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.
Results
Showing 1 to 20 of 228 for “"Experimental method"”.
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An experimental method for structural intensity and source location
… research focused on implementing the experimental determination of the structural intensity and the force distribution function. Since the calculations are implemented in wavenumber domain by Fast Fourier Transform (FFT), signal processing techniques such as windowing and filtering are …
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The development of a systematic experimental method for damage identification
… thesis presents the development of a systematic experimental method to identify structural damage by the experimental techniques. Three carbon fabric squared composite p1ates were used as the research objects. Two of them with light crack damage that can be classified as fiber breaking and matrix …
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An experimental method for measuring dynamic pressures above a cavitating propeller
… plot animations and FFT analysis supported the experimental data and the experiment as a reusable apparatus for recording dynamic pressures to be used in cavitation computer models.
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An Experimental Method of Detection of Venus Thrombosis in the Lower Extremities of Dogs
… changes about the venous thrombosis by a thermal method.
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An experimental method for visualizing undrained shearing failure in a transparent soft clay surrogate
… significant disturbance of the soil sample or methods of shearing along a transparent surface. Additional existing methods involved seeding of the soil with various markers creating a non-homogenous soil mixture, adding potential sources for error. None of the previous attempts to characterize …
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Analysis of fountain effect for tiltrotor configuration using computational fluid simulation and experimental method
… it can be stated that the URANS-based CFD methodology can simulate the tiltrotor’s wing/rotor configuration performance for flight conditions of lower crosswind angles, ideally from 0° to 45° for this particular study. Performing flow visualizations for crosswind flight conditions of lower …
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Experimental method of analyzing stress intensity factors and singularity order in rocket motor geometry
… at right angles. By applying a refined optical method, the photoelastic data are converted into classical stress intensity factors resulting from the three dimensional stress state existing at the inner surface and compared with a numerical analysis to indicate the nearly uniform distribution of …
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An experimental method for teaching the writing of poetry in the eleventh and twelfth grades
Thesis (Ed.M)--Boston University
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Establishment of an experimental method for a grooved composite subjected to out-of-plane contact loading
A specimen and an experimental method to observe the behavior of a grooved composite subjected to out-of-plane contact loading is established and verified, and its response is examined. The specimen is designed so that the variability of stress-strain state is negligible across the width of the …
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Data Reduction Procedure for an Experimental Method of Measuring the Velocity-Coupled Response Function of Solid Propellants
… response function of solid-propellants from experimentally measured pressure data. The proposed velocity-coupled response function measurement apparatus consists of an end-burner combustor where the propellant sample is oscillated in a direction normal to the flow in the presence of a …
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An experimental method for the investigation of subsonic stall flutter in gas turbine engine fans and compressors
… fan and verified through sonic and photographic methods. The frequency components of the sonic output during flutter were determined using a real-time analyzer. This frequency analysis indicated a dominant peak within 7 percent of the theoretical torsional natural frequency of the blades. …
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An Experimental Method to Calculate Coefficient of Friction in Mecanum Wheel Rollers and Cost Analysis Using DFMA Techniques
<p>Mecanum wheel is a special kind of omni-directional wheel which is designed for robot vehicles. The purpose of this thesis is to work on geometry and working of Mecanum wheel rollers and to conduct experiments on these rollers to find its values of coefficient of friction in different …
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An experimental method to measure crystal growth rate in porous materials and quantity deformation developed during crystal growth
The aim of this thesis work is to develop a new experimental method to quantify dam-ages produced by salt crystallisation in porous building materials, a phenomenon long considered as one of the most important cause of deterioration problems, occurring in monuments exposed to a wide range of …
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Exploring the feasibility of a novel experimental method to study talent selection and decision making in high performance sport
… & Baker, 2012). This study aimed to pilot test a method for understanding what Canadian basketball coaches look for when deciding between athletes available for selection. Specifically, using blinded data, coaches and decision makers were asked to make talent predictions. Participants from various …
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Novel experimental method for the determination of the minimum agitation speed for solids suspension in flat-bottomed stirred tank reactors
… number of industrial operations. The most common experimental approach to measure N_{js} is that of Zwietering’s (Chem. Eng. Sci., 1958, 8, 244-253), consisting of visually inspecting the tank bottom and visually determining the impeller agitation speed at which the solids are observed to rest on …
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A Novel Experimental Method for Measuring Proactive and Reactive Responses to Threat and an Examination of Their Personality and Neural Correlates
<p>The goal of this dissertation is to characterize goal directed proactive behavioral responses to threat as well as reactive responses to threat exposure, and to identify the neural and personality correlates of individual differences in these responses. Three specific studies are reported …
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The Impact of Different Passive Roof Construction Types on Building Thermal Performance / Experimental Method for Optimizing the Thermal Performance of Building Enclosures
… Iraqi dwelling unit were constructed for the experimental research of the study. In this research, the roof was the only envelope parameter that changed among the STCs. Four types of roofing technologies, Exterior Reflective Cool Coating (ERCC), Radiant Barrier (RB), Interior Radiation Control …
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A Study to Determine the Effect on Student Achievement of Graphic Materials Integrated in a Fifth Grade Curriculum
… in the interpretation of graphic materials. The experimental method employing four control classes and four experimental classes was the research technique used.
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Characterization of Magic-angle Twisted Bilayer Graphene using Microwave Techniques
… qubits. This thesis presents a promising experimental method to characterize MATBG in the gigahertz-frequency regime, the operating regime of superconducting qubits. A hybrid on-chip DC-microwave circuit, which integrates a DC four-probe measurement and microwave resonator readout …
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