Search results for "Extern"

Machine consciousness: A manifesto for robotics

2009

Machine consciousness is not only a technological challenge, but a new way to approach scientific and theoretical issues which have not yet received a satisfactory solution from AI and robotics. We outline the foundations and the objectives of machine consciousness from the standpoint of building a conscious robot. © 2009 World Scientific Publishing Company.

2019

Pre-industrial money supply typically consisted of multiple, often foreign currencies. Standard economic theory implies that this entails welfare loss due to transaction costs imposed by currency exchange. Through a study of novel data on Finnish nineteenth-century parish-level currency conditions, we show that individual currencies had principal areas of circulation, with extensive co-circulation restricted to the boundary regions in between. We show that trade networks, defined here through the regional co-movement of grain prices, proved crucial in determining the currency used. Market institutions and standard price mechanisms had an apparent role in the spread of different currencies a…

The impact of corruption on sport demand

2020

PurposeThe article presents an empirical analysis that evaluates the effects of a systemic corruption scandal on the demand in the short and the long run. In 2006, the Calciopoli scandal uncovered the match rigging in the Italian soccer first division. The exemplary sportive sanction of relegating the primary culprit to the second division imposed further negative externalities on the other clubs. Should we prefer the sportive sanction on the team or the monetary fines for the club?Design/methodology/approachWe estimated two log-linear models of the demand side (stadium attendance) using a fixed effect estimator, on two panel data set made of all the Italian soccer clubs in the first and se…

Formation of magnetoconvection by photoabsorptive methods in ferrofluid layers

2013

Abstract A periodic concentration grating was induced in a layer of ferrofluid by photoabsorption and thermophoresis under the action of the applied uniform magnetic field. The application of the external field causes the appearance of an internal demagnetizing field within the layer and of magnetic forces due to the non-uniform distribution of concentration. The induced magnetic forces cause the appearance of parasitic microconvection within the layer. The experimental observations of the formation stage of the grating are interpreted to explain magnetoconvection, making use of numerical simulations.

Technology, Innovation and Knowledge

2016

The relevance of ideas is at the core of the IB field and has been captured in concepts like technology, innovation and knowledge. While these concepts have evolved over the last decades, the point that the ideas and the international connectivity are central for IB remains genuine. This paper is an attempt to take stock of the evolution of the concepts technology, innovation and knowledge in IB literature along the past five decades with a particular focus on the role of the Columbia Journal of World Business (CJWB) and the Journal of World Business (JWB) in this evolution. Likewise, our objective is to offer a research agenda for the coming decade. We proceed in two steps. First, we scrut…

Évaluer la qualité d'une formation à l'aune des représentations estudiantines

2014

Les pratiques qui consistent à interroger les bénéficiaires d'une formation pour en évaluer la qualité et impulser, par la prise en compte des opinions estudiantines, une dynamique de changement au sein des équipes pédagogiques tendent à s'imposer désormais dans l'enseignement supérieur, notamment au travers des exigences formulées par l'AERES. Prenant appui sur la formation des enseignants, cette recherche s'intéresse plus particulièrement au sentiment de professionnalisation des étudiants, pour questionner la validité scientifique des évaluations internes partant du point de vue de l'usager et montre les limites de leur exploitation dans le cadre d'évaluations externes visant à apprécier …

Brick Masonry Columns Externally Wrapped with Steel Wires under Concentric and Eccentric Loads

2017

This paper discusses an experimental investigation of clay brick columns that are externally strengthened by steel wire collars wrapping the horizontal mortar joints. The study aims to prove the effectiveness of the proposed strengthening technique and detect the efficiency of different numbers of steel collars. Additionally, the effect of eccentric loading is investigated. This paper proves that an analytical expression available in the previous literature can be modified to provide the strength of the equivalent homogeneous cross section in simple compression. To this aim, the biaxial strength domain of the bricks is modified to account for the lateral pressure exerted by the steel collar…

Shear-aligned block copolymer monolayers as seeds to control the orientational order in cylinder-forming block copolymer thin films

2016

We study the dynamics of coarsening of a cylinder-forming block copolymer thin film deposited on a prepatterned substrate made of a well-ordered block copolymer monolayer. During thermal annealing the shear-aligned bottom layer drives extinction of the disclinations and promotes a strong orientational correlation, disturbed only by dislocations and undulations along the cylinders of the minority phase. The thin film bilayer system remains stable during annealing, in agreement with self-consistent field theory results that indicate that although the thickness of a stack of two monolayers is not at the optimum thickness condition, it is very close to equilibrium. Phase field simulations indic…

Analysis of multipactor RF breakdown in a waveguide containing a transversely magnetized ferrite

2016

In this paper, the multipactor RF breakdown in a parallel-plate waveguide partially filled with a ferrite slab magnetized normal to the metallic plates is studied. An external magnetic field is applied along the vertical direction between the plates in order to magnetize the ferrite. Numerical simulations using an in-house 3-D code are carried out to obtain the multipactor RF voltage threshold in this kind of structures. The presented results show that the multipactor RF voltage threshold at certain frequencies becomes considerably lower than for the corresponding classical metallic parallel-plate waveguide with the same vacuum gap

Investigation on Application of Basalt Materials as Reinforcement for Flexural Elements of Concrete Bridges

2015

Basalt polymers are rather new materials for civil engineering; therefore, identification of peculiarities and limitations of application of such polymers in concrete structures (particularly bridges) is of vital importance. This paper experimentally investigates deformation behaviour and cracking of flexural elements, which are predominant parameters governing serviceability of the bridges. Unlike a common practice, the present study is not limited by the analysis of concrete beams reinforced with the polymer bars; it also considers effectiveness of basalt fibre reinforced polymer sheets for repairing the beams. The analysis has revealed that a combination of the high strength and elastici…