Concept

Lead smelting

Publications associées (37)

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search

Solving an Avionics Real-Time Scheduling Problem by Advanced IP-Methods

Friedrich Eisenbrand, Martin Niemeier

We report on the solution of a real-time scheduling problem that arises in the design of software-based operation control of aircraft. A set of tasks has to be distributed on a minimum number of machines and offsets of the tasks have to be computed. The ta ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2010

What Can Be Expected From Lead-Free Piezoelectric Materials?

Dragan Damjanovic, Li Jin, Naama Klein, Viktor Porokhonskyy

The reasons for the lower piezoelectric properties in the most studied lead-free piezoelectrics, modified (K,Na)NbO3 and (Bi0.5Na0.5)TiO3, are discussed. Contributions from domain wall motion and properties at the morphotropic phase boundary are considered ...

2010

High-Strain Lead-free Antiferroelectric Electrostrictors

Dragan Damjanovic

Research on lead-free piezoceramics has dramatically increased over the last years due to stringent legislation demanding to phase out current lead- containing piezoceramics. The use of electrostrictive materials for electric-field induced strain has been ...

2009

Lead-free low-firing thick-film resistors based on bismuth glasses and ruthenium oxide

Peter Ryser, Claudio Grimaldi, Thomas Maeder, Caroline Jacq

Recent developments in thick-film technology have seen the widespread introduction of lead- free alternative to traditional conductive, dielectric and overglaze compositions. Resistors, however, have lagged behind this trend, as developing balanced and wel ...

IMAPS PL chapter2009

Elaboration d'outils pour l'investigation et l'assainissement des stands de tirs

Bruno Chappuis

Switzerland has about 6,000 shooting ranges, of which 2,000 are still in use. These activities generate a significant lead pollution. FOEN estimated 200 tons of lead is fired each year. This Master Project has been realized with the consultancy office CSD ...

2009

Reliability Analysis of Lead-free Solders

John Botsis, Joël Cugnoni

In this study, a deep analysis of the reliability of lead-free (SnAgCu) solders in comparison with tin-lead solders have been done for a particular aerospace application. Creep properties of this solder composition have been investigated, and results have ...

Int Assoc Engineers-Iaeng, Unit1, 1-F, 37-39 Hung To Road, Kwun Tong, Hong Kong, 00000, Peoples R China2008

Reliability analysis of lead-free solders for an aerospace application

A deep analysis of the reliability of lead-free (SnAgCu) solders in comparison with tin-lead solders have been done for a particular aerospace application, SwissCube’s motherboard (MB). Since 2006, using Pb in consumer electronics has been banned. Aerospac ...

2008

Reliability analysis of lead-free solders for an aerospace application

2008

On the shape of H2 performance criteria

Ljubisa Miskovic

An H2 control performance criterion dependent on a controller parameter vector is analyzed from the point of view of evaluating the domain of attraction of its global minimum when a gradient-based algorithm is used in tuning the parameters. The objective o ...

IFAC2007

Subsolidus phase equilibria in the PbO-poor part of the TiO2–PbO–SiO2 system and its application in low-temperature thick-film dielectrics

Thomas Maeder, Caroline Jacq, Marko Hrovat

Subsolidus equilibria in the PbO-poor part of the TiO2–PbO–SiO2 diagram were studied with the aim of investigating possible applications for low-temperature thick-film dielectrics. The tie lines are between PbTiO2 and PbSiO3, and between PbTiO3 and SiO2. T ...

2006