Person: KORKMAZ, HAYRİYE
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
KORKMAZ
First Name
HAYRİYE
Name
6 results
Search Results
Now showing 1 - 6 of 6
Publication Open Access Performance of Hyperparameters in Prediction with Deep Neural Networks of Electrical Properties of Nano-Coated Glasses Nano-Kaplamali Camlarin Elektriksel zelliklerinin Derin Sinir Aglari Ile Tahmininde Hiper Parametrelerin Performansi(2023-01-01) KORKMAZ, HAYRİYE; Yenginer H., Eraslan S., Gundogdu B., KORKMAZ H.Nano-coated glasses are widely used in different fields such as industry, transportation and architectural structures. After these glasses are obtained by various thin film coating applications, they are subjected to the heat treatment process (tempering, bending, etc.), which is considered as a secondary process. Both of these two-stage processes lead to changes in the electrical and mechanical properties of the final product. While electrical properties such as transmittance, coated surface reflection and uncoated surface reflection values obtained as a result of the first stage can be calculated by analytical methods; the chaotic nature of the second stage does not allow these parameters to be calculated with similar methods. Therefore, in this study, a multi-input-multi-output deep neural network structure was designed for the estimation of the electrical properties of the nano-coated glass type produced for commercial use in architectural fields. Moreover, The dataset with 64 different coating types was augmented by adding noise technique and the performances of the hyperparameters in prediction success were compared. The performance of the network structure was measured by the mean absolute error, mean squared error, and coefficient of determination metrics. The designed network structure was tested on 16 samples and according to the results obtained, it was observed that the best performance was achieved with the Adadelta learning algorithm and ReLU activation function on the augmented data set.Publication Open Access A novel monitoring dashboard and hardware implementation simplifying the remote access in industry(2023-07-18) KORKMAZ, HAYRİYE; Korkmaz H., Demir E.In today’s world where technology is developing with a great speed, it is getting harder day by day to adapt or include changes on new technology to the processes in facilities. Insisting on using conventional solutions adopted so far in industrial facilities cause problems to compensate the changing fast consumption needs of today. Adopting recent technologies improves the maintenance and troubleshooting processes of the facilities, accelerates the production and increases the quality of production. In this way, technology based smart systems can provide the devices or machines with the skills required for problem solving and system development in the industry. In this study, a remote monitoring and control application is proposed for a frequency inverter which is widely used and critical device for motor driving in industrial facilities is discussed and a novel internet of things (IoT) based communication gateway is developed. In this way, it is intended to improve the problem solving skills of field personnel by contributing with remote support.Publication Metadata only Real–time instrument control via internet by using labVIEW graphical development platform(2008-05-08) BAL, SEZEN; KORKMAZ, HAYRİYE; Bal S., Korkmaz H.In this work, a Remotely Accessible and Configurable Electronics Laboratory (RACEL) system is designed in LabVIEW graphical development platform. This LabVIEW application performs several tasks as follows: user interface design, publishing and sharing measured data, instrument control, and remote access to system in the campus lab. This paper describes how to control an instrument existing in the laboratory via a PC on-lab or on-line by using instrument drivers in LabVIEW. Readers can also find the information about where to find and how to download instrument drivers provided by NI or other vendors. In addition, how to turn any LabVIEW application into a remote application accessed via a Web browser without any additional development time is explained in detail. The instruments used in the work are a dc power supply and a data acquisition/ switch unit (multimeter) which are remotely controllable ones having a GPIB interface. Ensuring instrument control and publishing the front panel on the web, students are allowed to access and control the system variables such as adjusting dc power supply’s output to a desired value by clicking the knob or dragging the slider position up/down on the user interface seen on client PC’s monitor.Publication Open Access A Novel Monitoring Dashboard And Hardware Implementation Simplifying The Remote Access In Industry(2023-01-01) KORKMAZ, HAYRİYE; Demir E., KORKMAZ H.In today\"s world where technology is developing with a great speed, it is getting harder day by day to adapt or include changes on new technology to the processes in facilities. Insisting on using conventional solutions adopted so far in industrial facilities cause problems to compensate the changing fast consumption needs of today. Adopting recent technologies improves the maintenance and troubleshooting processes of the facilities, accelerates the production and increases the quality of production. In this way, technology based smart systems can provide the devices or machines with the skills required for problem solving and system development in the industry. In this study, a remote monitoring and control application is proposed for a frequency inverter which is widely used and critical device for motor driving in industrial facilities is discussed and a novel internet of things (IoT) based communication gateway is developed. In this way, it is intended to improve the problem solving skills of field personnel by contributing with remote support.Publication Metadata only Efficient Deployment of Wireless Sensor Nodes with Evolutionary Approaches(2022-01-01) KORKMAZ, HAYRİYE; Birtane Akar S., KORKMAZ H., Sahingoz O. K.© 2022 IEEE.In previous WSN studies, it was observed that there are two common methods used in coverage area calculation: 1) image processing technique or 2) mathematical formulas. calculation of the coverage area, if the sensing ranges of the mobile nodes intersect (overlap) each other, the processing time increases while the calculation result is wrong. In this study, a new method is proposed to calculate the coverage area with relatively high accuracy, including the overlap conditions, but in a shorter time. In this method, the points that were placed as targets to be tracked in the Region of Interest (ROI) in the previous studies are now used in a different way. All covered points by any node are counted to calculate the area. However, in this case, the number of points placed in the area should be much higher than in the previous cases. Coverage performance is calculated by counting the points covered by the WSN nodes and dividing them by the total number of points defined initially. (Coverage rate) First of all, to decide the experiment\"s initial conditions, 57 different cases were simulated. Different number of sensor nodes with different radii (25, 50, 100, 200) was considered and then the average of the error rate of all cases was calculated. The lowest error value was obtained in the case of the 2000×2000 area. Therefore, an area of 2000×2000 was preferred in the next steps. It can be concluded that, this method is a promising method to calculate the coverage rate in WSNs.Publication Metadata only Production of the go-doped pla-based nanofibers and investigation of their electrical properties(2018-07-18) TERZİ, ÜMİT KEMALETTİN; KORKMAZ, HAYRİYE; EKREN, NAZMİ; GÜNDÜZ, OĞUZHAN; CESUR, SÜMEYYE; Özen S., Aydoğdu M. O., Ege Z. R., Cesur S., Terzi Ü. K., Korkmaz H., Ekren N., Gündüz O.