Ikerketa-Artikuluak: Envíos recientes
Mostrando ítems 401-420 de 784
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Adaptive coatings based on polyaniline for direct 2D observation of diffusion processes in microfluidic systems
(Elsevier, 2016)Microfluidic devices are poised to dramatically influence the future of the process industry. Therefore the understanding and proper evaluation of the flow and mixing behaviour at microscale becomes a very important issue. ... -
Study of alternatives and experimental validation for predictions of hole-edge fatigue crack growth in 42CrMo4 steel
(Elsevier, 2018)The objective of this work is to establish pertinent criteria allowing an optimal alternative to be chosen for calculating the inputs needed to make Run/Repair/Replace decisions and to program inspection plans for cracked ... -
Surface roughness assessment on hole drilled through the identification and clustering of relevant external and internal signal statistical features
(Elsevier, 2022)Drilling is a continuous cutting process where two or more cutting edges remove the material, to obtain the desired feature. During the chip evacuation, it generally rubs against the generated surface. Thus, the roughness ... -
Sensor signal selection for tool wear curve estimation and subsequent tool breakage prediction in a drilling operation
(Taylor & Francis, 2021)Tool condition monitoring have an important role in machining processes to reduce defective component and ensure quality requirements. Stopping the process before the tool breaks or an excessive tool wear is reached can ... -
Diferencia en las percepciones sobre las prácticas de gestión de personas entre mano de obra directa e indirecta. Estudio de caso de una cooperativa de MONDRAGON
(Universidad Complutense de Madrid, 2022)El principal objetivo de la presente investigación es analizar, basándose en la teoría AMO, las diferencias en las percepciones de las personas trabajadoras de mano de obra directa e indirecta con respecto a las prácticas ... -
Connotative meaning of travel modes and activity-travel behavior
(Elsevier Ltd, 2018)This paper aims to present results of a study regarding how the meaning of travel modes influences on the performance of activities and trips. Connotative meaning of travel modes was measured using semantic differential ... -
User behavior shift detection in ambient assisted living environments
(JMIR Publications, 2013)Identifying users' frequent behaviors is considered a key step to achieving real, intelligent environments that support people in their daily lives. These patterns can be used in many different applications. An algorithm ... -
A Performance Study of a Horizontal-axis Micro-turbine in a Numerical Wave Flume
(Elsevier Ltd., 2017)Numerical studies of performance of a 3-bladed Savonius type horizontal-axis wave energy converter are presented. Numerical simulations based on a volume of fluid (VOF) method coupled with a finite volume method (FVM) ... -
Simple voltage balancing method to protect series-connected devices experimentally verified in a 5L-MPC converter
(IEEE, 2018)This paper presents a solution for the voltage balance problem of the series-connected devices that can be applied to multilevel converters in which the series-connected devices need to block twice their switched voltage. ... -
DC-link Voltage Balancing Strategy based on SVM and Reactive Power Exchange for a 5L-MPC Back-to-Back Converter for Medium Voltage Drives
(IEEE, 2016)The reduced capability of multilevel converters with more than one intermediate node to balance the dc-link capacitors voltage, as well as the lack of standard modulation methods to improve their balancing performance, ... -
Reactive power limits of Cascaded H-Bridge STATCOMs in star and delta configuration under negative-sequence current withstanding
(Elsevier Ltd., 2022)Flexible AC Transmission System devices (FATCS) and in particular Static Synchronous Compensators (STATCOM) play a key role in the evolution of the modern power grids to the future smart grids. The STATCOM is used in an ... -
Effect of surface integrity generated by machining on isothermal low cycle fatigue performance of Inconel 718
(Elsevier Ltd., 2022)Critical aero-engine components such as turbine discs must withstand severe cyclic stresses, which can eventually lead to low cycle fatigue (LCF) failures. These components are made of difficult-to-cut alloys and machining ... -
Petri net-based semi-compiled code generation for programmable logic controllers
(MDPI, 2021)Industrial discrete event dynamic systems (DEDSs) are commonly modeled by means of Petri nets (PNs). PNs have the capability to model behaviors such as concurrency, synchronization, and resource sharing, compared to a step ... -
Learning and generalising object extraction skill for contact-rich disassembly tasks: an introductory study
(Springer, 2021)Remanufacturing automation must be designed to be flexible and robust enough to overcome the uncertainties, conditions of the products, and complexities in the planning and operation of the processes. Machine learning ... -
A Controlled Thermoalgesic Stimulation Device for Exploring Novel Pain Perception Biomarkers
(IEEE, 2021)Objective: To develop a new device for identifying physiological markers of pain perception by reading the brain's electrical activity and hemodynamic interactions while applying thermoalgesic stimulation. Methods: We ... -
skrl: Modular and Flexible Library for Reinforcement Learning
(ArXiv, 2022)skrl is an open-source modular library for reinforcement learning written in Python and designed with a focus on readability, simplicity, and transparency of algorithm implementations. Apart from supporting environments ... -
State of the art of small wind energy analysing different controls
(Dyna, 2022)Existen dos topologías de aerogeneradores según el eje de giro: eje horizontal, "Horizontal Axis Wind turbines" (HAWT) y de eje vertical, "Vertical Axis Wind Turbines" (VAWT) [2]. Las turbinas HAWT son empleadas para ... -
Numerical methodology based on fluid-structure interaction to predict the residual stress distribution in glass tempering considering non-uniform cooling
(Elsevier, 2022)In this paper a novel numerical methodology for calculating non-uniform residual stress distributions during the glass tempering process is presented. Tempering techniques lead to non-uniform heat transfer rates causing ... -
Surface topography irregularities generated by broaching
(Elsevier Ltd., 2022)Surface topography irregularities generated by broaching are analysed. Experimental tests were carried out on three workpiece materials: AISI 1045, Ti-6Al-4V, and Inconel 718, varying the cutting speed, rise per tooth, and ... -
Less Rare-Earth Electromagnetic Design for a High-Performance Permanent Magnet Motor
(MDPI, 2022)This paper presents an electromagnetic design alternative using the so-called banana-shaped magnets, achieving magnet weight reduction of 21.82% for the same performance as the baseline motor in the case study. Typically, ...
