نتایج جستجو برای: channel confluence

تعداد نتایج: 229276  

Journal: :Revista espanola de enfermedades digestivas : organo oficial de la Sociedad Espanola de Patologia Digestiva 2014
Javier Sola-Vera Francisco Uceda Rubén Cuesta Narcís Vázquez

BACKGROUND Cholangioscopy is a useful tool for the study and treatment of biliary pathology. Ultrathin upper endoscopes allow direct peroral cholangioscopy (DPC) but have some drawbacks. OBJECTIVE The aim of the study was to evaluate the success rate of DPC with an ultrathin endoscope using a balloon catheter to reach the biliary confluence. MATERIAL AND METHODS Prospective observational st...

Journal: :Acta Geophysica 2022

Abstract River confluences have a complex flow and sedimentation pattern that vital influences on the hydraulic bed morphology of river reach surrounding area. Confluences can be observed in waterways with various situations such as live conditions. This condition is hydro-morphological situation high densimetric Froude number, i.e., load transport supplied from upstream. According to literatur...

Journal: :Earth Surface Processes and Landforms 2023

The spatial patterns of transport-effective flows at confluences and the relation these to channel morphology remain poorly understood. This field study uses acoustic Doppler current profiler measurements explore structure different three small stream where flow have been obtained previously using electromagnetic meters or velocimeters for events incapable mobilizing bed material with much smal...

Journal: :Natural Hazards 2022

The confluence of the Ganges, Jamuna, and Padma rivers is one most dynamic in world, an internationally important research area because two world's major rivers, Ganges Brahmaputra. Morphological changes this have resulted severe erosion along banks. Riverbank Bangladesh's critical issues, requiring a substantial solution. affects millions people Bangladesh each year zone. Consequently, underst...

Journal: :Journal of anomalous experience and cognition 2022

This paper is an exploratory sociological analysis of poetic confluence, a spontaneous telepathic phenomenon that occurs in everyday social interaction. In one person’s talk exhibits enigmatic relationship to another’s unstated thoughts or imagery at moment. The analyses draw from empirical approach called Conversation Analysis, formal qualitative method for the naturally occurring interaction ...

Journal: :Engineering, Technology & Applied Science Research 2014

2008
Stephen P. Rice Bruce L. Rhoads André G. Roy

That river systems are networks consisting of links and nodes is one of their most obvious characteristics. Despite the ubiquity of confluences and tributary networks, the first century of modern fluvial geomorphology paid little consistent attention to river junctions and the interactions between tributaries and the main stem (Kennedy, 1984). Important exceptions include classic contributions ...

2007
HONGMING HE JIE ZHOU QIAN YU YONG Q. TIAN ROBERT F. CHEN

Floods cause environmental hazards and influence on socio-economic activities. In this study, we evaluated the historic flood frequency at a confluence in the middle Yellow River, China. A non-parametric, multivariate, empirical, orthogonal function matrix model, which consists of time correlation coefficients of flood discharge at different gauge stations and flood events was used for the anal...

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