Browsing by Author "Çelebi,N."

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Demographic Features of Turkish Literature Audiences and Applied Analysis of the Factors Affecting Their Reading Preferences
(American-Eurasian Network for Scientific Information, 2014) Poyraz,Y.; Korkmaz,M.; Yücel,A.S.; Aras,G.; Çelebi,N.; Industrial Engineering; Department of English Language and Literature; 06. School Of Engineering; Department of English Language and Literature; 17. Graduate School of Social Sciences; 02. School of Arts and Sciences; 01. Atılım University
The purpose of this study is to determine factors affecting reading preferences in parallel with the demographic features of Turkish literature audiences. The study lasted approximately for 7 months. (N=650) individuals attended the study in total. The universe of the study is Turkey while the sample of the study is composed of 8 different provinces. These provinces are Istanbul, Ankara, Izmir, Bursa, Kocaeli, Sakarya, Trabzon and Gaziantep. A questionnaire form whose reliability and validity had been ensured before and which was composed of 5 point Likert scale was used in the study. The questionnaire form was reformed in accordance with the topic of the study, it was subjected to validity and reliability test and it was carried into main practice through taking views of experts. Data acquired from the results of main practice was analyzed by using SPSS 18.0 packet program and the value of 0.924 was acquired as Cronbach’s Alpha co-efficient. This value indicates that the measuring tool used in this study is quite reliable. The questionnaire is composed of two sections. In the first section, there are questions with regard to determine demographic features of the participants while in the second section, there are scaled questions composed of 120 items. 0.05 of significance level was taken into account among variables in terms of relations and differences. Methods such as different statistics anova, factor and hypothesis tests were applied in the analysis. Moreover, 4 different literary works were mentioned in the study so as to determine attitudes and behaviors of the participants towards literary works. Opinions of the participants were demanded about novels such as Intibah (Rebirth), Araba Sevdasi (Ambition for Car), Mai ve Siyah (Blue and Black) and Çalikusu (The Wren). At the end of the study, it was found out that the participants followed academic publications more frequently, the use of computer and internet had an effect on reading e-book and up-to-date books were read more than those books written in a foreign or ancient language (Ottoman Turkish). Furthermore, it was determined that education and age variables of the participants had an effect on reading habits while gender, age and education variables had an effect in some reading factors. © 2014 AENSI Publisher All rights reserved.
Citation - Scopus: 5
Developing a Multi-Stage Production Planning and Scheduling Model for a Small-Size Food and Beverage Company
(International Information and Engineering Technology Association, 2021) Tirkeş,G.; Çelebi,N.; Güray,C.; Industrial Engineering; Department of Metallurgical and Materials Engineering; 15. Graduate School of Natural and Applied Sciences; 06. School Of Engineering; 01. Atılım University
A great deal of research has been undertaken in recent years related to facility capacity expansion and production planning problems under deterministic and stochastic constraints in the literature. However, only a small portion of this work directly addresses the issues faced by the food and beverage industry, especially in small-sized enterprises. In this study, a Mixed-Integer Linear Programming model (MILP) is developed for production planning and scheduling decisions for a small-size company producing syrup and jam products. The main constraint is that the multiple syrup and jam production lines in the model share the same limited-capacity module designed for inventory planning. To this end, the present model offers an efficient solution for executing a multi-product, multi-period production line by finding the most satisfactory strategy to match the right product with the useable capacity leading to profit maximization. The present approach is capable of coping with varying demands by offering a detailed costing procedure and implementing an effective inventory model. © 2021 Lavoisier. All rights reserved.
Citation - Scopus: 3
A simulation model for mine production sequences
(2006) Aydiner,K.; Çelebi,N.; Paşamehmetoǧlu,A.G.; Industrial Engineering; 06. School Of Engineering; 01. Atılım University
Mine design process strictly dependent on the economical variables of the orebody and the rock mass properties having effect on the physical parameters of the intended mining system. In addition, the dynamic aspects of the possible system must be taken into account. Difficulty in design arises mainly from the difficulty in obtaining enough and reliable data. Collecting enough and quality data requires to costly and timely procedures. Therefore, the mine design engineers have to consider alternative cases in their designs or they have to design with limited data. This study presents a simulation model that can be used to develop the production subsystem model of an underground mining system. A mechanized production system model and a decision analysis tool using a discrete event simulation process were developed. The tool allows an engineer with experimenting his/her design to generate a model that can meet the targeted production rate.