Concept

Période critique

Publications associées (73)

On the Parameterization of Surface Roughness at Regional Scales

Marc Parlange, Charles Vivant Ignacio Meneveau

A parameterization for surface roughness and blending height at regional scales, under neutral atmospheric stability, is studied and tested. The analysis is based on a suite of large-eddy simulations (LES) over surfaces with varying roughness height and mu ...

2007

Anisotropy and the critical behaviour of the quasi-2D antiferromagnet, MnPS3

Henrik Moodysson Rønnow

Neutron scattering has been used to measure the critical behaviour of the sublattice magnetization, M, and the gap in the spin wave energies at the Brillouin zone centre, E-0, for a single crystal of the quasi-2D antiferromagnet, MnPS3. The system was prev ...

ELSEVIER SCIENCE BV2007

Hippocampal up-regulation of NCAM expression and polysialylation plays a key role on spatial memory

Maria del Carmen Sandi Perez

Memory formation has been associated with structural and functional modifications of synapses. Cell adhesion molecules are prominent modulators of synaptic plasticity. Here, we investigated the involvement of the cell adhesion molecules, NCAM, its polysial ...

2006

Processing of Graphite-Based Sacrificial Layer for Microfabrication of Low Temperature Co-fired Ceramics (LTCC)

Peter Ryser, Thomas Maeder, Hansu Birol

The processing and application of graphite powder-based sacrificial layer for fabrication of microfluidic structures in LTCC is described. Such layers are produced as pastes, which are screen-printed in LTCC sheets to avoid sagging, by supporting closed, t ...

2006

Time Dependent Behaviour of Elements Combining ultra-high performance fiber reinforced concretes (UHPFRC) and Concrete

Eugen Brühwiler, Emmanuel Denarié, Katrin Habel

Structural elements combining Ultra-High Performance Fiber Reinforced Concretes (UHPFRC)and concrete offer a high potential in view of rehabilitation and modification of existing structures. The investigation of the time-dependent behavior of composite “UH ...

2006

Improvement of motor function with noninvasive cortical stimulation in a patient with chronic stroke

Friedhelm Christoph Hummel

This manuscript reports the effects of transcranial DC stimulation (tDCS), a technique that enhances cortical plasticity in healthy humans, on motor function in a patient with chronic subcortical ischemic stroke. tDCS but not sham applied in a double-blind ...

2005

Ductility of Saffil(TM) short fibre reinforced metals

Andreas Mortensen, Ludger Weber, Reza Tavangar Hamzehkolaei

It is proposed that a critical combination of matrix strain hardening exponent and fibre volume fraction must be exceeded to confer attractive tensile ductility to short-fibre reinforced metal. © 2005 Acta Materialia Inc. Published by Elsevier Ltd. Al ...

2005

Inducing host acceptance to encapsulated xenogeneic myoblasts

Patrick Aebischer, Bernard Schneider

BACKGROUND: Cell encapsulation holds promise for the chronic delivery of recombinant proteins such as erythropoietin. Encapsulated xenogeneic mouse C2C12 myoblasts display long-term survival in the central nervous system whereas they do not in the subcutan ...

2001

Primary-backup replication: From a time-free protocol to a time-based implementation

André Schiper

Fault-tolerant control systems can be built by replicating critical components. However, replication raises the issue of inconsistency. Multiple protocols for ensuring consistency have been described in the literature. PADRE (Protocol for Asymmetric Duplex ...

2001

Primary-backup replication: From a time-free protocol to a time-based implementation

André Schiper

IEEE2001

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