Zobrazeno 1 - 10
of 35
pro vyhledávání: '"J. L. Webster"'
Autor:
Paul J. L. Webster, Todd Palmer, Tarasankar Debroy, C. Van Vlack, James M. Fraser, J. J. Blecher, Galbraith Christopher M
Publikováno v:
Science and Technology of Welding and Joining. 19:560-564
The utility of a new laser interferometric technique, inline coherent imaging, for real time keyhole depth measurement during laser welding is demonstrated on five important engineering alloys. The keyhole depth was measured at 200 kHz with a spatial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68c4c25f046f9d2d68b782cbd60aaf3a
https://doi.org/10.1179/1362171814y.0000000225
https://doi.org/10.1179/1362171814y.0000000225
Publikováno v:
Lasers in Surgery and Medicine. 44:249-256
Background and Objective During tissue ablation, laser light can be delivered with high precision in the transverse dimensions but final incision depth can be difficult to control. We monitor incision depth as it progresses, providing feedback to ens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::924b36bd349257d63a8df55a383bb130
https://doi.org/10.1002/lsm.21162
https://doi.org/10.1002/lsm.21162
Autor:
Caroline G. L. Cao, J. L. Webster
Publikováno v:
Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 48:1751-1754
Current surgical robots require surgeons to divide their attention between performing the surgery and driving the robot. Our goal was to examine how this division of attention, as imposed by the new technology, affects the surgeon's performance and m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a2ad92c4d5d9b7b780a9f943ff56ff4
https://doi.org/10.1177/154193120404801526
https://doi.org/10.1177/154193120404801526
Publikováno v:
Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 47:1466-1470
Current robotic systems for minimally invasive surgery do not have effective means of providing haptics to the surgeon. It was hypothesized that providing an analog for force feedback through the visual channel could benefit performance in the absenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44fb64bbdee007dda6602c61bf009ef
https://doi.org/10.1177/154193120304701220
https://doi.org/10.1177/154193120304701220
Publikováno v:
International Congress on Applications of Lasers & Electro-Optics.
In deep-penetration laser welding processes, the shape of the keyhole determines both the incoupling efficiency of the laser radiation and the dynamics of the melt flow. The instability in its shape is responsible for the generation of defects includ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5e30f0fd18b6e351eed5eb9c68fb32a
https://doi.org/10.2351/1.5063091
https://doi.org/10.2351/1.5063091
Publikováno v:
Journal of Applied Physiology. 80:216-225
Blood flow to skeletal muscle during exercise is greater in the trained state. We hypothesized that intrinsic vasomotor reactivity of arteries to active muscle during training bouts would be altered to favor a relative vasodilation after training. To
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4187afe4d673ade9ceb47d79e5c7f0fe
https://doi.org/10.1152/jappl.1996.80.1.216
https://doi.org/10.1152/jappl.1996.80.1.216
Publikováno v:
CLEO: 2013.
We achieve in situ, micron-scale tracking of laser machining through a galvo-telecentric beam delivery system using coherent imaging. We collect both high speed intrapulse and interpulse morphology changes as well as overall sweep-to-sweep depth pene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d950a616a13fdfa07cfea9a5732510d
https://doi.org/10.1364/cleo_qels.2013.jth2a.05
https://doi.org/10.1364/cleo_qels.2013.jth2a.05
Publikováno v:
Conference on Lasers and Electro-Optics 2012.
Controlling depth aspects during practical laser materials processing has remained a challenge for many years. Inline Coherent Imaging is an emerging technique that may hold important answers to "deep" questions for industry and basic science.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9da384ef52885fcc6dba663fff8264e4
https://doi.org/10.1364/cleo_at.2012.atu3l.5
https://doi.org/10.1364/cleo_at.2012.atu3l.5
Autor:
Ben Y. C. Leung, Joe X. Z. Yu, Kevin D. Mortimer, Logan G. Wright, James M. Fraser, Paul J. L. Webster
Publikováno v:
2010 International Symposium on Optomechatronic Technologies.
In applications ranging from noncontact microsurgery to semiconductor blind hole drilling, precise depth control of laser processing is a major challenge. Even expensive a priori characterization cannot compensate for material heterogeneity and stoch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6719685538abd8bb498e9bc21c39a8b0
https://doi.org/10.1109/isot.2010.5687305
https://doi.org/10.1109/isot.2010.5687305
Autor:
Paul J. L. Webster, James M. Fraser, Ben Y. C. Leung, Joe X. Z. Yu, Victor X. D. Yang, Mitchell D. Anderson
Publikováno v:
ResearcherID
We observe sample morphology changes in real time (24 kHz) during and between percussion drilling pulses by integrating a low-coherence microscope into a laser micromachining platform. Nonuniform cut speed and sidewall evolution in stainless steel ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::482b1b1ddf07d02dff6bc6e8a891e1e9
https://pubmed.ncbi.nlm.nih.gov/20195306
https://pubmed.ncbi.nlm.nih.gov/20195306