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Understanding the turbulent mechanisms setting the density decay length in the tokamak scrape-off layer

Paolo Ricci, Carrie Fiona Beadle

Mechanisms setting the density decay in the scrape-off layer (SOL) at the outer midplane of a tokamak plasma are disentangled using two-fluid numerical simulations in a double-null magnetic configuration and analytical estimates. Typical experimental obser ...

Cambridge University Press2020

Gyrokinetic analysis and simulation of pedestals to identify the culprits for energy losses using 'fingerprints'

Olivier Sauter, Ambrogio Fasoli, Basil Duval, Stefano Coda, Jonathan Graves, Yves Martin, Duccio Testa, Patrick Blanchard, Alessandro Pau, Henri Weisen

Fusion performance in tokamaks hinges critically on the efficacy of the edge transport barrier (ETB) in suppressing energy losses. The new concept of 'fingerprints' is introduced to identify the instabilities that cause transport losses in the ETBs of many ...

IOP Publishing Ltd2019

Model-based economic analysis of electrification in railway - Understanding the impact of track, operations, and uncertainties

Michel Bierlaire, Nikola Obrenovic, Florian Mueller

This paper presents results on the impact of different tracks on the economic viability of track electrification for regional railway. Since regional railway still heavily relies on pollutive diesel propulsion systems, track electrification can be key to r ...

2019

An optimization framework for exclusive bus lane allocation in large networks with dynamic congestion

Nikolaos Geroliminis, Dimitrios Tsitsokas, Anastasios Kouvelas

Road space distribution among multiple modes of transport in urban networks has attracted the interest of several researchers and policy planners. Traditionally, these problems are solved by ignoring operational and dynamic characteristics of multi-modal c ...

2019

A Study on the Charge Carrier Transport of Passivating Contacts

Gizem Nogay

Recently, the charge carrier transport mechanism of passivating contacts, which feature an ultra-thin oxide layer, has been investigated by studying temperature-dependent current-voltage (I-V) characteristics. The measurement revealed that tunneling is the ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2018

Network design of a transport system based on accelerating moving walkways

Michel Bierlaire, Riccardo Scarinci, Iliya Dimitrov Markov

Pollution, congestion and urbanistic considerations are leading to a change in the use of private vehicles in dense city centers. More frequently, the last-mile is covered with systems such as public transport, car sharing and bike sharing as well as an in ...

Pergamon-Elsevier Science Ltd2017

Heterotetracenes: Flexible Synthesis and in Silico Assessment of the Hole Transport Properties

Jérôme Waser, Kevin Sivula, Anne-Clémence Corminboeuf, Felipe Andres Saenz Padilla, Xavier Adrian Jeanbourquin, Ganna Gryn'ova, Yifan Li

Thienoacenes and furoacenes are among the most frequent molecular units found in organic materials. The efficient synthesis of morphologically different heteroacenes and the rapid determination of their solid-state and electronic properties are still chall ...

2017

Operation regimes and electrical transport of steep slope Schottky Si-FinFETS

Giovanni De Micheli, Jian Zhang, Pierre-Emmanuel Julien Marc Gaillardon

In the quest for energy efficient circuits, considerable focus has been given to steep slope and polarity-controllable devices, targeting low supply voltages and reduction of transistor count. The recently proposed concept of the three-independent gated Si ...

2017

An exploration of moving walkways as a transport system in urban centers

Michel Bierlaire, André Ourednik, Riccardo Scarinci, Farzaneh Bahrami

Moving walkways (MW) have been imagined as a possible means of transport since the late 19th century, and this system has fascinated urban planners and engineers ever since. Contrary to what has been imagined, moving walkways are only used in transportatio ...

Editorial Board Ejtir2017

Passenger Centric Train Timetabling Problem

Michel Bierlaire, Shadi Sharif Azadeh, Mohammad Yousef Maknoon, Tomas Robenek, Jianghang Chen

The aim of this paper is to analyze and to improve the current planning process of the passenger railway service in light of the recent railway market changes. In order to do so, we introduce the Passenger Centric Train Timetabling Problem. The originality ...

Pergamon-Elsevier Science Ltd2016

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An optimization framework for exclusive bus lane allocation in large networks with dynamic congestion

Nikolaos Geroliminis, Dimitrios Tsitsokas, Anastasios Kouvelas

2019

Understanding the turbulent mechanisms setting the density decay length in the tokamak scrape-off layer

Paolo Ricci, Carrie Fiona Beadle

Cambridge University Press2020

Model-based economic analysis of electrification in railway - Understanding the impact of track, operations, and uncertainties

Michel Bierlaire, Nikola Obrenovic, Florian Mueller

2019