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Toplam kayıt 41, listelenen: 31-40
DAG 4m telescope: assembly, integration and testing
(SPIE-Int Soc Optical Engineering, 2018-07-06)
AMOS with EIE as a main subcontractor, was awarded a contract in November 2014 for the design, manufacturing and installation of a 4m-class telescope for the Turkish Eastern Anatolia Observatory (DAG) situated at 3170 m ...
DAG-TGI: Turbulence generator instrument for DAG (Eastern Anatolia Observatory)
(SPIE-Int Soc Optical Engineering, 2018-07-18)
DAG (East Anatolia Observatory) Telescope has 4 m mirror with active optics (a0) and adaptive optics (AO) systems. In order to evaluate DAG's focal plane instruments and their installation, calibration and laboratory ...
Coordination in building an observatory: A case study of Eastern Anatolian Observatory (DAG)
(SPIE-Int Soc Optical Engineering, 2018)
Eastern Anatolian Observatory (DAG) is designed to build on one of the summits of Palandoken Mountains in Erzurum, Turkey, at an altitude of 3,151 meters. The building is under construction since 2015 and expected to be ...
Adaptive backstepping approach for 2-DOF telescopes despite unknown wind disturbance
(Institute of Electrical and Electronics Engineers Inc., 2019-07)
Small ground telescopes on the marked are widely used in many space observatories and scientific researches. There are three main problems in such telescopes; positioning of the focal point and the need of tuning for both ...
DAG telescope site studies and infrastructure for possible international co-operations
(SPİE-INT Soc Optical Engineering, 2016)
The selected site for the 4 m DAG (Eastern Anatolian Observatory in Turkish) telescope is at "Karakaya Ridge", at 3170 m altitude (3150 m after summit management). The telescope's optical design is performed by the DAG ...
Birleşik çöz/sıkıştır ve ilet tabanlı işbirlikçi çoklu erişim
(IEEE, 2012-04-18)
Bu bildiride, iki kullanıcılı bir işbirlikçi çoklu erişim kanalı için çöz-ilet ve sıkıştır-ilet tekniklerinin eş zamanlı kullanılmasına dayalı kodlama ve kodçözme teknikleri geliştiriyor, ve karşılık gelen erişilebilir ...
The flexible adaptive optics concept
(Instituto de Astrofisica de Canarias, 2017)
The availability of small deformable mirrors with large number of actuators and stroke, on one hand, and versatile wavefront sensors (pyramid WFS), on the other, allows the development of AO systems whose equivalent pitch ...
Effect of the computational domain selection on the calculation of axial fan performance
(International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC 2016, 2019)
In this study, the aerodynamic performance of a jet fan (considered as a free-inlet free-outlet axial fan which does not contain any duct at the upstream or downstream) is obtained by using CFD (Computational Fluid Dynamics) ...
Wind disturbance cancellation for smaller alt-azimuth telescopes
(Universidad Nacional Autonoma de Mexico, 2019-10)
This study focuses on eliminating unknown amplitude wind disturbance for 2-DOF alt-azimuth configuration small telescopes. An adaptive controller is designed to overcome wind disturbance as a set and forget system. The ...
Observatory building design: A case study of DAG with infrastructure and facilities
(SPIE, 2018-07-29)
[No abstract available]