Yazar "Erginel, Nihal" için listeleme
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Adsorption of Disperse Orange 30 dye onto activated carbon derived from Holm Oak (Quercus Ilex) acorns: A 3(k) factorial design and analysis
Un, Umran Tezcan; Ateş, Funda; Erginel, Nihal; Özcan, Öznur; Oduncu, Emre (Academic Press LTD- Elsevier Science LTD, 2015)In this study, samples of activated carbon were prepared from Holm Oak acorns by chemical activation with H3PO4, ZnCl2 and KOH as activating agents. The samples were characterized by SEM, BET, FTIR and elemental analysis, ... -
Analitik serim süreci yöntemi ile Türkiye için en uygun yenilenebilir enerji kaynağı alternatifinin analizi
Güller Yılmaz, Ayşe (Anadolu Üniversitesi, 2016)Enerji, günümüzde yaşamın temel unsurlarından biri haline gelmiştir. Ona olan ihtiyacımız, beraberinde tükenme korkusunu da getirmiştir. Teknoloji ve sanayileşmenin giderek artan hacmi karşısında, var olan doğal kaynakların ... -
Are Tqm Principles Implemented by Large Companies and Smes Similar in Turkiye?
Erginel, Nihal (Anadolu Üniversitesi, 2010)ISO 9001: 2000 Quality Management Systems (QMS): Requirement standards are based on Total Quality Management (TQM) approach. Moreover large companies can easily adopt to ISO 9001: 2000 certification due to their quality ... -
Construction of a fuzzy QFD failure matrix using a fuzzy multiple-objective decision model
Erginel, Nihal (Taylor & Francis LTD, 2010)Global competition has forced companies to consider increasing quality and decreasing all costs, including quality costs. When constructing the quality plan for both the incoming raw materials and the manufacturing process, ... -
Continuous electrocoagulation of cheese whey wastewater: An application of Response Surface Methodology
Un, Umran Tezcan; Kandemir, Ayşe; Erginel, Nihal; Ocal, S. Eren (Academic Press LTD- Elsevier Science LTD, 2014)In this study, treatment of cheese whey wastewater was performed using a uniquely-designed continuous electrocoagulation reactor, not previously encountered in the literature. An iron horizontal rotating screw type anode ... -
Çok periyotlu ve ertelenebilir talepli açık uçlu araç rotalama problemi
Tuna, Gamze (Anadolu Üniversitesi, 2017)Klasik araç rotalama probleminin bir çeşidi olan Açık Uçlu Araç Rotalama Probleminde (AUARP), araçlar müşterilere hizmet verdikten sonra depoya geri dönmek zorunda değillerdir. AUARP'de, araç kapasite kısıtları altında tüm ... -
Design of Fuzzy (u)over-tilde Control Charts
Şentürk, Sevil; Erginel, Nihal; Kaya, İhsan; Kahraman, Cengiz (Old City Publishing Inc, 2011)When expressing any data in linguistic terms related to a quality characteristic, traditional statistical techniques are insufficient to capture the vagueness in the data. Linguistic data can be transformed into numerical ... -
Design of Fuzzy u Control Charts
When expressing any data in linguistic terms related to a quality characteristic, traditional statistical techniques are insufficient to capture the vagueness in the data. Linguistic data can be transformed into numerical ... -
Designing the airport service with fuzzy QFD based on SERVQUAL integrated with a fuzzy multi-objective decision model
Kayapinar, Sema; Erginel, Nihal (Routledge Journals, Taylor & Francis Ltd, 2019)Airport service quality is a crucial issue in the transportation industry. Although many studies focus on service quality and measurement of the airports, only a small number of studies that consider linguistic expression ... -
Determining the Criteria and Evaluating Six Sigma Projects via Fuzzy ANP method in Group Decision
Altıntaş, Merve; Erginel, Nihal; Küçük, Gamze (Elsevier Science BV, 2016)Six Sigma is a well-structured methodology based to detect and reduce the variation on design and production process. Six sigma helps to achieve the company's goals by driving the six sigma projects throughout the company. ... -
Determining Weights in Multi-Objective Linear Programming under Fuzziness
Yalçın, Gülçin Dinç; Erginel, Nihal (Int Assoc Engineers-Iaeng, 2011)This study presents a method to determine weights of objectives in multi objective linear programming without decision maker/s preference. The method is developed by modifying Belenson and Kapur's approach under fuzziness. ... -
Development of fuzzy ((X) over bar) over tilde - (R) over tilde and ((X) over bar) over tilde - (S) over tilde control charts using alpha-cuts
Şentürk, Sevil; Erginel, Nihal (Elsevier Science Inc, 2009)Statistical process control (SPC) is an approach that uses statistical techniques to monitor the process. Shewhart introduced the control charts that are one of the most important techniques of quality control to detect ... -
Estimating Fuzzy Life Time with a Fuzzy Reliability Function in the Appliance Sector
Erginel, Nihal; Saraçoğlu, Hande; Yıldız, Gülay; Şentürk, Sevil (Springer International Publishing Ag, 2018)Reliability is defined as the length of time a component works without failing. The reliability function shows an estimate for the probable amount of time a component should work without experiencing failure. Fuzzy set ... -
Evaluating the Packing Process in Food Industry Using Fuzzy X ~ and S ~ Control Charts
Erginel, Nihal; Şentürk, Sevil; Kahraman, Cengiz; Kaya, İhsan (Atlantis Press, 2011)The fuzzy set theory addresses the development of concepts and techniques for dealing with uncertainty or impression conditions. If the collected data from a process include vagueness due to human subjectively or measurement ... -
Evaluating the packing process in food industry using fuzzy and [stilde] control charts
The fuzzy set theory addresses the development of concepts and techniques for dealing with uncertainty or impression conditions. If the collected data from a process include vagueness due to human subjectively or measurement ... -
Evaluation methods for completed Six Sigma projects through an interval type-2 fuzzy ANP
Erginel, Nihal; Uluskan, Meryem; Kücük, Gamze; Altıntaş, Merve (Ios Press, 2018)We propose project evaluation criteria by considering not only the Six Sigma approach, but also European Foundation for Quality Management (EFQM) model features, and introduce an evaluation model for completed Six Sigma ... -
Fuzzy (p)over-tilde control chart
Erginel, Nihal (World Scientific Publ Co Pte LTD, 2008)Control charts are very useful tool for monitoring and analyzing the processes. When the quality characteristics cannot be represented in numerical form, like softness, appearance, chapped, damaged, etc., control charts ... -
Fuzzy Dea Approach to Solve the Location Selection of Wind Energy
Erginel, Nihal; Yalçınkaya, Merve; Şentürk, Sevil (World Scientific Publ Co Pte LTD, 2012)Wind energy is an important energy source among the renewable energies, in nowadays. Turkey has many wind energy locations due to the appropriate weather conditions. The problem of location selection of wind energy depends ... -
Fuzzy EWMA and Fuzzy CUSUM Control Charts
Erginel, Nihal; Şentürk, Sevil (Springer Int Publishing Ag, 2016)Exponentially Weighted Moving- Averages (EWMA) and Cumulative-Sum (CUSUM) control charts have the ability of detecting small shifts in the process mean. Classical EWMA and CUSUM charts are not capable to capture the ... -
Fuzzy exponentially weighted moving average control chart for univariate data with a real case application
Şentürk, Sevil; Erginel, Nihal; Kaya, İhsan; Kahraman, Cengiz (Elsevier Science BV, 2014)Statistical process control (SPC) is an approach to evaluate processes whether they are in statistical control or not. For this aim, control charts are generally used. Since sample data may include uncertainties coming ...
