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Conference Object COMPARISON OF COMPUTER-BASED PROPAGATION MODELS WITH EXPERIMENTAL DATA COLLECTED IN AN URBAN AREA AT 1800 MHz(Ieee, 2015) Acar, Tarik; Caliskan, Fatma; Aydin, ElifNowadays a lot of models are set for the efficient and economic usage of frequency band since the band is a limited source. Therefore, the propagation models created for this purpose were studied in the literature. These models are Free Space Path Loss (Fspl) + Reflection plus Multiple Diffraction (RMD), COST-Hata and COST-WI models. In order to compare the success of the models, electric field strength measurements were taken in a chosen district (Mustafa Kemal Mahallesi Ankara, Turkey) where an irregular structure style can be observed. First set of measurements were recorded at random coordinates and second set of measurements were collected by the following coordinates tracking on a single line. As a conclusion, measured values were compared with the results which were taken from the mentioned models with graphical presentations. The most appropriate model was tried to be found and as another aim of the study, a correction factor was generated as a modification for COST-Hata propagation model.Article Citation - WoS: 56Best Proximity Point on Different Type Contractions(Natural Sciences Publishing Corp-nsp, 2011) Karapinar, Erdal; Erhan, Inci M.In this manuscript, some proximity points are obtained by using different types cyclic contractions. Also, generalized cyclic Meir Keeler contraction is introduced and a new fixed point theorem for this cyclic mapping is stated.Conference Object A New E-Commerce Model Suggestion of Agricultural Products(Springer international Publishing Ag, 2024) Eryilmaz, Meltem; Briman, Mohammed Khalid Hilmi; Yakut, GokceThis study aims to create an e-commerce application that enables farmers to sell their products directly to their customers without resorting to intermediaries by a smart cargo box. It presents a method by which the agricultural industry can gain momentum in e-commerce. The main contributions of the study are an e-commerce application that enables farmers to sell their products directly to the customer without the need for an intermediary and the design and implementation of a smart cargo box that is tailored to carry agricultural items throughout the delivery process that locks and unlocks only via QR code generated by the application after order. Django FrameworkNext.js, React.js, and Redux are used for the system development. The database is created with PostgreSQL using migrations, and AmazonWeb Services is used for this database. The "ESP32 Cam" is used to read the QR Code.Conference Object Infrared Absorption Spectroscopy of Monolayers with Thin Film Interference Coatings(Ieee, 2017) Ayas, Sencer; Bakan, Gokhan; Ozgur, Erol; Celebi, Kemal; dana, AykutluWe report high performance Infrared spectroscopy platforms based on interference coatings on metal using CaF2 dielectric films and Ge2Sb2Te5 (GST) phase-change films. IR vibrational bands of proteins and organic monolayers are also detected.Article Exploring the Link Between English Language Instructors’ Technological Pedagogical Content Knowledge and Satisfaction with Teaching Online(Dr. Khairi Obaid Tayyeh Al-Zubaid, 2024) Tayşı, Eda; Alagözlü, NurayThe aim of this study was to explore the relationship between English language instructors’ perceived levels of Technological Pedagogical Content Knowledge (TPACK) and their satisfaction with teaching online. 205 English instructors working at universities in Turkey participated in the study. A mixed-method approach was employed for data collection, incorporating quantitative and qualitative methods. Quantitative data were obtained through the TPACK-EFL and the Online Faculty Satisfaction (OFSS) scale, while qualitative data were gathered via in-depth interviews with the instructors. The findings revealed a significant relationship between instructors' TPACK and their satisfaction with teaching online. This research carries several important implications for TPACK in language teaching and its implementation in both online and classroom settings. © 2025 Elsevier B.V., All rights reserved.Conference Object Pilot remote experiment in the ERRL(Ieee, 2007) Oezen, Mustafa; Aydin, Elif Uray; Kara, AliA remote laboratory platform enables the learners to access physical instruments at distant location and to perform experiments remotely via the Internet. This paper focuses on a pilot remote laboratory experiment on measurement of scattering parameters (s parameters) by using vector network analyzer (VNA) in the ERRL (European Remote Radio Laboratory) platform. The results of the pilot experiment are presented, and discussed shortly.Conference Object Citation - WoS: 2Citation - Scopus: 2Radar Cross Section Studies of Low Signature UAVs in X-Band: Simulation, Measurement and Performance Evaluation(IEEE, 2024) Unalir, Dizdar; Gokdogan, Bengisu Yalcinkaya; Aydin, ElifIn this study, the effectiveness of a radar cross section (RCS) reduction method based on a proposed shaping technique for four-legged unmanned aerial vehicles (UAV) has been proven with simulation tools and experimental measurements in X-Band. Simulative RCS values were obtained with CST and HFSS electromagnetic calculation tools, and the advantages of these tools compared to each other were examined. Experimental measurements were carried out in a laboratory environment with a vector network analyzer (VNA) and confirmed with simulation results. The effects of frequency, polarization and aspect angle factors on RCS were examined. It has been shown that with the proposed measurement method, low-cost and easily applicable RCS analysis can be performed in X-Band, one of the frequency bands frequently used in the defense industry. With the proposed shaping method, RCS reduction in the range of 5-10 dBsm was achieved.Article Otherness and Displacement in Wide Sargasso Sea by Jean Rhys(Literary Voice, 2023) Aras, Goksen; Takva, SerdarEnglish hegemonic colonial rule of the other parts of the world was based on unequal power relations and the domination of people from different cultures and ancestral backgrounds. Like the other colonized territories, the Caribbean was one of the countries whose social, political and cultural structure was dominated by England. During its rule in the Caribbean, Britain enslaved black people and forced them to work in the sugar cane plantations thus, created hostility between the Creoles and the black. More importantly, the colonizer othered the indigenous dwellers and the colonized people felt secure neither in their homelands nor in the colonizer's country which led to displacement. After the proclamation of independence, postcolonial writers from the former colonies tackle post-independence problems inherited by colonization in their work. Jean Rhys also handles controversial postcolonial concepts in her work. Her novel titled Wide Sargasso Sea is a notable narrative of the turbulent Caribbean life after the Emancipation. This paper in this sense explores Wide Sargasso Sea in terms of its representation of otherness and displacement in the context of postcolonial studies.Article Creative Pattern Trials for Above the Keyboard Wear With Trompe L'oeil Illusion(Anadolu Univ, 2022) Aydeniz, Sena Surmeli; Cegindir, Nese YasarThe design scenario of this study is based on seeking answers to the question "How can we produce different, extraordinary and original shirts for working women with the Trompe l'oeil (illusion) technique?". The sample of the study, in which the user-oriented design research method was used, is women working above the keyboard. Within the scope of the study, three women's shirts were produced with creative pattern applications. The classical techniques known in garment production have been reconstructed with the Trompe l'oeil technique. The findings were discussed in two dimensions as the process carried out for these three shirts and the prototype evaluation. Osborn's checklist was used to create the design value of the shirts. For the evaluations of the marketability of the products, measurement was made in the form of voting over Google Forms. As a result of the voting, the first prototype was found to be more suitable for the target audience. Based on the individual comments received, it has been observed that originality varies when the position and needs of the target audience come into play. The importance of the user profile in creative product design has been understood.Conference Object Effects of BPR on ERP Implementation Success and Supply Chain Performance(Acad Conferences Ltd, 2012) Erkan, Erman; Bac, Ugur; Rouyendegh, Babak DaneshvarRecently, studies about the Enterprise Resource Planning (ERP) have been increased and this research area has attracted more attention. Especially, in the global competition environment, enterprises have to focus on their Information Systems (IS) performance to have a competitive advantage; implementing an ERP system and improving the effectiveness of the system is the only way. To do so; factors affecting the implementation success of ERP systems have to be inspected in pursuant of some performance measurements and metrics. Since unsuccessful ERP implementations result in high costs; use of these factors and making the necessary preparations will increase the chance of a successful ERP implementation. According to literature Business Process Reengineering (BPR) has a vital role on the ERP success. In this study, a research has been made on the Turkish enterprises to determine the criteria affecting their success on the implementation of ERP systems by the utilization of a questionnaire. Questionnaire results have been analyzed with statistical methods to summarize the current situation of IS structure, Information Management Systems integration level, ERP success rate and effects of BPR on this success rate in Turkish enterprises. Results of this study can be used to define the relation between the ERP and BPR. Understanding this relation is vital for the planned or ongoing ERP implementations. Factors and criteria found in this study which have effects on the ERP systems success should be considered during the implementation planning phase of these systems for efficiently managing the budget of projects. Importance of BPR which was emphasized in this study should be considered by the management of enterprises for evaluating their IS to determine if they are ready for the implementation phase. If they are not, findings will serve as a guideline for improving the chance of successful implementation and this will affect overall performance of the company. Results of this study can also be used in the future studies to compare international differences of IS structures and ERP implementation processes.
