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  • Küçük Resim
    Öğe
    Avro-Amerikan hegemonyası ve “Avrupalı bir yönetmen” olarak Lars von Trier
    (Uluslararası Kıbrıs Üniversitesi, 2017) Köksal, Selma; Denli, Özlem
    Danimarkalı film yönetmeni Trier’in filmografisi, hem konuları açısından, hem de artistik eğilimleri ile bize Avrupa Kültürü ve düşüncesi üzerine oldukça önemli veriler sunmakta, dünyamızın içinde bulunduğu düşünsel, kültürel, siyasi bunalım ve çıkmazlara, bir yanıyla modernlik eleştirisi de sayılabilecek, bir yorumla yaklaşmaktadır. Bu yazıdaki amacımız, Trier düşüncesinde ‘Avro-Amerikan’ kavramı olarak adlandırdığımız bu temanın izini sürmek; film kuramı ve siyaset bilimi disiplinlerinin bakış açısından analiz etmektir. Trier’in genelde Batı, özelde ise ‘Avro-Amerika’ uygarlığına yaklaşımının tartışılması bu yazının genel çerçevesini oluşturmaktadır. İncelediğimiz filmlerin altmetinleri olarak işaret ettiğimiz kolektif suç, kefaret ve insan doğası kavramları Trier’in ‘siyasal klostrofobi’sine işaret etmektedir. Yönetmen, tarihi daima geri dönen bir şiddet ve çöküş hikâyesi, insanı da yok olmaya mahkûm ve layık bir varlık olarak tasvir eder. Söz konusu temaların Trier sinemasının biçimsel unsurlarıyla ilişkisinin incelenmesi de yazının amaçları arasında yer almaktadır.
  • Küçük Resim
    Öğe
    Coefficient bounds for a new subclass of analytic bi-close-to-convex functions by making use of Faber polynomial expansion
    (TÜBİTAK, 2017-07-25) Sakar, Fethiye Müge; Güney, Hatun Özlem
    Recently, in the literature, we can see quite a few papers about general coefficient bounds for subclasses of bi-univalent functions. However, we can find just a few papers about general coefficient estimates for subclasses of bi-close-to-convex functions. In the present study, we give and look into a new subclass of analytic and bi-close-to-convex functions in the open unit disk. Making use of the Faber series, we have an upper bound for the general coefficient of functions in this class. We also demonstrate the invisible behavior of the beginning coefficients of a special subclass of bi-close-to-convex functions.
  • Küçük Resim
    Öğe
    Imine containing C2-Symmetric chiral half sandwich h6-p-cymene-Ru(II)- phosphinite complexes: Investigation of their catalytic activityin the asymmetric transfer hydrogenation of ketones
    (Journal of Molecular Structure, 2020-01-15) Aral, Tarık; Paşa, Salih; Kayan, Cezmi; Meriç, Nermin; Sünkür, Murat; Aydemir, Murat; Baysal, Akın; Durap, Feyyaz; Saleh, Najmuldain Abdullah
    New chiral C2-symmetric bis(phosphinite) ligands containing imine group were synthesized from 1-({[(1R,2R)-2-{[(2-hydroxynaphthalen-1-yl)methylidene] amino}cyclohexyl]- imino}methyl)- naphthalen-2-ol and two equivalents of Ph2PCl, (i-Pr)2PCl or (Cy)2PCl, in high yields. Binuclear C2-symmetric half sandwich η6-p-cymene-Ru(II) complexes of the chiral phosphinite ligands were synthesized by treating of [Ru(η6-p-cymene)(μ-Cl)Cl]2 with the phosphinites in 1:1 M ratio in CH2Cl2. Their catalytic activities in asymmetric transfer hydrogenation (ATH) were investigated for the reaction of acetophenone derivatives with isopropyl alcohol. The corresponding optically active secondary alcohols were obtained in excellent levels of conversion (96–99%) and moderate enantioselectivity (up to 60% ee). Among three complexes investigated, complex 4 was the most efficient one.
  • Küçük Resim
    Öğe
    Sine-cosine algorithm-based optimization for automatic voltage regulator system
    (SAGE, 2019-04-01) Hekimoğlu, Baran
    A novel design method, sine-cosine algorithm (SCA) is presented in this paper to determine optimum proportional-integral-derivative (PID) controller parameters of an automatic voltage regulator (AVR) system. The proposed approach is a simple yet effective algorithm that has balanced exploration and exploitation capabilities to search the solutions space effectively to find the best result. The simplicity of the algorithm provides fast and high-quality tuning of optimum PID controller parameters. The proposed SCA-PID controller is validated by using a time domain performance index. The proposed method was found efficient and robust in improving the transient response of AVR system compared with the PID controllers based on Ziegler-Nichols (ZN), differential evolution (DE), artificial bee colony (ABC) and bio-geography-based optimization (BBO) tuning methods.
  • Küçük Resim
    Öğe
    Al-Makrizi’s Khitat and the markets in Cairo during the Mamluks era
    (Türk Tarih Kurumu, 2017-08) Ağır, Abdullah Mesut
    This study examines the markets in Cairo during the reign of the Mamlūks in the light of al-Makrīzī’s Chronicle al-Khitat. Besides those which were built during the Mamlūks era the commercial life were ongoing at the markets dating back to the Fatimids and the Ayyubids periods. The marketplaces generally occupied in al-Qasaba which was between Bāb al-Futūh in the north and Bāb al-Zuwayla in the south was the trading center of the city. Al-Qasaba is al-Mu’izz Street today which takes its name from the Fatimid Caliph al-Mu’izz li-Dinillah (341-364/953-975). The economic and social decline especially seen during the second half of the Mamlūks in the 15th century af-fected also the domestic markets stability and most of the sûqs disappeared depending on these conditions.