Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities”最新文献

Experimental Investigations of Damping in Multilayered Materials 多层材料阻尼的实验研究

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-09-04 DOI: 10.18687/laccei2019.1.1.97

Julio Proaño, Odon M. Musimbi

{"title":"Experimental Investigations of Damping in Multilayered Materials","authors":"Julio Proaño, Odon M. Musimbi","doi":"10.18687/laccei2019.1.1.97","DOIUrl":"https://doi.org/10.18687/laccei2019.1.1.97","url":null,"abstract":"Damping characteristic of a material, also known as loss factor in dynamics, is challenging to estimate. However, the accurate determination of the damping value is critical in the prediction of vibration response and in the control of structural vibrations. While many studies have focused on the accurate measurement of the loss factor and other dynamic characteristics, there is a need for the study of factors controlling the damping and its variation. This work seeks to understand the variation of damping at a given point in a material and across the length and depth of material. The approach uses the time domain and a single frequency mode in all the configurations during the study. Different layered arrangements of composite beams are considered to study the influence of the layer configuration in the overall dynamic response. The study finds substantial damping variation at a single point, along the length of the samples and very little variation along the depth or thickness of the samples. The research also highlights the importance of the layers arrangements with the overlaying top layers materials governing the overall damping response of the layers. Keywords-Damping, Cyclic loading, layers, Vibrations, Dynamics","PeriodicalId":215354,"journal":{"name":"Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities”","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116421093","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}

引用次数: 3

Optimization Of The Drilling Parameters In Low Angle Wells By The Application Of Statistical Analysis 应用统计分析方法优化小角度井钻井参数

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.78

Danilo Arcentales-Bastidas, Álvaro Arreaga-Arevalo, Romel Erazo-Bone, Kenny Escobar-Segovia, Adriana Roman-Aguilar, Xavier Vargas Gutierres

引用次数: 1

Estudio experimental del comportamiento geotécnico de suelo arenoso con ceniza de madera y carbón proveniente de ladrilleras artesanales 木灰和手工砖煤沙土岩土特性的实验研究

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.116

G. Ramírez, José Fernando Aponte Castello, Julio Martín Gálvez Cano

引用次数: 0

Minería de Patrones Secuenciales aplicada a la Predicción del Plegamiento de Proteínas 序列模式挖掘应用于蛋白质折叠预测

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.37

J. Quintana-Zaez, Guillermo E. Calderón-Ruiz, Cosme E. Santisteban-Toca, H. R. Velarde-Bedregal

引用次数: 0

AHP-based approach for lighting system selection in an underground parking 基于层次分析法的地下停车场照明系统选择

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.252

Pablo Pérez-Gosende

引用次数: 1

El Uso de las TIC en los Procesos de Enseñanza del Área de Probabilidad y Estadística en Universitarios 信息通信技术在大学概率与统计领域教学过程中的应用

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.247

A. Gutiérrez, O. Agudelo, J. Baquero

引用次数: 0

Computing and engineering students’ perceptions of entrepreneurship education in a Jamaican university 一所牙买加大学计算机与工程专业学生对创业教育的看法

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.452

Lisa Facey-Shaw, D. Mcken, Kemar Warren, Dillon Young, Hylton Mcdonald

{"title":"Computing and engineering students’ perceptions of entrepreneurship education in a Jamaican university","authors":"Lisa Facey-Shaw, D. Mcken, Kemar Warren, Dillon Young, Hylton Mcdonald","doi":"10.18687/laccei2019.1.1.452","DOIUrl":"https://doi.org/10.18687/laccei2019.1.1.452","url":null,"abstract":"Entrepreneurship fosters growth and competitiveness in a country’s economy. University students, especially those in the technical fields, have the potential to found high growth technological-based innovative ventures. This paper looks at student perceptions of entrepreneurship education among undergraduate computing and engineering students at the University of Technology, Jamaica as a first step in fostering entrepreneurial intentions. Students appear to have limited exposure to entrepreneurial education which can affect their entrepreneurial intentions and reduce their inclination to start a business. Implications are that deliberate formal and informal curriculum activities should be instituted to promote innovation and entrepreneurship among computing and engineering students so that their technical education can lead to greater participation in entrepreneurial programs and activities. The significance is that increased participation among this group can result in technologically based businesses which can address the human capital gap in the Latin American and Caribbean region. Keywords—Entrepreneurship education, entrepreneurial intentions, computing and engineering, Jamaica","PeriodicalId":215354,"journal":{"name":"Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities”","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133704979","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}

引用次数: 1

Agente compañero como apoyo a actividades colaborativas en cursos virtuales 合作代理支持虚拟课程中的协作活动

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.400

N. Duque-Méndez, Valentina Tabares Morales

引用次数: 0

Predictive analysis for calculating the valuation of the affiliated fund of a private pension system using machine learning techniques and tools 使用机器学习技术和工具计算私人养老金系统附属基金估值的预测分析

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.343

Jimmy Armas, Jhonatan Espinoza Ladera, Brian Dueñas Castillo, Santiago Aguirre Mayorga

{"title":"Predictive analysis for calculating the valuation of the affiliated fund of a private pension system using machine learning techniques and tools","authors":"Jimmy Armas, Jhonatan Espinoza Ladera, Brian Dueñas Castillo, Santiago Aguirre Mayorga","doi":"10.18687/laccei2019.1.1.343","DOIUrl":"https://doi.org/10.18687/laccei2019.1.1.343","url":null,"abstract":"this paper proposes a model for the analysis of the prediction of the accumulated fund for affiliates based on an area of study such as machine learning. The model allows to predict the pension fund of an affiliate in the private pension system by means of a web solution. In this sense, people will have, information and an adequate tool that allow them to have an oversight of the valuation of their funds throughout the years until retirement. In Peru, the decree of law 1990 states that the age for retirement is 65 years old, although there is also the option for early retirement. The proposed model consists of data analytics usage based on the modeling of machine learning algorithms through cloud platforms. The model structure includes four layers: transformation of the affiliate's data, security and privacy of personal data, obtaining and managing data, and finally, the life cycle of data applied to analytics. The model emphasizes data analytics concepts where large amounts of data are examined that lead to conclusions for better decision making. In doing this, the machine learning technique \"boosted decision tree\" is used due to the proximity of this technique applied in the financial forecast. The model was validated with a Pension Fund Administrator (AFP) in Lima (Peru) and the results obtained focused on the use of improved decision tree regression with a coefficient of determination of 99.997% and an average square error of 0.00650%. The coefficient of determination is an indicator of the quality of the model to predict results while the quadratic error quantifies the percentage of error among the set of results obtained under the boosted decision tree regression model. Keywords— predictive models, AFP Fund, pension fund administrator, predictive analysis, machine learning, decision trees.","PeriodicalId":215354,"journal":{"name":"Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities”","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133833573","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}

引用次数: 1

Diseño de las soluciones de estabilización en el cementerio patrimonial de Guayaquil, Ecuador. 厄瓜多尔瓜亚基尔遗产公墓的稳定方案设计。

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation, and Infrastructure for Sustainable Cities and Communities” Pub Date : 2019-08-03 DOI: 10.18687/laccei2019.1.1.368

Fernando Morante Carballo, Josué Briones Bitar, Paul Cesar Carrion Mero, M. Chávez, M. Aguilar

引用次数: 1