Bilatu
207-tik 21-30 emaitza erakusten
Influences of Cutting Speed and Material Constitutive Models on Chip Formation and their Effects on the Results of Ti6Al4V Orthogonal Cutting Simulation
(2021)
The highly used Ti6Al4V alloy is a well know hard-to-machine material. The modelling of orthogonal cutting process of Ti6Al4V attract the interest of many researchers as it often generates serrated chips. The purpose of ...
Hidrogeno tren baten diseinu eta operazioaren optimizazioa
(UEU, 2021)
This paper proposes an optimization methodology based on genetic algorithms for the design and operation of a hydrogen train. Indeed, the proposed approach optimizes the size of the hydrogen fuel cell, the size of the ...
In-depth Life Cycle Cost Analysis of a Hydrogen Electric Multiple Unit
(IEEE, 2021)
This paper analyses the life cycle costs of railway projects involving hydrogen electric multiple units. The analysis focuses on the interrelation between the selected lithium-ion battery technology, the designed energy ...
Cost-effectiveness of Opportunity Charging in Non-electrified Railway Lines
(IEEE, 2021)
This paper analyses the cost-effectiveness of deploying opportunity charging points in long-distance non-electrified railway lines, which are driven by battery-based hybrid diesel-electric railway vehicles. A study case ...
Genetic Algorithm-based Testing of Industrial Elevators under Passenger Uncertainty
(IEEE, 2021)
Elevators, as other cyber-physical systems, need to deal with uncertainty during their operation due to several factors such as passengers and hardware. Such uncertainties could affect the quality of service promised by ...
DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination PWM
(IEEE, 2021)
Selective harmonic elimination–pulsewidth modulation (SHE–PWM) is a modulation technique widely used to improve the efficiency and harmonic content in medium-voltage high-power converters. Among these converters, the ...
Lehen Hezkuntzako ikasleen segurtasun digitala: eskaerak eta konpromisoak #Izandig proiektuaren baitan
(Udako Euskal Unibertsitatea (UEU), 2021)
Internet egungo haur zein nerabeen bizitzaren bizkarrezur bilakatu da. Sareak eskaintzen
dizkien abantailak ugariak dira, baina arriskuak ere baditu. Online ekintza batzuen ondorioek
haur eta nerabeen ongizatea kaltetu ...
SiC erdieroaleak energia eolikoan LCoEa hobetzeko
(UEU, 2021)
This research identifies the wind energy as the main renewable source. In order to improve its LCoE, SiC semiconductors are proposed, together with different voltage levels and topologies. After analyzing various configurations, ...
Friction Stir Welding of AA2099-T83 and AA2060-T8E30 Aluminium Alloys with New Cr-Free Surface Treatments and Sealant Application
(MDPI, 2021)
The feasibility for friction stir welding (FSW) surface-treated AA2099-T83 aluminium extrusions with AA2060-T8E30 aluminium sheets in the overlap configuration and using a sealant at the interface was investigated in this ...
Partial Power Processing Based Converter for Electric Vehicle Fast Charging Stations
(MDPI, 2021)
This paper focuses on the design of a charging unit for an electric vehicle fast charging station. With this purpose, in first place, different solutions that exist for fast charging stations are described through a brief ...