Toplam kayıt 1663, listelenen: 1-20

    • Yüz tanıma 

      Yıldırım, Mesut (İstanbul Kültür Üniversitesi / Fen Bilimleri Enstitüsü / Matematik Bilgisayar Anabilim Dalı, )
      Bu zamana kadar yapılan çalışmalarda, En Küçük Kareler methodu ve çoğu zaman istatistik alanında kullanılan Ridge Regresyon methoduna sıklıkla rastlanabilir. Bu çalışmada yüz tanıma sistemlerinde kullanılan sınıflandırma ...
    • Log-harmonik yalınkat fonksiyonlar 

      Özkan, Hatice Esra (İstanbul Kültür Üniversitesi / Fen Bilimleri Enstitüsü / Matematik Bilgisayar Anabilim Dalı, 4-06)
      Çalışmada oncelikle analitik ve harmonik fonksiyonlar teorisi ele ahnmiştir. Ardindan çalıma alani olarak log-harmonik fonksiyonlar teorisi segilmiştir. Log-harmonik fonksiyonlar analitik ve co-analitik olmak iizere iki ...
    • Roskovitin'in GSK-3 beta temelli taupatilerdeki etkisinin sinir hücre modelinde gösterilmesi 

      Gürkan, Berkay (İstanbul Kültür Üniversitesi / Fen Bilimleri Enstitüsü / Moleküler Biyoloji ve Genetik Anabilim Dalı / Moleküler Biyoloji-Genetik ve Biyoteknoloji Bilim Dalı, 216-08)
      Nörodejeneratif hastalıklar, beynin spesifik bölgelerindeki nöronlarin progresif ve geri dönüşümsüz kaybı ile karakterize edilen bir grup patolojiyi içermektedir. Nörodejeneratif hastalıklar göreceli olarak sıklıkla ...
    • On Scheduling Project Activities With Variable Expenditure Rates 

      Özdamar, Linet (KLUWER ACADEMIC PUBL, SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS, 1998-08)
      Commercial projects are undertaken with the expectation of maximizing financial returns. There are a variety of cash flow models in the literature in which payments, whose amounts depend on the type of contract quoted ...
    • Radioisotope X-ray Fluorescence and Neutron Activation Analyses of the Trace Element Concentrations of the Rainbow Trout 

      Akyüz, Tanıl; Başsarı, A; Şener, E; Yıldız, M; Kuçer, R; Kaplan, Z; Doğan, G; Akyüz, Sevim (CZECHOSLOVAK JNL OF PHYSICS, FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE 180 40, CZECH REPUBLIC, 1999)
      The muscles and livers of the ten rainbow trouts ( Oncorhynchus mykiss; N, 1752) obtained from Sapanca, Aquaculture Facility of Aquatic Products Faculty, The University of Istanbul (Turkey), have been analysed quantitatively ...
    • Neutron Induced Gamma-ray Spectroscopic and X-ray Fluorescence Investigations of Britholite Veins of Basoren Village (Turkey) 

      Akyüz, Tanıl; Bolcal, C; Kuçer, R; Sarıtepe, P; Akyüz, Sevim (CZECHOSLOVAK JNL OF PHYSICS, FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE 180 40, CZECH REPUBLIC, 1999)
      High resolution gamma-ray spectroscopic investigation of a mineral sample obtained from the deposits of the Basoren area, which is located about 670 km south-east of Ankara (Turkey), within the north-eastern margin of the ...
    • Electrochromic Properties of Sol-gel Deposited Ti-doped Vanadium Oxide Film 

      Özer, Nilgün; Sabuncu, Sevsen (ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND, 1999-01)
      Titanium-doped vanadium pentoxide, (100 - x)V2O5.xTiO(2) films with compositions ranging from 0 to 20 mole % titanium were prepared by using sol-gel dip coating techniques. Highly transparent (100 - x)V2O5.xTiO(2) films ...
    • A Hierarchical Planning System for Energy Intensive Production Environments 

      Özdamar, Linet; Birbil, SI (ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 1999-01-15)
      This paper describes a hierarchical production planning approach with decision support features for energy intensive industries with particular reference to a tile manufacturing factory. In the tiling industry, the facilities ...
    • A Genetic Algorithm Approach to a General Category Project Scheduling Problem 

      Özdamar, Linet (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 345 E 47TH ST, NEW YORK, NY 10017-2394 USA, 1999-02)
      A genetic algorithm (GA) approach is proposed for the general resource constrained project scheduling model, in which activities may be executed in more than one operating mode and renewable as well as nonrenewable resource ...
    • FRACTOP: A Geometric Partitioning Metaheuristic for Global Optimization 

      Demirhan, M; Özdamar, Linet; Helvacıoğlu, L; Birbil, SI (KLUWER ACADEMIC PUBL, SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS, 1999-06)
      We propose a new metaheuristic, FRACTOP, for global optimization. FRACTOP is based on the geometric partitioning of the feasible region so that search metaheuristics such as Simulated Annealing (SA), or Genetic Algorithms ...
    • A Note On the Use of a Fuzzy Approach in Adaptive Partitioning Algorithms for Global Optimization 

      Demirhan, Melek; Özdamar, Linet (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA, 1999-08)
      In global optimization, adaptive partitioning algorithms (APA) operate on the basis of partitioning the feasible region into subregions, sampling and evaluating each subregion, and selecting one or more subregions for ...
    • Hybrid Heuristics for the Multi-stage Capacitated Lot Sizing and Loading Problem 

      Linet, Özdamar (STOCKTON PRESS, HOUNDMILLS, BASINGSTOKE RG21 6XS, HAMPSHIRE, ENGLAND, 1999-08)
      The multi-stage capacitated lot sizing and loading problem (MCLSLP) deals with the issue of determining the lot sizes of product items in serially-arranged manufacturing stages and loading them on parallel facilities in ...
    • A Hierarchical Planning Approach for a Production-distribution System 

      Linet, Özdamar (TAYLOR & FRANCIS LTD, ONE GUNPOWDER SQUARE, LONDON EC4A 3DE, ENGLAND, 1999-11-10)
      A production-distribution model involving production and transportation decisions in a central factory and its warehouses is developed. The model is based on the operating system of a multi-national company producing ...
    • 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 ...
    • İnternet ve elektronik ticaret; elektronik ticaretin dünyada ve Türkiye'de gelişimi 

      Akyön, Fehmi Volkan (İstanbul Kültür Üniversitesi / Sosyal Bilimler Enstitüsü / İşletme Anabilim Dalı, 2000-06)
      Son yinni yılda iş dünyası bilgisayarı, üretimin otomasyonu, muhasebe-finansman uygulamaları, bilgi depolama ve işleme gibi ihtiyaçlarını son derece hızlı yapabilmek için kullanmıştır. Bu nedenle, bu alana bilgi işlem (data ...
    • Analysis of Solution Space-Dependent Performance of Simulated Annealing: The Case of the Multi-level Capacitated Lot Sizing Problem 

      Barbarasoğlu, G; Özdamar, Linet (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2000-08)
      This study describes an analysis of different neighbourhood transition schemes and their effects; on the performance of a general purpose simulated annealing (SA) procedure in solving the dynamic multi-level capacitated ...
    • Experiments with New Stochastic Global Optimization Search Techniques 

      Özdamar, Linet; Demirhan, M (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2000-08)
      In this paper several probabilistic search techniques are developed for global optimization under three heuristic classifications: simulated annealing, clustering methods and adaptive partitioning algorithms. The algorithms ...
    • A Decision Support Model for Customer Value Assessment and Supply Quota Allocation 

      Barbarasoğlu, G; Yazgaç, Tülin (TAYLOR & FRANCIS LTD, 11 NEW FETTER LANE, LONDON EC4P 4EE, ENGLAND, 2000-09)
      The aim of this study is to develop a decision support tool for a supplier in a value-chain environment. The supplier under consideration is assumed to provide a strategic product to a number of customers and needs to ...
    • An Integrated Lagrangean Relaxation-Simulated Annealing Approach to the Multi-level Multi-item capacitated lot sizing problem 

      Özdamar, Linet; Barbarasoğlu, G (ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2000-12-20)
      This study proposes a heuristic approach for the solution of the dynamic multi-level multi-item capacitated lot sizing problem (MLCLSP) with general product structures. The difficulty in solving MLCLSP is to provide ...
    • Environmental Perception-an Experimental Basic Design Atelier for Students of Architecture: An Assessment 

      Gökan, Rıfat Koray (PION LTD, 207 BRONDESBURY PARK, LONDON NW2 5JN, ENGLAND, 2001)
      An assessment is presented of the changes that have occurred in visual creative design activities of students participating in an experimental 'basic design atelier'. At the Department of Architecture, Istanbul Kültür ...