نتایج جستجو برای: river bank

تعداد نتایج: 145536  

2004
Russell Albright James A. Cox Kevin Daly

Applying category labels to textual documents can be useful for 1) Search Indexing, 2) Document Filtering, and 3) Summarization. Many different algorithms have been proposed for applying category labels to text documents. We compare and contrast different approaches to text mining using Enterprise Miner for Text. INTRODUCTION The automatic classification of documents into categories is an incre...

Kamali , A., Najjar Lashgari , S., Rezvni Gilkolaei , S., Soltani , M.,

In this study the genetic diversity of wild Caspian trout (Salmo trutta caspius) in the Sardabroud and Astara Rivers was evaluated using D- Loop region sequencing. For this purpose, 35 specimens of adult Caspian brown trout were collected from these rivers in the Mazandarn and Gilan Provinces in fall and winter 2011. Approximately 3-5 g of soft and fresh fin tissue was isolated and fixed in eth...

2018

Whole-watershed accounting assesses all surface and groundwater flows and storage over a large area. The idea is to account for all the major sources of water at once, rather than focusing on only a portion of them, such as what’s stored in surface water reservoirs. This work can reveal how joint management of surface and groundwater flows and storage could increase the overall amount of water ...

2012
S. N. Das Samir K. Das J. N. Kariya

Simulations of barge-tow movement in the sub-critical range along the Illinois River near Kampsville are performed to determine the return flow (RF) characteristics for upstream and downstream bound barge-tows. Simulations are carried out using the OpenFOAM® based CFD software for six barge-tow configurations considering two-dimensional shallow water equation. The RF velocities are simulated fo...

2013
Tosson A. Morsy Nahla M. Shoukry

The Egyptian Government plan to move in 25 years from an inhabited area of 6-25% of the total Nile land area to a larger one to compensate the huge increase of Egyptian populations. The decision was recently made to begin a development project at Toshka, on the western bank of the River Nile, Upper Egypt. Toshka depression is more or less close to Wadi Halfa of Sudan. Therefore, it was necessar...

Journal: :Environmental monitoring and assessment 2010
Christian F Lenhart Kenneth N Brooks Daniel Heneley Joseph A Magner

The Minnesota River Basin (MRB), situated in the prairie pothole region of the Upper Midwest, contributes excessive sediment and nutrient loads to the Upper Mississippi River. Over 330 stream channels in the MRB are listed as impaired by the Minnesota Pollution Control Agency, with turbidity levels exceeding water quality standards in much of the basin. Addressing turbidity impairment requires ...

2008
S. J. BIRKINSHAW J. C. BATHURST

The SHETRAN physically based, spatially distributed model is used to investigate the scaling relationship linking specific sediment yield to river basin area, for two contrasting topographies of upland and more homogeneous terrain and as a function of sediment source, land use and rainfall distribution. Modelling enables the effects of the controls to be examined on a systematic basis, while av...

Journal: :River Research and Applications 2023

The distinction between a “stream” and “river” is imprecise vague despite the popular usage of terms across disciplines for describing flowing waterbodies. Based on an analysis named waterbodies in continental United States, we suggest bank-to-bank channel width 15 m as working threshold defining smaller “streams” from larger “rivers.”

2015
Jonathan D. Phillips

River science and management often require a design or reference discharge. The common (and sometimes unavoidable) use of such discharges may, however, obscure the fact that the magnitude and frequency of critical flows can differ due to various hydrological, geomorphological, and ecological criteria. Threshold stages and discharges were identified for six lower Brazos River, Texas gaging stati...

2004
A. O. I. Gabriel

The Niger Delta is located in Southern Nigeria and is Africa’s largest delta, covering about 70,000 square kilometers, and with about one-third of it made up of wetlands, and the third largest world mangrove forests. The Niger Delta is unique in Nigeria because it is the home of Nigeria’s oil industry, with its attendant environmental hazards such as water, land, air pollution, etc. Human activ...

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