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Influence of different types of baking powder on quality properties of muffins

Abstract: The leavening process of baked goods is essential to develop their quality properties. The aim of this study was to evaluate the effect of different types of baking powder on quality properties of muffins. The physicochemical properties of both the batter and

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Analysis and region-wise classification of work-related accidents in civil construction industry in Brazil

Abstract: Every year in Brazil, in the construction industry, several thousands of accidents at work occur, which have a strong social impact, and result in millions of dollars being spent on accident benefits. Based on this information, it becomes relevant to analyze

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Development of a remote management system for low power gensets, UPS and PV systems (under 200kW)

Abstract: The diversification of the energy matrix using non-conventional sources as well as reliability and safety regulatory requirements, demands cost-efficient management systems for commercial, residential or industrial generation under 200kW. There are several re

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Distribution of profiles and macroparticles in coatings obtained by continuous cathodic arc using a straight magnetic concentrator

Abstract: Thin films of Ti and Cu were deposited in 316 stainless steel substrates by using the continuous cathodic arc technique and a magnetic concentrator in a straight duct. Samples were obtained at different cathode-substrate distances for positions within the mag

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Effect of the partial replacement of wheat flour with turmeric flour (Curcuma longa) on the physicochemical and sensory properties of a common chorizo

Abstract: The effect of partial replacement of wheat flour with turmeric flour (Curcuma longa) on the physicochemical and sensory properties of chorizo made with pork was evaluated. Three levels of turmeric flour substitution were proposed 0.8%, 1.4% and 2.1%, correspo

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Preliminary study of drying of natural coffee by cyclical pressure changes

Abstract: A “special coffee” is obtained with an adequate drying process, which allows the preservation of volatile substances responsible for excellent cup quality. The aim was to carry out preliminary studies of drying of natural coffee by implementing a Cyclic Press

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Transmissibility of coffee fruit-peduncle-branch systems submitted to vibration induced by impact

Abstract: The development of efficient machines for coffee harvesting requires solid knowledge about the dynamic behavior of the plant. Vibration transmissibility is a parameter on dynamic behavior that may help understand this process. The aim of this study was to eva

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Design and validity of a questionnaire for measuring psychosocial risk factors and burnout

Abstract: In recent years, burnout has emerged as one of the most important work risks. Continuous chronical emotional and interpersonal stressors at the workplace can lead to burnout. Among those, psychosocial risk factors are things, events, or circumstances that may

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Biogenerated polymers: an enviromental alternative

Abstract: Bio-generated polymers are generally of great interest for Industry, due to the tendency of reducing the use of materials derived from oil. Nonetheless, its development costs are high and the benefit is still too low. Nowadays, in about ten percent of the pla

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Morphological and nutritional evaluation of ‘caraíba’ seedlings in different substrates using domestic sewage effluent for fertirrigation

Abstract: In this study, we evaluated the effects of fertigation with domestic sewage effluent and different substrates on the growth of Caraíba seedlings (Tabebuia aurea Benth). The experiment was accomplished in a greenhouse in Mossoró, RN. Five irrigation solutions

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Optimization of the replacement time for critical repairable components

Abstract: Equipment-intensive industries must manage critical components due to their impact on the availability and high inventory carrying costs. In this context, this study seeks to assess mean times between interventions (MTBI) and mean times between failures (MTBF

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Experimental modal analysis of an aircraft wing prototype for SAE Aerodesign Competition

Abstract: This work presents an experimental modal analysis of an aircraft wing prototype, designed by the Aerodesign team of the University of Brasilia, and performs a ground vibration testing of the prototype. The dynamic response data were acquired using the softwar

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Fed-batch production and characterization of polyhydroxybutyrate by Bacillus megaterium LVN01 from residual glycerol

Abstract: The operating conditions of polyhydroxybutyrate (PHB) production processes are among the factors that most influence yields. In this study, we evaluated PHB production synthesized by Bacillus megaterium LVN01. Batch and fed-batch cultures were used to produce

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Interference test interpretation in naturally fractured reservoirs

Abstract: The naturally fractured reservoir characterization is crucial because it can help to predict the flow pattern of fluids, and the storativity ratio of the fractures and to understand whether two or more wells have communication, among others. This paper presen

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Assessment of a container terminal expansion using simulation

Abstract: The paper presents a methodology to construct a Discrete Event Simulation model to assess the expansion of a container terminal. The methodology was applied to the Ensenada International Terminal located in Mexico. The simulation integrates all the operations

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Methane emissions from coal open pits in Colombia

Abstract: From the agreements on climate change Colombia is committed to measuring and reporting emissions of greenhouse gases (GHG), and among these, the coal mining fugitive emissions. The country has been reporting emissions from international tables-Level 1 of the

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Wear resistance and hardness of nanostructured hardfacing coatings

Abstract: Abrasive wear is an important problem in industrial applications. The wear of tools in the mining industry is a costly issue, and it reduces equipment uptime. This study examined welded coatings obtained using a manual metal arc process with improved wear res

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Structural component fatigue analysis of a hydrogenerator rotor

Abstract: This paper presents a fatigue life calculation for the pole, rotor rim, and rotor spoke of a 100 MW hydrogenerator. The mechanical and electrical parameters were measured during unit start, with the hydrogenerator working at several power levels, and during a

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Multivariate analysis for modeling yield variability to define management zones in a banana agroecosystem

Abstract: The delineation of management zones is based on the spatial behavior of a few soil variables selected and evaluated previously and usually not correlated in situ with yield. Since the soil-plant system is multivariate, the analysis of its complexity requires

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Enzymatic hydrolysis of wheat starch for glucose syrup production

Abstract: An analysis of the enzymatic hydrolysis of wheat starch was performed. Gelatinization stage was carried out between 90°C and 95°C for 15min. In Liquefaction stage, a commercial α-amylase was used with an enzyme-substrate ratio (E/S ratio) of 0.036% w/w at 60°

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Cutinases obtained from filamentous fungi: a comparison of screening methods

Abstract: Cutinases are secreted by filamentous fungi that and hydrolyze polymers. However, few selection methods for cutinases are available. Here, we studied three screening methods using 33 strains of filamentous fungi isolated from banana rachis with high potential

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Evaluation of the drying effect on some properties of chayote flour Sechium edule (Jacq.) Sw

Abstract: Alternative flours from plant sources, such as chayote, are options to reduce the use of wheat flour to produce food products. The objective of this research was to determine the effect of drying on some technological functional properties of chayote flour. T

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Optimizing manufactured sand content in mortars and its influence on fresh and hardened state

Abstract: The shape and roughness of aggregates play a predominant role in the properties of cement mixes. Due to that, some regulations limit the content of manufacture fine aggregate at 30% of the total of fine aggregate in concrete. However, few design methods consi

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Characterization of comprehensive drought events associated with the ENSO warm phase through satellite images in the Valle del Cauca, Colombia

Abstract: The Synthesized Drought Index in the Valle del Cauca was evaluated, applying Principal Component Analysis to satellite images that described: Land Surface Temperature, Normalized Difference Vegetation Index and Precipitation. The magnitude of drought represen

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Estimation of Safety Performance Functions (SPF) at signalized intersections in Medellín, Colombia

Abstract: One of the objectives of road infrastructure sustainability is to ensure that users are treated equally and their quality of life is improved by providing better mobility and traffic safety. When designing roads, it is important to evaluate different design c

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Nitrogen transformation stages into ammonia in broiler production: sources, deposition, transformation, and emission into the environment

Abstract: Air quality is a major factor in intensive livestock management because air is the main vehicle for the dissemination of physical, chemical, and biological agents that affect the health and welfare of animals and humans. Ammonia is the main gaseous pollutant

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MiSCi Middleware for smart cities extended with linked data

Abstract: This article proposes an extension of the capabilities of the MiSCi middleware, by adding a new layer called Linked Data, to identify, describe, connect, relate and exploit the various user-generated data and applications of the smart city using the Linked Da

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Evaluation of diafiltration process for concentration of the protein in the sweet whey from cheese factory

Abstract: The aim of this work was to study the diafiltration (DF) process to obtain a protein concentrate using sweet whey. For the evaluation of the process, ultrafiltration (UF) in diafiltration mode was used and two operating parameters were evaluated: volumetric r

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Mathematical model for the distribution network optimization of a courier and parcel company

Abstract: The distribution processes of the courier and parcel companies are complex due to the high number of customers, facilities and vehicles involved. This makes that network planning and resources allocation (infrastructure, people and vehicles) becomes a difficu

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Comparison of artificial intelligence and multivariate regression in modeling the flexural behavior of UHPFRC
Joaquín Abellán-García

Abstract: The study presented aims to model the flexural behavior of ultra-high-performance fiber reinforced concrete (UHPFRC), i.e. limit of proportionality (LOP), modulus of rupture (MOR) and theirs associated deflections δ MOR and δ LOP , using multivariable

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