Concept

Paraffine

Publications associées (10)

Ultra-Compact Ka-band Metamaterial Waveguide Filters, Fabricated by Lost-Wax Casting

Romain Christophe Rémy Fleury, Maliheh Khatibi Moghaddam

This paper proposes a novel technique for the design of miniaturized Ka-band filters based on locally resonant metamaterials (LRMs), which are fabricated monolithically using lost wax casting. We implement ultra-small metamaterial filters by exploiting a n ...

IEEE2021

Self-tracking Solar Concentration

Volker Günter Zagolla

Solar concentration is intended to decrease the cost of expensive solar cell material by replacing the solar cell with a focusing optical system as the initial receiving aperture. This reduces the amount of solar cell material needed but adds the need of t ...

EPFL2015

Tuneable PTC effect in polymer-wax-carbon composite resistors

Peter Ryser, Thomas Maeder, Caroline Jacq, Ludivine Ammon

Purpose: The resistivity dependence on temperature of composite resistors made of carbon fillers dispersed in an organic matrix are known to be strongly affected by the matrix thermal expansion. High positive temperature coefficient (PTC) effects, i.e. ess ...

Emerald2014

What impacts skin color in digital photos?

Albrecht Johannes Lindner, Stefan Winkler

Skin colors are important for a broad range of imaging applications to assure quality and naturalness. We discuss the impact of various metadata on skin colors in images, i.e. how does the presence of a metadata attribute influence the expected skin color ...

2014

Tuneable PTC effect in polymer-wax-carbon composite resistors

Peter Ryser, Thomas Maeder, Caroline Jacq, Ludivine Ammon

The resistivity dependence on temperature of composite resistors made of carbon fillers dispersed in an organic matrix are known to be strongly affected by the matrix thermal expansion. High positive temperature coefficient (PTC) effects, i.e. essentially ...

IMAPS Poland Chapter2013

Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) feedstock development and optimization for thermoplastic forming of thin planar and tubular oxygen separation membranes

Stefan Diethelm

This paper presents the processing steps for producing thin planar and tubular oxygen separation membranes by thermoplastic forming of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) with polystyrene (PS) and stearic acid (SA) as binder. The influence of powder conten ...

Elsevier Science Bv2013

Scratching as a Fracture Process: From Butter to Steel

Pedro Miguel Nunes Pereira de Almeida Reis

We present results of a hybrid experimental and theoretical investigation of the fracture scaling in scratch tests and show that scratching is a fracture dominated process. Validated for paraffin wax, cement paste, Jurassic limestone and steel, we derive a ...

American Physical Society2011

Integration column: Artificial ECM: expanding the cell biology toolbox in 3D

Matthias Lütolf

Many crucial cellular processes in our tissues are governed by complex, spatio-temporally regulated interactions between cells and their extracellular matrix (ECM). These interactions can be studied using well-established 3D in vitro model systems such as ...

2009

Paraffin-PDMS composite thermo microactuator with large vertical displacement capability

Nico de Rooij, Danick Briand, Herbert Shea

We have micromachined and tested the first paraffinPDMS composite thermal microactuator having multi shot large vertical displacement capabilities ( 160 um for 1 mm diameter device). A solid to liquid phase change of trapped paraffin into the PDMS is used ...

2006

Differences between MFI- and MEL-Type Zeolites in Paraffin Hydrocracking

Berend Smit, Michael Schenk

A crit. evaluation of published paraffin hydroconversion data shows that MEL-type zeolites preferentially hydrocrack paraffins where two Me groups are sepd. by a methylene group, whereas MFI-type zeolites prefer paraffins with geminal Me groups (preferably ...

2001

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