Concept

Homogeneous relation

Related publications (104)

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Observations of mixing near the sides of a deep lake in winter

Ulrich Lemmin

The dissipation rate of turbulent kinetic energy per unit mass, epsilon, vertical eddy diffusivity, K-z, and the rate of dissipation of temperature variance, X, are estimated over the sloping sides of Lake Geneva both far from and near the bed, using tempe ...

American Society of Limnology and Oceanography2002

Ago Ergo Sum

Dario Floreano

In this paper I explore the hypothesis that some of today's robots might possess a form of consciousness whose substrate is a mere algorithm. First, consciousness is defined within an evolutionary framework as awareness of one's own state in relation to th ...

John Benjamins Publishing2002

The Degenerate Bounded Errors-in-Variables Model

Ali H. Sayed

We consider the following problem:

\min_{x \in {\cal R}^n} \min_{\|E\| \le \eta} \|(A+E)x-b\|

, where A is an

m \times n

real matrix and b is an n-dimensional real column vector when it has multiple global minima. This problem is an errors-in-variables ...

2001

Axiomatic theory of Sobolev spaces

Marc Troyanov

We develop an axiomatic approach to the theory of Sobolev spaces on metric measure spaces and we show that this axiomatic construction covers the main known examples (Hajlasz Sobolev spaces, weighted Sobolev spaces, Upper-radients, etc). We then introduce ...

2001

Falling Risk Evaluation in Elderly Using Miniature Gyroscope: Relation Between Gait and Risk of Falling

Kamiar Aminian, Philippe Robert, Bijan Najafi

Falls are the leading cause of injury-related morbidity and mortality among elderlypersons and are associated with significant adverse psychological andphysical consequences [1].Evaluating fall risk is important because it allows better targeting for preve ...

2001

First-principles study of NH3 exposed Si(001)2x1: Relation between N 1s core-level shifts and atomic structure

Alfredo Pasquarello

Using a first-principles approach, we assign N 1s core-level shifts at ammonium exposed Si(001)2x1 surfaces to definite bonding configurations of N atoms. Model structures are obtained by fully relaxing the atomic positions of N atoms in different bonding ...

2000

Microstructure, structural defects, and piezoelectric response of Bi4Ti3O12 modified by Bi3TiNbO9

Dragan Damjanovic

Microstructure, structural defects, and piezoelectric response of bismuth titanate (Bi4Ti3O12)(1-x) and bismuth titanium niobate (Bi3TiNbO9)(x) solid solution with x=0.05 and 0.2 were investigated. Depending on x and on the sintering temperature different ...

2000

An analysis of learner arguments in a collective learning environment

Pierre Dillenbourg, Patrick Jermann

This contribution analyses the arguments of students in a learning activity entitled "Argue Graph". This activity is intended to make students understand the relationship between learning theories and design choices in courseware development. The analysis ...

1999

Generic Broadcast

André Schiper, Fernando Pedone

Message ordering is a fundamental abstraction in distributed systems. However, usual ordering guarantees are purely syntactic'', that is, message semantics'' is not taken into consideration, despite the fact that in several cases semantic information a ...

1999

Metallicity Gradients and the Matter Distribution in Elliptical Galaxies

In this work I discuss on the basis of the instantaneous recycling approximation the possibility of determining a relation between matter distribution (luminous and dark) in elliptical galaxies and the metallicity distribution. Two different contexts are c ...

1998

The Degenerate Bounded Errors-in-Variables Model

Ali H. Sayed

We consider the following problem:

\min_{x \in {\cal R}^n} \min_{\|E\| \le \eta} \|(A+E)x-b\|

, where A is an

m \times n

real matrix and b is an n-dimensional real column vector when it has multiple global minima. This problem is an errors-in-variables ...

2001