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Conceptual design and structural analysis of ground support equipment for handling and maintenance of Turboshaft engines

Abstract: This paper describes the application of computational modeling and computer-aided design (CAD) for the conceptual design and structural analysis of the maintenance process of Klimov TV3-117 engines at an approved Maintenance, Repair and Overhaul (MRO) facilit

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Study on alumina ball size distribution in white cement grinding

Abstract: This paper presents the results of the characterization of alumina ball size distribution in the mill of a crushing and grinding plant. The mill was unloaded and the balls were sieved. Then, the results were adjusted to three kinds of models; two of them are

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Influence of porosity on the biomimetic growing patterns of bone-like apatite on the surface of calcium phosphate - calcium titanate - alumina compounds

Abstract: Biomaterials are increasingly used for bone tissue regeneration because of their potential to overcome the morbidity caused by autologous bone grafts and allografts. A combination of properties is required, as biocompatibility, osteoconductivity, good mechani

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Behavior of pigs subjected to climate control system in the Semi-arid Region of Pernambuco, Brazil

Abstract: The objective was to thermally characterize the facilities during the growth and finishing phases of pigs and to evaluate the influence of climate control systems on the expression of the behaviors of pigs. The experiment was conducted at the Federal Rural Un

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The epistemological obstacle in Electromagnetism
Horacio Torres-Sánchez

Abstract: In the development of a historical analysis on the natural phenomenon of electromagnetism, recurrently a question appears on the subject: why does it take researchers about 2300 years to decipher, understand and then dominate and apply the electromagnetic phe

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Energy & thermal comfort performance for a single-family residence located in Foz do Iguaçu, climatic zone 3A-Brazil

Abstract: Energy performance and thermal comfort through EnergyPlus®, for a prototype of a single-family residence located in Foz do Iguaçu, climate zone 3A-Brazil. Using the estimated thermal sensation inside the house, natural ventilation was analyzed, where a system

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Product development process of a digital irrigameter: a water sizing proposal for sprinkler irrigation process in different cultures

Abstract: This paper aimed to propose the development of a digital irrigameter, in order to assist in water sizing, to be used in the sprinkler irrigation process, in different cultures. From the realization of a market research, it was verified the existence of a gap

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Influence of fractional distillation on the yield and quality of biofuels obtained through thermal catalytic cracking of crude palm oil

Abstract: This paper investigates the influence of the fractional distillation on the yield and quality of biofuels obtained in a laboratory unit (Vigreux column) at atmospheric pressure, producing three distilled fractions: (1) green gasoline, (2) green aviation keros

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On the resource consumption of Software quantum computing simulators

Abstract: Recently, several real quantum devices have become available through the cloud. Nevertheless, they are expected to be very limited, in the near term, in the number and quality of the fundamental storage element, the qubit. Therefore, software quantum simulato

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Design of a scheelite production pilot plant for the treatment of spent electroless nickel plating solutions in Field Service Solution S.A.S.: an alternative source for tungsten recycling

Abstract: In this contribution, the design considerations to assemble a pilot-plant for tungsten recovery and further conversion into synthetic scheelite as raw material, as an eco-friendly improvement for the current electroless nickel process in Field Service Solutio

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Application of NTC-ISO 14064 standard to calculate the Greenhouse Gas emissions and Carbon Footprint of ITM’s Robledo campus

Abstract: The aim of this study is to calculate the Carbon Footprint (CF) of one campus of the Instituto Tecnológico Metropolitano (ITM), a higher education institution in Medellín, Colombia. Such calculation was conducted from the perspective of Life Cycle Assessment

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Synthesis, structural characterization and functional properties of Sr0.5Ba0.5Nb2−xFexO6 ceramic powders

Abstract: Sr0.5Ba0.5Nb2-xFexO6 (SBNF) ceramic powders for x=0.00, x=0.02 and x=0.03 were synthesized using coprecipitation method. The structure of the SBNF single phase with x=0.02 was identified by X-ray diffraction and Rietveld refinement; the morphology and size of

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Industry 4.0 Readiness: a new framework for maturity evaluation based on a bibliometric study of scientific articles from 2001 to 2020

Abstract: This article presents the scientific production over the last two decades concerning the terms Industry 4.0 and Maturity and introduces a conceptual framework for maturity evaluation based on the concept of industry 4.0 readiness. A bibliometric study based o

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Modification of the particle swarm optimization method through the intervention technique and its application for antenna design
Andry Contreras Josimar Tello-Maita

Abstract: In this research, a modification of the particle swarm optimization method was proposed, which is based on an intervention technique for the design of antennas. The proposed method was tested through its application on typical benchmark functions. Moreover, i

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Effects of pretreatment and leaching medium on the extraction efficiency of Au and Ag from a chalcopyrite leaching by-product

Abstract: Precious metals such as gold (Au) and silver (Ag) are essential to our modern society due to their unique properties, such as high conductivity and physical and chemical resistance. They are often concentrated in by-products during the extraction of base meta

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Flue gas and nitrogen co-injection during cyclic steam stimulation in heavy oil reservoirs: a numerical evaluation

Abstract: In this study, steam co-injection with flue gas or N2 was numerically reproduced to determine the best gas composition to be deployed in a Colombian heavy crude oil, using a commercial reservoir simulation software. The oil mixture was characterized via EoS p

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Adjusting the water retention curve for retractable soils

Abstract: The soil water retention curve (SWRC) relates moisture to soil water retention energy (matrix potential). The calculation of the volumetric humidity considers the sample volume. In retractable soils, this volume varies according to the drying or wetting of th

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Biodegradability of a bioplastic film from tamarind xyloglucan in composting bioreactors

Abstract: Plastic is used excessively due to its excellent properties and its low cost. This has led to the ubiquitous accumulation of waste as it takes a very long time to biodegrade. Until now, several research projects have developed different biodegradable plastics

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A stopwatch time study for an underground mining extraction

Abstract: This study seeks to increase the understanding of stopwatch time studies by determining standard cycle times for an underground mining extraction process, implementing the technique in a polymetallic mining deposit of intermediate to low sulphidation of silve

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Design, implementation, and testing of an energy consumption management system applied in Internet protocol data networks

Abstract: To model the power measurement conditions of an energy system, an initial reference should be made within the specification of a generic energy consumption (EC) model. This EC model is based on the energy state of a system comprising goods, networks, and serv

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Alkaline delignification of lignocellulosic biomass for the production of fermentable sugar syrups

Abstract: The objective of this study to analyze the effect of alkaline pretreatment on the structure, composition, and subsequent hydrolysis of agricultural wastes. An increase in the content of reducing sugars after the pretreatment is achieved. Its effectiveness is

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Characterization of alluvial soil hydrodynamics in the upper Ipanema river basin using the Beerkan method

Abstract: The objective was to model the spatial distribution of the physical properties of the soil through geostatistics in the Brazilian semi-arid region. The study was carried out in the Experimental Basin of Ipanema River, Pernambuco, in an alluvial area with regu

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Design and validation of a prototype to calibrate the pressure variable in tonometry

Abstract: This paper corresponds to the results of an experimental research that to led to the design of a useful prototype for quality control of measurements in the field of tonometry to diagnose and check glaucoma. All tonometry techniques are based on Goldmann´s to

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Numerical assessment of dissipation energy capacity in perforated plate steel dampers

Abstract: The use of perforated metallic shear dampers in buildings has been an adequate strategy for reducing the magnitude of damages caused by earthquakes on primary elements. Furthermore, the amount of energy dissipated by the shear dampers is in turn affected by t

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Frequency-based methods for the detection of damage in structures: A chronological review

Abstract: Infrastructure development is a common feature of emerging countries. As a result, the design and construction of complex structures susceptible to damage is becoming increasingly common. Over the years, multiple advances in Structural Health Monitoring (SHM)

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Plant electrophysiology: bibliometric analysis, methods and applications in the monitoring of plant-environment interactions

Abstract: Plants have mechanisms to perceive and transmit information between their organs and tissues to respond quickly to abiotic and biotic external stimuli from the environment, producing different electrical potential types. It is reported on the generation and c

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In vitro evaluation the toxicity in mixture of glyphosate and methyl metsulfuron against strains of Trichoderma spp

Abstract: Trichoderma is an antagonist fungus used in agriculture and forestry for the diseases control. The use of the herbicides metsulfuton methyl and glyphosate is a common practice for weed control that limits Trichoderma use. This study has evaluated the toxic ef

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Evaluation of a surfactant of natural origin as a dispersant in oil spills in seas

Abstract: Among the different agents for controlling oil spills in seas, natural dispersant formulations are presented as a sustainable alternative to conventional chemical dispersants. This study analyzes the efficiency of a surfactant mixture of vegetable origin with

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Framework para el monitoreo de la temperatura de cultivos acuícolas basado en IoT

Resumen: Una de las preocupaciones actuales en la acuicultura es la gestión del ambiente del cultivo debido al impacto que este genera, en el cultivo a nivel de producción, al ambiente por residuos no controlados y en la seguridad alimentaria, dicha preocupación va en

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Diagnosis of the life’s quality of the Zonal Planning Units (UPZ) 35 and 36 of the city of Bogotá, taking into account the impact of electrical substations based on the quantification of the carbon footprint

Abstract: Multiple phases are involved in the production process of energy generation. The transmission and distribution are the closest phases to the urban population, specifically with the electrical substations and distribution lines. This type of conventional energ

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Criterios de Evaluación
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Criterios Altamente Valorados / Criterios Deseables Criterios Cualitativos
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Criterios Altamente Valorados Cuantitativos
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