Zobrazeno 1 - 10 of 94 pro vyhledávání: '"D. Merchan"'
1
Akademický článek
Influence of Temperature and Time on the Corrosion by Sulfidation of AISI-316 Steel exposed under Transfer Line
Autor: J. Sanabria Cala, D. Laverde Catano, D.Y. Pena, D. Merchan-Arenas
Publikováno v: Chemical Engineering Transactions, Vol 57 (2017)
In this research, the influences of temperature and exposure time on the corrosion rate by sulfidation of an AISI-316 stainless steel were evaluated. It was exposed to different temperatures and times, simulating the transfer line entering to an atmo
Externí odkaz: https://doaj.org/article/2587e47a76254f4f8f4fd6cdb01ed60e
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2
Akademický článek
Sulfonation of Expanded Polystyrene Post Consumption, Structural Analysis and Its Application in Chemical Enhanced Oil Recovery
Autor: D. Merchan-Arenas, A. Murcia-Patino, L. Cortes Castillo, V. Kouznetsov
Publikováno v: Chemical Engineering Transactions, Vol 57 (2017)
In this study, we selected two kinds of polystyrene (PS) from a whole solid waste mass, expanded (EPS) and extruded (XPS). These polymers were degassed in ethyl acetate (AcOEt) and sulfonated trough of two different methods. The sulfonated polystyren
Externí odkaz: https://doaj.org/article/6967107d253248698bec353d7aa4ced1
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3
Effects of prepartum vaccination timing relative to pen change with an acidogenic diet on serum and colostrum immunoglobulins in Holstein dairy cows
Autor: Jeffrey Lakritz, Juan Velez, D. Merchan, William P. Weiss, A. Garcia-Guerra, G.M. Schuenemann, H. Bothe, B.T. Menichetti
Publikováno v: Journal of Dairy Science. 104:11072-11081
The objective of the present study was to assess the effects of prepartum vaccination timing relative to pen change with an acidogenic diet at 28 or 21 d before expected parturition (dpp) on colostral and serum IgG concentrations at calving in pregna
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3504832c4f827dbb10882d3eb12213ed
https://doi.org/10.3168/jds.2021-20243
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4
Effect of timing of prepartum vaccination relative to pen change with an acidogenic diet on lying time and metabolic profile in Holstein dairy cows
Autor: G.M. Schuenemann, H. Bothe, Jeffrey Lakritz, A. Garcia-Guerra, Juan Velez, D. Merchan, William P. Weiss, B.T. Menichetti
Publikováno v: Journal of dairy science. 104(10)
The objective was to assess the effect of prepartum vaccination timing relative to pen change with an acidogenic diet at 28 or 21 d before expected parturition (dpp) on lying time (LT), prepartum serum energy status (glucose, IGF-1, and nonesterified
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79893f258cb592f9411eb3b75df7080b
https://pubmed.ncbi.nlm.nih.gov/34364647
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5
Soccer teaching methods in sports training schools in Tunja, Boyacá
Autor: R. D. Merchan-Osorio, W. F. Caro-Cely, J. Florez-Florez
Publikováno v: Journal of Physics: Conference Series. 1161:012008
This study comes from the academic activities carried out by the students of the subjects of Introduction to Sports I and II of the academic degree program in Physical Education, Recreation and Sports of the Fundacion Universitaria Juan de Castellano
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed5246579516745bb0704f0ca71f8d2f
https://doi.org/10.1088/1742-6596/1161/1/012008
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7
Effect of intrauterine infusion of an organic-certified product on uterine health, survival, and fertility of dairy cows with toxic puerperal metritis
Autor: D. Merchan, J.M. Piñeiro, H. Bothe, Carlos A. Risco, Juan Velez, Pablo Pinedo
Publikováno v: Journal of dairy science. 98(5)
The objective was to evaluate the effect of intrauterine infusion of an organic certified product (Optimum UterFlush, Van Beek Natural Science, Orange City, IA) on uterine health, survival, and fertility of cows affected with toxic puerperal metritis
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad0fbfe37ec1cb64c730fc3ed0ad6998
https://pubmed.ncbi.nlm.nih.gov/25771053
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8
Emitter diffusion method for extremely thin silicon wafers
Autor: R. Romero, L. Martínez, Dietmar Leinen, Mercedes Gabás, J.R. Ramos-Barrado, C. Vazquez, D. Merchan, Efraín Ochoa-Martínez, B. Hartiti, Francisco Martín
Publikováno v: Proceedings of the 8th Spanish Conference on Electron Devices, CDE'2011.
The aim of this study is to optimize a low cost phosphorus diffusion process suitable for pn junction formation on extremely thin (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::663ab724cffdfec505199ee5fcb75380
https://doi.org/10.1109/sced.2011.5744189
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9
Conference
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10
Akademický článek
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