Zobrazeno 1 - 10 of 10 pro vyhledávání: '"H. A. Dugan"'
1
Akademický článek
Modular Compositional Learning Improves 1D Hydrodynamic Lake Model Performance by Merging Process‐Based Modeling With Deep Learning
Autor: R. Ladwig, A. Daw, E. A. Albright, C. Buelo, A. Karpatne, M. F. Meyer, A. Neog, P. C. Hanson, H. A. Dugan
Publikováno v: Journal of Advances in Modeling Earth Systems, Vol 16, Iss 1, Pp n/a-n/a (2024)
Abstract Hybrid Knowledge‐Guided Machine Learning (KGML) models, which are deep learning models that utilize scientific theory and process‐based model simulations, have shown improved performance over their process‐based counterparts for the si
Externí odkaz: https://doaj.org/article/831fb36099eb4be58945941e165c4790
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2
Akademický článek
Brief communication: The hidden labyrinth: deep groundwater in Wright Valley, Antarctica
Autor: H. A. Dugan, P. T. Doran, D. Grombacher, E. Auken, T. Bording, N. Foged, N. Foley, J. Mikucki, R. A. Virginia, S. Tulaczyk
Publikováno v: The Cryosphere, Vol 16, Pp 4977-4983 (2022)
Since the 1960s, a deep groundwater system in Wright Valley, Antarctica, has been the hypothesized source of brines to hypersaline Don Juan Pond and Lake Vanda, both of which are rich in calcium and chloride. Modeling studies do not support other pos
Externí odkaz: https://doaj.org/article/c2614cb54e364c31b9d9fd93ecec0022
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3
Akademický článek
Thermal legacy of a large paleolake in Taylor Valley, East Antarctica, as evidenced by an airborne electromagnetic survey
Autor: K. F. Myers, P. T. Doran, S. M. Tulaczyk, N. T. Foley, T. S. Bording, E. Auken, H. A. Dugan, J. A. Mikucki, N. Foged, D. Grombacher, R. A. Virginia
Publikováno v: The Cryosphere, Vol 15, Pp 3577-3593 (2021)
Previous studies of the lakes of the McMurdo Dry Valleys have attempted to constrain lake level history, and results suggest the lakes have undergone hundreds of meters of lake level change within the last 20 000 years. Past studies have utilized the
Externí odkaz: https://doaj.org/article/e9cafb2d9a644f4cb00564c07869c059
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4
Akademický článek
Lake thermal structure drives interannual variability in summer anoxia dynamics in a eutrophic lake over 37 years
Autor: R. Ladwig, P. C. Hanson, H. A. Dugan, C. C. Carey, Y. Zhang, L. Shu, C. J. Duffy, K. M. Cobourn
Publikováno v: Hydrology and Earth System Sciences, Vol 25, Pp 1009-1032 (2021)
The concentration of oxygen is fundamental to lake water quality and ecosystem functioning through its control over habitat availability for organisms, redox reactions, and recycling of organic material. In many eutrophic lakes, oxygen depletion in t
Externí odkaz: https://doaj.org/article/2245004bf9194cc38f4e779136c3384d
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5
Akademický článek
Stratigraphy of Lake Vida, Antarctica: hydrologic implications of 27 m of ice
Autor: H. A. Dugan, P. T. Doran, B. Wagner, F. Kenig, C. H. Fritsen, S. A. Arcone, E. Kuhn, N. E. Ostrom, J. P. Warnock, A. E. Murray
Publikováno v: The Cryosphere, Vol 9, Iss 2, Pp 439-450 (2015)
Lake Vida, located in Victoria Valley, is one of the largest lakes in the McMurdo dry valleys and is known to contain hypersaline liquid brine sealed below 16 m of freshwater ice. For the first time, Lake Vida was drilled to a depth of 27 m. Below 21
Externí odkaz: https://doaj.org/article/6e67db19b1a243c898f30986d7d2c06b
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6
Causes and Characteristics of Electrical Resistivity Variability in Shallow (<4 m) Soils in Taylor Valley, East Antarctica
Autor: W. S. Gutterman, P. T. Doran, R. A. Virginia, J. E. Barrett, K. F. Myers, S. M. Tulaczyk, N. T. Foley, J. A. Mikucki, H. A. Dugan, D. J. Grombacher, T. S. Bording, E. Auken
Publikováno v: Gutterman, W S, Doran, P T, Virginia, R A, Barrett, J E, Myers, K F, Tulaczyk, S M, Foley, N T, Mikucki, J A, Dugan, H A, Grombacher, D J, Bording, T S & Auken, E 2023, ' Causes and Characteristics of Electrical Resistivity Variability in Shallow ( <4 m) Soils in Taylor Valley, East Antarctica ', Journal of Geophysical Research: Earth Surface, vol. 128, no. 2, e2022JF006696 . https://doi.org/10.1029/2022JF006696
Airborne electromagnetic surveys collected in December 2011 and November 2018 and three soil sampling transects were used to analyze the spatial heterogeneity of shallow (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::082ec08072620b773ebc334f051d3495
https://doi.org/10.1029/2022jf006696
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7
Duration of antimicrobial therapy for nosocomial pneumonia: possible strategies for minimizing antimicrobial use in intensive care units
Autor: H A Dugan, Rose Jung, Robert MacLaren
Publikováno v: Journal of Clinical Pharmacy and Therapeutics. 28:123-129
Summary Objective: To review published data evaluating shorter courses of antibiotic therapy for nosocomial pneumonia and provide recommendations for minimizing antimicrobial use in intensive care units. Data source: Literature was identified through
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c41b3a8d11305d0fee6f8892f6b9b5f
https://doi.org/10.1046/j.1365-2710.2003.00471.x
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9
Career Development And The Petroleum Industry
Autor: H. Sloane Dugan, Craig F. Lamb
Publikováno v: Journal of Canadian Petroleum Technology. 24
Introduction Historically, many employees believed bard work and long hours would insure success in their jobs. However, three trends have emerged that indicate employees' views of work are shifting. First, as the educational level of the workforce h
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::548aebf7505792f29fe14a99eb43f837
https://doi.org/10.2118/85-06-07
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