Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Mark F. Adams"'
Publikováno v:
SIAM Journal on Scientific Computing. 44:C310-C319
Particle-in-Cell (PIC) methods employ particle representations of unknown fields, but also employ continuum fields for other parts of the problem. Thus projection between particle and continuum bases is required. Moreover, we often need to enforce co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40023587d8262be419c7391d1069ec08
https://doi.org/10.1137/21m1454079
https://doi.org/10.1137/21m1454079
Publikováno v:
Spine. 46:E1022-E1030
STUDY DESIGN Micro-computed tomography- (micro-CT-) based finite element analysis of cadaveric human lumbar vertebrae virtually implanted with total disc arthroplasty (TDA) implants. OBJECTIVE (1) Assess the relationship between vertebral porosity an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75fa74e432deab836c83c25685057190
https://doi.org/10.1097/brs.0000000000004023
https://doi.org/10.1097/brs.0000000000004023
Autor:
Michael Cole, Luis Chacon, David Hatch, Seung-Hoe Ku, Yang Chen, Scott Parker, C. S. Chang, A. Y. Sharma, Robert Hager, Mark F. Adams, Benjamin Sturdevant
Publikováno v:
Physics of Plasmas, vol 28, iss 7
A fully implicit particle-in-cell method for handling the $v_\parallel$-formalism of electromagnetic gyrokinetics has been implemented in XGC. By choosing the $v_\parallel$-formalism, we avoid introducing the non-physical skin terms in Amp\`{e}re's l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f36ef0cf402f4cbb7e288db2f94ff2a
https://escholarship.org/uc/item/8c3184jf
https://escholarship.org/uc/item/8c3184jf
Collisional processes are critical in the understanding of non-Maxwellian plasmas. The Landau form of the Fokker-Planck equation is the gold standard for modeling collisions in most plasmas, however O(N^2) work complexity inhibits its widespread use.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cfeb7106500290b97b01f5840d6bc12
http://arxiv.org/abs/2104.10000
http://arxiv.org/abs/2104.10000
The global total-$f$ gyrokinetic particle-in-cell code XGC, used to study transport in magnetic fusion plasmas, implements a continuum grid to perform the dissipative operations, such as plasma collisions. To transfer the distribution function betwee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56578a709952124db7955fd58316698c
http://arxiv.org/abs/2012.11764
http://arxiv.org/abs/2012.11764
Autor:
Hannah Morgan, Karl Rupp, Junchao Zhang, Hong Zhang, Todd Munson, Jed Brown, Matthew G. Knepley, Mark F. Adams, Richard T. Mills, Stefano Zampini, Satish Balay, Alp Dener, Scott Kruger, Barry Smith
Publikováno v:
Parallel Computing. 108:102831
The Portable Extensible Toolkit for Scientific computation (PETSc) library delivers scalable solvers for nonlinear time-dependent differential and algebraic equations and for numerical optimization. The PETSc design for performance portability addres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92aa5f11504e78de04abfec93b70f561
https://doi.org/10.1016/j.parco.2021.102831
https://doi.org/10.1016/j.parco.2021.102831
Structured-grid adaptive mesh refinement (SAMR) is an approach to mesh generation that supports structured access to data and adaptive mesh refinement for discretized partial differential equations (PDEs). Solution algorithms often require that an in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31b49c3627e19de9575f5e9c11061a43
https://escholarship.org/uc/item/88x5c6bp
https://escholarship.org/uc/item/88x5c6bp
Publikováno v:
Opt Express
Optics express, vol 28, iss 20
Optics express, vol 28, iss 20
Calculations of X-ray wave propagation in large objects are needed for modeling diffractive X-ray optics and for optimization-based approaches to image reconstruction for objects that extend beyond the depth of focus. We describe three methods for ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96cbf7cedf1beb55ac2947593773966e
https://doi.org/10.1364/oe.400240
https://doi.org/10.1364/oe.400240
Autor:
Pedro J, Caraballo, Joseph A, Sutton, Ann M, Moyer, David, Blair, Lois C, Hines, Padma S, Rao, Mark F, Adams, Sahana, Murthy, Tina, Garza, Mary E, Karow, Harmanjit, Singh, Jyothsna, Giri, Donald B, Gabrielson, Jennifer St, Sauver, Suzette J, Bielinski, Mark A, Parkulo
Publikováno v:
Studies in health technology and informatics. 245
Clinical use of pharmacogenomic (PGx) knowledge at the bedside is new and complex. Our program has implemented multiple PGx-CDS interventions in different clinical settings and in multiple commercial EHRs. Herein, we discuss lessons learned and propo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b8f7adea7415f58b30b4621a658aee8e
https://pubmed.ncbi.nlm.nih.gov/29295340
https://pubmed.ncbi.nlm.nih.gov/29295340
Autor:
Seung-Hoe Ku, Yang Chen, Scott Parker, Robert Hager, Mark F. Adams, Choong-Seock Chang, Jianying Lang
Publikováno v:
Hager, R; Lang, J; Chang, CS; Ku, S; Chen, Y; Parker, SE; et al.(2017). Verification of long wavelength electromagnetic modes with a gyrokinetic-fluid hybrid model in the XGC code. Physics of Plasmas, 24(5). doi: 10.1063/1.4983320. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/31w308j5
Physics of plasmas, vol 24, iss 5
Physics of plasmas, vol 24, iss 5
© 2017 Author(s). As an alternative option to kinetic electrons, the gyrokinetic total-f particle-in-cell (PIC) code XGC1 has been extended to the MHD/fluid type electromagnetic regime by combining gyrokinetic PIC ions with massless drift-fluid elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::737d1ece9c0197863bf6dad9f0297bbe
http://arxiv.org/abs/1702.05182
http://arxiv.org/abs/1702.05182