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Bio-Detergent oil derivative used fryingBio-detergente derivado de aceite usado de fritura
(Universidad Nacional Abierta y a Distancia, UNAD, 2011-04-13)
Currently, the global trend towards sustainable development for environmental friendly products such as biosurfactants shows an excellent performance. Anionic surface active agents can be produced from renewable natural raw materials such as vegetable oils mainly derived from palm oil. Methyl ester sulfonate is an active component of highly biodegradable detergents, one advantage compared with detergents derived from ...
Acidity Of Rain And Relationship With the Atmospheric Conditions Prevailing In the Town of The Candelaria - Bogotá D.C.Diagnóstico de Lluvia Ácida y Condiciones Meteorológicas Asociadas en el Barrio La Candelaria – Bogotá D.C.
(Universidad Nacional Abierta y a Distancia, UNAD, 2011-04-13)
This project was developed in order to establish the facts about the acidity of rain in the town of La Candelaria and to study further the relationship of this phenomenon with the atmospheric conditions prevailing in this sector of the city of Bogota D.C. At the start of the study it was necessary to design and install a network of sampling stations at strategic sites in the locality; selected according to specific ...
Multivariate Statistical Analysis: a Strategic Tool for Quality and Processes Control in Food IndustryAnálisis estadistico multivariado como herramienta Estratégica para el Control de procesos de calidad en la industria agroalimentaria
(Universidad Nacional Abierta y a Distancia, UNAD, 2011-04-13)
The use of multivariate statistical techniques for quality and process control in the food industry has been growing significantly since the mid-seventies, as a result of the informatics revolution which facilitated the analysis of large data sets. Unlike univariate methods of data exploration, multivariate statistics uses as a major pillar the analysis of information described by three or more variables that can be ...
Equipment for anionic surfactant manufacture from oil palmMaquinaria usada para la elaboración de surfactantes aniónicos derivados del aceite de palma
(Universidad Nacional Abierta y a Distancia, UNAD, 2010-05-08)
In the present study is performed a review of the current processes of sulfonation of various raw materials for determine the process conditions in order to present the state of the art of sulfonation processes for the manufacture of anionic surfactants. There has been a scientific literature with emphasis on several aspects: Technology, sulfonation reactors and operating conditions in the process, analytical techniques ...
Estimating the Theoretical Value for LAN Network Throughput Based Power Line Communications Technology Under the Homeplug 1.0 StandardEstimación del Valor Teórico para el Throughput en Redes LAN Basadas en Tecnología Power Line Communications Bajo el Estándar Homeplug 1.0
(Universidad Nacional Abierta y a Distancia, UNAD, 2013-06-02)
Power Line Communications (PLC) refers to a group of technologies that allow to establish communication processes under the use of the grid as a physical means of transmission. The use of the grid as a physical means of transmission of information is not a new idea. Until a few years ago, the use of PLC had been limited to the implementation of solutions of control, automation and monitoring of sensors; which did not ...
Design and Construction of Equipment for Applying the Geophysical Prospecting Method Electric TomographyDiseño y Construcción de Equipo para Realizar Prospección Geofísica Aplicando el Método VDE Tomografía Eléctrica
(Universidad Nacional Abierta y a Distancia, UNAD, 2013-06-02)
Outlines the procedure for the design and construction of electric equipment for geophysical prospecting through electrical tomography method. The team is of average power, ensuring exploration depths quite suitable for applications and commercial and geotechnical studies. The device is essentially a DC voltage source of 500 volts that is able to provide a maximum current of 1 amp. It also contains a small charge current ...
Adaptation Method Bligh & Dyer a Lipid Extraction of Colomb ian Microalgas Biodiesel Production for Third GenerationAdaptación del Método Bligh & Dyer a la Extracción de Lípidos de Microalgas Colombianas para la Producción de Biodiesel de Tercera Generación
(Universidad Nacional Abierta y a Distancia, UNAD, 2012-06-02)
In the biodiesel production process from microalgae, the cell disruption and lipid extraction stages are important for obtaining triglycerides that can be transesterified to biodiesel and glycerol. In this work, the Bligh & Dyer method was adapted for lipid extraction from native microalgae using organosolv pretreatment or acid hydrolysis as cell disruption mechanism for improve the extraction process. Chloroform ...
Addition of Bacillus Coagulans (Lactba cillus Esporogenes) to a Powder Mixture Based Instant Cerea lsAdición de Bacillus Coagulans (Lactbacillus Esporogenes) a una Mezcla en Polvo a Base de Cereales Instantáneos
(Universidad Nacional Abierta y a Distancia, UNAD, 2012-06-02)
This paper discloses the results of the application of a probiotic infant formula based instant cereals through accelerated life assessment. This process is carried out at laboratory level, based on the assay technique / error.
The selected strain of probiotic, Lactobacilluis (Bacillus coagulans), must comply with the following characteristics: be of human origin, survival during gastric transit, bile salts tolerate ...
Design and Construction Of a Prototype Universal Dynamic Electrocardiography “Holter” of Three Channels With Electronic Interface for Any Virtual Instrumentation PlatformDiseño y Construcción de un Prototipo de Electrocardiografía Dinámica “Holter” Universal de Tres Canales con Interfaz Electrónica para Cualquier Plataforma de Instrumentación Virtual
(Universidad Nacional Abierta y a Distancia, UNAD, 2013-06-02)
This paper describes the design and construction of a portable electrocardiogram (Holter) for the acquisition and storage of the first and second bipolar derivation ECG and precordial lead. The prototype built has the advantage over similar commercial equipment, that downloads the stored signals in analog form, which lets you use any virtual instrumentation platform, such as LabVIEW, BIOPAC or otherwise, and does not ...
Expertik: Experience with Artificial Intelligence and Mobile ComputingExpertik: una Experiencia con Inteligencia Artificial y Computación Móvil
(Universidad Nacional Abierta y a Distancia, UNAD, 2013-06-02)
This article presents the experience in the development of services based in Artificial Intelligence, Service Oriented Architecture, mobile computing. It aims to combine technology offered by mobile computing provides techniques and artificial intelligence through a service provide diagnostic solutions to problems in industrial maintenance. It aims to combine technology offered by mobile computing and the techniques ...