Ergün Umuroğlu, Reyda
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Reyda Ergün Umuroğlu
Ergün Umuroğlu, R.
REYDA ERGÜN UMUROĞLU
Kirkil G.
Ergün Umuroğlu,R.
Reyda, Ergun Umuroglu
ERGÜN UMUROĞLU, Reyda
Ergün Umuroğlu, REYDA
Ergun Umuroglu,Reyda
E.,Reyda
Reyda ERGÜN UMUROĞLU
Ergun Umuroglu, Reyda
E., Reyda
Ergün Umuroğlu, Reyda
ERGÜN UMUROĞLU, REYDA
Ergun Umuroglu,R.
R. Ergün Umuroğlu
Umuroğlu, Reyda Ergün
Ergün, Reyda
Ergün Umuroğlu, R.
REYDA ERGÜN UMUROĞLU
Kirkil G.
Ergün Umuroğlu,R.
Reyda, Ergun Umuroglu
ERGÜN UMUROĞLU, Reyda
Ergün Umuroğlu, REYDA
Ergun Umuroglu,Reyda
E.,Reyda
Reyda ERGÜN UMUROĞLU
Ergun Umuroglu, Reyda
E., Reyda
Ergün Umuroğlu, Reyda
ERGÜN UMUROĞLU, REYDA
Ergun Umuroglu,R.
R. Ergün Umuroğlu
Umuroğlu, Reyda Ergün
Ergün, Reyda
Job Title
Dr. Öğr. Üyesi
Email Address
Main Affiliation
Law
Status
Current Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
15
LIFE ON LAND
0
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
2
Research Products
14
LIFE BELOW WATER
0
Research Products
6
CLEAN WATER AND SANITATION
0
Research Products
3
GOOD HEALTH AND WELL-BEING
0
Research Products
17
PARTNERSHIPS FOR THE GOALS
0
Research Products
4
QUALITY EDUCATION
2
Research Products
2
ZERO HUNGER
0
Research Products
10
REDUCED INEQUALITIES
0
Research Products
7
AFFORDABLE AND CLEAN ENERGY
3
Research Products
13
CLIMATE ACTION
1
Research Products
1
NO POVERTY
0
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
11
SUSTAINABLE CITIES AND COMMUNITIES
0
Research Products
5
GENDER EQUALITY
1
Research Products
Documents
38
Citations
1468
h-index
15
This researcher does not have a WoS ID.
Scholarly Output
13
Articles
7
Views / Downloads
166/920
Supervised MSc Theses
1
Supervised PhD Theses
0
WoS Citation Count
8
Scopus Citation Count
12
WoS h-index
2
Scopus h-index
2
Patents
0
Projects
0
WoS Citations per Publication
0.62
Scopus Citations per Publication
0.92
Open Access Source
9
Supervised Theses
1
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| Journal | Count |
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| Energies | 2 |
| Applied Sciences-Basel | 1 |
| Frontiers in Built Environment | 1 |
| Gels | 1 |
| IEEE Access | 1 |
Current Page: 1 / 2
Scopus Quartile Distribution
Competency Cloud
13 results
Scholarly Output Search Results
Now showing 1 - 10 of 13
Conference Object Flow Structure in a Mixing Layer Developing Over Flat Bed at High Reynolds Numbers(Crc Press-Balkema, 2016) Kirkil, G.Results of a high resolution Detached Eddy Simulation (DES) are used to characterize the evolution of a shallow mixing layer developing between two parallel streams in a long open channel with a flat bed at a high Reynolds number (Re-D = 160,000). The influence of Reynolds number on the development of the mixing layer as well as the vertical non-uniformity in the mixing layer structure is discussed. The numerical results show that as Reynolds number increases, the mixing layer grows rapidly but also stabilizes more quickly. The shift of the centerline of the mixing layer is toward the low-speed side is less for high Reynolds number simulation than low Reynolds number simulation. Mixing layer growth rate and its change in the vertical direction are compared with experiments and a simulation at Re-D = 16,000. Passive scalar is introduced at the tip of the splitter plate close to the free surface to estimate the size of the mixing structures based on mass transport.Conference Object Citation - Scopus: 1Genesys-Mod Turkey: Quantitative Scenarios for Low Carbon Futures of the Turkish Energy System(IEEE Computer Society, 2022) Hasturk, I.S.; Celebi, E.; Yucekaya, A.D.; Kirkil, G.This paper examines the quantitative scenarios for low-carbon futures of the Turkish energy system at aggregated (country level) and regionally disaggregated (NUTS-1 level) levels. We have employed four different storylines for the future European energy system. They are quantified and implemented for the European energy system (30 regions, mostly single countries, including Turkey) using the open-source global energy system model, GENeSYS-MOD v3.0. We have compared the results of all scenarios at aggregated and disaggregated levels and found that there are significant differences among them. Specifically, the hydrogen production (and its use) has increased considerably in the disaggregated model when compared to the aggregated level results. The major reason for these differences is found to be the better estimation of regional renewable capacity factors (wind and solar) in the disaggregated level compared to aggregated level. © 2022 IEEE.Technical Report Türkiye’de Özel Sektör Çalışanı Lezbiyen, Gey, Biseksüel, Trans ve İntersekslerin Durumu : 2019 Yılı Araştırması(Kadir Has University, 2019) Göregenli, Melek; O’Neil, Mary Lou; Ergün, Reyda; Değirmenci, Selma; Erkengel, Doğancan; Köylü, Murat[Abstract Not Available]Article An Integrated Framework for Internal Replenishment Processes of Warehouses Using Approximate Dynamic Programming(MDPI, 2025) Kalafat, Irem; Hekimoglu, Mustafa; Yucekaya, Ahmet Deniz; Kirkil, Gokhan; Ediger, Volkan S.; Yildirim, SendaWarehouses are vital in linking production to consumption, often using a forward-reserve layout to balance picking efficiency and bulk storage. However, replenishing the forward area from reserve storage is prone to delays and congestion, especially during high-demand periods. This study investigates the strategic use of buffer areas-intermediate zones between forward and reserve locations-to enhance flexibility and reduce bottlenecks. Although buffer zones are common in practice, they often lack a structured decision-making framework. We address this gap by developing an optimization model that integrates demand forecasts to guide daily replenishment decisions. To handle the computational complexity arising from large state and action spaces, we implement an approximate dynamic programming (ADP) approach using certainty-equivalent control within a rolling-horizon framework. A real-world case study from an automotive spare parts warehouse demonstrates the model's effectiveness. Results show that strategically integrating buffer zones with an ADP model significantly improves replenishment timing, reduces direct picking by up to 90%, minimizes congestion, and enhances overall flow of intra-warehouse inventory management.Master Thesis Kadına Yönelik Şiddet ve Ev İçi Şiddetin İlgili Uluslararası Sözleşmeler ve 6284 Sayılı Kanun Çerçevesinde Değerlendirilmesi(Kadir Has Üniversitesi, 2020) Gündoğmuş, Rabia; Umuroğlu, Reyda ErgünThe purpose of writing this master's thesis is primarily to explain the gradual development of how violence against women and domestic violence are evaluated in human rights law. The legal framework on the prevention of violence against women and domestic violence in Turkey, which is regulated in parallel with international human rights law, is given under the second main title of the second part of the thesis. The main issue that the thesis seeks to put forward is how much respect is observed in the application of national law on violence against women and domestic violence and the international human rights law, which is a part of this law. After explaining the general concepts on the subject, the history of feminist theory is given until the end of the second wave. This is because a legal framework for the prevention of domestic violence is possible through public/private debates in radical feminist theory. However, since this study was conducted under the master of law program, positive developments in human rights law have been given place mainly. Developments in international positive human rights law are explained in historical order. The Istanbul Convention, which is a turning point in achieving a legal framework for the prevention and elimination of domestic violence, was taken as the starting point of the second part of the study. The binding effect of international human rights law on Turkish law was stated after the statements regarding the Istanbul Convention. Then the regulations in Law No. 6284 in national law were explained. The part that the thesis wants to put forward is; this is the section where the Law No. 6284 is evaluated in terms of implementation. It was found that the legal framework was largely in compliance with international standards, except for a few deficiencies, and that the main problem with national law is mainly due to implementation. In Turkey, where violence against women and domestic violence is very intense, the obligations related to prevention, protection and criminal liabilities arising from the Istanbul Convention and the law No. 6284 are not respected.Article Citation - WoS: 5Citation - Scopus: 7Integrating Technology Acceptance Model With Utaut To Increase the Explanatory Power of the Effect of Hci on Students' Intention To Use E-Learning System and Perceive Success(Institute of Electrical and Electronics Engineers Inc., 2025) Al-Sayid, F.; Kirkil, G.This study aimed to investigate the potential human-computer interaction factors (HCI) affecting students' behavioural intentions (BI) to use the e-learning system and perceive success. This paper proposes a comprehensive model, integrating the technology acceptance model (TAM) and unified theory of acceptance and use of technology (UTAUT). The data were collected via an online survey conducted on 232 students utilizing the Khas Learn system of Kadir has University in Turkey. The proposed hypotheses were tested by multi-linear regression. The results illustrated that the main predictors of students' success (SS) are behaviour intention, ease of use, usefulness, visual design, and learner interface interactivity which explained 53.6% of perceived success in using the system. While, the main predictors of BI are facilitating condition, effort expectancy, ease of use, and usefulness which explained 71% of the variance in continuance intentions to use e-learning. Therefore, the empirical findings provide strong backing to the technological-social-psychological dimensions extended by HCI main factors, which showed a high explanatory power in accepting e-learning technology and leads to enhance the SS, where five of the model's goodness-of-fit values meet five criteria of structural equation modeling (SEM). © 2013 IEEE.Article Citation - WoS: 1Citation - Scopus: 2The Role of Hydrogen in the Energy Mix: a Scenario Analysis for Turkey Using Osemosys(Mdpi, 2024) Tetik, Hepnur; Kirkil, GokhanThe urgent need to tackle climate change drives the research on new technologies to help the transition of energy systems. Hydrogen is under significant consideration by many countries as a means to reach zero-carbon goals. Turkey has also started to develop hydrogen projects. In this study, the role of hydrogen in Turkey's energy system is assessed through energy modeling using the cost optimization analytical tool, Open Source Energy Modelling System (OSeMOSYS). The potential effects of hydrogen blending into the natural gas network in the Turkish energy system have been displayed by scenario development. The hydrogen is produced via electrolysis using renewable electricity. As a result, by using hydrogen, a significant reduction in carbon dioxide emissions was observed; however, the accumulated capital investment value increased. Furthermore, it was shown that hydrogen has the potential to reduce Turkey's energy import dependency by decreasing natural gas demand.Article Citation - WoS: 2Citation - Scopus: 2Superior Conductivity of Transparent Zno/Mos2< Composite Films for Optoelectronic and Solar Cell Applications(Mdpi, 2023) Tareq, Shahad; Kirkil, Gokhan; OEzugur Uysal, BengueThe use of transparent conductive oxides in optoelectronics created a revolution where new-generation materials with high transmittance, low sheet resistance values, durability, and portability can be achieved without decreasing efficiency or increasing costs. Transparent ZnO/MoS2 sandwich-structured conductive composite films were produced in this study via the sol-gel method, which is considered the most efficient method due to its simple process and low cost. The crystal structure properties of ZnO/MoS2 were characterized via X-ray diffraction (XRD) patterns. The crystal sizes of ZnO films doped with different amounts of MoS2 were determined. A UV-visible absorption spectrometer was used to perform the spectroscopic analysis of the film. The area under the absorption curve and the full width of the half-maxima of absorbance data were calculated. Using these values, the optimum amount of MoS2 was determined for the best additive distribution. In addition, in order to determine the best transparent conductive material, resistance values measured via the four-point probe method were compared for different MoS2 additive amounts. The optical and electrical characterizations of transparent ZnO/MoS2 conductive oxide films were investigated. According to the parameters obtained via UV-vis spectroscopy, XRD, and four-point probe measurements, the most effective dispersion that exhibits a low width ratio and high resonance ratio was found for ZnO/MoS2 with a doping amount of 4 mg, the crystallite size of the films was found to be within the range of 21.5 and 24.6 nm, and these observations demonstrated a figure-of-merit value of more than 4.8 x 10(-2) with respect to these sandwich-structured films. Compared to the values of previous studies on various transparent ZnO-doped conductive oxide materials, it is possible to claim that these new films have a structure that is very similar to the transparent conductivity characteristics of other films, and they may even be superior relative to some MoS2 amounts.Technical Report Türkiye’de Kamu Çalışanı Çalışanı Lezbiyen, Gey, Biseksüel, Trans ve İntersekslerin Durumu : 2019 Yılı Araştırması(Kadir Has University, 2019) Göregenli, Melek; O’Neil, Mary Lou; Ergün, Reyda; Değirmenci, Selma; Erkengel, Doğancan; Köylü, Murat[Abstract Not Available]Article Effects of Classroom Temperature and Humidity on Student Learning Performance: An Experimental Study Using Sensor-Based Monitoring(Frontiers Media SA, 2025) Kirkil, G.This study investigates the relationship between classroom thermal environment and student learning performance in a controlled university setting using Arduino-based temperature and humidity sensors. The experiment was conducted over 2 weeks with 53 undergraduate students at controlled temperatures of 20 °C and 27 °C. Results demonstrate significant correlations between student thermal satisfaction, GPA, and learning outcomes. Multiple regression analysis reveals that thermal environment satisfaction and student GPA together account for 23.15% of the variance in student grades (p < 0.001). Students reporting higher thermal satisfaction achieved better exam performance and maintained higher motivation levels. The study employed a 5-point Likert scale questionnaire to assess thermal perception and learning motivation. While limitations include the absence of mean radiant temperature measurements and short study duration, findings suggest that maintaining optimal classroom thermal conditions (20 °C–22 °C) is crucial for academic performance. The sensor-based monitoring system proved effective for real-time thermal environment assessment in educational settings. © © 2025 Kirkil.
