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 92 for “"Bleed"”.
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Oral anticoagulation treatment in atrial fibrillation - To bleed or not to bleed, that is the question
… reduces the risk of both thrombosis and bleeding. The time in therapeutic range (TTR) has been validated as a quality indicator of the anticoagulation treatment given, correlating inversely to complication frequencies. The Swedish national quality registry for atrial fibrillation and …
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The Design of Aspirated Compressor Bleed
Compressor bleed refers to the removal of flow from part way through the compressor for use in turbine cooling and other operational applications. Typical bleed systems in Industrial Gas Turbines comprise of an annular slot in the compressor casing, leading to external cavities. Aspiration refers …
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The Influence of Finite Bleed Velocities on The Effectiveness of Base Bleed in The Two-Dimensional Supersonic Base Pressure Problem
Made available in DSpace on 2014-12-05T19:15:54Z (GMT). No. of bitstreams: 1 0020898.pdf: 2450533 bytes, checksum: 9229436e35d4ba0a65ae00cc108838fa (MD5) Previous issue date: 1957
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Feed and bleed in pressurized water reactors analyzed under uncertainty
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1984.
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Seattle, Rhetorical Velocity, Identity Shift, Transnational Politics, and Materiality: Watching Rhetoric Bleed
… Politics, and Materiality: Watching Rhetoric Bleed</i> examines how the writings of Zapatista spokesperson Subcomandante Marcos shaped the philosophical underpinnings of the overall 1999 WTO protests, and more specifically, the philosophical underpinnings <i>and</i> the physical experience of …
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Experimental evaluation of asymmetric bleed actuation for rotating stall and surge control
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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An experimental investigation of the effects of base bleed in axisymmetric supersonic flow
Base bleed is a technique wherein a small quantity of fluid is injected into the base region of a projectile to reduce the base drag. The effects of base bleed on the near-wake flowfield of a cylindrical afterbody in a Mach 2.5 flow have been investigated in the present study. This experimental …
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A Method to Control Turbofan Engine Starting by Varying Compressor Surge Valve Bleed
… during engine start by varying the surge valve bleed. Varying the surge valve bleed was also shown to reduce compressor and fan required torque. A new method of turbofan engine component characteristic map extrapolation was developed. This novel method uses incompressible similarity laws, but …
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A methodology for capturing the impacts of bleed flow extraction on compressor performance and operability in engine conceptual design
… than ever before. One of these variables, bleed flow extraction, or simply bleed, plays an especially greater role; due to the approach engine designers are taking to combat the current state of fuel efficiency. For this reason, this research examined the current state of bleed handling …
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Experimental and numerical study of the bleed effect on the propagation of strong plane and converging cylindrical shock waves
… study was conducted to determine the effect of bleeding on the propagation of plane and converging cylindrical shock waves. A fully 3-D Finite Element code was written for simulating inviscid unsteady flow in various cases of shock tube geometry. The scheme used was implicit time-marching with …
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On Heat Transfer Within and Across Nearly Circular Cavities Including the Effects of Variable Wall Temperature and Mass Bleed
Made available in DSpace on 2014-12-09T17:13:41Z (GMT). No. of bitstreams: 1 6801707.pdf: 2812853 bytes, checksum: e2b266ef00661c3c52cf00def77186eb (MD5) Previous issue date: 1967
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A day to bleed: exploring the effects of Zambia's Mother's Day policy on the representation of women in the financial sector
This study examined how Zambia's menstruation leave policy, locally referred to as Mother's Day, influences the recruitment and retention of women in the financial and insurance sectors. As the only African nation to formalise menstruation leave, Zambia provided a distinctive context to explore the …
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Dynamic characterization and active control of unstarts in a near-isentropic supersonic inlet
… active control. An active stabilization bleed system is introduced that recovers the disturbance-rejection capabilities required of modem inlets. The bleed system requires 4% steady state bleed and up to 6% additional unsteady bleed for active stabilization. Two separate physical …
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Upper gastrointestinal bleed: a comparative outcomes study of pre and post implementation of management guidelines in the acute care surgery unit, Groote Schuur Hospital
Background: Upper gastrointestinal bleeding (UGIT) is a common presentation to hospital and can result in a significant morbidity, mortality and hospital costs. Consensus guidelines are present from various international expert bodies regarding the management of these patients and compliance with …
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Ram-jet combustion based on shock/flame interaction
… an axisymmetric fuel injector. Both peripheral bleed and axial bleed of hydrogen fuel have been examined and the effect of shock compression on the resulting flame has been determined. In the axial bleed case nitrogen and hydrogen bleed without combustion has also been examined. The effect of …
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Simulation of spike stall inception in a radial vanted diffuser
In turbocharger application bleed air at impeller exit is typically used to seal bearing compartments and to balance axial thrust in the rotor. It was previously shown that this bleed air can have a significant impact on both compressor performance and stability. Experiments suggest that spike …
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Complications to peptic ulcer and peptic ulcer surgery
… prescription rates of drugs with ulcerogenic and bleeding promoting side-effects are increasing. There is diverting reports of hospitalizations of peptic ulcer bleeding (PUB). The aim of this thesis was to (I) investigate if bile diversion could prevent the malignant transformation in the gastric …
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Measurements of Flow in Boundary Layer Ingesting Serpentine Inlets
… to the flow in BLI serpentine inlet systems. A bleed ow control system was tested that utilized no more than 2% of the total inlet ow. Two bleed slots were employed, one near the first bend of the S-duct and one near second. The bleed system successfully reduced inlet distortions by as much as …
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BECOMING INFINITE: A BAKHTINIAN CONSIDERATION OF DAVID FOSTER WALLACE’S INFINITE JEST
… grotesque stylistic devices: narrative bleed in which the seemingly neutral narrative voice begins to reflect particular character discourses and character-to-character voice bleed in which dialogic conflict between characters is dramatically rendered within the novel.</p>
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