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Article Citation - WoS: 20Citation - Scopus: 20Properties of the Pc(4312) pentaquark and its bottom partner(Iop Publishing Ltd, 2021) Azizi, K.; Sarac, Y.; Sundu, H.We present an analysis of the newly observed pentaquark P-c(4312)(+) to shed light on its quantum numbers. To do that, the QCD sum rules approach is used. The measured mass of this particle is close to the Sigma D-++(c)- threshold and has a small width, which supports the possibility of its being a molecular state. We consider an interpolating current in a molecular form and analyze both the positive and negative parity states with spin-. We also consider the bottom counterpart of the state with similar molecular form. Our mass result for the charm pentaquark state supports that the quantum numbers of the observed state are consistent with J(P) = 1/2(-).Article Citation - WoS: 4Citation - Scopus: 4An Integrated Economy-Demography Model Reframed in a System Dynamics Setting(Wiley, 2019) Dural-Selcuk, Gozdem; Tunc, Huseyin; Tarim, S. ArmaganIn recent history, there has been an increasing concern about population aging and the associated increased economic burden in terms of high health-care expenses and pension payments. The need for decision support tools that can explore population dynamics has become a prominent issue. This study presents a comprehensive framework where one can scrutinize the key demographic drives of fertility (Total Fertility Rate/Age-Specific Fertility Rate) over macroeconomic indicators (technology, education, human capital) under exogenous mortality. The integrated model in this article is developed based on a reformulation of the unified growth theory. In the reformulated model, namely the "economy-demography model," the population age/sex structure is preserved, age-specific mortality is included, and fertility is measured in conventional demographic terms. The model is then presented in system dynamics framework, and its practical use is showcased with data obtained from the Turkish Statistical Institute. Copyright (c) 2020 System Dynamics SocietyConference Object Citation - Scopus: 1Ontology Based Virtual Enterprise System Domain Modeling(DEStech Publications Inc., 2014) Lotfi Sadigh,B.; Ünver,H.Ö.; Dogdu,E.; Kiliç,S.E.A virtual enterprise (VE) is a product oriented temporary consortium which forms a collaboration platform to fulfil a specific common purpose (typically to create a product) by benefiting from various capabilities of multiple VE partner enterprises. VE lifecycle consists of 3 distinct phases including VE Formation, Operation and Dissolution. VE partner enterprises are selected from virtual breeding environment (VBE) based on specific criteria considering the new VE project specifications. In order to select the most appropriate partners for the forthcoming VE project, it is required to have comprehensive information regarding the VBE members, their current conditions, capabilities, capacities and their past performances. This database continuously changes and it is dynamic. Ontologies and the corresponding knowledge bases provide the best tools for modelling such complex domain knowledge and highly dynamic data requirements. Ontologies not only help model and capture complex domain knowledge, but also improve the sharing and reusability of data and knowledge providing a suitable environment for software agents and human communications. The VE system must be able to demonstrate what types of resources exist, where they are located, and how much resource capacity is available to be used by the consortium. In this paper a pilot Virtual Enterprise system model developed for OSTIM organized industrial park in Ankara will be presented in detail. The objective of this system model is to enable SMEs in the region to collaborate effectively in order to produce eco-friendly high value added products. © Copyright 2014 by DEStech Publications, Inc. All rights reserved.Article Citation - Scopus: 1Faır Prensipleriyle Uyumlu Gözlemlenebilen ve İzlenebilen Sosyal Medya Tabanlı Dijital Habercilik Veri Modeli(Gazi Univ, Fac Engineering Architecture, 2024) Takan, Savaş; Takan, Duygu ErgünGünümüzde artan veri dolaşımı nedeniyle dijital habercilikte bilgi kirliliği ve dezenformasyon daha önce hiç olmadığı kadar yaygın hale gelmiştir. Eski tarihlerde bilgiye erişim bir hak olarak vurgulanırken, günümüzde bilgi kirliliğinden korunma hakkı ortaya çıkmıştır. Bunun en temel nedeni, dijital ortamda dolaşıma giren çok sayıda haberin takibinin yapılamaması ve dijital haber paylaşımının gerektirdiği sorumlulukları düzenleyecek bir yapının bulunmamasıdır. Bu gibi problemlerin çözümüne yönelik çalışmamızda dijital habercilik veri modeli geliştirilmiştir. Dijital habercilik için önerdiğimiz veri modeli, FAIR prensiplerini sağlamasının yanı sıra, haberlerin birbiriyle mantıksal ilişkiye sahip olmasını ve haberlerin tüm süreçleriyle takip edilebilir olmasını mümkün kılarak, güvenilir bir sosyal medya ağı oluşturur. Herhangi bir veri modelinin gözlemlenebilen ve izlenebilen bir sosyal medya ortamını destekleyebilmesi için, büyük verileri barındıran çizge yapılarıyla çalışabilmesi gerekmektedir. Mevcut blokzinciri teknolojileri, gözlemleyebilme ve izleyebilme özelliklerini sağlasa da bu teknolojiler sosyal medya ağının gerektirdiği çizge veri yapısını desteklememektedir. Bu problemleri çözmek için, önerdiğimiz yapıda model ile veri birbirinden ayrılmış ve indeksleme mekanizmalarının desteklenmesi sağlanmıştır. Önerilen veri modeli, blokzinciri teknolojisinin veri modeli ile karşılaştırılmış ve sonuçta, dijital habercilik için geliştirdiğimiz modelin zaman ve alan karmaşıklığının yanı sıra, sürdürülebilirlik ve bakım maliyetleri açısından blokzinciri teknolojisinin veri modeline göre daha uygun olduğu tespit edilmiştir.Article Citation - WoS: 7Citation - Scopus: 7Finite Element Analysis of Frames With Reinforced Concrete Encased Steel Composite Columns(Mdpi, 2022) Tunc, Gokhan; Othman, Mohammed Moatasem; Mertol, Halit CenanStructural frame systems that consists of concrete-encased-steel-embedded composite columns and reinforced concrete beams are typically used in mid-rise to tall buildings. In order to understand their overall structural behavior, a total of 12 frame models with high and low ductility features were constructed and analyzed using LS-DYNA software. Two of these models were validated using the results of previously tested frames. The remaining 10 models were studied to predict the behavior of frames with varying concrete strengths, reinforcement configurations, and structural steel sections under vertical and lateral loads. The results were investigated in terms of cracks and failure patterns, load-deflection relationships, energy dissipation, and stiffness degradation. The analytical results indicated that the high ductile frame models showed slightly better lateral load carrying performances compared to low ductility frame models. Moreover, the analytical studies demonstrated that the existence of structural steel in a column, regardless of its cross-sectional shape, was the most important parameter in improving the lateral load carrying capacity of a frame.Article Citation - WoS: 83Citation - Scopus: 116Effect of Social Media Sharing on Destination Brand Awareness and Destination Quality(Sage Publications Ltd, 2020) Dedeoglu, Bekir Bora; van Niekerk, Mathilda; Kucukergin, Kemal Gurkan; De Martino, Marcella; Okumus, FevziThis study examines the effect of social media sharing on tourism destination brand awareness and destination natural and service quality and also examines the moderating roles of country of origin (COI; macro and micro) image on destination natural and service quality. Data were collected from 568 domestic and international tourists who have visited Alanya, Turkey. Relationships in the study were examined through structural equation modeling. As one of the components of social media sharing, participant sharing positively affects destination brand awareness, whereas any significant effect of nonparticipant sharing on destination brand awareness was not found. Destination brand awareness positively influences tourist perceptions of both destination service quality and destination natural quality. COI image moderates most of the relationships.Article Citation - WoS: 57Citation - Scopus: 71Fixed Point Theorems for Α-Geraghty Contraction Type Maps in Metric Spaces(Springer int Publ Ag, 2013) Cho, Seong-Hoon; Bae, Jong-Sook; Karapinar, ErdalIn this paper, we introduce a notion of alpha-Geraghty contraction type maps in the setting of a metric space. We also establish some fixed point theorems for such maps and give an example to illustrate our results. Finally, we discuss the application of our main results in the research fields of ordinary differential equations.Article Citation - WoS: 4Citation - Scopus: 5Experimental Investigation of Communication Performance of Drones Used for Autonomous Car Track Tests(Mdpi, 2021) Yildiz, Melih; Bilgic, Burcu; Kale, Utku; Rohacs, DanielAutonomous Vehicles (AVs) represent an emerging and disruptive technology that provides a great opportunity for future transport not only to have a positive social and environmental impact but also traffic safety. AV use in daily life has been extensively studied in the literature in various dimensions, however; it is time for AVs to go further which is another technological aspect of communication. Vehicle-to-Vehicle (V2V) technology is an emerging issue that is expected to be a mutual part of AVs and transportation safety in the near future. V2V is widely discussed by its deployment possibilities not only by means of communication, even to be used as an energy transfer medium. ZalaZONE Proving Ground is a 265-hectare high-tech test track for conventional, electric as well as connected, assisted, and automated vehicles. This paper investigates the use of drones for tracking the cars on the test track. The drones are planned to work as an uplink for the data collected by the onboard sensors of the car. The car is expected to communicate with the drone which is flying in coordination. For the communication 868 MHz is selected to be used between the car and the drone. The test is performed to simulate different flight altitudes of drones. The signal strength of the communication is analyzed, and a model is developed which can be used for the future planning of the test track applications.Conference Object Citation - WoS: 6Curriculum Change Parameters Determined by Multi Criteria Decision Making (mcdm)(Elsevier Science Bv, 2014) Erkan, Turan Erman; Rouyendegh, Babak DaneshvarCurriculum, research, instruction, learning and assessment are the pulse of the university. The main purpose of this study is to fill a substantial knowledge gap regarding reaching a uniform group decision in Industrial engineering curriculum design and planning. A comprehensive quality based course criterion model extracted from existing literature and expert opinions was developed. Multi Criteria Decision Making (MCDA) was used to identify the relative importance of course criteria for the purpose of tailoring an optimal four Industrial engineering curriculum for Bachelor's Degree students in Turkey.. The hierarchical model and analysis utilized in the present study will be useful for resolving several important multi-criteria decision-making issues in planning and evaluating Industrial Engineering programs. (C) 2013 The Authors. Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Academic World Education and Research Center.Conference Object Citation - WoS: 9Citation - Scopus: 13Linking Employers' Expectations With Teaching Methods: Quality Function Deployment Approach(Elsevier Science Bv, 2011) Ictenbas, Burcu Devrim; Eryilmaz, HandeMeeting the expectations of employers' and related sector is important in gaining a competitive advantage and is thus an opportunity as well as a big challenge faced by universities. Quality Function Deployment (QFD) is a methodology to translate customer requirements into the final product or service characteristics. The purpose of the study is to evaluate different teaching methods in perspective of employers' expectations using the QFD approach. This study takes a sample Industrial Engineering course as an example and uses QFD methodology in assessing the effectiveness of teaching methods in the perspective of employers' expectations. The findings will help the instructors to improve their courses to meet the employers' expectations.
