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pro vyhledávání: '"Morgan, P S"'
Nonprehensile actions such as pushing are crucial for addressing multi-object rearrangement problems. To date, existing nonprehensile solutions are all robot-centric, i.e., the manipulation actions are generated with robot-relevant intent and their o
Externí odkaz:
http://arxiv.org/abs/2410.00261
Autor:
Croughan, Michelle K, Paganin, David M, Alloo, Samantha J, Ahlers, Jannis N, How, Ying Ying, Harker, Stephanie A, Morgan, Kaye S.
In recent years, a novel x-ray imaging modality has emerged that reveals unresolved sample microstructure via a "dark-field image", which provides complementary information to conventional "bright-field" images, such as attenuation and phase-contrast
Externí odkaz:
http://arxiv.org/abs/2404.17612
Kerr optical frequency division with integrated photonics for stable microwave and mmWave generation
Autor:
Sun, Shuman, Harrington, Mark W., Tabatabaei, Fatemehsadat, Hanifi, Samin, Liu, Kaikai, Wang, Jiawei, Wang, Beichen, Yang, Zijiao, Liu, Ruxuan, Morgan, Jesse S., Bowers, Steven M., Morton, Paul A., Nelson, Karl D., Beling, Andreas, Blumenthal, Daniel J., Yi, Xu
Optical frequency division (OFD) has revolutionized microwave and mmWave generation and set spectral purity records owing to its unique capability to transfer high fractional stability from optical to electronic frequencies. Recently, rapid developme
Externí odkaz:
http://arxiv.org/abs/2402.11772
X-ray diffusive dark-field imaging, which allows spatially unresolved microstructure to be mapped across a sample, is an increasingly popular tool in an array of settings. Here, we present a new algorithm for phase and dark-field computed tomography
Externí odkaz:
http://arxiv.org/abs/2310.09496
Publikováno v:
Optica 11(8), 1182-1191 (2024)
Dark-field X-ray imaging is a novel modality which visualises scattering from unresolved microstructure. Most dark-field imaging techniques rely on crystals or structured illumination, but recent work has shown that dark-field effects are observable
Externí odkaz:
http://arxiv.org/abs/2309.15874
Autor:
Waszewski, A., Morgan, J. S., Chhetri, R., Ekers, R., Cheung, M. C. M., Bhat, N. D. R, Johnston-Hollitt, M.
We have conducted a blind search in 49 consecutive days of interplanetary scintillation observations made by the Murchison Widefield Array from mid-2019, with overlapping daily observations approximately East and South-East of the Sun at an elongatio
Externí odkaz:
http://arxiv.org/abs/2309.10349
Autor:
Sun, Shuman, Wang, Beichen, Liu, Kaikai, Harrington, Mark, Tabatabaei, Fatemehsadat, Liu, Ruxuan, Wang, Jiawei, Hanifi, Samin, Morgan, Jesse S., Jahanbozorgi, Mandana, Yang, Zijiao, Bowers, Steven, Morton, Paul, Nelson, Karl, Beling, Andreas, Blumenthal, Daniel, Yi, Xu
The generation of ultra-low noise microwave and mmWave in miniaturized, chip-based platforms can transform communication, radar, and sensing systems. Optical frequency division that leverages optical references and optical frequency combs has emerged
Externí odkaz:
http://arxiv.org/abs/2305.13575
Publikováno v:
IEEE International Conference on Robotics and Automation (ICRA), 2023
Contact can be conceptualized as a set of constraints imposed on two bodies that are interacting with one another in some way. The nature of a contact, whether a point, line, or surface, dictates how these bodies are able to move with respect to one
Externí odkaz:
http://arxiv.org/abs/2303.05565
Autor:
Pollock, J. A., Croton, L. C. P., Morgan, K. S., Crossley, K. J., Wallace, M. J., Buckley, G. A., Hooper, S. B., Kitchen, M. J.
X-ray imaging is a fast, precise and non-invasive method of imaging which, combined with computed tomography, provides detailed 3D rendering of samples. Incorporating propagation-based phase contrast can vastly improve data quality for weakly attenua
Externí odkaz:
http://arxiv.org/abs/2301.12647
Publikováno v:
Scientific Reports 13, 5424 (2023)
Speckle-based phase-contrast X-ray imaging (SB-PCXI) can reconstruct high-resolution images of weakly-attenuating materials that would otherwise be indistinguishable in conventional attenuation-based imaging. The experimental setup of SB-PCXI require
Externí odkaz:
http://arxiv.org/abs/2302.01288