Communications, Series A2-A3: Physical Sciences and Engineering
Collections in this community
Recent Submissions
-
A method for analyzing suspect-filler similarity using convolutional neural networks
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)Eyewitness misidentifications are one of the leading factors in wrongful convictions. This study focuses on the structure of the lineups, which is one of the factors that cause misidentification, and the use of artificial ... -
Design and implementation of a microcontroller based split air conditioner control system
(Annkara Üniversitesi Mühendislik Fakültesi, 2022)Different methods should be developed to work on energy efficiency in the electrical systems that do not allow outside intervention in the control part. In this study, the command and control of split air conditioners is ... -
Determination of the surface topography in rill erosion by imaging techniques
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)Soil erosion, mainly occurring in agricultural areas, is an economic and ecological problem that can happen anywhere. Swelling and transport of soil particles reduce the productivity of agricultural lands. Soil surface ... -
A study on modeling growth model of Adana pigeons
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)The study aims to determine a mathematical model that can be used to describe the growth of the Adana pigeon. Since pigeons have only one breeding season, just one or two pairs of baby pigeons are raised per year. Hatchlings ... -
Utilization of deep learning architectures for MIMO detection
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)Applications of deep learning in communications systems are becoming popular today with their powerful solutions to complex problems. This study considers the utilization of deep learning detectors for small-scale ... -
Evaluation of the impact of I/Q imbalance compensation on communication performance
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)Quadrature mixing is widely used in wireless communication receivers since it provides a solution for image signal problem with low-cost implementations. Image signal is caused by phase and amplitude mismatches between ... -
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)We propose a formulation of Gamow states, which is the part of unstable quantum states that decays exponentially, with two advantages in relation with the usual formulation of the same concept using Gamow vectors. The first ... -
Classification of five different rice seeds grown in Turkey with deep learning methods
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)The increase in the world population and harmful environmental factors such as global warming necessitate a change in agricultural practices with the traditional method. Precision agriculture solutions offer many innovations ... -
The effects of DC offset in direct-conversion receivers for WLAN systems
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)In this paper, the effects DC offset in direct-conversion receivers for WLAN systems are analyzed using both experimental and simulation data. DC offset estimation is performed by using data-aided methods which are based ... -
3D reconstruction of coronary arteries using deep networks from synthetic X-ray angiogram data
(Ankara Üniversitesi Mühendislik Fakültesi, 2022)Cardiovascular disease (CVD) is one of the most common health problems that are responsible for one-third of all deaths around the globe. Although X-Ray angiography has deficiencies such as two-dimensional (2D) representation ... -
Estimating the frequency and bandwidth of square-split ring resonator (S-SRR) designs via support vector machines (SVM)
(Ankara Üniversitesi Mühendislik Fakültesi, 2021)In this study Support Vector Machine (SVM) based estimation technique is proposed for estimating the bandstop frequency and bandwidth of square-split ring resonators. Artificially engineered surfaces especially the planar ... -
Geant4 based dosimetry evaluation for gamma knife using different phantom materials
(Ankara Üniversitesi Mühendislik Fakültesi, 2021)This study examines the dose difference for a variety of phantom materials that can be employed for “Leksell Gamma” Knifes. These materials resemble human tissue by not including the skull bone. Geant4 was utilized in the ... -
Design and implementation of a low cost, high performance ionizing radiation source detection and source direction finding system
(Ankara Üniversitesi Mühendislik Fakültesi, 2021)This study shows the design, implementation, and test results of a low-cost portable radiation-detector system relies on a directionally designed multi detector probe that works in Geiger-Müller counting mode with a single ... -
A study on non-linear discrete-time state-space models and adaptive extended Kalman filter application on oscillatıon of an object tied to the end of spring
(Ankara Üniversitesi Fen Fakültesi, 2021-07-01)In this work, Adaptive Extended Kalman Filter (AEKF) is introduced and its use for oscillation of an object connected to the end of a spring is shown. As a new approach, an AEKF is used as a nonlinear estimation tool for ... -
A new astronomical parameter from remote sensing data: Astronomical clearness index (ACI)
(Ankara Üniversitesi Fen Fakültesi, 2021-07-01)Eastern Anatolia Observatory (DAG) project was initiated in Erzurum/Turkey in 2011. DAG will have Turkey’s largest (4 m) and first infrared telescope. The installation process is planned to be by taking its first light in ... -
Impurity effects on activation energy, structure and physical properties of Ybco superconductor
(Ankara Üniversitesi Fen Fakültesi, 2021-07-01)The influence of separately added 0.3 wt%, CdO, Bi2O3, BeO and SiO2 on the phase formation, microstructure, magnetic and transport properties of Y1Ba2Cu3O(7- δ ) (Y-123 or YBCO) fabricated by conventional solid state ... -
Analysis of Bragg curve parameters and lateral straggle for proton and carbon beams
(Ankara Üniversitesi Fen Fakültesi, 2021-07-01)Heavy ions have varying effects on the target. The most important factor in comparing this effect is Linear Energy Transfer (LET). Protons and carbons are heavy ions with high LET. Since these ions lose energy through ... -
Determining the most relevant input parameter set by using extreme learning machine
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this work, Extreme Learning Machine (ELM) algorithm is used to estimate the GDP per capita. The amount of electricity production, from four different sources, is chosen as input parameters. To find out the most relevant ... -
A new distributed denial-of-service detection system in cloud environment by using deep belief networks
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)This study presents new method to detect DDOS attacks by using Deep Belief Networks (DBN). The input data which represented the DDoS features in cloud environment are first analyzed by using DBN to extracted high level and ... -
Enhanced boost converter with gan based power switches and switched-capacitor
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)To increase the voltage gain of power electronic circuits, several voltage converters have been designed by researchers. Especially, the boost based converters are used by designers for numerous devices and systems because ...
RSS 1.0
