Research papers published in 2005
Browse publicly accessible academic documents published in 2005.
3227 documents
Fluorene and phenanthrene uptake by Pseudomonas putida ATCC 17514: Kinetics and physiological aspects
Pseudomonas putida ATCC 17514 was used as a model strain to investigate the characteristics of bacterial growth in the presence of solid fluorene and phenanthrene. Despite the lower water-solubility of phenanthrene, P. putida degraded this polycyclic aromatic hydrocarbon (PAH)…
DOI: 10.1002/bit.20377
A partial factors methodology for structural safety assessment in non-linear analysis
In the present structural codes the safety verification is based on a linear analysis of the structure and the satisfaction of ultimate and serviceability limit states, using a semi-probabilistic security format through the consideration of partial safety factors, which affect…
Operations and control of unmanned underwater vehicles
Operations and control of unmanned underwater vehicle systems are discussed in terms of systems and technologies, vehicles, operational deployments and concepts of operation. The notions underlying the specification of single vehicle operations are contrasted to new concepts of…
Distribución lateral de velocidades en cauces naturales
En este trabajo se presentan los resultados de la aplicación de dos modelos para la predicción de la distribución lateral de velocidades en cinco casos de cauces naturales. Los modelos considerados son el Método del Canal Dividido (DCM) a través de su implementación en el…
Valoraciones del alumnado universitario sobre las pruebas objetivas
El estudio se centra en el uso de las pruebas objetivas para la evaluacion del aprendizaje universitario. Tomando como referencia las ventajas e inconvenientes señaladas en la literatura, hemos recogido las valoraciones que el alumnado de diferentes titulaciones universitarias…
Sandwich damping treatments with multi-layer and multi-material viscoelastic cores
The application of a viscoelastic core inside a sandwich plate provides an efficient dissipative mechanism able to introduce high levels of damping in light and flexible structures. Due to the decoupling effect produced by the soft viscoelastic core, the flexural stiffness of…
WLAN throughput improvement via distributed queuing MAC
This paper analyzes the performance of a MAC scheme for wireless local area networks (WLANs) that makes use of distributed queues to improve radio channel utilization. Analytical values for the maximum throughput performance are derived as a function of the system parameters…
Hacia la separación de enlaces en sistemas web
El volumen de negocio que se genera en la red es cada vez mayor. Las aplicaciones web tienen características diferenciadoras con respecto a las aplicaciones tradicionales. Por ello, ha surgido una nueva disciplina conocida como ingeniería web. Este artículo propone un enfoque…
A probabilistic analysis of traffic separation in shared Ethernet systems using the h-BEB collision resolution algorithm
Ethernet is a widely used network technology, with a Medium Access Control protocol based on the collision detection between randomly initiated transmissions. It has a non-deterministic behaviour, due to the use of a probabilistic contention resolution algorithm, which impairs…
Determinação da performance empresarial - Aplicação DEA
A avaliação das organizações e a determinação do desempenho, obtido pelo exercício da gestão, tem sido uma preocupação constante de gestores e accionistas, embora com objectivos diversos. Nos dias de hoje, a questão coloca-se com maior acuidade quer pela competitividade…
Electronic state characterization of SiOx thin films prepared by evaporation
SiOx thin films with different stoichiometries from SiO1.3 to SiO1.8 have been prepared by evaporation of silicon monoxide in vacuum or under well-controlled partial pressures of oxygen (P<10–6 Torr). These thin films have been characterized by x-ray photoemission and…
DOI: 10.1063/1.1927278
El Quijote: dialogismo y verosimilitud
El presente ensayo demuestra cómo El Quijote cumple a la perfección con los requisitos del modelo novelístico que Mijail Bajtin consideraba más evolucionado, clásico y puro: el que realiza todas las posibilidades literarias de la palabra novelesca plurilingüe y con diálogo…
DOI: 10.4067/S0718-22952005000200002
O corpo e o silêncio das emoções: estudo da alexitimia na anorexia nervosa
DOI: 10.34626/nkd9-gy22
An Approach to Reduce the Cost of Evaluation in Evolutionary Learning
The supervised learning methods applying evolutionary al gorithms to generate knowledge model are extremely costly in time and space. Fundamentally, this high computational cost is fundamentally due to the evaluation process that needs to go through the whole datasets to assess…
DOI: 10.1007/11494669_98
Leitura automática de expressões matemáticas: audiomath
Nesta dissertação estuda-se o problema do ensino e da falta de acessibilidade dos documentos com conteúdos matemáticos na Internet por parte de pessoas com necessidades especiais, nomeadamente cegos e amblíopes. A solução proposta nesta dissertação baseia-se na análise…
DOI: 10.34626/wybx-4p22
Online labs and the MARVEL experience
MARVEL is a Leonardo da Vinci project that provides a framework to analyse the pedagogic effectiveness of online labs in various heterogeneous areas that include solar energy, robotics, electronics and electro-pneumatics. It is also used as a test bench to compare the…
Fuzzy memoization for floating-point multimedia applications
Instruction memoization is a promising technique to reduce the power consumption and increase the performance of future low-end/mobile multimedia systems. Power and performance efficiency can be improved by reusing instances of an already executed operation. Unfortunately, this…
DOI: 10.1109/TC.2005.119
As orientações curriculares: os sentidos nos discursos e nas práticas dos educadores de infância
DOI: 10.34626/5q9m-aw87
El contexto del cambio y la gestión medioambiental
Las organizaciones cambian, pasan de unos escenarios a otros con el afán de mayores beneficios. El estudio del cambio busca la comprensión de algunas de las estrategias utilizadas, en determinadas situaciones, por las organizaciones. El cambio se encuentra dividido en tres…
(IMP)³ Policy Options. D 5.2 Final Report
The final report "(IMP)3 Policy Options" summarizes main results of the desk research and empirical research on the implementation of the EIA Directive and the actual application of EIA on the ground across Europe and presents possible policy options in order to improve EIA…
Analysis and Visualization of the DX Community with Information Extracted from the Web
The aim of the present work is the graphical representation of the structures of a specific knowledge area with data extracted from the Web. Recent Internet development has facilitated access to these new resources and has contributed towards the creation of new disciplines…
DOI: 10.1007/11546924_71
Dynamical zeta functions and Kummer congruences
We establish a connection between the coefficients of Artin-Mazur zeta-functions and Kummer congruences. This allows to settle positively the question of the existence of a map T : X → X such that the number of fixed points of T n are |E2n|, where E2n are the Euler numbers. Also…
DOI: 10.4064/aa119-1-3
Software radios: unifying the reconfiguration process over heterogeneous platforms
Future radio transceivers supporting the software radio concept will provide increased features for radio access networks. However, the reconfiguration of radio equipment requires the existence of architecture, a common framework, which allows the flexible management of software…
Open issues in interdomain routing: A survey
This article surveys several research challenges in interdomain routing. We introduce and describe these challenges in a comprehensible manner, along with a review of the most compelling contributions and ongoing research efforts addressing each of the exposed issues. During…
DOI: 10.1109/MNET.2005.1541721
Proceso de análisis y formulación de la estrategia para un instituto de enseñanza secundaria.
El presente documento interno de trabajo incluye un plan estratégico completo para el IES Terrassa, donde se detalla la delimitación del entorno sectorial, un análisis externo desarrollado por el modelo de las 5 fuerzas competitivas, un análisis interno desarrollado por el…
As significações relativas ao corpo e a relação mãe-bébé ao longo do processo gravídico
DOI: 10.34626/j4dx-we04
Mejora de la productividad y la calidad en una línea de envasado de líquido
El presente proyecto se ha realizado bajo un marco de convenio Universidad- Empresa en una planta de productos químicos de gran consumo. Por un lado, pretende proponer una metodología de análisis y mejora de la productividad de cualquier proceso productivo; y por otro, tiene…
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design
A computational study at the density functional theory level was performed on bioactive and model sulfonamides with the aim of determining the factors affecting the acidity of the sulfonamido group. The effects of introducing different substiments at either the para-aryl or the…
DOI: 10.1016/j.tet.2005.01.034