Bioengineering / Biyomühendislik

Permanent URI for this collectionhttps://hdl.handle.net/11147/4529

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Author: search.filters.author.Tarım, Ergün AlperayPublication Index: search.filters.publicationIndex.TR-Dizin

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  • Article
    The Ordering of Smokers’ Toothpaste Choice Criteria With Fuzzy Model
    (Atatürk Üniversitesi, 2019) Tarım, Ergün Alperay; Kuruoğlu Kandemir, Emel; Mevsim, Vildan
    Aim: There are some measures that smokers can cease or prevent damage caused by smoking. They may also choose some product features that may be more helpful to them like toothpaste selection etc. The preferences of smokers vary because of the variety of toothpaste in the market and a high number of products. The aim of this study is to determine the importance of toothpaste selection criteria in order to determine the decision and toothpaste selection. Material and method: Fuzzy DEMATEL model is used effectively in decision making problems. This model, which can rank the decision criteria in order of importance even for a single individual, is a more effective and important model in ordering the decision criteria of a large number of individuals. In this study, fuzzy DEMATEL model was used to determine the importance of toothpaste selection criteria. In this study, 7 toothpaste selection criteria were determined by data obtained by taking user and expert opinions. After the determination of criteria, the information form was applied to the model to show the criterion importance preferences of smokers. Results: According to the preferences of smokers, the selection criteria of toothpaste were placed in the order with the fuzzy DEMATEL model. The most important criteria is toothpaste package appearance, while the least of the 7 criteria is determined as the criteria that Sensation of Person. Conclusion: As a result, the toothpaste properties that the smokers would prefer, ie the toothpaste selection criteria are listed in importance. In other words, it is given the ranking of preference criteria for smokers when choosing toothpaste.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 10
    Performance Evaluation of Webrtc-Based Online Consultation Platform
    (Türkiye Klinikleri Journal of Medical Sciences, 2019) Tarım, Ergün Alperay; Tekin, Hüseyin Cumhur
    Information technologies give patients the opportunity to communicate with medical professionals remotely. Telemedicine uses these technologies to provide advanced healthcare and medical services. We present a medical online consultation application based on Web Real-Time Communications (WebRTC) technology enabling chat, audio, and video calls. Communication architecture and protocols of the application are explained in detail. Additionally, the user interface of the application is shown via performed calls. The application is tested and evaluated on different network connections (3G, 4G, local, and DSL) and different browsers and mobile operating systems (Android, Chrome, Firefox, Internet Explorer, iOS, Opera, Safari). During calls, communication quality parameters such as round-trip time (RTT) and packet loss, obtained via the WebRTC application programming interface, are analyzed. 3G, 4G, and local connections show low packet losses (<1%). Packet losses are high (>1%) in Android, Chrome, iOS, Opera, and Safari for DSL connection, but RTT values are low (<100 ms) in all different conditions excluding iOS. In the presented application, RTT and packet loss remain lower than 100 ms and 1%, respectively, in various scenarios, indicating good communication quality. RTT and packet loss are related to total time and hang time parameters, which describe the necessary time to establish and to end a call. It is shown that communication quality of the application can simply be measured by analyzing the total time parameter. This enables predictable information for communication quality for WebRTC-based applications without continuously monitoring RTT and packet loss for the first time.