Digital Commons Network^™

Upheaval Buckling Of Offshore Pipelines In Homogeneous And Layered Soils, Porang Deljoui

Electronic Thesis and Dissertation Repository

Offshore oil and gas pipelines are commonly buried below the seabed to provide environmental stability and protection. Many of these pipelines are prone to upheaval buckling following burial. Soil failure mechanisms can extend to the surface (shallow) or remain localised within the soil body (deep); the exact conditions that cause this transition are currently unclear. In very weak soils, rock fill or sand berms are added to the surface of the completed trench after burial, to increase the required pull-out capacity. Despite a relatively large body of research existing in the literature, much confusion still exists as to the appropriate …

Testimonial Statements: The Death Of Dying Declarations? - People V. Clay, Sarah R. Gitomer

Touro Law Review

No abstract provided.

The Birth Of Radio In The American Sector (Rias)And Its Role During The Berlin Blockade, J. David Mecham

Theses and Dissertations

The ensuing chaos and power struggles between the East and West following the end of the Second World War in Germany set the stage for the creation of a unique radio station that would broadcast from behind the iron curtain for the duration of the cold war. RIAS, or Radio in the American Sector, would play a key role in the battle over ideology between the West and the Soviet Union. The story of RIAS' birth and development is a unique narrative of unintended consequences as the efforts of the Soviet Union to gain a monopoly over the airwaves of …

Laboratory Characterization And Theoretical Analysis Of Contaminant Mass Transfer, Xiaoling Liu

All Dissertations

Chlorinated volatile organic compounds (CVOCs) in fractured, low permeability material can be a long-term source of groundwater contaminants and they are among the most difficult remediation challenges. Thermal methods are a possible remediation option, where heat is used to boil water and the volatile compounds are stripped out by partitioning into the resulting water vapor. Theoretical analysis indicates that only a small fraction of pore water removal may lead to a significant geometric reduction in the dissolved concentration [(Udell(, 1998]. Previous modeling studies [(Falta and Murdoch(, 2011; (Pruess(, 1983] suggest that a lower permeability limit exists for effective mass transfer …

Scale Model Shake Table Testing Of Shallow Embedded Foundations In Soft Clay, Steven Kuo

Master's Theses

This research involves shake table testing of 1g scale models that mimic the coupled seismic response of a structure on a shallow mat foundation and foundation soil (known as soil-foundation-structural-interaction or SFSI). In previous research, SFSI effects have been quantified through analytical models, numerical analyses, and limited field data. This research works towards increasing the amount of empirical data through scale model shake table testing. A suite of earthquake time histories is considered in evaluating a nominal 10^th scale soil-structure model using a flexible wall barrel on a 1-D shake table. San Francisco Young Bay Mud (YBM) is used …

Fashionable Art, Lacey Kay

Theses and Dissertations

My final thesis exhibition, Fashionable Art, opens up a link between art and fashion. I used clay as my primary medium to create hyper-realistic handbags in the style of Trompe l'oeil. I am interested in placing art in fashion settings and fashion in art settings. In the show, I placed many purses on pedestals for a gallery setting, in a glass case for a purse shop setting and also placed large photos in a fashion photo shoot setting. I am concerned with creating an environment that celebrates the handbag from just an accessory to an art object. By using …

The Dragons In Your Dreams, Jacquelyn Walther

Theses and Dissertations

What if every craving that you ever felt stayed with you forever? Suppose facades couldn’t exist, and what should only be the deepest, densest core of a desire was formed into a mass, a body. Its will matching yours in its physical presence. I make creatures that are embodiments of emotions. In this study I mainly focus on desires and inhibitions surrounding romance. I explore anatomical structures and how material make-up can directly reflect emotional character. In this exploration, the materiality of clay allows for a thorough manipulation of the composition of the creatures. In this I am also able …

A Parametric Study Of Embankments On Clay Soils During Earthquake Shaking, Karla I. Reynoso

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study is a parametric evaluation of reduction in undrained shear strength of fine grained soils required to cause failure beneath embankments during earthquake loading. The evaluated parameters are: crust thickness, normalized undrained strength, maximum past pressure, and embankment height. Both finite element and limit equilibrium analyses were used to determine strength reductions that would lead to embankment failure. It was found that reductions of undrained strengths of 55% to 65% would lead to failure during earthquake loading.

The method proposed by Idriss and Boulanger was also used to predict strength reductions for each model over a range of earthquake …

An Evaluation Of The History Of Aqueous Activity On Mars Through A Survey Of Select Hypothesized Martian Deltas And Paleolakes Via The Analysis Of Mineralogy, Morphology, And Thermophysical Properties, Andrea C.G. Hughes

Masters Theses

Aqueous deposits are an essential key to understanding the geologic/climatic history of water on Mars. The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), High Resolution Imaging Science Experiment (HiRISE), and Thermal Emission Imaging System (THEMIS) have enabled studies of Martian fan deposits in unprecedented detail, including the identification of hydrated minerals (such as phyllosilicates, carbonates, and sulfates) and morphologies consistent with formation in an aqueous environment associated with Martian sedimentary deposits. In this study, twenty-six previously identified fan-shaped deposits (hypothesized as possible deltas) have been examined for hydrated minerals in the beds and distal regions of the deposits. Six deposits …

Transcendent Materiality, Lauren E. Mabry

School of Art, Art History, and Design: Theses and Student Creative Work

I make painterly, abstract, ceramic objects. My obsession with surface and materiality compels me to investigate the relationship between images and objects through the inherent qualities of ceramic material. Primarily my work communicates directly, through its formal and aesthetic qualities, but it may also be understood in relationship to abstract painting, minimal work, and process art. I exploit the intrinsic qualities of ceramic material producing works that are warm, seductive, and surprising. Ultimately, my work is a synthesis of intuitive, expressive surfaces and elemental forms.

In this body of work there are two main forms: cylinders and curved planes- as …

Use Of A Clay Modeling Task To Reduce Chocolate Craving., Jackie Andrade, Sally Pears, Jon May, David J. Kavanagh

School of Psychology

Elaborated Intrusion theory (EI theory; Kavanagh, Andrade, & May, 2005) posits two main cognitive components in craving: associative processes that lead to intrusive thoughts about the craved substance or activity, and elaborative processes supporting mental imagery of the substance or activity. We used a novel visuospatial task to test the hypothesis that visual imagery plays a key role in craving. Experiment 1 showed that spending 10 min constructing shapes from modeling clay (plasticine) reduced participants' craving for chocolate compared with spending 10 min 'letting your mind wander'. Increasing the load on verbal working memory using a mental arithmetic task (counting …

Assessment Of The Structural Development Of Resin Bonded Taphole Clay (Icsti 06), Sharon Nightingale, Lisa Wells, F W B U Tanzil, Jim Cummins, Brian J. Monaghan, K Price

Brian Monaghan

Resin in taphole clay provides good extrudability and strength at low temperatures. However, it also contains volatile matter that is lost on heating. The blast furnace taphole is subject to a large thermal gradient, leading to variation in the bonding and structure of the clay along the taphole’s length. This has a critical effect on properties. Effects of this variation in properties on furnace operations are not well understood. A simple laboratory test was devised to simulate the thermal gradient, and assess its effects on taphole clays. Thermogravimetric tests were also conducted at different heating rates. Results of experiments are …

World Tour Of Evangelism, Henry Clay Morrison

Heritage Material

No abstract provided.

Deformation And Degradation Of Clay Fouled Ballast Subjected To Monotonic Loading, Nayoma Tennakoon, Buddhima Indraratna, Sanjay Nimbalkar, Cholachat Rujikiatkamjorn

Faculty of Engineering - Papers (Archive)

Railways offer an efficient and economic transport mode in many countries including Australia, China and USA. Conventionally, rail tracks are positioned on ballast due to several potential benefits, including economy (availability and abundance), rapid drainage and high load bearing capacity. However, the ballast becomes contaminated due to intrusion of pumped subgrade material (e.g. clay and silt). This is one of the primary reasons for rapid track deterioration. In severe circumstances, fouled ballast needs to be cleaned or replaced to maintain the desired track resiliency, load bearing capacity and the track alignment, all of which influence the level of safety. In …

3d Numerical Modelling Of Hexagonal Wire Mesh Reinforced Embankment On Soft Bangkok Clay, Cholachat Rujikiatkamjorn, Buddhima Indraratna, Dennes T. Bergado

Faculty of Engineering - Papers (Archive)

The numerical modeling of the full scale test embankment reinforced with hexagonal wire mesh was analyzed using finite difference method under three dimensional (3D) conditions to reflect the actual embankment dimensions. In the analysis, the 3D finite difference simulation using 5 times of vertical laboratory permeability can reasonably predict its behavior on soft foundation. In comparison with the field measurements, the predicted results from 3D analysis reasonably agreed with measured data including vertical settlement, excess pore pressures and lateral displacements. Thus, the actual embankment geometry and the selected permeability influenced the behavior of the reinforced embankment constructed on soft ground …

Journey, Hosik Kim

Electronic Theses and Dissertations

My ceramic sculptures are about my story as well as the stories of all of us. Through these children that were born from clay, I find myself remembering and returning to the long journey that I have been walking all along. Memories are often the inspiration for my work, whether they are good or bad. In Korean, we call this [Special characters omitted]. I preserve these memories by carving into the surface of the clay, revealing a tattoo-like effect. I tried to make my own tattoos through my artwork because tattoos have a story and stay forever. My thesis speaks …

Strength Development In Blended Cement Admixed Saline Clay, Suksun Horpibulsuk, Worawit Phojan, Apichat Suddeepong, Avirut Chinkulkijniwat, Martin D. Liu

Faculty of Engineering - Papers (Archive)

Cement stabilization is extensively used to improve engineering properties of soft saline clays. The effect of salinity, which is modified by geological and climate changes, on the strength development in cement admixed saline clay is investigated in this paper. For a particular curing time and salt content, the strength development in saline clay admixed with cement is governed by the clay-water/cement ratio, wc/C. The strength increases with the decrease of wc/C. The increase in salt content for a particular water content decreases the inter-particle attraction of the clay and the cementation bond strength. Hence, for the same clay-water/cement ratio, the …

Physical Modelling Of Soft Clay Consolidation Using Vacuum-Surcharge Method, Cholachat Rujikiatkamjorn

Faculty of Engineering - Papers (Archive)

In Ihis paper, the large-scalc consolidation apparatus was employed to investi gate the performance of vacuum prelollding with conventional surcharge loading. Several tests were conducted \0 examine the efTect of a vacuum and associ(lled paTHlllclers Slich as smC:!T zone and soil permeability characteristics. The measured settlement and excess pore pressure indi cates that the vacuum application has certain benefits to control excess pore pressure for a given total loading applictlti on. The analyticn l modelling for rad ial consolidation and vacuum prcloading considering both variation of soil comprcssibility and perrneability was cmployed to predict the soil consolidation behaviour. It is …

A Biographical Sketch Of Henry Clay Morrison, D.D.: The Man And His Ministry, C. F. Wimberly

Heritage Material

No abstract provided.

The Role Of Clay Minerals In The Transformation Of E. Coli, Ekaterini Porttellou

Dissertations and Theses

No abstract provided.

Performance Of A Reinforced Embankment On A Sensitive Champlain Clay Deposit, Chalermpol Taechakumthorn, R K. Rowe

Faculty of Engineering and Information Sciences - Papers: Part A

An existing elastoviscoplastic constitutive model is modified using concepts of the state-dependent fluidity parameters and the damage law, to incorporate the effect of soil structure and its destructuration. The model is employed to simulate the performance of a well-documented case study of the reinforced test embankment constructed over a sensitive Champlain clay deposit at Saint Alban, Quebec. The finite element calculations, using both the original (nonstructured) and modified (structured) elastoviscoplastic soil models, are compared with the observed field data from a test embankment brought to failure. The results from the structured elastoviscoplastic soil model show better agreements with the field …