Dissertations / Theses on the topic 'Storage and processing'
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Campbell, Callum Richard. "Hydrogen storage and fuel processing strategies." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2564.
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It is widely recognised that fossil fuels are finite, and alternatives should be investigated to secure future energy supplies. Much research is directed towards hydrogen as a fuel, but the gas is unmanageable without an effective storage and distribution strategy. This work investigates the Methylcyclohexane-Toluene-Hydrogen (MTH) system of hydrogen storage with a view to providing vehicular fuel or storing energy produced by intermittent producers. Stable liquid-hydrocarbon hydrogen storage enables hydrogen distribution using the existing fossil fuel network, eliminating the need to build a new fuel infrastructure. A literature survey is carried out covering the area of Liquid Organic Hydrogen Carriers (LOHCs). A study of the technoeconomic bottlenecks which would prevent the widespread use of the MTH system is conducted to direct the project research efforts, which reveals that the vehicular on-board dehydrogenation system must be reduced in size to be practical. Process intensification is attempted by dehydrogenating methylcyclohexane in the liquid-phase, which is experimentally demonstrated in this work (an original contribution). However, to be feasible for a vehicle, the liquid-phase dehydrogenation system demands a specific window of conditions, with hydrocarbon vapour pressure, enthalpy of reaction and equilibrium constant all being important factors. No window is possible to satisfy all conditions for the MTH system, which renders this vehicular system infeasible. Alternative liquid carriers are investigated to solve the problem, but no clear candidate carrier is found without using highly experimental and costly molecules. This leads to a new investigation of other applications for the MTH system. MCH for power to a Scottish whisky distillery is investigated, followed by an investment appraisal of the distillery system. The system is technically feasible but attracts a high capital expenditure (almost £16M) and operational cost (£2.4M annually) which is uncompetitive with alternative options such as biomass fuels. Finally, possible future work in the field of LOHC technology is considered.
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Dahlberg, Tobias. "Distributed Storage and Processing of Image Data." Thesis, Linköpings universitet, Databas och informationsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-85109.
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Systems operating in a medical environment need to maintain high standards regarding availability and performance. Large amounts of images are stored and studied to determine what is wrong with a patient. This puts hard requirements on the storage of the images. In this thesis, ways of incorporating distributed storage into a medical system are explored. Products, inspired by the success of Google, Amazon and others, are experimented with and compared to the current storage solutions. Several “non-relational databases” (NoSQL) are investigated for storing medically relevant metadata of images, while a set of distributed file systems are considered for storing the actual images. Distributed processing of the stored data is investigated by using Hadoop MapReduce to generate a useful model of the images' metadata.
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Bance, Simon G. "Data storage and processing using magnetic nanowires." Thesis, University of Sheffield, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505475.
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This thesis contains data from micromagnetic simulations that investigate new methods for data storage and processing on the nanoscale using ferromagnetic nanowires. First I consider a magnetic memory, domain wall trap memory, which could compete with a number of existing devices that are currently in widespread use. Domain wall trap memory exhibits a 90% lower coercivity over traditional MRAM designs because, instead of remagnetizing a rectangular or oval magnetic free layer by moment rotation or domain nucleation, an existing domain wall is moved along a structured nanowire to remagnetize part of the wire. I determine the fields for de-pinning, switching and expulsion of domain walls in memory cells to show that the margins between them can be sufficiently large for reliable operation. The nudged elastic band method is used to show that domain wall trap memory is thermally stable at room temperature.
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Hollstien, Dave. "Real-Time Storage for Modern Telemetry Processing Systems." International Foundation for Telemetering, 1985. http://hdl.handle.net/10150/615728.
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International Telemetering Conference Proceedings / October 28-31, 1985 / Riviera Hotel, Las Vegas, NevadaWith the ever increasing demands for higher data volumes and faster data rates, the real-time storage of data is consuming a vast majority of the conventional Telemetry system’s processing bandwidths. General purpose computers have traditionally shared the real-time functions of data storage and operator data and graphic displays. Although the power of the general purpose computer is increasing year-by-year, the telemetry data storage and display requirements are increasing at a far greater pace. Even the fastest host processors have proven incapable of keeping pace with these requirements. This paper will address an architectural approach to real-time storage that will relieve the host processor of this burden.
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Pitts, David Vernon. "A storage management system for a reliable distributed operating system." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/16895.
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Lakshmanan, Subramanian. "Secure store a secure distributed storage service /." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-08052004-010409/unrestricted/lakshmanan%5Fsubramanian%5F200412%5Fphd.pdf.
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Thesis (Ph. D.)--Computing, Georgia Institute of Technology, 2005.Ramachandran, Umakishore, Committee Member ; Lee, Wenke, Committee Member ; Blough, Douglas M., Committee Member ; Venkateswaran, H., Committee Member ; Ahamad, Mustaque, Committee Member. Includes bibliographical references.
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Aviran, Sharon. "Constrained coding and signal processing for data storage systems." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3214776.
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Thesis (Ph. D.)--University of California, San Diego, 2006.Title from first page of PDF file (viewed July 11, 2006). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.
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Cakmak, Gulhan. "The Processing Of Mg-ti Powder For Hydrogen Storage." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613102/index.pdf.
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A study was carried out on the selection of processing condition that would yield Mg-Ti with most favourable hydrogenation properties. Processing routes under consideration weremechanical milling under inert atmosphere, reactive milling i.e. milling under hydrogen atmosphere, ECAP (equal channel angular pressing) and thermal plasma synthesis. Structure resulting from each of these processing routes was characterized with respect to size reduction, coherently diffracting volume and the distribution of Ti catalyst. Mechanical milling yielded a particulate structure made up of large Mg agglomerates with embedded Ti fragments with a uniform distribution. Mg agglomerates have sizes larger than 100 µ
m which arises as a result of a balance between cold welding process and ductile fracture. Repeated folding of Mg particles entraps Ti fragments inside the Mg agglomerates resulting in a very uniform distribution. Coherently diffracting volumes measured by X-ray Rietveld analysis have small sizes ca. 26 nm which implies that the agglomerates typically comprise 1011 crystallites. Mechanical milling under hydrogen, i.e. reactive milling, led to drastic reduction in particle size. Mg and Ti convert to MgH2 and TiH2 which are milled efficiently due to their brittleness resulting in particle sizes of sub-micron range. Hydrogenation experiments carried out on Mg-10 vol % Ti milled under argon yields enthalpy and entropy values of -76.74 kJ/mol-H2 and -138.64 J/K.mol-H2 for absorption and 66.54 kJ/mol H2 and 120.12 J/K.mol H2 for desorption, respectively. For 1 bar of hydrogen pressure, this corresponds to a hydrogen release temperature of 280 °
C. This value is not far off the lowest desorption temperature reported for powder processed Mg based alloys. ECAP processing is a bulk process where the powders, consolidated in the first pass, have limited contact with atmosphere. This process which can be repeated many times lead to structural evolution similar to that of milling, but for efficient mixing of phases it was necessary to employ multi-pass deformation. An advantage of ECAP deformation is strain hardening of the consolidated powders which has improved milling ability. Based on this, a new route was proposed for the processing of ductile hydrogen storage alloys. This involves several passes of ECAP deformation carried out in open atmosphere and a final milling operation of short duration under inert atmosphere. The plasma processing yields Mg particles of extremely small size. Evaporation of Mg-Ti powder mixture and the subsequent condensation process yield Mg particles which are less than 100 nm. Ti particles, under the current experimental condition used, have irregular size distribution but some could be quite small, i.e. in the order of a few tens of nanometers. Of the four processing routes, it was concluded that both reactive milling and thermal plasma processing are well suited for the production of hydrogen storage alloys. Reactive milling yield particles in submicron range and plasma processing seems to be capable of yielding nanosize Mg particles which, potentially, could be decorated with even smaller Ti particles.
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Moinian, Abdolhosein. "Signal processing and coding for two-dimensional optical storage." Thesis, Lancaster University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440397.
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Marson, Hayley Johanne. "The effect of processing and storage on fruit products." Thesis, University of Nottingham, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.581990.
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There is a large body of evidence to suggest that an increased consumption of fruit is beneficial to health. However the quality of data in relation to fruit products is varied, with extremely limited research in relation to extrusion and smoothie processing, whilst data for fresh cut fruit and juice processing is selective in terms of commodity type rather than varietal or country of origin data. The hypothesis underlying this research looked to confirm that variety, country of origin and / or their interaction will influence the nutritional composition of whole fruits. Secondly the hypothesis puts forward that minimal processing and storage will negatively impact on the quality in terms of nutritional content and / or retention. Kiwi fruit (Hayward), from three geographical locations were assessed for vitamin C and antioxidant content. Italian kiwi fruits had significantly higher vitamin C and FRAP content than kiwi fruits from other countries (New Zealand and Chile) (p
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Thanos, A. J. "Physico-chemical changes in vegetables during processing and storage." Thesis, University of Reading, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373525.
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Conlin, Juliet Ann. "The relationship between storage and processing in working memory." Thesis, Durham University, 2005. http://etheses.dur.ac.uk/1787/.
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Huang, Chun. "Processing and properties of nanostructured solid-state energy storage devices." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:f97b7c40-35cc-4cd8-96d4-9928ec62b368.
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A scalable spray processing technique was used to fabricate carbon nanotube (CNT)-based film electrodes and solid-state supercapacitors. The sprayed CNT-based electrodes comprised a randomly interconnected meso-porous network with a high electrical conductivity. Layer-by-layer (LbL) deposition of functionalised and oppositely charged single-wall carbon nanotubes (SWNTs) increased the electrode density and improved charging and discharging kinetics when compared with carboxylic functionalised only SWNT electrodes. The capacitance was further increased to 151 F g-1 at 2 mV s-1 and 120 F g-1 at 100 mV s-1 after vacuum and H2 heat treatments that removed the functional groups, and resulted in a hybrid microstructure of SWNTs and multi-layer graphene sheets from unzipped SWNTs. Flexible solid-state supercapacitors were fabricated by directly spraying multi-wall carbon nanotube (MWNT)-based aqueous suspensions onto both sides of a Nafion membrane and dried. A single cell with MWNT-only electrodes had a capacitance of 57 F g-1 per electrode at 2 mV s-1 and 44 F g-1 at 150 mV s-1. Cells with MWNT/ionomer electrodes showed a higher H+ mobility and a lower charge transfer resistance, and the capacitance increased to 145 F g-1 at 2 mV s-1 and 91 F g-1 at 150 mV s-1. Finally, MWNT/TiO2 nanoparticle/ionomer hybrid electrodes were used in the same solid-state supercapacitor configuration and provided a capacitance of 484 F g-1 per electrode at 5 mV s-1 and 322 F g-1 at 100 mV s-1. A qualitative model of the charge storage mechanism was developed, where TiO2 promoted H+ ions via redox reactions that fed protons into the proton-conducting ionomer coating over the MWNTs (in which the TiO2 was embedded), while electrons were readily conducted through the MWNT scaffold. This solid-state supercapacitor provided both attractive energy (31.8 Wh kg-1) and power (14.9 kW kg-1) densities, where such high energy density is difficult to achieve for MWNTs alone and such high power density is difficult for metal oxides alone, especially in the solid state.
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Mohammed, Salahadin 1959. "Optimal multidimensional storage organisation for efficient query processing in databases." Monash University, School of Computer Science and Software Engineering, 2001. http://arrow.monash.edu.au/hdl/1959.1/8259.
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GonzaÌlez, Arcelus Isabel. "Advanced signal processing schemes for high density optical data storage." Thesis, University of Exeter, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413895.
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Yorukoglu, Deniz. "Scalable methods for storage, processing and analysis of sequencing datasets." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/108991.
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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 179-189).
Massive amounts of next-generation sequencing (NGS) reads generated from sequencing machines around the world have revolutionized biotechnology enabling wide-scale disease and variation studies, personalized medicine and helping us understand our evolutionary history. However, the amount of sequencing data generated every day increases at an exponential rate posing an imminent need for smart algorithmic solutions to handle massive sequencing datasets and efficiently extract the useful knowledge within them. This thesis consists of four research contributions on these two fronts. First, we present a computational framework that leverages the redundancy within large genomic datasets for performing faster read-mapping while improving sensitivity. Second, we describe a lossy compression method for quality scores within sequencing datasets that strikingly improves the downstream accuracy for genotyping. Third, we introduce a Bayesian framework for accurate diploid and polyploid haplotype reconstruction of an individual genome using NGS datasets. Lastly, we extend this haplotype reconstruction framework to high-throughput transcriptome sequencing datasets.
by Deniz Yorukoglu.
Ph. D.
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Kalibjian, Jeff. "Storage Systems and Security Challenges in Telemetry Post Processing Environments." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606206.
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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, CaliforniaA common concern in telemetry post-processing environments is adequate disk storage capacity to house captured and post-processed telemetry data. In today's network environments there are many storage solutions that can be deployed to address storage needs. Recent trends in storage systems reveal movement to implement security services in storage systems. After reviewing storage options appropriate for telemetry post-processing environments; the security services such systems typically offer will also be discussed and contrasted with other third party security services that might be implemented directly on top of a networked storage system.
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Jiang, Meng. "Processing and properties of nanostructured thin film energy storage devices." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:e651c635-6d92-4217-8442-43b2619c9c82.
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A spray deposition manufacturing route has been developed for the fabrication of carbon nano-structured and micro-structured energy storage devices in a thin film format, with controlled film thickness, homogeneous film surface morphology and high electrochemical performance for both supercapacitors and lithium ion battery anodes. Three types of low cost commercially available carbon materials (graphite, activated carbon and carbon black) have been investigated, and electrodes characterised in terms of surface morphology, surface chemistry, microstructure and electrochemical properties. By using ball milling, CO2 activation and adding suitable carbon conductive additives, nano-graphite-based film electrodes (one meter long and ~ 3 µm thickness) have been fabricated, with excellent ion transport and low electrical resistance (< 1.8 Ω). Specific capacitance of 110 F/g at a scan rate of 100 mV/s in 1 M H2SO4 was achieved. The high rate performance of activated carbon-based electrodes ( ~2 µm thickness) has been enhanced by reducing the contact resistance of electrode/current collector interface and building a well-interconnected and hierachical meso/macro-porous structure. A specific capacitance of over 120 F/g at a scan rate of 600 mV/s or 20 A/g current density in 1 M H2SO4 was achieved. The performance of carbon black-based electrodes (~4 µm thickness) in different electrolytes has been studied in both two- and three-electrode cells. High specific capacitances of 260 F/g at 1 A/g was achieved in 6 M KOH, together with energy and power densities of 21 kW/kg and 18 Wh/kg in 1 M Na2SO4. Finally, graphite-based electrodes for rechargeable lithium-ion batteries have also been fabricated with controlled film thickness from ~ 900 nm to ~ 40 µm and 98% capacity retention of 371 mA/g after 20 cycles. Spray deposition has been demonstrated to have the potential for scalability in the manufacture of carbon-based thin film electrodes with competitive properties.
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Gholipour, Behrad. "Novel chalcogenide optoelectronic and nanophotonic information storage and processing devices." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/341256/.
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This project is focused on the application of new electronic and optical materials. In particular it involves examining the use of chalcogenide thin films as phase change and ion conducting glasses for emerging optoelectronic applications. The ability of this group of materials to easily change their state from glass to crystal has meant that they have been widely used in CD's and DVDs. However, their ability to also conduct electrons and ions, promises novel solutions for next generation logic and memory devices which will take us in the short term beyond the limits of the silicon chip and, into the world of neuromorphic cognitive computing (computers that think and adapt). Additionally, this reversible change in the structure of these thin films allows their utilisation in ultra-high speed optical and optoelectronic switches to power the internet and future computers. Three main goals are pursued within this research. First, next generation phase change (PCRAM) and nano-ionic resistive (ReRAM) memory is pursued for faster, non-volatile high density data storage. Secondly, the design of novel processing elements like next generation logic gates enabling neuromorphic cognitive processing and data storage in one structure based on material properties. Finally, the integration of phase change thin films with metamaterial arrays to produce electro-optic and all optical switches for future photonic computers and communication networks.
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Blair, John Anthony. "Life-cycle cost of a radium storage and processing facility." Master's thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-01262010-020253/.
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Fazlollahi, Farhad. "Dynamic Liquefied Natural Gas (LNG) Processing with Energy Storage Applications." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/5956.
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The cryogenic carbon capture™ (CCC) process provides energy- and cost-efficient carbon capture and can be configured to provide an energy storage system using an open-loop natural gas (NG) refrigeration system, which is called energy storing cryogenic carbon capture (CCC-ES™). This investigation focuses on the transient operation and especially on the dynamic response of this energy storage system and explores its efficiency, effectiveness, design, and operation. This investigation included four tasks.The first task explores the steady-state design of four different natural gas liquefaction processes simulated by Aspen HYSYS. These processes differ from traditional LNG process in that the CCC process vaporizes the LNG and the cold vapors return through the LNG heat exchangers, exchanging sensible heat with the incoming flows. The comparisons include costs and energy performance with individually optimized processes, each operating at three operating conditions: energy storage, energy recovery, and balanced operation. The second task examines steady-state and transient models and optimization of natural gas liquefaction using Aspen HYSYS. Steady-state exergy and heat exchanger efficiency analyses characterize the performance of several potential systems. Transient analyses of the optimal steady-state model produced most of the results discussed here. The third task explores transient Aspen HYSYS modeling and optimization of two natural gas liquefaction processes and identifies the rate-limiting process components during load variations. Novel flowrate variations included in this investigation drive transient responses of all units, especially compressors and heat exchangers. Model-predictive controls (MPC) effectively manages such heat exchangers and compares favorably with results using traditional controls. The last task shows how an unprocessed natural gas (NG) pretreatment system can remove more than 90% of the CO2 from NG with CCC technology using Aspen Plus simulations and experimental data. This task shows how CCC-based technology can treat NG streams to prepare them for LNG use. Data from an experimental bench-scale apparatus verify simulation results. Simulated results on carbon (CO2) capture qualitatively and quantitatively agree with experimental results as a function of feedstock properties.
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Jardak, Christine [Verfasser]. "The storage and data processing in wireless sensor networks / Christine Jardak." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/1024800121/34.
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Hastuti, Pudji. "The fate of pirimiphos-methyl during storage and processing of rapeseed." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335918.
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Haque, Sardar Anisul, and University of Lethbridge Faculty of Arts and Science. "A computational study of sparse matrix storage schemes." Thesis, Lethbridge, Alta. : University of Lethbridge, Deptartment of Mathematics and Computer Science, 2008, 2008. http://hdl.handle.net/10133/777.
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The efficiency of linear algebra operations for sparse matrices on modern high performance
computing system is often constrained by the available memory bandwidth. We are interested
in sparse matrices whose sparsity pattern is unknown. In this thesis, we study the
efficiency of major storage schemes of sparse matrices during multiplication with dense
vector. A proper reordering of columns or rows usually results in reduced memory traffic
due to the improved data reuse. This thesis also proposes an efficient column ordering
algorithm based on binary reflected gray code. Computational experiments show that this
ordering results in increased performance in computing the product of a sparse matrix with
a dense vector.xi, 76 leaves : ill. ; 29 cm.
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Licona-Nunez, Jorge Estuardo. "M-ary Runlength Limited Coding and Signal Processing for Optical Data Storage." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5195.
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Recent attempts to increase the capacity of the compact disc (CD) and digital versatile disc (DVD) have explored the use of multilevel recording instead of binary recording. Systems
that achieve an increase in capacity of about three times that of conventional CD have been proposed for production. Marks in these systems are multilevel and fixed-length as opposed to binary and variable length in CD and DVD. The main objective of this work is to evaluate the performance of multilevel ($M$-ary) runlength-limited (RLL) coded sequences in optical data storage.
First, the waterfilling capacity of a multilevel optical recording channel ($M$-ary ORC) is derived and evaluated. This provides insight into
the achievable user bit densities, as well as a theoretical limit against which simulated systems can be compared.
Then, we evaluate the performance of RLL codes
on the $M$-ary ORC. A new channel model that includes the runlength constraint in the transmitted signal is used. We compare the performance of specific RLL codes, namely $M$-ary permutation codes, to that of real systems using multilevel fixed-length marks for recording and the theoretical limits. The Viterbi detector is used to estimate the original recorded symbols from the readout signal.
Then, error correction is used to reduce the symbol error probability. We use a combined ECC/RLL code for phrase encoding. We evaluate the use of trellis coded modulation (TCM) for amplitude encoding. The detection of the readout signal is also studied. A post-processing algorithm for the Viterbi detector is introduced,
which ensures that the detected word satisfies the code constraints. Specifying the codes and detector for the $M$-ary ORC gives a complete
system whose performance can be compared to that of the recently developed systems found in the literature and the theoretical limits calculated in this research.
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Qureshi, Jawwad Ashraf. "3D Processing of Seismic Data from the Ketzin CO2 Storage Site, Germany." Thesis, Uppsala universitet, Geofysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-199583.
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The accumulation of CO2 in the atmosphere is considered to be the main reason for the global warming effect. The emissions can be reduced substantially by capturing and storing the CO2. The CO2SINK project was Europe’s first onshore project for the geological storage and monitoring of CO2. This project started operation near the town of Ketzin, Germany in the North East German basin in April 2004 and has continued as the CO2MAN project since April 2010. The main focus of the project was to develop the basis for Carbon Capture and Storage techniques by injecting CO2 and monitoring of CO2 in a saline aquifer in order to develop confidence for future geological storage of CO2 in Europe. In September 2004, a pilot seismic survey was performed in order to determine the necessary parameters for the conduction of a later 3D baseline seismic survey[i]. The pilot survey was performed along two perpendicular profiles near to the CO2 injection site. Pseudo 3D and 2D reflection seismic data were acquired. The results from 2D processing of the data contributed to planning of the 3D baseline survey. In this study the pseudo 3D data from the pilot seismic reflection survey is used to perform 3D processing for the first time. A significant part of the study is the correlation of results with the 3D baseline seismic survey and borehole data. All significant horizons, possible faults and traces of remnant gas were identified. Correlation with the 3D baseline, integration with the borehole data and time/depth contour maps showed good agreement with the 3D baseline survey and well log data. Low fold data, acquisition geometry, time shifts and source generated noise produces severe distortion in the data. Due to these limitations it was difficult to obtain good quality images. Careful processing that involved static corrections and more accurate velocity analysis were the key steps for successful imaging. These results were combined with bore-hole information for an integrated interpretation.
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Nackerman, Colleen Clare. "Storage Stability of Polyglutamyl 5-Methyltetrahydrofolate in Broccoli After High-Pressure Processing." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397731474.
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Estep, Gregory Dale. "The influence of extrusion processing and formulation on form-stable phase change material." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Thesis/Summer2010/g_estep_062110.pdf.
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Thesis (M.S. in civil engineering)--Washington State University, August 2010.Title from PDF title page (viewed on July 28, 2010). "Department of Civil and Environmental Engineering." Includes bibliographical references (p. 24-26).
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Cenek, Martin. "Information Processing in Two-Dimensional Cellular Automata." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/275.
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Cellular automata (CA) have been widely used as idealized models of spatially-extended dynamical systems and as models of massively parallel distributed computation devices. Despite their wide range of applications and the fact that CA are capable of universal computation (under particular constraints), the full potential of these models is unrealized to-date. This is for two reasons: (1) the absence of a programming paradigm to control these models to solve a given problem and (2) the lack of understanding of how these models compute a given task. This work addresses the notion of computation in two-dimensional cellular automata. Solutions using a decentralized parallel model of computation require information processing on a global level. CA have been used to solve the so-called density (or majority) classification task that requires a system-wide coordination of cells. To better understand and challenge the ability of CA to solve problems, I define, solve, and analyze novel tasks that require solutions with global information processing mechanisms. The ability of CA to perform parallel, collective computation is attributed to the complex pattern-forming system behavior. I further develop the computational mechanics framework to study the mechanism of collective computation in two-dimensional cellular automata. I define several approaches to automatically identify the spatiotemporal structures with information content. Finally, I demonstrate why an accurate model of information processing in two-dimensional cellular automata cannot be constructed from the space-time behavior of these structures.
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Kida, Luis Sergio. "Associative processing implemented with content-addressable memories." PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4176.
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The associative processing model provides an alternative solution to the von Neumann bottleneck. The memory of an associative computer takes some of the responsibility for processing. Only intermediate results are exchanged between memory and processor. This greatly reduces the amount of communication between them. Content-addressable memories are one implementation of memory for this computational model. Associative computers implemented with CAMs have reported performance improvements of three orders of magnitude, which is equivalent to the performance of the same application running in a conventional computer with clock frequencies of the order of GHz. Among the benefits of content-addressable memories to the computer system are: 1) it is simpler to parallelize algorithms and implement concurrency; 2) the synchronization cost for parallel processing is lower, which enables the use of small grain parallelism; 3) it can improve the performance in non-numeric applications that are known to have low performance in conventional computers; 4) it provides a trade off between integration density and clock frequencies to achieve the same performance that is not available in RAM 5) matches well to current and future technologies due to the trade off between integration and clock frequency; 6) it attacks the von Neumann bottleneck by reducing the requirements on the communication bandwidth between processor and memory.
In this thesis, the role of CAMs in associative processing is analyzed, reaching the conclusion that to implement these characteristics the CAM must be able to filter the data transferred to the processor, provide explicit support for parallelism and data structures, support non-numeric applications, and execute logical operations. The characteristics and architecture of a content-addressable memory integrated circuit are presented along with an application with estimated performance improvement of over three orders of magnitude.
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Friedmann, Arnon A. "Measurements, characterization, and system design for digital storage /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9732719.
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Martello, Rosanna. "Cloud storage and processing of automotive Lithium-ion batteries data for RUL prediction." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
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Lithium-ion batteries are the ideal choice for electric and hybrid vehicles, but the high cost and the relatively short life represent an open issue for automotive industries. For this reason, the estimation of battery Remaining Useful Life (RUL) and the State of Health (SoH) are primary goals in the automotive sector. Cloud computing provides all the resources necessary to store, process and analyze all sensor data coming from connected vehicles in order to develop Predictive Maintenance tasks. This project describes the work done during my internship at FEV Italia s.r.l. The aims were designing an architecture for managing the data coming from a vehicle fleet and developing algorithms able to predict the SoH and the RUL of Lithium-ion batteries. The designed architecture is based on three Amazon Web Services: Amazon Elastic Compute Cloud, Amazon Simple Storage Service and Amazon Relational Database Service. After data processing and the feature extraction, the RUL and SoH estimations are performed by training two Neural Networks.
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Barsch, Robert. "Web-based technology for storage and processing of multi-component data in seismology." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-110434.
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Bowler, I. "Digital techniques in the storage and processing of audio waveforms for music synthesis." Thesis, Bucks New University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373583.
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Wilkin, Jonathan. "The effects of storage and processing on the properties of Arachis hypogeae (peanut)." Thesis, Cardiff Metropolitan University, 2013. http://hdl.handle.net/10369/4742.
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The project was part of a Knowledge Transfer Partnership between Sunscoop Products Ltd. and the University of Wales Institute, Cardiff. The processing parameters of (dry roasting) peanuts were mapped and improvements made, increasing product throughput and energy efficiency. A cross sample of peanuts were compared for their ash, moisture,lipid, protein and carbohydrate, only protein and carbohydrate showed significant differences. Free amino groups and reducing sugars were also compared, country of origin and size of peanut showed significant differences, and correlations were observed between development of colour during heat processing and reduction in the content of free amino groups and reducing sugars. High oleic peanuts (HOP) showed higher oxidative stability than conventional peanuts (CP) in both nibbed (<2mm3 pieces) and whole kernels. Temperature and processing format influenced the oxidative stability of both varieties, more than the addition of nitrogen to the packaging. Antioxidant assays correlated with the rate of lipid oxidation, where antioxidant levels decreased during storage and peroxide value increased. Rates of tocopherol oxidation followed those of previous reported data, except α-tocopherol levels increased in CP whole kernels during 7 weeks, no other increases were observed. The characterisation of oil bodies from two varieties of peanut, HOP and CP, showed small differences in the particle size of the oil bodies and zeta potential. Significant differences were observed between the protein contents, and SDS-PAGE showed higher concentrations of high molecular weight proteins in HOP oil bodies. CP showed higher amounts of α-tocopherols than HOP and CP showed higher concentrations of tocopherols in the oil bodies rather than the extracted oil. In vivo cross sections of peanuts indicated some body stability during processing.
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Tavakoli-Keshe, R. "Quantifying the impact of the physical environment during processing and storage of biopharmaceuticals." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1434404/.
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As more complex biotherapeutics are produced, the numbers of antibodies exhibiting aggregation phenomenon has increased greatly. It is therefore of growing importance to understand the products and origin of these phenomena and to be able to select candidates that show the greatest stability. The purpose of this work was to assess different methods for determining protein stability and the aspects of stability they measure, analysing the different aggregate species produced to offer a platform solution when dealing with different aggregate phenomenon during process development. The effect of reversible self association (RSA) on the purification of a product was evaluated and shown to only critically effect the operation of viral filtration steps in a typical bioprocess through blockage of filter pores. A custom made, rotating disc, interfacial shear device was evaluated along with thermal, spectroscopic and molecular modelling methods for their ability to determine the relative stabilities of antibodies to aggregation. A capillary interfacial shear device with 10 fold reduced volume was designed and tested, showing comparability of monomer loss in the capillary with the coefficient of monomer decay in the disc device. This surface related damage was further studied by comparison to thermal methods with a range of known modifications to IgG structures, using modelling techniques to indicate aspects of protein structure key to loss of stability. The interfacial shear device provides an orthogonal measurement related to modification of exposed protein residues whereas thermal techniques trend with intramolecular stability. It was also concluded that for full characterisation of an aggregate profile SE-HPLC, Nanosight and Microflow Imaging should be used to enable capture of the entire size range of aggregate species from 10nm to 100μm. The work highlights the future prominence of molecular modelling techniques as part of a fully integrated aggregate mitigating solution to determine aggregation hot spots.
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Trikusuma, Mariana Trikusuma. "Impact of Processing and Storage to The Flavor Profile of Pea Protein Beverages." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1531495328317918.
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Pan, Lu. "Coding and Signal Processing Techniques for High Efficiency Data Storage and Transmission Systems." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/293753.
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Generally speaking, a communication channel refers to a medium through which an information-bearing signal is corrupted by noise and distortion. A communication channel may result from data storage over time or data transmission through space. A primary task for communication engineers is to mathematically characterize the channel to facilitate the design of appropriate detection and coding systems. In this dissertation, two different channel modeling challenges for ultra-high density magnetic storage are investigated: two-dimensional magnetic recording (TDMR) and bit-patterned magnetic recording (BPMR). In the case of TDMR, we characterize the error mechanisms during the write/read process of data on a TDMR medium by a finite-state machine, and then design a state-based detector that provides soft decisions for use by an outer decoder. In the case of BPMR, we employ an insertion/deletion (I/D) model. We propose a LDPC-CRC product coding scheme that enables the error detection without the involvement of Marker codes specifically designed for an I/D channel. We also propose a generalized Gilbert-Elliott (GE) channel to approximate the I/D channel in the sense of an equivalent I/D event rate. A lower bound of the channel capacity for the BPMR channel is derived, which supports our claim that commonly used error-correction codes are effective on the I/D channel under the assumption that I/D events are limited to a finite length. Another channel model we investigated is perpendicular magnetic recording model. Advanced signal processing for the pattern-dependent-noise-predictive channel detectors is our focus. Specifically, we propose an adaptive scheme for a hardware design that reduces the complexity of the detector and the truncation/saturation error caused by a fix-point representation of values in the detector. Lastly, we designed a sequence detector for compressively sampled Bluetooth signals, thus allowing data recovery via sub-Nyquist sampling. This detector skips the conventional step of reconstructing the original signal from compressive samples prior to detection. We also propose an adaptive design of the sampling matrix, which almost achieves Nyquist sampling performance with a relatively high compression ratio. Additionally, this adaptive scheme can automatically choose an appropriate compression ratio as a function of E(b)/N₀ without explicit knowledge of it.
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Tauber, Markus. "Autonomic management in a distributed storage system." Thesis, St Andrews, 2010. http://hdl.handle.net/10023/926.
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Eckart, J. Dana. "Garbage collection for functional languages in a distributed system." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/8159.
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Iancu, Ovidiu Dan. "The role of timing in shaping information processing in neural systems /." Full text open access at:, 2008. http://content.ohsu.edu/u?/etd,659.
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Munishwar, Vikram P. "Storage and indexing issues in sensor networks." Diss., Online access via UMI:, 2006.
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Li, Xiaodong. "RDSS ; a reliable and efficient distributed storage system." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1103127547.
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Esser, John R. "Assessment and reduction of insect infestation of cured fish in South East Asia, with laboratory studies on Chrysomya megacephala (Fab.), a principal causative agent." Thesis, Durham University, 1988. http://etheses.dur.ac.uk/6592/.
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A survey of cured fish establishments in 5 countries of South East Asia, revealed that cured fish is a nutritionally and economically important commodity in the region and that insect infestation, in particular blowfly infestation during processing and dermestid beetle infestation during storage, are major causes of losses in cured fish. Many processors have responded by illegally applying household and agricultural insecticides to their fish. Field investigations in Indonesia and Thailand, identified Chrysomya megacephala (Fab.) as the most widespread cause of infestation during processing. Lucilia caprina (Wied.) was also a common cause of infestation. Dermestes maculatus (Degeer), D. carnivorus (Fab.), D. ater (Degeer) and Piophila casei (L.), were the most common causes of infestation during storage. These species were able to tolerate the relatively high salt concentrations of the processed fish. Field infestation reduction trials, demonstrated that salting the fish for an extended period failed to provide protection against insect infestation. Guarding the salting tank with a closely fitting lid, prevented blowfly infestation during salting. Flyscreens were found to reduce blowfly infestation during drying, but the design used, presented practical difficulties and was not acceptable to the processor. The pyrethroid insecticide Fastac (alphacypermethrin), prevented blowfly infestation during processing at concentrations as low as 0.00.3% and had a marked repellent effect against blowflies at a concentration of 0.001%. Fastac, applied at a concentration of 0.006%, protected fish against dermestid beetle infestation and damage. Fastac residues in fish treated with a 0.006% dip decreased to less than 2 rag/kg after drying and 1 week's storage. The pyrethroid insecticide deltamethrin, prevented insect infestation during processing and storage, when applied as a 0.003% dip before drying. The FAO/WHO approved insecticide piriraiphos-methyl, reduced blowfly infestation and prevented damage during processing and reduced dermestid beetle infestation during storage, when applied as a 0.03% dip before drying. This treatment resulted in residues, after processing, that were within the FAO/WHO maximum residue limit of 10 mg/kg.Spray applications of pirimiphos-methyl, at dosages of 5-20 mg/kg and deltaraethrin, at dosages of 1-3 mg/kg, were effective in reducing dermestid beetle infestation of smoked fish during storage. Laboratory investigations demonstrated that C. megacephala produced similar numbers of male and female offspring and that there was no difference between the mortalities of the 2 sexes. Female flies greatly outnumbered male flies at the processing site. Mean lifespans of C. megacephala cage populations ranged from 47-54 days and the maximum survival time ranged from 80-98 days. C. megacephala eggs matured within 3 weeks of adult emergence and the mean egg count for the adult female flies was 221.The presence of C. megacephala eggs on fish, stimulated oviposition by C. megacephala and freshly laid eggs were found to have a higher stimulatory effect than eggs which had been previously boiled. Fish being salted exerted a marked, differential attractive effect on gravid, female flies. When presented with fish of a range of salt concentrations, C. megacephala preferentially oviposited on the fish with the lowest salt concentration. In the absence of choice, C. megacephala readily oviposited on fish with relatively high salt contents of 30-40% (dwb). A feeding medium salt content of 33.8% was necessary to significantly reduce larval growth rate and salt contents in excess of 39.5% were necessary to obtain high larval mortalities. Salt contents of up to 39.5% had no effect on pupal mortality.
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Kovvuri, Prem. "Investigation of Different Video Compression Schemes Using Neural Networks." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/320.
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Image/Video compression has great significance in the communication of motion pictures and still images. The need for compression has resulted in the development of various techniques including transform coding, vector quantization and neural networks. this thesis neural network based methods are investigated to achieve good compression ratios while maintaining the image quality. Parts of this investigation include motion detection, and weight retraining. An adaptive technique is employed to improve the video frame quality for a given compression ratio by frequently updating the weights obtained from training. More specifically, weight retraining is performed only when the error exceeds a given threshold value. Image quality is measured objectively, using the peak signal-to-noise ratio versus performance measure. Results show the improved performance of the proposed architecture compared to existing approaches. The proposed method is implemented in MATLAB and the results obtained such as compression ratio versus signalto- noise ratio are presented.
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Gregory, Michael W. (Michael Walter). "Interrelational Laboratory Information System for Data Storage and Retrieval." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc935708/.
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The necessity for a functional user friendly laboratory data management program has become evident as the quantity of information required for modern scientific research has increased to to titanic proportions. The required union of strong computer power, ease of operation, and adaptability have until recently been outside the realm of most research laboratories. Previous systems, in addition to their high cost, are necessarily complex and require software experts in order to effect any changes that the end user might deem necessary. This study examines the Apple Macintosh computer program Hypercard as an interactive laboratory information system that is user-friendly, cost effective, and adaptable to the changing demands within a modern molecular or microbiology.
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Penny, William Douglas. "The storage, training and generalization properties of multi-layer logical neural networks." Thesis, Brunel University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.331996.
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GUPTA, ROCKENDRA. "Pressure Assisted Thermal Processing: Tomato Carotenoid Stability during Processing and Storage and Feasibility of Using Chemical Markers for Evaluating Process Uniformity." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293632615.
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Higashino, Satoru. "Study on signal processing and coding techniques for high density optical information storage channels." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/135949.
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Mohindra, Ajay. "Issues in the design of distributed shared memory systems." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/9123.
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