Purpose The purpose of this paper is to improve disaster management models, have an optimal distribution of assets, reduce human suffering in a crisis and find a good solution for warehouse locations, distribution points, inventory levels and costs, considering the uncertainty of a wide range of variables, to serve as a support model for decision making in real situations. Design/methodology/approach A model is developed based on the recent models. It includes structured and non-structured data (historical knowledge) from a humanitarian perspective. This model considers the uncertainty in a landslide and flood area and it is applied in a representative Peruvian city. Findings The proposed model can be used to determine humanitarian aid supply and its distribution with uncertainty, regarding the affected population and its resilience. This model presents a different point of view from the efficiency of the logistics perspective, to identify the level of trust between all the stakeholders (public, private and academic). The finding provides a new insight in disaster management to cover the gap between applied research and human behavior in crisis. Research limitations/implications In this study the access of reliable information is limited. Practical implications This paper provides an operation model with uncertainty in a humanitarian crisis and a decision-making tool with some recommendation for further public policies. Originality/value This study presents a model for decision makers in a low-income zone and highlights the importance of preparedness in the humanitarian system. This paper expands the discussion of how the mathematical models and human behaviors interact with different perspectives in a humanitarian crisis.
ResumenNorteamérica y Sudamérica tienen un gran número de universidades, y de universidad a universidad existe una amplia variedad de funciones y misiones. Han transcurrido 18 años desde la Conferencia Mundial sobre la Educación Superior (Organización de las Naciones Unidas para la Educación, la Ciencia y la Cultura -Unesco, 1998). En esa conferencia, la Unesco analizó la situación de la educación superior y declaró la necesidad de los cambios que debían realizarse en el ámbito universitario del siglo xxi. Ejemplos de estos cambios incluyen las llamadas a un mejor acceso a la educación, a una mayor variedad de estilos de enseñanza, y más investigación e intercambio de hallazgos. El presente documento se enfoca en los detalles y realidades de estos cambios; también incluye el examen de cómo las universidades de Norteamérica (enfocado en Estados Unidos) y Sudamérica difieren en estas implementaciones. Palabras clave: educación universitaria / investigación en universidades Abstract A review of University Education in North and South AmericaNorth America and South America have a large number of universities, and each university has its owns functions and missions. It has been 18 years since the World Conference on Higher Education (United Nations Educational, Scientific and Cultural Organization -UNESCO, 1998). At that conference, UNESCO analyzed the situation of higher education and stated changes that needed to be made in the university sphere of the 21st century. Examples of these changes include calls for better access to education; a greater variety of teaching styles; and more research and exchange of researches' results. This document focuses on the details and realities of these changes. This publication also examines how universities in the North (focus in the United States) and South America differ in these implementations.
Evaluación experimental de un modelo de programación lineal INTERFASES Pág. 103 Ed. n.˚11 // Enero-diciembre 2018 // ISSN 1993-4912 Resumen Abstract Recibido: 27 de septiembre del 2018 Aceptado: 27 de octubre del 2018El presente artículo tiene como objetivo proponer un criterio cuantitativo para evaluar la viabilidad de implementar soluciones basadas en programación lineal para resolver el problema de ruteo de vehículos (VRP). Se utilizó un diseño experimental para medir el tiempo relativo de solución con un modelo de programación lineal propuesto. La muestra utilizada fue aleatoria utilizando tres escenarios de dispersión de puntos de entrega: poco dispersos, dispersos y muy dispersos. Se utilizó un solver de programación lineal con el objetivo de determinar el tiempo y las iteraciones necesarias para encontrar la solución del modelo. Como resultado se encontró el tiempo de solución en función de la cantidad de puntos de entrega, la cantidad de iteraciones para los escenarios propuestos y se pronostica el tiempo necesario para resolver el problema utilizando el modelo propuesto. Se concluye con una propuesta de cantidad de puntos viables para ser resueltos por programación lineal. Palabras clave: programación lineal, complejidad, ruteo, vehículos, puntos de entregaExperimental evaluation of a linear programming model for solving the vehicle routing problem (VRP)This article aims to propose a quantitative criterion to evaluate the feasibility of implementing solutions based on linear programming for solving the vehicle routing problem (VRP). An experimental design was used to measure the relative solution time with a proposed linear programming model. The sample was randomized employing three dispersion scenarios of the delivery points: poorly scattered, scattered and very scattered. A linear programming solver was used to determine the time and iterations necessary for solving the model. As a result, the solution time was found in terms of the number of delivery points and the number of iterations for the proposed scenarios, and the time required to solve the problem was predicted using the proposed model. The research concludes with a proposal of the number of viable points to be solved by linear programming.
RESUMEN: El alza del precio del petróleo en los últimos años ha generado que la ba lan za comercial peruana de combustibles líquidos derivados del petróleo influ ya en la economía nacional. Debido a las múltiples variables interrelaciona das, la di námica de sistemas y la simulación sirven como herramientas para la construcción de modelos que permiten el pronóstico de la balanza comercial. Palabras clave: balanza comercial / Perú / combustibles / dinámica de sistemas / simulación Trade balance projection for liquid fuels derived using system dynamics and simulation ABSTRACT: The increment in the crude oil's price in the recent years has provoked that the Peruvian balance of trade of liquefied fuels derived from the crude oil has impact on the national economy. Due to the multiple interrelated variables, the systems dynamic and the simulation are used as tools to build patterns that help to predict the trade balance.
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