Dissertations / Theses on the topic 'Technology Oceania'
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Waugh, Daniel. "Oceania Football Confederation the impact of affiliate disaffiliation on the inter-organizational dynamics of a federated network : a dissertation submitted to Auckland University of Technology in partial fulfilment of the requirements for the degree of Master of Business (MBus), 2009 /." Click here to access this resource online, 2009. http://hdl.handle.net/10292/796.
Full textNishiyama, Takashi. "Swords into plowshares civilian application of wartime military technology in modern Japan, 1945-1964 /." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1104324814.
Full textTitle from first page of PDF file. Document formatted into pages; contains xiv, 246 p.; also includes graphics (some col.) Includes bibliographical references (p. 212-242).
Kim, Edward H. 1974. "Advanced satellite communication technology for oceanic air traffic control." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47526.
Full textAnders, Signahl, and Hjerpe Nils. "Deep Green i oceana strömmar - en konceptstudie." Thesis, Linköping University, Machine Design, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57829.
Full textWith growing economies and better living standards in many parts of the world today, there is a need of expanding the capacity of generating electricity. The alternatives for renewable energy technologies are not fully developed and have still some problems to conquer.
The company Minesto has developed a technology that is called Deep Green. It is designed to gain electricity from tidal currents. Deep Green works in a similar way as a kite that is attached to the seafloor with a moving wire. It contains of a wing that moves due to the water current. The path of the movement is circular or a shape of an “8”. The turbine under the wing is powered by the water flow which in turn leads to generation of electricity by the generator.
The purpose of this thesis is to investigate the potential of using the Deep Green technology in ocean currents with respect to construction and economy. The site for the investigation is off the east coast of Florida where the Florida current streams with a speed of about 1, 5 m/s close to the surface. The major difference compared to the use in tidal currents is the deep waters of about 300 m and a oneway current direction.
A mooring construction was developed and optimized and with the use of carbon fiber ropes, buoys and foundations lets 9 Deep Greens operate between 20 and 79 m depth. The idea is to install 7 such clusters with a total of 63 Deep Greens on the site in Florida. This configuration generates a power of 24 MW and gives a production of 185 GWh/year.
Economic accounts were made with support of earlier made calculations regarding a park of 60 Deep Greens in a tidal current application. The results for the clustered configuration in ocean currents indicated a cost of 0,67 SEK/kWh with a discount rate of 8%. The required capital for the installation is about 780 mSEK (CAPEX). The operating costs (OPEX) are 43,3 mSEK.
The design seems reasonable in many respects and it operates in a continuous ocean current with good electricity generation. The use of Deep Green in ocean currents speaks for being a profitable application. Though, it will be a large‐scale economic project, mainly because installations in a small scale will not be profitable due to costs such as grid connection.
Critical issues to look at in a further development was considered to be surveys of the installation site, the displacement and movements of the mooring, the buoyancy‐system and the installation procedure.
Petrakakos, Nikolaos Harilaos. "Port security and information technology." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33573.
Full textIncludes bibliographical references (p. 92).
The terrorist attacks of September 11th 2001 on New York and Washington DC shed light on the many security shortcomings that sea ports and the entire import and export process face. A primary source of these problems is the information sharing process which makes it hard to track the source of a problem in the import and export process due to lack of information and coordination. This thesis attempts to examine these data sharing problems by looking at what federal agencies, ports, and other private firms have been doing to solve the problems. The document exchange between various stakeholders and the process behind that was also examined to find potential problems. The reason behind doing this is because it is essential to understand the process and its problems before any meaningful results can be extracted from examining the efforts being done to solve the problems. The findings were similar for all cases showing that the primary reason preventing any of these problems to be solved is the unwillingness of commercial stakeholders to share information due to lack of incentives and privacy concerns.
by Nikolaos Harilaos Petrakakos.
S.M.
Ryan, Andrea Catherine 1968. "Should we fertilize the oceans? : examining the science, economics and policy of the iron hypothesis & ocean fertilization." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9604.
Full textIncludes bibliographical references.
John Martin's 'iron hypothesis' (Martin, 1990), and the subsequent ground-breaking IRONEX experiments (Martin 1994, Coale 1996) have stimulated wide spread speculation about the concept of fertilizing the oceans. It has been suggested that adding nutrients to the open oceans will stimulate primary production, increasing the sequestration of carbon dioxide and enhancing potential fish harvest. Ocean fertilization has thus been heralded as a possible cure for global climate change and world food shortages. Despite considerable scientific effort, private investment, and public interest in this field there has been limited evaluation of the feasibility of ocean fertilization. This thesis attempts to fill this void by addressing not only the scientific, but also the economic and policy dimensions of ocean fertilization. It starts by reviewing current research proposals and implementation activities in the field of ocean fertilization. It identifies potential environmental impacts and biogeochemical consequences of ocean fertilization, highlighting the outstanding scientific unknowns associated with this field. The study reviews cost estimates compiled by the private sector, and examines likely practical obstacles to implementation. Legal, political and public response to fertilization proposals is also explored. Finally, some of the ethical concerns relating to fertilizing the oceans are discussed, and recommendations on future research directions and initiatives to manage this rapidly growing field are provided.
by Andrea Catherine Ryan.
S.M.
Kleiman, Alexander B. (Alexander Bjørn) 1973. "The application of Automatic Identification Technology onboard naval and commercial ships." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/91347.
Full textStromgren, Chel 1969. "The use of automatic identification technology to improve shipyard material handling processes." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/88352.
Full textPsallidas, Konstantinos 1973. "Forecasting the system-level impact of technology infusion on conventional submarine design." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/91799.
Full textIncludes bibliographical references (leaves 105-107).
by Konstantinos Psallidas.
S.M.in Ocean Systems Management; and, Nav.E.
Barlin, Matthew V. (Matthew Victor) 1975. "Implementing automatic identification technology to improve the construction of naval and commercial ships." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/91352.
Full textDunlap, Gary H. (Gary Holt) 1961. "Applied information technology (IT) for ship design, production and lifecycle support : a total systems approach." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80194.
Full textIncludes bibliographical references (leaves 108-110).
by Gary H. Dunlap.
S.M.in Ocean Systems Management
S.M.in Naval Construction and Engineering
Larson, Parker E. (Parker Edward) 1979. "The technology and economic feasibility of offshore liquefied natural gas receiving terminals in the United States." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/91797.
Full textIncludes bibliographical references (p. 96-102).
by Parker E. Larson.
S.M.in Ocean Systems Management
Glanvill, Sarah Jane Marie. "Atmospheric corrosion of AA2024 in ocean water environments." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8554/.
Full textMurphy, Brian P. (Brian Patrick) 1963. "Machinery monitoring technology design methodology for determining the information and sensors required for reduced manning of ships." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/88345.
Full textIncludes bibliographical references (p. 115-116).
by Brian P. Murphy.
Nav.E.
S.M.
Ito, Takamitsu 1976. "The biogeochemistry and residual mean circulation of the southern ocean." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/30290.
Full textIncludes bibliographical references (p. 233-244).
I develop conceptual models of the biogeochemistry and physical circulation of the Southern Ocean in order to study the air-sea fluxes of trace gases and biological productivity and their potential changes over glacial-interglacial timescales. Mesoscale eddy transfers play a dominant role in the dynamical and tracer balances in the Antarctic Circumpolar Current, and the transport of tracers is driven by the residual mean circulation which is the net effect of the Eulerian mean circulation and the eddy-induced circulation. Using an idealized, zonally averaged model of the ACC, I illustrate the sensitivity of the uptake of transient tracers including CFC11, bomb-[Delta]¹⁴C and anthropogenic CO₂ to surface wind stress and buoyancy fluxes over the Southern Ocean. The model qualitatively reproduces observed distribution of CFC11 and bomb-[Delta]¹⁴C , and a suite of sensitivity experiments illustrate the physical processes controlling the rates of the oceanic uptake of these tracers. The sensitivities of the uptake of CFC11 and bomb-[Delta]¹⁴C are largely different because of the differences in their air-sea equilibration timescales. The uptake of CFC11 is mainly determined by the rates of physical transport in the ocean, and that of bomb-[Delta]¹⁴C is mainly controlled by the air-sea gas transfer velocity. Anthropogenic CO₂ falls in between these two cases, and the rate of anthropogenic CO₂ uptake is affected by both processes. Biological productivity in the Southern Ocean is characterized with the circum- polar belt of elevated biological productivity, "Antarctic Circumpolar Productivity Belt".
(cont.) Annually and zonally averaged export of biogenic silica is estimated by fitting the zonally averaged tracer transport model to the climatology of silicic acid using the method of least squares. The pattern of export production inferred from the inverse calculation is qualitatively consistent with recent observations. The pattern of inferred export production has a maximum on the southern flank of the ACC. The advective transport by the residual mean circulation is the key process in the vertical supply of silicic acid to the euphotic layer where photosynthesis occurs. In order to illustrate what sets the position of the productivity belt, I examined simulated biological production in a physical-biogeochemical model which includes an explicit ecosystem model coupled to the phosphate, silica and iron cycle. Simulated patterns of surface nutrients and biological productivity suggest that the circumpolar belt of elevated biological productivity should coincide with the regime transition between the iron-limited Antarctic zone and the macro-nutrients limited Subantarctic zone. At the transition, organisms have relatively good access to both micro and macro-nutrients. Kohfeld (in Bopp et al.; 2003) suggested that there is a distinct, dipole pattern in the paleo-proxy of biological export in the Southern Ocean at the LGM. I hypothesize that observed paleo-productivity proxies reflect the changes in the position of the Antarctic Circumpolar Productivity Belt over glacial-interglacial timescales. Increased dust deposition during ice ages is unlikely to explain the equatorward shift in the position of the productivity belt due to the expansion of the oligotrophic region and the poleward shift of the transition between the iron-limited regime and the macro-nutrient limited regime.
(cont.) I develop a simple dynamical model to evaluate the sensitivity of the meridional overturning circulation to the surface wind stress and the stratification. The theory suggest that stronger surface wind stress could intensify the surface residual flow and perturb the position of the productivity belt in the same sign as indicated by the paleo-productivity proxies. Finally, I examined the relationship between the surface macro-nutrients in the polar Southern Ocean and the atmospheric pCO₂. Simple box models developed in 1980s suggests that depleting surface macro-nutrients in high latitudes can explain the glacial pCO₂ drawdown inferred from polar ice cores. A suite of sensitivity experiments are carried out with an ocean-atmosphere carbon cycle model with a wide range of the rate of nutrient uptake in the surface ocean. These experiments suggest that the ocean carbon cycle is unlikely to approach the theoretical limit where "pre- formed" nutrient is completely depleted due to the dynamics of deep water formation. The rapid vertical mixing timescales of convection preclude the ventilation of strongly nutrient depleted waters. Thus it is difficult to completely deplete the "preformed" nutrients in the Southern Ocean even in a climate with elevated dust deposition in the region, suggesting some other mechanisms for the cause of lowered glacial pCO₂.
by Takamitsu Ito.
Ph.D.
Sarmah, Biki. "Optimisation of Electromechanical Drivetrain for Wave Energy Converter at CorPower Ocean AB." Thesis, KTH, Fordonsdynamik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-234838.
Full textSchneider, Bettina. "Economic feasibility study for the wave energy technology of Gaia Power Group Pty Ltd." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/79331.
Full textGaia Power is a South African start-up in the renewable energy industry. Among other products, they developed a wave energy converter, which is a device used to extract energy from ocean waves. This research deals with the economic feasibility study of the wave energy converter. Wave energy is a young field of research, especially in the South African context. Therefore sources for multiple angles of the project had to be found, analysed and brought into the Gaia Power context. Understanding the cost drivers of a wave energy plant was the foundation of the research itself. The Gaia Power specific levelised cost of electricity generation was calculated based on actual supplier quotes, reference costs found in the literature as well as assumptions. Still, such a calculation is actually more an estimation due to a high uncertainty level in all cost components. Especially the construction cost as well as the discount rate used have therefore been tested for sensitivity. Gaia Power‟s target production cost was R0.54 kWh, which equalled the Eskom tariff at the time of this research. Taking into account a R0.10/kWh fee payable to Eskom, the target cost sank to R0.44, which is about 25 percent lower than the minimum value for electricity generation cost found in the literature. This target was therefore expected to be and proved to be difficult to reach. The calculated levelised electricity cost was R0.99/kWh, with a possible range of R0.54/kWh to R1.60/kWh observed in the sensitivity analysis. These results show that the Gaia Power wave energy converter in the given specifications was not economically feasible. It was therefore recommended to rethink the specifications in order to reduce construction cost, which proved to be the largest cost driver. Besides the quantitative findings, this research also has a strong qualitative side. During the whole research it became obvious that there was an overall high risk level in the project due to the lack of experience with wave energy in general and in South Africa specifically, as well as the high impact of weather on the construction. Those risks were identified, analysed and recommended mitigation actions were derived.
Lijefors, Carl, and Adrian Stenbäck. "Dynamics of non-spherical particles in vortices : Accumulation of plastics in the ocean." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297797.
Full textIsraelsson, Peter H. (Peter Hampus) 1973. "Evaluation of the environmental viability of direct injection schemes for ocean carbon sequestration." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43163.
Full textIncludes bibliographical references (p. 143-159).
This thesis evaluates the expected impact of several promising schemes for ocean carbon sequestration by direct injection of CO2, and serves as an update to the assessment by Auerbach et al. (1997) and Caulfield et al. (1997) of water quality impacts and the induced mortality to zooplankton. The present work extends the methodology used in the earlier studies, incorporates recent acute CO2 toxicity data on marine organisms, and considers three revised discharge approaches: a point release of negatively buoyant CO2 hydrate particles from a moving ship; a long, bottom-mounted diffuser discharging buoyant liquid CO2 droplets; and a stationary point release of hydrate particles forming a sinking plume. Results suggest that it is possible with present technology to engineer discharge configurations which achieve sufficient dilution to largely avoid acute impacts. Sub-lethal and ecosystem effects are discussed qualitatively, but not analyzed quantitatively. The analysis suggests that, as a temporary climate change mitigation strategy, ocean carbon sequestration by direct injection should not be dismissed on the basis of environmental impact alone. With minor modification, this thesis will also serve as the final chapter of the author's Ph.D. thesis to be submitted in 2008 to the MIT Department of Civil and Environmental Engineering.
by Peter Hampus Israelsson.
S.M.
Den, Hollander Nikki, and Thorkell V. Thorsteinsson. "A Systematic Approach to Analyze Industrial Clusters : A Case Study of The Iceland Ocean Cluster." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279730.
Full textRegionala industrier uppvisar en trend när det gäller koncentration av företag i ekonomiska områden. Företag inom dessa regioner centreras och bildar ett kluster med breda samarbeten företagen emellan. Resultatet blir en förbättring när det gäller flertalet aspekter inom regionen, såsom innovation och entreprenöriella aktiviteter och attityder. Forskning på klusterteori har visat på ett effektivt sätt att analysera ett klusters strategi och nuvarande tillstånd genom att identifiera dess nuvarande fas i klustrets livscykel. För att kunna lokalisera ett kluster i klustrets livscykel måste klustrets karaktäristika mappas och analyseras. Här finns ett gap i litteraturen då det inte råder någon konsensus över hur klusters karaktäristika kan analyseras på ett systematiskt sätt. Denna uppsats utvecklar ett nytt sätt analysera klusters karaktärsdrag genom att använda Cluster Canvas. Baserat på existerande och nyligen utvecklade metoder, svarar uppsatsen på forskningsfrågan: Vad kan vi lära oss från ett specifikt kluster genom att analysera unika faktorer i dess omgivning? För att skapa den mest kompletta representationen av fenomenet i dess kontext, analyseras ett specifikt case. Iceland Ocean Cluster (IOC) är det kluster som studeras i uppsatsen, Primärdata samlas in på flertalet nivåer med hjälp av enkätundersökning samt semi-strukturerade intervjuer, vilka senare analyseras kvalitativt. Vår analys resulterar i ett Cluster Canvas som innehåller de mest signifikanta resultaten och som skapar en bild av klustret i fokus för detta kluster i dess nuvarande form. Våra viktigaste slutsatser om klustrets status relaterar till dess mångfald i termer av samarbete och portföljen av företag, samt hur detta relaterar till kunskapsspridning inom och utanför klustret. Slutligen, visar resultaten att klustrets förmåga att anpassa och förnya strategier över tiden har varit betydelsefullt för att säkerställa dess långsiktiga relevans i branschen.
Wist, Hanne Therese. "Statistical properties of successive ocean wave parameters." Doctoral thesis, Norwegian University of Science and Technology, Norwegian University of Science and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16.
Full textFor random waves the free surface elevation can be described by a number of individual wave parameters. The main objective of this work has been to study the statistical properties of individual parameters in successive waves; the wave crest height, the wave height and the wave period.
In severe sea states the wave crest heights exhibit a nonlinear behavior, which must be reflected in the models. An existing marginal distribution that uses second order Stokes-type nonlinearity is transformed to a two-dimensional distribution by use of the two–dimensional Rayleigh distribution. This model only includes sum frequency effects. A two-dimensional distribution is also established by transforming a second order model including both sum and different frequency effects. Both models are based on the narrow-band assumption, and the effect of finite water depth is included. A parametric wave crest height distribution proposed by Forristall (2000) has been extended to two dimensions by transformation of the two-dimensional Weibull distribution.
Two successive wave heights are modeled by a Gaussian copula, which is referred to as the Nataf model. Results with two initial distributions for the transformation are presented, the Næss (1985) model and a two-parameter Weibull distribution, where the latter is in best agreement with data. The results are compared with existing models. The Nataf model has also been used for modeling three successive wave heights. Results show that the Nataf transformation of three successive wave heights can be approximated by a first order autoregression model. This means that the distribution of the wave height given the previous wave height is independent of the wave heights prior to the previous wave height. The simulation of successive wave heights can be done directly without simulating the time series of the complete surface elevation.
Successive wave periods are modeled with the Nataf transformation by using a two-parameter Weibull distribution and a generalized Gamma distribution as the initial distribution, where the latter is in best agreement with data. Results for the marginal and two-dimensional distributions are compared with existing models. In practical applications, it is often of interest to consider successive wave periods with corresponding wave heights exceeding a certain threshold. Results show that the distribution for successive wave periods when the corresponding wave heights exceed the root-mean-square value of the wave heights can be approximated by a multivariate Gaussian distribution. When comparing the results with data, a long time series is needed in order to obtain enough data cases. Results for three successive wave periods are also presented.
The models are compared with field data from the Draupner field and the Japan Sea, and with laboratory data from experiments at HR Wallingford. In addition, data from numerical simulations based on second order wave theory, including both sum and frequency effects, are included.
Lambert, Bennett S. (Bennett Spencer). "Observing microbial processes at the microscale with In Situ technology." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122326.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 126-137).
Although seawater appears uniform at scales that humans often interact with and sample, the world that marine microbes inhabit can be highly heterogeneous, with numerous biological and physical processes giving rise to resource hotspots where nutrient concentrations exceed background levels by orders of magnitude. While the impact of this microscale heterogeneity has been investigated in the laboratory with microbial isolates and theoretical models, microbial ecologists have lacked adequate tools to interrogate microscale processes directly in the natural environment. Within this thesis I introduce three new technologies that enable interrogation of microbial processes at the microscale in natural marine communities. The IFCB-Sorter acquires images and sorts individual phytoplankton cells, directly from seawater, allowing studies exploring connections between the diversity of forms present in the plankton and genetic variability at the single-cell level.
The In Situ Chemotaxis Assay (ISCA) is a field-going microfluidic device designed to probe the distribution and role of motility behavior among microbes in aquatic environments. By creating microscale hotspots that simulate naturally occurring ones, the ISCA makes it possible to examine the role of microbial chemotaxis in resource acquisition, phytoplankton-bacteria interactions, and host-symbiont systems. Finally, the Millifluidic In Situ Enrichment (MISE) is an instrument that enables the study of rapid shifts in gene expression that permit microbial communities to exploit chemical hotspots in the ocean. The MISE subjects natural microbial communities to a chemical amendment and preserves their RNA in a minute-scale time series.
Leveraging an array of milliliter-volume wells, the MISE allows comparison of community gene expression in response to a chemical stimulus to that of a control, enabling elucidation of the strategies employed by marine microbes to survive and thrive in fluctuating environments. Together, this suite of instruments enables culture-independent examination of microbial life at the microscale and will empower microbial ecologists to develop a more holistic understanding of how interactions at the scale of individual microbes impact processes in marine ecosystems at a global scale.
by Bennett S. Lambert.
Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Department of Civil and Environmental Engineering; and the Woods Hole Oceanographic Institution)
Thesis(Ph.D.)--JointPrograminAppliedOceanScienceandEngineering(MassachusettsInstituteofTechnology,DepartmentofCivilandEnvironmentalEngineering;andtheWoodsHoleOceanographicInstitution)
Arabindan-Kesson, Anna Evangeline. "Threads of empire| The visual economy of the cotton trade in the Atlantic ocean world, 1840-1900." Thesis, Yale University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3580726.
Full textThis dissertation examines the art and material culture of the Anglo-American cotton trade in the nineteenth century to consider how these transnational processes influenced different modes of production: artistic, industrial and textile. The Anglo-American cotton trade's importance in the nineteenth century rested on the Atlantic slave trade and its aftereffects. Therefore this study foregrounds the centrality of African American history and culture to the trade's structures of exchange, encounter and transmission as they inflected nineteenth-century British and American artistic production and industrial expansion. In four chapters beginning in 1840 and ending at the beginning of the twentieth century, I juxtapose the work of contemporary artists with historical case studies. I argue that these contemporary artists – Leonardo Drew, Lubaina Himid and Yinka Shonibare – offer new interpretive frameworks for approaching the transactional and transnational contexts of nineteenth-century British, American and African American art and material culture.
Chapter one focuses on the relationship between plantations in the American South and New England, using prints, paintings and textiles that reveal the plantation and factory to be connected landscape. I trace how cotton's movement shaped constructions around place, and materialized connections between communities of labor in antebellum America. Chapter two opens with Lubaina Himid's Cotton.com (2002) and expands the historical relationship of plantation and factory out across the Atlantic. Centralizing Eyre Crowe's Slaves Waiting for Sale, Richmond, Virginia (1861) and the export of printed cotton from Manchester, it examines the convergence of the trade in cotton with the trade in slaves. It considers how these market relations shaped the commodification of the enslaved body, British experiences of factory labor, and Manchester production of printed cloth for consumers across the globe. Chapter three begins with Leonardo Drew's Number 25 to consider the tensions between materiality and abstraction in the production and commodification of cotton and art objects. I then examine paintings by Edgar Degas, A Cotton Office in New Orleans (1873), and Winslow Homer, The Cotton Pickers, (1876) to explore how these artists negotiated the status of cotton as a global commodity and grappled with the changing networks, of labor, production and commerce in postbellum America. Eyre Crowe's painting of factory workers in Lancashire, The Dinner Hour, Wigan (1874) concludes this section, which examines how the international market for cotton was influencing the representation and experience of industry in north west England. My final chapter, commencing with an installation by Yinka Shonibare MBE Scramble for Africa (2003), focuses on the commercial logic and visual rhetoric of three Southern international exhibitions. I examine how these exhibitions constructed the South – through visions of cotton plantations and black cotton pickers – as a space for domestic colonial expansion. Alongside this I look at the ways Africa was being constructed as a new cotton market – both as a site of cultivation and a site of consumption. In both sections I underscore how the language of commerce, colonialism and cotton shaped particular constructions of space and meanings around the African, and African American body. I conclude with the work of Meta Warrick Fuller to briefly examine how black Americans dismantled these tropes of exclusion, signified by cotton, to project claims for equality.
The project argues that the art works under examination here draw on an economic language to visualize particular ideas and constructions around labor, production and race in three ways. It traces the contours of a market-driven aesthetic in the ways cotton was used to illustrate or materialize connections to a circulating economy of goods. It describes how cotton's movement shaped the construction of imagined geographies around sites of labor and spaces of consumption. And it sketches out the speculative vision that emerged throughout the nineteenth century in the material and metaphorical associations of cotton, commerce and African American identity. In revealing the representational possibilities of cotton in this way, this dissertation looks at understudied objects to consider the nuanced ways that local cultural forms have, historically, intersected with global processes in the Atlantic world. It centralizes the experience of African Americans, within an Anglo-American culture of exchange and its relationship to a global network of trade and transmission. In doing so it seeks to reframe the ways we might approach historical processes of visuality and perception in the long nineteenth century in order to create a more global, or at least transnational, perspective on the art of this period.
Siegelman, Lia. "Ageostrophic dynamics in the ocean interior A correction for the thermal mass–induced errors of CTD tags mounted on marine mammals, in the Journal of Atmospheric and Oceanic Technology 35 (6), June 2018 Submesoscale ocean fronts act as biological hotspot for southern elephant seal, in Scientific Reports 9, 2019 Ocean‐scale interactions from space, in Earth and Space Science 6(5), May 2019 Correction and accuracy of high- and low-resolution CTD data from animal-borne instruments, in the Journal of Atmospheric and Oceanic Technology 36 (5), May 2019 Diagnosing ocean‐wave‐turbulence interactions from space, in Geophysical Research Letters 46(15), August 2019 Sub‐mesoscale fronts modify elephant seals foraging behavior, in Limnology and Oceanography Letters, 4(6), December 2019." Thesis, Brest, 2019. http://www.theses.fr/2019BRES0094.
Full textThe ocean is the largest solar energy collector on Earth. The amount of heat it can store is modulated by its complex circulation, which spans a broad range of spatial scales, from centimeters to thousands of kilometers. This dissertation investigates two types of physical processes: mesoscale eddies (100-300 km size) and submesoscale fronts (£ 50 km size). To date, ageostrophic submesoscale motions are thought to be mainly trapped within the ocean surface mixed layer, and to be weak in the ocean interior. This is because, in the classical paradigm, motions below the mixed layer are broadly assumed to be in quasigeostrophic balance, preventing the formation of strong buoyancy gradients at depth. This dissertation introduces a paradigm shift; based on a combination of high-resolution in situ CTD data collected by instrumented elephant seals, satellite observations of sea surface height, and high-resolution model outputs in the Antarctic Circumpolar Current, we show that ageostrophic motions (i) are generated by the backgound mesoscale eddy field via frontogenesis processes, and (ii) are not solely confined to the ocean surface mixed layer but, rather, can extend in the ocean interior down to depths of 1 000 m. Deepreaching ageostrophic fronts are shown to drive an anomalous upward heat transport from the ocean interior back to the surface that is larger than other contributions to vertical heat transport and of comparable magnitude to air-sea fluxes. This effect can potentially alter oceanic heat uptake and will be strongest in eddy-rich regions such as the Antarctic Circumpolar Current, the Kuroshio Extension, and the Gulf Stream, all of which are key players in the climate system. As such, ageostrophic fronts at submesoscale provide an important, yet unexplored, pathway for the transport of heat, chemical and biological tracers, between the ocean interior and the surface, with potential major implications for the biogeochemical and climate systems
De, Figueiredo Mark A. (Mark Anthony) 1978. "The Hawaii carbon dioxide ocean sequestration field experiment : a case study in public perceptions and institutional effectiveness." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/16929.
Full textIncludes bibliographical references.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
In December 1997, an international project agreement was signed in Kyoto for a collaborative study of the direct injection of carbon dioxide into the deep ocean. After a detailed international site selection process, the Natural Energy Laboratory of Hawaii Authority (NELHA), a quasi-governmental organization, was chosen as the host for the project in March 1998. In addition to fulfilling the necessary technical criteria, NELHA maintained an ocean research corridor, and it was impressed upon the project team that this could facilitate the permitting process. International steering and technical committees served as advisors to the Hawaii-based project general contractor, Pacific International Center for High Technology Research. The committees also planned a multi-year public outreach program to engage residents of Hawaii about the carbon sequestration project. Before the outreach program began, a reporter wrote about the planned carbon sequestration experiment in a March 18, 1999 front-page article in the local newspaper, West Hawaii Today. As a result, some members of the community started organizing an opposition to the project, culminating in the creation of the "Coalition Against CO2 Dumping." Concerns raised by the opposition included the environmental impacts on the ocean ecology, Not-In-My-Backyard feelings, anti-fossil fuel sentiment, and issues regarding native Hawaiian sovereignty. The project team reacted by implementing a dual public relations and outreach strategy, creating a website, responding to hundreds of emails and letters, and holding public meetings. A major fallout from the opposition was that permitting became much more difficult, involving multiple agencies on the state and federal level. In addition, the controversy affected the project's relationship to its NELHA host and caught the attention of the Hawaii state legislature. After the project team conducted an Environmental Assessment, US Department of Energy issued a Finding of No Significant Impact (FONSI), an important milestone in the permitting process. This thesis summarizes the events from project start through the issuing of the FONSI, discusses the lessons learned from the experience, and provides recommendations for institutions dealing with public perception issues in future projects.
by Mark Anthony de Figueiredo.
S.M.
Taha, Ahmed Mohamed Youssef. "Investigating an interactive technological self study conceptual framework for on-board maritime education and training." Thesis, Liverpool John Moores University, 2018. http://researchonline.ljmu.ac.uk/9149/.
Full textPradhan, Suman. "Measurement of bubble velocity vectors in bubbly air water multiphase flow." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/9247/.
Full textWiratama, Nugroho. ""Blue heart ocean": a new technology of coral reef conservation in the implementation of fisheries sustainable economics, case studies jakarta waterfront city north Jakarta." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/10343.
Full textHansson, Mikael. "Critical review of strategic theories : Applicable to new technologies." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77124.
Full textMeckassoua, Abdou Karim. "Etudes comparées des activités de régulation d'un dispositif automatisé dans le cadre d'un transfert de technologie." Paris, CNAM, 1986. http://www.theses.fr/1986CNAM0083.
Full textHarries, Tom. "Physical testing and numerical modelling of a novel vertical-axis tidal stream turbine." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/66145/.
Full textHudson, Andrew Philip. "Evaluation of the vertical and horizontal hydraulic conductivities of household wastes." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/79368/.
Full textLangesfeld, Ivan. "Fragile Oceans, Synthetic Flotsam and Microbial Collaboration – Explorations in the Visual Communication of the Plastic Crisis." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/pomona_theses/210.
Full textRydahl, Björn. "A VFX ocean toolkit with real time preview." Thesis, Linköping University, Department of Science and Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-50850.
Full textNg, Warren Heng Wan. "Identification, transport and treatment of adhered deleterious substances of stormwater in an urban catchment thesis submitted in fulfilment of the degree of Doctor of Philosophy, Earth & Oceanic Sciences Research Institute, Auckland University of Technology, August 2004 /." Full thesis. Abstract, 2004. http://puka2.aut.ac.nz/ait/theses/NgW.pdf.
Full textAl-Hinai, Sulaiyam. "Non-invasive velocity and volume fraction profile measurement in multiphase flows." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/9094/.
Full textLindroth, [formerly Tyrberg] Simon. "Buoy and Generator Interaction with Ocean Waves : Studies of a Wave Energy Conversion System." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-160085.
Full textSelig, Michael. "The influence of internal tyre pressure on road friction." Thesis, University of Huddersfield, 2014. http://eprints.hud.ac.uk/id/eprint/21030/.
Full textUsman, A. Y. "A resilience modelling approach for oil terminal operations under high uncertainties." Thesis, Liverpool John Moores University, 2017. http://researchonline.ljmu.ac.uk/6602/.
Full textBolstad, K. S. "Systematics of the Onychoteuthidae Gray, 1847 (Cephalopoda: Oegopsida) a thesis submitted to the Earth & Oceanic Sciences Research Institute, Auckland University of Technology in fulfilment of the requirements for the degree of Doctor of Philosophy, supervised by Dr Steve O'Shea, 2008." Click here to access this resource online, 2008. http://hdl.handle.net/10292/414.
Full textAl-Yarubi, Qahtan. "Phase flow rate measurements of annular flows." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/9104/.
Full textKameswar, Rao Vaddina. "Evaluation of A Low-power Random Access Memory Generator." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7823.
Full textIn this work, an existing RAM generator is analysed and evaluated. Some of the aspects that were considered in the evaluation are the optimization of the basic SRAM cell, how the RAM generator can be ported to newer technologys, automating the simulation process and the creation of the workflow for the energy model.
One of the main focus of this thesis work is to optimize the basic SRAM cell. The SRAM cell which is used in the RAM generator is not optimized for area nor power. A compact layout is suggested which saves a lot of area and power. The technology that is used to create the RAM generator is old and a suitable way to port it to newer technology has also been found.
To create an energy model one has to simulate a lot of memories with a lot of data. This cannot be done in the traditional way of simulating circuits using the GUI. Hence an automation procedure has been suggested which can be made to work to create energy models by simulating the memories comprehensively.
Finally, basic ground work has been initiated by creating a workflow for the creation of the energy model.
Doyle, Paul Norman. "The effects of human activities on stream water quality case studies in New Zealand and Germany : thesis submitted in partial fulfilment of the degree of Master of Applied Science, Earth and Oceanic Sciences Research Institute, Auckland University of Technology, Auckland, New Zealand, September 2005." Full thesis. Abstract, 2005.
Find full textDewas, Severine E. A. "Benthic-invertebrate diversity of Tucetona laticostata (Mollusca: Bivalvia) biogenic substrata in Hauraki Gulf a thesis submitted through the Earth & Oceanic Sciences Research Institute, Auckland University of Technology, in partial fulfilment of the requirements for the degree of Master of Applied Science (MAppSc), 2008 /." Click here to access this resource online, 2008. http://hdl.handle.net/10292/454.
Full textIslas-Cital, Alan. "Amplitude and phase sonar calibration and the use of target phase for enhanced acoustic target characterisation." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3460/.
Full textde, Ruyter Marcus J. M. "Two-dimensional cut plan optimization for cutter suction dredgers." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/79367/.
Full textBassili, Niclas, and Douglas Eriksson. "An evaluation of deterministic prediction of ocean waves using pressure data to assist a Wave Energy Converter." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279600.
Full textNuvarande enheter för att extrahera elektrisk energi från havsvågor lider av stora problem med låg effektivitet på grund av brist på information om de inkommande vågorna. Det komplexa ickelinjära dynamiska beteendet hos havsvågor gör förutsägelsen av dem till en stor utmaning. Det här arbetet syftar till att undersöka ett deterministiskt kortsiktigt system för att förutspå våg för våg, som noggrant kan förutspå våghöjd och tidpunkt för de inkommande vågorna, baserat på mätdata från en dränkbar trycksensor. Den kompletta förutsägelseprocessen innehåller tre steg, rekonstruktion, assimilering och förutsägelse. En ickelinjär weakly dispersive reconstruction method används först för att med hög noggrannhet beräkna ythöjningen från det uppmätta trycket. Därefter, används en variational assimilation method för att konvertera en tidsserie av ythöjningen till ett rumsligt vågfält, för att erhålla initialvillkor för förutsägelsen. Slutligen används en High Order Spectral Method för att deterministiskt förutspå utvecklingen av det tvådimensionella oregelbundna vågfältet baserat på de förvärvade initialvillkoren. För att verifiera prestandan av det föreslagna förutsägelsesystemet, så genomfördes tester med data från olika oregelbundna havstillstånd med varierande parametrar, genererade av simuleringar, såväl som modellexperiment utförda i en kontrollerad miljö i form av en vågtank. Resultaten från testerna visar att ythöjningen förutspås inom 5% från referensen, för en period på 10 sekunder framåt i tiden, för vågor som ett vågkraftverk vanligtvis utsätts för. Baserat på resultatet, så är det möjligt att förutspå inkommande vågor, men noggrannheten beror kraftigt på det aktuella havstillståndet och det valda avståndet för förutsägelsen. Resultaten har jämförts mot liknande tester gjorda med radardata och visat sig vara ett genomförbart alternativ för vissa havstillstånd. Sammanfattningsvis visas det att tryckmätningar, som ett medel för att mäta ett havsvågfält, är ett bra alternativ när de kombineras med ickelinjära rekonstruktions- och förutsägelsemetoder för att hjälpa till att öka ett vågkraftverks energigenerering.
Gallego, Bonet Guillermo. "Variational image processing algorithms for the stereoscopic space-time reconstruction of water waves." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39480.
Full textStrong, Rebecca. "The War on Plastics and Other Environmental Damages: An Analysis of Innovative Environmental Policies." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/cmc_theses/2152.
Full textBedford, Adam. "Strength in flexibility : research into innovative flexible bearing designs for wave convertor permanent magnet generators." Thesis, Lancaster University, 2011. http://clok.uclan.ac.uk/4192/.
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