bluuebunny/crossref_metadata_2025_split huggingface dataset:
Developing the methodology to investigate the thermal comfort of hot-humid climate under different ventilation modes
Authors: Chen Po-Yuan , Chan Ying-Chieh 
Published: November 2019

Abstract
This study presents the development of an adaptive thermal comfort model for the hot and humid climate in Taiwan. We conducted field surveys in several offices and classrooms at National Taiwan University through a portable system which used Raspberry Pi, a small single-board computer, as processors to connect environmental sensors and as questionnaire user interface platform. This allowed us to collect indoor environmental data and investigate subjects’ responses simultaneously. The advantage of the portable system is to expand the pools of data collection. The field surveys can be set up and conducted in different classrooms or offices efficiently. In total, this study collected 257 samples. The thermal comfort profiles of two different ventilation strategies (i.e., air-conditioning (AC) and natural ventilation (NV)) were analysed. The results indicate that the actual percentage of dissatisfaction (APD) has the same trend as the predicted percentage of dissatisfaction by Fanger (PPD). However, when the predicted mean vote (PMV) is in the range of -0.5 to 0.5, the APD is approximately 20% higher than the PPD. The study also found that PMV underestimates subjects’ thermal sensation in both ventilation strategies.
A radiosity-based methodology considering urban environments for assessing daylighting
Authors: Besuievsky Gonzalo , Fernández Eduardo , Aguerre Jose Pedro , Beckers Benoit 
Published: November 2019

Abstract
Daylight computation requires the use of climate-based data as well as the correct treatment of lighting exchange, both in the interior and exterior environments, which is frequently not considered or roughly approximated. We present an efficient method for computing daylighting that considers the exterior components accurately. We analyze the influence of the exterior components depending on the number of light bounces, which may benefit early stage projects by providing a useful analysis for understanding the different daylight contribution sources.
Evaluation of building and systems performance for a deep domestic retrofit
Authors: Perisoglou Emmanouil , Li Xiaojun , Ionas Miltiadis , Patterson Joanne , Bassas Ester Coma , Jones Phil 
Published: November 2019

Abstract
European governments have set ambitious retrofitting targets driven by the commitment to reduce the greenhouse gas emissions by at least 80% by 2050. The United Kingdom has the oldest housing stock in Europe, with over 2/3 of dwellings built before 1976, when building regulations started to include energy efficiency. This raises concerns over carbon emissions, health, comfort and running costs, and government’s set targets and initiatives for significant improvements. Deep retrofitting by using innovative technologies with respect to aesthetics has considerable and measurable benefits, while it can be a costly and challenging process. This study examines a combination of measures undertaken in a pre-1919 dwelling in south Wales, including reduction of energy demand and the application of renewable energy supply and energy storage. A whole house performance and a systems breakdown evaluation is presented comparing the pre and post intervention status. Both monitoring and modelling tools where used, and the performance gap is also discussed. An annual reduction of 34% in space heating and 78% in electricity import was monitored with an additional electricity export of 3217kWh. This represents a total annual cost saving of £1115, at 2019 UK gas and electricity prices. The total cost of the retrofit was £55K.
Living wall influence on microclimates: an indoor case study
Authors: Gunawardena Kanchane Randev , Steemers Koen 
Published: November 2019

Abstract
To address the call for developing passive climate resilience strategies, the project examines the influence and effectiveness of utilising vertical greening for reducing space-conditioning loads of urban buildings and surrounding microclimates. By examining this focus, the project aims to improve the design of urban built environments that would in turn lead to health and wellbeing enhancements of their growing populations. The purpose of this paper is to present preliminary findings from a monitoring campaign carried out at an indoor atrium case study in Cambridge, UK. Key parameters monitored included soil, surface, and air temperature; relative humidity; and surface air movement. Results obtained show relatively lower air temperature and higher relative humidity levels proximate to the living wall. Wintertime monitoring has also indicated a surface flow pattern that demonstrates the presence of a modest downdraught effect. Although these modifications are modest in magnitude, they could still offer significant localised thermal comfort benefit to building occupants, as well as potential for contributing to a reduced space-conditioning load.
Novel microwave transparent low emissivity coating for energy-efficient glazing: towards 5G frequencies
Authors: Fleury Jeremy , Burnier Luc , Lanini Matteo , Di Domenico Mauro , Zimmermann Erich , Genoud Carine , Salvadé Andrea , Schueler Andreas 
Published: November 2019

Abstract
Novel mobile communication technology such as 5G will provide a more efficient and reliable platform for the development of the Internet of Things. However, microwaves in the range of 5G frequencies are strongly attenuated by modern energy-efficient glazing found in most recent buildings. This paper presents major steps towards microwave transparent glazing which allows a flawless transmission of 5G frequencies while maintaining the thermal energy efficiency of the window. Several double glazing windows with different properties were fabricated with a laser treatment and their effect on the signal attenuation in the frequency range between 0.7 and 3.5 GHz was measured. The results showed that the laser treated windows produced a transmission of the microwave as good as a non-coated window. In comparison, an energy-efficient window without laser treatment reduces the signal strength up to 300 times.
In-situ and post annealing effect on the microstructure and the optical properties of black Cu-Co-Mn oxide spinel coating for Parabolic Trough Collector (PTC) applications
Authors: Daviran Samaneh , Krammer Anna , Schüler Andreas 
Published: November 2019

Abstract
The present paper deals with the deposition of Cu-Co-Mn oxides thin film by magnetron sputtering to produce a black selective coating for solar Parabolic Trough Collector (PTC) systems. The effect of temperature was studied between the nominal temperature range of 300-600°C, using both in-situ heating and post annealing. The optical behavior was investigated by advanced spectrophotometry devices in visible, near and infrared spectral ranges. Scanning Electron Microscopy (SEM) was used to show the microstructure, and X-ray Diffraction (XRD) to identify the phases and to compare the samples’pattern prepared at different temperatures.
Mathematical model for production sequencing in a manufacturing company
Authors: Caicedo A J , Parra J W , Rivera L 
Published: November 2019

AbstractThe objective of the research was to determine the optimal sequence of production of n jobs in m operations, in a small footwear manufacturing company with characteristics of a flow shop machine environment, which minimizes the total time of completion of jobs in the production system, makespan. A mathematical model of integer linear programming was designed, coded and solved by means of the JuliaPro software. It shows the production sequence that does not consider permutation, and minimizes makespan with 3807 minutes. The mathematical model of optimization is presented as a flexible and valuable tool for operational decision making, which could be replicated in other manufacturing companies, impacting on the improvement of costs and delivery times.
Comparative evaluation of the physical, mechanical and thermal properties of traditional H10 and H15 red clay blocks manufactured by the ceramic industry from San José de Cúcuta, Colombia
Authors: Narváez-Ortega M S , Sánchez-Molina J , Díaz-Fuentes C X 
Published: November 2019

Abstract
The traditional blocks of baked clay represent 15% of the total production of the ceramics cluster in the Norte de Santander region, with a product typology whose dimensions, shape, weight and price are the most demanded of the market. Its positioning becomes a molding element of the materiality of the architectural covering in the metropolitan area of San José de Cúcuta. This research focuses on the study of two of the most economical and used products in building materials constructions in the city: the blocks manufactured by extruded H-10 of 6 rectangular cavities with market dimensions L: 300 mm, W: 100 mm, H: 200 mm and H-15 of 9 rectangular cavities of size L: 300 mm, W: 150 mm, H: 200 mm and seeks to report its physical-mechanical characteristics to compare the impact of the variables in the units thermal behavior in the enclosure system. This work is carried out by applying 2 methods: in the first phase tests are carried out at the laboratory level using the Norma Técnica Colombiana 4017 and the Norma Técnica Colombiana 4205 to determine the qualitative properties of the building units in each format, and a simulation of temperature distribution and heat flux by finite element method in software ANSYS R16 evaluating the incidence of variables in the heat transfer in a traditional masonry system, evaluating the thermal performance in extreme temperature conditions of 33 °C typical of the region. The results show a difference of 0.709 °C between the thermal behavior between the formats, with a reduction of final thermal energy by the approximate increase of 50 mm in the thickness, this variant presents an opportunity of development to minimize the impacts of the loads of temperature in the envelope, favorable for warm tropical climates.
Comparison of lightening costs for reinforced concrete gantry
Authors: Prada-Botía G C , Rojas-Suárez J P , Orjuela-Abril M S 
Published: November 2019

Abstract
The selection of suitable materials for a construction defines the costs and characteristics that can contribute to the building, being of vital importance to make a correct choice. Lightening is an element to reduce costs and optimize resources, adding a better index of resistance against earthquakes, being of vital importance the good choice of this: concrete, clay or EPS. In this investigation a comparison of costs and incidence of the three types of lighteners that are used in the construction of three levels houses with reinforced concrete portico based on the requirements of NSR-10 was made by means of statistical samples/data, graphs and tables of data analysis, on the quotations and information collected from different studies on lightening costs in structures.
Influence of the firing process on water absorption and compressive strength in ceramic samples
Authors: Guerrero-Gómez G , Acevedo-Peñaloza C H , Noriega-Sánchez C J 
Published: November 2019

Abstract
It is presents the evaluation of water absorption and compressive and flexural strength in perforated blocks manufactured in a Hoffman-type kiln of brickworks Ocaña, Colombia. Combustion gases are reused in the firing process and the samples are directly exposed to fire. Standardized non-destructive quality control tests such as dimensional, initial absorption rate and 24-hour immersion, and destructive tests such as compressive strength and modulus of rupture were performed. The firing process with higher fire exposure on the samples showed values of compressive and flexural strength and water absorption percentage according to current regulations. The samples comply with the values established in the standard and allow their use as non-structural masonry products for interior or exterior use.
Mobile application for the optimization of milk production and goat feeding processes: Experimental farm of Universidad Francisco de Paula Santander, Ocaña, Colombia
Authors: Rico-Bautista D , Barrientos-Avendaño E , Cuesta-Quintero F R , Coronel-Rojas L A , Trillos-Arenas J , Hernadez-Villamizar D 
Published: November 2019

AbstractThe main objective of this article is to show the phases of the development of a mobile application. It allows to give support to the optimization of the milk production and goats feeding processes in the experimental farm of the “Universidad Francisco de Paula Santander, Seccional Ocaña”. In the first phase, an analysis was made of the different manual processes under physical formats currently carried out by the goat project manager, allowing the raising of system requirements. In the second, the systematization of information capture through user-friendly interfaces on a Mobile App is carried out. In the final phase, the processes were validated with the application impact. The features allowed a notable improvement in the processes execution. The goat project managers were able to have greater control of the information and a clearer focus on how productive each goat has been. As a result, the consultations, reports, traceability and identification of procedures and sanitary interventions to each one of the goats were speeded up. In the same way, it is possible to generate a support tool for decision making in all aspects of the administration of the experimental farm.
Analysis of folic acid in white rice by ultra-fast liquid chromatography
Authors: Rodríguez D C , Torres L N , Parra J W 
Published: November 2019

Abstract
The method of analysis was standardized, and the folic acid content was determined in samples of fortified white rice (Z, G and D) and unfortified (E and O). The analysis was performed in triplicate in samples of 2.0000 g, hydrolysis was performed with phosphate buffer pH 8.82 for one hour and then lowered to pH 7.00 for enzymatic treatment with takadiastase at 65°C. The extracts were filtered by gravity, purified with nylon syringe filters and ion exchange cartridges (solid phase extraction using strong anion exchange cartridges). The concentration in mg folic acid/kg of rice, in each extract was determined by ultrafast liquid chromatography, with average values for Lot1 of the fortified rice samples, of 44.03, 51.95, 38.08, and unfortified samples of 31.51 and 21.94, and with respect to Lot2 of 41.26, 41.27, 34.54 for fortified ones and 24.92 and 20.94 for non-fortified ones, respectively. The concentration of folic acid obtained by filtration through syringe filters was higher than in the extracts purified by solid phase extraction using strong anion exchange cartridges, evidencing loss of the analyte. The recovery of folic acid in the samples doped and purified by syringe filters was around 65.00%, while by solid phase extraction using strong anion exchange cartridges 43.00%. There is evidence of variation in the folic acid content between different batches of rice of the same brand.
La Brava creek: Water quality evaluation
Authors: Valdes-Solano D M , Fonseca-Herreño L C , Duarte-Suárez A M 
Published: November 2019

AbstractThe water quality of the “La Brava” creek, in Ocaña Norte de Santander, was analyzed using physicochemical and biological parameters to determine quality indices. Three sampling sections were established throughout the study area, taking samples in duplicate every four months for each point during a year; characterization of each sample was done following the protocols of standard methods. The information obtained was analyzed through water quality and contamination indices, determining that the water quality of the micro-basin is moderate, and its level of contamination is low; remaining in good homogeneous condition along the entire area. The utilization of a systems of indices allows for a good approach to assess the conditions of the basin, establishing that, currently, anthropic activities have minimal effect on the water resource in the study area. It is important to highlight that, although the level of contamination is low, it is necessary to generate strategies that guarantee the continuous quality and water supply in the area.
Lipids production from Scenedesmus obliquus through carbon/nitrogen ratio optimization
Authors: Cuéllar-García D J , Rangel-Basto Y A , Urbina-Suarez N A , Barajas-Solano A F , Muñoz-Peñaloza Y A 
Published: November 2019

Abstract
Microalgae are one of the most promising sources of raw material for biofuel production and derivatives since its high yield of biomass and metabolites possess a low environmental impact. However, its implementation on large scale facilites still faces challenges such as the optimisation of lipid production (due to strain capacity and environmental factors) and downstream processes (extraction and separation of the lipidic fraction). The objective of the present investigation was to determine the potential of the carbon/nitrogen ratio as a technical tool for the improvement of total lipids on Scenedesmus obliquus. The carbon/nitrogen ratio was evaluated using a non-factorial design coupled with surface response methodology with sodium bicarbonate and sodium nitrate as carbon and nitrogen source. Results showed that the optimal conditions that enhanced the lipid deposition (up to 66% w/w) were 1.5 g L−1 sodium bicarbonate and 0,125 g L−1 of sodium nitrate. Finally, the results of the fatty acid profile shown the presence of stearic acid (C18: 0) with 22.63% and elaidic acid (C18:1) with 77.38%, with the absence of fatty acids of two or more double bonds. In conclusion, the adjustment in the carbon/nitrogen ratio favours the final deposition of lipids in Scenedesmus obliquus which is emerging as a possible candidate for the production of lipids of interest for the generation of biodiesel.
Multiple intelligences and academic performance in basic education students: An analysis of main components
Authors: Hernández C A , Prada R , Rincón G A 
Published: November 2019

Abstract
This research included a sample of students aged between 8 and 16 years, residents of San José de Cúcuta city, Colombia, belonging to socio-economic strata 1 and 2. Multiple intelligences (musical, logical-mathematical, interpersonal, naturalistic, intrapersonal, kinesthetic, linguistic and spatial) were measured according to the proposal by Gardner and school performance as an average of each subject taken during the first two cuts of the school year. The authors applied a principal components analysis with the purpose of characterizing and analyzing these students according to multiple intelligences, academic performance and their relationships. The sample consisted of 60 girls and 61 boys whose average age was 12 years (95% CI: 11.7 – 12.4 years). In the logical-mathematical intelligence was where the students obtained the highest average score, while in musical intelligence the lowest. In the rest of the cognitive capacities they reached similar averages. In relation to the subjects that this group of students studied, the best average grades were in behaviour, religion and physical education and the lowest in English. Through the principal components analysis it was observed that there is no evident association between the types of intelligences and the grades in the school subjects. Girls, in general, achieved better average scores in all subjects compared to their male counterparts (p < 0.05). Except for naturalistic intelligence, males show a greater development in the rest of the intelligences, in contrast to the girls who have higher scores in naturalistic intelligence.
Development of a decision support system for mapping variable rate fertilizing application on Soybean (Glycine max) cultivation
Authors: Nugraheni P H T , Mawardi M , Sutiarso L , Nugroho A P , Virgawati S , Fuadi M 
Published: November 2019

Abstract
Precision Farming (PF) has been developed in many countries. It is need an appropriate and integrated technology to achieve the goals, such as global positioning system (GPS) to mark the geographical coordinate, ArcGIS to map the spatial data, Variable-rate Application (VRA) to show the variability of soil properties on the field and Decision Support System (DSS) to establish the best management practices for the field operation. The objective of this research was to develop a decision support system for mapping VRA of precision fertilizing on soybean cultivation. The system generates a VRA map and shows the amount of required fertilizer for soybean according to the field and soil properties data. The DSS was developed using web application to facilitate the flexibility, and scalable access via internet. To execute the application, user requires to select the coordinates of the field and soil sample points and fertilizer dose data. The friendly user of DSS program was successfully produced with the VRA map showed the data of recommendation fertilizer as the decision support system. The outcome from this study was the application mapping VRA. Further steps are needed in order to apply this application to the farmers.
Fusion recombinant protein expression of newcastle disease virus from Escherichia coli-Cloned C1a using accurapidTM protein expression kit
Authors: Putri C N , Haryanto A 
Published: November 2019

Abstract
This research aimed to express F recombinant protein that is clon from genes F of local isolate ND virus which can be used as vaccine candidate in order to improve the effectiveness of ND virus vaccination. Confirmation of NDV pBT7-N-His-Fusion plasmid on C1a clone is done by gel agarose 1 % electrophoresis with staining by using fluorosafe DNA stain. To separate plasmid and insert that contain genes F, cutting is done with EcoRI restriction enzyme. EcoRI enzyme is able to cut NDV pBT7-N-His-Fusion plasmid through 37°C incubation process during three hours. DNA cutting visualization is done by gel agarose 1% electrophoresis by using fluorosafe DNA stain. NDV pBT7-N-His-Fusion plasmid is express by E. coli extract in order to gain F protein. The product of protein expression is visualized by SDS – PAGE and western blot. NDV pBT7-N-His-Fusion plasmid visualization by gel agarose electrophoresis results 4643 bp band. Moreover, from the visualization of Eco RI enzyme cutting on gel agarose electrophoresis result, the researcher found two bands with different size, 4001 bp and 642 bp. After protein expression process 25,6 kDa band is seen both in the result of SDS – PAGE and western blot.
Individual trust model for aplication e-wallet in Yogyakarta street food outlet workers
Authors: Fajri N , Wijayanto T , Ushada M 
Published: November 2019

Abstract
Street food outlets have a complex problem that shape the economic landscape of many countries. Many factors such as technology, organization and human factors are involved in this business process. Technology and human cooperation has opened the new realm industry in the real-world settings, in such applications, human and technology interaction plays a critical role in the overall system performance. Digital technology with internet based is one of technology adoptions in 4.0 era. Trust is the main factor that makes successful technology adoption. This research aimed to explore individual trust factors affecting the use and adoption of technology 4.0 in street food outlets. The studies involved in the development of framework of individual trust that separated three concepts of propensity trust, trust for technology and trust for information technology. The model was developed using SEM PLS that was undertaken using 200 participants who have worked in street food outlets. the model indicated that variabel Trusting Stance, Situational Trust and Trust for Information Technology were strongly influenced by the indikators. The all estimation parameters showed Q2 value bigger than 0 that all latin endogenous variabel has the relevant prediction to model. The findings from this research can inform variables that had influence to individual trust for technology 4.0 of street food outlets.