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Publications associées (15)

Transparent nanomeshes for smart windows

Andreas Schueler, Jérémy Jacques Antonin Fleury

Conventional selective low-e coatings for windows of residential buildings have a cut-off frequency in the near infrared spectral region NIR, limiting the resulting solar heat gain coefficient to g ≈ 0.5. By structuring the coating into nanomeshes, the sel ...

Swiss Federal Office of Energy SFOE2021

Pushing the Limits of Efficiency and Power Density in High-Frequency Power Conversion Based on Wide-Band-Gap Technologies

Armin Jafari

The emergence of wide-band-gap (WBG) power transistors with low conduction losses and high-speed switching speeds has paved the way for more-than-ever efficient power electronics systems and huge energy saving potentials. Likewise, power density- the ratio ...

EPFL2021

Open loop control theory algorithms for high-speed 3D MEMS optical switches

There is a world-wide push to create the next-generation all-optical transmission and switching technologies for exascale data centers. In this paper we focus on the switching fabrics. Many different types of 2D architectures are being explored including M ...

2020

Design of an inverter for high-speed synchronous generators using SiC FETs

Existing inverter designs are not well-suited for use with high-speed generators due to the IGBTs used as switching elements, which are not fast enough. SiC FETs offer a lower switching time compared to IGBTs, which is key to working with high-frequency ma ...

2020

Measuring and Managing Switch Diversity in Software Defined Networks

Maciej Leszek Kuzniar

Software Defined Networking (SDN) is a novel approach to building computer networks. Improved flexibility, simplified management and cost reduction promised by SDN makes many see it as the future of networking. The main insight of SDN is the separation of ...

EPFL2016

Building Evolvable Networks

Mihai Dobrescu

Software packet-processing platforms--network devices running on general-purpose servers--are emerging as a compelling alternative to the traditional high-end switches and routers running on specialized hardware. Their promise is to enable the fast dep ...

EPFL2015

A Buffer-Sizing Algorithm for Network-on-Chips with Multiple Voltage-Frequency Islands

Giovanni De Micheli, Luca Benini, Srinivasan Murali, Akash Kumar

Buffers in on-chip networks constitute a significant proportion of the power consumption and area of the interconnect, and hence reducing them is an important problem. Application-specific designs have nonuniform network utilization, thereby requiring a bu ...

2012

Chemical nanopatterns via Nanoimprint Lithography for simultaneous control over azimuthal and polar alignment of liquid crystals

Toralf Scharf

The use of chemical nanopatterns through nanoimprint lithography ato align a nematic liquid crystal (LC) in LC cells was described. It was found that the ratio of areas with different surface-aligning helped in the polar orientation of LC, while the azimut ...

2005

SFIO a striped file I/O library for MPI

Roger Hersch, Emin Gabrielyan

This paper presents the design and evaluation of a Striped File I/O (SFIO) library for parallel I/O within an MPI environment. We present techniques for optimizing communications and disk accesses for small striping factors. Using MPI derived datatype capa ...

IEEE Computer Society2001

SFIO, Parallel File Striping for MPI-I/O

Emin Gabrielyan

SFIO, Parallel File Striping for MPI-I/O Emin Gabrielyan EPFL, Computer Science Dept. Peripheral Systems Lab. Emin.Gabrielyan@epfl.ch Abstract This paper presents the design and evaluation of a Striped File I/O (SFIO) library for parallel I/O in an MPI env ...

2000

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