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The private sector's role in Colombia to achieving the circular economy and the Sustainable Development Goals 私营部门在哥伦比亚实现循环经济和可持续发展目标中的作用
Q3 Engineering Pub Date : 2023-08-28 DOI: 10.15446/dyna.v90n228.107721
Felipe Romero-Perdomo, Juan David Carvajalino-Umaña, Mauricio López-González, Natalia Ardila, Miguel Ángel González-Curbelo
The circular economy (CE) and the Sustainable Development Goals (SDGs) are two well-known initiatives to address issues like social injustice, environmental pollution, and resource scarcity. While these two initiatives have received the support of the Colombian government through plans and strategies, little is known about the involvement of private companies. The aim of this study was to examine the CE and SDGs' implementation in the Colombian private sector. The entities linked with the United Nations Global Compact served as the study population, which was assessed by a semi-structured survey whose data was handled by descriptive and non-parametric statistics. Findings indicate that 75% of the entities are supporting the SDGs and adopting the CE model simultaneously. The food and transportation sectors show the highest levels of alignment towards CE, followed by mining and manufacturing. Waste management is the most implemented type of CE practice (65%), while supply chain management is the least (20%). The SDGs that receive the most attention are SDG 17, SDG 6, SDG 16, and SDG 12. Conversely, SDG 2 and SDG 5 receive the least support.
循环经济(CE)和可持续发展目标(sdg)是解决社会不公、环境污染和资源稀缺等问题的两个众所周知的举措。虽然这两项倡议通过计划和战略得到了哥伦比亚政府的支持,但私营公司的参与情况却鲜为人知。本研究的目的是检查可持续发展目标和可持续发展目标在哥伦比亚私营部门的实施情况。与《联合国全球契约》有联系的实体作为研究对象,通过半结构化调查对其进行评估,其数据由描述性和非参数统计处理。调查结果表明,75%的实体在支持可持续发展目标的同时,也在采用社会责任模式。食品和运输行业对CE的认同程度最高,其次是采矿业和制造业。废物管理是实施最多的一种环境行政实践(65%),而供应链管理最少(20%)。最受关注的可持续发展目标是可持续发展目标17、可持续发展目标6、可持续发展目标16和可持续发展目标12。相反,可持续发展目标2和可持续发展目标5得到的支持最少。
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引用次数: 0
Effect of the financial structure on the liquidity risk of SMEs in Cartagena as a base of project formulation 财务结构对卡塔赫纳中小企业流动性风险的影响,作为项目制定的基础
Q3 Engineering Pub Date : 2023-08-28 DOI: 10.15446/dyna.v90n228.108626
Fabio Andrés Puerta-Guardo, Ana Susana Cantillo-Orozco, Alfredo Enrique Sanabria-Ospino, William Stive Fajardo-Moreno
The Liquidity Risk in Small and Medium Enterprises - SMEs in the City of Cartagena-Colombia is analyzed, based on the determination of their Capital Structure. The variables, liquidity risk (dependent) and capital structure (independent), were analyzed, based on a quantitative investigation with a correlational approach. The hypothesis was, H1: There is a positive relationship between the capital structure and liquidity risk. The population came from the accounting database as of December 31, 2016 of the Superintendencia de Sociedades, with a sample of 260 companies. It is concluded that the higher the level of indebtedness, the greater the liquidity risk of the company tends to increase, thus accepting the hypothesis established in the investigation. Derived from the analysis presented, recommendations are offered on the formulation of projects that can contribute to the improvement of the liquidity conditions of the companies analyzed.
本文在确定哥伦比亚卡塔赫纳市中小企业资本结构的基础上,对其流动性风险进行了分析。运用相关分析方法对流动性风险(依赖)和资本结构(独立)这两个变量进行了定量分析。假设是,H1:资本结构与流动性风险之间存在正相关关系。人口来自截至2016年12月31日的社会监管局会计数据库,样本为260家公司。得出负债水平越高,公司流动性风险越大的结论,从而接受了调查中建立的假设。根据所提出的分析,对制定有助于改善所分析公司流动性状况的项目提出了建议。
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引用次数: 0
Revisión de estrategias de enseñanza y aprendizaje de la electrónica básica orientada a neouniversitarios de ingeniería 以工程新大学生为导向的基础电子教学策略回顾
Q3 Engineering Pub Date : 2023-08-14 DOI: 10.15446/dyna.v90n227.109295
Julieth Osmeydy Parra-Gil, Edgar Orlando Caro, Jovani Alberto Jiménez-Builes
El objetivo principal de este artículo de tipo revisión bibliográfica es identificar y analizar las estrategias de enseñanza y aprendizaje más efectivas para la enseñanza de la electrónica básica a estudiantes neouniversitarios. En la búsqueda se emplearon bases de datos como Scopus, Web of Science y Google Scholar, entre otras. Los principales resultados de esta revisión bibliográfica indican que el uso de metodología activas, como el aprendizaje basado en proyectos, la resolución de problemas, la experimentación y el uso de TIC, resultan efectivas para la enseñanza de la electrónica básica. También se encontró que el uso de tecnologías educativas, como juegos y software de simulación, puede ser una herramienta útil para mejorar el aprendizaje de esta materia. En conclusión, la enseñanza de la electrónica básica puede beneficiarse de metodologías de enseñanza activa que involucren a los estudiantes en su propio aprendizaje.
这篇文献综述的主要目的是确定和分析最有效的教学和学习策略的基础电子教学的新生。该研究使用了Scopus、Web of Science和谷歌Scholar等数据库。本文献综述的主要结果表明,使用基于项目的学习、解决问题、实验和ict的使用等主动方法对基础电子教学是有效的。研究发现,使用教育技术,如游戏和模拟软件,可以是一个有用的工具,以提高这门学科的学习。总之,基础电子教学可以受益于积极的教学方法,让学生参与自己的学习。
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引用次数: 0
Biogas utilization from municipal solid waste in developing countries towards the transition to sustainable development – The Colombian case 发展中国家向可持续发展过渡的城市固体废物沼气利用-哥伦比亚案例
Q3 Engineering Pub Date : 2023-08-14 DOI: 10.15446/dyna.v90n227.107131
Ana Julieth Calderón-Márquez
Sustainable Development (SD) encompasses the enhancement of quality of life through social, economic, and environmental pillars. Biogas utilization from landfills (BUL) is a widely adopted technique in the United States and some European regions. However, myths persist regarding its implementation in Latin American and Caribbean countries, as well as in certain low-and middle-income economies. This article aims to assess the electricity generation potential in Colombia's major cities and highlight the significant contribution of BUL in achieving public policies objectives for SD and climate change mitigation. The study underscores that Colombia undervalues the potential of BUL when formulating public policies, overlooking its substantial impact in fulfilling at least 14 of the 17 Sustainable Development Goals (SDGs).
可持续发展包括通过社会、经济和环境三大支柱来提高生活质量。垃圾填埋场沼气利用(BUL)是美国和欧洲一些地区广泛采用的技术。然而,在拉丁美洲和加勒比国家以及某些低收入和中等收入经济体中,关于其执行情况仍然存在误解。本文旨在评估哥伦比亚主要城市的发电潜力,并强调哥伦比亚电力在实现可持续发展和减缓气候变化的公共政策目标方面的重大贡献。该研究强调,哥伦比亚在制定公共政策时低估了可持续发展的潜力,忽视了其在实现17个可持续发展目标(sdg)中的至少14个方面的重大影响。
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引用次数: 0
Microwave-assisted production of alkyl-polyglucoside from Sacha inchi oil and glucose 以核桃油和葡萄糖为原料微波辅助生产烷基多糖苷
Q3 Engineering Pub Date : 2023-08-14 DOI: 10.15446/dyna.v90n227.107807
Uberney Carvajal-Ruiz, Victor Hugo Grisales-Díaz, Carolina Caicedo
En este trabajo se han evaluado diferentes tiempos de reacción de microondas (0, 10, 20 y 30 min) para obtener un alquil poliglucósido de Sacha inchi (Plukenetia volubilis L.) y glucosa utilizando microondas a una potencia de 200 W y una temperatura de 70 °C. Las caracterizaciones de los respectivos resultados se realizaron por Espectroscopia Infrarroja Transformada de Fourier (FTIR) lo que permitió evidenciar el avance de la reacción. La cuantificación de glucosa residual se logró mediante el método colorimétrico de espectrometría mediante reacción con Antrona. El rendimiento de la reacción fue igual al 42.8%. Este estudio constituye un precedente importante para el desarrollo de tensoactivos en condiciones de reacción suaves.
本工作评估了不同的微波反应时间(0、10、20和30 min),以获得Sacha inchi (Plukenetia volubilis L.)的烷基聚糖苷和葡萄糖,微波功率为200 W,温度为70℃。用红外傅里叶变换光谱(FTIR)对各自的结果进行了表征,以证明反应的进展。采用蒽酮反应比色光谱法定量残留葡萄糖。该反应的产率为42.8%。本研究为表面活性剂在温和反应条件下的发展提供了重要的先例。
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引用次数: 0
The evolution and trends of hyperconvergence in the telecommunications sector: a competitive intelligence review 电信行业超融合的演变和趋势:竞争情报审查
Q3 Engineering Pub Date : 2023-08-14 DOI: 10.15446/dyna.v90n227.107360
Gabriel Silva-Atencio, Mauricio Umaña-Ramírez
This research analyzes and identifies the evolution and trends in the telecommunications sector to successfully implement a hyperconverged solution. The approach was qualitative through a document review, exploring the best practices of consulting firms, the technology community, and manufacturers in the sector. The Gartner Magic Quadrant for Hyperconverged Infrastructure in 2022 was used as a basis to achieve this objective. The leading vendors successfully implementing their solutions in the telecommunications sector were identified. Subsequently, the information gathered by consulting firms, the technology community, and experts in the field was contrasted to corroborate the evolution, advantages, and market trends. Finally, it was concluded that organizations' decision-making should consider economic and commercial criteria and evaluate aspects of greater depth and relevance, such as field evidence, technological innovation, and customer experience described by third parties.
本研究分析并确定了电信行业成功实施超融合解决方案的演变和趋势。该方法是定性的,通过文件审查,探索咨询公司、技术社区和该部门的制造商的最佳实践。Gartner的2022年超融合基础设施魔力象限被用作实现这一目标的基础。确定了在电信领域成功实施其解决方案的主要供应商。随后,对咨询公司、技术社区和该领域专家收集的信息进行对比,以证实其演变、优势和市场趋势。最后,得出的结论是,组织的决策应该考虑经济和商业标准,并评估更深入和相关的方面,如现场证据、技术创新和第三方描述的客户体验。
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引用次数: 0
Ensayos experimentales de vigas de hormigón armado con nudos híbridos y caracterización de los resultados 混合结钢筋混凝土梁的实验试验及结果表征
Q3 Engineering Pub Date : 2023-08-14 DOI: 10.15446/dyna.v90n227.108158
Yordy Mieles-Bravo, Stalin Alcívar
En esta investigación se presenta el estudio del comportamiento de vigas de hormigón armado con nudos híbridos en base a un diseño de experimento factorial 23, cuyas variables independientes son: relación momento cortante (M/V), relación entre la altura del nudo y el peralto total de la viga de hormigón armado (hc⁄h ) y el uso de estribos suspensores. Se realizó un ensayo de ocho tipos de especímenes con una réplica, para un total de dieciséis especímenes, más cuatro especímenes de control sin nudos. Los ensayos demuestran que la región perturbada por el nudo no debe utilizarse la teoría de la flexión de vigas. La perturbación genera una disminución de la resistencia seccional, que es posible compensar con los estribos suspensores, que ayudan a controlar la fisuración y trasladar los esfuerzos desde la zona traccionada a la zona comprimida, con un incremento significativo de la resistencia.
的这个研究了钢筋混凝土梁的行为与节23翘曲的混合设计实验的基础上,其独立变量包括:时间边缘的关系(M / V),之间的关系和peralto结总量的钢筋混凝土梁(hc⁄suspensores (h)和使用堆栈。对8种类型的标本进行了复制试验,共16个标本,加上4个无结对照标本。试验表明,受节点干扰的区域不应采用梁的弯曲理论。这种扰动会导致截面强度的降低,这可以通过悬箍进行补偿,悬箍有助于控制开裂,并将应力从拉伸区转移到压缩区,强度显著增加。
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引用次数: 0
Análisis de varianza en manufactura aditiva con impresión 3D. 3D打印增材制造中的方差分析。
Q3 Engineering Pub Date : 2023-08-14 DOI: 10.15446/dyna.v90n227.107364
Jesús Vicente González-Sosa, Sergio Miguel García-Carranco
La manufactura aditiva es una herramienta en el desarrollo e innovación para elaborar productos, por lo que en este trabajo se realiza un análisis, por medio de un modelo estadístico denominado ANOVA, para identificar tendencias de análisis en entornos de ingeniería aplicada y de investigación. Se realizaron las mediciones correspondientes a las piezas elaboradas en tres máquinas de impresión para corroborar la eficiencia de cada equipo, análisis dimensional y, por último, eficiencia en instrumentos de medición, utilizando el procedimiento de ANOVA en dos factores, con ambientes computacionales. El espécimen se fabrica con PLA (Ácido Poliláctico) en equipos por deposición de material fundido (FDM), con relleno del 30%. Como parte de los resultados del análisis se determina la funcionalidad de las impresoras para obtener un espécimen, evaluando desde el punto de vista control de procesos estadísticos e identificando que las impresoras no mantienen condiciones iguales en procesamiento de especímenes de prueba.
增材制造是产品开发和创新的工具,因此在这项工作中,我们通过一个叫做方差分析的统计模型进行分析,以确定应用工程和研究环境中的分析趋势。对三台印刷机上生产的零件进行了相应的测量,以证实每个设备的效率,尺寸分析,最后,测量仪器的效率,使用双因素方差分析程序,与计算环境。该样品由PLA(聚乳酸)在熔融材料沉积(FDM)设备中制备,填充30%。作为分析结果的一部分,确定打印机获取样品的功能,从统计过程控制的角度评估,并确定打印机在处理测试样品时没有保持相同的条件。
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引用次数: 0
Definition of constants & input and output variables for a parametric model of a SI internal combustion engine 常数的定义&SI内燃机参数化模型的输入和输出变量
Q3 Engineering Pub Date : 2023-08-14 DOI: 10.15446/dyna.v90n227.107495
Daniel Esteban Arias-Cuasapaz, Christian Anthony Muñoz-Zabala, Maycol Armando Meneses-Narváez, Doris Lisbeth Suarez-Terán, Erik Paúl Hernández-Rueda
In this article is shown a path to define constants as well as input and output variables when elaborating a parametric model of an internal combustion engine by triggered ignition. There are discussed the different critical factors that should be considered when determining the constants and variables, this includes the engine operating conditions, the properties of the fuel and the emissions generated. In addition, there is also described the methods used to measure and validate these constants, variables, graphic methods and the different type of model founded. It concludes with the revision of the practical applications of the parametric model including its performance and concentration of the CO2 emissions to the environment.
在本文中,展示了一个路径,以定义常数以及输入和输出变量时,阐述了内燃机的参数化模型触发点火。讨论了在确定常数和变量时应考虑的不同关键因素,包括发动机的工作条件、燃料的性质和产生的排放。此外,还描述了用于测量和验证这些常数、变量的方法、图解方法以及所建立的不同类型的模型。最后对参数化模型的实际应用进行了修正,包括参数化模型的性能和二氧化碳排放到环境中的浓度。
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引用次数: 0
Strategic management potential for process alignment in Cuban sports government organizations 在古巴体育政府组织过程对齐的战略管理潜力
Q3 Engineering Pub Date : 2023-08-11 DOI: 10.15446/dyna.v90n227.108146
Yenisey León-Reyes, Maylín Marqués-León, Edmundo Claudio-Pérez, Yasniel Suárez-Sánchez, Paulo Miguel Gumende
The strategic alignment allows coordinating objectives, processes, resources, personnel and critical factors in order to make decision making viable, in addition, it allows aligning processes with the organization's strategy. The objective of the research is: to evaluate the strategic alignment between the processes and the strategic objectives in the Matanzas Provincial Sports Directorate. Tools such as: brainstorming, Kendall's Method, SWOT Matrix, Hierarchical Analytical Process were used. As results, the calculation of the strategic alignment index were obtained with a value of 7.13 and the index of alignment of relevant processes with 6.46, finding that organization is located in the first quadrant of the matrix, which means that the processes of the sports organization are aligned with the strategic objectives, 11 actions are recommended to mitigate the deficiencies detected and to continue with the deployment of the strategy for the Olympic cycle, which shows that the strategic alignment helps collaboration within the sports organization.
战略对齐允许协调目标、过程、资源、人员和关键因素,以使决策可行,此外,它允许将过程与组织的战略对齐。研究的目的是:评估马坦萨斯省体育局的过程和战略目标之间的战略一致性。工具,如:头脑风暴,肯德尔的方法,SWOT矩阵,层次分析法。结果得出战略契合度指数的计算值为7.13,相关过程契合度指数为6.46,发现组织位于矩阵的第一象限,这意味着体育组织的过程与战略目标是一致的,建议采取11项行动来缓解发现的不足,并继续部署奥运周期的战略。这表明战略联盟有助于体育组织内部的协作。
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引用次数: 0
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Dyna-Colombia
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