http://dspace.beu.edu.tr:8080/xmlui/handle/123456789/13739 2026-04-23T06:58:43Z 2026-04-23T06:58:43Z BAYRAKCI, Ugur TULUCE DEMIRAY, Seyma YILDIRIM, Vehpi http://dspace.beu.edu.tr:8080/xmlui/handle/123456789/13903 2024-02-05T11:48:58Z 2022-01-01T00:00:00Z

New Soliton Solutions Arising in Some NLEEs BAYRAKCI, Ugur; TULUCE DEMIRAY, Seyma; YILDIRIM, Vehpi We have worked on (2+1)-dimensional dissipative long wave system (DLWS) and (2+1)-dimensional Date-Jimbo-Kashiwara-Miwa (DJKM) equation. We have applied GKM, which has been obtained by generalizing the Kudryashov method, to the (2+1)- dimensional DLWS and (2+1)-dimensional DJKM equation. Thus, we have got some new soliton solutions of handled system and equation. We have plotted 2D and 3D surfaces of these acquired results by using Wolfram Mathematica 12. Then, we have shown the validity of the acquired solutions.

2022-01-01T00:00:00Z AYDIN, M. Cihan BIRINCIOĞLU, Elif Sevgi BÜYÜKSARAÇ, Aydın http://dspace.beu.edu.tr:8080/xmlui/handle/123456789/13902 2024-02-05T11:42:46Z 2022-01-01T00:00:00Z

Risk Assessment of Rockfall using GIS-Based Analytical Hierarchy Process: A Case Study of Bitlis Province AYDIN, M. Cihan; BIRINCIOĞLU, Elif Sevgi; BÜYÜKSARAÇ, Aydın Rockfall is one of the important natural disasters that can result in death, although it does not occur very often. Bitlis province in Turkey is frequently exposed to serious rockfall events due to its ruggedmountainous structure and harsh climatic conditions. Rockfall risk rely on many hazard factors such as slope, lithology, soil, elevation, precipitation, vulnerability factors i.e., land use and population. The Analytical Hierarchy process (AHP) is a highly skilled approach for risk assessment studies involving multiple decision-making criteria. In this study, the rockfall risk assessment of the province of Bitlis, which was chosen as the study area, was performed using AHP, and discussed. Geographic Information System (GIS) were used to visualize the results maps. The study concluded that the rockfall risks were mostly concentrated in the mountainous and rugged southwest and partially southeast areas, including the city and district centers. Except for the foothills of the volcanic mountains, the northern parts of the study area were generally considered as risk-free. The risk zones obtained from the study are relatively consistent with the results of a previous limited study.

2022-01-01T00:00:00Z TANYILDIZI, Muhammed http://dspace.beu.edu.tr:8080/xmlui/handle/123456789/13900 2024-02-05T11:36:35Z 2022-01-01T00:00:00Z

The effect of cement replacement with eggshell powder on the sorptivity index of concrete TANYILDIZI, Muhammed Most concrete structures undergo severe durability issues throughout their service of life. The transition and movement of water through concrete structures is one of the main issues in the aspect of durability. The main aim of this study is to investigate the effect of cement replacement in various ratios with eggshell powder on the sorptivity (capillarity water absorption) capacity of concrete. Eggshell is a bio-waste material obtained from bakers, restaurants, and patisseries. Disposing of this waste material in landfills results in health hazards and causes environmental pollution. The use of eggshell powder in concrete, which is the most used and essential building material after water all over the world, is a beneficial way both minimize the detrimental effects of this waste on living health and the environment and also ensure the sustainability of the materials in concrete. In this paper, five different eggshell powder substitutions as 0%, 5%, 10%, 15%, 20% were employed in experimental analyses. The sorptivity index of concretes was measured at the end of each 5, 10, 15, 30, 45, and 60 minutes. The test results indicated that the sorptivity namely capillary water absorption decreased with up to a level of 5% replacement and increased with the other replacement ratios including 10%, 15%, and 20% when compared with the control concrete’s result. This is attributed to the ESP may act as a better inert filler when replaced with cement up to a level of 5% to reduce the capillary pore, increase the compactness of concrete microstructure, impermeability and restrain the transition of water in the concrete structure.

2022-01-01T00:00:00Z ÇAĞDAŞ, Emine BÜYÜKSARAÇ, Aydın IŞIK, M. Fatih http://dspace.beu.edu.tr:8080/xmlui/handle/123456789/13898 2024-02-05T11:27:53Z 2022-01-01T00:00:00Z

Early intervention to risk groups with the QR code system in disasters ÇAĞDAŞ, Emine; BÜYÜKSARAÇ, Aydın; IŞIK, M. Fatih While disasters are situations in which people cannot cope with their own capacities, it is impossible for risk groups that need the care of others not to be affected by it. Our country is frequently exposed to disasters due to its geopolitical position, irregular population growth, being a developing country, increased industrialization, insufficient infrastructure, and many other reasons. It is very important that disadvantaged community members who need help are easily accessible and identifiable at the time of disaster. The main purpose of this study is to provide the fastest, most accurate and reliable information to the elderly living alone, to children who lost their parents during the event, to women, to those who cannot do the work they need to do on their own in their personal or social life due to any deficiencies, to those who have their own disease and who have been harmed by disasters. In this study, the risk groups that will be affected by disasters were determined and the data of the people created as an example were transferred to the data matrix system. First of all, individuals in risk groups (disabled, chronic patients, elderly, children and women) were determined and then a data matrix was created on the website.

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