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 506 for “"Experimental methods"”.
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Evaluation of alternative discrete-event simulation experimental methods
… lines. The thesis addressed the selection of methods for introducing randomness, setting the length of individual simulation runs, and determining the conditions for starting measurements". Received wisdom" in these aspects of simulation experimentation was not accepted.The research made use …
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Determination of stress concentration factors using experimental methods
Several experimental methods are examined for stress concentration factor determination. Tests are performed on a chosen 2-D specimen using strain gages, brittle coating, brittle specimen failure, photoelasticity, and Moire interferometry. Results are compared to each other and to finite element …
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Learning novel vowel contrasts: experimental methods in classroom applications
This dissertation reports on perceptual training of tense-lax vowel contrasts in the context of an advanced-level ESL pronunciation class for Chinese and Korean international graduate students. The vowel contrasts were trained under four training paradigms designed to examine the effects of …
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Experimental methods of measuring energy dissipation in acoustic resonators
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Shock wave interaction with a fluid filled cylinder experimental methods
In the recent wars of Iraq and Afghanistan, many soldiers sustained bTBI (blast-induced traumatic brain injury). The blasts are created by extensive use of improvised explosive devices (IED's). Whether pure blast-shock waves cause TBI or what is the mechanism of injury are not fully known. Research …
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Computational and experimental methods for CRISPR-based saturation mutagenesis screens
… we focus on the development of computational and experimental methods for CRISPR-based saturation mutagenesis screens. First, we developed CRISPR screening uncharacterized region function (CRISPR-SURF), a deconvolution framework for the analysis of CRISPR saturation mutagenesis screens. Drawing …
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Integrated Experimental Methods and Machine Learning for Tire Wear Prediction
A major challenge in tire research, is tire wear modeling. There are too many factors affecting tire wear, and part of those factors are difficult to be accurately expressed in physics and math. The objective of this research is to develop a machine learning based rubber sample wear model, and find …
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The performance of Double Skin Façade window systems by experimental methods
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.
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Moisture conditions in rain exposed wood joints - Experimental methods and laboratory measurements
… climate (the wood moisture content) in joints. Methods for determination of microclimate, i.e. the duration of moisture on a wooden surface and the duration of water trapped in gaps between two boards, as well as a method for moisture content determinations close to surfaces and joints were …
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An examination of some experimental methods of comparing intensities of spectrum lines
Several methods of comparing intensities of spectrum lines are described, using photographic plates, photomultipliers and photo-resistive cells as the measuring instruments. The performance of each of these detectors was assessed by using them, in turn, to determine the intensity ratios of the …
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Experimental methods by optical trapping for investigation of leukocyte cell rolling mechanics
… on the design and implementation of a range of experimental methods by optical trapping in order to investigate the mechanical behavior of the leukocyte cell membrane as it undergoes cell rolling. Membrane tethers extracted from the cell during rolling function to slow the cell down and to …
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Experimental methods to study plastic behavior of polymer glasses at large deformations
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1984.
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Evaluation of analytical and experimental methods to predict constrained layer damping behavior
… to design parameters, and evaluation of experimental loss factor estimation techniques. Model comparison for damping estimation and resonant frequency prediction was performed between finite element analysis (FEA) Ross, Kerwin, and Ungar theory (RKU), developed moment predicted loss …
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Contribution to kinematic and inertial analysis of piles by analytical and experimental methods
… hand by means of both theoretical analyses and experimental investigations. Pile foundations in seismically prone areas are subjected to both direct loading, such as axial and lateral forces imposed at their heads, resulting from a phenomenon known as inertial interaction, and indirect loading …
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Numerical and experimental methods for seismic risk assessment of civil and industrial structures
… to predict the leakage limit state, based on experimental data. A significant effort is also devoted to identification of a leakage limit state for piping elbows, and the level of hoop plastic strain was found to be an indicator. The second part of the thesis describes an innovative …
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Modeling multiphase solid transport velocity in long subsea tiebacks: numerical and experimental methods.
… average error margin of 12% when compared with experimental data. The improved models were validated using previously-reported experimental data and were shown to have better predictions when compared with existing models in the public domain. These models have the potential to solve the …
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Numerical and experimental methods for determining the strength and motion of trailing vortices
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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Advances in experimental methods to probe surface relief grating formation mechanism in photosensitive materials
When azobenzene-modified photosensitive polymer films are irradiated with light interference patterns, topographic variations in the film develop that follow the electric field vector distribution resulting in the formation of surface relief grating (SRG). The exact correspondence of the electric …
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Analytical and Experimental Methods for the Characterization of Field Propagation in Non-Standard Conditions
The electromagnetic propagation is totally and fully assessed in free space, in standard working conditions. However there exists peculiar propagation environments in which the propagation has not been studied but in which it could be fully exploited in order to assess specic needs or to provide …
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