson, Amy, May, Duncan, Baines, Mick, Figueirdo, Inês, Reichelt, Maren, Goncalves, Luis, de Boer, Marijke N., Rose, Barrie, Edwards, Matt, Travers, Sue, Ambler, Mike, Félix, Hugo, Wall, Dave, Azhakesan, Valeria A. A., Betenbaugh, Mike, Fennelly, Lea, Haaland, Sigbjørn, Hak, Guus, Juul, Terji, Leslie, Rob W., McNamara, Brian, Russell, Nichola, Smith, Jaclyn A., Tabisola, Heather M., Teixeira, Alexandra, Vermeulen, Els, Vines, Juliet, and Williams, Andy

Published
2014

15. We really do. Care!

Author

Edwards, Matt

Subjects
United States. Air Force -- Human resource management, Decompression sickness -- Prevention, Air pilots, Military -- Health aspects, Company personnel management, General interest, Military and naval science
Abstract

BY LT. COL. MATT 'MANGO' EDWARDS Many thanks to contributions from ACC/A3MH, 9 MXG, 9 PSPTS, and 9 RW/PA So there I was ... above 60,000 feet on an operational [...]

Published
2014

18. Topological data analysis reveals genotype–phenotype relationships in primary ciliary dyskinesia

Author

Shoemark, Amelia, primary, Rubbo, Bruna, additional, Legendre, Marie, additional, Fassad, Mahmoud R., additional, Haarman, Eric G., additional, Best, Sunayna, additional, Bon, Irma C.M., additional, Brandsma, Joost, additional, Burgel, Pierre-Regis, additional, Carlsson, Gunnar, additional, Carr, Siobhan B., additional, Carroll, Mary, additional, Edwards, Matt, additional, Escudier, Estelle, additional, Honoré, Isabelle, additional, Hunt, David, additional, Jouvion, Gregory, additional, Loebinger, Michel R., additional, Maitre, Bernard, additional, Morris-Rosendahl, Deborah, additional, Papon, Jean-Francois, additional, Parsons, Camille M., additional, Patel, Mitali P., additional, Thomas, N. Simon, additional, Thouvenin, Guillaume, additional, Walker, Woolf T., additional, Wilson, Robert, additional, Hogg, Claire, additional, Mitchison, Hannah M., additional, and Lucas, Jane S., additional

Published
2021
Full Text
View/download PDF

20. Dominant-negative mutations inCBX1cause a neurodevelopmental disorder

Author

Kuroda, Yukiko, primary, Iwata-Otsubo, Aiko, additional, Dias, Kerith-Rae, additional, Temple, Suzanna E.L., additional, Nagao, Koji, additional, De Hayr, Lachlan, additional, Zhu, Ying, additional, Isobe, Shin-Ya, additional, Nishibuchi, Gohei, additional, Fiordaliso, Sarah K, additional, Fujita, Yuki, additional, Rippert, Alyssa L., additional, Baker, Samuel W, additional, Leung, Marco L., additional, Koboldt, Daniel C., additional, Harman, Adele, additional, Keena, Beth A., additional, Kazama, Izumi, additional, Musuwadi Subramanian, Gopinath, additional, Manickam, Kandamurugu, additional, Schmalz, Betsy, additional, Latsko, Maeson, additional, Zackai, Elaine H, additional, Edwards, Matt, additional, Evans, Carey-Anne, additional, Dulik, Matthew C., additional, Buckley, Michael F., additional, Yamashita, Toshihide, additional, O’Brien, W. Timothy, additional, Harvey, Robert J., additional, Obuse, Chikashi, additional, Roscioli, Tony, additional, and Izumi, Kosuke, additional

Published
2020
Full Text
View/download PDF

21. Geographic variation in responses of kelp forest communities of the California Current to recent climatic changes

Author

Beas‐Luna, Rodrigo, primary, Micheli, Fiorenza, additional, Woodson, C. Brock, additional, Carr, Mark, additional, Malone, Dan, additional, Torre, Jorge, additional, Boch, Charles, additional, Caselle, Jennifer E., additional, Edwards, Matt, additional, Freiwald, Jan, additional, Hamilton, Scott L., additional, Hernandez, Arturo, additional, Konar, Brenda, additional, Kroeker, Kristy J., additional, Lorda, Julio, additional, Montaño‐Moctezuma, Gabriela, additional, and Torres‐Moye, Guillermo, additional

Published
2020
Full Text
View/download PDF

25. Index

Author

Pagnoni Berns, Fernando Gabriel and Edwards, Matthew

Published
2023

32. Acknowledgments

Author

Pagnoni Berns, Fernando Gabriel and Edwards, Matthew

Published
2023

36. Contents

Author

Pagnoni Berns, Fernando Gabriel and Edwards, Matthew

Published
2023

46. Parametric Study of the Estimation of Indoor Trolley Wheel Stiffness for Use in a Rolling Noise Prediction Model

Author

Edwards, Matt, Chevillotte, Fabien, Bécot, François-Xavier, Jaouen, Luc, and Totaro, Nicolas

Abstract

Proceedings of the ICA 2019 and EAA Euroregio : 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019 : 9-13 September 2019, Aachen, Germany / proceedings editor: Martin Ochmann, Michael Vorländer, Janina Fels 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, ICA 2019, Aachen, Germany, 9 Sep 2019 - 13 Sep 2019; Aachen (2019)., Published by Aachen

Published
2019

47. Segra Park to host Clemson-Carolina neutral site game

Author

Edwards, Matt

Subjects
Time, Cities and towns, Baseball, News, opinion and commentary, Sports and fitness
Abstract

Byline: Matt Edwards Since South Carolina and Clemson squared off on the baseball diamond for the first time in 1989, they have played a neutral site game in just three [...]

Published
2020

50. The Newest Biology. Elementary School Children Elaborate on the Standard Texts.

Author

Edwards, Matt

Abstract

Ideas and scientific definitions as reported by 9-12 year olds collected from class discussions, essays, or examination papers over the course of 32 years are presented. Topics include the living body, tracts, metabolism, the senses, the skeleton, the heart, respiratory ailments, genetics, microbiology, and modern medicine. (KR)

Published
1991

Catalog

Books, media, physical & digital resources
See catalog results