Yazar "Atalay, Kumru Didem" için Mühendislik Fakültesi / Faculty of Engineering listeleme
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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 True Random Number Generation Method Utilizing FM Radio Signals
Tanyer, Suleyman Gokhun; Inam, Sitki Cagdas; Atalay, Kumru Didem (2015)Random number generator (RNG)'s utilize some source of entropy. Various RNGs; pseudo, quasi and true RNGs provide observed samples for given distributions which are necessary in statistical signal processing and simulations ... -
A Case Study on Shopping Malls Attributes for Young Consumers
Can, Gulin Feryal; Kurtulmusoglu, Feride Bahar; Atalay, Kumru Didem (2016)Purpose - This study aims to determine the mall criteria that are the most crucial for the youth market by determining the winning brand in comparison to other offerings to understand what is required to gain a competitive ... -
A Comparative Holistic Fuzzy Approach for Evaluation of the Chain Performance of Suppliers
Eraslan, Ergun; Atalay, Kumru Didem (2014)The competition between the companies in the dynamic market conditions has made the Supply Chain Management (SCM) a more important issue. The companies which have organized their supply chain effectively have obtained more ... -
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 ... -
Development of a new hesitant fuzzy ranking model for NTMP ranking problem
Atalay, Kumru Didem; Ic, Yusuf Tansel; Kececi, Baris (2021)Nontraditional manufacturing processes (NTMPs) bring the processing capabilities such as machining high strength and hard materials with desired accuracies and surface finish to the manufacturing companies. Therefore, there ... -
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 ... -
Development of an intuitionistic fuzzy ranking model for nontraditional machining processes
Yurdakul, Mustafa; Ic, Yusuf Tansel; Atalay, Kumru Didem (2020)Nontraditional machining processes (NTMPs) are capable of processing very small parts, producing intricate geometries, operating on very narrow machining areas and machining high strength materials. These capabilities lead ... -
Estimating the COVID-19 Death Counts Using a Hesitant Fuzzy Linear Regression Depend on Race, Age and Location
Dengiz, Asiye Ozge; Atalay, Kumru Didem (2022)The COVID-19 pandemic that has struck the world has caused social and economic problems in people's lives. Many countries are trying to reduce the impact of the pandemic by taking precautions to prevent the spread of the ... -
Evaluation of Effect of Different Membership Functions on Risk Assessment
Atalay, Kumru Didem; Can, Guelin Feryal; Eraslan, Ergun (2018)This study aims to define the relationship between risk degrees and risk indexes on different functional structures with the assumption that risk degrees may not always present a linear relationship with the risk indexes. ... -
A goal programming approach for multi objective, multi-trips and time window routing problem in home health care service
Dengiz, Asiye Ozge; Atalay, Kumru Didem; Altiparmak, Fulya (2021)The structure of services in the health sector is changed by the epidemic diseases affecting the world, the population growth and developing technologies. Due to the advantages it provides, home health care (HHC) services ... -
Goodness-of-fit and Randomness Tests for the Sun's Emissions True Random Number Generator
Tanyer, Suleyman Gokhun; Atalay, Kumru Didem; Inam, Sitki Cagdas (2014)Random number generators ( RNGs) are one of the key tools necessary for statistical analysis and optimization methods such as Monte Carlo, particle swarm optimization ( PSO) and the genetic algorithm. Various pseudo and ... -
Multiple Service Home Health Care Routing and Scheduling Problem: A Mathematical Model
Dengiz, Asiye Ozge; Atalay, Kumru Didem; Altiparmak, Fulya (2020)The home health care routing and scheduling problem (HHCRSP) is an extension of the vehicle routing problem (VRP) that are scheduled and routed to perform a wide range of health care services. Nurses, doctors and/or ... -
A New Hybrid Intuitionistic Approach for New Product Selection
Atalay, Kumru Didem; Can, Gulin Feryal (2018)This paper proposes a new hybrid approach for multi-criteria decision-making problems combining intuitionistic fuzzy analytic hierarchy process and intuitionistic fuzzy multi-objective optimization by ratio analysis. ... -
A new hybrid method to determine the hazardous risk factors
Dinler, Esra; Atalay, Kumru Didem; Guler, Ezgi (2022)In risk analysis, the quantification of risk, the modeling of identified risk, and how to make decisions are all topics considered. Risk analysis activity that companies must comply with and perform at a minimum level to ... -
A New Methodology for Solving Multiobjective Chance-Constrained Problems: An Application on IoT Systems
Atalay, Kumru Didem; Pekin, Tacettin Sercan; Apaydin, Aysen (2021)This study presents a newly developed methodology to transform the chance-constrained problem into a deterministic problem and then solving this multiobjective deterministic problem with the proposed method. Chance-constrained ... -
A New Stochastic MCDM Approach Based on COPRAS
Ayrim, Yelda; Atalay, Kumru Didem; Can, Gulin Feryal (2018)This study proposes a novel integrated Complex Proportional Assessment (COPRAS) approach by using stochastic decision process named as Stochastic COPRAS (COPRAS-S) to increase the evaluation performance of COPRAS. In ... -
Performance enhancement of production systems using fuzzy-based availability analysis and simulation method
Sahin, Merve Uzuner; Dengiz, Berna; Atalay, Kumru Didem (2020)Due to the complexity of today's engineering systems, accurate system performance analysis is important to obtain a more productive system design. This study introduces a new approach to obtain a new system design considering ... -
Randomness Tests For The Method Of Unıform Sampling Quasi-Random Number Generator (MUS-QRNG)
Atalay, Kumru Didem; Tanyer, Suleyman Gokhun (2014)Random number generation is still an important research field in many scientific applications today. Cryptography, Monte Carlo simulations and commertial applications all rely on reference random data. Randomness tests and ... -
Risk Analysis and Process Improvement for Medical Devices with Integrated Method DEA and FMEA
Yamandir, Merve Nil; Dinler, Esra; Atalay, Kumru Didem (2022)Risk analysis is the identification of factors, conditions, activities, systems, components that are important concerning risk. Evaluating the systems in terms of risk plays a critical role in the production of products ...