نتایج جستجو برای: flood maximum flow rate
تعداد نتایج: 1630931 فیلتر نتایج به سال:
Determination of possible waterlogging points of drainage network of Fooladshahr city in urban flood
Nowdays, more than half of the worldchr('39')s population lives in urban areas, increasing land use change leads to an increase in impermeable land, which greatly reduces the possibility of rainwater infiltration into the land. In this study, Fooladshahr city of Isfahan province was selected as the study area to determine possible flooding points. Previous studies and experimental methods were ...
With the current climate changes, it is essential to understand the mechanisms that govern floods and flow regimes and their effects on the dynamics of riparian forests. The aim is to assess the effects of new hydrological conditions (increase in flood frequency) on forest stands subject to frequent floods. The sampling sites (total of 94 quadrats) are located in riverine woodlands, and the cho...
Background: Cirrhosis and portal hypertension influence the hepatic circulation. The purpose of this study was to evaluate the diagnostic accuracy of liver Doppler ultrasonography parameters in cirrhosis.Methods: This case-control study involved 118 subjects. All case subjects had biopsy-proven hepatic cirrhosis. The controls were healthy people, case-matched for age and gender. All cases and c...
A numerical model is developed to determine the flow depth and discharge relationship for turbulent flows over vegetated flood plains. The model is based on the turbulent boundary layer similarity concepts developed for atmospheric and pipe flow hydraulics. Here, the Darcy–Weisbach formula is modified to account for vegetative resistance by application of surface roughness lengths developed fro...
A portion of Arizona's San Pedro River is managed as a National Riparian Conservation Area but is potentially affected by ground-water withdrawals beyond the conservation area borders. We applied an assessment model to the Conservation Area as a basis for monitoring long-term changes in riparian ecosystem condition resulting from changes in river water availability, and collected multi-year dat...
Based on the field data of velocity profile observed at 23 measuring sites distributed over the Changjiang River Estuary in March and September, 1996, the momentum coefficients are calculated and their temporal and spatial distribution characteristics are obtained through statistical analysis. For different typical time interval and different places in the Changjiang River Estuary, the results ...
INTRODUCTION Bladder emptying in crouching position is a conventional way in many eastern countries. Our aim was to evaluate uroflowmetry parameters as an index of obstruction severity in standing and crouching positions and comparison of them in patients with bladder outlet obstruction symptoms. MATERIALS AND METHODS Uroflowmetry in standing and crouching positions was done in 83 patients wi...
The objectives of the study were to measure the effects of an experimental flood on : (1) leaf litter production by the riparian forest; (2) leaf decomposition; and (3) the amount of forest floot organic matter. The study area is located at Bosque del Apache National Wildlife Refuge, approximately 160 km south of Albuquerque, New Mexico. Experimental and reference study sites of about 3·1 ha we...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید