Tesis sobre el tema "Processing"
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Alley, Maria M. "Investigating Processing in Processing Instruction". The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1308319509.
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Bibby, Geoffrey Thomas. "Digital image processing using parallel processing techniques". Thesis, Liverpool John Moores University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304539.
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Kammoun, Abderrahmen. "Enhancing Stream Processing and Complex Event Processing Systems". Thesis, Lyon, 2019. http://www.theses.fr/2019LYSES012.
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Alors que de plus en plus d'objets et d'appareils sensoriels connectés font partie de notre vie quotidienne, la masse d'informations circulant à grande vitesse ne cesse d'augmenter. Cette énorme quantité de données produites à des débits élevés exige une compréhension rapide pour être utile dans divers domaines d'activité telles que l'internet des objets, la santé, la gestion de l'énergie, etc. Les techniques traditionnelles de stockage et de traitement de données se sont révélées inefficaces ou inadaptables pour gérer ce flux de données. Cette thèse a pour objectif de proposer des solutions optimales à deux problèmes de recherche sur la gestion de flux de données. La première concerne l’optimisation de la résolution de requêtes continues complexes par les systèmes de détection d'événements complexes (CEP). La seconde aux problèmes liées à la prédiction des événement complexes fondée sur l’apprentissage de l’historique du système. Premièrement, nous avons proposé un modèle de recalcul pour le traitement de requêtes complexes, basé sur une indexation multidimensionnelle et des algorithmes de jointures optimisés. Deuxièmement, nous avons conçu un CEP prédictif qui utilise des informations historiques pour prédire des événements complexes futurs. Pour utiliser efficacement l'information historique, nous utilisons un espace de séquences historiques à N dimensions. Par conséquent, la prédiction peut être effectuée en répondant aux requêtes d’intervalles sur cet espace de séquences historiques. La pertinence des résultats obtenus, notamment par l'application de nos algorithmes et approches lors de challenges internationaux démontre la viabilité des méthodes que nous proposonsAs more and more connected objects and sensory devices are becoming part of our daily lives, the sea of high-velocity information flow is growing. This massive amount of data produced at high rates requires rapid insight to be useful in various applications such as the Internet of Things, health care, energy management, etc. Traditional data storage and processing techniques are proven inefficient. This gives rise to Data Stream Management and Complex Event Processing (CEP) systems.This thesis aims to provide optimal solutions for complex and proactive queries. Our proposed techniques, in addition to CPU and memory efficiency, enhance the capabilities of existing CEP systems by adding predictive feature through real-time learning. The main contributions of this thesis are as follows:We proposed various techniques to reduce the CPU and memory requirements of expensive queries. These operators result in exponential complexity both in terms of CPU and memory. Our proposed recomputation and heuristic-based algorithm reduce the costs of these operators. These optimizations are based on enabling efficient multidimensional indexing using space-filling curves and by clustering events into batches to reduce the cost of pair-wise joins.We designed a novel predictive CEP system that employs historical information to predict future complex events. We proposed a compressed index structure, range query processing techniques and an approximate summarizing technique over the historical space.The applicability of our techniques over the real-world problems presented has produced further customize-able solutions that demonstrate the viability of our proposed methods
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TAMADLA, SAID. "Sentence Processing". Thesis, Högskolan Dalarna, Engelska, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:du-2898.
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Radwan, Muhammad Nabil. "Rapeseed processing". Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5131.
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Sahandi, Reza. "Image Processing". Thesis, University of Bradford, 1987. http://eprints.bournemouth.ac.uk/9884/.
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Turner, Julia J. "Processing Nature". VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4697.
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In my artwork, I merge nature with typography. I use macro-level photography to capture details of nature, such as the pistils of a flower or the sensory hairs of an insect. I print enlargements and transfer these photos onto pages of poetic text about nature, or collage them onto canvas. Once transferred, I use multiple media to alter and enhance features of the photos. I intentionally obscure much of the text which allows me to place focus on the overall layout and design. The arrangement of lines of text and spacing of words is used to create a visual rhythm. The poetic script acts as a foundation or platform for presenting the often unnoticed elements of nature.
In developing a piece, I use a wet transfer which allows me to obtain subtle textures and imperfections that occur from the process. To add visual interest and complexity, I continue to manipulate the surfaces with various media and marks. This approach helps to create a blending of text and image. Similar to reading a poem or observing nature, I want to engage the viewer in an experience of visual poetry.
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Pickering, Martin J. "Processing dependencies". Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/20111.
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The thesis assumes that a theory of language should be evaluated with reference to both linguistic and psycholinguistic evidence, and that the processor makes use of the rules of the grammar directly. It contends that most current linguistic theories are not adequate in this respect, and concentrates on one major issue, that these theories are unable to represent the fact that we can begin an interpretation of an utterance before it is completed. It is argued that this is due to the assumption that sentences should be represented by the devices of phrase structure grammar which includes rigid, non-overlapping constituents. It suggests that these should be replaced by a flexible notion of constituency, based on a generalized notion of dependency, which is called dependency constituency. The thesis then shows how this notion can be represented in the grammatical framework known as the Lambek Calculus, by means of a very simple restriction on the permitted opeations. It then shows how this allows a new characterization of strings that can be coordinated, which it is argued captures the relevant data better than competing theories. The thesis then proposes an account of human sentence processing based on dependency constituency. It the applies the account of dependency constituency to unbounded dependencies, and suggests that the treatment is more parsimonious than alternatives based on phrase structure grammar that make use of otherwise unmotivated mechanisms such as empty categories. It shows how experimental evidence that is usually interpreted in terms of theories using empty categories can be reinterpreted in terms that do not use these devices. But the next chapter goes further, and shows how it is possible to distinguish between a processing theory with empty categories and a theory without empty categories. It is claimed that the evidence supports a theory without these devices, and so a grammatical theory that bears any relation to sentence processing should avoid their postulation.
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Ferrigno, Andrea Ann. "Processing information". Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2491.
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Rouse, Helen. "Perceptual processing in autism : an investigation of face processing". Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289694.
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Kwan, Ching Chung. "Digital signal processing techniques for on-board processing satellites". Thesis, University of Surrey, 1990. http://epubs.surrey.ac.uk/754893/.
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In on-board processing satellite systems in which FDMA/SCPC access schemes are employed. transmultiplexers are required for the frequency demultiplexing of the SCPC signals. Digital techniques for the implementation of the transmultiplexer for such application were examined in this project. The signal processing in the transmultiplexer operations involved many parameters which could be optimized in order to reduce the hardware complexity whilst satisfying the level of performance required of the system. An approach for the assessment of the relationship between the various parameters and the system performance was devised. which allowed hardware requirement of practical system specifications to be estimated. For systems involving signals of different bandwidths a more flexible implementation of the trans multiplexer is required and two computationally efficient methods. the DFT convolution and analysis/synthesis filter bank. were investigated. These methods gave greater flexibility to the input frequency plan of the transmultiplexer. at the expense of increased computational requirements. Filters were then designed to exploit specific properties of the flexible transmultiplexer methods. resulting in considerable improvement in their efficiencies. Hardware implementation of the flexible transmultiplexer was considered and an efficient multi-processor architecture in combination with parallel processing software algorithms for the signal processing operations were designed. Finally. an experimental model of the payload for a land-mobile satellite system proposal. T -SAT. was constructed using general-purpose digital signal processors and the merits of the on-board processing architecture was demonstrated.
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Ali-Bakhshian, Mohammad. "Digital processing of analog information adopting time-mode signal processing". Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114237.
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As CMOS technologies advance to 22-nm dimensions and below, constructing analog circuits in such advanced processes suffers many limitations, such as reduced signal swings, sensitivity to thermal noise effects, loss of accurate switching functions, to name just a few. Time-Mode Signal Processing (TMSP) is a technique that is believed to be well suited for solving many of these challenges. It can be defined as the detection, storage, and manipulation of sampled analog information using time-mode variables. One of the important advantages of TMSP is the ability to realize analog functions using digital logic structures. This technique has a long history of application in electronics; however, due to lack of some fundamental functions, the use of TM variables has been mostly limited to intermediate stage processing and it has been always associated with voltage/current-to-time and time-to-voltage/current conversion. These conversions necessitate the inclusion of analog blocks that contradict the digital advantage of TMSP. In this thesis, an intensive research has been presented that provides an appropriate foundation for the development of TMSP as a general processing tool. By proposing the new concept of delay interruption, a completely new asynchronous approach for the manipulation of TM variables is suggested. As a direct result of this approach, practical techniques for storage, addition and subtraction of time-mode variables are presented. To Extend the digital implementation of TMSP to a wider range of applications, the comprehensive design of a unity gain dual-path time-to-time integrator (accumulator) is demonstrated. This integrator is then used to implement a digital second-order delta-sigma modulator. Finally, to demonstrate the advantage of TMSP, a very low power and compact tunable interface for capacitive sensors is presented that is composed of a number of delay blocks associated with typical logic gates. All the proposed theories are supported by experimental results and post-layout simulations.The emphasis on the digital construction of the proposed circuits has been the first priority of this thesis. Having the building blocks implemented with a digital structure, provides the feasibility of a simple, synthesizable, and reconfigurable design where affordable circuit calibrations can be adopted to remove the effects of process variations.Les technologies CMOS progressant vers les procédés 22 nm et au delà, la abrication des circuits analogiques dans ces technologies se heurte a de nombreuses limitations. Entre autres limitations on peut citer la réduction d'amplitude des signaux, la sensibilité aux effets du bruit thermique et la perte de fonctions précises de commutation. Le traitement de signal en mode temps (TMSP pour Time-Mode Signal Processing) est une technique que l'on croit être bien adapté pour résoudre un grand nombre de problèmes relatifs a ces limitations. TMSP peut être défini comme la détection, le stockage et la manipulation de l'information analogique échantillonnée en utilisant des quantités de temps comme variables. L'un des avantages importants de TMSP est la capacité à réaliser des fonctions analogiques en utilisant des structures logiques digitales. Cette technique a une longue histoire en terme d'application en électronique. Cependant, en raison du manque de certaines fonctions fondamentales, l'utilisation de variables en mode temps a été limitée à une utilisation comme étape intermédiaire dans le traitement d'un signal et toujours dans le contexte d'une conversion tension/courant-temps et temps-tension/courant. Ces conversions nécessitent l'inclusion de blocs analogiques qui vont a l'encontre de l'avantage numérique des TMSP. Cette thèse fournit un fondement approprié pour le développement de TMSP comme outil général de traitement de signal. En proposant le concept nouveau d'interruption de retard, une toute nouvelle approche asynchrone pour la manipulation de variables en mode temps est suggéré. Comme conséquence directe de cette approche, des techniques pratiques pour le stockage, l'addition et la soustraction de variables en mode temps sont présentées. Pour étendre l'implémentation digitale de TMSP à une large gamme d'applications, la conception d'un intégrateur (accumulateur) à double voie temps- à -temps est démontrée. cet intégrateur est ensuite utilisé pour implémenter un modulateur delta-sigma de second ordre.Enfin, pour démontrer l'avantage de TMSP, une Interface de très basse puissance, compacte et réglable pour capteurs capacitifs est présenté. Cette interface est composé d'un certain nombre de blocs de retard associés à des portes logiques typiques. Toutes les théories proposées sont soutenues par des résultats expérimentaux et des simulations post-layout. L'implémentation digitale des circuits proposés a été la première priorité de cette thèse. En effet, une implémentation des bloc avec des structures digitales permet des conceptions simples, synthétisable et reconfigurables où des circuits de calibration très abordables peuvent être adoptées pour éliminer les effets des variations de process.
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de, Haan E. H. F. "Disorders of face processing : an investigation of implicit face processing". Thesis, Lancaster University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233572.
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Weywadt, Christina R. "Lateralization of pragmatic processsing : a visual half-field investigation of speech act processing". Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1292992.
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The current study utilized a priming paradigm in conjunction with a visual halffield presentation to determine if the right hemisphere contributes to pragmatic processing. Primes included conversational dialogues that either performed a speech act or did not. The targets identified the speech act and were presented to one of the two visual fields (lvf-RH or rvf-LH). It was hypothesized that the right visual field-left hemisphere (rvf-LH) would be more accurate and faster at identifying targets regardless of the script type that preceded it and the left visual field-right hemisphere (lvf-RH) would be significantly more accurate and faster at identifying targets when preceded by a script that performed the identified speech act. Results indicated that the lvf-RH was more accurate and faster at identifying a target regardless of the type of script that preceded it, while the rvf-LH was differentially affected by the type of script.Department of Psychological Science
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Poggiali, Dario. "Parallel geometry processing". Zürich : ETH, Eidgenössische Technische Hochschule Zürich, cgl Computer Graphics Laboratory, 2008. http://e-collection.ethbib.ethz.ch/show?type=dipl&nr=393.
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Papadopoulos, Stavros. "Authenticated query processing /". View abstract or full-text, 2010. http://library.ust.hk/cgi/db/thesis.pl?CSED%202010%20PAPADO.
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Ouellet, Michel. "Image processing architectures". Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/5068.
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Yanggratoke, Rerngvit. "GPU Network Processing". Thesis, KTH, Telekommunikationssystem, TSLab, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103694.
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Networking technology is connecting more and more people around the world. It has become an essential part of our daily life. For this connectivity to be seamless, networks need to be fast. Nonetheless, rapid growth in network traffic and variety of communication protocols overwhelms the Central Processing Units (CPUs) processing packets in the networks. Existing solutions to this problem such as ASIC, FPGA, NPU, and TOE are not cost effective and easy to manage because they require special hardware and custom configurations. This thesis approaches the problem differently by offloading the network processing to off-the-shelf Graphic Processing Units (GPUs). The thesis's primary goal is to find out how the GPUs should be used for the offloading. The thesis follows the case study approach and the selected case studies are layer 2 Bloom filter forwarding and flow lookup in Openflow switch. Implementation alternatives and evaluation methodology are proposed for both of the case studies. Then, the prototype implementation for comparing between traditional CPU-only and GPU-offloading approach is developed and evaluated. The primary findings from this work are criteria of network processing functions suitable for GPU offloading and tradeoffs involved. The criteria are no inter-packet dependency, similar processing flows for all packets, and within-packet parallel processing opportunity. This offloading trades higher latency and memory consumption for higher throughput.Nätverksteknik ansluter fler och fler människor runt om i världen. Det har blivit en viktig del av vårt dagliga liv. För att denna anslutning skall vara sömlös, måste nätet vara snabbt. Den snabba tillväxten i nätverkstrafiken och olika kommunikationsprotokoll sätter stora krav på processorer som hanterar all trafik. Befintliga lösningar på detta problem, t.ex. ASIC, FPGA, NPU, och TOE är varken kostnadseffektivt eller lätta att hantera, eftersom de kräver speciell hårdvara och anpassade konfigurationer. Denna avhandling angriper problemet på ett annat sätt genom att avlasta nätverks processningen till grafikprocessorer som sitter i vanliga pc-grafikkort. Avhandlingen främsta mål är att ta reda på hur GPU bör användas för detta. Avhandlingen följer fallstudie modell och de valda fallen är lager 2 Bloom filter forwardering och ``flow lookup'' i Openflow switch. Implementerings alternativ och utvärderingsmetodik föreslås för både fallstudierna. Sedan utvecklas och utvärderas en prototyp för att jämföra mellan traditionell CPU- och GPU-offload. Det primära resultatet från detta arbete utgör kriterier för nätvärksprocessfunktioner lämpade för GPU offload och vilka kompromisser som måste göras. Kriterier är inget inter-paket beroende, liknande processflöde för alla paket. och möjlighet att köra fler processer på ett paket paralellt. GPU offloading ger ökad fördröjning och minneskonsumption till förmån för högre troughput.
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Bourne, John D. A. "Processing digital images". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq22757.pdf.
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Searle, Stephen. "Matched doppler processing /". Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09AS/09ass439.pdf.
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Holt, C. M. "Quasi-parallel processing". Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375244.
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Ellis, David A. "Everyday time processing". Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4641/.
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This thesis seeks to explore everyday aspects of time. Traditionally, the psychological study of time has been defined as the processes by which a person adapts to and represents temporal properties in order to synchronise external events. On the other hand, a good understanding of time is also vital when it comes to occupational and social organisation. How should time be considered across psychology remains an open question. While time perception is an established field in cognitive psychology, previous research has often focussed on either the perception of very short time intervals (milliseconds), or psychobiological effects of celestial time cycles (e.g. sleep/wake cycle or seasonal affective disorder). However, there remain several other aspects of time that while categorically different are no less important for example, 'mental time travel' or chronesthesia is the ability to mentally project into the future or past. While these phenomena are well acknowledged, it is only in the last few decades that research has started to document other 'higher level' cognitive processes that exist beyond traditional psychophysical constructs. By combining a range of experimental and secondary data analysis methodologies, this thesis examines the relationship between everyday units of time and systematic changes in behaviour across socially derived time cycles (i.e. the calendar week and the working day). It also considers the effects of individual differences on aspects of interpersonal organisation (e.g. punctuality and watch wearing). The main findings indicate that research into psychological time can and should go beyond minutes and seconds as present-day cognitive models are inadequate when it comes to accounting for everyday time processing errors. In addition, understanding the mechanisms behind higher-level timing processes may only become apparent if the topic makes a concentrated effort to become integrated with day-to-day cognition and behaviour. The results also have several applied implications including practical recommendations for optimising appointment systems in the National Health Service. Finally, these findings are discussed in relation to the ongoing debate regarding where psychological time research should focus future efforts if it is to maintain its current momentum from a theoretical and applied perspective.
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Gardiner, Bryan. "Hexagonal image processing". Thesis, University of Ulster, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535794.
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Vorster, Willem Johannes Jacobus. "Spray quench processing". Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531785.
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Hu, Nan. "SECURE IMAGE PROCESSING". UKnowledge, 2007. http://uknowledge.uky.edu/gradschool_theses/448.
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In todays heterogeneous network environment, there is a growing demand for distrusted parties to jointly execute distributed algorithms on private data whose secrecy needed to be safeguarded. Platforms that support such computation on image processing purposes are called secure image processing protocols. In this thesis, we propose a new security model, called quasi information theoretic (QIT) security. Under the proposed model efficient protocols on two basic image processing algorithms linear filtering and thresholding are developed. For both problems we consider two situations: 1) only two parties are involved where one holds the data and the other possesses the processing algorithm; 2) an additional non-colluding third party exists. Experiments show that our proposed protocols improved the computational time significantly compared with the classical cryptographical couterparts as well as providing reasonable amount of security as proved in the thesis
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Stephens, S. "Algebraic stream processing". Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639104.
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We identify and analyse the typically higher-order approaches to stream processing in the literature. From this analysis we motivate an alternative approach to the specification of SPSs as STs based on an essentially first-order equational representation. This technique is called Cartesian form specification. More specifically, while STs are properly second-order objects we show that using Cartesian forms, the second-order models needed to formalise STs are so weak that we may use and develop well-understood first-order methods from computability theory and mathematical logic to reason about their properties. Indeed, we show that by specifying STs equationally in Cartesian form as primitive recursive functions we have the basis of a new, general purpose and mathematically sound theory of stream processing that emphasises the formal specification and formal verification of STs. The main topics that we address in the development of this theory are as follows. We present a theoretically well-founded general purpose stream processing language ASTRAL (Algebraic Stream TRAnsformer Language) that supports the use of modular specification techniques for full second-order STs. We show how ASTRAL specifications can be given a Cartesian form semantics using the language PREQ that is an equational characterisation of the primitive recursive functions. In more detail, we show that by compiling ASTRAL specifications into an equivalent Cartesian form in PREQ we can use first-order equational logic with induction as a logical calculus to reason about STs. In particular, using this calculus we identify a syntactic class of correctness statements for which the verification of ASTRAL programmes is decidable relative to this calculus. We define an effective algorithm based on term re-writing techniques to implement this calculus and hence to automatically verify a very broad class of STs including conventional hardware devices. Finally, we analyse the properties of this abstract algorithm as a proof assistant and discuss various techniques that have been adopted to develop software tools based on this algorithm.
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Ranjous, Majd. "Lexical ambiguity processing". Thesis, University of Sussex, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549666.
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This thesis examines the processes underlying the interpretation of lexically ambiguous words. Experiments 1, 2 and 3 looked at sentence context effects on the processing of balanced ambiguities. The experiments show clear priming of words related to the meanings of the ambiguous word, but they failed to show any effects of context on meaning activation. Experiments 4 and 5 examined meaning activation when ambiguous words are presented on their own. Of particular interest the experiments examined whether meaning frequency has a major role in the early meaning activation, in other words whether the dominant meaning is activated first. Again the experiments showed significant activation of both meanings of the homograph but there was no evidence that frequency is a major factor in this activation process. Experiments 6 and 7 examined context effects on meaning activation in the form of single word context. Experiment 6 used the same materials as in Experiments 4 and 5while Experiment 7 used a subset of those materials and added new materials. Again, both experiments provided further evidence that both meanings are activated with no significant effects of word-context. Finally, Experiments 8, 9, and 10 investigated the role of subjects' attentive strategy; an important factor in language processing in general, and word recognition and meaning selection in particular. EJ5.periment 8 used materials from Experiment 7 but manipulated the semantic relation in the filler items to focus attention on the semantic relation in the experimental items. Similarly, Experiments 9 and 10 looked at this strategic role but in sentence context rather than word context. Experiment 8 produced results showing that subjects can indeed use this strategy to direct attention to the upcoming target resulting in selective access of the dominant meaning when context biased this meaning. When context biased the subordinate meaning, however, both meanings were accessed. Experiments 9 and 10 produced results showing that subjects can use this strategy but differently. In Experiment 9 there was marginally significant activation for both meanings. When context was manipulated in Experiment 10 both meanings were significantly activated Based on these results, a theoretical account of lexical ambiguity processing is proposed, and the thesis considers its implications for theories of lexical ambiguity and word recognition in general
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Megreya, Ahmed M. "Processing unfamiliar faces". Thesis, University of Glasgow, 2005. http://theses.gla.ac.uk/4202/.
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It is well established that matching unfamiliar faces is highly error prone, even under seemingly optimal conditions. This thesis shows large individual differences in unfamiliar face matching. Across several visual cognition tasks, the best predictor for this variability was recognition of inverted faces, regardless of whether they were familiar or unfamiliar. In stark contrast, there was no relationship between upright familiar and unfamiliar face processing. Moreover, the ability to match faces was unrelated to the ability to reject these faces, unless they were upright familiars. Therefore, the processes involved in upright unfamiliar face processing appeared to be qualitatively similar to those underlying the recognition of inverted familiar and unfamiliar faces, but very different to those responsible for upright familiar face processing. Finally, the presence of a second face severely impaired matching a target person, particularly when they were presented close together. The implications of these findings for the forensic field are discussed.
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Watson, Richard Stewart. "Complex motion processing". Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407066.
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Baklar, Mohammed Adnan. "Processing organic semiconductors". Thesis, Queen Mary, University of London, 2010. http://qmro.qmul.ac.uk/xmlui/handle/123456789/1311.
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In recent years, there has been a considerable interest in organic semiconducting materials due to their potential to enable, amongst other things, low-cost flexible opto-electronic applications, such as large-area integrated circuitry boards, light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Promisingly, improved electronic performance and device structures have been realized with e.g. OLEDs entering the market and organic field-effect transistors (OFETs) reaching the performance of amorphous silicon devices; however, it would be too early to state that the field of organic semiconductors has witnessed the sought-after technological revolution. Initial progress in the field was mostly due to synthetic efforts in the form of enhanced regularity and purity of currently used materials, the creation of new molecular species, etc. In this thesis we show that the advancement of physico-chemical aspects – notably materials processing – and the realisation of increased order and control of the solid state structure is critical to realize the full intrinsic potential that organic semiconductors possess. We first investigated how the bulk charge-transport properties of the liquid-crystalline semiconductor poly(2,5-bis (3-dodecylthiophen-2-yl)thieno[3,2-b]thiophenes) (pBTTT-C12) can be enhanced by annealing in the mesophase. To this end, temperature treatment of a period of hours was necessary to realize good bulk charge transport in the out-of-plane directions. This behaviour is in strong contrast to in-plane charge transport as measured in thin-film field-effect structures, for which it was shown that annealing times of 10 min and less are often sufficient to enhance device performance. Our observation 4 may aid in future to optimize the use of pBTTT polymers in electronic devices, in which good bulk charge transport is required, such as OPVs. In the second part of thesis, we explored ink-jet printing of pBTTT-C12, in order to realize precise deposition of this material into pre-defined structures. In organic electronic applications this can, amongst other things, enable deposition of different semiconductors or reduction of the unwanted conduction pathways that often result in undesirable parasitic ‘cross-talk’, for instance, between pixels in display products. We demonstrate the integration of ink-jet printed transistors into unipolar digital logic gates that display the highest signal gain reported for unipolar-based logic gates. Finally, recognizing that a broad range of conjugated organic species fall in the category of “plastic crystals”, we explored the option to process this class of materials in the solid state. We find that solid-state compression moulding indeed can effectively be applied to a wide spectrum of organic small molecular and polymeric semiconductors without affecting adversely the intrinsic favourable electronic characteristics of these materials. To the contrary, we often observe significantly enhanced [bulk] charge transport and essentially identical field-effect transistor performance when compared with solution- or melt-processed equivalents. We thus illustrate that fabrication of functional organic structures does not necessitate the use of solution processing methods, which often require removal of 99 wt% or more of solvent, or precursor side-products, nor application of cumbersome vapour deposition technologies.
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Lee, Li 1975. "Distributed signal processing". Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86436.
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McCormick, Martin (Martin Steven). "Digital pulse processing". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78468.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 71-74).
This thesis develops an exact approach for processing pulse signals from an integrate-and-fire system directly in the time-domain. Processing is deterministic and built from simple asynchronous finite-state machines that can perform general piecewise-linear operations. The pulses can then be converted back into an analog or fixed-point digital representation through a filter-based reconstruction. Integrate-and-fire is shown to be equivalent to the first-order sigma-delta modulation used in oversampled noise-shaping converters. The encoder circuits are well known and have simple construction using both current and next-generation technologies. Processing in the pulse-domain provides many benefits including: lower area and power consumption, error tolerance, signal serialization and simple conversion for mixed-signal applications. To study these systems, discrete-event simulation software and an FPGA hardware platform are developed. Many applications of pulse-processing are explored including filtering and signal processing, solving differential equations, optimization, the minsum / Viterbi algorithm, and the decoding of low-density parity-check codes (LDPC). These applications often match the performance of ideal continuous-time analog systems but only require simple digital hardware. Keywords: time-encoding, spike processing, neuromorphic engineering, bit-stream, delta-sigma, sigma-delta converters, binary-valued continuous-time, relaxation-oscillators.
by Martin McCormick.
S.M.
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Eldar, Yonina Chana 1973. "Quantum signal processing". Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/16805.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2002.Includes bibliographical references (p. 337-346).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Quantum signal processing (QSP) as formulated in this thesis, borrows from the formalism and principles of quantum mechanics and some of its interesting axioms and constraints, leading to a novel paradigm for signal processing with applications in areas ranging from frame theory, quantization and sampling methods to detection, parameter estimation, covariance shaping and multiuser wireless communication systems. The QSP framework is aimed at developing new or modifying existing signal processing algorithms by drawing a parallel between quantum mechanical measurements and signal processing algorithms, and by exploiting the rich mathematical structure of quantum mechanics, but not requiring a physical implementation based on quantum mechanics. This framework provides a unifying conceptual structure for a variety of traditional processing techniques, and a precise mathematical setting for developing generalizations and extensions of algorithms. Emulating the probabilistic nature of quantum mechanics in the QSP framework gives rise to probabilistic and randomized algorithms. As an example we introduce a probabilistic quantizer and derive its statistical properties. Exploiting the concept of generalized quantum measurements we develop frame-theoretical analogues of various quantum-mechanical concepts and results, as well as new classes of frames including oblique frame expansions, that are then applied to the development of a general framework for sampling in arbitrary spaces. Building upon the problem of optimal quantum measurement design, we develop and discuss applications of optimal methods that construct a set of vectors.
(cont.) We demonstrate that, even for problems without inherent inner product constraints, imposing such constraints in combination with least-squares inner product shaping leads to interesting processing techniques that often exhibit improved performance over traditional methods. In particular, we formulate a new viewpoint toward matched filter detection that leads to the notion of minimum mean-squared error covariance shaping. Using this concept we develop an effective linear estimator for the unknown parameters in a linear model, referred to as the covariance shaping least-squares estimator. Applying this estimator to a multiuser wireless setting, we derive an efficient covariance shaping multiuser receiver for suppressing interference in multiuser communication systems.
by Yonina Chana Eldar.
Ph.D.
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SONG, HYO-JIN. "PROCESSING PHASE TRANS". University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132249697.
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Zhang, Yi. "Blur Image Processing". University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1448384360.
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Lopes, Flávio Leonel Paradinha. "Processing with memristors". Master's thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/7209.
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Mestrado em Engenharia Electrónica e de TelecomunicaçõesEm engenharia procura-se sempre melhorar o produto anterior. Torná-lo mais eficaz, mais rápido, enaltecer a sua funcionalidade. Entretanto chega- -se a um ponto onde o desenvolvimento se torna muito complexo e dispendioso. Chegados a esse ponto é necessário procurar novos métodos para continuar o desenvolvimento desse produto. Numa dessas procuras foi descoberta a realização física de um novo componente electrónico, o memristor. Este novo componente compromete-se a revolucionar o mundo electrónico, pois promete ser usável num leque bastante alargado de aplicações. O memristor promete ser um elemento de memória não volátil, pois consegue fixar o seu valor resistivo mesmo não estando a ser alimentado. Dado que o estado interno de um memristor se traduz num valor resistivo, pensase que um memristor pode ser usado para realizar combinações lineares, em que os coeficientes variam ao longo do tempo, ao invés de serem fixos, como era a única maneira de fazer até agora. Nesta dissertação pretende-se provar que esta aplicação de memristores é possível. Para tal ser provado, é criado o modelo de um memristor ideal, que é utilizado para simular os circuitos que provam se é, ou não, possível implementar a função pretendida. É também desenvolvido um circuito usado para forçar, ou ler, um estado do memristor, sem ser necessária qualquer preocupação com as características físicas deste componente. Após se obter o modelo, são discutidos os resultados obtidos, por forma a comprovar que estes são satisfatórios e que se pode continuar o trabalho. O mesmo processo de validação é usado com o programador. Dado que o modelo e o programador funcionaram como esperado, é possível passar ao ãmago desta dissertação, criando-se o circuito necessário para se provar se é, ou não, possível implementar a operação desejada. Findo este trabalho, conclui-se que os memristores podem, de facto, ser usados para a aplicação pretendida, pelo que se abrem muitas portas para trabalhos futuros, por forma a implementar e testar esta solução em várias aplicações.
In engineering we are always trying to make a product better. Making it faster, more efficient, adding new and better features. Meanwhile we reach a point where that product’s development becomes too complex and expensive. When that point is reached it is necessary to search for new methods to continue the product’s development. In one of those searches the implementation of a new device was found, the memristor’s. This new device promises to revolutionize the electronic’s world, since it is expected to be useful in a wide range of applications. The memristor has potential to be a non-volatile memory element, since it holds its resistive value, even after it is unplugged from a power source. Given that the memristor’s inner state is translated into a resistive value, it is possible to think that memristors can be used to perform linear combinations, where the coefficients will change along the time, between iterations, instead of being fixed, like it was the only way, until now. In this thesis we aim to prove that this memristor’s application is possible. For that to be proven, an ideal memristor model is created, in order to simulate the circuits that will prove, or not, that the application is realizable. A circuit that forces a state, or reads one is also developed, in order to provide an abstraction of the device’s physical characteristics. Right after the model is obtained, we discuss the simulation’s results, in order to decide if we can keep with the work or not. The same approach is used with the programmer. Being that the model and the programmed worked as expected, we will now carry on to the fulcra point of this thesis, hence creating the necessary circuitry in order to prove our point. At the end of this task, we conclude that memristors can actually be used to perform the desired operation. With this being proved lots of works appear, to test and implement the proposed solution in other applications.
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Zhang, Hua 1954. "Practical Parallel Processing". Thesis, University of North Texas, 1996. https://digital.library.unt.edu/ark:/67531/metadc278769/.
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The physical limitations of uniprocessors and the real-time requirements of numerous practical applications have made parallel processing an essential technology in military, industry and scientific research. In this dissertation, we investigate parallelizations of three practical applications using three parallel machine models. The algorithms are:
Finitely inductive (FI) sequence processing is a pattern recognition technique used in many fields. We first propose four parallel FI algorithms on the EREW PRAM. The time complexity of the parallel factoring and following by bucket packing is O(sk^2 n/p), and they are optimal under some conditions. The parallel factoring and following by hashing requires O(sk^2 n/p) time when uniform hash functions are used and log(p) ≤ k n/p and pm ≈ n. Their speedup is proportional to the number processors used. For these results, s is the number of levels, k is the size of the antecedents and n is the length of the input sequence and p is the number of processors.
We also describe algorithms for raster/vector conversion based on the scan model to handle block-like connected components of arbitrary geometrical shapes with multi-level nested dough nuts for the IES (image exploitation system). Both the parallel raster-to-vector algorithm and parallel vector-to-raster algorithm require O(log(n2)) or O(log2(n2)) time (depending on the sorting algorithms used) for images of size n2 using p = n2 processors.
Not only is the DWT (discrete wavelet transforms) useful in data compression, but also has it potentials in signal processing, image processing, and graphics. Therefore, it is of great importance to investigate efficient parallelizations of the wavelet transforms. The time complexity of the parallel forward DWT on the parallel virtual machine with linear processor organization is O(((so+s1)mn)/p), where s0 and s1 are the lengths of the filters and p is the number of processors used. The time complexity of the inverse DWT is also O(((so+s1)mn)/p). If the processors are organized as a 2D array with PrawPcol processors, both the interleaved parallel DWT and IDWT have the time complexity of O(((so+s1)mn)/ProwPcol).
We have parallelized three applications and achieved optimality or best-possible performances for each of the three applications over each of the chosen machine models. Future research will involve continued examination of parallel architectures for implementation of practical problems.
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Qiao, Dongjiang. "GaN processing technologies /". Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3071033.
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Pešek, Kryštof. "Processing 1.0 příručka". Master's thesis, Akademie múzických umění v Praze.Filmová a televizní fakulta. Knihovna, 2012. http://www.nusl.cz/ntk/nusl-155993.
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In the filed of theoretical studies, my work consisting of completing the handbook for programming language called Processing. This particular programing language had been constructed during academical research at Massachutches Institute of Technology by its creators Benjamin Fry and Casey Reas. There are already many handbooks available: (i.e.: Casey Reas and Ben Fry, A programming handbook for designers and artist (2007), Ira Greenberg: Processing Creative coding and Computational Art (2007), Daniel Shiffman: Learning Processing: A Beginner's Guide to Programming Images, Animation, and Interaction (2008), Tom Igoe: Making Thinks Talk: Practical Methods for Connecting Physical Objects (2007).), but none of them is in Czech language. The handbook concept should keep the Processing methodological approach; to give an easy access to modern technology to an art and in general non-technical students. With little or without any previous programming experience.
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Brooks, S. R. "Aluminium expansion processing /". Title page, contents and summary only, 1990. http://web4.library.adelaide.edu.au/theses/09ENS/09ensb873.pdf.
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Joshua, Nicole R. "Face processing in schizophrenia : an investigation of configural processing and the relationship with facial emotion processing and neurocognition /". Connect to thesis, 2010. http://repository.unimelb.edu.au/10187/7040.
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Cognitive impairment is a key characteristic of schizophrenia and is a clear predictor of functional outcome. This thesis explores the relationship between cognitive ability relating to social and non-social processing. Schizophrenia patients demonstrate an impaired ability to recognise, label and discriminate emotional expression within the face. The underlying mechanisms behind this social cognitive impairment are not yet fully understood. This thesis explores the notion that a basic perceptual impairment in processing facial information adversely impacts on the perception of more complex information derived from faces, such as emotional expression. Face perception relies on processing the featural characteristics of a face as well as the relationship between these features. Information pertaining to the spatial distances between features is referred to as configural information.A group of schizophrenia patients and healthy control participants completed a battery of tasks that assessed basic neurocognition, facial emotion processing and configural face processing. A model of face processing was proposed and used to systematically pinpoint specific deficits that may contribute to impaired face processing in schizophrenia. The results indicated that schizophrenia patients show impairments on three broad constructs; basic neurocognition, facial emotion processing, and most pertinently, deficits in configural processing. It was revealed that although neurocognitive and face processing both explained a significant proportion of the variance in facial emotion processing, the effect of neurocognition was indirect and mediated by face processing.
To investigate the diagnostic specificity of these findings, a group of bipolar disorder patients was also tested on the task battery. The results indicated that bipolar disorder patients also show social and non-social cognitive impairments, however, not as severe as that demonstrated by the schizophrenia patients. Furthermore, the effect of neurocognitive performance on facial emotion processing appeared more direct for bipolar disorder patients compared to schizophrenia patients. Although deficits in face processing were observable in bipolar, they were not specific to configural processing. Thus, deficits in emotion processing were more associated to neurocognitive ability in bipolar disorder patients, and more associated to configural face processing in schizophrenia patients. The configural processing deficits in schizophrenia are discussed as a lower-order perception problem. In conclusion, the results of this thesis are discussed in terms of their implication for treatment.
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Greene, Andrew. "The mitochondrial processing peptidase regulates PINK1 processing, import, and Parkin recruitment". Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106415.
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Mutations in PTEN-induced kinase 1 (PINK1) cause recessively-inherited Parkinson's disease (PD), a neurodegenerative disorder thought to involve mitochondrial defects. The PINK1 protein is imported into healthy mitochondria and rapidly degraded, but accumulates at the surface of mitochondria for which import has been compromised by depolarization. PINK1 then recruits the PD-linked E3 ubiquitin ligase Parkin, which in turn mediates the autophagic destruction of the dysfunctional organelles. We used an unbiased RNAi-based screen to identify four mitochondrial proteases, MPP, PARL, m-AAA, and ClpPX, involved in membrane potential-dependent PINK1 degradation. Moreover, we demonstrate that PINK1 cleavage by MPP is coupled to PINK1 import such that reducing MPP activity induces PINK1 accumulation at the mitochondrial surface, leading to Parkin recruitment. These results highlight the importance of PINK1 import and proteolytic processing in the regulation of mitochondrial quality control and identify MPP as a crucial mediator of both events.Les mutations dans la gène PTEN-induced kinase 1 (PINK1) sont responsable d'une forme héréditaire de maladie de Parkinson, un désordre neuro-dégenératif caractérisé par des déficits mitochondriales. La protéine PINK1 est importée dans les mitochondries saines où elle est rapidement dégradée. En revanche, quand l'import des protéines mitochondriales est bloqué par la dépolarisation, PINK1 s'accumule à la surface de la mitochondrie. Cette accumulation permet à PINK1 de recruter Parkin, une E3 ubiquitin ligase qui induit la destruction des mitochondries endommagées par la voie de l'autophagie. Pour identifier les protéases mitochondriales responsables de la dégradation rapide de PINK1 dans les mitochondries saines, nous avons effectué un criblage impartiale à base de RNAi. Cette approche nous a permis d'identifier MPP, PARL, m-AAA, et ClpPX, quatre protéases mitochondriales impliqués dans la dégradation de PINK1. De plus, nous avons démontré que la dégradation de PINK1 par MPP est intimement lié à son importation. Ainsi, une diminution dans l'activité protéolytique de MPP produit une accumulation de PINK1 à la surface des mitochondries, qui à sont tour engendre le recrutement de Parkin. Ces résultats démontrent l'importance de l'importation et de la dégradation de PINK1 dans la régulation du contrôle de qualité mitochondriale, et identifient MPP comme un acteur clé dans ces deux processus.
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Appelman, Alyssa Bolls Paul David. "Grammar and cognitive processing of news articles exploring dual-processing theories /". Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6459.
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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 17, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Thesis advisor: Dr. Paul Bolls. Includes bibliographical references.
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Agbolosoo, Emmanuel Kwami. "Mineral processing in a less developed country: Bauxite processing in Ghana". Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185546.
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The purpose of this dissertation is to evaluate the feasiblity of alumina production in Ghana to replace imported alumina for the production of aluminum. It spells out the conditions which led to the existing bauxite-alumina-aluminum trade in the country. The structure of the economy of Ghana is examined to show the contributions of the important sectors to the total income of the country, and its dependence on a few export commodities for revenue. The plan to build a dam for the generation of hydroelectric power was linked to the establishment of an integrated aluminum industry based on the exploitation of domestic bauxite reserves. As the country could not finance the project alone, foreign assistance was sought. VALCO, a subsidiary of Kaiser and Reynolds, was formed to undertake the project. The agreement reached with VALCO was that a smelter would be built to use imported alumina for ten years, during which time a refinery would be built to feed the smelter from domestic sources. However, after ten years this could not be achieved, and the smelter continues to use imported alumina. A model of the world aluminum economy is used for analyzing the sensitivity of price to production and consumption expansion. The results show that industry demand is sensitive to the level of industrial activities in the developed countries, and less sensitive to the own price and cross price variables of aluminum in both the short and long run. On the other hand, supply is inelastic to the own price and the rate of capacity utilization in the short run, but elastic to both variables in the long run. An appraisal of opening a bauxite mine and an alumina refinery at Kibi is undertaken. The results show the levels of bauxite and alumina prices and the costs of construction at which the project is feasible. The shadow values and weights used are permittd to vary with changes in the economy's foreign trade and the balance of payments.
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Qasim, Muhammad y Ali Chaudhry Majid. "Signal Processing on Ambric Processor Array : Baseband processing in radio base stations". Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-1660.
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The advanced signal processing systems of today require extreme data throughput and low power consumption. The only way to accomplish this is to use parallel processor architecture.
The aim of this thesis was to evaluate the use of parallel processor architecture in baseband signal processing. This has been done by implementing three demanding algorithms in LTE on Ambric Am2000 family Massively Parallel Processor Array (MPPA). The Ambric chip is evaluated in terms of computational performance, efficiency of the development tools, algorithm and I/O mapping.
Implementations of Matrix Multiplication, FFT and Block Interleaver were performed. The implementation of algorithms shows that high level of parallelism can be achieved in MPPA especially on complex algorithms like FFT and Matrix multiplication. Different mappings of the algorithms are compared to see which best fit the architecture.
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Renstad, Rasmus. "Influence of processing and processing additives on the degradation of aliphatic polyesters /". Stockholm, 1998. http://www.lib.kth.se/abs98/rens0529.pdf.
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Larsson, Erik G. "The ubiquitous signal processing : applications to communications, spectral analysis and array processing /". Uppsala : Uppsala Univ, 2001. http://www.gbv.de/dms/goettingen/342399306.pdf.
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Gillani, Syed. "Semantically-enabled stream processing and complex event processing over RDF graph streams". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSES055/document.
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Résumé en français non fourni par l'auteurThere is a paradigm shift in the nature and processing means of today’s data: data are used to being mostly static and stored in large databases to be queried. Today, with the advent of new applications and means of collecting data, most applications on the Web and in enterprises produce data in a continuous manner under the form of streams. Thus, the users of these applications expect to process a large volume of data with fresh low latency results. This has resulted in the introduction of Data Stream Processing Systems (DSMSs) and a Complex Event Processing (CEP) paradigm – both with distinctive aims: DSMSs are mostly employed to process traditional query operators (mostly stateless), while CEP systems focus on temporal pattern matching (stateful operators) to detect changes in the data that can be thought of as events. In the past decade or so, a number of scalable and performance intensive DSMSs and CEP systems have been proposed. Most of them, however, are based on the relational data models – which begs the question for the support of heterogeneous data sources, i.e., variety of the data. Work in RDF stream processing (RSP) systems partly addresses the challenge of variety by promoting the RDF data model. Nonetheless, challenges like volume and velocity are overlooked by existing approaches. These challenges require customised optimisations which consider RDF as a first class citizen and scale the processof continuous graph pattern matching. To gain insights into these problems, this thesis focuses on developing scalable RDF graph stream processing, and semantically-enabled CEP systems (i.e., Semantic Complex Event Processing, SCEP). In addition to our optimised algorithmic and data structure methodologies, we also contribute to the design of a new query language for SCEP. Our contributions in these two fields are as follows: • RDF Graph Stream Processing. We first propose an RDF graph stream model, where each data item/event within streams is comprised of an RDF graph (a set of RDF triples). Second, we implement customised indexing techniques and data structures to continuously process RDF graph streams in an incremental manner. • Semantic Complex Event Processing. We extend the idea of RDF graph stream processing to enable SCEP over such RDF graph streams, i.e., temporalpattern matching. Our first contribution in this context is to provide a new querylanguage that encompasses the RDF graph stream model and employs a set of expressive temporal operators such as sequencing, kleene-+, negation, optional,conjunction, disjunction and event selection strategies. Based on this, we implement a scalable system that employs a non-deterministic finite automata model to evaluate these operators in an optimised manner. We leverage techniques from diverse fields, such as relational query optimisations, incremental query processing, sensor and social networks in order to solve real-world problems. We have applied our proposed techniques to a wide range of real-world and synthetic datasets to extract the knowledge from RDF structured data in motion. Our experimental evaluations confirm our theoretical insights, and demonstrate the viability of our proposed methods
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Baldwin, Daniel Flanagan 1965. "Microcellular polymer processing and the design of a continuous sheet processing system". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/11395.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.Vita.
Includes bibliographical references (leaves 253-262).
by Daniel Flanagan Baldwin.
Ph.D.
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Muller, Lynn F. "Alternative Information Processing Formats for Overcoming Information Processing Deficits in Senior Adults". Thesis, University of North Texas, 2000. https://digital.library.unt.edu/ark:/67531/metadc2672/.
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The objective of this study was to examine the effectiveness of alternative advertising presentation formats, and the quantity of information presented in advertisements in overcoming possible information-processing deficits in senior adults that could affect their recall of ad attributes and brand name, the cognitive responses generated, and attitude toward the ad. In addition, the study examined the effectiveness of retirement status as a classification or segmentation variable in comparison with the use of the more traditional classification variable, chronological age. A convenience sample of senior adult volunteers from church groups, social clubs, and civic organizations from the local area were randomly assigned to one of nine experimental conditions. The experiment utilized a simulated magazine to test the effects of presentation formats (3 levels), and quantity of information (3 levels) on senior adult's recall, cognitive responses and attitude toward the test ads. Covariates (gender, wealth, education, activity level, health, and income) were used to reduce variance. The findings clearly indicate that the presentation format of the can ad adversely affected the memory of some senior adults. In addition, the results were significantly different across the different age levels. Retirement status was less beneficial than chronological age in the current study, but did reveal a marginally significant difference between seniors due to the number of attributes contained in the test ads. The implication of findings for advertisers and those who design marketing communications for seniors are numerous, and relate to the marketer's communication goals. Senior adults may prefer print media, but the inappropriate use of presentation format and the number of product attributes in the ads could have an adverse and significant impact when communicating with senior adults. Recognition of the information-processing differences of senior adults would result in more effective marketing communications for this rapidly growing and important segment of our society.