Buscar
Mostrando ítems 3001-3020 de 3042
Nuevas metodologías centradas en el usuario para la creación de software en la industria 4.0New user centered methodologies for software development in the industry 4.0 era
(Dyna, 2017)
La cuarta revolución industrial o más conocida como la industria 4.0 ha supuesto una gran transformación en el ámbito de la máquina herramienta. Mediante los sistemas ciber-físicos se logra conectar todos los objetos de ...
Metodología UCAD: nuevo procedimiento de diseño de interfaces centrado en el usuario para la industria 4.0
(Dyna, 2017)
La nueva industria inteligente trae consigo una gran transformación y ofrece nuevas oportunidades y posibilidades de mejora para la industria manufacturera. De modo que se han creado nuevos sistemas ciber-físicos de ...
Microstructural aspects of the transition between two regimes in orthogonal cutting of AISI 1045 steel
(Elsevier, 2018)
In depth understanding of tool-chip friction behavior is a significant aspect for tool wear performance in steels. In the present work attention has been paid to the strain mode of the chip section in contact with the rake ...
Sorption isotherm, glass transition, and diffusion coefficient of polyacrylamide/water solutions
(ACS Publications, 2012)
The sorption isotherm, the glass transition, and the mutual diffusion coefficient of polyacrylamide/water solutions are obtained experimentally. All of these parameters are measured in the concentrated regime by gravimetric ...
Biziraupen Estimazio Modeloa Garraio Astuneko Aplikazioetan Erabiltzen Diren Superkondentsadoreentzako
(UEU, 2019)
Due to the high pollution levels, in the last few years the need of improving the efficiency of the transportation sector has increased. In this context, transport applications powered by electric storage systems emerge ...
Neutroi-tekniketarako egokia den lehenengo berun-azido bateriaren diseinua eta optimizazioa
(UEU, 2017)
Lead-acid batteries have consistently accounted for the largest market share of secondary batteries. However, there is still significant opportunity for improvement of lead-acid battery technology. Typically, lead-acid ...
OPTIBODY: A New Structural Design Focused in Safety
(SAE International, 2013)
With electric vehicles becoming more and more popular, the classic “general purpose” vehicle concept is changing to a “dedicated vehicle” concept. Light trucks for goods delivery in cities are one of the examples. The ...
Mass effect on the soret coefficient in n-alkane mixtures
(AIP Publishing, 2014)
We have determined the Soret coefficient of different equimolar and non equimolar n-alkane mixtures from measurements of the molecular diffusion and thermal diffusion coefficients. It is shown that equimolar mixtures behave ...
Kernel hautapen dinamikoa Optimizazio Bayesiarrean
(UEU, 2015)
In Bayesian Optimization, when using a Gaussian Process prior, some kernels adapt better than others to the objective function. This research evaluates the possibility of dynamically changing the kernel function based on ...
Analytical model to calculate radial forces in permanent-magnet synchronous machines
(IEEE, 2014)
In permanent-magnet synchronous machines (PMSMs) electromagnetic forces are identified as the principal source of vibrations and noises. In this article, first of all the sources of magnetic forces in PMSMs are analyzed. ...
Radial fan simulations by computational fluid dynamics and experimental validation
(IEEE, 2014)
Fans are commonly used to refrigerate electrical machines when air forced cooling is required. They are rather simple solutions that can considerably improve the thermal performance of electrical machines, so the fan ...
Methodology to Study Demagnetization Risk in Permanent Magnet Machines by Finite Element Method
(IEEE, 2017)
Nowadays the majority of applications are demanding more and more compact, cost effective and robust solutions for their electric drives. In this context permanent magnet synchronous machines are considered as a good ...
Thermal test procedure and analytical model calibration method for electrical machines
(IEEE, 2013)
In this paper a thermal test procedure and a calibration method for lumped parameter models are presented. Analytical models provide fast thermal simulations in comparison with finite element methods (FEM) and computed ...
Analytical model to calculate magnetic flux density in permanent magnet synchronous machines with static eccentricity
(IEEE, 2016)
In this article a general analytical model for the analysis of permanent magnet synchronous machines with static eccentricity is presented. The model is a continuation of [1] and it is based on Fourier time-space series ...
Experimental test bench for testing DC microgrid control strategies
(IEEE, 2017)
During the last decades the number of microgrids and their research have increased notably, as they offer a high versatility for the integration of distributed generation (DG) units and renewable energies. Among the different ...
Comprehensive analysis of voltage balancing techniques for 5L NPC converters
(IEEE, 2013)
The reduced capability of the 5L-NPC Inverter to balance the voltages of the four DC-bus capacitors makes this converter unattractive for real power applications. This is especially true if the load demands active power. ...
Emakumearen mututasun soziala: feminitatearen eta maskulinitatearen estereotipoak
(UEU, 2017)
Most of the main gender stereotypes that nowadays are still alive can already be discovered in Ancient Greece society. In this paper we will analyze Greek symbolic though using genderperspective. We want to unveil the ...
Model driven Hardware-in-the-Loop Fault analysis of railway traction systems
(IEEE, 2017)
Classical Dependability Analysis techniques, such as Failure Mode and Effects Analysis (FMEA) and Fault Tree Analysis, have been used during the last decades to demonstrate the reliability, availability, maintainability ...
Automatic detection test of current sensor faults for induction motor drives at standstill
(IEEE, 2016)
This paper proposes an automatic detection test of gain faults in current sensors. An offline test is applied when the machine is not operating. The designed test operates at standstill without being necessary to disconnect ...
Optimising Maintenance: What are the expectations for Cyber Physical Systems
(IEEE, 2016)
The need for maintenance is based on the wear of components of machinery. If this need can be defined reliably beforehand so that no unpredicted failures take place then the maintenance actions can be carried out economically ...