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Gutierrez, M.A. (author), Carmeliet, J. (author), De Borst, R. (author)
conference paper 1994
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Mackay, L.J. (author), Hailu, T.G. (author), Chandra Mouli, G.R. (author), Ramirez Elizondo, L.M. (author), Ferreira, Jan Abraham (author), Bauer, P. (author)
The traditional ac power system is challenged by the increased amount of distributed energy resources. Enormous changes and investments are necessary in order to achieve an ac smart grid capable of coping with the challenges introduced. In dc, solutions seem to be more straightforward since most of the distributed energy sources and most of the...
conference paper 2015
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Rodrigues, Diego (author), Nazarian, G. (author), Moreira, Álvaro (author), Carro, Luigi (author), Gaydadjiev, G. (author)
Software-based methods for the detection of control-flow errors caused by transient fault usually consist in the introduction of protecting instructions both at the beginning and at the end of basic blocks. These methods are conservative in nature, in the sense that they assume that all blocks have the same probability of being the target of...
conference paper 2015
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Roy, S. (author), Hermans, F.F.J. (author), Aivaloglou, E.A. (author), Winter, J. (author), van Deursen, A. (author)
Spreadsheets are popular end-user computing applications and one reason behind their popularity is that they offer a large degree of freedom to their users regarding the way they can structure their data. However, this flexibility also makes spreadsheets difficult to understand. Textual documentation can address this issue, yet for supporting...
conference paper 2016
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Pouyan, P. (author), Amat, Esteve (author), Hamdioui, S. (author), Rubio, Antonio (author)
Emerging technologies such as RRAMs are attracting significant attention, due to their tempting characteristics such as high scalability, CMOS compatibility and non-volatility to replace the current conventional memories. However, critical causes of hardware reliability failures (such as process variation due to their nano-scale structure) have...
conference paper 2016
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Escudero-López, Manuel (author), Amat, Esteve (author), Rubio, Antonio (author), Pouyan, P. (author)
Memristors are considered a promising emerging device that may improve some specific applications, like memories, or make feasible new ones, mainly alternative computing architectures. However, it is not a mature technology and their characteristics can vary significantly depending on their structures. Also, variability and reliability might...
conference paper 2017
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Prisacaru, Alexandru (author), Gromala, Przemyslaw Jakub (author), Jeromio, Mateus Bagetti (author), Han, Bongtae (author), Zhang, Kouchi (author)
Miniaturization of electronics, reduction of time to market and new functionalities in the current context of autonomous driving, electrification and connectivity, are bringing new reliability challenges. Prognostics and Health Management (PHM) can be used effectively to address some of the key challenges, in particular new challenges...
conference paper 2017
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Tatsis, K. (author), Chatzi, Efi (author), Thons, S. (author), Lourens, E. (author)
The evaluation of fatigue damage accumulation on wind turbine support structures under operational conditions is heavily influenced by a number of uncertainties. These uncertainties may, firstly, be attributed to the highly variable and complex environmental loads, and secondly, to the unavoidable modelling errors which mainly originate from the...
conference paper 2017
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Sun, B. (author), Fan, Xuejun (author), Fan, J. (author), Zhang, Kouchi (author), Qian, Cheng (author)
In this work, a physics-of-failure (PoF) reliability prediction methodology is combined with statistical models to consider the interaction between the lumen depreciation and catastrophic failures of LEDs. The current in each LED may redistribute when the catastrophic failure occurs in one of LEDs in an array, thus affecting the operation...
conference paper 2017
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Shekhar, A. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
Since shipboard power systems are inherently islanded and consist of energy intensive sources and loads, it is an interesting application for dc microgrids. The object of this paper is to explore the merits of dc based shipboard power distribution as compared to conventional ac solutions. A survey of current initiatives, emerging concepts and...
conference paper 2017
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Sun, B. (author), Fan, J. (author), Fan, Xuejun (author), Zhang, Kouchi (author)
This work studies the effect of randomness of LED's lumen depreciation on reliability of the entire LED lamp. An integrated LED light bulb is selected as carrier of the proposed method. A PoF based lumen depreciation model and electronic-thermal simulations are introduced for reliability prediction. The normal distribution is used to describe...
conference paper 2018
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Baladeh, Aliakbar Eslami (author), Khakzad, N. (author)
Complex networks play a vital role in reliability analysis of real-world applications, demanding for precise and accurate analysis methods for optimal allocations of cost and reliability. Since the configuration of a system may change with every feasible solution of cost allocation optimization equation, finding the best arrangement of the...
conference paper 2019
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Jiang, Y. (author), Cucu Laurenciu, N. (author), Wang, H. (author), Cotofana, S.D. (author)
As CMOS scaling is reaching its limits, high power density and leakage, low reliability, and increasing IC production costs are prompting for developing new materials, devices, architectures, and computation paradigms. Additionally, temperature variations have a significant impact on devices and circuits reliability and performance. Graphene...
conference paper 2020
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Peyghami, S. (author), Blaabjerg, Frede (author), Rueda, José L. (author), Palensky, P. (author)
Power electronic converters are one of failure sources in energy systems, and hence drivers of downtime costs in power systems. Different approaches can be employed for converter reliability enhancement including design/control for reliability methods, condition monitoring and fault diagnosis, and maintenance strategies. This paper proposes...
conference paper 2020
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Mamone, Dario (author), Bosio, Alberto (author), Savino, Alessandro (author), Hamdioui, S. (author), Rebaudengo, Maurizio (author)
Nowadays, the reliability has become one of the main issues for safety-critical embedded systems, like automotive, aerospace and avionic. In an embedded system, the full system stack usually includes, between the hardware layer and the software/application layer, a middle layer composed by the Operating System (OS) and the middleware. Most of...
conference paper 2020
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Copetti, Thiago (author), Cardoso Medeiros, G. (author), Taouil, M. (author), Hamdioui, S. (author), Poehls, Leticia Bolzani (author), Balen, Tiago (author)
Fin Field-Effect Transistor (FinFET) technology enables the continuous downscaling of Integrated Circuits (ICs), using the Complementary Metal-Oxide Semiconductor (CMOS) technology in accordance with the More Moore domain. Despite demonstrating improvements on short channel effect and overcoming the growing leakage problem of planar CMOS...
conference paper 2020
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Bosio, A. (author), O'Connor, I. (author), Rodrigues, G. S. (author), Lima, F. K. (author), Hamdioui, S. (author)
Today's computer architectures and semiconductor technologies are facing major challenges making them incapable to deliver the required features (such as computer efficiency) for emerging applications. Alternative architectures are being under investigation in order to continue deliver sustainable benefits for the foreseeable future society...
conference paper 2020
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Arous, Ines (author), Dolamic, Ljiljana (author), Yang, J. (author), Bhardwaj, Akansha (author), Cuccu, Giuseppe (author), Cudré-Mauroux, Philippe (author)
Explainability is a key requirement for text classification in many application domains ranging from sentiment analysis to medical diagnosis or legal reviews. Existing methods often rely on "attention" mechanisms for explaining classification results by estimating the relative importance of input units. However, recent studies have shown that...
conference paper 2021
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Lee, J. (author), Mitici, M.A. (author)
Predictive aircraft maintenance is a complex process, which requires the modeling of the stochastic degradation of aircraft systems, as well as the dynamic interactions between the stakeholders involved. In this paper, we show that the stochastically and dynamically colored Petri nets (SDCPNs) are able to formalize the predictive aircraft...
conference paper 2021
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Seyffert, Harleigh C. (author), Kana, A.A. (author), Troesch, Armin W. (author)
This paper examines the performance of 6 stiffened ship panel designs in different operational profiles. The main question of interest is: which sea states will lead to the worst panel performances in terms of reliability? As stiffened panel collapse is governed by combined lateral and in-plane loading effects (non-linear functions of the...
conference paper 2021
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