Publications related to Design and Validation of a Low-Cost Wearable Assistive Device for Carrying Back Loads

A linear programming approach to the optimization of residential energy systems

Jan Van Herle, Daniel Kuhn, Dirk Lauinger, Priscilla Caliandro

A decision-support tool (ORES) in the form of a linear program is developed to determine the optimal investment and operating decisions for residential energy systems. It shows how energy conversion units such as a cogeneration fuel cell, a heat pump, a bo ...

2016

HCloud: Resource-Efficient Provisioning in Shared Cloud Systems

Christos Kozyrakis

Cloud computing promises flexibility and high performance for users and cost efficiency for operators. To achieve this, cloud providers offer instances of different sizes, both as long-term reservations and short-term, on-demand allocations. Unfortunately, ...

Assoc Computing Machinery2016

Exact Convex Modeling of the Optimal Power Flow for the Operation and Planning of Active Distribution Networks with Energy Storage Systems

Mostafa Nick

The distribution networks are experiencing important changes driven by the massive integration of renewable energy conversion systems. However, the lack of direct controllability of the Distributed Generations (DGs) supplying Active Distribution Networks ( ...

EPFL2016

Optimal Allocation of Dispersed Energy Storage Systems in Active Distribution Networks for Energy Balance and Grid Support

Mario Paolone, Sidi-Rachid Cherkaoui, Mostafa Nick

Dispersed storage systems (DSSs) can represent an important near-term solution for supporting the operation and control of active distribution networks (ADNs). Indeed, they have the capability to support ADNs by providing ancillary services in addition to ...

IEEE Institute of Electrical and Electronics Engineers2014

Physical Mechanisms governing Self-Excited Pressure Oscillations in Francis Turbines

Andres Müller

The importance of renewable energy sources for the electrical power supply has grown rapidly in the past decades. Their often unpredictable nature however poses a threat to the stability of the existing electric grid. Hydroelectric powerplants play an impo ...

EPFL2014

Autonomic SLA-driven Provisioning for Cloud Applications

Karl Aberer, Nicolas Bonvin

Significant achievements have been made for automated allocation of cloud resources. However, the performance of applications may be poor in peak load periods, unless their cloud resources are dynamically adjusted. Moreover, although cloud resources dedica ...

2011

Decoupling contention management from scheduling

Anastasia Ailamaki, Radu Ioan Stoica, Frederick Ryan Johnson

Many parallel applications exhibit unpredictable communication between threads, leading to contention for shared objects. The choice of contention management strategy impacts strongly the performance and scalability of these applications: spinning provides ...

2010

Kinetic simulations of the parallel transport in the JET scrape-off layer

Richard Pitts

in this paper, we present kinetic simulation results of plasma parallel transport in the stationary and ELMy scrape-off (SOL) layer. We demonstrate that number of kinetic factors describing SOL are strongly nonuniform and evolve during the ELM. Power loads ...

Elsevier2009

Stochastic Simulation of Occupant Presence and Behaviour in Buildings

Jean-Louis Scartezzini, Jessen Page, Darren Robinson

While most current building simulation tools consider occupants as predictable robots the true nature of human behaviour is more complex. This article describes a set of stochastic models aimed at capturing this complexity by decoupling occupant presence f ...

2007