Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Rosa M. Alzamora"'
1
Akademický článek
Wood Basic Density Assessment of Eucalyptus Genotypes Growing under Contrasting Water Availability Conditions
Autor: Juan Pedro Elissetche, Rosa M. Alzamora, Yosselin Espinoza, Verónica Emhart, Matías Pincheira, Alex Medina, Rafael Rubilar
Publikováno v: Forests, Vol 15, Iss 1, p 185 (2024)
Limited research exists on wood properties in E. nitens × E. globulus hybrid genotypes grown in water-limited conditions generated by the climate change influence in Mediterranean areas. The EUCAHYDRO project aimed to assess environmental stress imp
Externí odkaz: https://doaj.org/article/ca7c235569a84d36bfbeada76e76d755
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2
Akademický článek
Modelling the influence of radiata pine log variables on structural lumber production
Autor: Elvis Gavilán, Rosa M. Alzamora, Luis A. Apiolaza, Katia Sáez, Juan Pedro Elissetche, Antonio Pinto
Publikováno v: Maderas: Ciencia y Tecnología, Vol 25 (2022)
We run logit models to explain the variability of Pinus radiata structural lumber in 71 second and third unpruned logs. The response variable was the proportion of lumber with a static modulus of elasticity greater or equal than 8 GPa, pMSG8+, and th
Externí odkaz: https://doaj.org/article/3b7e1eb8c76d4aa0bef6b415a12b5f9f
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3
Akademický článek
Building deployment portfolios for genotypes under performance instability
Autor: Luis A. Apiolaza, Rosa M. Alzamora
Publikováno v: Silva Fennica, Vol 47, Iss 1 (2013)
We used portfolio theory to analyze the tradeoffs between returns and performance instability of deployment units for Pinus radiata D. Don. We considered three groups of 34 trees each grown to produce appearance lumber, structural lumber, or both. Ri
Externí odkaz: https://doaj.org/article/84708223b7e04006ad1f47bf1cc92de1
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5
Modelamiento de la eficiencia productiva de trozas de lenga (Nothofagus pumilio) destinadas a la producción de madera aserrada en la Patagonia chilena
Autor: Rosa M Alzamora, Carolina Ulloa, Antonio A. Pinto, Alfredo Aguilera
Publikováno v: Madera y Bosques. 25
Un análisis productivo y económico fue realizado sobre una muestra de 184 trozas de lenga (Nothofagus pumilio) obtenidas en el Predio Monte Alto, XII Región, Chile. Las trozas se destinaron a producir las calidades: selecta (S) y común (C1, C2 y
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9c8c5c09aae6307c4dc7db42d71526b
https://doi.org/10.21829/myb.2019.2531746
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6
A DEA approach to assess the efficiency of radiata pine logs to produce New Zealand structural grades
Autor: Luis A. Apiolaza, Rosa M Alzamora
Publikováno v: Journal of Forest Economics. 19:221-233
An efficiency analysis revealed the relative magnitude of wood traits that distinguishes efficient radiata pine logs to produce New Zealand structural grades. Technical and cost efficiencies were obtained by using data envelopment analysis (DEA). Woo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b464febce23f33e2bfd044282ba2ae46
https://doi.org/10.1016/j.jfe.2013.01.003
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7
Using a production approach to estimate economic weights for structural attributes ofPinus radiatawood
Autor: David Evison, Luis A. Apiolaza, Rosa M Alzamora
Publikováno v: Scandinavian Journal of Forest Research. 28:282-290
We modeled the technical relationships between volume of Pinus radiata D. Don structural lumber (with stiffness>8 GPa) and log attributes using a stochastic frontier approach. The production models were Cobb–Douglas and Translog, while the log attr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdfe560b79ab74783f4510a5fd42f8b2
https://doi.org/10.1080/02827581.2012.734328
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8
Uso del valor en riesgo condicional (CVaR) para seleccionar árboles de Pinus radiata para establecimiento operacional
Autor: Rosa M Alzamora, Antonio A. Pinto, Luis A. Apiolaza
Publikováno v: Bosque (Valdivia) v.36 n.1 2015
SciELO Chile
CONICYT Chile
instacron:CONICYT
BOSQUE; Vol. 36 Núm. 1 (2015); 133-137
Conditional Value at Risk (CVaR) was used to account for risk when building a portfolio of Pinus radiata trees for operational plantation deployment, under hypothetical changes on volume, modulus of elasticity, resin defects and lumber prices. The st
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::133ce03ac7967e039bdb8b5418eab59f
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000100015
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9
Valoración de diámetro menor, ramas y módulo de elasticidad en trozas de Pinus radiata mediante una regresión parcial
Autor: Cindy Y Contreras, Rosa M Alzamora
Publikováno v: Bosque (Valdivia) v.36 n.3 2015
SciELO Chile
CONICYT Chile
instacron:CONICYT
Los valores economicos de atributos de calidad de madera de P. radiata son una guia para tomar decisiones en mejoramiento genetico y segregacion de trozas, porque permiten focalizarse en los atributos con mayor valor; no obstante, en Chile, dicha inf
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::221da39b7fde989a7fcea1150db8ec26
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000300020
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10
Building deployment portfolios for genotypes under performance instability
Autor: Rosa M Alzamora, Luis A. Apiolaza
Publikováno v: Silva Fennica, Vol 47, Iss 1 (2013)
We used portfolio theory to analyze the tradeoffs between returns and performance instability of deployment units for Pinus radiata D. Don. We considered three groups of 34 trees each grown to produce appearance lumber, structural lumber, or both. Ri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::deb997e93dbfb6cfc7b54d4d76ddc101
https://doaj.org/article/84708223b7e04006ad1f47bf1cc92de1
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