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Sarquis, Aiex Marini Ferreira Nicolau. "Applications of Almgren-Pitts min-max theory." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/34947.
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We develop an application of Almgren-Pitts min-max theory to the study of minimal hypersurfaces in dimension 3 ≤ m + 1 ≤ 7 as well as computing the k-width of the round 2-sphere for k = 1,...,8. We show that the space of minimal hypersurfaces is non-compact for an analytic metric of positive curvature and construct a min-max unstable closed geodesic in S^2 with multiplicity 2.
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Haker, Amanda. "Från dröm till verklighet : Harper Pitts roll i Tony Kushners Angels in America." Thesis, Uppsala universitet, Litteraturvetenskapliga institutionen, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-323345.
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Pitts, Rudi. "Balancing employment equity goals with the state's duty to provide an efficient public service delivery / by Rudi Pitts." Thesis, North-West University, 2012. http://hdl.handle.net/10394/9818.
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Blissit, Jessica L. "The Amalgamation of the Personal and the Political: Frederick Douglass and the Debate over Interracial Marriage." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1367833571.
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Gründig-Wendrock, Bianca. "Mikrowellendetektierte Photoleitung und PICTS." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-2661347.
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Inhalt der Arbeit waren die Überprüfung der Leistungsfähigkeit der beiden Verfahren Mikrowellendetektierte Photoleitung (MD-PL) und Mikrowellendetektierte Photo Induced Current Transient Spectroscopy (MD-PICTS) sowie ihre praktische Anwendung auf den Halbleiter GaAs. Zerstörungsfreie Photoleitungs-Wafertopogramme geben Auskunft über die Verteilung des Defekts EL20 bzw. über Widerstand und Ladungsträgerlebensdauer im Volumen eines Wafers bzw. seiner Oberfläche. MD-PICTS-Topographie weiterer Defekte ist möglich. Die Verfahren brachten ein neues Verständnis der bei PICTS ablaufenden Prozesse - die Peakhöhe ist nicht für alle Defekte unmittelbar proportional zur Defektkonzentration. Für die Erklärung positiver und negativer EL2- und EL3-PICTS- Peaks wurde ein Modell entwickelt, nach dem es sich bei diesen Defekten um Rekombinationszentren handelt. Das Modell wurde durch Simulationsrechnungen bestätigt. Ferner entstanden Ergebnisse zum Defekt EL6, an getemperten Wafern und an Epitaxieschichten.
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Hatch, Danny Brad. "Bottomless Pits: The Decline of Subfloor Pits and Rise of African American Consumerism in Virginia." W&M ScholarWorks, 2009. https://scholarworks.wm.edu/etd/1539626584.
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Andersson, Michael. "An Experimental Evaluation of PIT’s Mutation Operators." Thesis, Umeå universitet, Institutionen för datavetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-142506.
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Mutation testing is a fault-finding software testing technique that creates mutants by injecting a syntactic change into the source code. This technique operates by evaluating the ability of a testsuite to detect mutants, which is used to asses the quality of a test suite. The information from mutation testing can be used to improve the quality of a test suite by developing additional test cases. It is a promising technique, but the expensive nature of mutation testing has prevented its wide spread, practical use. One approach to make mutation testing more efficient is selective mutation testing. This approach proposes to use a subset of the available mutation operators, thereby reducing the number of mutants generated which will lead to a reduced execution time. According to theory many mutants are redundant and do not provide any useful information in the development of additional test cases. This study will evaluate PIT, a mutation testing tool, by using selective mutation testing on five programs, and compare the effectiveness of PIT with MuJava. The results showed that PIT’s default operators generated a small and effective set of mutants and at the same time giving a satisfying mutation score. However, there was no significant difference in mutation score produced by the different sets of operators. The test suites adequate for PIT managed to detect 75-85% of MuJava’s mutants, which is relatively good when taken into consideration that PIT generated less than half as many mutants.
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Williams, Margot Maryanne. "The Applicability of the PICTS-SV in Offenders with Severe Substance Use Histories." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707337/.
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Two important developments are addressed by this dissertation. First, the Psychological Inventory of Criminal Thinking Styles-Simplified Version (PICTS-SV) was examined in relation to the original PICTS. Second, the vulnerability of the PICTS-SV to intentional risk minimization (RM) was tested. Two separate studies recruited a total of 150 offenders from a court-mandated residential substance use treatment facility. As expected, Study I established the PICTS-SV's good concurrent validity with the PICTS, especially at the broad composite scale level. For Study II, criminal thinking failed to show the anticipated convergence with HCR-20 risk classifications or forensic correlates. Potential explanations, including a restricted range of risk levels in this sample, are discussed. As a particular strength, the findings highlight that the PICTS-SV, in contrast to many risk measures, displays robust resistance to RM distortion, although revisions to its Df-r validity scale are warranted. These results overall demonstrate strong evidence of the PICTS-SV's utility for assessing a dynamic criminogenic need to inform effective interventions and accurate risk determinations.
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Brenna, Dwayne Scott. "George Dibdin Pitt : his life and work." Thesis, Royal Holloway, University of London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395531.
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This dissertation is a compendious study of George Dibdin pitt's life and work. While the emphasis has been on offering a balanced view of Dibdin Pitt's contributions to theatre and literature, I have also chosen to highlight the psychological complexity of his works. Chapter One features a biography of Dibdin Pitt, proving him to be at the lower end of a low-status profession. Chapter Two examines the Britannia Theatre, and Dibdin Pitt's contributions to that theatre, between 1844 and 1851. In Chapter Three, I will deal with Dibdin pitt's domestic melodramas, showing them to be, like other domestic melodramas of the period, politically conservative. Chapter Four explores anxiety dreams and trauma-induced dreams as they are presented in Dibdin pitt's Gothic melodramas and in other Gothic literature of the age. Chapter Five is concerned with Dibdin Pitt's military melodramas as they compare with Amherst's The Battle of Waterloo. In Chapter Six, I will concentrate on Dibdin pitt's nautical melodramas, comparing them with Jerrold's Black-Eyed Susan, and discussing Dibdin pitt's 2 oscillation between masculine and feminine portrayals of the Jack Tar. Chapter Seven will feature a discussion of Dibdin pitt's most famous crime melodrama (and perhaps the most famous crime melodrama of the period) The String of Pearls. In Chapter Eight, I will study the Gothic settings of Dibdin Pitt's two penny press novels The Sea-Fiend and The Wreck of the Heart. Chapter Nine will offer someconclusive remarks, demonstrating that the psychological complexities of Dibdin pitt's work have largely gone unnoticed or underestimated until recently. The second part of the dissertation is an annotated checklist of a broad cross-section of Dibdin Pitt's plays, listed alphabetically. Sub-genre, and date and venue of production, are noted in each entry
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Mattin, Sarah Patricia. "Nucleation of corrosion pits on stainless steel." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321495.
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Кисанга, Э. "Quantum pits, filaments, points. What is it?" Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/21421.
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Pearson, Kirk. "Experimental biomechanics of trinucleid fringe pits (Trilobita)." Oberlin College Honors Theses / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1497005452717202.
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Calise, Joseph Michael Patrick. "Medieval Celtic texts relating to the Picts and Scots." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/21675.
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The objective of this thesis is to provide a comprehensive and accessible guide to the relatively wide range of Medieval insular sources which, although often cited, in many cases lack authoritative treatment or any treatment at all. It contains a systematic analysis of selected texts which have an emphasis on the origin legends and mythological history of the Picts and Scots. The main body of the thesis is comprised of two parts. The first consists of transcriptions of texts with translations of Medieval Celtic material which discuss the legendary beginnings of the Picts and Scots. The second consists of charts and notes which fully analyse the characters, tribes and places as found in these legends in reference to several genres of Medieval Celtic literature. The evidence is presented in tabular form which allows for textual comparison, and in notes discussing the occurrence and significance of all the names analysed.
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Mori, Jennifer. "William Pitt and the French Revolution, 1785-1795 /." New York : St. Martin's Press, 1997. http://catalogue.bnf.fr/ark:/12148/cb37516336p.
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Pistorius, Petrus Christiaan. "Stability and metastability of corrosion pits on stainless steel." Thesis, University of Cambridge, 1991. https://www.repository.cam.ac.uk/handle/1810/251515.
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Zychowitz, Gert. "Ein Beitrag zum Nachweis tiefer Störstellen in halbisolierendem Galliumarsenid mittels PICTS." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=982189133.
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Zychowitz, Gert. "Ein Beitrag zum Nachweis tiefer Störstellen in halbisolierendem Galliumarsenid mittels PICTS." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2009. http://nbn-resolving.de/urn:nbn:de:bsz:105-3301120.
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Das PICTS-Verfahren ist eine der am häufigsten eingesetzten Methoden zur Charakterisierung semiisolierender Halbleiter. Die methodischen Fortschritte bei der Ermittlung von Störstellenparametern mit diesem Verfahren werden in dieser Arbeit vorgestellt. Als praktikable Methode für den Nachweis einer temperaturabhängigen Änderung des Besetzungsverhältnisses einer Haftstelle wird die Normierung auf die Emissionsrate der Elektronen eingeführt. Es wird gezeigt, dass Peaks, bei denen diese Normierung misslingt, nicht für die Ermittlung der Störstellenparameter herangezogen werden dürfen. Die Untersuchungen belegen, dass für die vollständige Umladung der Störstellen eine geeignete Anregungsintensität verwendet werden muss. Durch PICTS-Messungen an Kupfer-dotierten Proben wird eine systematische Abhängigkeit der Peakhöhen Kupfer-korrelierter Peaks vom Kupfergehalt der Proben nachgewiesen. Mit den Untersuchungen wird belegt, dass sich Kupfer mittels PICTS bis zu einer minimalen AES-Kupfer-Konzentration von [Cu]min ca. 5·1E14/cm^3 nachweisen lässt.
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Dornich, Kay. "Elektrische Charakterisierung und Defektanalytik von Silizium mit MDP und MD-PICTS." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-1645171.
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Die Visualisierung bisher nicht nachweisbarer Defekte in hochwertigem Silizium konnte durch die Entwicklung neuer hochempfindlicher Mikrowellendetektionsverfahren erreicht werden. Dies eröffnet eine Vielzahl von Möglichkeiten zur kontaktlosen und zerstörungsfreien Charakterisierung von Halbleitern. Insbesondere sind bisher unzugängliche Defekte in Silizium und selbst in dünnen epitaktischen Schichten nachweisbar. Elektrische Eigenschaften von Halbleitern wie Lebensdauer, Beweglichkeit und Diffusionslänge können bei kleinen Injektionsraten mit einer Ortsauflösung, die nur durch die Diffusionslänge der Ladungsträger limitiert ist, gemessen werden. Aufgrund der um mehrere Größenordnungen verbesserten Empfindlichkeit kann über ein Mikrowellenabsorptionssignal die Ladungsträgeremission aus Defekten selbst bei qualitativ hochwertigstem Silizium untersucht werden. Dies ermöglicht die Vorhersage elektrischer Eigenschaften von Bauelementen bereits an den Ausgangswafern.
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Cucchiara, Jason. "PUBS, PUNTERS, AND PINTS: ANTHROPOLOGICAL REFLECTIONS ON PUB LIFE IN IRELAND." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4278.
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Ireland is a country with a rich and unique cultural heritage. It is difficult to imagine that certain facets of Irish culture (e.g. Saint Patrick's Day, the Blarney Stone, or the Ring of Kerry) can ever be taken for granted since they are so widely recognized internationally. One common feature of Irish life that possibly warrants more scholarly attention is the public house or pub. Much has been written about pubs as quaint institutions in popular literature and fiction. Curiously, they remain largely overlooked as vital aspects of Irish culture by anthropologists and others in the social sciences. In many ways, socio-cultural research on pub life in Ireland is woefully under examined. In an effort to better evaluate the significance of traditional pub life to Irish culture, my thesis seeks to integrate and critically assess the existing socio-cultural literature on Irish pub life. Such work will not only help highlight both the commonalities and discrepancies within this area of study, it will more significantly identify those areas of Irish pub life that can benefit from further academic investigation. Two recent trips to Ireland in September 2004 and May 2006, allowed me to observe important aspects of pub life first hand. It became apparent from these encounters that, like the history of Ireland itself, local pubs have a rich historical foundation. Many of the pubs that I visited have been in existence or operational since the Middle Ages. Based on this longevity, one can reasonably argue that pubs in Ireland function largely as locales of social significance and cultural reproduction, not just centers of recreational drinking. Using my travel experience as a starting point for the critical analysis phase of this thesis project, I have developed three general research questions that I will explore to varying degrees in the context of this work. These are: (1) what are the origins of pubs in Ireland?; (2) what explicit and implicit functions do pubs serve in Irish communities?; and (3) what possible developments are likely to affect Irish pubs in the near and distant future?M.A.
Department of Anthropology
Sciences
Anthropology MA
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Zychowitz, Gert. "Ein Beitrag zum Nachweis tiefer Störstellen in halbisolierendem GaAs mittels PICTS." Freiberg : TU Bergakademie Freiberg, Fakultät Chemie und Physik, 2006. https://fridolin.tu-freiberg.de/archiv/html/PhysikZychowitzGert330112.html.
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Cucchiara, J. "Pubs, punters, and pints anthropological reflections on pub life in Ireland /." Orlando, Fla. : University of Central Florida, 2009. http://purl.fcla.edu/fcla/etd/CFE0002578.
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Forrest, Marc. "The function of TCF4 in Pitt-Hopkins syndrome and schizophrenia." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/58210/.
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Genome-wide association studies have identified TCF4 (transcription factor 4) as a susceptibility gene for schizophrenia. In addition, rare TCF4 mutations cause Pitt Hopkins syndrome (PTHS), a severe form of intellectual disability associated with characteristic facial features, developmental delay and autonomic dysfunction. TCF4 belongs to the basic helix-loop-helix family (bHLH) of transcription factors that play a central role in development, however the precise function of this gene in the brain is unknown. In this study, I use molecular and cellular techniques to improve our understanding of TCF4 function in the brain. Modeling of PTHS-associated missense mutations in transfected cells showed that TCF4 mutations affecting the DNA-binding domain cause mislocalisation of the mutant protein. DNA-binding domain mutations also impaired dimerisation and attenuated transcriptional activity at the NRXN1 and CNTNAP2 promoters. TCF4 mutations affecting other domains of the protein had context-specific deficits in dimerisation and transactivation under the same conditions. Microarray analysis of SH-SY5Y cells where all TCF4 isoforms had been knocked down identified gene expression changes affecting cellular processes including epithelial-to-mesenchymal transition, apoptosis and neurodevelopment. However, isoform-specific knockdown experiments showed that TCF4-A and TCF4-B isoforms affect distinct biological processes such as the cell cycle, chromatin modification (TCF4-B), cell adhesion and cytoskeletal remodeling (TCF4-A). Finally, mass spectrometry was used to identify TCF4-associated proteins in SHSY5Y cells. These experiments showed that TCF4-B and TCF4-A co-purified with proteins involved in chromatin organization, cell cycle control and RNA splicing. In addition to the bHLH factors HAND2 and TWIST2, TCF4 co-purified with components of the nuclear co-repressor complex. TCF4 also has multiple phosphorylation sites in both activation domains suggesting that TCF4 function may be regulated by kinase signaling. In conclusion, these data provide a mechanistic insight into the function of TCF4 that may advance our understanding of disease processes in PTHS and schizophrenia.
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Swilling, Deanna J. "Pits, potholes and promises a primer for parsons and pillars /." Theological Research Exchange Network (TREN), 2001. http://www.tren.com.
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Patterson, Jr Robert Ewen Charles. "An Archaeological Investigation of Barber Landing, Pitt County, North Carolina." [Greenville, N.C.] : East Carolina University, 2009. http://hdl.handle.net/10342/2238.
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Tatner, Ian. "The effect of notches and pits on corrosion fatigue strength." Thesis, Sheffield Hallam University, 2004. http://shura.shu.ac.uk/20424/.
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An investigation has been undertaken to examine the fatigue behaviour of two martensitic steels in air and aggressive environments. The steels studied are, 18% Ni marageing steel and FV520B, the later being a stainless steel turbine blade material and the former being a marageing steel that suffers general corrosion in mild environments. Both steels were heat treated to give similar tensile strength. The design and manufacture of an autoclave allowed push-pull fatigue tests to be conducted in aggressive environments at elevated temperatures. Corrosion potential was monitored using a three electrode cell and was controlled during testing. Base-line fatigue tests were conducted with a range of constant corrosion potentials, using both notched and plain FV520B specimens. In addition fatigue tests with pulsed corrosion potential were performed to asses the effect of transient corrosion conditions on the corrosion fatigue strength. The pulsed tests were designed to simulate service transients in the oxygen content and general chemical hostility in the condensing steam environment during start-up and shut down of the steam turbine. Post test examination of fractured samples was performed using Scanning Electron Microscopy (SEM) and optical microscope techniques. The fractography results were used to quantify microstructural and fracture features of the steels. A model based on the size and geometry of the initial corrosion pitting has been proposed to asses the fatigue life of FV520B in an aggressive environment. The effect of pitting on the corrosion fatigue strength of FV520B has been modelled using linear elastic fracture mechanics (LEFM) type approach. The model has shown a good correlation between predicted fatigue lives with experimental results. The results suggest that the fatigue life is governed by the mechanical stress concentrating effect of the pits rather than the electrochemical damage caused by the environment. Finite Element Analysis (FEA) of the notch allowed calculation of the elastic stress intensity factor (K[t]) for the specimen geometry used. The experimental results together with numerical results of FEA were used to calculate of the notch strength reduction factor (K[f]) for the material. This has been used to derive the notch sensitivity factors (q) for both materials. The results of fatigue tests in air showed that although both materials have similar tensile strength their plain fatigue strengths are different. The sensitivity of the fatigue strength to notches was also found to be significantly different. The marageing steel showed a higher sensitivity to a notch than the FV520B. An empirical model has been proposed to quantify the notch sensitivity and the effects of various microstructural features on the fatigue strength. A model has been developed to predict the serviceable life of a peak hardened FV520B turbine blade subjected to aggressive low load conditions during start-up and non-aggressive high load conditions during continual running. The model is based on the conclusions suggested in the work of a threshold stress intensity factor being reached where a fatigue crack will grow from a corrosion pit at the root of a notch. The model is then used to highlight the life reduction caused to steam turbine blades due to increased numbers of start-up cycles.
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Ferreira, Alessandra. "Modelagem da nucleação de pites no processo de corrosão de ligas metálicas." Universidade do Estado do Rio de Janeiro, 2006. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=369.
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Conselho Nacional de Desenvolvimento Científico e TecnológicoNesta dissertação é modelado computacionalmente o processo de corrosão por pites em aço inoxidável. Foi implementado um programa computacional que modela a distribuição da concentração local de espécies agressivas, o grau de dano do filme passivo, a suscetibilidade a pites e a distribuição dos pites, com base no modelo de PUNCKT et al. [2004]. Como uma contribuição desta dissertação foi considerada uma dependência entre a concentração local de espécies agressivas e a corrente anódica simulada. Também foi considerada, como outra contribuição do presente trabalho, a existência de pites estáveis e o efeito determinístico decorrente das regiões de inclusões de MnS em aços inoxidáveis. A geração de pites sobre uma superfície metálica é modelada usando um processo randômico de nucleação de pites, e a solução do modelo matemático permite a visualização da superfície corroída.
In the present work a computational model of the pitting corrosion process in stainless steal is developed. A computational program was implemented for the determination of the distribution of the local concentration of aggressive species, the degree of the passive film damage, the susceptibility of pitting and the pitting distribution, based on the PUNCKT et al. [2004] model. As a contribution of the present work dependence between the local concentration of aggressive species and the simulated anodic current is considered. It was also considered, as another contribution, the existence of stable pits and the deterministic effect of regions of MnS inclusions in stainless steel. The generation of pits over a metallic surface is modeled using a random process of pits nucleation, and the mathematical model solution gives the corroded surface visualization.
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Foschi, Martina. "Defect states in MAPbBr3 by photo-induced current transient spectroscopy." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25613/.
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In the past decade, perovskites have been under the spotlight as promising semicon- ductors with unique properties. Hybrid halide perovskites show excellent characteristic properties suitable for optoelectronic applications as tunable band gap, high absorption coefficient, large mobility and long carrier recombination lifetime. However, a complete understanding of environmental instability and the nature of defects in these materials is still lacking, hindering the development of perovskite-based technologies. In this work we studied MAPbBr3 single crystals, fabricated with Inverse Temperature Crystallization (ITC) technique, with Photo-Induced Current Transient Spectroscopy (PICTS). PICTS is a transient photocurrent measurement rarely employed for studying perovskites mate- rials, that allows for the defects characterization in high resistivity materials. We studied the samples under different conditions, such as negative and positive voltage biases, bias stress, different contact geometries and different illumination wavelengths, in order to study their effect on the material physical properties and to evaluate the trap activation energies and their behavior under different working conditions.
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Pereira, Marinalda Claudete [UNESP]. "Estudo morfológico e cinético da corrosão por pites em liga de alumínio 1050." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/103764.
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pereira_mc_dr_guara.pdf: 4232710 bytes, checksum: ea4f89d3947bfa85e4d906d61f044116 (MD5)O objetivo deste trabalho foi estudar as características morfológicas da corrosão localizada na liga de alumínio 1050 e a cinética de crescimento em tamanho dos pites induzidos por ensaios de imersão estática em solução de NaCl, pH 6,0, aerada naturalmente à temperatura ambiente. As amostras foram examinadas antes e após o ensaio de corrosão por microscopia ótica e microscopia eletrônica de varredura e, posteriormente foram analisadas através de um método de captura, processamento digital e análise de imagens, recentemente desenvolvido pelo grupo de Corrosão e Eletroquímica da FEG/UNESP. Exames na superfície da liga após 168h de imersão em NaCl 0,0043 mol/L indicaram um ataque localizado na matriz adjacente às partículas Al:Fe:Si e Al:Fe as quais revelaram um caráter catódico. Mediante análise da variação temporal dos parâmetros obtidos concluiu-se que a área dos pites não muda significativamente enquanto a densidade e a fração de área corroída aumentam com o tempo. A variação temporal indicou que velocidade de corrosão, em termos de propagação superficial, diminui com o tempo de imersão. As características morfológicas e os tamanhos dos pites nos perfis da superfície corroída foram estudados. Os pites induzidos não podem ser representados por uma única geometria, senão pela distribuição morfológica seguinte: i) sem exclusão das cavidades: hemisférico > transição A > transição B > irregular > cônico > cilíndrico; ii) com exclusão das cavidades: hemisférico > transição A > transição B > irregular ~cônico, sem evidências dos pites cilíndricos. Os pites mais profundos foram encontrados especialmente na classe de transição B. A velocidade de crescimento em profundidade (P) ou em largura (L) dos pites foi melhor representada, após a exclusão das cavidades, mediante a lei cinética seguinte:...
This work aim has beem to study the morphologic characteristics of localized corrosion on aluminum alloy 1050 and the growth kinetics in size of pits induced by static immersion tests in NaCl solution, pH 6.0, naturally aerated at room temperature. The samples have been examined before and after the corrosion test by optical microscopy and scanning electron microscopy and subsequently analyzed by a capturing method, digital processing and image analysis, recently developed by the Corrosion and Electrochemistry group of FEG / UNESP. Investigations on the alloy surface after 168h immersion in NaCl 0.0043 mol / L has showed a localized attack on the matrix adjacent to the particles Al: Fe: Si and Al: Fe which have disclosed a cathodic character. By analyzing the temporal variation of obtained parameters it has been concluded that pits area does not change significantly while density and corroded area fraction increase with the time. Temporal variation has indicated that corrosion rate in terms of propagating surface, decreases with immersion time. The morphological characteristics and pits sizes in the corroded surface profiles have been studied. The induced pits may not be represented by a unique geometry, but by the following morphologic distribution: i) without cavities exclusion: hemispheric > transition A > transition B > irregular > conical > cylindrical ii) excluding cavities: hemispheric > transition A > transition B > irregular ~ conical, without cylindrical pits evidence. The deepest pits have been found particularly in transition B class. The pits growth rate in depth (P) or in width (L) has been better represented, after cavities exclusion, by the following kinetics law: P or L = ktm, with k and m empirical values that depend on a combination of different factors
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Brasil, Maria José Santos Pompeu 1961. "Estudo de níveis profundos em semicondutores por transiente de fotocorrente (PITS)." [s.n.], 1989. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278588.
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Orientador: Paulo MotisukeTese (doutorado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin
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Resumo: Neste trabalho apresentamos uma análise detalhada dos transientes de fotocorrente em amostras de GaAs semi-isolante, discutindo a sua aplicação e utilidade como um método de caracterização de impurezas e defeitos, com níveis de energia profundos na banda proibida, de semicondutores altamente esistivos. As medidas do transiente de fotocorrente foram realizadas com um sistema digital inteiramente projetado e construído no próprio laboratório. Apresentamos os detalhes deste projeto, incluindo o "hardware" e "software" envolvidos. O sistema realiza medidas do transiente em tempo real, com alta resolução e fidelidade. Resumimos as noções básicas de emissão e captura de portadores de carga pelos centros num semicondutor, necessárias para analisar os transientes de fotocorrente. Apresentamos um sistema de equações que descrevem estes processos de emissão e captura com as soluções correntes de primeira aproximação encontradas na literatura. Avançamos nesta análise, propondo soluções analíticas com menos aproximações que descrevem melhor o fenômeno experimental. Apresentamos também simulações do transiente de corrente através das soluções numéricas das equações diferenciais com condições de contorno muito próximas das experimentais. Tanto as soluções analíticas quanto as numéricas apresentam comportamentos semelhantes na descrição dos transientes observados. A alta resolução dos transientes medidos permitiu uma análise original e detalhada da forma do decaimento de fotocorrente, comparando-os com as previsões dos modelos teóricos. Em conseqüência, foi possível fazer também uma análise critica do método convencional de tratamento de transientes de fotocorrente, baseado no denominado espectro PITS ("Photo Induced Transient Spectroscopy"). Finalmente, sugerimos um método alternativo de análise direta dos transientes, o que possibilitou a determinação de valores muito mais confiáveis dos parâmetros para os níveis de energia profundos em semicondutores resistivos. Apresentamos espectros PITS de GaAs semi-isolante em diferentes configurações de polarização, iluminação e condições de superfície. Caracterizamos as armadilhas observadas nestas amostras, incluindo as energias de ativação e seções de choque de captura de portadores. Observamos também que, sob condições especiais, ocorre um fenômeno pouco compreendido: o aparecimento de picos negativos no espectro PITS. Apresentamos uma interpretação original para este fenômeno, que está contida nas soluções analíticas e numéricas, apresentadas neste trabalho, para o sistema de equações diferenciais que descrevem o transiente
Abstract: We present a detailed analysis or photocurrent transients in semi-insulating GaAs and we discuss its usefulness as a method for characterization or deep level impurities and defects in high resistivity semiconductors. The photocurrent transient measurements were performed in a "home made" automatic digital system. We present the project details including the hardware and software. This system has the capacity to measure transients in real time with high resolution and fidelity. We summarize the fundamentals of charge carrier emission and capture from deep centers in semiconductors, necessary to analyze the photocurrent transients. We present the differential equations that describes the emission and capture processes with solutions in the first approximation found in the literature. We propose new analytic solutions. in high dark current approximation, that better describe the experimental phenomena. We also present photocurrent transient simulations using numerical solutions of the differential equations with initial conditions very similar to the experimental ones. Both the analytic and numeric solutions presented here, describe equally well the observed photocurrent decay. The high resolution or the measured transients allowed na original and detailed analysis or the photocurrent decay shape. We made a critical analysis or the conventional method or photocurrent transients treatment. based on the so called Photo Induced Transient Spectroscopy (PITS) spectra. In conclusion, we suggest an alternative method for PITS data reduction based on direct analysis of the photocurrent transients, that resulted in more reliable values of activation energy and capture cross section for semi-insulating materials. We present PITS spectra of semi-insulating GaAs in different configurations of polarization, illumination and surface conditions. We characterize the observed traps in the samples, including the activation energies and carrier capture cross sections. We also observed negative peaks in PITS spectra. We present an original interpretation of this phenomenon, based in our analytical and numerical solutions of the differential equation set
Doutorado
Física
Doutor em Ciências
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Parsons, Julie Fox. "The First Battle for Scottish Independence: The Battle of Dunnichen, A.D. 685." [Johnson City, Tenn. : East Tennessee State University], 2002. http://etd-submit.etsu.edu/etd/theses/available/etd-0328102-132641/unrestricted/ParsonsJ.pdf.
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Hulsey, Teresa. "The PICTS, Trauma, Experiential Avoidance, Criminal Thinking and Behavior in an Online Community Sample." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707261/.
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This study sought to generalize the Psychological Inventory of Criminal Thinking Styles (PICTS) factor structure using the PICTS-Layperson (PICTS:L) in a community sample. The current study also sought to replicate previous findings that criminal thinking mediates the relationship between trauma and criminal behavior. Additionally, this study sought to explore if and/or how experiential avoidance (EA) contributes to the relationships between post-traumatic symptoms (PTS) and criminal thinking, and criminal thinking and criminal behavior. Community members recruited through Mturk, completed online measures of PTS, EA, criminal thinking, criminal behavior, and a demographics questionnaire. A confirmatory factor analysis (CFA), which was conducted to assess the PICTS:L factor structure in an online community sample, demonstrated the hierarchical second order factor structure was a good fit after problem items were removed. Mediation analyses results found that criminal thinking mediated the relationship between PTS and criminal behavior therefore replicating previous findings. Moderated mediation analyses were conducted to determine if EA moderates the relationships between PTS and criminal thinking, and criminal thinking and behavior. Findings suggest that EA plays a significant role, particularly for women who endorse relatively low EA. These and exploratory findings, limitations, implications, and future directions for work in these areas are discussed.
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Nunoo, Samuel. "Bayesian Belief network approach to slope management in British Columbia open pits." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57946.
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The stability of rock slopes is a major safety issue in open pit mining. It is important for rock engineers and mine operators to be knowledgeable about their pit wall behaviour, and, more specifically, to recognize appropriate conditions that trigger the need to issue warnings or stop work orders. With the current increase in the number of open pit mines in British Columbia and the deepening of existing pits, there is a need for rational, scientifically based decisions in response to measured pit wall performance. The main objective of this research was to develop and establish a Bayesian Belief Network (BBN) model and outline appropriate operational responses to manage slopes in large open pit porphyry mines. The BBN model can be tailored to specific geotechnical conditions and pit wall configurations. The research integrated available geotechnical engineering data and knowledge, including expert knowledge, ground water conditions, slope geometry, mining activity (blast damage), and consequences of failure, into one platform that can establish appropriate operational responses. A range of pre-defined actions ranging from normal pit operations to orders to stop work and evacuate the pit were defined in this research as operational responses or pit management decisions. These operational responses were linked in the BBN model to predicted states of pit wall movement and estimates of the consequences of these movements. A new relationship was proposed to estimate the travel distance from a wide range of pit slope failure debris volumes. The relationship accounts for a potential rockslide transforming into a rock avalanche. The BBN model was used to retroactively predict the appropriate operational response at four mines to using data from past slope instabilities. The results indicate that equipment damage as well as production losses could have been minimized or prevented had the BBN model been used by the mine operators at the time of each slope instability. The methodology described in the thesis provides the foundation for an innovative tool for the selection of appropriate operational responses linked to measured slope velocity, potential rockslide debris volume, and potential travel distance of the debris.Applied Science, Faculty of
Engineering, School of (Okanagan)
Graduate
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Nason, Ryan. "Life in the Pits: A Trumpeter’s Life in New York’s Musical Theater." Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23798.
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Pit musicians have fallen through the cracks of musical theater scholarship. In all my research, I have yet to come across any sources that thoroughly examine musical theater from the perspective of the musicians who perform in its orchestras day in and day out. Thus, this thesis documents Richard (Dick) R. Smith's life as a professional musician living and working--in vaudeville and on Broadway--in midcentury New York City. Smith might be relatively unknown, but he played a significant role in a variety of musical contexts. By understanding his life, we gain valuable insight into histories that have only focused on the experiences and achievements of actors, bandleaders, composers, orchestrators, and conductors, among others. Examining Smith's experiences also help us understand something about the hundreds, if not thousands, of similarly anonymous pit musicians whose talents and hard work made New York City's vibrant musical life possible.
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Pascoe, Denise Margaret. "Geostatistics applied to probabilistic slope stability analysis in the china clay deposits of Cornwall." Thesis, University of Exeter, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361335.
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Будьоний, Олександр Петрович, Александр Петрович Буденный, Oleksandr Petrovych Budonyi, and І. Ю. Матюшенко. "Рекультивація шламових амбарів при бурінні нафтових і газових свердловин." Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/25622.
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Alessi, Joseph P. "Wigwams West: A Native American Model of Frontier Development." Youngstown State University / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ysu998680970.
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Souza, Fernando Sílvio de. "Tratamentos de superfície e resistência à corrosão por pites dos aços-ferramenta AISI H12 e H13." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/95977.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011Made available in DSpace on 2012-10-26T07:40:20Z (GMT). No. of bitstreams: 1 290270.pdf: 2562700 bytes, checksum: db098d9a0922693e49d1e6cebdb37b12 (MD5)
A resistência à corrosão por pites dos aços-ferramenta AISI H12 revestido com carbeto de vanádio depositado por pulverização catódica magnetrônica (Magnetron Sputtering) e AISI H13 nitretado sob plasma pulsado foi investigada através de medidas eletroquímicas de potencial de circuito aberto, polarização cíclica e impedância eletroquímica em soluções de NaCl 3,5% e 0,9%. Foram investigados filmes de carbeto de vanádio com diferentes espessuras e estequiometrias, depositados sobre a superfície do substrato com diferentes temperaturas para o aço H12. Para os estudos com o aço H13, parâmetros como o tempo de tratamento e a temperatura do substrato durante o processo de nitretação foram analisados. As melhores condições de proteção foram obtidas com as amostras submetidas a tratamento superficial em altas temperaturas e maiores tempos de tratamento, para ambas as técnicas de deposição. Os valores de potencial de pite (Epit) foram deslocados para valores mais nobres, para ambos os aços estudados, o que resulta em maior proteção contra a corrosão localizada. Informações a respeito da microestrutura e morfologia das superfícies modificadas foram obtidas através de experimentos de difração de raios-X e microscopia eletrônica de varredura, respectivamente. A dureza superficial ainda foi determinada por ensaios de nanoindentação. A eficiência de proteção foi associada à composição e a microestrutura das novas camadas na superfície.
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Thier, Katrin. "Of picts and penguins – Celtic Languages in the New Edition of the Oxford English Dictionary." Universität Potsdam, 2007. http://opus.kobv.de/ubp/volltexte/2008/1932/.
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Extract:
[...]The New English Dictionary, later to become the Oxford English Dictionary,
was first published between 1884 and 1928. To add new material, two supplements
were issued after this, the first in 1933, and another, more extensive one
between 1972 and 1986. In 1989, the Oxford English Dictionary, second edition
(OED2) was published, which integrated the material from the original dictionary
and the supplements into a single alphabetical sequence. However, virtually
all material contained in this edition still remained in the form in which it was originally published. This is the edition most commonly used today, as it forms the basis of the Oxford English Dictionary Online and is also still being sold in print and on CD-ROM. In 1991, a new project started to revise the entire dictionary and bring its entries up to date, both in terms of English usage and in terms of associated scholarship, such as encyclopaedic information and etymologies. The scope was also widened, placing a greater emphasis on English spoken outside Britain. The revision of the dictionary began with the letter M, and the first updated entries were published online in March 2000 (OED3). Quarterly publication of further material has extended the range of revised entries as far as PROTEOSE n. (June 2007). New words from all parts of the alphabet have been published alongside the regular revision.[...]
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Palmqvist, Larsson Karin. "Soil Management Strategies to Establish Vegetation and Groundwater Recharge when Restoring Gravel Pits." Licentiate thesis, KTH, Land and Water Resources Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1692.
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The removal of vegetation and overburden changes the naturalwater purifying processes and thus decreases the groundwaterprotection in gravel pit areas. The sand and gravel depositsusedfor aggregate extraction in Sweden are also often valuablefor extraction of groundwater as a drinking water resource. TheSwedish legislation requires that gravel pits be restored afterthe cessation of extraction, the aim being to reestablishvegetation and to reinstate groundwater purifyingprocesses.
The objective of this study was to improve our understandingof the processes governing groundwater protection andvegetation establishment so that these could be applied toimproving restoration methods for reestablishing naturalgroundwater protection. The focus was on the importance of soilphysical properties of the topsoil for vegetation establishmentand groundwater recharge.
Actual field methods for restoration were reviewed.Conflicts between aggregate extraction and groundwaterinterests were common. In many cases the actual restorationcarried out differed from pre-planned specifications in permitdocumentation.
Commonly available substrates that might be used forrestoration of gravel pits were investigated. The soils weredescribed as regards texture, organic content, porosity, waterretention and hydraulic conductivity. The way in which acombination of the water retention characteristic and theunsaturated conductivity influenced the behaviour of thesoil-plant-atmosphere system was demonstrated using aprocess-orientated simulation model. Plants with well-developedaboveground characteristics and shallow roots in particularexerted the highest requirements on the soil physicalproperties.
Key words:groundwater protection, soil physicalproperties, CoupModel, unsaturated conductivity, waterretention, transpiration, soil evaporation
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Burrow, Michael F. "Aspects of resin adhesion to the enamel surface of occlusal pits and fissures /." Title page and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09DM/09dmb972.pdf.
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Brenna, Dwayne Scott. "'Such a dream' : a psychoanalytical study of the melodramas of George Dibdin Pitt." Thesis, University of London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392079.
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Hernigle, Jacqueline Louise. "An Archipelago of Coal Pits: Predicting Archeological Features in the Richmond, Virginia Coalfield." W&M ScholarWorks, 1991. https://scholarworks.wm.edu/etd/1539625657.
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Hahn, Torsten. "Numerische Modellierung und quantitative Analyse der Mikrowellendetektierten Photoleitfähigkeit (MDP)." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2010. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-33230.
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Die hochempfindliche Methode der „Microwave Detected Photoconductivity“ (MDP) wird eingesetzt, um technologisch relevante Halbleiterparameter wie die Ladungsträgerlebensdauer, Photoleitfähigkeit und Defektkonzentrationen über viele Größenordnungen der optischen Anregung hinweg zu untersuchen. Durch die Entwicklung und die Anwendung eines neuartigen Modellierungssystems für die Ladungsträgerdynamik in Halbleitern können wichtige Defektparameter quantitativ aus MDP Messungen in Abhängigkeit der Anregungsintensität bestimmt werden. Ein Verfahren zur Charakterisierung von Haftstellen (Konzentration, Energielage, Einfangsquerschnitt) bei konstanter Temperatur wird vorgestellt. Das technologisch relevante Verfahren des quantitativen Eisennachweises in p-dotiertem Silizium wird für die MDP Methode angepasst und entsprechende Messergebnisse mit DLTS Resultaten verglichen. Ein detaillierter Vergleich der gängigsten kontaktlosen Messverfahren QSSPC und MW-PCD mit der MDP zeigt, dass entgegen gängiger Annahmen die unterschiedlichen Anregungsbedingungen zu drastischen Unterschieden in den gemessenen Werten der Ladungsträgerlebensdauer führen. Dies wird sowohl durch theoretische Berechnungen als auch durch praktische Messergebnisse belegt.
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Mitsianis, Dr Louise. "Relationships Among Patterns of Criminal Thinking Styles and Recidivism in Non-violent Offenders on Probation." ScholarWorks, 2020. https://scholarworks.waldenu.edu/dissertations/7942.
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The 3-year rate of recidivism in the United States is around 43%, costing taxpayers millions of dollars every year. The purpose of this study was to investigate the relationship between criminal thinking styles and self-reported recidivism, which included crimes committed that were not reported to authorities. According to Ellis' Rational-Emotive Behavior Therapy theory, behavior is a direct result of cognitive activity. The research question asked what relationship existed between criminal thinking styles and recidivism for post-release non-violent offenders on probation. Using the Psychological Inventory of Criminal Thinking Styles, this study used a non-experimental survey approach, correlating scores from this measure with self-reported number of crimes from a sample of males and females ranging in age from18-65 years old (n = 9). Although responses to the recidivism question were obtained, the sample size was insufficient to show a significant relationship between these variables (rs = .45). This effect size suggests that further research could be carried out to determine if, with a larger sample size, a significant relationship might be found. It is important for the criminal justice system and forensic mental health services to gain a better understanding of the relationship between criminal thinking styles and recidivism. This study has revealed that self-report of crimes committed can be collected, enabling greater knowledge of offenders' maladaptive behaviors so that those working in the field to help those offenders to reenter society can do so more efficiently, therefore, reducing recidivism.
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Ribeiro, Rosinei Batista [UNESP]. "Análise morfológica de pites em aços inoxidáveis austeníticos ABNT 304 e 310S submetido à nèvoa salina." Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/105375.
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ribeiro_rb_dr_guara.pdf: 6899626 bytes, checksum: 243c390b34b8f55eaccd7334a877efe4 (MD5)Este projeto de pesquisa teve como objetivo estudar toda evolução que governa o crescimento, distribuição e classificação dos pites em aços inoxidáveis austeníticos ABNT 304 e 310S obtidos no estado como recebido e tratados, submetidos a diferentes tempos de exposição em névoa salina. A originalidade deste trabalho baseou-se no desenvolvimento de uma técnica para caracterização morfológica e da corrosão localizada associando com os aspectos de descrição de formas, tamanho, parâmetros específicos e populacionais. O aço inoxidável 304 apresentou morfologia irregulares > região de transição A> cônicos >hemisféricos > região de transição B, sendo que irregulares e região de transição A em maiores quantidades no sistema. Na liga tratada a cada tempo de exposição, a quantidade de pites é da mesma ordem, ou seja, região de transição A, irregulares, cônicos, hemisféricos, região de transição B, sendo que os pites na região de transição A e irregulares estão presentes em maior quantidades no sistema. O aço inoxidável 310S, como recebido, exibiu a seguinte morfologia: pites hemisféricos > região de transição A > região de transição B > irregulares > cônicos, sendo que os pites estão presentes em maiores quantidades em: hemisféricos e região de transição A. A quantidade de pites na liga tratada a cada tempo de exposição é da mesma ordem: região de transição B > hemisféricos > região de transição A > cônicos >irregulares. O aço inoxidável 304 apresentou maior resistência à corrosão por pite do que o aço inoxidável 310S, e também diferenças na distribuição, classificação e mediana dos tamanhos dos pites, conforme os resultados obtidos na avaliação estatística da superfície e perfis dos mesmos.
This research project has had as objective to study all evolution that governs the growth, distribution and classification of pits in ABNT 304 and 310S austenitic stainless steels obtained in the state as receveid and treated, submitted to different times of exposition in saline mist. The originality of this work has been based on the development of a technique for morphologic characterization and of located corrosion associating with the shape description, size specific and population parameters. The 304 stainless steel has presented the following morphology: irregular > transition region A > conic > hemispherical > transition region B, in which irregular and transition region A > are in larger amounts in the system. In the treated alloy at each exposition time, the pits amount is at the same order, in other words, transition region A, irregular, conic, hemispherical, transition region B, in which the pits in the transtion region A and irregular are present in larger amounts in the system. The 310S stainless steel, as receveid, has exhibited the following morphology: hemispherical pits > transition region A > transtion region B > irregular > conic, in which the pits are present in large amounts in: hemispherical pits and transition region A. The pits amount in the treated alloy at each time of exposition has the same order: transition region B > hemispherical > transition region A > conic> irregular. The 304 stainless steel has presented pit corrosion resistance larger than the 310S stainless steel, and also differences in the distribution, classification and pits sizes medium, according to the results obtained in the statistical evaluation of their surface and profiles.
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Ribeiro, Rosinei Batista. "Análise morfológica de pites em aços inoxidáveis austeníticos ABNT 304 e 310S submetido à nèvoa salina /." Guaratinguetá : [s.n.], 2004. http://hdl.handle.net/11449/105375.
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Resumo: Este projeto de pesquisa teve como objetivo estudar toda evolução que governa o crescimento, distribuição e classificação dos pites em aços inoxidáveis austeníticos ABNT 304 e 310S obtidos no estado como recebido e tratados, submetidos a diferentes tempos de exposição em névoa salina. A originalidade deste trabalho baseou-se no desenvolvimento de uma técnica para caracterização morfológica e da corrosão localizada associando com os aspectos de descrição de formas, tamanho, parâmetros específicos e populacionais. O aço inoxidável 304 apresentou morfologia irregulares > região de transição A> cônicos >hemisféricos > região de transição B, sendo que irregulares e região de transição A em maiores quantidades no sistema. Na liga tratada a cada tempo de exposição, a quantidade de pites é da mesma ordem, ou seja, região de transição A, irregulares, cônicos, hemisféricos, região de transição B, sendo que os pites na região de transição A e irregulares estão presentes em maior quantidades no sistema. O aço inoxidável 310S, como recebido, exibiu a seguinte morfologia: pites hemisféricos > região de transição A > região de transição B > irregulares > cônicos, sendo que os pites estão presentes em maiores quantidades em: hemisféricos e região de transição A. A quantidade de pites na liga tratada a cada tempo de exposição é da mesma ordem: região de transição B > hemisféricos > região de transição A > cônicos >irregulares. O aço inoxidável 304 apresentou maior resistência à corrosão por pite do que o aço inoxidável 310S, e também diferenças na distribuição, classificação e mediana dos tamanhos dos pites, conforme os resultados obtidos na avaliação estatística da superfície e perfis dos mesmos.Abstract: This research project has had as objective to study all evolution that governs the growth, distribution and classification of pits in ABNT 304 and 310S austenitic stainless steels obtained in the state as receveid and treated, submitted to different times of exposition in saline mist. The originality of this work has been based on the development of a technique for morphologic characterization and of located corrosion associating with the shape description, size specific and population parameters. The 304 stainless steel has presented the following morphology: irregular > transition region A > conic > hemispherical > transition region B, in which irregular and transition region A > are in larger amounts in the system. In the treated alloy at each exposition time, the pits amount is at the same order, in other words, transition region A, irregular, conic, hemispherical, transition region B, in which the pits in the transtion region A and irregular are present in larger amounts in the system. The 310S stainless steel, as receveid, has exhibited the following morphology: hemispherical pits > transition region A > transtion region B > irregular > conic, in which the pits are present in large amounts in: hemispherical pits and transition region A. The pits amount in the treated alloy at each time of exposition has the same order: transition region B > hemispherical > transition region A > conic> irregular. The 304 stainless steel has presented pit corrosion resistance larger than the 310S stainless steel, and also differences in the distribution, classification and pits sizes medium, according to the results obtained in the statistical evaluation of their surface and profiles.
Orientador: Eduardo Norberto Codaro
Coorientador: Luis Rogério de Oliveira Hein
Banca: Roberto Zenhei Nakazato
Banca: Hamilton de Felipe
Banca: Gilberto Luis Jardim Pinto da Silva
Banca: Koshun Iha
Doutor
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Caffaro, Giulia <1989>. "Does Culture Pay? Le strategie di comunicazione del Gruppo Finanziario Tessile dentro e fuori Pitti Uomo." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9924/1/PHD%20tesi_consegna%20finale_Caffaro%20Giulia.pdf.
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La ricerca indaga il caso del Gruppo Finanziario Tessile (GFT) per rilevare cambiamenti e trasformazioni della moda e della cultura del progetto nel contesto storico italiano degli anni Ottanta, utilizzando la mostra come frammento di spazio e tempo in cui osservare l’interazione tra l’impresa e il suo pubblico.
Facendo luce sull’inesplorato lavoro della Direzione Marketing Comunicazione e Immagine di Torino durante il periodo di massima espansione dell'impresa, le innumerevoli mostre istituzionali realizzate tra il 1983 e il 1988 appaiono come interessanti veicoli culturali per la comunicazione del design.
L’analisi della comunicazione del GFT si suddivide tematicamente dentro e fuori la fiera Pitti Uomo, giungendo ad un ventaglio di piccole risposte alla domanda che guida tutta la ricerca: “La cultura paga?”
Grazie al continuo confronto multidisciplinare che emerge in questa narrazione si può dire che l’impresa avesse quantomeno cercato di favorire il legame tra aspetti economici, sociali e culturali dell’abbigliamento, fornendo validi esempi di come inglobare la cultura negli abiti e viceversa. Facendo ciò, l’ultimo regno dei Rivetti si chiuse a ridosso della globalizzazione con il presentimento che la dimensione culturale e umanistica del prodotto italiano fosse destinata a influenzare sempre di più gli atteggiamenti di consumo.The research investigates the case of the Gruppo Finanziario Tessile (GFT) to detect changes and transformations of fashion and design culture in the Italian historical context of the 1980s, using the exhibition as a fragment of space and time in which to observe the interaction between the company and its public. Shedding light on the unexplored work of Turin's Marketing, Communication and Image Department, the countless institutional exhibitions held between 1983 and 1988 appear as interesting cultural vehicles for design communication. The analysis of the communication of the GFT is divided thematically inside and outside the Pitti Uomo fair, reaching a range of small answers to the question that drives the whole research: "Does culture pay?" Thanks to the continuous multidisciplinary confrontation that emerges in this narrative, it can be said that the company had at least tried to foster the link between economic, social and cultural aspects of clothing, providing valid examples of how to incorporate culture into clothing and vice versa. By doing this, the last reign of the Rivets closed behind globalization with the presentiment that the cultural and humanistic dimension of the Italian product was destined to increasingly influence consumer attitudes.
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Field, Jason Paul. "Comparative Effectiveness of Conventional Trenches and Seepage Pits for Treatment of Septic Tank Effluent." Thesis, The University of Arizona, 2003. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0006_m_sip1_w.pdf&type=application/pdf.
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Garrow, D. J. "Pits, settlement and deposition during the Neolithic and Early Bronze Age in East Anglia." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.599334.
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The fundamental aim of this piece of research is to consider pit sites in substantial detail in order to answer such questions. In doing so, a number of other important issues are confronted, including the nature of settlement/landscape occupation, and the role of deposition as a practice. In East Anglia, Neolithic and Early Bronze Age pits have been found in particularly large numbers. At the same time, in comparison to other regions, relatively few monuments are known (during the Neolithic at least). The region is, therefore, a particularly appropriate place in which to investigate sites of this kind: the range of evidence is broad and of a high quality, while pits were arguably an even more important feature of the period here than elsewhere. The study operates at several different scales, ranging from the region to the individual feature. At the broadest level, changes through time in terms of the number of pits in each site, the overall number of sites, and their geographical locations are discussed. The patterns observed are then contextualised in relation to other aspects of the contemporary landscape (monuments, artefact scatters, structures, flint mines, etc.), allowing insight into the kinds of place in which pits were dug. At a more detailed level, the changing character of the sites themselves is discussed, over the course of four chapters (Earlier Neolithic, Peterborough Ware, Grooved Ware and Beaker). Within each phase, ten sites are considered in detail, with issues such as the spatial and material relationships between pits on each site, the character of individual pits, and the way in which artefacts had been deposited, being addressed. Subsequently, one of the ten sites within each chapter is explored in further detail, as a Case Study. Through first-hand analysis of the artefactual evidence and site archive, the intricate dynamics of deposition on those sites are investigated. Looking in particular at what had happened to artefacts prior to deposition, the quantities of material involved, and what connections between pits can tell us about the processes behind each site’s formation, issues such as the longevity of occupation, the scales of residence, and the permanency of settlement are explored. The final chapter situates this discussion of the dynamic and changing aspects of pit sites in its much wider context.
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Ng, Yuk-yin Judith, and 吳鈺賢. "Soil moisture and related edaphic properties of street-tree pits in urban Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B42575321.
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