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Fluidic Bypass Structures for Improving the Robustness of Liquid Scanning Probes

David Philipp Taylor

Objective: We aim to improve operational robustness of liquid scanning probes. Two main failure modes to be addressed are an obstruction of the flow path of the processing liquid and a deviation from the desired gap distance between probe and sample. Metho ...

2019

Model-based predictive control methods for distributed energy resources in smart grids

Luca Fabietti

This thesis develops optimization-based techniques for the control of distributed energy resources to provide multiple services to the power network. It is divided into three parts. The first part of this thesis focuses on the development of a framework f ...

EPFL2019

Distributed Transactions: Dissecting the Nightmare

Rachid Guerraoui, Willy Zwaenepoel, Diego Didona, Junxiong Wang

Many distributed storage systems are transactional and a lot of work has been devoted to optimizing their performance, especially the performance of read-only transactions that are considered the most frequent in practice. Yet, the results obtained so far ...

2018

Evolution of reservoir flushing and emptying practices in a cascade of large reservoirs across several decades

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Samuel Luke Vorlet, Sebastián Guillén Ludeña

Reservoir sedimentation is, at present, one of the main concerns in the operational management of dams in the Alps. For larger seasonal storage reservoirs, the main operational concern is the blockage of bottom outlets and turbine abrasion. In case of infr ...

2018

Comprehensive power loss modelling to improve the performance of an Energy Recovery Station for water utility networks

François Avellan, Loïc Andolfatto, Cécile Münch-Alligné, Daniel Biner

The work presented in this paper details the methodology applied to inventory and estimate the power losses in a micro-turbine with counter-rotating runners. The separation between the impact of design parameters and operational parameters on each identifi ...

Pennwell2017

Secure numerical and logical multi party operations

Bin Lu

We derive algorithms for efficient secure numerical and logical operations in the semi-honest model ensuring statistical or perfect security for secure multi-party computation (MPC). To derive our algorithms for trigonometric functions, we use basic mathem ...

Elsevier Science Bv2017

An integrated optimization-simulation framework for vehicle and personnel relocations of electric carsharing systems with reservations

Nikolaos Geroliminis, Burak Boyaci, Konstantinos Zografos

One-way electric vehicle carsharing systems are receiving increasing attention due to their mobility, environmental, and societal benefits. One of the major issues faced by the operators of these systems is the optimization of the relocation operations of ...

Elsevier2017

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An integrated optimization-simulation framework for vehicle and personnel relocations of electric carsharing systems with reservations

Nikolaos Geroliminis, Burak Boyaci, Konstantinos Zografos

Elsevier2017