Results 61 to 70 of about 18,724 (213)

Modelamiento e implementación de una planta térmica

open access: yesVisión electrónica, 2021
En este artículo se presenta el modelamiento matemático e implementación de una planta térmica. Para ello, se deducen las ecuaciones de un sistema térmico a través de la relación de calor aplicado para incrementar la temperatura, y la cantidad de calor que se pierde por los diferentes tipos de transferencia térmica; así mismo, del paso de estas ...
Jairo Humberto Fresneda-Alarcón   +3 more
openaire   +2 more sources

Cover and hitting times of hyperbolic random graphs

open access: yesRandom Structures &Algorithms, Volume 65, Issue 4, Page 915-978, December 2024.
Abstract We study random walks on the giant component of Hyperbolic Random Graphs (HRGs), in the regime when the degree distribution obeys a power law with exponent in the range (2,3)$$ \left(2,3\right) $$. In particular, we first focus on the expected time for a random walk to hit a given vertex or visit, that is, cover, all vertices.
Marcos Kiwi   +2 more
wiley   +1 more source

Una propuesta metodológica para una mayor comprensión e interpretación del comportamiento de los fenómenos naturales para las Ciencias Básicas en la Universidad Pontificia Bolivariana: a partir de la observación hasta obtener las respuestas

open access: yesEntre Ciencia e Ingeniería, 2010
En el área Métodos Numéricos del Centro de Ciencia Básica de la Universidad Pontificia Bolivariana, UPB, se viene implementando una metodología con base en un proceso de observación del fenómeno, de identificación del fenómeno y de interpretación del ...
Egidio Esteban Clavijo Gañan   +1 more
doaj   +1 more source

Net primary productivity and litter decomposition rates in two distinct Amazonian peatlands

open access: yesGlobal Change Biology, Volume 30, Issue 8, August 2024.
Our understanding of carbon cycling in tropical peatlands is limited by the lack of data on forest productivity and litter decomposition. Here we present measurements from two floristically distinct Amazonian peatland forests, a palm‐dominated swamp and a thin‐stemmed hardwood swamp.
G. C. Dargie   +13 more
wiley   +1 more source

Marco de referencia para el modelamiento y simulación de la ciberdefensa marítima - MARCIM: estado del arte y metodología

open access: yesDyna
El artículo presenta el estado del arte y metodología del proyecto de investigación doctoral “Marco de referencia para el modelamiento y simulación de la ciberdefensa marítima – MARCIM”.
Diego Edison Cabuya-Padilla   +1 more
doaj   +1 more source

Conservation applications of niche modeling: Native and naturalized ferns may compete for limited Hawaiian dryland habitat

open access: yesApplications in Plant Sciences, Volume 12, Issue 3, May-June 2024.
Abstract Premise Competition from naturalized species and habitat loss are common threats to native biodiversity and may act synergistically to increase competition for decreasing habitat availability. We use Hawaiian dryland ferns as a model for the interactions between land‐use change and competition from naturalized species in determining habitat ...
Krystalyn Edwards‐Calma   +5 more
wiley   +1 more source

Structural modeling of sustainable housing “Oikos tuchineros of cow dung, bahareque and wood”

open access: yesRevista Colombiana de Ciencia Animal Recia, 2017
The indigenous constructions of the Municipality of Tuchín, have been made over time in an artisan way, with materials from the area, which possibly do not meet the normative requirements.
José Rodrigo Hernández- Ávila   +3 more
doaj   +1 more source

Modelamiento Orientado a Objetos - II233 - 202101

open access: yes, 2021
El modelamiento y diseño de sistemas complejos es un curso donde los alumnos utilizarán todas las vistas del Unified Modeling Language (UML). Los alumnos deben concentrar sus esfuerzos en dominar el problema, es decir, la definición del problema. Otro tema importante del curso es la solución, donde los alumnos deben también concentrar esfuerzos ya sea ...
Peña Mendoza, Luis Enrique   +1 more
openaire   +1 more source

An efficient method for optimizing nested open pits with operational bottom space

open access: yesInternational Transactions in Operational Research, Volume 31, Issue 3, Page 1609-1630, May 2024.
Abstract Determining a set of nested pits to support the design of an open pit mine that leads to high economic value is crucial for the strategic planning of these operations; thus, practitioners rely on optimization methods for finding high‐value solutions.
Nelson Morales   +2 more
wiley   +1 more source

Mid-infrared spectroscopy for the estimation of some soil properties

open access: yesAgronomía Colombiana, 2015
Techniques such as mid-infrared (MIR) spectroscopy can be used to identify the classes and properties of soils with high precision. In the present study, 312 soil samples of different orders, which were representative of Colombian agricultural zones ...
Johana P. Bonett   +2 more
doaj   +1 more source

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