Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 145 for “"Weir"”.
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Surrogate-based optimization of a BioMEMs microfluidic weir
BioMEM microfluidic weirs enable biologists to study biological processes at the cell level. A novel substrate-affixed microfluidic array of weirs allows active sorting of cells via control electrodes. The ability of the weirs to retain cells hydrodynamically is vital to the functionality of the …
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Hydraulic control by a wide weir in a rotating fluid.
Thesis. 1975. M.S.--Massachusetts Institute of Technology. Dept. of Meteorology.
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Study of the Virginia V-notch weir-box culvert combination gaging station
A Virginia V-notch weir·box culvert combination gaging station is a discharge measuring device to record the runoff from small watersheds, usually less than two thousand acres in area. The station is composed of a prebuilt highway culvert, a one-foot thick triangular shaped weir placed between wing …
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"Old Cod": The Power of Storytelling in Conor McPherson's <em>The Weir</em>
… in Conor McPherson’s 1997 play <em>The Weir</em>. Drawing on postcolonial theory as well as the historical context of Ireland during the play’s release, I argue that <em>The Weir</em> is uniquely positioned at the intersection of traditional and modern values. Further, I assert that …
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The distribution of hydraulic energy in weir flow with relation to spillway design
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1932.
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The Mzingazi gauging weir and its effects on the fish and macrocrustacean communities of Lake Mzingazi
… water increased and led to the construction of a weir across the outlet of Lake Mzingazi. The first weir on this historically estuarine lake was built in 1955, after which it was raised several times to satisfy the increasing demand for water. Due to potential salt-water intrusion via groundwater …
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Effect of spillway-ogee location on flow uniformity and turbulence at the crest of an ogee weir
… for which the approach flow to the ogee weir is relatively shallow. Circular and elliptical shapes of abutments were used. These abutment forms, and the bathymetry of the reservoir approach to the spillway, cause the approach flow to the ogee weir to be non-uniformly distributed and …
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Assessing the influence of low head weirs and low head ‘on weir’ hydropower on the phytobenthic biofilm
… there has increased interest in low head ‘on weir’ hydro across the UK. This directly corresponds to carbon reduction targets, renewable energy targets and financial incentives directed at renewable energy generating schemes. Despite increased interests, current understandings of the aquatic …
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Eye for the Gap: Frenzy, Liberty, and the Nietszchean Chorus in Conor McPherson's The Weir and Shining City
<p>This study situates <em>The Weir</em> and <em>Shining City</em> by Conor McPherson as embodying elements of Dionysian aesthetics as elucidated by Friedrich Nietzsche. Working through the lenses of Samuel Beckett’s linguistic philosophy and the premium of theater as established by Nietzsche, …
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JEMEZ RIVER CASE STUDY: UTILIZING A FROUDE NUMBER SIMILITUDE PHYSICAL MODEL, 1-D MOBILE BED NUMERICAL MODEL, AND A 2-D FIXED BED NUMERICAL MODEL FOR WEIR DESIGN INSIGHT
… on the Jemez River in New Mexico, the Jemez Weir stops the upstream progression of stream degradation and supports healthy upstream riparian vegetation. Localized bed scour began to occur just downstream of the Jemez Weir following construction. The United States Army Corps of Engineers …
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Monitoring of storm sewer overflows
… designs (the stilling pond, the double high side weir and the double low side weir) and aims to institute a novel pollution monitoring methodology for combined sewer overflows. Four sites in the central Sheffield area were monitored for periods from 9 to 13 months (two high-side weirs, one …
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Estimating Flow Through Rock Weirs
Rock weirs are small dam-like structures composed of large loose rock commonly found in ecological engineering design. By appearing more natural than concrete structures, rock weirs are preferred for use as hydraulic control structures in river engineering, stormwater management, and constructed …
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Effectiveness of weirs on the New River in retarding rapid releases from Claytor Lake Dam at Big Falls
… limited, if not non-existent. The placement of weirs between the dam and dangerous sections would retard the flow—slowing the rise in water levels and decreasing velocities at predetermined dangerous sections. Big Falls, on the New River near McCoy, Virginia, is a popular recreation spot and …
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Flow patterns, performance and scale-up of distillation trays
… it crosses the tray from the inlet to the outlet weir could be affected by the mixing of liquid by the eddy, momentum and the weir shape in the axial or the transverse direction or both. Conventional U-shape profiles were developed when the operating conditions were such that the froth dispersion …
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The use of flow control devices to improve the flow pattern and throughput of sieve trays
… These are (a) the use of intermediate weirs to redirect liquid to the sides of the tray so as to remove slow moving/stagnant liquid and (b) the use of vapour-directing slots designed to use the vapour to cause liquid to be directed towards the outlet weir thus reducing the liquid …
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Characteristics of dividing and combining flows
… for the outflow through a rectangular lateral weir located in a circular open channel is derived. The theoretical weir discharge coefficient is expressed as a function of the parameters relating the geometry of the weir and the channel, and a velocity parameter that is a function of the …
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