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Kinodynamic RRT*: Optimal Motion Planning for Systems with Linear Differential Constraints [article]

Dustin J. Webb, Jur van den Berg
2012 arXiv   pre-print
two-dimensional (with their third component implicitly zero), g = 9.8m/s 2 is the gravity, m is the mass of the quadrotor (kg), the distance between the center of the vehicle and each of the rotors (m), and j  ... 
arXiv:1205.5088v1 fatcat:m6jyqfhywnh5hfmpcbkeuslbki

Kinodynamic RRT*: Asymptotically optimal motion planning for robots with linear dynamics

Dustin J. Webb, Jur van den Berg
2013 2013 IEEE International Conference on Robotics and Automation  
with the following linearized dynamics: x =     p v r w     , u =   u f u x u y   , A =      0 I 0 0 0 0 0 g −g 0 0 0 0 0 0 0 I 0 0 0 0      , B =      0 0 0 0 1/m 0 0 0 0 I/j  ...  two-dimensional (with their third component implicitly zero), g = 9.8m/s 2 is the gravity, m is the mass of the quadrotor (kg), the distance between the center of the vehicle and each of the rotors (m), and j  ... 
doi:10.1109/icra.2013.6631299 dblp:conf/icra/WebbB13 fatcat:dz2ufptwwfeznenmegwyvyhs6u

Online parameter estimation via real-time replanning of continuous Gaussian POMDPs

Dustin J. Webb, Kyle L. Crandall, Jur van den Berg
2014 2014 IEEE International Conference on Robotics and Automation (ICRA)  
(19) , t is the most recent step, and n = t − j defines a window size. V. SIMULATION AND EXPERIMENT RESULTS We tested our approach with three systems.  ...  , m n represents link masses, r n−1,n represents link center of mass, I n represents link moment of inertia, J mn represents motor inertia, b n represents viscous damping, c n represents coulomb friction  ... 
doi:10.1109/icra.2014.6907743 dblp:conf/icra/WebbCB14 fatcat:74txdb3dhbg5fb4b24jl6bghoi

Wavefront-error performance characterization for the James Webb Space Telescope (JWST) Integrated Science Instrument Module (ISIM) science instruments

David L. Aronstein, J. S. Smith, Thomas P. Zielinski, Randal Telfer, Severine C. Tournois, Dustin B. Moore, James R. Fienup, Howard A. MacEwen, Giovanni G. Fazio, Makenzie Lystrup, Natalie Batalha, Nicholas Siegler (+1 others)
2016 Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave  
The science instruments (SIs) comprising the James Webb Space Telescope (JWST) Integrated Science Instrument Module (ISIM) were tested in three cryogenic-vacuum test campaigns in the NASA Goddard Space  ...  Scott Acton, formerly of Ball Aerospace; J.  ...  This work is supported by the James Webb Space Telescope project at NASA Goddard Space Flight Center.  ... 
doi:10.1117/12.2233842 fatcat:s72xtuzopretjhhvzjeevuicam

Differences in Short-Term Outcomes Between Primary and Revision Anterior Cervical Discectomy and Fusion

Bryce A. Basques, Nathaniel T. Ondeck, Erik J. Geiger, Andre M. Samuel, Adam M. Lukasiewicz, Matthew L. Webb, Daniel D. Bohl, Dustin H. Massel, Benjamin C. Mayo, Kern Singh, Jonathan N. Grauer
2017 Spine  
Retrospective cohort study. To compare short-term morbidity for primary and revision anterior cervical discectomy and fusion (ACDF). Revision ACDF procedures are relatively common, yet their risks are poorly characterized in the literature. There is a need to assess the relative risk of revision ACDF procedures compared with primary surgery. The prospectively collected American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database was used to identify patients
more » ... o underwent primary and revision ACDF from 2005 to 2014. The occurrence of 30-day postoperative complications, readmission, operative time, and postoperative length of stay were compared between primary and revision procedures using multivariate regression to control for patient and operative characteristics. A total of 20,383 ACDF procedures were identified, 1219 (6.0%) of which were revision cases. On multivariate analysis, revision procedures were associated with significantly increased risk of any adverse event (relative risk [RR] 2.3, P < 0.001), any severe adverse event (RR 2.2, P < 0.001), thromboembolic events (RR 3.3, P = 0.001), surgical site infections (RR 3.2, P < 0.001), return to the operating room (RR 1.9, P = 0.001), any minor adverse event (RR 2.5, P < 0.001), and blood transfusion (RR 8.3, P < 0.001). Revision procedures had significantly increased risk of readmission within 30 days (RR = 1.6, P = 0.001). Minor, but statistically significant increases in average operative time and postoperative length of stay were identified for revisions procedures (7 min and half a day, respectively [P < 0.001 for both]). Revision procedures were associated with significantly increased risk of multiple adverse outcomes, including thromboembolic events, surgical site infections, return to the operating room, blood transfusion, and readmission within 30 days. These results are important for patient counseling and risk stratification. 3.
doi:10.1097/brs.0000000000001718 pmid:28207667 fatcat:h2yzm3lwabhxhha67wygdgygqe

Page 214 of Forest and Stream; A Journal of Outdoor Life, Travel, Nature Study, Shooting, Fishing, Yachting Vol. 38, Issue 9 [page]

1892 Forest and Stream; A Journal of Outdoor Life, Travel, Nature Study, Shooting, Fishing, Yachting  
White 3, James ne 3, Dustin 4, J. W. Ful- ford 3, Machaman 4, Barnes 2, Bonham 2, Quick 4. No. 2, 6 live birds: Bower 5, Quick 5, J. B. Rhoades 2, Mercer 4, Dustin 6, Fulford 6, E. A.  ...  Event No. 1,4 live birds: Matbew Quick 1, Clark Hagenbuch 3, J.S, Dustin 3, J. W. Fuller 4, J. H. Mercer 1, Louis Lowenberg 3, Dr. Bonham 2, H. B.  ... 

Page 22 of Journal of Aircraft Vol. 14, Issue 1 [page]

1977 Journal of Aircraft  
22 COLE, DUSTIN, AND NEINER J. AIRCRAFT ®Dustin, M. O. and Neiner, G. H., “‘Evaluation of Prototype '©Campbell, D.  ...  R., and Webb, J. A., Jr., ‘“Gust craft for Steady-State and Dynamic Evaluation,’” NASA TM X-3138, Generator for a Supersonic Wind Tunnel,’” NASA TM X-3120, Dec. Nov. 1974. 1974.  ... 

Page 567 of Brownson's Quarterly Review Vol. 1, Issue [page]

1847 Brownson's Quarterly Review  
J. WEBB, — CINCINNATI: CONAHAN AND BROTHER, — ST. LOUIS: G, KELLER.— 8S A- VANNAH, GA.: T. J. COSGROVE.—NEW ORLEANS: THOMAS O’DONNELL.  ...  Tue Dustin Review on DEVELOPMENTS The Dublin Review, No. XLIV., Art. III. Sr. Stanistaus KotsKa .- The Life of St. Stanislaus Kotsha, of the Society of Siem Patron of Novices. From the Italian.  ... 

Page 68 of National Union Catalog Vol. 26, Issue [page]

1953 National Union Catalog  
Commveniom dustin. Australia. La L a. L a. otal Communist Party dissolution ae m a aaalieg name: Leicester Chisholm Webb.  ...  DU620. 996.9 56-13897 Webb, Jesse Lee, 1878-1942. - Horse-flies: biologies and relation to western agricul- ture. By J. L. Webb and R. W. Wells...  ... 

Page 203 of Nature: New Biology Vol. 245, Issue 146 [page]

1973 Nature: New Biology  
Zool.,2, 430 (1962). 3 Dustin, jun., P., Cell Tissue Kinetics, 5, 519 (1972). * Rizzo, A. J., and Webb, T. E., Eur. J. Biochem., 27, 136 (1972). ° Cooper, H. L., J. biol.  ...  P., and Webb, T. E., CG R 32, 1821 (1973). » Cancer Res., 203 Yu, L.'C., Racevskis, J., and Webb, T. E., Cancer Res., 32, 2314 (1972). Morris, H. P., and Wagner, B.  ... 

Page 25 of Great Britain. Public Record Office. Calendar of State Papers. Domestic-Commonwealth Vol. , Issue Addenda/General Index [page]

1657 Great Britain. Public Record Office. Calendar of State Papers. Domestic-Commonwealth  
Edited by J. Bricstocke Suerrarp, Esq. ReeistauM EpistoLARUM FRATRIS J. PecKHAM, ARCHIEPISCOPI CANTUARIENSIS. Vol. III. Edited by Cuantes Trick Martin, Esq., B.A., F.S.A.  ...  Mary’s Asser, Dustin, &c., preserved in the Bodleian Library and British Museum. Ldited by Joun Tuomas Gupert, Esq., F.S.A., M.R.L.A. Vol. I.  ... 

Page 176 of American Spirit Vol. 64, Issue 3 [page]

1930 American Spirit  
Josephine J. Wick. From Hannah Jameson Chapter. Following 4 manuscripts from Phebe Dustin Chapter: The Danas. hy ae filereu oe or — 4 Ponts. he Rapalje Neale. ade tem Chane of Dilienbock Family. J.  ...  J. E. Bowman. 1929. New Jersey Veterans of American Revolution. J. E. Bowman. New York Veterans of American Revolution J. E.  ... 

Page 4 of SMPTE Motion Imaging Journal Vol. 66, Issue 4 [page]

1957 SMPTE Motion Imaging Journal  
Keitz, Keitz & Herndon, 4409 Belmont, Dallas Managers: Jim Webb Cooper, Jerry A. Dickinson, Hervey Gardenhire, Merl C. Hartung, Bruce Howard, Erwin J. Pattist HOLLYWOOD Chairman, John W.  ...  Colburn, J. W. Ditamore, James A. Kellock, Frank H. Riffle, Ralph J. Sherry, P. E. Smith DALLAS-FT. WORTH Chairman, Bruce S. Jamieson, 6521 Danbury Lane, Dallas Secretary- Treasurer, Roddy K.  ... 

NASA Contributions to Fluidic Systems

TERRY J. PAGE WEATHERS
1973 Journal of Spacecraft and Rockets  
R., ‘‘Use of a Fluidic Oscillator as a Humidity Sensor for a Hydrogen-Steam Mixture,’”’ TM-X-1269, Aug. 1966, NASA. 25 Webb, J. A., Jr. and Gebben, V.  ...  ., ‘A Breadboard Flueric-Controlled Pneumatic Stepping Motor System,”’ TN-D-4495, April 1968, NASA. 3 Dustin, M. O. and Wallhagen, R.  ... 
doi:10.2514/3.61901 fatcat:5lby2vn56naxnhgmxyb7raeedu

Page 418 of Journal of Spacecraft and Rockets Vol. 10, Issue 7 [page]

1973 Journal of Spacecraft and Rockets  
R., ‘‘Use of a Fluidic Oscillator as a Humidity Sensor for a Hydrogen-Steam Mixture,’”’ TM-X-1269, Aug. 1966, NASA. 25 Webb, J. A., Jr. and Gebben, V.  ...  ., ‘A Breadboard Flueric-Controlled Pneumatic Stepping Motor System,”’ TN-D-4495, April 1968, NASA. 3 Dustin, M. O. and Wallhagen, R.  ... 
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