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 41 for “"GDL"”.
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Valdžia ir erdvė: Lietuvos Didžiosios Kunigaikštystės teritorializacijos procesas XIV–XVI a /
… process of the Grand Duchy of Lithuania (GDL further) in the 14th–16th centuries. For sake the completeness of the research, thecontent of concepts concerning territorial units formed from the 13th to the 16th century in the GDL and the concepts of sovereign’s domain, relationship between …
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The Effectiveness of Graduated Driver Licensing in the United States
This thesis has evaluated the effectiveness of GDL programs both in New Jersey and across the United States using several metrics. The New Jersey GDL program was analyzed because it is considered one of the most stringent programs in the country. It was found that GDL indeed reduces the per capita …
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Investigation of Water Transport Parameters and Processes in the Gas Diffusion Layer of PEM Fuel Cells
… characteristics of the gas diffusion layer (GDL) of proton exchange membrane fuel cells (PEMFCs). Additionally, experimental fixtures and procedures for the determination of the constitutive relationships are presented. The water transport relationships are incorporated into analytical models …
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A comprehensive fractal approach in determination of the effective thermal conductivity of gas diffusion layers in polymer electrolyte membrane fuel cells
… thermal conductivity of gas diffusion layers (GDL) used in polymer electrolyte membrane fuel cells (PEMFC‟s). This is one of the factors affecting the durability of a fuel cell and need to get a solution to minimize costs and optimize the use of electrodes and cells. The main objectives of this …
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Water management strategies for polymer electrolyte fuel cells (PEFCs) employing microchannel flowfields
… the MEA. Four different gas diffusion layer (GDL) cases were tested in a single cell environment at four different cathode flowrates and stoichiometric ratios. The cases consisted of a carbon GDL and three variants of a uniform structured metal GDL. The three metal GDL designs varied in terms …
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Lietuvos Didžiosios Kunigaikštystės katalikiškoji hagiografija: recepcija, sklaida ir šventųjų kulto bruožai XIV a. pabaigoje – XVII a. pradžioje /
… hagiographic literature which circulated in the GDL and highlight its constituent parts, thus exhibiting its reception and dissemination as well as the peculiarities of the saints’ cult in the GDL in the period from the late 14th to the early 17th century. This study is the first attempt at …
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Catholic Hagiography of the Grand Duchy of Lithuania: Reception, Dissemination and Elements of the Saints’ Cult in the Late 14th - Early 17th Century /
… hagiographic literature which circulated in the GDL and highlight its constituent parts, thus exhibiting its reception and dissemination as well as the peculiarities of the saints’ cult in the GDL in the period from the late 14th to the early 17th century. This study is the first attempt at …
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Porous titanium felts as alternative metal gas diffusion layers for low temperature PEM fuel cells
… of the PEMFC is the gas diffusion layer (GDL) which facilitates reactant transport and water management within the cell. The GDL is conventionally carbon-based which makes it susceptible to degradation during operation within the oxidative environment of the PEMFC. This experimental study …
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Phylogeny Inference in the Presence of Incomplete Lineage Sorting, Gene Duplication and Loss and Hybridization
… sorting (ILS), gene duplication and loss (GDL), and hybridization, all of which can give rise to gene trees whose topologies disagree with each other as well as with that of the species phylogeny. Species phylogeny inference in the post-genomic era, also known as phylogenomic inference, …
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Graph embeddings for deep learning in general game playing
… a game written in a Game Description Language (GDL) and then infer a proper strategy for playing that game. Typically this includes learning a value function for evaluating the merit of game states, for example, by using a neural network. In this work we investigate whether more effective neural …
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Stability of microbial transglutaminase and its reactions with individual caseins under atmospheric and high pressure
… concentrations of glucono-delta-lactone (Gdl) to casein solutions (5% w/v) at 40°C was analysed. Gels firmness was accessed by oscillation rheometry and gel permeation chromatography. Oscillation rheometry data showed that the time of gelation decreased with an increasing Gdl concentration …
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Measurement Error Adjustment in the Offset Variable of a Poisson Model
… among teenagers. The Graduated Driver Licensing (GDL) program is one effective policy for reducing the number of teenage car crashes. Our study focuses on how the GDL program adopted by the state of Michigan in 1997 took effect. We use Poisson regression with spatially dependent random effects to …
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Carbon Dioxide Capture Conversion via Calgary Framework CALF-20: Catalytic Process design and Optimization
… C2H4. Carbon fiber sheet Gas-Diffusion Layer (GDL) was used as a platform to conduct the current and support the MOF and Cu catalyst for CO? capture and electrochemical reduction reaction, respectively. One side of the GDL was coated with Zinc-based MOF. The MOF layer served as a CO? …
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Worker rights protection in Mexico's Silicon Valley : confronting low-road labor practices in high-tech manufacturing through antagonistic collaboration
… Centro de Refleccidn y Accidn Laboral (CEREAL-GDL), which has been working to improve working conditions in the electronics manufacturing cluster known as Mexico's Silicon Valley located in Guadalajara for over a decade. Specifically, this thesis analyzes how the organization has evolved its …
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The impact of alcohol-related risk-taking behaviour on younger driver deaths in the Western Cape Province: a retrospective cross-sectional study
… in the province. Graduated driver license (GDL) programmes provide a supervised learning opportunity for younger drivers to gain driving skills and include a zero-alcohol tolerance restriction. The usefulness of implementing a GDL programme in the country needs to be explored. It is …
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Examining the Effect of Driving Experience on Teenage Driving Ability with Secondary Tasks
… driving ability. This research supports current GDL cell phone restrictions. A drivers' education lesson plan framework was developed to address these differences. Future research should focus on further refining GDL legislation to address the cognitive differences between teenage and experienced …
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The modification of fuel cell-based breath alcohol sensor materials to improve water retention of sensing performance
… the catalyst layer and gas diffusion layer (GDL) were investigated. For the catalyst layer, platinum black and 20% platinum supported on carbon achieved similar results. The choice of catalyst was less of an issue than the choice of GDL. It was found that using carbon fiber paper GDLs lead to …
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Development and Characterization of Direct Formic Acid Fuel Cell for Potable Power Applications
… of water and fuel in the membrane and GDL's of operating DFAFC. MRI images taken with a 14.7 T imaging system, show that the fuel distribution with the operating fuel cell is non-uniform. Generally, there is more fuel in the bottom of the cell, while the upper part of the flowfield is …
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Computational fluid dynamics modelling of PEM fuel cells to investigate transport limitations.
… performance for a value lower than 10-11 m2. GDL porosity is one of the major design parameters which have significant influence on limiting current density, hence on cell performance. Land area width of PEM fuel cell shows influence on cell performance. Low membrane thickness provides higher …
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Deep Learning for Brain Structural Connectivity Analysis: From Tissue Segmentation to Tractogram Alignment
… information. Recently, geometric deep learning (GDL) models have shown promising results in handling non-grid data like tractograms, offering new possibilities for WM structure alignment. The third main contribution of this thesis is implementing a GDL model for tractogram alignment through a …
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