نتایج جستجو برای: including dredging reservoirs by traditional methods

تعداد نتایج: 8145675  

Journal: :PloS one 2015
Rebecca Fisher Clair Stark Peter Ridd Ross Jones

Dredging poses a potential risk to tropical ecosystems, especially in turbidity-sensitive environments such as coral reefs, filter feeding communities and seagrasses. There is little detailed observational time-series data on the spatial effects of dredging on turbidity and light and defining likely footprints is a fundamental task for impact prediction, the EIA process, and for designing monit...

In thin-layered reservoirs, drilling engineers face tough challenges—planning their drilling programs to follow the most productive reservoir layers while avoiding nearby water, gas or high-pressure zones. The rewards for a successful drilling strategy are clear—increased oil production and reduced water cut. In an oil field in the Persian Gulf, for example, oil production was increased four- t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات و علوم انسانی 1392

language learning courseware has been receiving growing attention by english educators since its advent. a variety of softwares have been designed by software designers and resorted to by language educators to supplement language textbooks. this experimental study investigated how the application of computerized version of language textbooks and the reception of the entire course through comput...

2000
Aris Spanos

The primary objective of this paper is to revisit a number of empirical modeling activities which are often characterized as data mining, in an attempt to distinguish between the problematic and the non-problematic cases. The key for this distinction is provided by the notion of severity proposed by Mayo (1996). It is argued that many unwarranted data mining activities often arise because of in...

Journal: :Case studies in chemical and environmental engineering 2023

This review summarizes current knowledge on sediment dredging to control eutrophication. Emphasis has been given the effectiveness and environmental impacts of dredging, release nutrients from sediment, response cyanobacterial bloom after dredging. Dredging is an effective method, although its mainly dependent external load. method can improve lake conditions by reducing TP, TN, Chl-a, P-flux, ...

Journal: :Journal of Hydraulic Engineering 2021

AbstractThe buildup of sediment deposits in reservoirs is a long-standing problem with serious consequences on the reservoirs’ functionality and ecology their river systems. In last two ...

Journal: :Water 2023

Reservoirs are a crucial part of the human water supply system. The effectiveness and service life reservoir is decided mainly by its storage capacity, as such, preventing capacity loss high interest worldwide. Due to climate change in recent years, precipitation types have changed, heavy rainfall events become more severe frequent. Rainfall causes soil erosion slope lands transports large amou...

2006
Robert Mueller

Currently emphasis on accurate and timely collection of fisheries data generates a need for investigation into advanced techniques in bathymetry, including recent refinements in Geographical Information Science (GIS) and Global Positioning Systems (GPS). The study area for this project was the east basin of Lake Winona, a small Mississippi River floodplain lake in Winona, Minnesota USA. Lake Wi...

2003
B. E. Dieter D. A. Wion R. A. McConnaughey

This document reviews the results of a workshop on scallop biology and the effects of scallop dredging on benthic communities. The workshop was held in Kodiak, Alaska, during 10-12 June 1999. A review of the history of the Alaskan weathervane scallop fishery was presented. Other speakers presented papers on scallop biology and fisheries in other cold-water areas. Topics of the papers included p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1371

we describe here a suitable approach for the synthesis of n-unsubstituted monocyclic b-lactams under mild reaction conditions by the annelation of imines with substituted acetylchlorides. in this method the reaily available phtalimidoacetyl chloride were allowed to react with - dibenzylideneiminotoluene (hydrobenzamide) in the presence of an equimolar amount of triethylamine in refluxing toluen...

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