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Article history: Received 10 December 2010 Received in revised form 6 July 2011 Accepted 6 July 2011 Available online 4 August 2011 0026-2714/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.microrel.2011.07.020 ⇑ Corresponding author. Tel.: +34 914521100; fax: E-mail addresses: oruano@nebrija.es (O. Ruano Maestro), previrie@nebrija.es (P. Reviriego).(More)
Pure Mg has been proposed as a potential degradable biomaterial to avoid both the disadvantages of non-degradable internal fixation implants and the use of alloying elements that may be toxic. However, it shows excessively high corrosion rate and insufficient yield strength. The effects of reinforcing Mg by a powder metallurgy (PM) route and the application(More)
The corrosion behaviour of AZ31 magnesium alloy with different grain sizes immersed in simulated body fluids was compared in chloride solution (8 gl(-1)) and in phosphate-buffer solution (PBS). The influence of immersion time was also analyzed. Electrochemical techniques such as open circuit potential, polarization curves, transient currents and(More)
In this paper we present a simulation platform tailored for Signal Processing Circuits that injects bit flips in order to model soft errors. The platform is based on the ESA Data Systems Division’s SEE Simulation Tool upgraded with new functionalities. In order to show the effectiveness of the platform, a digital filter has been tested.
The problem of radiation is a key issue in Space applications, since it produces several negative effects on digital circuits. Considering the high reliability expected in these systems, many techniques have been proposed to mitigate these effects. However, traditional protection techniques against soft errors, like Triple Modular Redundancy (TMR) or EDAC(More)
1 Traditional techniques to protect digital circuits against soft errors normally result in a significant area and power overhead. Some of those techniques may also reduce the maximum frequency of operation of the circuit as they introduce additional delays in the critical paths. In this paper we propose a circuit specific technique to protect digital(More)
Logic Soft Errors caused by radiation are a major concern when working with circuits that need to operate in harsh environments, such as space or avionics applications, where soft errors are traditionally referred as Single Event Effects. In this paper, system knowledge-based hardening techniques using recursive structures for the implementation of moving(More)
This brief presents a technique to efficiently correct single soft errors in serial shift registers. The proposed scheme uses two copies of the shift register. To achieve error correction, data are convolutionally encoded at the input of one of the copies and are decoded at its output. This processing ensures that in that copy, any error affecting a single(More)
Tensile tests were conducted to evaluate the influence of equal-channel angular pressing (ECAP) on the mechanical properties at room temperature of overaged Al 7075-O alloy. ECAP processing was performed using route BC at different temperatures and number of passes, i.e. different processing severity conditions. The maximum load (Fmax) recorded during the(More)
Impact toughness improvement of high strength aluminium alloy by intrinsic and extrinsic fracture mechanisms via hot roll bonding C.M. Cepeda-Jiménez*, J.M. García-Infanta, M. Pozuelo, O.A. Ruano, F. Carreño Department of Physical Metallurgy, CENIM, CSIC, Av. Gregorio del Amo 8, 28040 Madrid, Spain Department of Materials Science and Engineering, 6531-G(More)