نتایج جستجو برای: hydrological engineering centre hec

تعداد نتایج: 383182  

Journal: :Water 2022

The objective of the study was to configure Hydrological Modeling System (HEC-HMS) in such a way that it could simulate all-important hydrological components (e.g., streamflow, soil moisture, snowmelt water, terrestrial water storage, baseflow, surface flow, and evapotranspiration) Three-River Headwater Region. However, problem we faced unsatisfactory simulations these components, except stream...

Journal: :Cell biology international 2014
Hojjat Naderi-Meshkin Kristin Andreas Maryam M Matin Michael Sittinger Hamid Reza Bidkhori Naghmeh Ahmadiankia Ahmad Reza Bahrami Jochen Ringe

Chitosan-beta glycerophosphate-hydroxyethyl cellulose (CH-GP-HEC) is a biocompatible and biodegradable scaffold exhibiting a sol-gel transition at 37°C. Chondrogenic factors or mesenchymal stem cells (MSCs) can be included in the CH-GP-HEC, and injected into the site of injury to fill the cartilage tissue defects with minimal invasion and pain. The possible impact of the injectable CH-GP-HEC on...

Journal: Desert 2016
Afshin Jahanshahi, Ali Afzali, Mohammad Golshan

Development of rural areas in rivers margins and flood plains, without understanding and attention to the dynamical and hydrological conditions and upstream areas of the rivers will cause to increase flood risk and loss of life and financial. Flood zoning has many applications, in floodplain management. For management of the three major branches of the Halilrood River, Rabor, Roodar and Javaran...

ژورنال: آبخیزداری ایران 2022

The most important problem in estimating floods is the lack of sufficient statistics and consequently the lack of evaluation of the appropriate amount of flow. One of the flood estimation methods in these basins is the use of hydrological modeling. In this study, Shahbahram river flood modeling was performed with Nazmkan hydrometric station located in Kohkiluyeh Boyer-Ahmad province with HEC-HM...

Journal: :Environmental Modelling and Software 2003
Shanker Kumar Sinnakaudan Aminuddin Ab. Ghani S. Ahmad Mohd. Sanusi Nor Azazi Zakaria

Geographic Information Systems (GIS) are an efficient and interactive spatial decision support tool for flood risk analysis. This paper describes the development of ArcView GIS extension — namely AVHEC-6.avx — to integrate the HEC-6 hydraulic model within GIS environment. The extension was written in an Avenue Script language and Dialog Designer with a series of ‘point and click’ options. It ha...

Journal: :Stochastic Environmental Research and Risk Assessment 2021

Flash floods cause great harm to people’s lives and property safety. Rainfall is one of the main causes flash in small watersheds. The uncertainty rainfall events results inconsistency between traditional single pattern actual process, which poses a challenge for early warning forecasting floods. To carry out effective flood forecasting, this paper proposes novel by coupling total peak intensit...

Journal: :Protein engineering 1999
P Stenlund L A Tibell

Human extracellular superoxide dismutase (hEC-SOD) is a secreted tetrameric protein involved in protection against oxygen free radicals. Since EC-SOD is too large a protein for structural determination by multi-dimensional NMR and attempts to crystallize the protein for X-ray structural determination have failed, the three-dimensional structure of hEC-SOD is unknown. By fusion protein technique...

Journal: :Geomatics, Natural Hazards and Risk 2022

With advancements in computational technology, data assimilation techniques, high-resolution remote sensing, and complex climate models, numerous precipitation products are available with different spatiotemporal resolutions; however, their evaluation, especially the Himalayan region, is unexplored. Therefore, this study attempts to assess four sources (gridded observation dataset, reanalysis, ...

Journal: :E3S web of conferences 2021

This work focused on the collection and preparation of data required for hydrological modelling Beht catchment area, which covers an area 4560 km 2 with a perimeter 414 km, by combining various spatial technologies, in particular geographical information systems (GIS), remote sensing, digital terrain models (DTM), order to prepare used flood forecasting. The methodology consists, at first, auto...

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