Estimation of Building Height from ICESat-2/ATLAS and Airborne LiDAR Data Using Machine Learning Algorithms

Aslıhan Yücel

The height of buildings in cities are of critical importance to urban planning and sustainable growth, as these factors are closely linked to environmental, economic, social, and aesthetic elements that shape the structure and character of cities. The main purpose of this study is to calculate building heights using machine learning algorithms based on airborne LiDAR and ICESat-2 data in urban areas. Sub-objectives of the study to achieve the main objective are: (a) investigate the relationships between spaceborne and airborne LiDAR data and integrate the data, (b) investigate the performance ...Daha fazlası

Hand Gesture Classification Using Features of Multivariate Synchrosqueezing Transform Based Time-Frequency Matrix

Lütfiye Sarıpınar

El hareketi tanıma, insan-bilgisayar etkileşimi için anlamlı el hareketlerinin sınıflandırılmasına yönelik bir prosedürdür. Yüzey elektromiyografisi (sEMG), amaçlanan hareketlerle ilgili içsel bilgileri taşıdığı için el hareketi sınıflandırma çalışmalarında sıklıkla kullanılmaktadır. Bu tez çalışmasında, zaman-frekans (TF) matrislerinden çıkarılan özellikler ile TF matrislerinden Negatif Olmayan Matris Çarpanlarına Ayırma (NMF) yöntemiyle çıkarılan özelliklerin sınıflandırma başarısının karşılaştırılması sunulmaktadır. TF matrislerini elde etmek için 4 kanallı sEMG sinyaline Çok Değişkenli Sen ...Daha fazlası

The Effect of Social Support on Treatment Adherence and Self-Efficacy in Adult Patients with Type 2 Diabetes

Objective: To determine the effect of social support on adherence to treatment and selfefficacy in adult patients with type 2 diabetes. Material and Method: This cross-sectional study was conducted in at a university hospital’s inpatient diabetes clinic between January 2022-April 2022. The sample size of the study was determined as 431 as a result of the power analysis. In the study, Descriptive Characteristics Questionnaire, Multidimensional Scale of Perceived Social Support, Adherence Scale to Type 2 Diabetes Mellitus (DM) Treatment and Diabetes Management Self-Efficacy Scale for Patients wi ...Daha fazlası

Joining Aluminum 6061 Alloy Thin Sheets by Friction Stir Spot Welding Method

Serkan GÜNDOĞDU

In this study, the Friction Stir Spot Welding (FSSW) method was employed to join thin AA6061-T4 series aluminum sheets. The AA6061-T4 alloy used in the study has various applications, including aerospace and automotive industries. During the joining process using the FSSW method, emphasis was placed on three parameters: tool rotational speed, pin length, and pin width, considering the advantages of the aluminum alloy used. A total of 12 welding operations were performed with different parameter combinations. The obtained specimens were examined for their mechanical properties, temperature meas ...Daha fazlası

Usul As a Musical Idea: The Case of The Usul Zencir

SERKAN ÇELİK | CEM ÇIRAK

Evaluating the fundamental components of traditional Turkish music, particularly the concepts of "usul" (rhythmic composition) and "makam" (musical mode), as well as their significance in the composition and performance of works, has been a focus not only in musical practice but also in academic music studies. Nevertheless, certain issues pertaining to the functional analysis of rhythms, especially the larger rhythmic cycles, such as what they inherently represent in musical reality, how they are utilized, comprehended, and what roles they play in the composition and performance processes, hav ...Daha fazlası

Development of a Tele-Physiotherapy Device to Remedy Elbow Joint with Mobile App Support

Arda SARPAY

The aim of this thesis was to develop a wearable tele-physiotherapy device that addresses the remote elbow joint rehabilitation. The developed device consists of a wearable exoskeleton equipped with servo motor, joint angle sensor, EMG sensor, battery and Wi-Fi module. By connecting with the Android mobile application, it enables real-time monitoring of EMG data and programming of personalized exercise programs. The device offers convenience and comfort to patients by eliminating the need for face-to-face physiotherapy sessions and aims to reduce treatment costs and treatment time. The develo ...Daha fazlası

Investigation of the Effects of Statistically Significant Features on the Classification of EEG-Based Motor Imagery Tasks

Murside Degirmenci

Motor imagery (MI) task classification is highly prevalent in Electroencephalography (EEG)-based Brain-Computer Interface (BCI) research area. Extremity movement task classification and finger movement classification studies are presented in this thesis. In extremity movement classification, binary-class (right hand and left hand) and multi-class (right hand, left hand, right hand, and left hand) classifications are performed using 4 different feature extraction approaches and statistically significance-based feature selection (the independent t-test, one-way ANOVA test). Firstly, time- ...Daha fazlası

Effect of Sediment Load on the Time Evolution of the Morphology of a Large-scale Laboratory Movable-bed Symmetrical Confluence

Zehra Büyüker

Akarsu kavşakları doğal drenaj ağlarının temel unsurları olup oluşturdukları habitat yüksek ekolojik değer arz etmektedir. Yan kollardaki sediment yükü ve akım arasındaki etkileşim kavşak morfolojisini düzenleyen önemli bir faktördür. Yan koldan gelen sediment yükü ve debinin ana kanal boyunca yer yer oyulmalara ve yığılmalara sebebiyet verdiği, bunların sonucunda da taban topoğrafyasında zamana bağlı değişimlerin olduğu gözlemlenmektedir. Bu çalışmada İzmir Kâtip Çelebi Üniversitesi Hidrolik Laboratuvarında bulunan, simetrik iki yan kolun 90˚ açı ile ana kanala bağlandığı açık kanal kavşağı ü ...Daha fazlası

Performance Study of Darrieus Turbine Using Numerical Simulation

Abdelrahman ABUALEENEIN

In this study, CFD abilities to handle Darrieus turbine simulation were assessed and validated in light of related experimental and numerical studies. Simulation methodology is based on two-dimensional modeling of a double NACA 0018 bladed, straight blade Darrieus turbine. Modeling approach, meshing procedure, and solution parameters are mentioned and discussed in details. ANSYS fluent 18.2 is used to carry out all simulations. Experimental test’s data from literature [11] are implemented in context of results verification, also, Courant number and y plus analyses were provided. Due to the sim ...Daha fazlası

EXPLORING THE EFFECT OF PLACE ATTACHMENT ON THE IMPACTS OF TOURISM TO DETERMINE SIVAS RESIDENTS’ SUPPORT FOR TOURISM DEVELOPMENT

Furkan Atasoy KARACABEY

Residents’ perceptions of tourism impacts and their attitudes toward tourism development are among the topics that are frequently examined in the tourism literature. In particular, it is of great importance to determine the perceptions of the residents in the destination where tourism activities are not intense and tourism is not developed yet, in terms of ensuring sustainable tourism development in the destination. Therefore, this study aims to use two different structures (place attachment and the impacts of tourism) together to determine the intention of supporting tourism developments and ...Daha fazlası

Finite Element Analysis-Based Pre-operative Planning Applications of Tooth, Tibia, and Femur Bones

Samet Çıklaçandır

Ameliyat öncesi planlama veya eğitimde, zorlu cerrahi operasyonları kolaylaştırmak için 3D modelleme ve kişiye özgü kemik modeli kullanılabilir. Bu prosedür, 3D baskı ve simülasyonların gelişmesi nedeniyle daha etkili ve uygulanabilir hale geldi. Bunun yanında, sonlu elemanlar analizi (SEA) mekanik analiz sonuçlarına yakınsayarak kemik modellerinin ve çeşitli tıbbi ekipmanların oluşturulmasını daha hızlı ve daha güvenilir hale getirebilir. Fakat, simülasyonların ve mekanik testlerin modeller üzerindeki etkisi hala tartışmalıdır. Bu sebeple bu çalışmada femur başı ve medial malleol olmak üzere ...Daha fazlası

7th International Students Science Congress: Proceedings, 12-13 May 2023 = 7. Uluslararası Öğrenciler Fen Bilimleri Kongresi: Tam Metin Bildiriler Kitabı, 12-13 Mayıs 2023

Değerli Katılımcılar, Meslektaşlarım ve Uluslararası Öğrenciler, 7. Uluslararası Öğrenciler Fen Bilimleri Kongresi Tam Metin Kitabını etkinliğin yazarlarına ve katılımcılarına sunmak bizler için büyük bir onur ve ayrıcalıktır. Bunu yararlı, heyecan ve ilham verici bulacağınızı umuyoruz. Son altı yıldır çeşitli bilim dallarında çalışan genç uluslararası araştırmacıları bir araya getirmek amacıyla kongrelerimizi düzenledik ve bu hepimizi gerçekten motive etti. Geçen yıl olduğu gibi bu yıl da kongremizi hibrid bir şekilde düzenledik. Kongrenin ilk günü olan 12 Mayıs’ta, 200'den fazla katılımcının ...Daha fazlası