Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Mario R. Mondaca"'
1
Akademický článek
Consistent stall air speeds in commercial dairy farms are associated with less variability in cow lying times
Autor: Kimberly J. Reuscher, Nigel B. Cook, Courtney E. Halbach, Mario R. Mondaca, Jennifer M. C. Van Os
Publikováno v: Frontiers in Animal Science, Vol 5 (2024)
Heat stress is a known challenge for dairy farms, but standardized, practical heat abatement assessments are lacking. Our objectives were to evaluate the summer ventilation system performance of Wisconsin freestall facilities, provide farms with feed
Externí odkaz: https://doaj.org/article/ece5cdcda1bb44ac9a182a2a400772e9
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2
Akademický článek
Effect of different air speeds at cow resting height in freestalls on heat stress responses and resting behavior in lactating cows in Wisconsin
Autor: Kimberly J. Reuscher, Nigel B. Cook, Tadeu E. da Silva, Mario R. Mondaca, Karen M. Lutcherhand, Jennifer M.C. Van Os
Publikováno v: Journal of Dairy Science, Vol 106, Iss 12, Pp 9552-9567 (2023)
ABSTRACT: Heat abatement (e.g., soakers, fans) effectively reduces the negative physiological and production effects of heat stress, but no previous studies have documented effective interventions for the reduced lying times observed in response to h
Externí odkaz: https://doaj.org/article/256a9fe34c80456eaa84b4671edf1399
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5
Understanding microenvironments within tunnel-ventilated dairy cow freestall facilities: Examination using computational fluid dynamics and experimental validation
Autor: Mario R. Mondaca, Nigel B. Cook, Christopher Y. Choi
Publikováno v: Biosystems Engineering. 183:70-84
The objective of this study was to determine the correlation between ventilation rates occurring in a barn designed to house dairy cows and the microenvironments that develop within the cow pens. To do this, a computational fluid dynamics model (CFD)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::87a4a8e4e057b1b3d24fc6f740053a04
https://doi.org/10.1016/j.biosystemseng.2019.04.014
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6
Modeled construction and operating costs of different ventilation systems for lactating dairy cows
Autor: Mario R. Mondaca, Nigel B. Cook
Publikováno v: Journal of Dairy Science. 102:896-908
The objectives were to compare capital costs of building and installation of 7 ventilation systems for adult lactating dairy cow housing and evaluate the energy use and operating cost between systems. A cost model comprising stochastic and parametric
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96d457ab7b068bf46f101df94f79de6f
https://doi.org/10.3168/jds.2018-14697
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7
A Computational Fluid Dynamics Model of Biological Heat and Gas Generation in a Dairy Holding Area
Autor: Brian D. Luck, Mario R. Mondaca, Jessica L. Drewry, Christopher Y. Choi
Publikováno v: Transactions of the ASABE. 61:449-460
The design and operation of ventilation systems for animal housing is a crucial component in maintaining a suitable environment for both animals and workers by removing heat, moisture, and gas species. However, important design and operational criter
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2e6055fccec84974ecdf855657fe434
https://doi.org/10.13031/trans.12394
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8
Continuous Respiration Rate Measurement of Heat-Stressed Dairy Cows and Relation to Environment, Body Temperature, and Lying Time
Autor: Nigel B. Cook, Christopher Y. Choi, Mario R. Mondaca, Ian K. Atkins
Publikováno v: Transactions of the ASABE. 61:1475-1485
This study uses a continuously sampling sensor to document the respiration rate dynamics of lactating dairy cows under conditions of heat stress. Previously available respiration rate data on lactating dairy cows had primarily been generated by manua
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd122bf1cff7c65ce66489d5b1cac2a7
https://doi.org/10.13031/trans.12451
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9
Mixing at junctions in water distribution systems: an experimental study
Autor: Pedro Romero-Gomez, Christopher Y. Choi, Inhong Song, Manuel A. Andrade, Mario R. Mondaca
Publikováno v: Urban Water Journal. 15:32-38
The accurate prediction of solute transport in water distribution systems has become a critical component of efforts aimed at delivering clean drinking water safely to large urban populations. One of the central assumptions that water quality models
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68fda0ba48f62dd99f0d00c113681ed2
https://doi.org/10.1080/1573062x.2017.1364395
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10
Assessment of optimal airflow baffle locations and angles in mechanically-ventilated dairy houses using computational fluid dynamics
Autor: Bo Zhou, Li Rong, Xiaoshuai Wang, Mario R. Mondaca, Christopher Y. Choi
Publikováno v: Zhou, B, Wang, X, Mondaca, M R, Rong, L & Choi, C Y 2019, ' Assessment of optimal airflow baffle locations and angles in mechanically-ventilated dairy houses using computational fluid dynamics ', Computers and Electronics in Agriculture, vol. 165, 104930 . https://doi.org/10.1016/j.compag.2019.104930
Baffles are often installed in mechanically cross-ventilated barns to combat heat stress by enhancing the cooling effect produced by the barn’s design. How effectively these baffles operate during warm weather often depends on where each baffle is
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1823f9ac1eae8ae8cad440b111204872
https://pure.au.dk/portal/da/publications/assessment-of-optimal-airflow-baffle-locations-and-angles-in-mechanicallyventilated-dairy-houses-using-computational-fluid-dynamics(bbee10ef-3770-4f08-a31e-e275252e338e).html
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