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 96 for “"Model testing"”.
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A numerical simulation of multiple-shaker model testing
… for the simulation of structural dynamic modal testing by the method of steady-state sinusoidal excitation by discrete shakers. An analytical method commonly known as Asher's Method was employed to optimize the shaker forceamplitude distributions for the purpose of isolating individual modes of …
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Geotechnical centrifuge model testing for pile foundation re-use
… described in this thesis, using centrifuge model testing, describes how the existing pile foundations in overconsolidated clay are likely to behave when their loading conditions are changed by unloading caused by demolition and subsequent reloading. This is done with the view to re-use the …
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The biobehavioral family model: Testing eudaimonic well-being as an additional mediator
… mediating variable in the Biobehavioral Family Model (BBFM; Wood, 1993). Data from a nationally representative sample of adults (N = 1255, Midlife in the United States II; Ryff et al., 2012) was used to test whether family emotional climate was associated with eudaimonic well-being (i.e., …
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A coning motion apparatus for hydrodynamic model testing in a non-planar cross-flow
Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1989 and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1989.
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Help seeking and the theory of planned behavior in college students : experiment and model testing
… PHS context. In addition, the utility of the TPB model for explaining PHS in college students was examined. Based on model fit statistics the TPB adequately explained PHS in college students, but only after modifications were made to the measurement model.
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Implementation of 3DPTV for turbulence analysis and subgrid-scale stress model testing of a backward-facing step flow
… field with many new applications and models being introduced on a regular basis. The active nature of this field establishes the need for high-resolution, 3-dimensional experimental data for assessment and development of Subgrid-Scale (SGS) Models. An experimental technique well-suited …
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Model testing and computational analysis of a high speed planing hull with cambered planing surface and surface piercing hydrofoils
… planing hull form that was based on the Model Variant 5631 developed at the US Navy's David Taylor Model Basin [7] [3] [5]. This model was a variant of the parent hull 5628. The 5631 variant was a model of the 47 foot Motor Lifeboat of the US Coast Guard, which was a hard chine, deep-vee …
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Inlet model testing facility preparation, injector calibration and preliminary testing of two two-dimensional inlet models at high incidence angles to study internal flow separation
… incidence angles for two two-dimensional inlet models is presented. A description of the inlet testing facility includes the injector (which serves to drive the air through the inlet model), its control system, and the Virginia Tech 6-foot subsonic wind tunnel. The geometry of the two inlet …
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Component-based modeling for Android application testing
… its apps have motivated the need for automated model-based testing techniques on Android plat- form. Prior researches have primarily focused on the GUI-based model of Android apps. GUI-based model only includes Activity targeting graphical user interfaces. It neglects other components such as …
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Development and evaluation of an instrumentation system for high acceleration centrifuge testing of an artificial rock material
… system for high acceleration centrifuge testing of an artificial rock material.</p> <p>A stress analysis of the centrifuge rotor was performed to ensure its safe operation. The centrifuge was found to be safe for operation to a maximum of 1000 rpm for a payload of 15 pounds (6.82 kg).</p> …
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Mathematical modelling studies of human locomotion
… theoretical considerations in respect of model building, model testing and practical work concerned with the collection of pertinent data.
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Design and control of an autonomous destroyer model
Model testing to date has not incorporated the simulation of realistic propulsion in the testing of closed loop control of ships. The development of a DDG-51 hull model for these tests is described, and the preliminary data from the sensor suite to be used for feedback control is analyzed. Based on …
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Pre-negotiation strategy development in asymmetric bargaining situations: An investigation of new buys in the business-to-business marketing arena
… Purchasing Management, for data collection and model testing. A second facet of the research explores whether students can be used for applied business research questions of this type and generate equally externally valid results. Scenarios similar to those administered to the purchasing …
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Examining the Relationship between Bicultural Stress and Psychological Well-being among Korean Adolescents in Singapore: A Mixed Methods Study
… effect of ethnic identity. The primary model testing showed that ethnic identity did not buffer the impact of bicultural stress on psychological well-being, rather enhanced the impact of stress on depression for Korean adolescents who reported having a stronger ethnic identity. The …
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Wedged Vortex Generator Applications for Marine Vessels
… design for flow manipulation. Comparative testing of three wedge shaped VG sizes at 1.3 m/s revealed the most effective configuration, which was subsequently evaluated across speeds ranging from 1.0 m/s to 1.6 m/s. The results showed a viscous drag reduction of 7.9% at 1.4 m/s. These …
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Velocity characteristics in the wake of an oscillating cylinder
… 2000 experimental runs conduced at the MIT Ship Model Testing Tank. A rake of constant temperature anemometers is employed to study the spanwise velocity correlation and the vertical velocity profile downstream of a vibrating cylinder. Experiments involve either free vibration implemented through …
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Mathematical modelling of applied heat transfer in temperature sensitive packaging systems. Design, development and validation of a heat transfer model using lumped system approach that predicts the performance of cold chain packaging systems under dynamically changing environmental thermal conditions.
… the development of a transient spreadsheet based model using lumped system approach that predicts the performance of packaging systems under a wide range of internal configurations and dynamically changing environmental thermal conditions. Experimental tests are conducted with the aim of …
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