Metabuscador

Filtrado por:

Temas

Idiomas

Recursos

Unversidad Nacional de La Plata (117)
Ingeniería e investigación (62)
RUA Docencia (46)
Revistas UNAM (23)
Bellaterra: Journal of teaching and Learning Language and Literature (15)

Más...

Año

2013 (21)
2011 (9)
2010 (7)
2009 (7)
2008 (21)
2005 (22)
Más...

Aproximadamente 301 registro(s) hasta el momento: (datos)

Mostrar 10 | 50 | 100 resultados por página

Recurso libre

Hazus application to Oslo municipality: data description
Molina Palacios, Sergio - Lindholm, Conrad D.

Formato:	info:eu-repo/semantics/workingPaper
Enlaces:	In order to apply HAZUS methodology to a real seismic risk study outside USA, the Oslo municipality was chosen as study region. The civil institutions were asked for neccesary information and we were provided with different ASCII and Arcview files…
Fecha:	2007-10-30
Recurso:	RUA Docencia

Recurso libre

Riskicg v2.4: user and technical manual
Molina Palacios, Sergio - Lindholm, Conrad D.

Formato:	info:eu-repo/semantics/workingPaper
Enlaces:	A Matlab-based seismic risk tool has been developed and named RISKICG. This tool is still in development, but it can provide damage results and economic losses for the general building stock of a city or country and also for the…
Fecha:	2007-10-30
Recurso:	RUA Docencia

Recurso libre

State of the art in seismic vulnerability
Molina Palacios, Sergio

Formato:	info:eu-repo/semantics/workingPaper
Enlaces:	When performing vulnerability analysis and in absence of statistical data about vulnerability of some types of widespread buildings, unique structures, historical monuments etc, the development of numerical methods and approaches of evaluation and identification of vulnerability grade is shown as…
Fecha:	2007-10-30
Recurso:	RUA Docencia

Recurso libre

Experimental data on SOA formation from mixtures of anthropogenic and biogenic organic compounds, Experimental data on SOA formation from mixtures of anthropogenic and biogenic organic compounds
García Vivanco, Marta - Santiago, Manuel; CIEMAT - Sánchez, Miguel; CIEMAT - Clavero, Mª Ángeles; CIEMAT - Borrás, Esther; CEAM - Ródenas, Milagros; CEAM - Alacreu, Francisco; CEAM - Vázquez, M.; CEAM - Clemente, E.; CEAM - Porras, R.; CEAM - Muñoz, A.; CEAM - Stein, Ariel; NOAA

Formato:	,
Enlaces:	Secondary organic aerosols (SOA) constitute a significant fraction of the atmospheric particulate matter. Theses particles are formed as a consequence of the oxidation reaction of certain organic gases that leads to the formation of low-volatility compounds. As for other pollutants,…
Fecha:	2012-12-14
Recurso:	Revistas UNAM

Recurso libre

Study of near surface boundary layer characteristics during pre-monsoon seasons using micrometeorological tower observations, Study of near surface boundary layer characteristics during pre-monsoon seasons using micrometeorological tower observations
Chaudhuri, Sutapa; Department of Atmospheric Sciences, University of Calcutta, India - Middey, Anirban; Department of Atmospheric Sciences, University of Calcutta, India

Formato:	,
Enlaces:	Studying the boundary layer is imperative because severe weather in this portion of the atmosphere impacts on environment and various facets of national activities and affects the socioeconomic scenario of a region. Near surface boundary layer characteristics are investigated through…
Fecha:	2012-12-14
Recurso:	Revistas UNAM

Recurso libre

Computing support for virtual communities of practice
Casalini, María Clara - Estevez, Elsa Clara - Janowski, Thomas

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This document describes a research and development project - Semantic Web and Cooperative Problem Solving for Online Communities of Practice. The aim of the project is to build a system supporting Cooperative Problem Solving within the framework of online Communities…
Fecha:	2012-09-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

A functional approach for in line analytical processing
Necco, Claudia Mónica - Quintas, Luis - Nuno Olivera, J.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper describes an approach to On Line Analytical Processing (OLAP), expresed in the declarative programming paradigm. We define a collection of functions that capture some of the functionality currently provided by multidimensional database product. This is done by defining…
Fecha:	2012-10-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Classification rules obtained from dynamic self-organizing maps
Hasperué, Waldo - Lanzarini, Laura Cristina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	La obtención de conocimiento a partir de la información existente es un proceso no trivial que consiste en identificar patrones válidos, novedosos, potencialmente útiles y comprensibles a partir de los datos disponibles. La Minería de Datos es el área de…
Fecha:	2012-10-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Towards the verification of RAISE specifications through Model Checking
Perna, Juan Ignacio - George, Chris W.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ensuring the correctness of a given software component has become a crucial aspect in Software Engineering and the Model Checking technique provides a fully automated way to achieve this goal. In particular, the usage of Model Checking in formal languages…
Fecha:	2012-09-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Messaging infrastructure for Electronic Government: background, rationale, objectives
Estevez, Elsa Clara - Janowski, Thomas - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Electronic Government applications aim to deliver efficient, seamless, customer-focused services to the public using various distribution channels. One of challenges in building such applications is the requirement to rely upon preexisting, often heterogeneous government applications. In order to enable communication…
Fecha:	2012-09-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

The software architecture role in agile methodologies
Anacleto, Valerio Adrián

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The software architecture role in agile methodologies is not sufficiently documented or formalized by means of a process consistent with the philosophy. The current work’s contributions are: 1) Defining guidelines to implement architecture practices in an agile way and so…
Fecha:	2012-10-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Nineteen sixties history of data base management
Olle, T. William

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Data base management evolved during the sixties and seventies. The evolution period was protracted. Many driving forces impacted the evolution and it is the aim of this paper to analyze these driving forces (some technical and some political) and to…
Fecha:	2012-11-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Data modeling dealing with uncertainty in fuzzy logic
Urrutia Sepúlveda, Angélica - Galindo, José - Jiménez, Leoncio - Piattini Velthuis, Mario

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper shows models of data description that incorporate uncertainty like models of data extension EER, IFO among others. These database modeling tools are compared with the pattern FuzzyEER proposed by us, which is an extension of the EER model…
Fecha:	2012-11-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Evolution of product line architectures
Amaolo, Marcelo Paulo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Product-line architectures, i.e. a software architecture and component set shared by a family of products, represents a promising approach to achieving reuse of software. Several companies are initiating or have recently adopted a product-line architecture. However, little experience is available…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Integrating the development of data mining and data warehouses via model-driven engineering
Zubcoff Vallejo, José Jacobo - Pardillo Vela, Jesús - Mazón López, José Norberto - Trujillo Mondéjar, Juan Carlos

Formato:	info:eu-repo/semantics/article
Enlaces:	Data mining is one of the most important analysis techniques to automatically extract knowledge from large amount of data. Nowadays, data mining is based on low-level specifications of the employed techniques typically bounded to a specific analysis platform. Therefore, data…
Fecha:	2012-03-08
Recurso:	RUA Docencia

Recurso libre

16.

Collaborative problem solving in virtual communities of practice
Casalini, María Clara - Estevez, Elsa Clara - Janowski, Thomas

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The paper presents a case study illustrating a collaborative problem solving process in Virtual Communities of Practice. The process relies on the existence of an underlying shared knowledge base – a repository of resources, and is carried out collaboratively by…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Defining the proxy design pattern using UML profile
Garis, Ana Gabriela - Riesco, Daniel Eduardo - Montejano, Germán Antonio

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Today software solutions are often modeled using UML. Design patterns are frequently instantiated within these particular solutions. However, in several situations, UML is not expressive enough to describe them properly. UML profiles extend UML syntax and semantic in order to…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Model checking RAISE applicative specifications
Perna, Juan I. - George, Chris W.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ensuring the correctness of a given software component has become a crucial aspect in Software Engineering and the Model Checking technique provides a fully automated way to achieve this goal. In particular, the usage of Model Checking in formal languages…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Use of asynchronous JavaScript and XML for comparative market analysis
Cáseres, Germán - Delía, Lisandro - Thomas, Pablo Javier - Ramón, Hugo Dionisio - Bertone, Rodolfo Alfredo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Generally, the interactivity provided by web applications is carried out through surfing, as a result of a server’s response at the request of a workstation. This is an essential characteristic of this type of software, although in some circumstances it…
Fecha:	2012-10-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Combine vector quantization and support vector machine for imbalanced datasets
Yu, Ting - Debenham, John - Jan, Tony - Simoff, Simeon

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In cases of extremely imbalanced dataset with high dimensions, standard machine learning techniques tend to be overwhelmed by the large classes. This paper rebalances skewed datasets by compressing the majority class. This approach combines Vector Quantization and Support Vector Machine…
Fecha:	2012-11-08
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

A language processing tool for program comprehension
Berón, Mario - Henriques, Pedro Rangel - Varanda Pereira, Maria João - Uzal, Roberto - Montejano, Germán Antonio

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Program Comprehension is a Software Engineering discipline which aims to understand computer code written in a high-level programming language. Program Comprehension is useful for reuse, inspection, maintenance, reverse engineering and many other activities in the context of Software Engineering. In…
Fecha:	2012-10-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Design criteria for the development of an institutional learning object repository
Godoy, Roberto - Minni, Hugo - Zarza, Gonzalo - Loyarte, Horacio

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The production of educational contents in academic environments has been traditionally developed without an integral plan which allows their adequate distribution and access. In addition, it produces effort duplication and misuse of resources. As a possible solution, this work proposes…
Fecha:	2012-10-16
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

Evaluation of 3D image-treatment algorithms applied to optical-sectioning microscopy
Vicente, Nathalie B. - Diaz Zamboni, Javier E. - Adur, Javier F. - Casco, Víctor

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	La información extraída de especimenes biológicos es inherentemente tridimensional. Los datos tridimensionales (3D) permiten un mejor entendimiento de las estructuras y los eventos biológicos, comparados con sus proyecciones bidimensionales (2D), aunque a veces son más difíciles de manejar. Esto explica…
Fecha:	2012-10-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Skeletonization of sparse shapes using dynamic competitive neural networks
Hasperué, Waldo - Corbalán, Leonardo - Lanzarini, Laura Cristina - Bria, Oscar N.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	La detección de regiones y objetos en imágenes digitales es un tema de suma importancia en la resolución de numerosos problemas correspondientes al área de reconocimiento de patrones. En esta dirección los algoritmos de esqueletización son una herramienta muy utilizada…
Fecha:	2012-10-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Discourse structuring of dynamic content
Bouayad-Agha, Nadjet - Wanner, Leo - Nicklass, Daniel

Formato:	info:eu-repo/semantics/article
Enlaces:	Uno de los desafíos de la Generación de Lenguaje Natural es la adaptación de la estructura y las palabras de la salida lingüística a la habilidad del usuario, el contenido, el género apropiado, el estilo, etc. Nos centramos en la…
Fecha:	2007-11-26
Recurso:	RUA Docencia

Recurso libre

26.

Exploring feature set combinations for WSD
Agirre Bengoa, Eneko - López de Lacalle Lekuona, Oier - Martínez Iraola, David

Formato:	info:eu-repo/semantics/article
Enlaces:	Este trabajo explora la división de atributos en grupos para poder mejorar la desambiguación de acepciones (WSD) mediante la combinación de sistemas entrenados en cada uno de estos grupos de atributos. Los resultados conseguidos demuestran que sólo k-NN es capaz…
Fecha:	2007-11-27
Recurso:	RUA Docencia

Recurso libre

27.

Category-based language models in a Spanish spoken dialogue system
Justo Blanco, Raquel - Torres Barañano, María Inés - Benedí Ruiz, José Miguel

Formato:	info:eu-repo/semantics/article
Enlaces:	El objetivo principal de este trabajo es comprobar si un modelo de lenguaje basado en categorías puede mejorar el rendimiento de un sistema de diálogo, de la misma forma que lo hace para aplicaciones que utilizan bases de datos no
Fecha:	2007-11-19
Recurso:	RUA Docencia

Recurso libre

28.

A Semi-Automatic Method for Ontology Mapping
Perez, Laura Haide - Cechich, Alejandra - Buccella, Agustina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ontology mapping involves the task of finding similarities among overlapping sources by using ontologies. In a Federated System in which distributed, autonomous and heterogeneous information sources must be integrated, ontologies have emerged as tools to solve semantic heterogeneity problems. In…
Fecha:	2012-09-28
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Developing a Repository of Knowledge for virtual communities with semantic web technologies
Casalini, María Clara - Estevez, Elsa Clara - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The appearance and continuous growth of virtual communities on the web imposes the challenge of coping with the large amount of information and knowledge these communities produce. The Semantic Web with its set of standards and technologies provides the basic…
Fecha:	2012-09-28
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

Program slicing based on sentence executability
Cavadini, Salvador V. - Cheda, Diego A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	We present point slicing, a new slicing technique for imperative programs that gives an answer to the question Which sentences can be executed if sentence p is executed?, very common in program testing, debugging, and understanding tasks and, as far…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Software projects effort estimation using “use case points” method in the context of Project Management Body of Knowledge
Montejano, Germán Antonio - Uzal, Roberto - Riesco, Daniel Eduardo - Debnath, Narayan C.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	As a contribution to consider software projects to be risk investments, it is important the full standardization of either the planning methodology (as a subset of project management methodology) and the effort estimation method. We think there is important and…
Fecha:	2012-10-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Caracterización mecánica de morteros de cemento Portland con breas de petróleo y de alquitrán de carbón, Mechanical characterization of Portland cement mortars containing petroleum or coal tar
Alcaide Romero, Juan - García Alcocel, Eva María - Vilaplana Ortego, Eduardo - Cazorla Amorós, Diego - Garcés Terradillos, Pedro

Formato:	info:eu-repo/semantics/article
Enlaces:	En este artículo se presentan datos experimentales de resistencia a flexión y a compresión de morteros de cemento Portland con adición y sustitución de breas de petróleo y de alquitrán de carbón, que son subproductos de la industria del carbón…
Fecha:	2012-01-19
Recurso:	RUA Docencia

Recurso libre

33.

A UML Profile for Documenting the Component-and-Connector Views of Software Architectures
Anacleto, Valerio Adrián

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In this paper, we present a UML profile and a group of UML patterns for documenting the component-and-connector views of software architectures [8]. They facilitate the creation of the component and connector viewtype in any UML 2.0 tool with a…
Fecha:	2012-09-28
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Nomenclatural changes in Apteranthes Mikan (Asclepiadoideae, Apocynaceae)
Crespo Villalba, Manuel Benito

Formato:	info:eu-repo/semantics/article
Enlaces:	El género Apteranthes Mikan se considera constituido por unos ocho táxones, en su mayoría distribuidos por el norte de África. Sin embargo, algunos de sus componentes han sido infravalorados en las revisiones más recientes del género, pese a estar bien…
Fecha:	2012-05-11
Recurso:	RUA Docencia

Recurso libre

35.

Fauna and distribution of Bulgarian Phygadeuontini (Hymenoptera: Ichneumonidae: Cryptinae), Fauna y distribución de los Phygadeuntonini (Hymenoptera: Ichneumonidae: Cryptinae)
Kolarov, Janko - Bordera Sanjuán, Santiago

Formato:	info:eu-repo/semantics/article
Enlaces:	Faunistic data of 64 species of Phygadeuontini from Bulgaria are reported. Of them, 27 species are new records for Bulgarian fauna. Zoogeographical considerations about all listed species are given., En el presente artículo se ofrecen nuevos datos faunísticos sobre 64…
Fecha:	2012-07-24
Recurso:	RUA Docencia

Recurso libre

36.

Sistema automático de adquisición de datos para un medidor de deformación
Espinosa Ramón, Alfonso - Flores Cifuentes, Fernando

Formato:	Article
Enlaces:	El presente artículo describe un sistema de adquisición de datos para un medidor de deformación. Se presenta el análisis del diseño de la circuitería y la programación, los resultados obtenidos y finalmente algunas conclusiones.
Fecha:	2007-05-23
Recurso:	Escuela Politécnica Nacional

Recurso libre

37.

Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent, Remoción de Carbono Orgánico Total en aguas residuales provenientes de laboratorio químico, empleando reactivo Fenton
Martínez Ávila Oscar Mauricio ; Universidad Nacional de Colombia - sede Bogotá - Franco José Herney Ramírez ; Universidad Nacional de Colombia - Toledo Reyes Magda Lorena ; Universidad Nacional de Colombia

Formato:	, , ,
Enlaces:	Treating industrial wastewater represents a serious problem nowadays; it requires a strong understanding of the particular systems and (in most of cases) ad hoc solutions. This work describes the use of Fenton’s reagent (reaction between H2O2 and Fe(II)) for removing…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

38.

How in-training Secondary Education teachers think: avenues for intervention, Pensamiento y formación del profesorado de Educación Secundaria: vías de intervención
Pérez Sánchez, Antonio Miguel - Gilar Corbi, Raquel - González Gómez, Carlota

Formato:	info:eu-repo/semantics/article
Enlaces:	Introduction. The aim of this research is to analyse the thinking of teachers-in-training for compulsory secondary education, in order to facilitate the work of education and guidance at secondary schools. Method. The participants were 265 students in the CAP program…
Fecha:	2012-05-18
Recurso:	RUA Docencia

Recurso libre

39.

Four new additions to the araneofauna of Guanajuato state, Mexico
ARENAS-MONROY,José Carlos - GARCÍA-BALDERAS,Christian Martin - LUCIO-PALACIO,Cesar Raziel

Formato:	journal article
Enlaces:	Se presentan los datos de recolecta de cuatro nuevos registros de arañas para el estado de Guanajuato: Argiope argentata (Fabricius 1775), Castianeira dorsata (Banks 1898), C. plorans (O.P.Cambridge 1898) y Selenops gracilis Muma 1953. Adicionalmente, se proporcionan algunos datos de…
Fecha:	2012-08-01
Recurso:	SCIELO

Recurso libre

40.

Editorial, Editorial
Narváez Rincón Paulo César ; Universidad Nacional de Colombia

Formato:	, , ,
Enlaces:	Este número, el segundo del volumen 33, incluye doce artículos que, como en el número anterior, corresponden a áreas diferentes de la ingeniería. El medio ambiente, los materiales, sismicidad y la ingeniería de software son algunos de los temas que…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

41.

Ceramic bricks made from municipal solid waste incineration-derived clay and ashes: a quality study, Estudio de calidad de ladrillos cerámicos producidos con mezclas de arcilla y cenizas de incineración de residuos sólidos municipales
García Ubaque César Augusto ; Universidad Distrital Francisco José de Caldas - González Hässig Andrés ; Regeneración Ltda. - Vaca Bohórquez Martha Lucía ; Adviser

Formato:	, , ,
Enlaces:	This paper presents analytical data from tests on bricks made from different clay/ash mixtures. The ashes used were obtained from a Hoffmann-type brick-making furnace equipped for coal and municipal solid waste co-firing. The bricks were physically and chemically characterised and…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

42.

LDPE and PP thermal diffusivity in molten state, Difusividad térmica de mezclas de LDPE y PP en estado fundido
Yánez Genhli ; Universidad Nacional de Colombia - Rodríguez Pérez Miguel Ángel ; Universidad de Valladolid - Almanza Ovidio ; Universidad Nacional de Colombia

Formato:	, , ,
Enlaces:	Experimental results are reported for measuring the thermal diffusivity of two polymer species: low density polyethylene (LDPE) and polypropylene (PP). Measurements were taken in unsteady state heat flow conditions around the materials' melting temperature, using a device specially constructed for…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

43.

AlN film deposition as a semiconductor device, Deposición de películas de AlN como dispositivos semiconductores
Caicedo Julio Cesar ; Universidad del Valle - Pérez Taborda Jaime Andrés ; Universidad Tecnológica de Pereira - Chaparro Willian Aperador ; Universidad Militar Nueva Granada

Formato:	, , ,
Enlaces:	AlN films were deposited by pulsed laser deposition (PLD) using an Nd: YAG laser (λ = 1064 nm). The films were deposited in a nitrogen atmosphere as working gas; the cathode was an aluminium high purity (99.99%) target. The films…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

44.

Characterising μ-AlTiN coating and assessing its performance during Ti-6Al-4V milling, Caracterización y desempeño del recubrimiento μ-AlTiN durante el fresado del Ti-6Al-4V
Moreno Téllez Carlos Mauricio ; Universidad Pedagógica y Tecnológica de Colombia - UPTC - Sánchez José Manuel ; Centro de Estudios e Investigaciones Técnicas de Guipúzcoa and Universidad de Navarra - Higuera Cobos Oscar Fabián ; Universidad Pedagógica y Tecnológica de Colombia - UPTC

Formato:	, , ,
Enlaces:	This study investigated the mechanical properties and performance of μ-AlTiN coating deposited by PVD cathodic arc technique for a specific Al0, 67Ti0, 33N composition deposited on a WC-Co and AISI D2 steel substrate. The structure of the coating was analysed…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

45.

A review of conceptual transparency in US and Colombian seismic design building codes, Revisión de la Transparencia Conceptual en los Reglamentos de Diseño Sísmico de Edificios en EU y Colombia
Carrillo Julian ; Universidad Militar Nueva Granada - Blandón Valencia John ; Universidad Nacional de Colombia - sede Medellín - Rubiano Astrid ; Universidad Militar Nueva Granada

Formato:	, , ,
Enlaces:	The goal of re-examinination of seismic design codes is aimed at making their provisions as transparent as possible for users so that the design would be clear and enriching for structural engineers. This paper presents a transparency evaluation of the…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

46.

Urban air pollution in school-related microenvironments in Bogota, Colombia, Caracterización de la Calidad del Aire en Microambientes de Colegios Distritales en Bogotá
Franco Juan Felipe ; Universidad EAN - Rojas Néstor Yesid ; Universidad Nacional de Colombia - Sarmiento Olga Lucía ; Universidad de los Andes - Behrentz Eduardo ; Universidad de los Andes

Formato:	, , ,
Enlaces:	Particle-related pollution (PM10, PM2.5 and soot) was measured in both indoor and outdoor microenvironments at four public elementary schools in Bogota, Colombia. Three of these schools were located alongside major urban roads in which different types of public transit systems…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

47.

Developing high-performance concrete incorporating highly-reactive rice husk ash, Producción de Concretos de Alto Desempeño Mediante la Incorporación de Ceniza de Cascarilla de Arroz de Alta Reactividad
Salas Andrés ; Universidad Nacional de Colombia - Delvasto Silvio ; Universidad del Valle - Mejía de Gutiérrez Ruby ; Universidad del Valle

Formato:	, , ,
Enlaces:	The aim of this study is to present results of an investigation about the developing of a highperformance concrete (HPC) using a highly reactive pozzolan made from chemically treated rice husk ash (ChRHA) prepared by a chemical-thermal attack to the…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

48.

An optimal algorithm for estimating angular speed using incremental encoders, Un algoritmo óptimo para la aproximación de la velocidad angular utilizando encoders
Rairán Antolines José Danilo ; Universidad Distrital Francisco Jose de Caldas

Formato:	, , ,
Enlaces:	This paper proposes a new algorithm using signals from an incremental encoder for estimating a rotating shaft's speed. This algorithm eliminated the oscillations appearing in classical fixed-time and fixed-space algorithms, even when speed was constant. A fixed-time algorithm measures angular…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

49.

Using radio frequency and ultrasonic antennas for inspecting pin-type insulators on medium-voltage overhead distribution lines, Aplicación de antenas de radiofrecuencia y ultrasónica para la inspección de los aisladores de tipo pin en líneas aéreas de distribución de media tensión
Lefort Borges Cícero ; High Voltage Laboratory of the Federal University of Itajubá (LAT-EFEI) - Barreira Martinez Manuel Luís ; High Voltage Laboratory of the Federal University of Itajubá (LAT-EFEI)

Formato:	, , ,
Enlaces:	This paper summarises the activities undertaken when using antennas (ultrasound and radiofrequency) for identifying insulators in pre-failure state by detecting the noise emitted by the distribution line and correlating this with these insulators (porcelain pin type) dielectric breakdown. This has…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación

Recurso libre

50.

Towards a framework for deriving platform-independent model-driven software product lines, Hacia un Marco de Trabajo para Derivar Líneas de Producto de Software Dirigidas por Modelos Independientes de la Plataforma
Paz Andrés ; Universidad ICESI - Arboleda Hugo ; Universidad ICESI

Formato:	, , ,
Enlaces:	Model-driven software product lines (MD-SPLs) are created from domain models which are transformed, merged and composed with reusable core assets, until software products are produced. Model transformation chains (MTCs) must be specified to generate such MD-SPLs. This paper presents a…
Fecha:	2013-08-14
Recurso:	Ingeniería e investigación