The aim of this study is to investigate the seismicity of Aşkale County which is located 45 km from Erzurum city in eastern Turkey, a statistical frequency analysis is applied for the annual maximum earthquake magnitudes, occurred between 1900 – 2014 years in the seismotectonic zones around Aşkale County, using various probability distribution models (GEV, Gumbel, Gamma and Pearson III). The go...

Objective Distal femoral varus osteotomy (DFVO) is an effective treatment for unloading valgus knee malalignment; however, there is limited evidence on the ability for patients to return to athletics following this procedure. The purpose of this study is to report the functional outcomes and rate of return to sport for athletes that underwent DFVO. Design A consecutive series of athletes that h...

BACKGROUND Percutaneous endoscopic lumbar discectomy is a relatively new technique. Very few studies have reported the clinical outcome of percutaneous endoscopic discectomy in terms of quality of life and return to work. METHOD 55 patients with percutaneous endoscopic lumbar discectomy done from 2002 to 2006 had their clinical outcomes reviewed in terms of the North American Spine Score (NAS...

accurate estimate of flood flows at selected return periods is a fundamental step in flood control and design of hydraulic structures. due to the inadequacy or unavailability of flood flow records in several western catchments of iran, traditional regional flood frequency methods lead to remarkable estimate errors, particularly for long return periods. in this research, discriminant analysis is...

In order to examine the relationship between rainfall return periods and flood periods, design storm approach is compared rainfall–runoff continuous simulation frequency analysis approach. The former was based on event-based hydrological simulations, while latter simulations analysis. All were undertaken employing HEC-HMS software. For analysis, Generalized Extreme Value (GEV) probability distr...

estimation of the magnitude and frequency of maximum instantaneous discharges and hydrographs are used for a variety of purposes, such as the design of bridges, culverts, flood-control structures; and the management and regulation of floodplains. fuller (1914), developed a flood-frequency formula based on analysis of flood peaks in hundred of streams to provide simple methods of estimating maxi...

The distribution of outliers is used as a tool for finding the extreme value distribution of meteorological parameters and to provide return values for large return periods from short records. Its potential is demonstrated for five cases. For extreme winds in the Northern Hemisphere (NH) the method shows that appropriately transformed annual maximum wind speeds can be described by a Gumbel dist...


 Most of Nepal's river basins have poor hydro- meteorological databases, with several being ungauged. Thus, hydrological parameters need to be estimated using different types computation methods. The primary goal this study is identify the most accurate method for calculating peak flood and long-term mean monthly flow among commonly used methods in Nepal. We compared calculated various fo...