Publications associées à Bascule de Schmitt

Scaling Description of Dynamical Heterogeneity and Avalanches of Relaxation in Glass-Forming Liquids

We provide a theoretical description of dynamical heterogeneities in glass-forming liquids, based on the premise that relaxation occurs via local rearrangements coupled by elasticity. In our framework, the growth of the dynamical correlation length e and o ...

American Physical Society2023

Enhancement-mode Multi-channel AlGaN/GaN Transistors with LiNiO Junction Tri-Gate

Elison de Nazareth Matioli, Luca Nela, Taifang Wang

Multi-channel GaN power device, consisting of stacking multiple two-dimensional-electron-gas (2DEG) channels, has been demonstrated to achieve unprecedented on-state performance while maintaining high breakdown voltage (VBR). However, the large carrier den ...

Institute of Electrical and Electronics Engineers2022

Low-Latency High-Bandwidth Circuit and System Design for Trigger Systems in High Energy Physics

Marcos Vinícius Silva Oliveira

The increasing luminosity in HEP (High Energy Physics) colliders demands trigger systems to be more selective. First, more information from the detector is routed to the trigger system. Second, larger parts of this information are processed together. These ...

EPFL2021

High Tuning Range Spiking 1R-1T VO2 Voltage-Controlled Oscillator for Integrated RF and Optical Sensing

Mihai Adrian Ionescu, Teodor Rosca, Fatemeh Qaderi Rahaqi

In this work we propose and experimentally validate a relaxation spiking oscillator architecture with ultra-high tuning range (higher than 400%, from 5KHz to more than 25kHz when the control voltage is varied from 2.5 to 5V) that exploits the reversible me ...

IEEE2021

High-Speed ADC Design and Optimization for Wireline Links

Ayça Akkaya

The ever-growing global internet traffic has increased demand for higher speed data transmission. As the bandwidth requirements of wireline links increase, extensive digital equalization techniques are required to compensate for the high-frequency channel ...

EPFL2021

Output-Capacitance Hysteresis Losses of Field-Effect Transistors

Elison de Nazareth Matioli, Armin Jafari, Palliyage Srilak Nirmana Perera, Luca Nela, Georgios Kampitsis

Resonant-type power converters are supposed to generate zero switching losses during soft-switching operation. In recent research, unexpected switching losses were reported in these converters, which were attributed to a large-signal hysteresis observed in ...

IEEE2020

Triboelectric‐TFT Flip‐Flop for Bistable Latching of Dielectric Elastomer Actuators

Danick Briand, Herbert Shea, Rubaiyet Iftekharul Haque, Alexis Pierre Henri Marette, Xiaobin Ji, Ronan Julien Hinchet

A high‐voltage flip‐flop combining two self‐powered soft sensors with a flexible high‐voltage thin film transistor (HVTFT) is reported, and is used to electrically latch dielectric elastomer actuators (DEAs) in zero and high‐strain states. Two touch‐actuat ...

2019

Façade design and our experience of space: the joint impact of architecture and daylight on human perception and physiological responses

Marilyne Andersen, Jan Wienold, Kynthia Chamilothori

Daylight has an undeniable value in various aspects of architectural design, ranging from energy efficiency and user comfort to our experience of space. Even though there is substantial evidence of the positive effects of daylight access on occupants, we h ...

2018

Inverted Current-Voltage Hysteresis in Mixed Perovskite Solar Cells: Polarization, Energy Barriers, and Defect Recombination

Michael Graetzel, Wolfgang Richard Tress, Michael Saliba, Antonio Abate

Organic-inorganic metal halide perovskite solar cells show hysteresis in their current-voltage curve measured at a certain voltage sweep rate. Coinciding with a slow transient current response, the hysteresis is attributed to a slow voltage-driven (ionic) ...

Wiley-VCH Verlag Berlin2016

The major upgrade of the MAGIC telescopes, Part II: A performance study using observations of the Crab Nebula

MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes located in the Canary island of La Palma, Spain. During summer 2011 and 2012 it underwent a series of upgrades, involving the exchange of the MAGIC-I camera and its trigger system, as well a ...

Elsevier Science Bv2016

Influence of ground wire on the initiation of upward leader from 110 to 1000kV AC phase line

Farhad Rachidi-Haeri, Xi Wang, Rong Zeng

The problem of upward leader inception from transmission lines has not been thoroughly discussed, largely because of the difficulty to obtain experimental data under natural circumstances. Previous studies have primarily examined reduced-scale experiments ...

Elsevier2016

Multiple-Independent-Gate Field-Effect Transistors for High Computational Density and Low Power Consumption

Jian Zhang

Transistors are the fundamental elements in Integrated Circuits (IC). The development of transistors significantly improves the circuit performance. Numerous technology innovations have been adopted to maintain the continuous scaling down of transistors. W ...

EPFL2016

184 mu W ultrasonic on-off keying/amplitude-shift keying demodulator for downlink communication in deep implanted medical devices

Catherine Dehollain, Francesco Mazzilli

An ultrasonic on-off keying/amplitude-shift keying demodulator using standard 0.18 mu m CMOS technology is proposed, intended for recovering the identification number of an implanted medical device transmitted from an external base station. The CMOS integr ...

Institution of Engineering and Technology2016

Clawed Miniature Inchworm Robot Driven by Electromagnetic Oscillatory Actuator

Jamie Paik

In this research we propose a novel inchworm robot, which is composed of an Electromagnetic Oscillatory Actuator (BOA) and claws. The EOA consists of a yoke, a magnet, and a coil. The overall robot size is 12.2 mm x 11 mm x 9 mm (length x height x width). ...

Science Press2015

Implementation and Characterization of Dynamic Genetic Networks in Vitro

Henrike Marie Niederholtmeyer

Transcription and translation (TX-TL) can be performed in vitro, outside of cells, allowing the assembly and analysis of genetic networks. This approach to engineering biological networks in a less complex and more controllable environment could one day al ...

EPFL2015

Graphene Negative Differential Resistance Circuit With Voltage-Tunable High Performance at Room Temperature

Mihai Adrian Ionescu, Arnaud Magrez, Antonios Bazigos, Laurent Syavoch Bernard, Pankaj Sharma

We propose, fabricate, and experimentally demonstrate a circuit based on graphene field-effect transistors (GFETs) showing enhanced negative differential resistance (NDR) characteristics at room temperature. The proposed graphene NDR (GNDR) circuit consist ...

Institute of Electrical and Electronics Engineers2015

Cmos compatible non-volatile latch and d-flip flop using resistive switching materials

Davide Sacchetto, Yusuf Leblebici, Tugba Demirci

A non-volatile latch circuitry, comprising a Re RAM cell configured to store a final value of the non-volatile latch circuitry; a data selection circuitry configured to connect or disconnect a data input to a plus voltage node and a minus voltage node of t ...

2014

Polarity-Controllable Silicon Nanowire Transistors with Dual Threshold Voltages

Giovanni De Micheli, Davide Sacchetto, Yusuf Leblebici, Jian Zhang, Pierre-Emmanuel Julien Marc Gaillardon, Michele De Marchi

Gate-all-around (GAA) silicon nanowires enable an unprecedented electrostatic control on the semiconductor channel that can push device performance with continuous scaling. In modern electronic circuits, the control of the threshold voltage is essential fo ...

Institute of Electrical and Electronics Engineers2014

Modeling of Reconfigurable Medical Ultrasonic Applications in BIP

Alena Simalatsar, Stefanos Skalistis

Medical ultrasonic imaging applications require high quality of images produced in real-time often with limited resources available. Deadlock-freedom and confluency must be guaranteed to ensure the correctness of the applications, while feasibility and opt ...

Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik2014

Room temperature strong coupling between a microwave oscillator and an ensemble of electron spins

Jürgen Brugger, Giovanni Boero, David Michael Suter, Jens Anders, Gabriele Gualco, Radoslaw Lisowski

We demonstrate theoretically and experimentally the possibility to achieve the strong coupling regime at room temperature with a microwave electronic oscillator coupled with an ensemble of electron spins. The coupled system shows bistable behaviour, with a ...

Academic Press Inc - Elsevier Science2013