Publications de Michael Müller

Precise determination of the low-energy electronuclear Hamiltonian of LiY1-xHoxF4

Michael Müller, Sandrine Gerber, Gabriel Aeppli

The insulating rare-earth magnet LiY1-xHoxF4 has received great attention because a laboratory field applied perpendicular to its crystallographic c axis converts the low-energy electronic spin Hamiltonian into the (dilute) transverse field Ising model. Th ...

2022

The instrument suite of the European Spallation Source

Michael Müller, Henrik Moodysson Rønnow, Paul Gregory Freeman, Ursula Bengaard Hansen, Markus Strobl

An overview is provided of the 15 neutron beam instruments making up the initial instrument suite of the European Spallation Source (ESS), and being made available to the neutron user community. The ESS neutron source consists of a high-power accelerator a ...

2020

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Giovanni De Cesare, Anton Schleiss, Michael Müller

In pumped-storage reservoirs, turbulent kinetic energy input from plant operation can be considerably high. Flow velocities were measured by Acoustic Doppler Current Profilers near the intake/outlet structure to describe flow patterns induced by pumped-sto ...

2018

Experiments on the effect of inflow and outflow sequences on suspended sediment exchange rates

Giovanni De Cesare, Anton Schleiss, Michael Müller

In laboratory experiments, the influence of inflow and outflow sequences on the behavior of fine sediment was investigated. The experimental set-up consisted of two interconnected rectangular basins, between which water was moved back and forth. Suspended ...

Irtces2017

The Antioxidant Defense System of Erythrocyte Concentrates is Increased during the First Week of Storage

Michel Prudent, Niels Erik Lion, Michael Müller, Fernando Cortes Salazar

Wiley-Blackwell2016

Kinematic and muscles activation patterns of the upper limbs in subjects with Multiple Sclerosis during planar movement and isometric force tasks

Michael Müller, Martina Coscia

Sage Publications Ltd2016

Continuous Long-Term Observation of Suspended Sediment Transport between Two Pumped-Storage Reservoirs

Giovanni De Cesare, Anton Schleiss, Michael Müller

Transport of suspended sediment between the two reservoirs of a pumped-storage plant in Switzerland was monitored over an 8-month period. A turbidity probe was installed on the upstream end of the pressure shaft, in which real-time monitoring was ensured b ...

Asce-Amer Soc Civil Engineers2014

Flow restoration in Alpine streams affected by hydropower operations—a case study for a compensation basin

Anton Schleiss, Michael Müller, Martin Peter Bieri

Hydropeaking, resulting from rapid starting and shut-down of turbines, is one of the major hydrological alterations in Alpine streams. The upper Aare River basin in Switzerland comprises a complex high-head storage hydropower scheme. The significant turbin ...

CRC Press/Balkema2014

Influence of pumped-storage operation on reservoir sedimentation

Giovanni De Cesare, Anton Schleiss, Michael Müller

In Europe, renewable energy sources are rapidly growing but are often linked to a highly volatile production, as for solar and wind energy. Pumped-storage plants have become very important since they can ensure grid stability and safe power supply at any m ...

2013

Influence of in- and outflow sequences on flow patterns and suspended sediment behavior in reservoirs

Michael Müller

Reservoir sedimentation and the resulting storage losses impact reliability, efficiency, safety and thus the sustainability of the hydropower schemes. Beside traditional storage hydropower plants, also pumped-storage facilities are affected. Flexible turbi ...

EPFL2012

Low-Bond Axisymmetric Drop Shape Analysis for Surface Tension and Contact Angle Measurements of Sessile Drops

Michaël Unser, Daniel Sage, Thierry Blu, Michael Müller

A new method based on the Young-Laplace equation for measuring contact angles and surface tensions is presented. In this approach, a first-order perturbation technique helps to analytically solve the Young-Laplace equation according to photographic images ...

Elsevier2010

Michael Müller

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Precise determination of the low-energy electronuclear Hamiltonian of LiY1-xHoxF4

The instrument suite of the European Spallation Source

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Experiments on the effect of inflow and outflow sequences on suspended sediment exchange rates

The Antioxidant Defense System of Erythrocyte Concentrates is Increased during the First Week of Storage

Kinematic and muscles activation patterns of the upper limbs in subjects with Multiple Sclerosis during planar movement and isometric force tasks

Continuous Long-Term Observation of Suspended Sediment Transport between Two Pumped-Storage Reservoirs

Flow restoration in Alpine streams affected by hydropower operations—a case study for a compensation basin

Influence of pumped-storage operation on reservoir sedimentation

Influence of in- and outflow sequences on flow patterns and suspended sediment behavior in reservoirs

Low-Bond Axisymmetric Drop Shape Analysis for Surface Tension and Contact Angle Measurements of Sessile Drops

Barrage de Lavey – Etudes physique et numérique des écoulements et du transport solide dans le Rhône

Wirbel über Wasserfassungen: Geschwindigkeitsmessungen im hydraulischen Modell

Vortices at intake works of pump-storage schemes