cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11350865
title: Guidelines for defining assembly batches of engineer-to-order concrete prefabricated systems

description: Abstract The potential benefits of engineer-to-order (ETO) prefabricated building systems include reductions in project cost and duration, and improvements in product quality. However, the scope of production planning and control systems in that context must be different from traditional projects, since it is necessary to coordinate different types of flows (design, manufacturing, logistics operations and site assembly). In this context, it is necessary to stabilise those flows and consequently reduce work in progress, which is strongly related to the effort of reducing production batch size. The aim of this research work is to propose a set of guidelines for the definition of assembly batches for ETO prefabricated concrete system, with the support of 4D BIM, based on concepts and principles of the lean production philosophy. Design Science Research was the methodological approach adopted in this investigation, which was based on an empirical study carried out in an airport expansion project. The main contributions of this study are a set of decision categories for the definition of assembly batches, and the development of tools for supporting decision-making in this context.
DOI: 10.6084/m9.figshare.11350880.v1
title: A HISTORICAL AND CONCEPTUAL OVERVIEW OF INTERDISCIPLINARY RESEARCH: AN ANALYSIS OF INTERDISCIPLINARY GRADUATE COURSES

description: ABSTRACT: This paper aims at tracing a brief historical reconstruction of interdisciplinary research in Brazil and its importance for the construction of knowledge. To this end, it adopts as a bibliographic and documentary research as methodological procedure, in order to understand interdisciplinary research in Brazil. Despite the article locus is Brazil, it is important to organize interdisciplinary knowledge worldwide in order to understand its trajectory in the country. The results indicate the main factors that hinder interdisciplinary research, as well as a way to guide actions that can mitigate such barriers and promote possibilities for advancement in the area because of an increasingly complex society.
DOI: 10.6084/m9.figshare.11350865.v1
title: Guidelines for defining assembly batches of engineer-to-order concrete prefabricated systems

description: Abstract The potential benefits of engineer-to-order (ETO) prefabricated building systems include reductions in project cost and duration, and improvements in product quality. However, the scope of production planning and control systems in that context must be different from traditional projects, since it is necessary to coordinate different types of flows (design, manufacturing, logistics operations and site assembly). In this context, it is necessary to stabilise those flows and consequently reduce work in progress, which is strongly related to the effort of reducing production batch size. The aim of this research work is to propose a set of guidelines for the definition of assembly batches for ETO prefabricated concrete system, with the support of 4D BIM, based on concepts and principles of the lean production philosophy. Design Science Research was the methodological approach adopted in this investigation, which was based on an empirical study carried out in an airport expansion project. The main contributions of this study are a set of decision categories for the definition of assembly batches, and the development of tools for supporting decision-making in this context.
DOI: 10.6084/m9.figshare.11350868.v1
title: Drying and colour characteristics of Cleome gynandra L. (spider plant) leaves

description: Abstract Drying characteristics of Cleome leaves in an oven dryer was studied. The impact of oven drying temperature (50, 60 and 70 °C) on moisture composition of the plant at a uniform air speed was considered. Eight drying models, namely, simple exponential, Page, Verma, modified Henderson and Pabis, Lewis, two term exponential, Newton, logarithmic, and Wang and Singh were fitted to drying data. Modified Henderson and Pabis model satisfactorily depicts the drying behaviour of Cleome leaves. Effective moisture diffusivity of Cleome ranged from 1.03 × 10−6 to 1.77 × 10−5 m2/s. Reliance of the calculated effective diffusivity on oven temperature was unavoidable. The required activation energy for oven drying of Cleome leaves was found to be 24.46 kJ/mol. The colour characteristics of Cleome leaves in terms of L*, a* and b* were determined. Based on the colour characteristics results, drying condition of 70 °C 90 min was found to be optimum for oven drying of Cleome leaves.
DOI: 10.6084/m9.figshare.11350871.v1
title: Morphology, Crystalline Structure and Chemical Composition Of MAO Treated Ti-15Zr-Mo Surfaces Enriched with Bioactive Ions

description: In this study, MAO treatment was used to enrich, with bioactive Ca, Mg and P atoms, as-casted and heat-treated Ti-15Zr-xMo (x = 0, 5, 10 and 15 wt%) alloys, for potential use as advanced metallic biomaterials. The chemical composition of the surface was evaluated by EDS and XPS measurements. The morphology and microstructure was analyzed by OM and SEM images. Crystalline structure and phase composition were characterized by XRD measurements. The results indicated that the oxide layers were porous, with microstructural features of the bulk (grain size and secondary phases) slightly affecting the surface characteristics (pore size, chemical and phase composition). The crystalline structure of the oxide layers were composed by a mixture of anatase and rutile phases (TiO2), with a minority of tetragonal zirconia (ZrO2) and traces of CaCO3 and P2O3 compounds. Chemical analysis indicated that the oxide layers were composed mainly by Ti and Zr oxides, with successful incorporation of the bioactive elements. The obtained results evidenced that the surface characteristics of MAO-treated Ti surfaces can be properly adjusted by the addition of alloying elements and implementation of specific heat treatments on the substrate. This finding can be quite useful for the development of novel biomedical implants.
DOI: 10.6084/m9.figshare.11350853
title: Lookahead planning: overview of its application in construction

description: Abstract Medium-term planning (MTP) is one of the hierarchical levels of the Last Planner System of production control, and constitutes an essential step to assure that plans defined at the long-term planning level will materialise at the operational level in construction projects. This paper describes a systematic literature review, whose objective is to identify the main practices associated with MTP, the main failures related to its implementation, and existing gaps on this topic. The results point to a plethora of practices associated with MTP, which can be considered in future studies, and also be incorporated in the production planning and control process used by construction companies. However, in general terms, the results of this study show that MTP practices are not being properly implemented. Additionally, the study identified gaps in the literature regarding the impact of MTP on project performance and the use of building information modeling (BIM) to support MTP functions. Hence, this topic merits additional research to improve the efficacy of MTP in construction projects, considering that it represents an essential step to remove project constraints and, consequently, to achieve a continuous flow of activities during the life of a project.
DOI: 10.6084/m9.figshare.11350847
title: BIM Execution Plan: Proposal of guidelines for contractors and designers

description: Abstract Building Information Modeling (BIM) implementation is widely discussed in academy and construction industry and requires changes in relationship processes between project contractors and their suppliers to ensure that BIM models are efficient and applicable throughout the life cycle of the building. Contractors and contracted parties report a lack of a document that for all stages of BIM project development defines their scope and responsibilities. In this regard, this article proposes guidelines for a BIM Execution Plan (PEB) development for construction projects contracts aiming to guide relationship between process stakeholders - especially those from Santa Catarina (state in the southern region of Brazil) - within BIM model production process that meet the needs of designers and contractors. From a systematic review of literature and BIM adoption analysis in the companies studied - through questionnaires, interviews and process flow mapping - it was developed the PEB content guidelines and suggested a flow to implement the proposed PEB for a project. Validation was done through interviews with industry experts.
DOI: 10.6084/m9.figshare.11350853.v1
title: Lookahead planning: overview of its application in construction

description: Abstract Medium-term planning (MTP) is one of the hierarchical levels of the Last Planner System of production control, and constitutes an essential step to assure that plans defined at the long-term planning level will materialise at the operational level in construction projects. This paper describes a systematic literature review, whose objective is to identify the main practices associated with MTP, the main failures related to its implementation, and existing gaps on this topic. The results point to a plethora of practices associated with MTP, which can be considered in future studies, and also be incorporated in the production planning and control process used by construction companies. However, in general terms, the results of this study show that MTP practices are not being properly implemented. Additionally, the study identified gaps in the literature regarding the impact of MTP on project performance and the use of building information modeling (BIM) to support MTP functions. Hence, this topic merits additional research to improve the efficacy of MTP in construction projects, considering that it represents an essential step to remove project constraints and, consequently, to achieve a continuous flow of activities during the life of a project.
DOI: 10.6084/m9.figshare.11350841
title: Models for estimation of mechanical properties of compressive and tensile strength in the parallel direction to the grains

description: Abstract The mechanical strengths of wood are calculated, for safety reasons, based on their characteristic value. The Brazilian standard for timber structures establishes relationships to estimative the characteristic strength together with three forms of wood characterisation, with emphasis on the simplified procedure that allows, for usual species, obtaining the characteristic values through equations that correlate different mechanical properties. Considering the results of strengths (ƒc0; ƒt0) and of the modulus of elasticity (Ec0; Et0) on the compressive and tensile parallel to the grains of 40 hardwood species (960 experimental determinations with ≈ 12% moisture content), the precision of the relations ƒc0,k = 0,77 ∙ ƒt0,k and Ec0 = Et0 proposed by the standard were evaluated based on the analysis of variance (ANOVA). Besides the objective of evaluating such equations, linear, exponential, logarithmic and geometric regression models were adopted as an alternative proposal in the estimation of such properties. The statistical analyzes validated the equations proposed by the Brazilian standard, and the geometric equation, proposed in this work, proved to be the best fit model.
DOI: 10.6084/m9.figshare.11350844
title: SIMULTANEOUS LIPID AND CAROTENOID PRODUCTION BY STEPWISE FED-BATCH CULTIVATION OF Rhodotorula mucilaginosa WITH CRUDE GLYCEROL

description: Abstract In the present study, an innovative cultivation strategy of Rhodotorula mucilaginosa CCT 7688 to accumulate both lipids and high added value carotenoids was proposed, with the potential to contribute to the economic feasibility of microbial oils in comparison with vegetable oils. The stepwise fed-batch cultivation with crude glycerol feeding at 24 h, 96 h, and 144 h, with the addition of magnesium to the initial culture medium, resulted in a lipid content of 51.0 ± 0.3 % CDW, biomass concentration of 21.00 ± 0.48 g L-1, total lipid production of 10.72 ± 0.18 g L-1, lipid productivity of 0.037 ± 0.001 g L-1 h-1, volumetric carotenoid production of 2843.2 ± 282.0 μg L-1, and carotenoid productivity of 9.87 ± 0.98 μg L-1 h-1. These values represent a 6-fold increase in lipid content, a 19-fold increase in lipid production, and a 2-fold increase in carotenoid production compared to batch cultivation.
DOI: 10.6084/m9.figshare.11350847.v1
title: BIM Execution Plan: Proposal of guidelines for contractors and designers

description: Abstract Building Information Modeling (BIM) implementation is widely discussed in academy and construction industry and requires changes in relationship processes between project contractors and their suppliers to ensure that BIM models are efficient and applicable throughout the life cycle of the building. Contractors and contracted parties report a lack of a document that for all stages of BIM project development defines their scope and responsibilities. In this regard, this article proposes guidelines for a BIM Execution Plan (PEB) development for construction projects contracts aiming to guide relationship between process stakeholders - especially those from Santa Catarina (state in the southern region of Brazil) - within BIM model production process that meet the needs of designers and contractors. From a systematic review of literature and BIM adoption analysis in the companies studied - through questionnaires, interviews and process flow mapping - it was developed the PEB content guidelines and suggested a flow to implement the proposed PEB for a project. Validation was done through interviews with industry experts.
DOI: 10.6084/m9.figshare.11350832
title: K-NEAREST NEIGHBORS METHOD FOR PREDICTION OF FUEL CONSUMPTION IN TRACTOR-CHISEL PLOW SYSTEMS

description: ABSTRACT Most important farm operations require a significant amount of energy, and this consumes a major portion of the farm's budget. Consequently, analyzing the fuel consumption of agricultural machinery for farm operations of different sizes makes it possible to predict fuel consumption to set an appropriate budget for energy. The main purpose of this study was to determine the ability of the k-nearest neighbors (KNN) algorithm to predict the fuel consumption of tractor–chisel plow systems correctly. A training-set design of 139 points of 173 data points obtained from the literature was utilized, and the remaining 34 data points were applied as a test set. The input parameters were tractor power, plowing width, depth and speed of plowing, soil percentages of sand, silt, and clay, initial soil moisture content, and initial soil bulk density. The predictive power of the KNN method was compared with that of multiple linear regression (MLR), and experimental data were used to determine the predictive power of both methods. The KNN method generated better results than the multiple linear regression method. The test dataset correlation coefficients were 0.817 for the KNN (k = 2) method and 0.422 for the multiple linear regression method. This study suggests that the KNN method with k = 2 (two nearest neighbors) is suitable for estimating the fuel consumption of tractor–chisel plow systems for input values within the studied range.
DOI: 10.6084/m9.figshare.11350835
title: SYNTHESIS, CHARACTERIZATION AND EVALUATION OF THE HETEROGENEOUS BASIC CATALYST DAPTS-MCM-41 IN THE INTERESTERIFICATION REACTION OF PALM OIL AND PALM KERNEL OIL BLENDS

description: Abstract In recent years, the replacement of homogeneous catalysts by heterogeneous catalysts has been investigated as a sustainable alternative technology to obtain different products. In this context, this study investigated the activity of the heterogeneous catalyst DAPTS-MCM-41, obtained from the reaction between the MCM-41 molecular sieve and an organic base 3-ethylenediamine (trimethoxy) propyl silane (DAPTS) in the interesterification reaction of palm oil and palm kernel oil blends. The catalyst was characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD) and textural analysis (ASAP). The interesterified blends were evaluated by fatty acid profiles (FAME) and solid fat content (SFC). The significant changes observed in the solid fat contents of the blends before and after interesterification led to changes in physical properties due the random distribution of acyl groups on glycerol positions. No undesirable reactions such as degradation and trans isomer formation occurred since the fatty acid composition of the blends remained constant.
DOI: 10.6084/m9.figshare.11350841.v1
title: Models for estimation of mechanical properties of compressive and tensile strength in the parallel direction to the grains

description: Abstract The mechanical strengths of wood are calculated, for safety reasons, based on their characteristic value. The Brazilian standard for timber structures establishes relationships to estimative the characteristic strength together with three forms of wood characterisation, with emphasis on the simplified procedure that allows, for usual species, obtaining the characteristic values through equations that correlate different mechanical properties. Considering the results of strengths (ƒc0; ƒt0) and of the modulus of elasticity (Ec0; Et0) on the compressive and tensile parallel to the grains of 40 hardwood species (960 experimental determinations with ≈ 12% moisture content), the precision of the relations ƒc0,k = 0,77 ∙ ƒt0,k and Ec0 = Et0 proposed by the standard were evaluated based on the analysis of variance (ANOVA). Besides the objective of evaluating such equations, linear, exponential, logarithmic and geometric regression models were adopted as an alternative proposal in the estimation of such properties. The statistical analyzes validated the equations proposed by the Brazilian standard, and the geometric equation, proposed in this work, proved to be the best fit model.
DOI: 10.6084/m9.figshare.11350829
title: Calibration and evaluation of the DSSAT/Canegro model for sugarcane cultivars under irrigation managements

description: ABSTRACT Model calibration is a fundamental factor to obtain high accuracy in the estimation of crop growth and yield. This study aimed to parameterize the genetic and ecotype coefficients of the DSSAT/Canegro model for five sugarcane cultivars kept under three water managements, besides evaluating the accuracy of the model in predicting sugarcane stalk yield, sugar yield and height. Experimental field data were obtained from two years (2016 and 2017) of cultivation at FCAV/Universidade Estadual Paulista, Jaboticabal, SP, Brazil. The cultivars were maintained under supplementary irrigation, deficit irrigation and no irrigation. Data of the supplementary irrigation treatment (without stress) were used for the parameterization of each cultivar. Model accuracy was assessed by Pearson correlation (r), root mean squared error (RMSE), mean bias error (MBE), index of agreement (d) and confidence coefficient (c). The DSSAT/Canegro model is highly accurate in predicting stalk and sugar yields of sugarcane grown under water regimes, presenting itself as a viable alternative in sugarcane yield simulation. For better performance of the DSSAT/Canegro model, it is necessary to parameterize the variables related to the ecotype of the cultivars, besides the specific coefficients of the cultivars.
DOI: 10.6084/m9.figshare.11350835.v1
title: SYNTHESIS, CHARACTERIZATION AND EVALUATION OF THE HETEROGENEOUS BASIC CATALYST DAPTS-MCM-41 IN THE INTERESTERIFICATION REACTION OF PALM OIL AND PALM KERNEL OIL BLENDS

description: Abstract In recent years, the replacement of homogeneous catalysts by heterogeneous catalysts has been investigated as a sustainable alternative technology to obtain different products. In this context, this study investigated the activity of the heterogeneous catalyst DAPTS-MCM-41, obtained from the reaction between the MCM-41 molecular sieve and an organic base 3-ethylenediamine (trimethoxy) propyl silane (DAPTS) in the interesterification reaction of palm oil and palm kernel oil blends. The catalyst was characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD) and textural analysis (ASAP). The interesterified blends were evaluated by fatty acid profiles (FAME) and solid fat content (SFC). The significant changes observed in the solid fat contents of the blends before and after interesterification led to changes in physical properties due the random distribution of acyl groups on glycerol positions. No undesirable reactions such as degradation and trans isomer formation occurred since the fatty acid composition of the blends remained constant.
DOI: 10.6084/m9.figshare.11350844.v1
title: SIMULTANEOUS LIPID AND CAROTENOID PRODUCTION BY STEPWISE FED-BATCH CULTIVATION OF Rhodotorula mucilaginosa WITH CRUDE GLYCEROL

description: Abstract In the present study, an innovative cultivation strategy of Rhodotorula mucilaginosa CCT 7688 to accumulate both lipids and high added value carotenoids was proposed, with the potential to contribute to the economic feasibility of microbial oils in comparison with vegetable oils. The stepwise fed-batch cultivation with crude glycerol feeding at 24 h, 96 h, and 144 h, with the addition of magnesium to the initial culture medium, resulted in a lipid content of 51.0 ± 0.3 % CDW, biomass concentration of 21.00 ± 0.48 g L-1, total lipid production of 10.72 ± 0.18 g L-1, lipid productivity of 0.037 ± 0.001 g L-1 h-1, volumetric carotenoid production of 2843.2 ± 282.0 μg L-1, and carotenoid productivity of 9.87 ± 0.98 μg L-1 h-1. These values represent a 6-fold increase in lipid content, a 19-fold increase in lipid production, and a 2-fold increase in carotenoid production compared to batch cultivation.
DOI: 10.6084/m9.figshare.11350820
title: THE GAMIFIED WRITING OF FANFICTIONS WITH DIGITAL TECHNOLOGIES IN AN ENGLISH CLUB

description: ABSTRACT This study aims to understand relationships between school literacy practices and the gamified writing of fanfictions with the support of Digital Technologies (DT). The fanfictions are fictional stories written by fans based on an original product. They have become popular with the spread of the internet, especially among school-age teens. The justification for the development of reading and writing practices with the genre fanfiction, in this study, is based on a socio-cultural perspective of the literacy studies, in which the focus on learning a genre is not just in the assimilation of its structure, but in the ways in which the learning of a genre affords knowledge in particular ways. Mediations surrounding fanfictions took place in the context of an English Club with five subjects. The data come from statements of these subjects on the Classcraft gamification platform, from the fanfiction written during the Club classes and from a focus group performed with these subjects. In order to proceed with the analyzes, we constructed a timeline showing the relationship of the subjects with the fanfictions before the activities developed in the Club, the approximations, interactions and positioning during their writing trajectory and their perceptions about how the activities involving the genre from the use of different methodological approaches, after the writing practice of fanfiction. The results point mainly to the insertion of these subjects, as insiders, in different literacy practices involving the reading and writing of the genre fanfiction, mediated by the uses of DT. Furthermore, there are indications that the gamification allowed the subjects to evidence singular ways of positioning themselves in relation to reading, writing and different ways of being, acting and creating meanings in the school context.