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  • Article
    Citation - WoS: 4
    Citation - Scopus: 4
    The Geometry of Cuboctahedra in Medieval Art in Anatolia
    (Kim Williams Books, 2018) Hisarligil, Hakan; Bolak Hisarligil, Beyhan
    Numerous examples of cuboctahedra found in medieval-era buildings whose dates range from the early twelfth to the early fifteenth century across in Turkey indicate the significant use of such geometrical entities. Here we focus particularly on cuboctahedra with carved-out surfaces. The results show that although the unit cell, which is a combination of cubes and tetrahedra, sufficiently explains all examples, the octahemioctahedron and stella octangula strengthen the possibility of tetrahedral packing with its dual network and indicate a "vector matrix", as suggested by R. Buckminster Fuller. Therefore, their prevalent use as a "geometric solid" in a hollow cube frame and their appearance as an envelope of either tetrahedral packing or highly complex surfaces reveal almost 800-hundred-year-old examples of cuboctahedra as a Vector Equilibrium (VE) producing Isotropic Vector Matrix (IVM).
  • Article
    Citation - WoS: 8
    Citation - Scopus: 9
    Refrigeration Technology in Anatolian Seljuk and Ottoman Period Hospitals
    (Gazi Univ, 2014) Ozcan, Zuhal; Disli, Gulsen; Interior Architecture and Environmental Design
    The precise identification of ancient refrigeration systems is problematic, since nearly every technological advance is the result of long accumulation of human experience shaped according to the environmental, cultural, social and climatic conditions of the period and region. Besides, the scarcity of firsthand documentary records doubles the problem. Therefore, in the course of the discussions, being aware of the difficulties of the subject matter, it was an important phase to fill the gap in the area of history of refrigeration technology by the help of the hospital cases in Anatolia. It takes the form of a case study that focuses as much on the context and motives for the possible refrigeration technologies used and applied in historical hospital buildings.