نتایج جستجو برای: drainage basin asymmetry af

تعداد نتایج: 152292  

Journal: :Pakistan journal of medical sciences 2016
Suleyman Surer Mustafa Seren Onur Saydam Ali Bulut Ugursay Kiziltepe

OBJECTIVE Diabetes mellitus is recognized as a risk factor for mortality and morbidity after coronary bypass grafting. We aimed to determine the association between preoperative hemoglobin HbA1c and AF after isolated off-pump coronary bypass grafting (OPCAB). METHODS The seventy-two diabetic patients undergoing isolated off-pump coronary bypass grafting were retrospectively analyzed for AF. T...

Journal: :international journal of aquatic biology 0
erick cristofore guimarães laboratório de sistemática e ecologia de organismos aquáticos, centro de ciências agrárias e ambientais, universidade federal do maranhão. campus universitário, ccaa, br-222, km 04, s/n, boa vista, cep 65500-000, chapadinha, ma, brasil. felipe polivanov ottoni laboratório de sistemática e ecologia de organismos aquáticos, centro de ciências agrárias e ambientais, universidade federal do maranhão. campus universitário, ccaa, br-222, km 04, s/n, boa vista, cep 65500-000, chapadinha, ma, brasil. axel makay katz laboratório de sistemática e evolução de peixes teleósteos, departamento de zoologia, instituto de biologia, universidade federal do rio de janeiro. cidade universitária, cep 21994-970. rio de janeiro, rj, brasil. pâmella silva de brito laboratório de sistemática e ecologia de organismos aquáticos, centro de ciências agrárias e ambientais, universidade federal do maranhão. campus universitário, ccaa, br-222, km 04, s/n, boa vista, cep 65500-000, chapadinha, ma, brasil.

the present study reports range extansion of moenkhausia oligolepis to the pindaré river drainage, of the mearim river basin, and itapecuru river basin, maranhão state, northeastern brazil. this species was previously known only from venezuela, guianas, and the amazon river basins. in addition, we present some meristic and morphometric data of the specimens herein examined and discuss on its di...

Journal: :international journal of environmental research 0
a. kavian department of rangeland & watershed management engineering, sari agricultural sciences and natural resources university, sari, iran y. fathollah nejad department of rangeland & watershed management engineering, sari agricultural sciences and natural resources university, sari, iran m. habibnejad department of rangeland & watershed management engineering, sari agricultural sciences and natural resources university, sari, iran k. soleimani department of rangeland & watershed management engineering, sari agricultural sciences and natural resources university, sari, iran

there is a need to analyze and map rainfall erosivity to assess soil erosion at the regional scale. the objectives of this study were to develop a regional model to estimate seasonal erosivity from seasonal rainfall data and to study temporal and spatial distribution of rainfall erosivity for the gorganrood drainage basin in the northeast of iran. six gauging stations with a high temporal resol...

Journal: :international journal of environmental research 2011
a. kavian y. fathollah nejad m. habibnejad k. soleimani

there is a need to analyze and map rainfall erosivity to assess soil erosion at the regional scale. the objectives of this study were to develop a regional model to estimate seasonal erosivity from seasonal rainfall data and to study temporal and spatial distribution of rainfall erosivity for the gorganrood drainage basin in the northeast of iran. six gauging stations with a high temporal reso...

2015
Chandan Kumar

In this present study, Remote Sensing (RS) and Geographical Information System (GIS) techniques are used to update drainage and surface water bodies to evaluate linear, relief and aerial morphometric parameters and to prioritize the watersheds of the Markandeya River Sub-Basin (MRSB), located in Belgaum district of Karnataka state,India. The Markandeya River Sub-Basin has sub-dendritic to dendr...

With regard to the importance of instantaneous peak discharge estimation for watershed management study, and due to the lack of and unqualified climatic and hydrologic data for estimation and measurement in countries such as Iran, researchers were obliged to establish a link between constant parameters (geomorphologic) and variables (hydrologic) to present models with minimum dependence on clim...

2009
Dorothy Sack D. Sack

Lakes have long been recognized as being rich storehouses of environmental information. A lake basin collects water, but also sediment, much of which has been weathered and transported via fluvial processes from the near and far reaches of its drainage basin. The amount of water held in a lake is recorded on the landscape in coastal erosional and depositional landforms created at the water’s ed...

2007
EDMUND ATKINSON Edmund Atkinson

A key component of a sediment yield prediction is an estimate of the sediment deposition between erosion sources and a drainage basin outlet. This technical note presents methods requiring a minimum of data which can be used to assess the importance of sediment deposition within the river system of a basin. The methods were applied to a 4123 km basin in the Philippines. Results indicated that s...

2012
Eric Silva Abreu Sergio Rosim Camilo Daleles Rennó João Ricardo de Freitas Oliveira Alexandre Copertino Jardim Jussara de Oliveira Ortiz Luciano Vieira Dutra

This paper describes TerraHidro that is a distributed hydrologic modeling platform. TerraHidro is general purpose water resources system that presents a new concept to represent water flows based on graph structure, in the geographic information system (GIS) context. The drainage extractions and Amazonian basin delimitations using TerraHidro have been compared with ArcGis Hydro Tools regarding ...

Journal: :IEICE Transactions 2009
Musun Kwak Hanrok Chung Hyukmin Kwon Jehyun Kim Daekyung Han Yoonseon Yi Sangmun Lee Chulgu Lee Sooyoul Cha

Using frictional force microscopy (FFM), the friction surface characteristics were compared between twisted nematic (TN) mode and vertical alignment (VA) mode alignment films (AFs). The friction asymmetry was detected depending on temperature conditions on TN mode AF, but not on VA mode AF. The difference between two modes was explained by leaning intermolecular repulsion caused by the pre-tilt...

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