Eastern Mediterranean University Institutional Repository (EMU i-REP)
We are delighted to have you here. EMU i-REP is your gateway to the rich academic and educational resources produced by our university. Supporting the Open Access movement, we are committed to sharing our research and scholarship as widely as possible. Explore full-text academic research results, educational materials, and more. Designed to inspire, inform, and connect our community and beyond. DSpace@EMU is an integrated information system that can support the monitoring and analysis of research and academic performance at Eastern Mediterranean University.
Recent Submissions
Item type:Item, Hybrid Machine Learning-based Intrusion Detection System Framework for Vehicular Ad hoc Networks(Eastern Mediterranean University, 2022) Shams, Erfan Amirzadeh; Rizaner, Ahmet (Supervisor); Ulusoy, Ali Hakan (Co-Supervisor)Autonomous transportation has an intense impact on the way of our day-to-day commute or traveling. The benefit of a sustainable and flexible system combined with safety and comfort is the next step of the transportation evolution. Connectedness is an inseparable part of this evolution, and it is possible through Intelligent Transportation Systems applications. These applications use a network system known as Vehicular Ad hoc Network (VANET). This system comes with its own benefits and drawbacks. In this research, we study one of the most acute issues of VANET which is security. The safety that is provided by VANET can be easily compromised by malicious users, hence the need for an Intrusion Detection System (IDS). An IDS is a computer program that detects the presence of malicious users and acts accordingly. We designed two IDS models that can cooperate in a hybrid manner for detecting and eliminating attackers in VANET. Therefore, we generated relevant network data for training the core of the IDS using the widely utilized Network Simulator 2, 3 (ns-2, ns-3), and Simulation of Urban Mobility (SUMO) tools. We employed the Support Vector Machine classifier to design a lightweight Trust-aware binary IDS (TSIDS) with only three inputs to detect packet dropping and delaying attacks, as well as a multi-class IDS using Convolutional Neural Networks (CNN) with a novel feature extraction method (CAFECNN). The TSIDS uses a modified version of the promiscuous mode that only collects relevant packets for monitoring the neighboring nodes or vehicles. The CAFECNN model takes advantage of the interconnected Roadside Units to collect network flow information and use the said data for detecting both passive and active types of attacks. We evaluated both models using real-time simulations and, in both cases, we observed an immediate improvement in the performance of the network in presence of intruders. Keywords: Intrusion Detection System, Vehicular Ad hoc Network, Support Vector Machine, Convolutional Neural Network.Item type:Item, Vibration Analysis of Piezoelectric Energy Harvesting Advanced Light Weight Rotating Beams(Eastern Mediterranean University, 2022) Salih, Ahmed; Safaei, Babak (Supervisor)Renewable energy is energy that can be found in nature as solar energy and wind energy. A new type of renewable energy is added recently: energy harvesting. This category is only for small systems such as sensors and one of its categories is vibrational energy. Material that gives the ability to convert mechanical energy (i.e. Vibration) to electrical energy and vice-versa is the piezoelectric material. In this thesis, a sandwich structure consisting of a piezoelectric layer and light materials is proposed, this structure can be inserted in different rotational environments such as flex plates tires, and the blade of a wind turbine, the vibration of these environments can be transformed to electrical energy to power sensors or any low power type of equipment. PZT-5H piezoelectric material will be used, the harmonic analysis will be applied to three different light materials to determine the voltage output from the PZT5H which are aluminum and magnesium and, titanium. Noise will be added to the beams to enhance the output power of the harvesters and to make the systems have more than one stable position to allow the stochastic resonance phenomenon to occur. The temperatures on the produced electrical power will be also examined for each beam, the harmonic analysis will be done with the finite element method (FEM) on ABAQUS® software, curve fitting temperature data to get the elasticity at a desired temperature and noise inheritance are done using MATLAB® Software. The results showed that Magnesium substrate produced the highest electrical power by 756.06 µW and Titanium substrate comes next with 501.9 µW and at last Aluminum substrate with a value of 489.92 µW, also the results demonstrated that the temperature reduced the electrical power by overall but the highest substrate material was Aluminum with a value of 427.0 µW and next comes the Magnesium substrate with a value of 401.0 µW and at last Titanium substrate with a value of 395.0 µW. Keywords: Stochastic resonance, Finite element method, Euler-Bernoulli beam, Piezoelectric energy harvesting.Item type:Item, A Values-Based Model for Decision Making in Priority of Conservation of Cultural Heritage: UNDP Projects in Cyprus as a Case Study(Eastern Mediterranean University, 2022) Jahromi, Faraneh Sahraiyan; Türker, Özlem Olgaç (Supervisor)Architectural heritage possesses a high variety of tangible and intangible values which are attached to heritage buildings and sites. Detailed consideration and understanding of these values can help the decision makers to make a healthy conservation decision in heritage management by the inclusion of stakeholders. Although all of the built heritage have a significance, very often, prioritizing them, is a necessary action in conservation, especially in the case of limited financial resources. In the process of decision-making, absence of full understanding of heritage values, might have a negative impact for conservation of cultural heritage. In this respect this study explores different terminologies of cultural heritage values by collecting a comprehensive data set of values from international literature; and categorises them into different typologies so that these categories are used to develop a values-based framework for prioritisation of built heritage. Weighting of heritage values are done by heritage experts through AHP (Analytical Hierarchy Process) method and then the extracted weights are used in the proposed framework by different stakeholders to evaluate values of similar groups of heritage buildings through TOPSIS method. This assessment helps decision makers to prioritise the heritage buildings in conservation management. Content analysis is applied as a qualitative research methodology, on a broad literature on heritage values. The collected definitions of values are reviewed, and the ones with similar and close meaning are considered as a common value. As a quantitative method, the weight of each value typology has been extracted, based on frequency of being mentioned by different authors in different sources. This categorisation created the basis for the calculation of weights of heritage values by the experts. In order to extract the weight of values from experts’ point of view MCDM (Multi-Criteria Decision-Making Model) is applied. At the same time, the rank of each case in comparison to others, is determined by another survey filled by various groups of stakeholders including experts from public and private sectors and users such as tourists and local people. The conservation projects from Famagusta Walled-City in Cyprus, funded by UNDP, have been selected as case studies to verify the framework that has the ability of calibration and can be adapted to different contexts. Keywords: Heritage value, Cultural heritage, Architectural heritage, Heritage conservation, Decision-making.Item type:Item, Utilizing Indirect Contact to Reduce Prejudice Toward LGBTI+'s(Eastern Mediterranean University, 2022) Ray, İbrahim; Raman, Şenel (Supervisor)Lesbian, gay, bisexual, transgender, intersex, and plus (LGBTI+) experience a disproportionate amount of prejudice and discrimination. Indirect contact is one of the most effective ways in reducing prejudice toward different stigmatized groups and improving attitudes, including LGBTI+’s. Parasocial contact is a type of indirect contact which is based on media exposure of viewers to an outgroup member(s). Exposure to outgroup-related parasocial contact has been found to enhance positive attitudes and lower prejudice toward outgroups. The current study aimed to test the effects of a parasocial contact intervention on prejudice reduction toward LGBTI+s using three different conditions: emotion-, human rights-, and economy-based parasocial contact as well as a control group. It was hypothesized that parasocial contact interventions would be effective in reducing prejudice against LGBTI+s compared to the control group in the form of more positive attitudes, greater perspective taking, reduced threat perception, increased support for LGBTI+ rights and lowered social distancing while controlling for prior contact, gender, and social dominance orientation. Additionally, it was hypothesized that there will be differences between the three parasocial contact interventions regarding prejudice toward LGBTI+. A sample of 334 Turkish-speaking young adult university students (234 female and 110 male) at Eastern Mediterranean University completed an online-based survey. Participants were randomly assigned to one of the four conditions. Participants then completed the Social Dominance Orientation, Perspective-Taking, Support LGBTI+ Rights, Symbolic threat, Social Distance, Outgroup attitudes scales and demographic information questionnaire respectively. The findings of the study demonstrated that parasocial contact interventions were found to improve positive outgroup attitudes and increased support for LGBTI+ rights, enhanced perspective-taking, and decreased symbolic threat perceptions compared to the control group. However, parasocial contact interventions were not significant in reducing social distance toward LGBTI+’s. Lastly, there were no significant differences between emotion-, human rights-, and economy-based parasocial contact interventions in reducing prejudice toward LGBTI+. The findings are further discussed within the framework of the limitations and recommendations of this study. Keywords: Parasocial Contact, Prejudice, Outgroup Attitudes, Social Distance, LGBTI+ Rights.Item type:Item, Çokkültürlü İlkokullarda Demokratik Kültür Bilincinin Geliştirilmesinde Ebeveyn Katılımının İncelenmesi(Doğu Akdeniz Üniversitesi, 2023) Yıldızlı, Büşra; Kuter, Sıtkıye (Tez Danışmanı)Bu araştırmanın amacı ebeveynlerin, çocukta demokratik kültür bilincinin geliştirilmesinde eğitim sürecine katılımını incelemektir. Amaç doğrultusunda, ebeveynlerin demokratik kültür bilincine ilişkin algıları, eğitim sürecinde nasıl yer aldıkları, bu süreçte karşılaşılan zorluklar ve karşılaşılan zorluklara ilişkin yapılan çözüm önerileri incelenmiştir. Bu çalışma, fenomenolojik olarak tasarlanmış nitel bir çalışmadır. Amaçlı örnekleme yöntemiyle oluşturulan çalışma grubu, Kuzey Kıbrıs Türk Cumhuriyeti’nde Gazimağusa ve İskele ilçelerindeki çokkültürlü beş ilkokuldaki 5. sınıfta okuyan 10 öğrencinin ebeveyni, 15 öğretmen ve 5 okul müdüründen oluşmaktadır. Veriler, tüm katılımcılardan yarı yapılandırılmış görüşme formları aracılığıyla toplanmış ve içerik analizine tabi tutularak, tematik olarak analiz edilmiştir. Bulgular, ebeveynlerin demokratik kültür yetkinliklerine sahip olduklarına yönelik bir genelleme yapılamayacağını; söylemlerinin aksine, ebeveynlerin eğitim sürecine katılım göstermede yetersiz olduklarını göstermiştir. Ayrıca, bulgular çocuğun demokratik kültür bilinci kazanımı sürecinde, ebeveyn yaklaşımından, çocukların bireysel ve kültürel farklılıklarından, ekonomik durumlardan, geleneksel öğretim yöntemlerinden ve eğitim programları ve politikalarından kaynaklanan sorunların ebeveyn katılımını sınırladığını göstermiştir. Son olarak, bulgular ebeveyn katılımını sağlamak için, eğitim ve öğretim programlarının ve politikalarının yapılandırılmasına yönelik çözüm önerileri ortaya koymuştur. Anahtar Sözcükler: Ebeveyn katılımı, çokkültürlülük, demokratik kültür bilinci, demokratik birey
