https://acikerisim.gumushane.edu.tr:443/xmlui The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. 2026-03-10T22:53:00Z https://hdl.handle.net/20.500.12440/6622 THE IMPACT OF CLEAN ENERGY RESEARCH AND DEVELOPMENT, HEALTH EXPENDITURE, AND ECONOMIC GROWTH ON ENVIRONMENTAL QUALITY Al, İbrahim; Yildiz, Barış; Akbulut Yildiz, Gizem This study investigates the impact of clean energy technologies, health expenditure, and economic growth on environmental quality using the Fourier Engle-Granger cointegration method for the United States in the 1974–2022 period. The Fourier approach successfully identifies gradual structural shifts and nonlinear dynamics in long-run relations, which are frequent in macroeconomic and environmental time series but are typically overlooked by standard approaches. The findings show that clean energy research and development investment—specifically in energy efficiency, renewable resources, and nuclear technologies—and health expenditures significantly positively impact environmental quality. However, economic growth has a negative impact environmental quality in the United States. These results highlight the necessity of integrating environmental objectives into energy and health policy and prioritizing investment in sustainable technologies to achieve ecological sustainability in the long term. © 2025, ALÖKI Kft., Budapest, Hungary. 2025-01-01T00:00:00Z https://hdl.handle.net/20.500.12440/6621 Application of edge detection methods to İzmit Gulf magnetic data Aktaş, Gülten; Demirel, A. Sinan The Gulf of İzmit, which is in the northeast of the Marmara Sea, has significant implications for seismic hazard predictions due to its location on the northern branch of the North Anatolian Fault. The structural lineaments of the Gulf of Izmit were defined using high-resolution magnetic data. Initially, the data were corrected diurnal correction and filters were applied to remove noise effects. In addition, first vertical derivative, analytical signal, tilt angle, tilt angle of horizontal gradient (TAHG), softsign function (SF) filter methods were applied to the data to extract the lineaments of İzmit Gulf, and the boundaries of structural elements. TAHG and SF filters produced sharp and clear edges in the identification of structural elements causing magnetic anomalies. The main trend of the obtained lineaments is in the E-W and NE-SW directions in the gulf. The findings obtained from this study were also evaluated with seismic reflection sections and it was observed that the faults and lineaments in the sections were quite compatible. Thus, magnetic results provide a reliable structural map for a better understanding of the tectonic and structural framework of the İzmit Gulf. Thus, it is clear that the linearity map of the region obtained from the study will contribute to new research to be carried out in the future. © 2024, Gumushane University. All rights reserved. 2024-01-01T00:00:00Z https://hdl.handle.net/20.500.12440/6620 Exploring the utilization potential of kaolin in the Balıkesir Sındırgı region Erkan, İlker; Alp, İbrahim Natural kaolins may contain some metal cations (K+, Na+, Mg+2, Ca+2) and anions such as carbonate, phosphate, and sulfate as impurities, depending on the formation conditions. The kaolins of Turkiye generally give a high-quality white color after firing due to their low Fe2O3 content. Unfortunately, Turkiye’s kaolin deposits generally contain high levels of SO3. Since the alunite mineral, which is the source of SO3, cannot be removed from the structure by known methods, kaolins containing alunite can only be used in the white cement sector. In this study, the suitability of the kaolins of the Balıkesir Sındırgı region, which has a large part of the kaolin reserves of Turkiye, to the areas of use where kaolin is mostly used in its current state has been investigated, and the samples obtained from the region have been examined in which areas of use they are suitable for use in raw form, and suggestions have been made about the enrichment methods to be carried out by comparing with the studies in the literature. © 2024, Gumushane University. All rights reserved. 2024-01-01T00:00:00Z https://hdl.handle.net/20.500.12440/6619 Installation and operation of earthquake acceleration and magnetic field stations in Gümüşhane Maden, Nafız; Öztürk, Serkan; Pehlivan, Levent; Sari, Mahmut; Beker, Yasemin In this studyit is aimed to establish three accelerometers and Flux-Gate magnetometer to estimate the affection level of Gümüşhane province from an earthquake occurred in the North Anatolian Fault Zone (NAFZ) zone and to observe the changes in earth magnetic field due to sun storms. It is considered that the accelerometers (3 units) must be installed in Karaca Cave which is an important place of Gümüşhane for its tourism; in hydroelectric station of Kürtün dam which is an important engineering structure in terms of energy production, agriculture, and water sports, and in Şiran which is a close to the NAFZ. Flux-gate magnetometer is built in Gümüşhane. The Torul and Kürtün towns are less affected whereas the Kelkit, Şiran and Köse towns are more affected from an earthquake which is occurred in the NAF zone. Karaca Cave, 17 km northwest of Gümüşhane, is one of the most important tourism in this region. The Kürtün Hydroelectric Power Plant, built on the Harşit River in Kürtün district, not only serves for energy purposes, but also provides the opportunity for fish production and water sports on the dam lake. Storms which are due to the sudden and severe explosions in the sun may cut the electricity and communications line, may cause the shortcomings in radio communications, and may cause radiation on humans. Gümüşhane has a great potential in terms of lead, zinc, copper, gold, and silver. Magnetic method, one of the Geophysical methods, has been successfully used to search such kind of mineral deposits. In this method, it will serve to continuously record the ground magnetic field while taking measurements in the field. © 2024, Gumushane University. All rights reserved. 2024-01-01T00:00:00Z