Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00070
Karla Bazan-Rios, Carla Chavez-Canales, E. Ramos-Palomino, Juan Eyzaguirre-Munarriz, R. Mesia
Lean, Six Sigma, and Theory of Constraints (TOC) are methodologies that focus on continuous improvement, that is why this paper presents one integrated system, where the three methodologies are combined simultaneously. The system is based on the five steps of TOC and used Lean and Six Sigma tools in order to identify the value flow in the process, by eliminating unproductive activities and controlling the variability of the critical process. The proposed system is applied in the furniture industry in Lima, Peru. The initial evaluation were accomplished using surveys and interviews. The results shows that Small Medium Enterprises (SME) have low productivity. In this case, an empirical model was used to validate the proposed methodology Six Sigma Theory of Constraints (6TOC). Based on this, it is possible to reduce production times and costs, which allows a 6% increase in productivity and raise the Sigma level in 4 of the SMEs that manufacture furniture in Peru. Finally, it can be said that 6TOC is a powerful tool that allows the wood furniture sector to achieve continuous improvement.
{"title":"An Integrated System: Lean, Six Sigma and Theory of Constraints, a Study Applied in Wooden Furniture Industry in Lima, Peru","authors":"Karla Bazan-Rios, Carla Chavez-Canales, E. Ramos-Palomino, Juan Eyzaguirre-Munarriz, R. Mesia","doi":"10.1109/IESTEC46403.2019.00070","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00070","url":null,"abstract":"Lean, Six Sigma, and Theory of Constraints (TOC) are methodologies that focus on continuous improvement, that is why this paper presents one integrated system, where the three methodologies are combined simultaneously. The system is based on the five steps of TOC and used Lean and Six Sigma tools in order to identify the value flow in the process, by eliminating unproductive activities and controlling the variability of the critical process. The proposed system is applied in the furniture industry in Lima, Peru. The initial evaluation were accomplished using surveys and interviews. The results shows that Small Medium Enterprises (SME) have low productivity. In this case, an empirical model was used to validate the proposed methodology Six Sigma Theory of Constraints (6TOC). Based on this, it is possible to reduce production times and costs, which allows a 6% increase in productivity and raise the Sigma level in 4 of the SMEs that manufacture furniture in Peru. Finally, it can be said that 6TOC is a powerful tool that allows the wood furniture sector to achieve continuous improvement.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127864007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00029
M. Venegas-Anaya, S. R., M. Venegas, M. M., Yairen Alonso J. J., Betzaida I. Rivera, A. Escobedo-Galván
To evaluate the impacts of the expansion of human development on American crocodile and spectacled caiman in the Wetlands of the Gulf of Montijo, Veragua Province, Panama, we conducted a geomatics assessment of the main watersheds that drain into the Gulf of Montijo, in the Eastern Tropical Pacific of Panama. We also performed a rapid inventory of the two species that inhabit the area. To evaluate habitat changes we used ArcMap 10.6 and 1992, 2000 and 2012 Land Covers developed by the Environment Ministry of Panama. To calculate the potential habitat area of the American crocodile and the spectacled caiman, we used the area limited by a 400-meter-high contour line and the coastline of the Gulf of Montijo. Crocodile and caiman populations assessment was done in dry season (January to March) of 2018. In 23 nights we covered 74.43 Km, counted 215 animals, and captured and released 36 individuals. Sex ratio for both species was 2:6 females/males. The encounter rate for American crocodile was 0.21 ind/Km (n = 16; distance covered = 74.43 Km; visited sites = 12) and for spectacled caiman was 0.27 ind/Km (n = 20; distance covered = 74.43 Mm; visited sites = 12). Suitability of habitat area for crocodiles and caimans increased on 3,8 % between 1992 and 2012 due to the switch between Forest area and agriculture areas. The considerable increase in non-native forest plantations and invasive species has been shown, in the field, to be a relevant cause of the fragmentation of these habitats.
{"title":"Geomatics in Conservation: Habitat Status and Population Ecology of Crocodiles and Alligators of the Gulf of Montijo Wetland, Panama","authors":"M. Venegas-Anaya, S. R., M. Venegas, M. M., Yairen Alonso J. J., Betzaida I. Rivera, A. Escobedo-Galván","doi":"10.1109/IESTEC46403.2019.00029","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00029","url":null,"abstract":"To evaluate the impacts of the expansion of human development on American crocodile and spectacled caiman in the Wetlands of the Gulf of Montijo, Veragua Province, Panama, we conducted a geomatics assessment of the main watersheds that drain into the Gulf of Montijo, in the Eastern Tropical Pacific of Panama. We also performed a rapid inventory of the two species that inhabit the area. To evaluate habitat changes we used ArcMap 10.6 and 1992, 2000 and 2012 Land Covers developed by the Environment Ministry of Panama. To calculate the potential habitat area of the American crocodile and the spectacled caiman, we used the area limited by a 400-meter-high contour line and the coastline of the Gulf of Montijo. Crocodile and caiman populations assessment was done in dry season (January to March) of 2018. In 23 nights we covered 74.43 Km, counted 215 animals, and captured and released 36 individuals. Sex ratio for both species was 2:6 females/males. The encounter rate for American crocodile was 0.21 ind/Km (n = 16; distance covered = 74.43 Km; visited sites = 12) and for spectacled caiman was 0.27 ind/Km (n = 20; distance covered = 74.43 Mm; visited sites = 12). Suitability of habitat area for crocodiles and caimans increased on 3,8 % between 1992 and 2012 due to the switch between Forest area and agriculture areas. The considerable increase in non-native forest plantations and invasive species has been shown, in the field, to be a relevant cause of the fragmentation of these habitats.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122930630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00080
Gino Alvarado, Angel Mejia, J. Salazar
This project proposes the development of a prototype of structural health monitoring using WSN (Wireless Sensor Networks), whose objective is to determine the state of a structure effectively, simply and without high implementation costs. The development of this device is carried out by means of an Arduino Uno, this equipment is used due to its storage capacity and adaptability since it is the one in charge of collecting the data by means of the sensors that will be connected to it. The sensors used for the elaboration of this project of titration, are the modules of vibration SW-420 chosen since in conjunction with an OPAMP LM393 helps to the detection of some vibration in the required threshold, these sensors of vibration are located on the structure to analyze, obtaining more exact measurement and precise data reason why they allow to determine the state of the same one, thanks to international norms which were used to obtain conclusions on the monitored structure. XBee devices are used for data transmission due to their low latency and great synchronization of predictable communication, since this application requires a high data traffic. Which are based on the 802.15.4 standard used to create point-to-point or point-to-multipoint networks, the configuration is done through the XCTU software achieving an open protocol communication, which are responsible for sending the information wirelessly. The information is stored in a SQlite database using the Phyton programming language, through the collection of data from the processing and transmission devices the Matlab program delivers comparative results with the international standards detailed in the investigation and thus determining the type of damage to the structure.
{"title":"Design and Implementation of a Prototype for Structural Health Analysis of a Bridge through a Network of Wireless Sensors Using MatLab Software","authors":"Gino Alvarado, Angel Mejia, J. Salazar","doi":"10.1109/IESTEC46403.2019.00080","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00080","url":null,"abstract":"This project proposes the development of a prototype of structural health monitoring using WSN (Wireless Sensor Networks), whose objective is to determine the state of a structure effectively, simply and without high implementation costs. The development of this device is carried out by means of an Arduino Uno, this equipment is used due to its storage capacity and adaptability since it is the one in charge of collecting the data by means of the sensors that will be connected to it. The sensors used for the elaboration of this project of titration, are the modules of vibration SW-420 chosen since in conjunction with an OPAMP LM393 helps to the detection of some vibration in the required threshold, these sensors of vibration are located on the structure to analyze, obtaining more exact measurement and precise data reason why they allow to determine the state of the same one, thanks to international norms which were used to obtain conclusions on the monitored structure. XBee devices are used for data transmission due to their low latency and great synchronization of predictable communication, since this application requires a high data traffic. Which are based on the 802.15.4 standard used to create point-to-point or point-to-multipoint networks, the configuration is done through the XCTU software achieving an open protocol communication, which are responsible for sending the information wirelessly. The information is stored in a SQlite database using the Phyton programming language, through the collection of data from the processing and transmission devices the Matlab program delivers comparative results with the international standards detailed in the investigation and thus determining the type of damage to the structure.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127938714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00094
Vanesa Peñalba Achurra, Y. M., Milena Gómez Cedeño
The world cocoa market has a significant demand, foreseeing an increase of 30% by 2020, which creates opportunities. Panama has been a cocoa producer since 1900, with a low profile, but the quality of the grain competes worldwide. Cocoa cultivation is mostly developed by family of indigenous origin, mainly by women; directly affecting the reduction of rural poverty. Despite this, between 2017 and 2018 there was a 23% reduction in national production. In this sense, from a literature review a conceptualization on the sustainability of the food supply chain is presented. Based on the results, a theoretical model is proposed to measure the relationship between Cocoa Supply Chain Management and its relationship in Sustainable Development, which constitutes a roadmap for future research.
{"title":"Management of the Cocoa Supply Chain and Its Relationship in Sustainable Development: A Theoretical Model","authors":"Vanesa Peñalba Achurra, Y. M., Milena Gómez Cedeño","doi":"10.1109/IESTEC46403.2019.00094","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00094","url":null,"abstract":"The world cocoa market has a significant demand, foreseeing an increase of 30% by 2020, which creates opportunities. Panama has been a cocoa producer since 1900, with a low profile, but the quality of the grain competes worldwide. Cocoa cultivation is mostly developed by family of indigenous origin, mainly by women; directly affecting the reduction of rural poverty. Despite this, between 2017 and 2018 there was a 23% reduction in national production. In this sense, from a literature review a conceptualization on the sustainability of the food supply chain is presented. Based on the results, a theoretical model is proposed to measure the relationship between Cocoa Supply Chain Management and its relationship in Sustainable Development, which constitutes a roadmap for future research.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115756967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00063
Sofía Monsalve, Valeria Lotero, Alejandro Peña, A. Patino
Nowadays the equitable distribution of media subsidies in the world represents one of the greatest challenges. In Colombia, the government seeks to focus public and social spending on the poorest and most vulnerable population in the territory. To achieve this goal, a Beneficiaries Selection System for Social Programs (SISBEN) has been created to obtain socio-economic information from population groups. It is used to determine the possible benefits of government subsidies in the areas of health, education, among others. However, the system has irregularities at the time of selection, which causes the budget to be granted to people who do not deserve it. In the present article, a neural model is proposed for the classification of the possible beneficiaries of the SISBEN through a mathematical method that groups by centroids the observations, which allows grouping the applicants according to their characteristics in clusters.
{"title":"Neural Network Model to Re-Rate the Benefits System Entry of People in Colombia","authors":"Sofía Monsalve, Valeria Lotero, Alejandro Peña, A. Patino","doi":"10.1109/IESTEC46403.2019.00063","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00063","url":null,"abstract":"Nowadays the equitable distribution of media subsidies in the world represents one of the greatest challenges. In Colombia, the government seeks to focus public and social spending on the poorest and most vulnerable population in the territory. To achieve this goal, a Beneficiaries Selection System for Social Programs (SISBEN) has been created to obtain socio-economic information from population groups. It is used to determine the possible benefits of government subsidies in the areas of health, education, among others. However, the system has irregularities at the time of selection, which causes the budget to be granted to people who do not deserve it. In the present article, a neural model is proposed for the classification of the possible beneficiaries of the SISBEN through a mathematical method that groups by centroids the observations, which allows grouping the applicants according to their characteristics in clusters.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114794497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00112
Héctor Corro, E. Robles, Fernando Merchan, Héctor Poveda
The internet of things covers a large number of solutions, among which we have the LoRa technology. The following work present theoretical and technical aspects of the implementation of this technology in a wireless network to monitor environmental parameters. The document covers a brief look of the physical layer of the LoRa network, such as frequency bands and type of modulation, as well as details of components and procedures performed in our network, and results of the performance of the network in terms of signal-to-noise ratio (SNR) as a function of distance.
{"title":"Design and Implementation of a LoRa-Based IoT Network for Environmental Parameters Monitoring","authors":"Héctor Corro, E. Robles, Fernando Merchan, Héctor Poveda","doi":"10.1109/IESTEC46403.2019.00112","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00112","url":null,"abstract":"The internet of things covers a large number of solutions, among which we have the LoRa technology. The following work present theoretical and technical aspects of the implementation of this technology in a wireless network to monitor environmental parameters. The document covers a brief look of the physical layer of the LoRa network, such as frequency bands and type of modulation, as well as details of components and procedures performed in our network, and results of the performance of the network in terms of signal-to-noise ratio (SNR) as a function of distance.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127331670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00101
David Benalcázar, Daniel Vera Hensiek, Ericson López, S. Sandobalín, Henry Llumiquinga
This document is about the development of an autonomous clean environment of 100,000 class that will be used for the assembly of the nano-satellite "BuhoSat", a research project of the Astronomical Observatory of Quito of the National Polytechnic School. The clean environment is built with acrylic panels and has a total volume of 0.618 cubic meters. Its main objective is to provide the optimal environmental conditions for the protection of the nano-satellite components. It has sensors and actuators that respond automatically to create the right conditions for assembly and storage. Additionally, it has an area with electronic sensors and mechanisms to help determine the center of mass and to test the attitude determination and control system of the nano-satellite.
{"title":"Development of a Clean Environment for Nano-Satellite Integration and Testing at the University Level","authors":"David Benalcázar, Daniel Vera Hensiek, Ericson López, S. Sandobalín, Henry Llumiquinga","doi":"10.1109/IESTEC46403.2019.00101","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00101","url":null,"abstract":"This document is about the development of an autonomous clean environment of 100,000 class that will be used for the assembly of the nano-satellite \"BuhoSat\", a research project of the Astronomical Observatory of Quito of the National Polytechnic School. The clean environment is built with acrylic panels and has a total volume of 0.618 cubic meters. Its main objective is to provide the optimal environmental conditions for the protection of the nano-satellite components. It has sensors and actuators that respond automatically to create the right conditions for assembly and storage. Additionally, it has an area with electronic sensors and mechanisms to help determine the center of mass and to test the attitude determination and control system of the nano-satellite.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126041280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00103
Thiago Glissoi Lopes, R. M. Rocha, P. Aguiar, F. Alexandre, Pedro Oliveira Conceição, M. Viera, T. França
The pencil lead break method (PLB) is widely used on account of its efficiency in the characterization of acoustic emission sensors (AE), which are used in the monitoring of structures. The piezoelectric diaphragm (PZT) has been studied in recent years as an alternative to conventional AE sensors. The present work aims to study the influence of temperature on the piezoelectric diaphragm response for the monitoring of the 3D printing process. Fifteen PLB tests were performed on the glass surface of a 3D printer at three different temperatures. The results demonstrate that the frequency response of the sensor is directly influenced by the temperature variations. When comparing the frequency response of the signals obtained at different temperatures, it was possible to identify frequency bands that were not altered by the temperature variations. Thus, based on the results of this study, the 3D printing process can be monitored through the PZT diaphragm signals, along with the application of digital filters and signal processing.
{"title":"Study of the Influence of Temperature on Low-Cost Piezoelectric Transducer Response for 3D Printing Process Monitoring","authors":"Thiago Glissoi Lopes, R. M. Rocha, P. Aguiar, F. Alexandre, Pedro Oliveira Conceição, M. Viera, T. França","doi":"10.1109/IESTEC46403.2019.00103","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00103","url":null,"abstract":"The pencil lead break method (PLB) is widely used on account of its efficiency in the characterization of acoustic emission sensors (AE), which are used in the monitoring of structures. The piezoelectric diaphragm (PZT) has been studied in recent years as an alternative to conventional AE sensors. The present work aims to study the influence of temperature on the piezoelectric diaphragm response for the monitoring of the 3D printing process. Fifteen PLB tests were performed on the glass surface of a 3D printer at three different temperatures. The results demonstrate that the frequency response of the sensor is directly influenced by the temperature variations. When comparing the frequency response of the signals obtained at different temperatures, it was possible to identify frequency bands that were not altered by the temperature variations. Thus, based on the results of this study, the 3D printing process can be monitored through the PZT diaphragm signals, along with the application of digital filters and signal processing.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126710743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00089
J. Valdivia, Diego Huapaya, J. Rodriguez, C. Eyzaguirre
The amount of waste has increased over time, currently being a serious threat to the environment. Such is the case of flat glass, which generates considerable quantities of waste that are not reusable in the production. This has generated that its residues receive a greater attention by the authorities and researchers to global level in the last years, proposing respectful uses that contribute towards a more sustainable surroundings. This study deepens in the use of the flat glass waste to reduce its shrinkage and proposes it as a solution in the elaboration of an ecological concrete. For this, different mixing designs were made with varying percentages of flat sprayed glass, making comparisons with respect to a concrete pattern to identify its effect on concrete properties; evaluated by slump tests, compressive strength and compressive strength in sulfate attack conditions. The results show that, the addition of pulverized flat glass contributes to the improvement of slump, compressive strength and compressive strength under sulphate attack conditions; and it presents an economic saving with respect to the reference concrete
{"title":"Use of Waste Glass Powder as an Addition in the Elaboration of Ecological Concrete","authors":"J. Valdivia, Diego Huapaya, J. Rodriguez, C. Eyzaguirre","doi":"10.1109/IESTEC46403.2019.00089","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00089","url":null,"abstract":"The amount of waste has increased over time, currently being a serious threat to the environment. Such is the case of flat glass, which generates considerable quantities of waste that are not reusable in the production. This has generated that its residues receive a greater attention by the authorities and researchers to global level in the last years, proposing respectful uses that contribute towards a more sustainable surroundings. This study deepens in the use of the flat glass waste to reduce its shrinkage and proposes it as a solution in the elaboration of an ecological concrete. For this, different mixing designs were made with varying percentages of flat sprayed glass, making comparisons with respect to a concrete pattern to identify its effect on concrete properties; evaluated by slump tests, compressive strength and compressive strength in sulfate attack conditions. The results show that, the addition of pulverized flat glass contributes to the improvement of slump, compressive strength and compressive strength under sulphate attack conditions; and it presents an economic saving with respect to the reference concrete","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126535927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/IESTEC46403.2019.00013
Luis Valencia-Flórez, Oswaldo Osorio-Mora, L. Latorre-Vásquez, D. Mejía-España
Creole potato varieties represent an alternative for the agroindustrial chain and an opportunity to contribute to food security and conservation of biodiversity. The content of glucose in the tubers is related to quality and nutritional factors in processed products such as potato chip chips. In order to determine the influence of the genotype - environment interaction on the glucose content in four Creole potato varieties, they undergo different fertilization conditions in four different localities in the Department of Nariño in Colombia. It is found that there is a locality that significantly influences one of the varieties, Botana for the genotype UdenarST Cr42, while for the other varieties there are no significant differences with the design factors.
{"title":"Genotype Environment Interaction on the Content of Glucose in Four Varieties of Creole Potato","authors":"Luis Valencia-Flórez, Oswaldo Osorio-Mora, L. Latorre-Vásquez, D. Mejía-España","doi":"10.1109/IESTEC46403.2019.00013","DOIUrl":"https://doi.org/10.1109/IESTEC46403.2019.00013","url":null,"abstract":"Creole potato varieties represent an alternative for the agroindustrial chain and an opportunity to contribute to food security and conservation of biodiversity. The content of glucose in the tubers is related to quality and nutritional factors in processed products such as potato chip chips. In order to determine the influence of the genotype - environment interaction on the glucose content in four Creole potato varieties, they undergo different fertilization conditions in four different localities in the Department of Nariño in Colombia. It is found that there is a locality that significantly influences one of the varieties, Botana for the genotype UdenarST Cr42, while for the other varieties there are no significant differences with the design factors.","PeriodicalId":388062,"journal":{"name":"2019 7th International Engineering, Sciences and Technology Conference (IESTEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126578094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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