DSpace Repository

Browsing Faculty of Aeronautics and Astronautics / Havacılık ve Uzay Bilimleri Fakültesi by Title

Browsing Faculty of Aeronautics and Astronautics / Havacılık ve Uzay Bilimleri Fakültesi by Title

Sort by: Order: Results:

  • Classical flutter analysis of composite wind turbine blades including compressibility 
    Farsadi, Touraj; Kayran, Altan (WIND ENERGY / WILEY, 2021-01)
    For wind turbine blades with the increased slenderness ratio, flutter instability may occur at lower wind and rotational speeds. For long blades, at the flutter condition, relative velocities at blade sections away from ...
  • Classification of Punctures on Complete Flat Surfaces 
    Saglam, Ismail (International Electronic Journal of Geometry (IEJG) / Kazım İLARSLAN, 2021-10)
    We investigate the behavior of a complete flat metric on a surface near a puncture. We call a puncture on a flat surface regular if it has a neighborhood which is isometric to that of a point at infinity of a cone. We prove ...
  • Complete flat cone metrics on punctured surfaces 
    Saglam, Ismail (TURKISH JOURNAL OF MATHEMATICS / SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2019)
    We prove that each complete flat cone metric on a surface with regular or irregular punctures can be triangulated with finitely many types of triangles. We derive the Gauss-Bonnet formula for this kind of cone metrics. In ...
  • Dynamic response of filament winding angle on complex shaped mandrels 
    Torun, Ahmet Refah (INDUSTRIA TEXTILA / INST NATL CERCETARE-DEZVOLTARE TEXTILE PIELARIE-BUCURESTI, 2020-10)
    Aerodynamic parts such as rocket nose and heat shield related composites are mainly produced with filament winding machines. Winding angle of the reinforcement filament is the main parameter to determine the thermomechanical ...
  • EVALUATION OF LIMESTONE LAYER'S EFFECT FOR UWB MICROWAVE IMAGING OF BREAST MODELS USING NEURAL NETWORK 
    Aydin, Ahmet; Avsar Aydin, Emine (TEHNICKI GLASNIK-TECHNICAL JOURNAL / UNIV NORTH, 2017-07)
    X-ray mammography is widely used for detection of breast cancer. Besides its popularity, this method did not have the potential of discriminating a tumor covered with limestone from a pure limestone mass. This might cause ...
  • Evaluation of Perception and Attitudes towards Hybrid Vehicles: A Developing Country Approach 
    Torun, Ahmet Refah; Yigit, Ahmet Batuhan (OPUS © Uluslararası Toplum Araştırmaları Dergisi = International Journal of Society Researches / İdeal Kent Yayınları, 2019-09)
    The perceptions and attitudes of the society and potential consumers is a major issue to adopt energy-sustainable product innovations. Current critical issues such as global warming, reducing energy sources and air pollution ...
  • Fault tolerant control of a quadrotor based on incremental nonlinear dynamic inversion 
    Ahmadi Dastgerdi, Karim; Asadihendoustani, Davood; Nabavi Chashmi, Seyed Yaser (International Journal of Aeronautics and Astronautics (IJAA) / Selçuk Üniversitesi, 2022-04)
    The multirotor unmanned aerial vehicles (UAVs) have rapidly attracted interest of the researchers since they play a unique role in a variety of areas including the military, agriculture, rescue, and mining. Actuator fault ...
  • From Euclidean triangles to the hyperbolic plane 
    Saglam, Ismail (EXPOSITIONES MATHEMATICAE / ELSEVIER GMBH, 2022-06)
    We introduce a model of the hyperbolic plane which arises from Thurston's ideas on best Lipschitz maps between surfaces. More precisely, we apply Thurston's theory to the space of Euclidean triangles. We prove that the ...
  • Image processing based autonomous landing zone detection for a multi-rotor drone in emergency situations 
    Turan, Veysel; Avsar, Ercan; Asadihendoustani, Davood; Avsar Aydin, Emine (Turkish Journal of Engineering / Murat YAKAR, 2021-10)
    Flight safety and reliability improvement is an important research issue in aerial applications. Multi-rotor drones are vulnerable to motor failures leading to potentially unsafe operations or collisions. Therefore, ...
  • İkiz Tabliyeler Arasındaki Akışın Dairesel Kesitli Çubuk ile Kontrol Edilmesi 
    Durhasan, Tahir (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi = Cukurova University Journal of the Faculty of Engineering / Çukurova Üniversitesi, 2019-03)
    Bu çalışmada, uzun açıklıklı ikiz tabliyeler arasındaki akışın dairesel kesitli çubuk ile kontrol edilmesi hedeflenmiştir. İki tabliye arasındaki mesafenin tabliye yüksekliğine oranı L/H=1,7 ve dairesel kesitli çubuğun ...
  • Kavisli Delikli Plaka ile Girdap Kaynaklı Türbülanslı Akışın Kontrolü 
    Ozkan, Gokturk Memduh; Durhasan, Tahir; Pinar, Engin (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi = Cukurova University Journal of the Faculty of Engineering / Çukurova Üniversitesi, 2020-12)
    Bu çalışmada, dairesel bir silindir art izinde oluşan girdap kaynaklı türbülanslı akışın, farklı ve kısmi geçirgenlik oranlarına sahip kavisli delikli plaka (kontrol elemanı) ile kontrolü incelenmiştir. Ele alınan parametre ...
  • NACA 0015 Kanat Profilinin Etrafındaki Akışın Firar Kenarından Akış Emme ile Kontrol Edilmesi 
    Durhasan, Tahir (Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi = Bilecik Seyh Edebali University Journal of Science / Bilecik Şeyh Edebali Üniversitesi, 2019-09)
    Bu çalışmada, kanat firar kenarında uygulanan akış emme yönteminin NACA 0015 kanat profilinin aerodinamik performansı üzerine etkileri sayısal çalışma ile araştırılmıştır. Sayısal çözümler Reynolds sayısının Re=48000 ...
  • On the Moduli Space of Flat Tori Having Unit Area 
    Saglam, Ismail (International Electronic Journal of Geometry (IEJG) / Kazım İLARSLAN, 2021-04)
    Inspiring from Thurston's asymmetric metric on Teichmüller spaces, we define and study a natural (weak) metric on the Teichmüller space of the torus. We prove that this weak metric is indeed a metric: it separates points ...
  • Passive Flow Control around NACA 0018 Airfoil Using Riblet at Low Reynolds Number 
    Guler, Emre; Durhasan, Tahir; Karasu, Ilyas; Akbiyik, Hurrem (Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi (FBED) = Journal of The Institute of Science and Technology (JIST) / Iğdır Üniversitesi, 2021-09)
    In this study, aerodynamic capabilities of NACA 0018 airfoil is numerically investigated by installing riblet on the suction side of airfoil. Numerical results were obtained by ANSYS Fluent using k-kl-kw transition model ...
  • Passive Flow Control over an Airfoil by Control Rod at Low Reynolds Number 
    Durhasan, Tahir (JOURNAL OF APPLIED FLUID MECHANICS / ISFAHAN UNIVERSITY TECHNOLOGY, 2020-11)
    In the present study, the flow control mechanism of SD7062 airfoil by a rod illustrated using Particle image velocimetry (PIV) technique at pre-stall angles of attack at Reynolds number of Re = 30000. The rod was installed ...
  • Performance-based emergency landing trajectory planning applying meta-heuristic and Dubins paths 
    Haghighi, Hassan; Delahaye, Daniel; Asadi, Davood (APPLIED SOFT COMPUTING / ELSEVIER, 2022-03)
    Emergency Landing is a complex problem of optimal path planning of an impaired airplane in presence of obstacles, while the airplane performance characteristics have degraded. Some in-flight failures can affect the airplane ...
  • Prediction of gross calorific value of coal based on proximate analysis using multiple linear regression and artificial neural networks 
    Acikkar, Mustafa; Sivrikaya, Osman (TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES / TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2018)
    Gross calorific value (GCV) of coal was predicted by using as-received basis proximate analysis data. Two main objectives of the study were to develop prediction models for GCV using proximate analysis variables and to ...
  • Reference Breast Phantoms for Low-Cost Microwave Imaging 
    Aydin, Emine Avsar; Karaoglan, Selin Yabaci (TEHNICKI GLASNIK-TECHNICAL JOURNAL / UNIVERSITY NORTH, 2020-12)
    Microwave imaging provides an alternative method for breast cancer screening and the diagnosis of cerebrovascular accidents. Before a surgical operation, the performance of microwave imaging systems should be evaluated on ...
  • Silindir Etrafındaki Kararsız Akışın Farklı Türbülans Modelleri ile Sayısal Olarak İncelenmesi 
    Karasu, Ilyas (Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi / Bilecik Şeyh Edebali Üniversitesi, 2019)
    Bu çalışmada, kritik altı olan 5000 Reynolds sayısında silindir etrafındaki kararsız akış farklı türbülans modelleri ile sayısal olarak incelenmiş ve bu modellerin performansları test edilmiştir. Çalışmada, aynı şartlarda ...
  • The Effect of Limestone in Breast Cancer Detection by Microwaves 
    Avsar Aydin, Emine (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi / Çukurova Üniversitesi, 2017)
    Meme kanseri dünyada kadınlar arasındaki en yaygın kanser türüdür. Kanserin ilk aşamasındaki tespit, tümörlerin kontrolsüz olarak çoğalmasından ve diğer organlara yayılması açısından çok önemlidir. Mikrodalga görüntüleme ...

Search DSpace


Advanced Search

Browse

My Account