Now showing items 1-20 of 112

    • The comparison of different mathematical methods to determine the BOD parameters, a new developed method and impacts of these parameters variations on the design of WWTPs 

      Şibil, Rahim; Berkün, Mehmet; Bekiroğlu, Serkan (Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 201-01-15)
      One of the most common tests for the determination of strength and organic content of wastewater is the biochemical oxygen demand (BOO). This test is widely applied to define organic water pollution and to control the ...
    • Thermal investigation of acid-activated clay minerals 

      Sarıer, Nihal; Güler, Çetin (Elsevier, 1987-09-30)
      Samples of the clay mineral from the Çanakkale reserve in Turkey were activated with sulphuric acid under three different sets of conditions. DTA and TG curves of both natural and activated samples were then obtained and ...
    • β-Carotene adsorption on acid-activated montmorillonite 

      Sarıer, Nihal; Güler, Çetin (1988-05)
      The adsorption of β-carotene from solution in benzene on acid-activated Canakkale montmorillonite of Turkey has been investigated. The adsorption isotherm had two steps. The first step was of the Langmuir type, and the ...
    • The mechanism of β- Carotene adsorption on activated montmorillonite 

      Sarıer, Nihal; Güler, Çetin (Springer-Verlag, 1989-07)
      The variations in the structure of mineral during adsorption have been examined comparing the results of X-ray diffraction (XRD), differential thermal analysis (DTA), thermogravimetry (TG) and infrared (IR) spectroscopy ...
    • Kinetics of the thermal dehydration of acid-activated montmorillonite by the rising temperature technique 

      Sarıer, Nihal; Güler, Çetin (1990)
      The activation energies of dehydration and combustion of organic materials in a clay sample, and of dehydration of natural and acid-activated montmorillonite have been determined using a rising temperature programme ...
    • The Mechanism of Acid Activation of Montmorillonite 

      Güler, Çetin (TÜBİTAK Yayınları, 1991-01)
    • Anchorage of Reinforcement in High Strength Concrete Elements 

      Yerlici, Vedat; Ersoy, Uğur; Özturan, Turan; Türk, Ahmet Murat; Özden, Şevket (1995)
    • A Fuzzy Areal Assessment Approach for Potentially Contaminated Sites 

      Özdamar, Linet; Demirhan, M; Özpınar, A; Kılanç, B (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2000-04)
      This article describes a new fuzzy areal site assessment approach in the detection of contaminated zones within a site which is under environmental investigation. Conventional techniques utilized in this held are mostly ...
    • Case study: Izmit domestic and industrial water supply build-operate-transfer project 

      Şentürk, H. A.; Yazıcı, G.; Kaplanoğlu, S. B. (ASCE-AMER SOC CIVIL ENGINEERS, 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA, 2004-06)
      The "build, operate, and transfer model" (BOT) is a financing model, which is used in many developing countries to finance new infrastructure projects with private sector participation. The BOT method foresees the financing, ...
    • Subsurface characterization at ground failure sites in adapazari, Turkey 

      Bray, J. D.; Sancio, R. B.; Durgunoğlu, T.; Önalp, A.; Youd, T. L.; Stewart, J. P.; Seed, R. B.; Çetin, O. K.; Baturay, M. B.; Christensen, C.; Karadayılar, T. (ASCE-AMER SOC CIVIL ENGINEERS, 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA, 2004-07)
      Ground failure in Adapazari, Turkey during the 1999 Kocaeli earthquake was severe. Hundreds of structures settled, slid, tilted. and collapsed due in pail to liquefaction and ground softening. Ground failure was more severe ...
    • Diagnosis of the transition from rock soil in a granodiorite 

      Arel, E.; Önalp, A. (ASCE-AMER SOC CIVIL ENGINEERS, 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA, 2004-09)
      This paper describes an attempt to develop a method to define when granodiorite loses its properties as a rock and transforms into soil material. The research program approached the problem from a mechanistic point of view ...
    • Dynamic behaviour of seismically isolated cylindrical offshore storage tanks 

      Yazıcı, Gökhan; Mastanzade, Nijat (AMER SOC MECHANICAL ENGINEERS, THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA, 2005)
      Cylindrical offshore storage tanks are mainly used to store critical liquids such as petroleum and LNG. Failure of these tanks after an earthquake not only results in high financial losses but can also create an environmental ...
    • Dynamic behavior and optimization of offshore gravity platforms 

      Mastanzade, Nıjat S.; Yazıcı, Gökhan (ASME-AMER SOC MECHANICAL ENG, THREE PARK AVE, NEW YORK, NY 10016-5990 USA, 2005-05)
      This paper presents the results of a dynamic investigation with the aim of determining both the optimal shape of an offshore gravity platform column and the required mass of the infill water The natural frequency formulation ...
    • FE based mode interaction analysis of thin-walled steel box columns under axial compression 

      Kıymaz, Güven (ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2005-06)
      This paper presents the Finite Element (FE) analysis based mode interaction analysis of thin-walled steel box columns under axial compression. Earlier theoretical results on the optimum design of axially compressed box ...
    • Corrosion of reinforcement in relation to presence of defects at the interface between steel and concrete 

      Söylev, Tayfun Altuğ; Francois, R. (ASCE-AMER SOC CIVIL ENGINEERS, 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA, 2005-08)
      In this study, steel-concrete interface defects were analyzed in order to define their potential to induce corrosion. Various types of steel-concrete interface defects were classified into two main groups: macrodefects and ...
    • Strength and stability criteria for thin-walled stainless steel circular hollow section members under bending 

      Kıymaz, Güven (ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2005-10)
      A series of tests consisting of various cross-section geometries were performed on structural stainless steel circular hollow sections (CHS) subjected to bending. The test program comprised a total of eight tests on CHS ...
    • ISO 9000 in construction: An examination of its application in Turkey 

      Türk, Ahmet Murat (2006)
      ISO 9000, the quality management system standards developed by the International Standards Organization (ISO), is widely used inthe construction industry, as it is in all industries in the world. Recently, a growing interest ...
    • Effects of bar-placement conditions on steel-concrete bond 

      Söylev, Tayfun Altuğ; Francois, Raoul (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2006-03)
      Vertical sections exhibit a variety of factors that affect the bond between the embedded steel bars and the concrete, like casting position, concrete characteristics, and compaction procedure. The results obtained in this ...
    • ISO 9000 in construction: An examination of its application in Turkey 

      Türk, Ahmet Murat (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2006-04)
      ISO 9000, the quality management system standards developed by the International Standards Organization (ISO), is widely used in the construction industry, as it is in all industries in the world. Recently, a growing ...
    • Effect of introducing RC infill on seismic performance of damaged RC frames 

      Türk, Ahmet Murat; Ersoy, Uğur; Özcebe, Güney (TECHNO-PRESS, PO BOX 33, YUSEONG, DAEJEON 305-600, SOUTH KOREA, 2006-06-30)
      The main objective of this study was to investigate the seismic behavior of damaged reinforced concrete frames rehabilitated by introducing cast in place reinforced concrete infills. Four bare and five infilled frames were ...