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 86 for “"structural modeling"”.
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Structural modeling of dynamic polymer networks
Polymer network based gels are an important class of materials with a wide range of applications. Dynamic polymer networks, which crosslink via the formation of reversible bonds, in particular have great potential as stimuli responsive, mechanically tunable, and self-healing materials. Many …
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Investigation of a proposed achievement model: Using LISREL structural modeling
The purpose of the present study was to examine the causal effects of selected variables on learning performance. Specifically, this study investigated the relative importance of two types of time variables, that is, homework time and the ratio of time spent in learning (TSL) to time needed for …
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Smoking, ADHD, and Problematic Video Game Use: A Structural Modeling Approach
… and frequency of play simultaneously using a structural modeling approach. Secondary data analysis was conducted on 2,801 video game users (Mage = 22.43 years, SDage = 4.7; 93% male) who completed an online survey comprising measures of PVGU, ADHD symptomatology, smoking behavior, and hours of …
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Structural modeling and hierarchical control of large-scale electric power systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Refined structural modeling for progressive damage and fatigue analysis of composite structures
L'abstract è presente nell'allegato / the abstract is in the attachment
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Multi-Fidelity Structural Modeling For Set Based Design of Advanced Marine Vehicles
… Advanced Marine Vehicle Structural (AMVS) module (that can be integrated into a larger framework of marine vehicle analysis modules) enables stakeholders, as a group, to complete structurally feasible ship designs using the Set-Based Design (SBD) method. The SBD method …
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Low-achieving beginning readers: Early identification, and structural modeling of remedial reading effects
Early identification of first-grade and second-grade remedial reading students and the effects of remedial reading in early elementary grades were respectively investigated in three studies. These three studies used the database established by Meyer, Wardrop, and Hastings (1989) for a longitudinal …
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Fluid and structural modeling of the disease-free and atherosclerotic human carotid bifurcation
Cardiovascular disease is the leading cause of death in the United States. It claims more lives each year than the next 7 leading causes of death combined. Atherosclerosis is a major cause of cardiovascular disease and is an inflammatory process characterized by intimal thickening of arteries and …
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Structural Modeling and Optimization of Aircraft Wings having Curvilinear Spars and Ribs (SpaRibs)
The aviation industry is growing at a steady rate but presently, the industry is highly dependent on fossil fuel. As the world is running out of fossil fuels and the wide-spread acceptance of climate change due to carbon emissions, both the governments and industry are spending a significant amount …
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Preparation, Evaluation and Structural Modeling of Carbon-Based Adsorbents Used on Natural Gas Vehicles
… a high volumetric methane storage capacity. Modeling of nitrogen and methane adsorption onto a porous carbon is also conducted to optimize its pore structure and maximize its methane storage capacity. A novel analytical 3-D model is developed to calculate the pore size distribution for porous …
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Measurement of vortex-induced oscillations of marine cables using feedback with explicit structural modeling
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1996.
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The Antecedents and Consequences of Body Image Dissatisfaction: A Structural Modeling Analysis and a Controlled Laboratory Task
<p>Recent covariance structural equation modeling investigations have begun to examine factors thought to play a role in body image dissatisfaction and eating disturbance (Thompson et al., 1999). The current investigation extended this line of research using structural equation modeling to examine …
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Evaluating Adherence and Health Outcomes among Patients on Concomitant Diabetes, Hypertension, & Hyperlipidemia Treatments Using Marginal Structural Modeling
… with each adherence group. Lastly, a marginal structural model controlling for baseline covariates and time-varying confounders affected by prior adherence was conducted to evaluate the association. Results: For aim 1 the final patient cohort was comprised of 7,847 patients. Of these 68.05% of …
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Multiscale Integration of Empirical Geologic Observations with Quantitative Structural Modeling to Constrain Late Cretaceous to Eocene Paleostress Environments on the Colorado Plateau
… also permits geologists to better understand structural evolution. This dissertation focuses on interpreting and modeling crustal stress conditions from outcrop to regional scale associated with late Cretaceous to early Eocene deformation across the Colorado Plateau.The first part of this …
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Understanding ligand binding, selectivity and functions on the G protein-coupled receptors: A molecular modeling approach
… different projects with varied objectives – i) structural modeling of human C-C chemokine receptor type 5 (CCR5) and assessment of the ligand binding pocket of the receptor, ii) assessment of the selectivity profile of naltrexone derivatives on the three opioid receptors (μ-opioid, κ-opioid, …
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Hierarchical material models with microstructure for nonlinear analysis of progressive damage in laminated composite structures
This study presents new comprehensive nonlinear structural modeling approaches using hierarchical 3D micromechanical models for the analysis of progressive damage in laminated structures. Each approach is generally a synthesis of three components: a nonlinear material model for the matrix behavior; …
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Geração automática de dados para projeto e análise de plataformas “offshore”
… to design and analysis of offshore platforms. Structural modeling includes the jacket, main and skirt piles, deck legs and conductor pipes. Platform topology specification is given by general parameters and typical bracing patterns, defined by catalogued superelements. The implemented …
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