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Aplicación de enmiendas orgánicas para la recuperación de propiedades físicas del suelo asociadas a la erosión hídrica 有机改良剂在恢复与水土流失有关的土壤物理性质中的应用
IF 0.3 Pub Date : 2017-06-28 DOI: 10.21501/21454086.1907
Diana Maria Delgado-Londoño
It is of great importance to develop projects that identify and evaluate some of the factors which govern the erosion process focussing on soil physics, meaning the quantification of variables such as apparent density, real density, aggregate stability, humidity and organic matter, in studies that propose to find a scale approach in the estimation of soil loss based on the variables mentioned, under the influence of organic amendments. These projects should aim to generate database for future studies in which designs or general equipment simulators to study the interaction of the physical process of soil, rainfall, runoff and infiltration are generated in addition to potentiate the results analysis of the chemical and biological properties associated, experimenting with different variations of parameters such as earrings, dose amendments and mulches, formulating mathematical models to group the important factors considered in the analysis and generalize to any conditions or to a particular area who is having problems of erosion.
开发项目以土壤物理为重点,识别和评估控制侵蚀过程的一些因素,即表观密度、实际密度、骨料稳定性、湿度和有机质等变量的量化,这一点非常重要,因为研究建议在基于上述变量的土壤损失估计中找到一种规模方法,在有机修正案的影响下。这些项目应旨在为未来的研究生成数据库,在该数据库中生成设计或通用设备模拟器,以研究土壤、降雨、径流和渗透的物理过程的相互作用,此外,还应加强对相关化学和生物特性的结果分析,试验不同的参数变化,剂量修正和覆盖,制定数学模型,将分析中考虑的重要因素分组,并推广到任何条件或存在侵蚀问题的特定地区。
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引用次数: 5
Efecto del cultivo de palma de aceite sobre las propiedades físicas del suelo y su relación con la producción y la pudrición de cogollo 油棕栽培对土壤物理性质的影响及其与油棕产量和腐烂的关系
IF 0.3 Pub Date : 2017-06-28 DOI: 10.21501/21454086.2390
Gelber Norberto Gutierrez-Palacio
The research was to objective quantify physical affectation that occurs in soils for the cultivation of oil palm (Elaeis guineensis), for which it carried out a comprehensive campaign of measurements, observations and sampling in the plantation Guaicaramo Ltda., located in the municipality of Barranca de Upia, department of Meta, Colombia, on a cultivated area of approximately 1890 hectares. The qualitative and quantitative analysis of the physical properties of the soils in the zones typical of the crop (street, plate, and zone sticks) served as the basis for the determination of their physical condition and to establish that can be present between these properties, the productivity of the crop and the disease known as bud rot (BRD). The obtained results allowed to identify the development of  compaction phenomena  in different zones of the crop, which determined as a consequence the reduction of the porosity, the reduction of the capacity of gaseous exchange and the reduction of the capacity of infiltration of the soil; all of them, determinant factors of the conditions observed of inappropriate drainage, water excesses, flooding of lots and in some cases of excessive surface runoff; conditions that restrict the efficient utilization of nutrients by plants. Also it was possible to observe the existing relation between the compaction of the soils and the BRD, where the soil acts as an agent who predisposes the plant to contract the disease and not as a causative agent of the same one.
该研究旨在客观量化油棕(Elaeis guineensis)种植过程中土壤中的物理影响,为此在Guaicaramo Ltda种植园开展了全面的测量、观察和抽样活动。位于哥伦比亚梅塔省巴兰卡德乌皮亚市,耕地面积约1890公顷。对该作物典型区域(街道、板地和带状棒地)土壤物理特性的定性和定量分析是确定其物理状况的基础,并确定这些特性、作物生产力和称为芽腐病(BRD)之间可能存在的关系。所获得的结果可以确定作物不同区域的压实现象的发展,这决定了孔隙度的减少,气体交换能力的减少和土壤渗透能力的减少;所有这些因素都是造成排水不当、水过量、地段淹水以及在某些情况下地表径流过多的决定因素;限制植物有效利用养分的条件。此外,还可以观察到土壤压实与BRD之间的现有关系,其中土壤是使植物易患该疾病的一种媒介,而不是同一种疾病的致病媒介。
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引用次数: 0
Aproximaciones al futuro de la robótica en Colombia 哥伦比亚机器人技术未来的展望
IF 0.3 Pub Date : 2017-06-28 DOI: 10.21501/21454086.2398
J. Rodríguez
Robotics is a field that has had a continuous development during the last decades worldwide. Below is a brief account of the different fields of action in which robotics can be applied and then a general overview of the possibilities in Colombia is presented.More than categorical affirmations, it seeks to open a space for discussion and the search for answers. In addition, all cases will refer to applications in the civil, rather than military.
机器人是一个在过去几十年中在全球范围内不断发展的领域。以下简要介绍了机器人技术可以应用的不同领域,然后对哥伦比亚的可能性进行了概述。它不仅仅是明确的肯定,它还寻求开辟一个讨论和寻找答案的空间。此外,所有案件都将涉及民事申请,而不是军事申请。
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引用次数: 0
Innovación imitativa: Un acercamiento desde múltiples perspectivas 模仿创新:多视角方法
IF 0.3 Pub Date : 2017-01-17 DOI: 10.21501/21454086.2025
Miguel David Rojas-López, Manuela Pérez-Rodríguez
La estrategia de innovacion imitativa es utilizada por algunas organizaciones como una fuente de ventaja competitiva en un mercado que evoluciona dia a dia y de forma veloz. El objetivo del presente articulo, es realizar un acercamiento y estudio de las posiciones de diversos autores, y revisar argumentos que posibiliten un espacio para generar el desarrollo de nuevas contribuciones. Se realiza un analisis comparativo entre las hipotesis identificadas, y posteriormente se relacionan dichas hipotesis utilizando algunas variables. Finalmente, se concluye que las estrategias pueden variar en gran medida de una organizacion a otra, principalmente por el hecho de que las dinamicas y relaciones en materia de tecnologia y mercado son singulares dentro de cada compania, pero es necesario que se preparen para enfrentar los cambios del entorno con estrategias de innovacion estructuradas y acordes con su cultura organizacional; ademas se evidencia la necesidad de profundizar en investigaciones y realizar mas estudios practicos referentes al tema, sobretodo en Latinoamerica.
在一个日益迅速发展的市场中,一些组织将模仿创新战略作为竞争优势的来源。这篇文章的目的是对不同作者的立场进行分析和研究,并审查可能有空间产生新贡献的论点。对确定的假设进行了比较分析,然后使用一些变量将这些假设联系起来。最后,得出的结论是,战略因组织而异,主要是因为技术和市场的动态和关系在每个公司内部都是独特的,但有必要通过结构化的创新战略和符合其组织文化的创新战略来应对环境的变化;此外,特别是在拉丁美洲,有必要深入研究并进行更多与这一问题有关的实际研究。
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引用次数: 3
Prototipo de Bicicleta para Transporte Urbano Individual Sostenible 可持续个人城市交通的自行车原型
IF 0.3 Pub Date : 2017-01-17 DOI: 10.21501/21454086.2255
G. Correa-Henao, Álvaro Andrés Ramírez-Piñeros
La movilidad en las ciudades centra la atencion de las politicas promulgadas por gobiernos locales en paises de todo el mundo, teniendo en cuenta el crecimiento exponencial de automoviles y motocicletas con motores de combustion interna durante el siglo XXI. En esa medida, la adaptacion de las infraestructuras que permitan la circulacion de dichos medios de transporte (calles, avenidas, autopistas, puentes, etc.) ha sido muy limitada. Como consecuencia, algunas propuestas para aportar en la optimizacion del transporte de los ciudadanos al interior de las ciudades, consideran una mayor promocion de los medios de transporte publico, asi como el impulso en modalidades de transporte sostenibles y economicas, como las bicicletas. En este articulo se presenta un caso de estudio derivado de la concepcion, construccion y puesta en marcha de un prototipo de bicicleta construida con materiales amigables con el medio ambiente, cuyo impulso responde a la combinacion de potencia generada por la fuerza humana y una rueda electrica motorizada, adaptable a diferentes condiciones geograficas vigentes en la ciudad de Medellin, Colombia.
考虑到21世纪内燃机汽车和摩托车的指数增长,城市流动性是世界各国地方政府颁布的政策的重点。在这方面,允许这些交通工具(街道、大道、高速公路、桥梁等)通行的基础设施的调整非常有限。因此,一些为优化城市内部公民交通做出贡献的建议认为,应进一步推广公共交通工具,并促进自行车等可持续和经济的交通方式。本文介绍了一个由环保材料制成的原型自行车的设计、建造和调试过程中产生的案例研究,该自行车的动力响应于人类力量产生的动力和电动车轮的组合,适用于哥伦比亚麦德林市目前的不同地理条件。
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引用次数: 0
Bloques de concreto con emulsión de parafina 石蜡乳液混凝土砌块
IF 0.3 Pub Date : 2017-01-17 DOI: 10.21501/21454086.2346
H. Cañola, César Echavarría
The walls of the building often exhibit moisture problems as a result of exposure to rain and water absorption in the soil. Unfortunately, conventional concrete blocks purchased on the market have a high coefficient of capillary suction and a low resistance to water penetration. In this research, concrete blocks and cylinders were produced and analyzed experimentally. They were manufactured with washed concrete sand, type I Portland cement, paraffin wax and a 0,40 water-to-cement ( w/c ) ratio by weight. Blocks and cylinders were analyzed first without the addition of paraffin wax and then with the addition of 10 %, 20 %, 30 % and 40 % of paraffin wax by weight of the cement. Capillary water absorption test and resistance to water penetration test were completed. A comparative analysis of the results was performed in order to determine the optimum addition of paraffin wax. It was determined that the blocks with paraffin wax have better properties than conventional blocks without additives. Furthermore, it was concluded that the blocks with paraffin wax reduce moisture problems in the walls since these blocks have a low coefficient of capillary suction
由于暴露在雨水和土壤中的吸水性,建筑物的墙壁经常出现水分问题。不幸的是,在市场上购买的传统混凝土砌块具有高的毛细吸力系数和低的透水阻力。在本研究中,制作了混凝土砌块和圆柱体,并对其进行了实验分析。它们是用洗涤过的混凝土砂、I型硅酸盐水泥、石蜡和按重量计为0.40的水灰比(w/c)制造的。首先在不添加石蜡的情况下分析块体和圆柱体,然后添加按水泥重量计10%、20%、30%和40%的石蜡。完成了毛细管吸水性试验和耐水渗透性试验。对结果进行比较分析,以确定石蜡的最佳添加量。经测定,添加石蜡的嵌段比不添加添加剂的传统嵌段具有更好的性能。此外,得出的结论是,含有石蜡的砌块减少了墙壁中的水分问题,因为这些砌块的毛细吸力系数较低
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引用次数: 2
Pruebas de seguridad: Estudio de herramientas 安全测试:工具研究
IF 0.3 Pub Date : 2017-01-17 DOI: 10.21501/21454086.1957
Yahima Hadfeg, V. Vega
Today, due to the development and advancement of technology, software products are part of our daily lives. These products support almost all our tasks. These tasks can be critical or non-performance, and range from piloting a plane with an autopilot to enabling the operation of ticket dispensers or ATMs. By the criticality of the processes in which they are related, it is necessary that two fundamental characteristics be met; first, having achieved a level of quality and second, being safe products. Software security is a nonfunctional attribute that directly affects product quality. Testing non-functional requirements to verify their performance, as it is done with the functional requirements, is a tedious task. As an alternative to this problem, tools that automatically or semi-automatically perform tests of different types of systems have been developed. The aim of this paper is to identify existing software tools related to testing safety. To achieve this objective a study of the state-of-the-art tools used for security testing is done from 2010 to date.
今天,由于技术的发展和进步,软件产品已经成为我们日常生活的一部分。这些产品几乎支持我们的所有任务。这些任务可以是关键任务,也可以是非性能任务,从使用自动驾驶仪驾驶飞机到启用自动售票机或ATM。根据相关过程的关键性,有必要满足两个基本特征;第一,达到了一定的质量水平,第二,是安全的产品。软件安全性是直接影响产品质量的非功能属性。测试非功能性需求以验证其性能,就像测试功能性需求一样,是一项乏味的任务。作为这个问题的替代方案,已经开发了自动或半自动执行不同类型系统测试的工具。本文的目的是确定与测试安全相关的现有软件工具。为了实现这一目标,从2010年至今,我们对用于安全测试的最先进工具进行了研究。
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引用次数: 0
Algoritmo para el descubrimiento del modelo organizacional utilizando el patrón paralelo segmentación de cauce 利用并行路径分割模式发现组织模型的算法
IF 0.3 Pub Date : 2016-12-28 DOI: 10.21501/21454086.1969
Lester Guerra-Denis, Alex Rivero-Botta, Ronny Álvarez-Pérez, Humberto Díaz-Pando
The progress made with the information technology and communications have resulted in a growth of all data stored and / or exchanged electronically. The process mining techniques are able to extract knowledge from the common-mind records events available in the current information systems. Likewise, parallel processing is a type of information processing, which allows multiple processes to run concurrently, achieving impressive powers of calculation. The work presented below is an algorithm design process mining Organizational Miner using the pipeline parallel pattern, according to its design operations in sequential run independently. The experiments conducted and results obtained with non-parametric tests Mann-Whitney hypothesis that the proposed solution yield decreases execution times relative to its sequential variant.
随着信息技术和通信的进步,所有以电子方式存储和/或交换的数据都在增长。过程挖掘技术能够从当前信息系统中可用的共同意识记录事件中提取知识。同样,并行处理是一种信息处理,它允许多个进程并发运行,从而获得令人印象深刻的计算能力。下面介绍的工作是一个使用管道并行模式挖掘组织Miner的算法设计过程,其设计操作按顺序独立运行。所进行的实验和非参数检验的结果表明,曼-惠特尼假设所提出的解决方案产量相对于其顺序变体减少了执行时间。
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引用次数: 0
Oportunidad para adoptar estrategias de orientación al mercado y la orientación a la gerencia de la cadena de abastecimiento en el sector de retail: un caso de estudio 在零售行业采用市场导向策略和供应链管理导向的机会:一个案例研究
IF 0.3 Pub Date : 2016-12-28 DOI: 10.21501/21454086.2028
Pablo Cesar Ocampo-Vélez, Ricardo Prada-Ospina
El negocio del retail es una de las actividades empresariales mas pujantes y de mayor importancia dentro del comercio en Colombia y el mundo, tanto asi que las principales empresas existentes pertenecen a esta industria. En Colombia, el retail, es muy importante respecto de su aporte a diversos indicadores claves para la sociedad y su economia. Dentro de este contexto es importante senalar los puntos de encuentro entre estas teorias a traves del analisis de un caso de estudio en una tienda que represente este modelo de negocio. Este articulo pretende realizar esa aproximacion a traves de una revision teorica de ambos campos de conocimiento. La investigacion se realizo mediante el metodo empirico, utilizando instrumentos de medicion mediante entrevistas semiestructuradas aplicada a clientes del retail analizado, donde se analizo los criterios como la fidelidad, el servicio al cliente y la distribucion fisica, componentes importantes en el valor agregado del proceso de entrega en el retail. Al final del estudio del caso se encontro que el retail, no solo presenta una fuerte relacion con las estrategias de las hoy denominadas tiendas novedosas de barrio, sino que sus contribuciones son destacables en el mejoramiento de la canasta familiar de los clientes impacto el nivel de servicio. Ademas se observo que el sector debe fortalecer  tanto la estrategia de la orientacion a la cadena de abastecimiento como la orientacion al mercado, considerando  que son maximas que deben aplicarse y mantenerse en el sector, para una mejora del desempeno organizacional, criterio fundamental para la mejora de la competitividad para Colombia. La orientacion al mercado, posee una influencia positiva en la orientacion a la cadena de abastecimiento y a su vez a la gestion de la cadena de abastecimiento, impactando en el desempeno organizacional.
零售业务是哥伦比亚和世界贸易中最具活力和最重要的商业活动之一,以至于现有的主要公司都属于这个行业。在哥伦比亚,零售是非常重要的,因为它对社会和经济的几个关键指标的贡献。在这种背景下,通过对代表这种商业模式的商店的案例研究的分析,突出这些理论之间的交叉点是很重要的。本文试图通过对这两个知识领域的理论回顾来实现这一方法。会通过评估调查方法empirico用工具应用medicion通过访谈、retail测试,测试的客户忠诚、客户服务等标准物理和几何,重要内容的增值retail移交进程。在案例研究的最后,我发现零售不仅与今天所谓的新社区商店的策略有很强的关系,而且他们的贡献在改善客户的家庭篮子影响服务水平方面是显著的。此外,可以观察到部门应加强战略orientacion orientacion等供应链的市场,认为是maximas应保持在desempeno部门,为更好地组织、提高竞争力的关键标准。市场导向对供应链导向和供应链管理有积极的影响,影响组织绩效。
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引用次数: 1
El impacto de la impresión 3D en la joyería 3D打印对珠宝的影响
IF 0.3 Pub Date : 2016-12-28 DOI: 10.21501/21454086.2219
Laura Muñoz-Mesa, Jorge Humberto Sánchez-Trujillo
Through history jewerly has been part of several cultures symbolizing power and elegance. In Colombia, jewerly is a traditional activity inherited from the natives who developed special techniques making it easier for metal work. The jewels are manufactured manually with basic tools, without industrial equipments and specialized technology. The 3D printer arrival makes a huge impact in the production process, improving productivity, a better quality in jewel details and making better assembly-line production and personalization. This allows the manufacture of some jewels that are not possible to handmake. However this technology generate doubts in the jewerly sector and requires an investigation with successful cases, good and bad things related with the 3D printer and its characteristics. With this investigation the jewelers can evaluate the advantages of having a 3D printer with the exact specifications needed in their production line.
纵观历史,珠宝一直是象征权力和优雅的几种文化的一部分。在哥伦比亚,珠宝是当地人的传统活动,他们开发了特殊的技术,使金属加工更容易。珠宝是用基本的工具手工制作的,没有工业设备和专门的技术。3D打印机的到来对生产过程产生了巨大的影响,提高了生产效率,提高了珠宝细节的质量,实现了更好的装配线生产和个性化。这允许制造一些不可能手工制作的珠宝。然而,这项技术在珠宝行业产生了质疑,需要调查成功的案例,与3D打印机及其特性相关的好与坏的事情。通过这项调查,珠宝商可以评估拥有生产线所需的精确规格的3D打印机的优势。
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引用次数: 6
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Revista Digital Lampsakos
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