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 83 for “"splitter"”.
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Analysis and design of transonic cascades with splitter vanes
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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On the passive oscillations of a splitter plate in stratified turbulence
Wind tunnel experiments were conducted to understand the turbulence-induced motions of a rigid at plate able to rotate at its quarter span. Dominant coherent motions that varied along the vertical direction were imposed on the incoming flow using a variety of tapered cylinders. Emphasis is placed …
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An Efficient Data Structure for Implementing Splitter Hyperobjects in Task-Parallel Systems
… split-tree data structure to support splitter hyperobjects for task-parallel systems. Splitters can mitigate races on shared, nonlocal state, where parallel nested tasks make independent local modifications without affecting shared history. The data structure is inspired by …
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Running to win: The utility of the ticket-splitter theory in presidential elections
Theory suggests that ticket-splitters often are the balance of power in elections, and constitute at least one-fourth of the American electorate. Ticket-splitting is not, however, motivated by party identification. Instead the voter's evaluation of the candidate, pertinent issues, and party …
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Control of supersonic axisymmetric base flows using passive splitter plates and pulsed plasma actuators
… control investigation consisted of inserting splitter plates into the recirculation region. The active control technique utilized energy deposition from multiple electric-arc plasma discharges placed around the base. The flow-control authority of both methodologies was evaluated with …
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A design study of radial inflow turbines with splitter blades in three-dimensional flow
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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Opto-VLSI-based adaptive optical power splitter/combiner for next generation dynamic optical telecommunication networks
The demand for optical power splitters is growing globally, due to the rapid deployment of fibre-to-the-premises, optical metropolitan area network (MAN), and active optical cables for TV/Video signal transport. Optical splitters play an important role in passive optical network (PON) technology by …
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Compact Trench-Based Silicon-on-Insulator Rib Waveguide 90-Degree and 105-Degree Bend and Splitter Design
… based passive optical components, bend and splitter, respectively. Compact 90 degree and 105 degree bend and splitter are designed with high index-contrast rib waveguide at wavelength 1550nm and serve as building blocks of splitting network in micro-cantilever biosensing application. The …
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50%-50% Beam Splitters Using Transparent Substrates Coated by Single- or Double-Layer Quarter-Wave Thin Films
… surface. Sytematic procedures to design beam splitters which can produce such output light beams are described in this thesis. Two designs that are of particular interest are prismatic substrates coated by a single layer and a double layer of thin films. Specific examples of each beam splitter …
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DEVELOPMENT OF AN AUTOMATION AND CONTROL SYSTEM FOR A COAL SPIRAL
… process variable for coal spirals, i.e., product splitter position, continue to be done manually. Since spiral feed in a plant tends to fluctuate on a regular basis, timely manual adjustment of splitter position in tens or hundreds of spirals operating in a plant is nearly impossible. As a result, …
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Experimental and Mathematical Modeling of the Interaction of a Perturbed Free Shear Layer With a Flat Plate
… plate are nearly in phase with the wave at the splitter plate separation edge. This causes the frequency of the oscillations to gradually decrease as the plate is moved downstream. This drop continues until a certain impingement length is reached where the oscillations can not sustain themselves …
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The effect of machine and material parameters on rare earth roller separation
… including input material concentration, splitter position and feed rate. Experimental design for the tests is presented. Separation performance appears to be dependent on splitter position, a subjective parameter determined by the characteristics of the machine. The separation process was …
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Exploring Passive Flow Control Techniques Applied to a Supersonic Multistream Rectangular Nozzle
… = 1.6) and bypass (M = 1.0) that merge behind a splitter plate and exit through a Single Expansion Ramp Nozzle (SERN) onto an aft-deck. Previous efforts for the nominal nozzle configuration have shown that an instability initiated at the splitter plate trailing edge (SPTE) influences the …
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Mobile array designs with ANSERLIN antennas and efficient, wide-band PEEC models for interconnect and power distribution network analysis
… around the ANSERLIN antenna element and a 3-dB splitter design. The size of the antenna elements was reduced over previous versions by introducing dielectric substrates. Additionally, new variations of the antenna were designed to influence radiation characteristics. To further reduce the number …
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Experimental and analytical modeling of the quasi-steady switching characteristics of a monostable fluid amplifier
… control and vent width, wall offsets, and splitter distance. For each dimensional configuration, effects of 1- and 3-nozzle loads are examined over Reynolds numbers (based on power supply nozzle exit width) of 2500 to 4000. The nominal design yields high switch pressures (> 20% of supply) …
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Intrachip clock signal distribution via si-based optical interconnect
… clock signal distribution. The conventional y-splitter showed significant optical loss and unequal power-splitting ratio, which becomes increasingly problematic as the number of levels of a H-tree network increases and can result in increased skew. We devised a novel extended offset splitter, …
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Speckle applications for volumetric imaging of biological dynamics
… introducing a passive optical element called z-splitter prism, through which images from multiple depths can be projected onto a single camera simultaneously. With the z-splitter, both multifocus LSCI and HiLo systems are advantageous in high speed recording as compared to conventional systems …
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Forced response of a centrifugal compressor stage due to the impeller-diffuser interaction
… unshrouded rotating impeller with both main and splitter blades. The forced response of two splitter blade modes are computed for a variety of structural boundary conditions and unsteady loadings to elicit the driving physical mechanisms. The findings indicate that the forced response is enhanced …
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Polarizing Optical Devices Based on Embedded One-Dimensional Subwavelength-Structured Photonic-Crystal Layers
… procedure for the design of a polarizing beam splitter (PBS) that uses a form-birefringent, subwavelength-structured, one-dimensional photonic-crystal layer (SWS 1-D PCL) embedded in a high-index cubical prism is presented. The PBS is based on index matching and total transmission for the p …
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The Diode Laser Source and the Spatial Light Modulator's Driver Electronics for Miniaturized Holographic 3D Imaging
… of the SLM and the distortion due to the beam splitter on the structured output from the LIM are explained.
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