Yazar "Dengiz, Berna" için Mühendislik Fakültesi / Faculty of Engineering listeleme
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Aintshop Production Line Optimization Using Response Surface Methodology
Dengiz, Berna; Belgin, Onder (2007)This paper deals with the problem of determining the optimum number of workstations to be used in parallel and workers at some stations using simulation optimization approach in a paint shop line of an automotive factory ... -
Airfoil-slat arrangement model design for wind turbines in fuzzy environment
Atalay, Kumru Didem; Dengiz, Berna; Yavuz, Tahir; Koc, Emre; Ic, Yusuf Tansel (2020)In this study, a multi-element wind turbine blade that consists of NACA 6411 and NACA 4412 leading-edge slat design is investigated computationally. Optimum design parameters of the slatted wind turbine blade leading to ... -
Analysis of the manufacturing flexibility parameters with effective performance metrics: a new interactive approach based on modified TOPSIS-Taguchi method
Ic, Yusuf Tansel; Sasmaz, Turgut; Yurdakul, Mustafa; Dengiz, Berna (2022)Flexibility is one of the most important strategy parameters to achieve a long-term successful performance for a manufacturing company. Studies in the literature aim to operate a manufacturing system at optimum levels of ... -
Analysis of the Robustness of the Operational Performance Using a Combined Model of the Design of Experiment and Goal Programming Approaches for a Flexible Manufacturing Cell
Ic, Yusuf Tansel; Yurdakul, Mustafa; Dengiz, Berna; Sasmaz, Turgut (2023)A combined model of a 2(k) design of experiment (DOE) and goal programming (GP) approaches is presented to determine optimum levels of input variables and analyze their robustness for a multiobjective performance of a ... -
Applications of Deep Learning Techniques to Wood Anomaly Detection
Celik, Yaren; Guney, Selda; Dengiz, Berna; Xu, J; Altiparmak, F.; Hassan, MHA; Marquez, FPG (2022)Wood products and structures have an important place in today's industry. They are widely used in many fields. However, there are various difficulties in production systems where wood raw material is under many processes. ... -
Automated Tuberculosis Detection Using Pre-Trained CNN and SVM
Oltu, Burcu; Guney, Selda; Dengiz, Berna; Agildere, Muhtesem (2021)Tuberculosis (TB) is a dreadfully contagious and life-threatening disease if left untreated. Therefore, early and accurate diagnosis is critical for treatment. Today, invasive, expensive, or time-consuming tests are performed ... -
Buffer Allocation and Performance Modeling in Asynchronous Assembly System Operations: An Artificial Neural Network Metamodeling Approach
Altiparmak, Fulya; Dengiz, Berna; Bulgak, Akif A. (2007)This article investigates metamodeling opportunities in buffer allocation and performance modeling in asynchronous assembly systems ( AAS). Practical challenges to properly design these complex systems are emphasized. A ... -
Comparative Study for Tuberculosis Detection by Using Deep Learning
Karaca, Busra Kubra; Guney, Selda; Dengiz, Berna; Agildere, Muhtesem (2021)Tuberculosis (TB) is an infectious disease which becomes a significant health problem worldwide. Many people have been affected by this disease owing to deficiency of treatment and late or inaccuracy of diagnosis. Therefore, ... -
Crew Pairing Optimization Based On Hybrid Approaches
Aydemir-Karadag, Ayyuce; Dengiz, Berna; Bolat, Ahmet (2013)The crew pairing problem (CPP) deals with generating crew pairings due to law and restrictions and selecting a set of crew pairings with minimal cost that covers all the flight legs. In this study, we present three different ... -
A cross entropy approach to design of reliable networks
Dengiz, Berna; Altiparmak, Fulya (2009)One of the most important parameters determining the performance of communication networks is network reliability. The network reliability strongly depends on not only topological layout of the communication networks but ... -
Design Of Reliable Communication Networks: A Hybrid Ant Colony Optimization Algorithm
Dengiz, Berna; Altiparmak, Fulya; Belgin, Onder (2010)This article proposes a hybrid approach based on Ant Colony Optimization (ACO) and Simulated Annealing (SA), called ACO_SA, for the design of communication networks. The design problem is to find the optimal network topology ... -
Development of A Decision Support System for Robot Selection
Ic, Yusuf Tansel; Yurdakul, Mustafa; Dengiz, Berna (2013)With the availability of more different robot types and models along with their separate specifications, selecting the most appropriate robot is becoming more difficult and complicated for companies. Furthermore, a common ... -
Development of a Decision Support System for Selection of Reviewers to Evaluate Research and Development Projects
Kocak, Serdar; Ic, Yusuf Tansel; Sert, Mustafa; Atalay, Kumru Didem; Dengiz, Berna (2023)The evaluation of Research and Development (R&D) projects consists of many steps depending on the government funding agencies and the support program. It is observed that the reviewer evaluation reports have a crucial ... -
The development of a reviewer selection method: a multi-level hesitant fuzzy VIKOR and TOPSIS approaches
Kocak, Serdar; Ic, Yusuf Tansel; Atalay, Kumru Didem; Sert, Mustafa; Dengiz, Berna (2021)This paper proposes a new approach for the selection of reviewers to evaluate research and development (R&D) projects using a new integrated hesitant fuzzy VIKOR and TOPSIS methodology. A reviewer selection model must have ... -
Driver Performance Appraisal Using GPS Terminal Measurements: A Conceptual Framework
Simsek, Baris; Pakdil, Fatma; Dengiz, Berna; Testik, Murat Caner (2013)Objective measurement for performance appraisal is vital but rarely conducted in a methodologically sound manner. In this paper, we provide a thorough assessment of how objective and fair performance appraisals of drivers ... -
The Efficiency of Variance Reduction in Manufacturing and Service Systems: The Comparison of the Control Variates and Stratified Sampling
Eraslan, Erguen; Dengiz, Berna (2009)There has been a great interest in the use of variance reduction techniques (VRTs) in simulation output analysis for the purpose of improving accuracy when the performance measurements of complex production and service ... -
Fractional Universal Kriging Metamodel
Balaban, Muzaffer; Dengiz, Berna (2022)In this study, a Kriging-based metamodel is proposed that can be used instead of the simulation model for complex problems where data generation with a simulation model may be costly. In this new model structure, which is ... -
A General Neural Network Model for Estimating Telecommunications Network Reliability
Altiparmak, Fulya; Dengiz, Berna; Smith, Alice E. (2009)This paper puts forth a new encoding method for using neural network models to estimate the reliability of telecommunications networks with identical link reliabilities. Neural estimation is computationally speedy, and can ... -
A Genetic Algorithm for the Redundancy Allocation Problem with Repairable Components
Sahin, Merve Uzuner; Dengiz, Orhan; Dengiz, Berna (2022)The complexity of the structures of modern engineering systems in the communication and electronic fields, the demand for high reliable system evaluation methods has increased. While improving the system's reliability, the ... -
A Hybrid Simulated Annealing For A Multi-Objective Stochastic Assembly Line Balancing Problem
Cakir, Burcin; Dengiz, Berna; Altiparmak, Fulya; Xia, GP; Deng, XQ (2008)Asssembly line balancing is the problem of assigning tasks to the workstations, while optimizing one or more objectives without violating restrictions imposed on the line. In practice, task times may be random due to the ...