Yayın tarihi için Makine Mühendisliği Bölümü / Department of Mechanical Engineering listeleme
Toplam kayıt 79, listelenen: 21-40
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The DAG Project, a 4m class telescope: The telescope main structure performance
(SPIE, 2016)Dogu Anatolu Gözlemevi (DAG-Eastern Anatolia Observatory) Project is a 4m class optical, near-infrared Telescope and suitable enclosure which will be located at an altitude of 3.170m in Erzurum, Turkey. The DAG telescope ... -
Agile development approach for the observatory control software of the DAG 4m telescope
(SPIE, 2016)Observatory Control Software for the upcoming 4m infrared telescope of DAG (Eastern Anatolian Observatory in Turkish) is in the beginning of its lifecycle. After the process of elicitation-validation of the initial ... -
Eastern Anatolia Observatory (DAG): Recent developments and a prospective observing site for robotic telescopes
(Universidad Nacional Autonoma Mexico Instituto Astronomia, 2016)This document (Eastern Anatolia Observatory (DAG) is the new observatory of Turkey with the optical and near-infrared largest telescope (4 m class) and its robust observing site infrastructure. This national project consists ... -
Project management of DAG: Eastern Anatolia Observatory
(SPIE, 2016)The four meter DAG (Eastern Anatolia Observatory in Turkish) telescope is not only the largest telescope in Turkey but also the most promising telescope in the northern hemisphere with a large potential to offer scientific ... -
Integrated opto-dynamic modeling of the 4-m DAG telescope image quality performance
(SPIE-Int Soc Optical Engineering, 2016)The Turkish DAG 4-m telescope is currently through the final design stage. It is to be located on a 3170 m mountain top in Eastern Anatolia. The telescope will be a state-of-The art device, alt-Az mount with active primary ... -
The design of an adaptive optics telescope: the case of DAG
(SPIE, 2016-07-27)In this paper, we describe in detail the optical design of DAG, a new 4 m telescope for Turkey. DAG is an "adaptive optics friendly" telescope, in a sense that each design decision is taken considering the potential impact ... -
Status of the Focal Plane Instrumentation (FPI) Project of the 4 m DAG Telescope
(SPIE, 2016-08-09)DAG (Eastern Anatolia Observatory in Turkish) will be the newest and largest (4m) observatory of Turkey in both optical (VIS) and near-infrared (NIR) Owith its robust observing site infrastructure. The telescope is designedOto ... -
Design of a derotator for the 4 m DAG telescope
(SPIE-Int Soc Optical Engineering, 2016-08-09)This paper Silt our work on the design of a field derotator for the adaptive optics instruments platform of DAG (Dogu Anadolu Cozier vi), a new 4 in telescope for astronomical observations near the city of krzurum, l'urkey. ... -
Observatory building design: A case study of DAG with infrastructure and facilities
(SPIE, 2016-08-19)Eastern Anatolian Observatory (DAG), will be built in one of the well-known mountain ridges of Erzurum, Turkey, at latitude of 39°46'50, longitude of 41°13'35 and an altitude of 3.151 meters. As well as erecting the largest ... -
Frezeyle tornalamada takımda ortaya çıkan termal deformasyonların modellenmesi
(Gazi Universitesi Muhendislik-Mimarlik, 2017)Frezeyle tornalama işleminde işlemiş parça doğruluğu ve üretkenliği arttırarak işlem performansını iyileştirmek kesme kuvvetlerini ve takım ucundaki ısı kaynaklı deformasyonları kontrol etmekle mümkündür. Bu çalışmanın ... -
Mechanical and thermal modeling of orthogonal turn-milling operation
(Elsevier Science BV, 2017)Turn-milling is a relatively new machining technology which is performed for cutting of symmetrical or non-symmetrical rotational parts. To improve productivity, determination of cutting parameters in turn-milling is ... -
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 ... -
Extremum seeking control of uncertain systems
(Işık University Press, 2017)Extremum seeking is used in control problems where the reference trajectory or reference set point of the system is not known but it is searched in real time in order to maximize or minimize a performance function representing ... -
A gain-switched self-optimizer for braking controller
(John Wiley and Sons Ltd, 2017-06)An emergency braking controller is developed with improved operation characteristics near the maximum friction zone. The methodology is based on self-seeking a-priori unknown optimum operation point to maximize a performance ... -
Design of a global extremum seeking algorithm for an omni-directional robot model
(Romanian Soc Control Tech Informatics, 2017-06)A global extremum seeking algorithm is developed for a mobile robot model where the aim is to find the location of the most powerful signal source among the others. In other words, the control problem is to seek the global ... -
Project management and status update for DAG (Eastern Anatolia Observatory) the 4 meter VIS/IR optical telescope
(SPIE-Int Soc Optical Engineering, 2018)The new 4 m Turkish telescope, DAG (East Anatolian Observatory, Fig. 2), will be located on the summit of the mountain Konakli-Karakaya, at an altitude of 3170 m, near the city of Erzurum, Turkey. First light is expected ... -
A flexible adaptive optics concept for general purpose high angular resolution science on the DAG 4m telescope
(SPIE-Int Soc Optical Engineering, 2018)Thanks to the availability of high actuator density deformable mirrors (ALPAO 468 DM), the high versatility of the pyramid wavefront sensor and above all, the venue of essentially no noise EMCCD detectors, it becomes ... -
Numerical investigation of the effect of radial lip seal geometry on sealing performance
(IOP Publishing Ltd, 2018)Sealing elements are often needed in industry and especially in machine design. With the change and development of machine technology from day to day, sealing elements show continuous development and change in parallel ... -
Production of M1, M2 and M3 mirrors for DAG project (Belgium, Russia). Current status
(SPIE-Int Soc Optical Engineering, 2018)This paper describes the technology of production and testing of mirrors for DAG Telescope (Doge Anadolu Gozlemevi) produced by Belgium Company AMOS. JSC LZOS fulfils works on production and testing of three mirrors: primary ... -
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 ...