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In this paper we present Finite Element (FEM) models for two different piezoresistive microphones, fabricated using the MultiMEMS process at SensoNor Technologies in Norway with an additional Deep Reactive Ion Etching step done at Sintef. We simulated the membrane displacement and the Eigen...

This paper presents and discusses a set of biaxial tests on two different polymer materials; PVC and HDPE. The biaxial tests are used to evaluate a hyperelastic–viscoplastic constitutive model involving the pressure-dependent Raghava yield criterion. The parameters in the model are calibrated from...

This chapter defines and discusses important concepts like risk, uncertainty, vulnerability and interdependency. In the literature, these concepts are used in various ways and there exists no common accepted terminology. Therefore, these terms are defined to provide a basis for consistent use...

Deterioration of metal quality caused by contamination (e.g. coatings) is an issue in remelting of aluminium scrap. Therefore molten metal quality from remelting sheet material with and without coating is compared. In the experiments the crucibles are placed inside a resistance furnace to ensure...

The work-hardening of the solution-strengthened aluminium alloy AA5182-O is studied as a function of strain rate at room temperature. The main aim is to characterize the influence of strain rate and dynamic strain ageing on the work-hardening of the material. Tensile tests with constant nominal...

The effect of natural ageing time before artificial ageing has been investigated in four Al – Mg – Si(– Cu) alloys, with 0.4 % Mg + 0.8 % Si and 0.8 % Mg + 0.4 % Si, both with and without 0.14 at.% Cu. The precipitate microstructure was quantified by means of transmission electron microscopy...

This study explores privacy challenges in Enterprise 2.0 (E2.0) in a large-scale multinational knowledge-intensive company. The study focuses on the dilemma of sociability vs. privacy likely to arise under E2.0 models, applying both social capital and privacy regulation theory. A qualitative...

Muon spin methods are very sensitive to nanoscale defects such as trace elements and vacancies in metals. This sensitivity is required when investigating Al-Mg-Si alloys, a complicated system in which diffusion-controlled phase transformations are responsible for the most important hardening...

An analytical model regarding the ceramic foam filter (CFF) as a network of branches (cylinders) has been developed to describe inclusion removal in CFFs used for aluminium filtration. The model based on measurements of filters with 30 pores per inch, should also predict behaviour of commercial...

As a step toward enabling snake robots to move in cluttered environments, this paper proposes a control strategy that combines environment adaptation with directional control in order to achieve straight line path following control in environments with obstacles. Moreover, the paper presents the...

Transmission electron microscopy (TEM) studies were performed on an undeformed and a 10 pct predeformed condition of a commercial Al-Mg-Si alloy (AA6060) to investigate the effect of deformation prior to aging 300 minutes at 463 K (190 °C) on precipitate microstructure and precipitate types...

SINTEF Byggforsk har vurdert kvaliteten på takstmennenes arbeid med boligsalgsrapporter basert på spørreundersøkelse blant forbrukere, dybdeintervju av personer som nylig har kjøpt eller solgt bolig, intervju/gruppeintervju med en ekspertgruppe, og egen gjennomgang av 42 boligsalgsrapporter. (Kun...