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Fault and load flows analysis of electricity transmission and distribution system in Casanare (Colombia)

Abstract: This article describes a simulation of the electrical local distribution and regional transmission system of Enerca S.A. E.S.P. at 34.5 kV and 115 kV, identifying the most critical circuits and substations. The company is located in one of the major petroleum

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Supply chain optimization with variable demand by considering financial criteria and scenarios
John Willmer Escobar

Abstract: This paper contemplates the supply chain design problem of a large-scale company by considering the maximization of the Net Present Value. In particular, the variability of the demand for each type of product at each customer zone has been estimated. As start

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Use of thermal mater as a natural coagulant for domestic wastewater sustainable treatment

Abstract: In the last several years, the interest on domestic wastewater treatment has increased due to the rise of water consumption resulted from the world population growth. The excessive use of inorganic coagulants, such as aluminum sulphate, in domestic wastewater

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Detection of lies by Facial thermal imagery analysis

Abstract: An artificial vision system is presented for lie detection by analyzing face thermal image sequences. This system represents an alternative technique to the polygraph. Some of its features are: 1) it has no physical contact with the examinee, 2) it is non-int

en es pt

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Characterization of copper smelter slag and recovery of residual metals from these residues

Abstract: The pyrometallurgical copper extraction process generates 2.2 t of residues for each ton of produced metal. Initially, this paper shows the physical and chemical characterization of a copper processing residue, followed by the procedure to obtain the gold and

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Warehousing and transportation logistics of mango in Colombia: A system dynamics model

Abstract: This paper evaluates the incidence of packing asymmetries, resulted from the use of heterogeneous packaging materials by different mango supply chain actors in Colombia, on performance measures of inventory, transportation, and quality. A system dynamics mode

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Traffic model for the interconnection of networks and operators using MPLS-TE

Abstract: In this paper, the main features of MPLS Traffic Engineering are presented to illustrate how telecommunication service providers use them to create interconnections between each other in order to offer telecom services satisfying QoS commitments. Based on pre

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Computational simulation of concentration by osmotic evaporation of passion fruit juice (Passiflora edullis)

Abstract: This study aimed at implementing a comprehensive strategy for the multiphysics simulation of the osmotic evaporation process applied in the concentration of passion fruit juice. The phenomena of mass and momentum transfer were analyzed in Comsol® and Matlab®,

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A memetic algorithm for minimizing the makespan in the Job Shop Scheduling problem

Abstract: The Job Shop Scheduling Problem (JSP) is a combinatorial optimization problem cataloged as type NP-Hard. To solve this problem, several heuristics and metaheuristics have been used. In order to minimize the makespan, we propose a Memetic Algorithm (MA), which

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Spin Coating technique for obtaining nanometric thin films in the system La0.7Sr0.3MnO3

Abstract: Manganite in the La0.7Sr0.3MnO3 system is of great interest due to its potential application in fuel cells, information storage, magnetic field sensors, non-volatile memories, oxygen sensors, and catalysts in the oxidation of light hydrocarbons. Given the sci

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Synthetic fuel production from shredded scrap waste

Abstract: This technological innovation project involved material identification, and design, installation, implementation, and evaluation of a pilot plant with capacity of 10 t per batch to recover materials and produce synthetic fuels (oil, syngas and solid) from shr

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A software pilot application to calculate the parameters involved in subsidiaries interconnection based on FSO technology

Abstract: Free Space Optics (FSO) technology transmits information using free space optical signals similar to those that travel through optical fibers. The capacity of FSO to connect buildings close together is covered in this paper. Four optical wireless links betwee

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Best practices of interoperability among heterogeneous software systems: a Semat-based representation

Abstract: Interoperability among heterogeneous software systems is a software quality sub-characteristic. Some methods for dealing with interoperability exhibit differences in aspects like generality, development method, and work products, among others. However, some a

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Assessing the behavior of machine learning methods to predict the activity of antimicrobial peptides

Abstract: This study demonstrates the importance of obtaining statistically stable results when using machine learning methods to predict the activity of antimicrobial peptides, due to the cost and complexity of the chemical processes involved in cases where datasets a

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