Zobrazeno 1 - 10
of 24
pro vyhledávání: '"CARMEN O. MÁRQUEZ"'
Autor:
Víctor J. García, Edwin P. Duque, José Antonio Inaudi, Carmen O. Márquez, Josselyn D. Mera, Anita C. Rios
Publikováno v:
Heliyon, Vol 7, Iss 6, Pp e07221- (2021)
Different types of tuned mass dampers (TMD) have been applied to reduce wind and seismic induces vibrations in buildings. We analyze a pendulum tuned mass damper (PTMD) to reduce vibrations of structures that exhibit elastoplastic behavior subjected
Externí odkaz:
https://doaj.org/article/2dc4a060567249639d8b2d3f64e9619f
Autor:
VÍCTOR J. GARCÍA, CARMEN O. MÁRQUEZ, ALONSO R. ZÚÑIGA-SUÁREZ, BERENICE C. ZÚÑIGA-TORRES, PEDRO J RÍOS-GÓNZALEZ
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 93, Iss 3 (2021)
Abstract The objectives of this research were to study (1) the dispersion of MWCNTs in an aqueous system by three commercial admixtures (CAds) for concrete, and (2) the effect of CAds and MWCNTs on indirect tensile strength and electrical conductivit
Externí odkaz:
https://doaj.org/article/4c86d477d741440aa58581d38f72d453
Autor:
Víctor J. García, Carmen O. Márquez, Alonso R. Zúñiga-Suárez, Berenice C. Zuñiga-Torres, Luis J. Villalta-Granda
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 11, Iss 2, Pp 343-363 (2017)
Abstract The objective of this work was finding out the most advisable testing conditions for an effective and robust characterization of the tensile strength (TS) of concrete disks. The independent variables were the loading geometry, the angle subt
Externí odkaz:
https://doaj.org/article/51adb06b414c440fadf6489cd4e9b7ed
Autor:
Víctor J. García, Carmen O. Márquez, Tom M. Isenhart, Marco Rodríguez, Santiago D. Crespo, Alexis G. Cifuentes
Publikováno v:
Heliyon, Vol 5, Iss 10, Pp e02701- (2019)
Ecuadorian páramo ecosystems (EPEs) function as water sources, contain large soil carbon stores and high levels of biodiversity, and support human populations. The EPEs are mainly herbaceous páramo (HP). To inform policy and management and help dri
Externí odkaz:
https://doaj.org/article/7fab7e3b19cb4d68845af9e01e7c4113
Autor:
Víctor J. García, Carmen O. Márquez, Marco V. Rodríguez, Jonathan J. Orozco, Christian D. Aguilar, Anita C. Ríos
Publikováno v:
Agronomy, Vol 10, Iss 12, p 1922 (2020)
The páramo is home to a significant proportion of global biodiversity and provides essential services for the development of life for millions of people in Ecuador. However, land use/land cover (LULC) changes threaten biodiversity and modify its fun
Externí odkaz:
https://doaj.org/article/dd91590e009d4a80bd1916ce97e8f380
Publikováno v:
Resources, Vol 8, Iss 1, p 36 (2019)
This study aimed to assess the bioremediation of soils polluted with fuel oil 6 (FO6) using diffuse reflectance (DR) spectroscopy in the visible and near infrared (Vis-NIR) electromagnetic spectrum. To achieve our goal, we determined the spectral sig
Externí odkaz:
https://doaj.org/article/1b1948b82ec24624b2af79bc3bfc39ac
Publikováno v:
Agronomy, Vol 7, Iss 4, p 76 (2017)
The restoration of riparian zones has been an important issue in many regions for the recovery of ecosystem functions. The objective of this study was to assess soil aggradation in a 7-year established riparian switchgrass buffer (SGB) and in a non-b
Externí odkaz:
https://doaj.org/article/59794c4ddd2c4eec8cad1f9a9010e67a
Autor:
Johanna E. Ayala-Izurieta, Carmen O. Márquez, Víctor J. García, Celso G. Recalde-Moreno, Marcos V. Rodríguez-Llerena, Diego A. Damián-Carrión
Publikováno v:
Geosciences, Vol 7, Iss 2, p 34 (2017)
We presented a methodology to accurately classify mountainous regions in the tropics. These landscapes are complex in terms of their geology, ecosystems, climate and land use. Obtaining accurate maps to assess land cover change is essential. The obje
Externí odkaz:
https://doaj.org/article/1a9f49ed66fc4dfe807aad868aa2b5b7
Autor:
Víctor J. García, Jesús Delegido, Nieves Pasqualotto, Jorge Marcelo Sisti, Carlos Arturo Jara Santillán, Shari Van Wittenberghe, Johanna Elizabeth Ayala Izurieta, Carmen O. Márquez
Publikováno v:
Carbon Balance and Management
Carbon Balance and Management, Vol 16, Iss 1, Pp 1-19 (2021)
Carbon Balance and Management, Vol 16, Iss 1, Pp 1-19 (2021)
Background Soil organic carbon (SOC) affects essential biological, biochemical, and physical soil functions such as nutrient cycling, water retention, water distribution, and soil structure stability. The Andean páramo known as such a high carbon an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cad41edcca7a5fecb6eb39d0cd7342f
http://europepmc.org/articles/PMC8543914
http://europepmc.org/articles/PMC8543914
Publikováno v:
European Journal of Soil Science. 70:466-479
The objective of this study was to develop a conceptual framework to study soil aggregate dynamics through the integration of aggregation, disruption, stabilization and destabilization processes of soil constituent units. We used aggregate‐size dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0384a8b77ad4d6c1c6a6408e2e42b0af
https://doi.org/10.1111/ejss.12775
https://doi.org/10.1111/ejss.12775