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Now showing items 2511-2520 of 2620
In pursuit of sustainable cutting fluid strategy for machining Ti-6Al-4V using life cycle analysis
(Elsevier, 2021-09)
The need for developing sustainable manufacturing processes which should have a good balance between economic viability and environmental protection is one of the key challenges against manufacturers. The conventional ...
Design, synthesis and cytotoxic evaluation of diphenyl(quinolin-8-yl)phosphine oxides
(Elsevier, 2021-04)
A new strategy is reported for the synthesis of quinolinylphosphine oxides via the Povarov reaction between phosphorous aldimines and acetylenes. Moreover, these compounds were studied for in vitro cytotoxicity on a human ...
Development of iron-rich microwires with a unique combination of magnetic properties
(Elsevier, 2021-04)
We studied the influence of post-processing on magnetic properties of Fe-rich microwires and defined the routes to obtain Fe-rich cost-effective microwires with unique combination of magnetic properties allowing observation ...
Review of protection systems for multi-terminal high voltage direct current grids
(Elsevier, 2021-07)
Given the current evolution of Voltage Source Converters (VSC), Multi-Terminal High Voltage Direct Current (MTDC) grids are now becoming a real possibility. Still, some technical issues have to be addressed. The protection ...
Environmental balance of the high speed rail network in Spain: A Life Cycle Assessment approach
(Elsevier, 2021-12)
Spain has the world's second longest network of high speed rail lines built and in service. High-Speed Rail (HSR) is usually presented as a sustainable means of transport with huge potential to reduce greenhouse gas (GHG) ...
A MILP optimization method for energy renovation of residential urban areas: Towards Zero Energy Districts
(Elsevier, 2021-05)
The nearly Zero Energy Building concept should be adopted in the renovation of existing buildings and actions upscaled and applied to larger and larger urban areas. In this context, this paper presents an optimization ...
Numerical optimization based control design for a ferromagnetic shape memory alloy actuator
(Elsevier, 2021-11)
Ferromagnetic shape memory alloys (FSMA) based actuators are able to get very good precision, allowing, indeed, under nanometer positioning applications. To get those precisions, a good controller is needed, and different ...
Review of a Custom-Designed Optical Sensing System for Aero-Engine Applications
(MDPI, 2021-02-25)
Fibre bundle-based reflective optical sensors are good candidates for parameter monitorisation in aero engines. Tip clearance is one of those parameters of great concern that is necessary to monitor. Within this optical ...
Infrared emissivity of reduced-activation Eurofer 97 for fusion reactor applications
(Elsevier, 2021-02-28)
The spectral directional emissivity of Eurofer 97 is reported between 423 and 873 K for two surface states. Total hemispherical data has been calculated by numerical integration of the measured data and compared to the ...