Search results for " Instruments"

On-Orbit Degradation of Solar Instruments

2013

International audience; We present the lessons learned about the degradation observed in several space solar missions, based on contributions at the Workshop about On-Orbit Degradation of Solar and Space Weather Instruments that took place at the Solar Terrestrial Centre of Excellence (Royal Observatory of Belgium) in Brussels on 3 May 2012. The aim of this workshop was to open discussions related to the degradation observed in Sun-observing instruments exposed to the effects of the space environment. This article summarizes the various lessons learned and offers recommendations to reduce or correct expected degradation with the goal of increasing the useful lifespan of future and ongoing s…

Les enjeux de la professionnalisation des agents de développement. L’ingénierie territoriale prise en étau entre les conceptions organique et mécanis…

2011

International audience; Cet article relie les mécanismes de régulation de l’action publique territoriale à des enjeux de professionnalisation des agents de développement, acteurs pivot de l’ingénierie territoriale. Ceux-ci, inscrits dans des communautés épistémiques, posent les jalons d’une régulation pragmatique de l’action publique.Cependant, le registre concurrentiel de l’excellence territoriale couplé aux nouvelles formes de contrôles bureaucratique transforme les territoires de projet en segments d’exécution de politiques définies par des agences regroupant expertise et gestion. Au final, la personnalité bureaucratique des agents de développement l’emporte sur leur rôle d’ « agitateurs…

Remarks on negative interest rates

2016

Negative nominal interest rates have been observed in several segments of financial markets. Being only partly a result of supply and demand and mainly enforced by the central banks, negative interest rates are getting more and more popular. While it is relatively easy to identify the reasons for this quite strange phenomenon, the con-sequences, especially the long-term consequences, are not too clear for both scientists and ordinary observers. This paper is an attempt to formulate some remarks on causes, evidence, and possible effects of negative interest rates. A warning is issued, with respect to monetary policy and financial stability.

Maltrato y enfermedad mental. Estudio de personas con enfermedad mental, víctimas de maltrato

2011

Se realiza un trabajo de investigación sobre la victimización de personas con enfermedad mental, desde la perspectiva de que este colectivo es con frecuencia víctima de maltrato, a pesar de los prejuicios y el estigma que pende sobre él. Dada su especial vulnerabilidad social, los y las profesionales que atienden a esta población tienen la responsabilidad de visibilizar este fenómeno, y validar los instrumentos de diagnóstico que utilizan como útiles para detectar maltrato. The thesis involved research on the victimization of people with mental illness from the angle of this group often being the victim of abuse, despite the prejudice and stigma that hangs over it. Given its special social …

A learning organization : machine or human?

2001

Full parallax 3D display from Kinect v1 and v2

2017

We exploit the two different versions of Kinect, v1 and v2, for the calculation of microimages projected onto integral-imaging displays. Our approach is based on composing a three-dimensional (3-D) point cloud from a captured depth map and RGB information. These fused 3-D maps permit to generate an integral image after projecting the information through a virtual pinhole array. In our analysis, we take into account that each of the Kinect devices has its own inherent capacities and individualities. We illustrate our analysis with some imaging experiments, provide the distinctive differences between the two Kinect devices, and finally conclude that Kinect v2 allows the display of 3-D images …

Enhancing spatial resolution in digital holographic microscopy by biprism structured illumination

2014

In a recent Letter by Seo et al. [Opt. Lett. 37, 4976 (2012)], the numerical correction of the quadratic phase distortion introduced by the microscope objective in digital holographic microscopy (DHM) has been presented. In this comment, we would like to draw to the attention of the authors and the readers in general that this approach could not be the optimal solution for maintaining the accuracy of the quantitative phase via DHM. We recall that the use of telecentric imaging systems in DHM simplifies the numerical processing of the phase images and produces more accurate measurements.