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In this study, flood simulation analysis was carried out for the natural channels in the urban area and a risk map of flood waters was formed. For this purpose, Horata channel in Malatya city center was selected as the application area where there are a total of four streams, which have the flood risk potential. The flood events observed in the past were investigated and the factors that cause it were evaluated. Flood hydrographs were obtained for 50, 100 and 500 year return periods for the Horata channel. Info-works ICM was used for flood simulation and flood analysis was performed for different recurrence periods. It was observed that stream sections were inadequate and settlement areas would be adversely affected especially for the return period of500years. As a result, flood propagation maps were created for each case and the affected areas were determined. According to the results of these analyzes, the regions where the risk of floods are high can be listed as follows, especially where the natural flow is disturbed, the section is constricted for bridging, the areas where meandering are formed, regions where the section is insufficient. [ABSTRACT FROM AUTHOR]

In exploration of groundwater, unlike the layers showing regular sequence, stratigraphic traps (sand, gravel, clay lens) are always a problem. In addition to geological characteristic of the lens structures, geophysical methods are used to identify geometric features of the lens such as locations, dimensions, thickness and depth. It also identifies physical features such as conductivity, resistivity and porosity. The study area is located in the north of Corlu Sarilar village of Tekirdag (Marmara region). It is also located in the west part of Corlu creek flowing in the direction of NE-SW. The lowest level of the study area is 123 mt. and the highest level is 146 mt. In the study area, geological structures were analyzed for modelling the stratigraphic traps in the different level and dimension of Pliocene aged Corlu formation using the geoelectric method. In the geophysical study, Vertical Electrical Sounding (VES) method was applied in 21 points using Schlumberger array. Line length (AB/2) is 300 m. Geometric locations of stratigraphic traps were monitored and physical features were tried to define by generating resistivity level map and two dimensional geoelectric profile obtained from VES resistivity values. Resistivity values in the region are between 18.5 Ohm-m and 7.0 Ohm-m, while low resistivity zones are observed at shallower depth. [ABSTRACT FROM AUTHOR]

Nowadays, in many recent applications; the data size become too large to be managed within the limited storage environments. In such applications, the data is a streaming data and has a continuously flowing data format. Queries on streaming data are performed using declarative queries, as opposed to queries made on classical databases. Declarative queries provide the ability to filter on a continuous data stream. In addition, they provide the ability to follow the data that match the conditions in the queries. Systems with a data structure in a continuous data flow format can be considered Event-based Systems, in which unit data can be considered as a real event. In such systems; realtime detection of complex events that will trigger business processes is becoming an important need. Within the scope of this research, a Complex Event Monitoring Infrastructure is proposed to address this deficiency. The proposed infrastructure provides the detection of complex events, which form the preconditions for initiating business processes in Event-based Systems. In order to demonstrate the usability of the proposed infrastructure, a prototype application has been developed for e-commerce web sites, where the click-stream data is generated in a streaming data format. Prototype application continuously monitors customer click-stream data collected from the Web site, where the trade takes place (e-commerce environment). Each click-stream data, labeled with a timestamp, is considered as an event data. By combining the basic events, occurring within a certain time period, complex events are identified and the appropriate business processes for corresponding commercial activities are triggered. The developed application was evaluated from the perspective of performance and scalability, and positive results were obtained indicating the usability of the proposed infrastructure. [ABSTRACT FROM AUTHOR]

In this study, regional flood frequency analysis is carried out for annual maximum flood series of stream gauging stations in the West Mediterranean River basins in Turkey based on an index flood method with L-moments parameter estimation. The region is divided into three homogeneous subregions; Antalya, Lower West Mediterranean and Upper West Mediterranean subregion using L-moment homogeneity test. After determining the homogeneous subregions, design floods with various recurrence intervals are calculated for stream gauging stations in each homogeneous subregions. [ABSTRACT FROM AUTHOR]