3,473 research outputs found
TOWARD A NEW EUROPE: THE LIVESTOCK AND MEAT INDUSTRIES
Livestock Production/Industries,
Adaptive Optics Simulations for Siding Spring
Using an observational derived model optical turbulence profile (model-OTP)
we have investigated the performance of Adaptive Optics (AO) at Siding Spring
Observatory (SSO), Australia. The simulations cover the performance for AO
techniques of single conjugate adaptive optics (SCAO), multi-conjugate adaptive
optics (MCAO) and ground-layer adaptive optics (GLAO). The simulation results
presented in this paper predict the performance of these AO techniques as
applied to the Australian National University (ANU) 2.3 m and Anglo-Australian
Telescope (AAT) 3.9 m telescopes for astronomical wavelength bands J, H and K.
The results indicate that AO performance is best for the longer wavelengths
(K-band) and in the best seeing conditions (sub 1-arcsecond). The most
promising results are found for GLAO simulations (field of view of 180
arcsecs), with the field RMS for encircled energy 50% diameter (EE50d) being
uniform and minimally affected by the free-atmosphere turbulence. The GLAO
performance is reasonably good over the wavelength bands of J, H and K. The
GLAO field mean of EE50d is between 200 mas to 800 mas, which is a noticeable
improvement compared to the nominal astronomical seeing (870 to 1700 mas).Comment: 15 pages; accepted for publication in PAS
Importance and Association of Phytotherapy with Western Medicine in the Treatment of Diseases in Athieme in South-West Benin
The phenomenon of migration is an old one by which the migrants come to stisfy their needs in order to improve their conditions of life. In fact, the goal of this research is offering to throw more light in the factors that justify the migration flow of Gulmanceba in the town of Banikoara and the influence of their economic contribution to development. The methodologic procedure used is a mixed one at the same time qualitative and quantitative. The empirical datas have been analyzed with the saftwares CSPS, SPSS, word and Excel 2007 on the basis of the strategic analysis of Crozier and Friedberg (1977). For the data collection, the documentary research, the interview and observation are the technics used with other tools such as “interview guide” “questionnaire”, the “observation grill” and the digital camera. In total, 109 persons have been questioned among whom the Gulmanceba migrants, the natives and the local leaders. At the end of this research it has been noticed that the Gulmanceba are effective vectors that intervene everywhere in farming, the trading of adult rate fuel, manufactured products, loose pieces and sand extraction. All those economic activities positively impact the town's economiy
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