Monitoring of the environmental conditions inside the dome of the 4m Blanco Telescope at CTIO

Between February and April 2009 a number of ultrasonic anemometers, temperature probes and dust sensors were operated inside the CTIO Blanco telescope dome. These sensors were distributed in a way that temperature and 3 dimensional wind speeds were monitored along the line of sight of the telescope. During telescope operations, occasional seeing measurements were obtained using the Mosaic CCD imager and the CTIO site monitoring MASS-DIMM system. In addition, also a Lunar Scintillometer (LuSci) was operated over the course of a few nights inside the dome. We describe the instrumental setup and first preliminary results on the linkage of the atmospheric conditions inside the dome to the overall image quality

How to Monte-Carlo Simulate the Optical Turbulence Boilingbeyond the Frozen Flow Hypothesis

Proceedings of the Symposium on Seeing, n/a, pp. 208-209 (2007)International audienc

An optical turbulence profiler for the terrestrial atmosphere boundary-layer

Proceedings of the Symposium on Seeing, n/a, pp. 26-28 (2007)International audienc

Simulation of pupil-plane observation of angle-of-arrival fluctuations in daytime turbulence

Optics in Atmospheric Propagation and Adaptative Systems VI, eds. J. D. Gonglewski and K. Stein, Proccedings of SPIE, Bellingham, WA 5237, pp. 238-248 (2004)International audienc

Temporal characterization of atmospheric turbulence with the Generalized Seeing Monitor instrument

International audienc

MOSP: Monitor of Outer Scale profile

The outer scale profile is a key parameter for the specification and optimization of the Adaptive Optics systems for the Extremely Large Telescopes. A new instrument MOSP for L0(h) extraction has been developed and several campaigns have been carried out at Mauna Kea, Paranal and now at Dome C in Antarctica. The MOSP instrument and results obtained during his observation campaigns are presented and discussed

The Use of Mycoendophyte-Based Bioformulations to Control Apple Diseases: Toward an Organic Apple Production System in the Aurès (Algeria)

The present study aims to investigate the effectiveness of bioformulations based on endophytic fungi to control apple scab and Valsa canker disease in two orchards in the Aurès region (Algeria). In both orchards, the results showed that the treatment of senescent apple leaves by invert emulsions containing Trichoderma longibrachiatum and Chaetomium globosum harmed the ascogenesis of winter forms of Venturia inaequalis by reducing the number of ascospore-ejecting asci, the number of morphologically mature asci, and a considerable increase in the immature asci number. This antifungal activity was more essential in soil-incorporated leaves, showing the importance of the combination of treatments with cultural practices to efficiently control the apple scab disease. Furthermore, the disease incidence decreased by 52.63% and 50.68% in R’haouat and Bouhmama orchards, respectively. Moreover, the treatment of Valsa ceratosperma cankers with a biogel containing the endophytic yeast Metschnikowia sp. led to wound healing varying from 43.52% and 87.97% after 120 days but remained more considerable than conventional treatment with Folicur (tebuconazol). The current results open real opportunities concerning the implementation of eco-friendly and potent apple protection systems