Results 61 to 70 of about 419,193 (163)

Early detection strategies for invading tree pests: Targeted surveillance and stakeholder perspectives

Journal of Applied Ecology, Volume 62, Issue 4, Page 857-871, April 2025.
We provide the first surveillance map for emerald ash borer incursions in GB with potential for deployment by government agencies and stakeholders concerned with biosecurity. Our framework establishes optimal surveillance locations depending on factors, including detection within different timeframes, knowledge certainty of entry pathways and ...
Vasthi Alonso Chávez, Nathan Brown, Frank van den Bosch, Stephen Parnell, Alison Dyke, Clare Hall, Berglind Karlsdottir, Mariella Marzano, Joanne Morris, Liz O'Brien, David Williams, Alice E. Milne   +11 more
wiley   +1 more source

Del diseño convencional al diseño óptimo. Posibilidades y variantes. Parte I. Análisis de sensibilidad y optimización local y global [PDF]

, 1993
Este trabajo comienza describiendo cómo se lleva a cabo el proceso de diseño en la ingeniería a través de métodos de pruebalerror y de reglas basadas en la exberiencia. Tras exponer casos que contradicen la común intuición de los proyectistas, recalca la
Hernández, Santiago
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Desarrollo de un algoritmo de optimización global en colonias de hormigas con selección de región factible para espacios continuos [PDF]

, 2011
ResumenEn este estudio se introduce un nuevo algoritmo para la metaheurística de optimización de colonias de hormigas (ACO) que se ha desarrollado para resolver problemas de optimización global con variables de decisión continuas. El algoritmo propuesto,
Bonilla-Petriciolet, A., Fernández-Vargas, J.A.   +1 more
core   +1 more source

Association of maternal body mass index with hemodynamic and vascular alterations at 35–37 weeks' gestation

Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 303-310, March 2025.
ABSTRACT Objective Globally, one in four pregnant women is classified as overweight or obese, based on their prepregnancy body mass index (BMI). Obese pregnant women are at increased risk of adverse pregnancy outcomes and long‐term cardiovascular disease that occurs earlier in life.
M. Charakida, C. Chatzakis, L. A. Magee, A. Syngelaki, T. Mansukhani, P. von Dadelszen, K. H. Nicolaides   +6 more
wiley   +1 more source

On a fixed point theorem for operator systems and eigenvalue criteria for existence of positive solutions [PDF]

Opuscula Mathematica
We provide an alternative approach, based on the Leray-Schauder fixed point index in cones, to a fixed point theorem for operator systems due to Precup. Our focus is on the case of operators whose components are entirely of compressive type. The abstract
Laura M. Fernández-Pardo, Jorge Rodríguez-López   +1 more
doaj   +1 more source

Optimización de Procesos en Centro de Distribución [PDF]

, 2008
Tesis (Ingeniero Industrial)RESUMEN: El presente trabajo, se desarrolla en un Centro de Distribución de materiales, ubicada en la comuna de Quilicura, región metropolitana; consiste en realizar una mejora en los procedimientos realizados en los ...
Arenas Román, Mauricio Javier
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Metodología para la optimización conjunta de la programación del riego y estaciones de bombeos directos [PDF]

, 2016
Se describe una nueva metodología para reducción de los costes energéticos de operación del riego en redes de riego con bombeo directo, contemplando la optimización conjunta de la organización de los riegos y la modulación de las presiones de la ...
Aliod Sebastián, R., Faci, Elena, García Asín, Susana, García, A., Seral, P., Zorrilla Alcaine, F.   +5 more
core   +1 more source

calibrar: An R package for fitting complex ecological models

Methods in Ecology and Evolution, Volume 16, Issue 3, Page 507-519, March 2025.
Abstract The fitting or parameter estimation of complex ecological models is a challenging optimisation task, with a notable lack of tools for fitting complex, long runtime or stochastic models. calibrar is an R package that is dedicated to the fitting of complex models to data.
Ricardo Oliveros‐Ramos, Yunne‐Jai Shin   +1 more
wiley   +1 more source

Analysis of the Sign of the Solution for Certain Second-Order Periodic Boundary Value Problems with Piecewise Constant Arguments

Mathematics, 2020
We find sufficient conditions for the unique solution of certain second-order boundary value problems to have a constant sign. To this purpose, we use the expression in terms of a Green’s function of the unique solution for impulsive linear periodic ...
Sebastián Buedo-Fernández, Daniel Cao Labora, Rosana Rodríguez-López, Stepan A. Tersian   +3 more
doaj   +1 more source

Optimization of the long-term planning of supply chains with decaying performance [PDF]

, 2016
This master's thesis addresses the optimization of supply and distribution chains considering the effect that equipment aging may cause over the performance of facilities involved in the process.
Somoza Tornos, Ana
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