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Pavimentos con placa-huella de concreto simple: Análisis con elementos finitos 3D
Armando Orobio Juan Carlos Orobio

Abstract: The construction of strip road pavements has increased in the r ecent days in Colombia. This type of pavements is being used fo r rural low- traffic volume roads, the type of strip road pavement used nati onwide is made of reinforced-concr ete, the constructi

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Detección y diagnóstico de fallas mediante técnicas de inteligencia artificial, un estado del arte

Abstract: This article presents the current state of artificial intellige nce techniques and their application to the field of fault dete ction and diagnosis, in dynamical systems. Initially, a brief description of what is considered a mechanism for fau lt detection

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A college degree recommendation model

Abstract: Selecting a profession suitable to students` expectations implies taking into account multiple factors. Despite its usefulnes s and high impact, there are shortcomings in current university major recommendation models. Among these limitations are the lack o

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Evaluación de la gestión financiera usando variables latentes en modelos estocásticos de fronteras eficientes

Abstract: It is impossible to ascertain the quality of business Management through traditional financial indicators; these alone do not accurately infer about business states in such important aspects as the efficiency of business management. The concep

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Análisis del potencial metanogénico y energético de las aguas residuales de una planta de sacrificio bovino mediante digestión anaeróbica

Resumen: El potencial de biometanización para las aguas residuales de un a planta de sacrificio bovino fue determinado para las temperat uras de operación de 37°C y 30°C con estiércol bovino pre incubado como fuente de inóculo. Los rendimientos de metano alcanzados

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Reduction of computational times using the equivalent rectangle concept in the physics-based surface – subsurface models

Abstract: The interaction between surface a nd subsurface domains in a bas in can be studied using a physics-based model; however, the cal ibration and validation processes requir e a high computational effort du e to their complex geometry. The authors propose an alt

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Automated detection of photoreceptors in in-vivo retinal images

Abstract: The inclusion of adaptive optics (AO) into ophthalmic imaging technology has allowed the study of histological elements of re tina in-vivo , such as photoreceptors, retinal pigment epithelium (RPE) cells, retinal nerve fiber layer and ganglion c

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Effect of amplitude and pulse in low frequency ultrasound on oil/water emulsions

Abstract: The application of ultrasound with in advanced or emerging technologies requires selecting parameters that depend on the target application. This study evaluated pulse and amplitude parameters of oil/water emulsions (20:80% w/w) using

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An adaptive controller applied to an anti–lock braking system laboratory

Abstract: Controlling an antilock braking system is difficult due to the existence of nonlinear dynamics and the uncertainty of its char acteristics and parameters. To overcome these issues, we propose two controller s. The first controller is designed under the comp

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Modeling attenuation and dispersion of acoustic waves in porousmedia containing immiscible non viscous fluids

Abstract: This paper reports the results of the propagation of P-waves in porous media, simulated by solving the generalized Biot ́s equa tions in finite differences. In saturated models , it was observed that when a w ave advances, the maximum amplitude of the spect

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Influence of the mixing ratio on the anaerobic co-digestion of municipal biowaste with domestic wastewater sludge on methane production

Abstract: Anaerobic co -digestion (A -Co) is a viable option to overcome the disadvantages of mono -digestion. This research presents the results of biochemical methane potential assays (BMPs) assessing the A -Co of municipal biowastes (MBW) from o

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Characterization of construction and demolition waste in order to obtain Ca and Si using a citric acid treatment

Abstract: The paper analyses residual conc rete (CW) degradation by organi c acids and their potential use as nutrient source for degraded soils. The aims of the research were to carry out a chemical and mineralogical charact erization of CW and to evaluate the disso

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Technical and economic study of striking and clearing operations in buildings under construction. Case study in Bogotá, Colombia

Abstract: This paper evaluates the economic benefits of shorter construction times tha t can be attained by applying the New Simplified Procedure (NSP) in multi -storey buildings. The reference building was a multi -storey residential reinforced concrete framework

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Comportamiento magnético y estructural del sistema. La 1.5−x Ba 1.5+x−y Ca y Cu 3 O z 0.2 ≤ x ≤ 0.4 y 0.3≤ y ≤0.5

Abstract: In this paper we analyzed the La 1.5+x Ba 1.5+x -y Ca y Cu 3 O z system, based on the production of samples that are in the range of single phase, pure phase, proposed by West [1]. We report the production and cha racterization La 1.1

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Procedimiento para el análisis energético de sistemas de bombeo centrífugos

Abstract: The renewed interest in the efficient use of energy, has made the use of speed control by frequency variation for flow control in pumping systems, has now become the most attractive option for this purpose, the which makes it necessary to ob

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Estudio del movimiento superficial de un suelo multi-capas poco profundo sometido a ondas P

Abstract: In this work it was designed and implemented an experimental setup to study the surface acceleration of a multilayered soil a nd the experimental measurements were cont rasted with a one -dimensional theoretical model based on ray traci

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Uplift force and momenta on a slab subjected to hydraulic jump
Mauricio González-Betancourt

Abstract: As part of the search for safe and economic design criterion to line slabs of stilling basins, the present study is one of th e first to calc ulate the center of pressure, uplift forces, and momenta from a spatiotemporal analysis of the pressures measured ab

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The behavior of a foundation transversally loaded at the top over highly porous and collapsible soil

Abstract: In geotechnical engineering, the use of caisson foundations transversally loaded at the top is common. This type of foundation is frequently used on high-porosity and collapsible soils, which are common in many regions in Brazil. Be cause of the limited info

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El enfoque sistémico como herramienta de análisis de un artefacto electrónico, caso de estudio: “IPod Nano de séptima generación”

Abstract: This article shows how the systemic approach, being a design tool for new products, can analyze objects in terms of its form, its function and ergonomics, while understan ding the different elements of the product which become integrators design factors. An

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Caracterización del proceso de diseño de productos de una empresa prestadora de servicios de diseño. Propuesta basada en un enfoque de procesos

Abstract: This paper presents the product design process of a company tha t provides design services, fro m a process approach expressed i n a process map. The study proposes a complementary look to current theoret ical models representing the design process, which ad

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Antena de parche con sentido de giro reconfigurable para aplicaciones en satélites CubeSat

Abstract: A shorted annular ring (SAR) antenna design with circular polar ization and reconfigurable sens e of rotation improving the axia l ratio by means of a 90° hybrid coupler is presented in this paper. The whole structure dimensions are 7 6mm x 76mm x 3mm, the

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RWA: Optical Networks with Heuristics Algorithms

Abstract: The increase in demand for data transport through WDM (Waveleng th Division Multiplexing) networks has led to the emerging prob lems related to finding routes and ass igning wavelengths in these ne tworks, which are solved through algorithmic processes. Co

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Un enfoque de polinomio de expansión de caos al análisis de la incerteza en elementos estructurales visco elásticos

Abstract: The uncertainty propagation in mechanical systems through model calculations was analyzed in this article by stochastic polyno mial series of standardized random variables called Polynomial Chaos Expans ion. This paper aimed to simulat e the propagation of

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Desarrollo, construcción y pruebas de una cocina-calentador de bajo costo y alta eficiencia energética para biomasas de reducido poder calorífico

Abstract: According to World Health Organization [1], 3000000 million peo ple cook and heat their houses with open fires and stoves that burn biomass and charcoal, most of them placed in cool climates with very limited vegetal biodiversity and consequently meager en

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Determinación numérica de la solubilidad de la vitamina C en diferentes solventes, para la extracción selectiva o para la incorporación en formulaciones orientadas al cuidado, bienestar y salud de la piel
Carlos Esteban Aristizábal-Alzate

Abstract: Vitamin C has excellent antioxidant properties and its use in t opical formulations brings many benefits to the skin. For these reasons and the strong global trend to develop natural products base, the i ndustry uses fruit pulps rich in this component for t

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Gully erosion, land uses, water and soil dynamics: A case study of Nazareno (Minas Gerais, Brazil)

Abstract: Gully erosion is a critical issue worldwide. To correctly under stand the association that the environmental data (such as clim ate, vegetation cover, etc.) has with soil erosion susceptibility and land uses remain s a challenge in land management. This pape

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Dual arm compressive spectral imaging in the visible and IR range

Abstract: Imaging spectroscopy involves sensing spatial information in a scene across a range of wavelengths in order to acquire a three -dimensional data cube. Spectral images play an important role in science an d technology. Some of their applications require imag

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El índice de emisiones como parámetro para evaluar la contaminación ambiental de las Centrales Térmicas. Estudio de caso

Abstract: In power plants, in addition to electricity, a lot of air pollu tion by exhaust gases are generated. There are many national an d international standards that establish the permissible limits of different su bstances, but still has not been developed a mathe

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Gaussian clarification based on sign function

Abstract: This paper presents a clarification model in the fuzzy sense ba sed on the Membership Inverse Function (MIF), in Control Theory . It is considered as an identification and requires bounded input and output signals. The sign function and its derivative is re

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Propiedades reológicas de nanotubos de carbono como aditivo en un fluido lubricante

Abstract: The rheological properties of polya lphaolefin lubricant oil wit h the addition of multi-walled and single-walled carbon nanotub es were studied. The rheological tests were performed by varying the vi scosity as a function of temperature, load and shear rate

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Criterios de Evaluación
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Criterios Altamente Valorados / Criterios Deseables Criterios Cualitativos
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