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Now showing items 3981-3990 of 11442
Fe nanoparticles produced by electric explosion of wire for new generation of magneto-rheological fluids
(IOP Publishing, 2018)
Iron magnetic nanoparticles were produced by the technique of the electric explosion of a wire (EEW). The major crystalline phase (95 ± 1%) was α-Fe with lattice parameter a = 0.2863(3) nm. The size of the coherent diffraction ...
Contact pressure, sliding velocity and viscosity dependent friction behavior of lubricants used in tube hydroforming processes
(2021)
The final quality of sheet and tube metal formed components strongly depends of the tribology and friction conditions between the tools and the material to be formed. Furthermore, it has been recently demonstrated that ...
How to Quantify the Security Level of Embedded Systems? A Taxonomy of Security Metrics
(IEEE, 2020)
Embedded Systems (ES) development has been historically focused on functionality rather than security, and today it still applies in many sectors and applications. However, there is an increasing number of security threats ...
In-depth Life Cycle Cost Analysis of a Li-ion Battery-based Hybrid Diesel-Electric Multiple Unit
(IEEE, 2020)
This study analyzes the life cycle costs of railway projects involving hybrid diesel-electric multiple units, focusing on the influence of lithium-ion battery technologies and energy management strategies. Specifically, 3 ...
Partial Power Processing Based Charging Unit for Electric Vehicle Extreme Fast Charging Stations
(IEEE, 2020)
This paper presents an analysis and design of a charging unit inside an electric vehicle extreme fast charging station. Due to the benefits that partial power processing achieves in terms of size reduction and efficiency ...
Análisis de las percepciones de las personas trabajadoras de Mano de Obra Directa e Indirecta sobre la participación y las prácticas de gestión de personas. Estudio de caso de la cooperativa UAS
(Mondragon Unibertsitatea. Enpresagintza Fakultatea, 2022)
Las personas son el centro neurálgico de las organizaciones y, aún más, en la economía moderna y global donde los mercados están siendo cada vez más competitivos y dinámicos. Tener en cuenta a la persona trabajadora, ...
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 ...
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 ...
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 ...
Robustness of inventory replenishment and customer selection policies for the dynamic and stochastic inventory-routing problemRobustness of inventory replenishment policies and client selection methods for the stochastic and dynamic inventory-routing problem
(Elsevier, 2016)
When inventory management, distribution and routing decisions are determined simultaneously, implementing a vendor-managed inventory strategy, a difficult combinatorial optimization problem must be solved to determine which ...
