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pro vyhledávání: '"Randal S. Baker"'
Autor:
Randal S. Baker
Publikováno v:
Nuclear Science and Engineering. 185:107-116
Discrete ordinates transport packages from the Los Alamos National Laboratory are required to perform large computationally intensive time-dependent calculations on massively parallel architectures...
Publikováno v:
Nuclear Engineering and Design. 295:667-673
A consistent, numerically stable algorithm for the solution of the neutron transport equation in the presence of a moving material background is presented for one-dimensional spherical geometry. Manufactured solutions are used to demonstrate the corr
Autor:
Christoph Junghans, Kei Davis, Robert W. Robey, Jon A. Dahl, R. Joe Zerr, Daniel Holladay, Samuel K. Gutierrez, Patrick McCormick, Dorian Arnold, Randal S. Baker, Florian Weik
Publikováno v:
IPDPS
Hybrid parallel program models that combine message passing and multithreading (MP+MT) are becoming more popular, extending the basic message passing (MP) model that uses single-threaded processes for both inter- and intra-node parallelism. A consequ
Publikováno v:
Journal of Critical Care. 24:192-196
Sequential compression devices (SCDs) and venous foot pumps (VFPs) are used to prevent venous thromboembolism in surgical patients, but compliance is presumed to be poor. We evaluated compliance with these devices, compared compliance between intensi
Autor:
Randal S. Baker, Alan T. Davis, James A. Foote, Jamie L. Symons, Jayne E. Paulson, Matthew J. Bettendorf, Paul R. Kemmeter
Publikováno v:
Journal of the American College of Surgeons. 204:392-398
Background Intraperitoneal local anesthetics have been investigated in several laparoscopic procedures that demonstrate improved postoperative pain control and reduced length of hospital stay. No published studies to date address the effectiveness of
Publikováno v:
Nuclear Science and Engineering. 152:164-179
A prototype two-dimensional Diffusion Synthetic Acceleration (DSA) method on a Block-based Adaptive Mesh Refinement (BAMR) transport mesh has been developed. The Block-Adaptive Mesh Refinement Diffusion Synthetic Acceleration (BAMR-DSA) method was te
Autor:
Pablo A. Prichard, Randal S. Baker, Alan T. Davis, James A. Foote, James D. Paauw, Paul R. Kemmeter, Jeffery C. Gawel
Publikováno v:
Journal of Parenteral and Enteral Nutrition. 28:154-157
Early postpyloric feeding is considered the accepted method of nutrition support in critically ill patients. Endoscopic and fluoroscopic techniques are associated with the highest percentage of successful placement. The purpose of this study was to c
Autor:
Randal S. Baker
Publikováno v:
Nuclear Science and Engineering. 141:1-12
We describe the development and implementation of a block-based adaptive mesh refinement (AMR) algorithm for solving the discrete ordinates neutral particle transport equation. AMR algorithms allow...
Publikováno v:
Nuclear Science and Engineering. 134:121-134
The DANTSYS discrete ordinates computer code system is applied to quantitative estimation of water kerma rate distributions in the vicinity of discrete photon sources with energies in the 20- to 80...