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Method, system and computer program for determining a reflectance distribution function of an object

Martin Vetterli, Loïc Arnaud Baboulaz, Paolo Prandoni

The invention refers to a method for analysing reflected light of an object. First a light angle distribution for a point of the object is determined. Then a plenoptic projector is controlled to illuminate the point of the object with the determined light ...

2014

Behaviour of nodal regions of reinforced concrete frames subjected to opening moments and proposals for their reinforcement

Aurelio Muttoni, Miguel Fernández Ruiz, Stefano Campana

The strength and deformation capacity of concrete frames is typically governed by their nodal regions behaviour. This is particularly relevant for frame corners subjected to opening bending moments, where premature brittle failures may develop depending on ...

Engineering Structures2013

Bandwidth enhancement of a wearable UWB antenna near a human arm

Anja Skrivervik, Nuno Miguel Faria Pires, Mohsen Koohestani

A dielectric sandwich loading technique is proposed to enhance impedance matching bandwidth of an antenna when it is placed close to the human body. This technique mitigates the body influence by confining the reactive fields in the dielectric loads. This ...

Wiley-Blackwell2013

Simulation-based uncertainty quantification of human arterial network hemodynamics

Alfio Quarteroni, Gianluigi Rozza, Peng Chen

This work aims at identifying and quantifying uncertainties from various sources in human cardiovascular system based on stochastic simulation of a one dimensional arterial network. A general analysis of different uncertainties and probability characteriza ...

Wiley-Blackwell2013

Texture mechanisms and microstructure of biaxial thin films grown by oblique angle deposition

Alireza Karimi, Ayat Karimi, Akshath Raghu Shetty

In order to understand the texture formation mechanism in thin films grown under oblique angle deposition (OAD), TiAlN films were deposited at room temperature (RT) under various incident angles. We show that both in-plane and out-of-plane crystallographic ...

Wiley-V C H Verlag Gmbh2012

Off-Axis Texture and Crystallographic Accommodation in Multicomponent Nitride Thin Films Deposited by Pulsed Magnetron Sputtering

Akshath Raghu Shetty

The study of texture in thin films is one of the possibilities to obtain information on the fundamental physical processes which govern the thin film growth. Near the substrate, the crystalline orientation of the coating layer will usually be influenced by ...

EPFL2012

A time-domain recursive method to analyse transient wave propagation across rock joints

Jian Zhao

The present investigation is concerned with transient wave propagation in a rock mass with a set of parallel joints by using a recursive method. According to the displacement field of a rock mass with a set of parallel joints, the interaction between four ...

Blackwell Publishing Ltd, Oxford2012

A Point is Normal for Almost All Maps beta x+ alpha mod 1 or Generalised beta-Transformations

Charles Pfister, Bastien Faller

We consider the map T-alpha,T-beta(x) := beta x + alpha mod 1, which admits a unique probability measure of maximal entropy. For x is an element of [0, 1], we show that the orbit of x is mu(alpha,beta)-normal for almost all (alpha, beta) is an element of [ ...

Cambridge University Press2009