Results 51 to 60 of about 412,628 (163)

Estimating and pricing commodity futures with time‐delay stochastic processes

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 7, Page 7469-7480, 15 May 2025.
In commodity futures pricing models, the commodity present price is generally considered to reflect all information in the markets and past information is not regarded important. However, there is some empirical evidence that shows that this fact is unrealistic. In this paper, we consider some stochastic models with delay for pricing commodity futures.
Lourdes Gómez‐Valle   +1 more
wiley   +1 more source

Modelación y optimización de la red de acueducto urbano del municipio de Tibaná-Boyacá [PDF]

open access: yes, 2017
Trabajo de InvestigaciónPlanteamiento de propuestas de optimización a través de la modelación hidráulica en el programa EPANET de la red de acueducto urbano del municipio de Tibaná-Boyacá.INTRODUCCIÓN 1. GENERALIDADES 2. CARACTERIZACIÓN DEL MUNICIPIO.
Sarmiento-Huertas, Luis Santiago   +1 more
core  

Achieving sustainable water distribution through penalty‐free multi‐objective evolutionary design optimization

open access: yesWorld Water Policy, Volume 11, Issue 2, Page 499-525, May 2025.
Abstract Water distribution networks are costly long‐term investments, prompting researchers to seek cost reduction and efficient design solutions using optimization techniques. In this context, the Penalty‐Free Multi‐Objective Evolutionary Algorithm (PFMOEA) is employed alongside pressure‐dependent analysis (PDA) to optimize water distribution systems
Emily Kambalame, John Ndiritu
wiley   +1 more source

Un aplicativo para la enseñanza del problema de optimización del consumo en economía empleando mathematica® [PDF]

open access: yes, 2011
El presente trabajo ilustra el desarrollo de un aplicativo en Mathematica ®, para mostrar el problema de optimización del consumidor. En él se tiene una representación gráfica en el espacio y en el plano cartesiano de las funciones involucradas en el ...
Marciales, Nicolás
core  

Sequencing situations with position‐dependent effects under cooperation

open access: yesInternational Transactions in Operational Research, Volume 32, Issue 3, Page 1620-1640, May 2025.
Abstract This paper innovatively addresses the effect of cooperation on sequencing situations with position‐dependent effects. Specifically, we ensure the convexity of the associated sequencing games under the fulfillment of certain conditions related to the neighbor switching gains.
A. Saavedra‐Nieves   +2 more
wiley   +1 more source

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

open access: yesJournal 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   +11 more
wiley   +1 more source

UN ESTUDIO DE CASOS: CARACTERIZACIÓN DE LAS DEMANDAS FISIOLÓGICAS, CINEMÁTICAS Y NEUROMUSCULARES DE UN ÁRBITRO DE BALONMANO DURANTE LA COMPETICIÓN [A case study: characterization of physiological, cinematic and neuromuscular demands of handball referee during competition]

open access: yesE-balonmano.com: Revista de Ciencias del Deporte, 2018
El presente estudio pretende conocer y caracterizar las cargas de un árbitro de Balonmano durante la competición. La muestra se compone de dos árbitros que han participado en las finales infantil y cadete de la competición regional de la Federación ...
David García Santos   +4 more
doaj   +2 more sources

La tasa de variación del PIB en un modelo simple de determinación de la renta || The Variation of GDP in a Simple Model of Income Determination

open access: yesRevista de Métodos Cuantitativos para la Economía y la Empresa, 2017
En este artículo se demuestra que en un modelo simple de determinación de la renta, cuando se tienen en cuenta funciones de consumo lineales, la tasa de variación del producto interior bruto (PIB) es igual al cociente entre el incremento de la inversión ...
Escartin, Eduardo   +2 more
doaj  

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

open access: yes, 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
core  

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

open access: yesUltrasound 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   +6 more
wiley   +1 more source

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