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Valery, Alexia. "Caractérisation de microtextures par la technique ACOM-TEM dans le cadre du développement des technologies avancées en microélectronique." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI018/document.
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Afin d’optimiser les composants de l’industrie de la microélectronique, il est essentiel d’établir le lien entre la texture cristallographique des matériaux constitutifs et leurs propriétés électriques, thermiques et mécaniques. Ainsi, il est nécessaire de disposer d’outils capables de cartographier la morphologie et l’orientation cristallographique des grains à l’échelle nanométrique. La technique ACOM, implémentée sur un Microscope Electronique en Transmission (MET), permet d’obtenir ces informations en exploitant les figures de diffraction électronique. Dans cette thèse, les capacités de cette technique sont évaluées, à la fois pour déterminer la microtexture de matériaux confinés dans quelques dizaines de nanomètres, et pour répondre aux problématiques associées à la fabrication de nouveaux circuits. Cette étude montre dans un premier temps l’importance de l’optimisation des conditions opératoires du MET afin de diminuer les erreurs d’indexation. Des analyses quantitatives de microtexture sont ensuite menées sur des films minces de siliciures de nickel-platine pour différents dopage du substrat, concentration en platine, et température de recuit. Enfin, le cas d’une superposition de signaux de diffraction observé lorsque plusieurs grains sont contenus dans l’épaisseur de l’échantillon est étudié. Les résultats montrent que les erreurs d’indexation restent rares dans ce cas et que les grains de plus large fraction volumique sont majoritairement sélectionnés par l’algorithme d’indexation. Une méthode est alors proposée pour traiter la totalité de l’information détectée dans les clichés de diffraction. Elle s’appuie sur l’indexation successive des orientations cristallographiques après soustraction préalable des réflexions associées à l’orientation précédemment indexée. Les capacités de cet outil en termes de caractérisation de la morphologie des grains superposés sont finalement comparées à deux autres techniques basées sur la reconstruction d’images en champ sombre et sur la factorisation en matrices non-négativesThe development of advanced nodes in microelectronics requires to understand the impact of crystal size and orientation on the electrical, thermal and mechanical properties of materials. New tools have been developed to map the grains orientation and morphology of nanometer-scaled structures. Among them, the Automated Crystal Orientation Mapping technique used on a Transmission Electron Microscope (ACOM-TEM) is based on the indexation of electron diffraction patterns. The aim of this study was to evaluate the abilities and limitations of the ACOM-TEM technique for the characterization of microelectronics-related materials. Consequently, its ability to analyze nano-sized materials and the possibility of answering problematics related to microelectronics front-end fabrication challenges were investigated. The study highlighted in the first place the importance of the TEM illumination settings. The results showed that minimizing the electron probe convergence angle even at the cost of a larger size has decreased mis-indexation issues. These optimum settings were used to perform quantitative texture analysis of NiPt-silicide thin films. Finally, the case of superimposed diffraction patterns related to overlapping grains was analyzed. Experiments showed that mis-indexing remains limited despite the superimposition and that grains with larger fraction volume were preferentially selected by template matching. A dedicated method was also proposed to overcome crystal overlapping issues. The approach is based on iterative re-indexation of diffraction patterns after subtraction of the reflections related to the previous ACOM best match. Considering the same diffraction patterns data-set, the capabilities of this method to recover the grains size and morphology were compared to two recent techniques based respectively on the analysis of virtual dark field (VDF) images and non-negative matrix factorization (NMF)
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Siebritz, Mark. "A comparative review of the outcomes of two different perinatal mortality classification systems at an Obstetric unit in Cape Town, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71772.
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Thesis (MMed)--Stellenbosch University, 2012.ENGLISH ABSTRACT: Background The annual burden of stillbirths is estimated to be more than 3 million deaths globally. Depending on the perinatal classification used, up to two thirds of deaths are reported as unknown.Gardosi, et al (2006) developed the ReCoDe system, which identified the relevant condition at the time of death in utero. The system aims to identify what went wrong in utero, without necessarily indentifying why fetal demise occurred. With comparison to the conventional Wigglesworth classification, the authors were able to reduce the number of unexplained stillbirths from 66.2% to 15.2%. The Perinatal Problem Identification Program (PPIP) is the nationally implemented perinatal classification system in South Africa. The PPIP database recorded approximately 660 000 births from the 1st January 2006 until 31st December 2007. This reflects approximately 40% of all births in health institutions in South Africa during this time period. There were 11742 stillbirths recorded in on the PPIP database for this two year period.Unexplained stillbirths formed 24% of the total perinatal deaths. The Saving Babies Report 2006-2007 has suggested that funding andresearch resources be directed to identifying the causes of deaths in this group. Objective: Our primary objective was to compare the outcomes of the PPIP to the ReCoDe classification system developed by Gardosi, with special attention as to reducing the number of unexplained stillbirths. Methods: We conducted a retrospective descriptive study on the perinatal deaths occurring at or presenting to the Department of Obstetrics and Gynaecology at Tygerberg Hospital, Cape Town, South Africa, for the time period extending from 01 January 2008 to 31 December 2008. A weekly Perinatal Mortality Audit meeting (PNM) is held at Tygerberg Hospital. In attendance at these meetings are General obstetricians, Fetal-maternal specialists, Neonatologists, Pathologists, a Geneticist, Obstetric and Paediatric Registrars. Relevant clinical details are summarised from clinical notes and Perinatal Losses data forms. These forms are specific to Tygerberg Hospital and completed by the attending doctor at first consultation. Placental histology and post-mortem examination would have been performed in certain cases as per the departmental protocol. All perinatal deaths, both stillborn and neonatal deaths weighing more than 499g, are discussed at this forum and consensus then reached on a primary and final cause of death. This information is then entered into the PPIP database, along with any identifiable avoidable factors.The investigators separately reviewed the information available from the Perinatal Losses and the PIPP V2.2 data capture forms and then reclassified each stillbirth according to the ReCoDe hierarchal system Results: We studied the data sheets of 406 stillbirths of babies of whom the deaths had been previously classified according to the PPIP classification. The median maternal age was 25.65 years (range 14 – 45) while the median birth weight was 1127 grams (range 500 – 4100).The vast majority of these stillbirths occurred in singleton pregnancies and are also classified as extremely low birth weight. The three major causes of stillbirth over the study period were antepartum haemorrhage (24.4%), hypertensive disorders (22.4%) and spontaneous preterm labour (11.1%). Within the ReCoDe classification, the leading categories were in the placental group (33.2%), fetal group (21.6%) and the maternal group (20%). The unexplained group (PPIP IUD group), from the index study constitutes 8.1% (33 of 406) of cases, while the number of unclassified stillbirths in the primary ReCoDe classification accounted for 15% (60 of 406) of the total. The main reasons for this difference is that ReCoDe does not incorporate preterm labour as a cause, and uses customised growth charts for identifying fetal growth restriction. Conclusion: PPIP remains the gold standard in Perinatal Audit in South Africa.We would recommend that ReCoDe be evaluated prospectively, alongside the established PPIP system, to better compare their performance outcomes. The development of customized fetal growth potential charts relevant to the local population should be explored. The Perinatal Losses data capture form should be revised to be more comprehensive and relevant.
AFRIKAANSE OPSOMMING: Agtergrond Die jaarlikse las van doodgeboortes word geskat op meer as 3 miljoen sterftes wêreldwyd. Afhangende van die perinataleklassifikasiesisteem wat gebruik word, tot twee derdes van sterftes is aangemeld as onbekend. Gardosi, et al (2006) het die ReCoDesisteemontwikkel, wat die betrokke toestand in die tyd van die dood in utero geïdentifiseer. Die sisteem het ten doel om te identifiseer wat verkeerd geloop het in utero, sonder om noodwendig te indentifiseer waarom fetaledood plaasgevind het. Invergelyking met die konvensionele Wigglesworth klassifikasie, was die skrywers in staat om die getal van die onverklaarbare dood geboortes van 66,2% tot 15,2% te verminder. Die Perinataleprobleemidentifikasie Program (PPIP) is die nasionaalgeïmplementeerperinataleklassifikasiesisteemin Suid-Afrika. Die PPIP databasis aangeteken ongeveer 660 000 geboortes van die 1ste Januarie 2006 tot 31 Desember 2007. Dit weerspieël ongeveer 40% van alle geboortes in die gesondheids-instellings in Suid-Afrika gedurende hierdie tydperk. Daar was 11.742 doodgeboortes aangeteken in op die PPIP databasis vir hierdie twee jaartydperk. Onverklaarbaredoodgeboortesvorm 24% van die totaleperinatalesterftes. Die Saving Babies Verslag 2006-2007 het voorgestel dat befondsing en navorsing gerig word aan die identifisering van die oorsake van sterftes in hierdie groep. Doelstelling: Ons primêre doel was om die uitkomste van die PPIP te vergelyk met die ReCoDeklassifikasiesisteem wat deur Gardosiontwikkelis , met spesiale aandag aan die vermindering van die aantal van onverklaarbaredoodgeboortes. Metodes: Ons het'n retrospektiewebeskrywendestudie uitgevoer op die perinatalesterftes wat aangemeld het by die noodeenheid van die Departement Obstetrie en Ginekologie aanTygerberg Hospitaal, Kaapstad, Suid-Afrika, vir die tydperk wat strek vanaf 01 Januarie 2008 tot 31 Desember 2008. 'n Weeklikse Perinatale Mortaliteit Ouditvergadering (PNM) word gehou by Tygerberg Hospitaal. In die bywoning van hierdie vergaderings is Algemene Verloskundiges, Fetale-moederskant Spesialiste, Neonatoloë, Patoloë, 'n Genetikus, Obstetriese en Pediatriese Klienieseassistente. Relevante kliniese inligting is uit die kliniese notas en perinataleverliesedatavorms opgesom. Hierdie vorms is spesifiek na die Tygerberg-hospitaal en deur die dokter by die eerstekonsultasie voltooi. Plasentale histologie en post-mortem ondersoek sou voltooi gewees het in sekere gevalle soos per die departementeleprotokol. Alle perinatalesterftes, beide doodgebore en neonatalesterftes wat meer as 499g, word bespreek op hierdie forum en konsensus bereik oor 'n primêre en finale oorsaak van die dood. Hierdie inligting word dan in die PPIP databasis, saam met 'n identifiseerbare voorkombare faktore. Die navorsers afsonderlik die inligting beskikbaar van die perinataleverliese en die PIPP v2.2 datavasleggingsvorms en dan herklassifiseer elke stilgeboorte volgens die ReCoDehiërargiesestelsel. Results: Ons bestudeer die data velle van 406 doodgeboortes van babas van wie die sterftes voorheen volgens die PPIP klassifikasie geklassifiseer is. Die mediaanmoeder se ouderdom was 25,65jaar (range 14? 45?) Terwyl die mediaangeboortegewig was 1127 gram (reeks 500? 4100). Die oorgrote meerderheid van hierdie doodgeboortes plaasgevind in Singleton swangerskappe en word ookgeklassifiseer as &'n baie lae geboortegewig. Die drie grootste oorsake van doodgeboorte oor die studietydperk was antepartum bloeding (24,4%), die hipertensiewesiektes (22,4%) en &'n voortydsekraam (11,1%). Binne die ReCoDeSistematiek, die voorstekategorieë in die plasentalegroep (33,2%), die fetalegroep (21,6%) en die moedergroep (20%). Die onverklaarbaregroep (PPIP IUD groep), van die indeksstudie behels 8,1% (33 van 406) van gevalle, terwyl die aantal van ongeklassifiseerde doodgeboortes in die primêre ReCoDeSistematiek verantwoordelik vir 15% (60 406) van die totaal. Die belangrikste redes vir die verskil is dat ReCoDenieneemvoortydsekraam as &'n oorsaak, en gebruike aangepasgroeikaarte vir die identifisering van fetalegroeibeperking. Gevolgtrekking: PPIP bly die gouestandaard in Perinataleoudit in Suid-Afrika. Ons sal aanbeveel dat ReCoDe vooruitwerkend geëvalueer word, saam met die gevestigde PPIP stelsel, om beter te vergelyk hulprestasieuitkomste. Die ontwikkeling van persoonlikefetalegroeipotensiaalkaarte met betrekking tot die plaaslike bevolking moet ondersoek word. Die perinataleverliese data capture vorm moet hersien word om meer omvattende en relevant te wees.
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SILVA, CARLOS E. da. "Validacao de metodos para as tecnicas de WDXRF e OES-SPARK na analise de acos. Calculo de incerteza de medicao para amostras de process, aco classe API." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9361.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Conocimiento, Dirección de Gestión del. "ACM Digital Library." Asociación de Maquinaria de Computación, 2004. http://hdl.handle.net/10757/655259.
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Dexter, W., C. Jaworski, J. DiFiori, C. Madden, D. Heiman, M. Bouchard, and T. Wadsworth. "ACSM/AMSSM CAQ Review Session Part 1, Dermatology." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/8160.
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BURMAN, GUSTAV, and SIMON ERLANDSSON. "ACM 9000 : Automated Camera Man." Thesis, KTH, Mekatronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233140.
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Today’s digital society is changing the way we learn and educate drastically. Education is being digitalized with the use of online courses and digital lectures. This bachelor thesis solves the problem of how to be able to record a lecture without a camera operator, an Automated Camera Man (ACM), for easier production of high quality education material. It was achieved with a modularized design process, practical testing and a scientific approach. The Automated Camera Man can be placed in the rear of the lecture hall to record or stream the content while it actively adjusts itself and its direction towards the lecturer using image processing and analysis.I dagens digitala samhälle är sättet som undervisning sker på under ständig förändring. Undervisningen håller på att digitaliseras genom användningen av nätbaserade kurser och digitala föreläsningar. Detta kandidatexamensarbete söker en lösning på frågan om hur man kan filma en föreläsning utan en kameraoperatör, med en automatiserad kameraman, för lättare produktion av högkvalitativt videomaterial. Genom en modulariserad designprocess, praktiska tester och vetenskapliga studier, designades ett sådant system. Det automatiska kamerastativet kan placeras längst bak i en föreläsningssal, på vilket en kamera kan placeras för att spela in eller strömma filmmaterial medan stativet riktar in sig mot föreläsarens position, med hjälp av bildbehandling.
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Burman, Gustav, and Simon Erlandsson. "ACM 9000 : Automated Camera Man." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230253.
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Today’s digital society is changing the way we learn andeducate drastically. Education is being digitalized with theuse of online courses and digital lectures. This bachelorthesis solves the problem of how to be able to record alecture without a camera operator, an Automated CameraMan (ACM), for easier production of high quality educationmaterial. It was achieved with a modularized designprocess, practical testing and a scientific approach. TheAutomated Camera Man can be placed in the rear of thelecture hall to record or stream the content while it activelyadjusts itself and its direction towards the lecturerusing image processing and analysis.I dagens digitala samhälle är sättet som undervisning skerpå under ständig förändring. Undervisningen håller på attdigitaliseras genom användningen av nätbaserade kurseroch digitala föreläsningar. Detta kandidatexamensarbetesöker en lösning på frågan om hur man kan filma en föreläsningutan en kameraoperatör, med en automatiserad kameraman,för lättare produktion av högkvalitativt videomaterial.Genom en modulariserad designprocess, praktiska testeroch vetenskapliga studier, designades ett sådant system.Det automatiska kamerastativet kan placeras längst bak ien föreläsningssal, på vilket en kamera kan placeras för attspela in eller strömma filmmaterial medan stativet riktar insig mot föreläsarens position, med hjälp av bildbehandling.
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Gould, Nicholas Daniel. "Enhancing ACOA marital satisfaction a curriculum for the church /." Theological Research Exchange Network (TREN), 1991. http://www.tren.com.
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Loera, Diana I. "Examining Relationship Interactions of Adult Children of Alcoholics." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/423.
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The following study explores the factors associated with security of romantic attachment in Adult Children of Alcoholics (ACOAs). ACOAs are more vulnerable to inconsistent parenting and consequently are more likely to develop negative internal models of self, a stable construct that affects romantic attachments (Bowlby, 1982; Ainsworth et al, 1989; Bartholomew, 1990). This study examined associations between parent, and peer relationships as possible resiliencies. It was hypothesized that ACOAs will report less secure attachments with their parents (as measured by the IPPA), less romantic attachment anxiety and avoidance (as measured by the ECR-R), and no significant difference in peer attachment (as measured by the IPPA) when compared to ACONAs. It was also hypothesized that there will be an association between peer attachments and romantic attachments for ACOAs and not for the ACONAS. One hundred forty-three undergraduate students participated in the study. An independent T-test showed no significance for the initial hypothesis. The second hypothesis was partially supported, an independent T-test showed significant findings unique to ACOAs. ACOAs with more positive peer attachments had more positive romantic attachments.
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Martins, Sarah Cristina Araújo. "The aCDOM spatial and temporal distribution analysis in Funil reservoir /." Presidente Prudente, 2017. http://hdl.handle.net/11449/151454.
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Orientador: Enner Herênio AlcântaraBanca: Thanan Walesza Pqueno Rodrigues Guimarães
Banca: Nilton Nobuhiro Imai
Resumo: A matéria orgânica dissolvida (DOM) é a componente da água que pode ser usada como indicativo de sua qualidade, pois possui duas fontes: uma alóctone, relacionada com descargas de material terrestre, estando vinculada aos ácidos húmicos, e outra autóctone, associada às descargas fluviais ou produção própria do corpo hídrico estudado, estando relacionada aos ácidos fúlvicos. A matéria orgânica dissolvida colorida (CDOM) é a fração colorida da DOM, que pode ser usada como proxy para a observação desta última em águas interiores. O reservatório hidrelétrico de Funil (FHR) foi o corpo hídrico escolhido como área de estudo deste trabalho. Neste contexto, o objetivo geral desta pesquisa foi identificar e avaliar as mudanças no coeficiente de absorção da CDOM (aCDOM) na superfície da água ao longo do tempo (1995 - 2010), bem como entender a sua relação com mudanças no uso e cobertura da terra (LULC) na bacia de contribuição do FHR. Para alcançar tal objetivo foram realizados: (i) o mapeamento histórico de LULC (1995 - 2010, com 5 anos de intervalo) para detecção de mudanças; (ii) o estudo de um conjunto de modelos bio-ópticos baseados na literatura, bem como de um novo modelo empírico desenvolvido para estimar aCDOM via reflectância simulada (Rrs_simulated) para o sensor Thematic Mapper (TM); (iii) a distribuição espaço-temporal do aCDOM por meio da aplicação de um modelo bio-óptico em imagens TM/Landsat-5 de 1995 a 2010, e (iv) a análise das fontes possíveis de CDOM/DOM, assim com... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The dissolved organic matter (DOM) is a water compound related to water quality, since it has two sources: one allochthonous, related to terrestrial discharges that can be linked to humic acids, and another autochthonous, associated with river input and itself production, so related to or fulvic acids. The colored dissolved organic carbon (CDOM) is the colored fraction of DOM that could be used as a proxy for its occurrence in inland waters. The Funil hydroelectric reservoir (FHR) was chosen as the study site for this work. In this context, the general aim of this research was to identify and to evaluate the changes in CDOM absorption coefficient (aCDOM) at the water surface over time (1995 - 2010), and to understand its relationship with land cover land use (LULC) changes in FHR watershed. For match this goal, (i) a LULC historical mapping (1995 - 2010, with 5 years of interval) was made to change detection, (ii) a bio-optical model set and a new model were studied in order to estimate aCDOM from simulated reflectance (Rrs_simulated) for Thematic Mapper (TM) sensor, (iii) a aCDOM spatial and temporal distribution was obtained by applying a bio-optical model in TM/Landsat-5 imagery from 1995 to 2010, and (iv) the possible CDOM/DOM sources in FHR were found, as well aCDOM historical behavior/distribution over time was analysed. Thus, the first study was the support vector machine algorithm (SVM) parameterization according to study area characteristics to LULC supervised classi... (Complete abstract click electronic access below)
Mestre
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Martins, Sarah Cristina Araújo [UNESP]. "The aCDOM spatial and temporal distribution analysis in Funil reservoir." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151454.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
A matéria orgânica dissolvida (DOM) é a componente da água que pode ser usada como indicativo de sua qualidade, pois possui duas fontes: uma alóctone, relacionada com descargas de material terrestre, estando vinculada aos ácidos húmicos, e outra autóctone, associada às descargas fluviais ou produção própria do corpo hídrico estudado, estando relacionada aos ácidos fúlvicos. A matéria orgânica dissolvida colorida (CDOM) é a fração colorida da DOM, que pode ser usada como proxy para a observação desta última em águas interiores. O reservatório hidrelétrico de Funil (FHR) foi o corpo hídrico escolhido como área de estudo deste trabalho. Neste contexto, o objetivo geral desta pesquisa foi identificar e avaliar as mudanças no coeficiente de absorção da CDOM (aCDOM) na superfície da água ao longo do tempo (1995 – 2010), bem como entender a sua relação com mudanças no uso e cobertura da terra (LULC) na bacia de contribuição do FHR. Para alcançar tal objetivo foram realizados: (i) o mapeamento histórico de LULC (1995 – 2010, com 5 anos de intervalo) para detecção de mudanças; (ii) o estudo de um conjunto de modelos bio-ópticos baseados na literatura, bem como de um novo modelo empírico desenvolvido para estimar aCDOM via reflectância simulada (Rrs_simulated) para o sensor Thematic Mapper (TM); (iii) a distribuição espaço-temporal do aCDOM por meio da aplicação de um modelo bio-óptico em imagens TM/Landsat-5 de 1995 a 2010, e (iv) a análise das fontes possíveis de CDOM/DOM , assim como do comportamento/distribuição do aCDOM no FHR ao longo do tempo. Assim, o primeiro estudo desenvolvido nesta pesquisa foi o da parametrização do algoritmo maquinas de vetores de suporte (SVM) de acordo com as características da área de estudo para classificação supervisionada de LULC na bacia de contribuição do FHR. A detecção de mudança da classificação obtida para LULC demonstrou que a parametrização proposta para o SVM tornou o algoritmo capaz de diferenciar classes grandes e contínuas, classes estreitas e alongadas, além de áreas não contínuas e pequenas localizadas dentro de outra classe maior. A classificação obtida para o SVM apresentou boa avaliação estatística, com acurácia geral entre 86% e 96% para toda a série temporal, acurácia do produtor de 90%, acurácia do usuário maior do que 86% e índice Kappa entre 86% e 91%. Ainda, foi observado que o LULC desenvolvido na área de estudo se manteve relativamente estável ao longo da série histórica analisada. O segundo estudo realizado proporcionou o desenvolvimento de um modelo empírico em um comprimento de onda (485 nm) e uma razão de bandas (B4/B1) alternativos para estimativa de aCDOM via Rra_simulated para o TM/Landsat-5 (RMSE = 7%, Nash = 0.91). Este modelo também pôde identificar mesmo pequenas variações nos valores de reflectância via dados orbitais, assim como pode diferenciar variações sutis no aCDOM. Ainda, foram identificados dois padrões de comportamento da CDOM para o FHR: um associado ao LULC e à ocorrência de chuva/lixiviação, bem como outro relacionado à Clorofila-a (Chl-a) em situações de floração de algas. Os referidos estudos que compõe esta pesquisa foram padronizados como artigos científicos para a confecção deste documento. O primeiro estudo, sobre a parametrização do SVM, foi publicado na revista Modelling Earth Systems Environment – Springer (DOI 10.1007/s40808-016-0190-y). O segundo estudo, sobre a distribuição histórica do aCDOM está na etapa de revisão para futura submissão.
The dissolved organic matter (DOM) is a water compound related to water quality, since it has two sources: one allochthonous, related to terrestrial discharges that can be linked to humic acids, and another autochthonous, associated with river input and itself production, so related to or fulvic acids. The colored dissolved organic carbon (CDOM) is the colored fraction of DOM that could be used as a proxy for its occurrence in inland waters. The Funil hydroelectric reservoir (FHR) was chosen as the study site for this work. In this context, the general aim of this research was to identify and to evaluate the changes in CDOM absorption coefficient (aCDOM) at the water surface over time (1995 – 2010), and to understand its relationship with land cover land use (LULC) changes in FHR watershed. For match this goal, (i) a LULC historical mapping (1995 – 2010, with 5 years of interval) was made to change detection, (ii) a bio-optical model set and a new model were studied in order to estimate aCDOM from simulated reflectance (Rrs_simulated) for Thematic Mapper (TM) sensor, (iii) a aCDOM spatial and temporal distribution was obtained by applying a bio-optical model in TM/Landsat-5 imagery from 1995 to 2010, and (iv) the possible CDOM/DOM sources in FHR were found, as well aCDOM historical behavior/distribution over time was analysed. Thus, the first study was the support vector machine algorithm (SVM) parameterization according to study area characteristics to LULC supervised classification in FHR watershed. The obtained LULC change detection analysis demonstrates that the proposed SVM parameterization made the algorithm able to differentiate large and continuous classes, lengthy and thin areas, and non-continuous small areas located inside wide classes. The obtained classification had great statistics with overall accuracy among 86% and 98% over the time series, the producer accuracy of 90%, the user accuracy higher than 86%, and the Kappa statistics ranged from 86% to 91%. In addition, no significant changes in LULC were identified in the study site over all time series. The second study provides a bio-optical model at alternatives wavelength (485 nm) and a band ratio (B4/B1) for aCDOM estimation using simulated Rrs for TM/Landsat-5 (RMSE = 7%, Nash = 0.91). This model could identify even small variations in reflectance values from orbital data, as well as differentiate even slight alterations in aCDOM. Two significantly different aCDOM behaviors were also identified for FHR: one associated with LULC and rainfall/runoff occurrence, and other correlated to Chlorophyll-a high concentrations (Chl-a) in algal blooms situations. The referred studies that compose this research ware standardized as academic articles in this document. The first study, about SVM parameterization, was published yet in Modeling Earth Systems Environment – Springer (DOI 10.1007/s40808-016-0190-y). The second study, about aCDOM historical distribution is in the revision step to future submission.
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VICTOR, OLAVO B. dos S. "Contribuicao ao estudo da cinetica do envelhecimento de acos 'maraging'." reponame:Repositório Institucional do IPEN, 1990. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10230.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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BONA, ARNALDO. "Analise espectografica de acos inoxidaveis pela tecnica ponto a ponto." reponame:Repositório Institucional do IPEN, 1986. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9866.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Roberts, Sherri. "Exercise leader interaction analysis of ACSM rehabilitative exercise specialist candidates." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/101462.
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Twenty subjects were audio and video taped during their exercise leadership examination. The tapes were used to code the interactions that occurred between the exercise leaders and the participants in the simulated cardiac rehabilitation exercise session using an interaction analysis system developed specifically for this physical activity setting group. The system identified interactions that could occur during the warm-up, stimulus, and cool-down phases of the session. The tapes were coded using the Datamyte 801 Observational Recorder. The phases of the sessions were coded individually. A frequency count was made as the interaction categories occurred. The frequencies were converted into rates of interaction (f•min⁻¹) for comparison. The mean rates of interaction were low for the phases and overall (warm-up= .38/min; stimulus= .59/min; cool-down= .29/min; total= .46/min). The individual subject's rates of interaction were all less than 1 interaction per minute (minimum= .28/min; maximum= .72/min). Related t-tests across category facets between phases showed the instruction and explanation facets in the warm-up phase differed significantly from the same facets in the stimulus phase. The compliance facet differed significantly in the stimulus phase from the compliance facet in the other two phases. The monitor facet in the stimulus phase differed significantly from the monitor facet in the cool-down phase. There was no significant differences across facets between the warm-up and cool-down phases. Higher rates of interaction occurred more frequently in the stimulus phase. The coding showed the differences in the interactions of the exercise leaders in the different phases in the simulated exercise session. The low rates of interaction suggest that the exercise leaders may have been reactive to the specific examination situation in which these data were collected.M.S.
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Conocimiento, Dirección de Gestión del. "Guía de acceso para ACM Digital Library." Asociación de Maquinaria de Computación, 2021. http://hdl.handle.net/10757/655259.
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MIRIM, DENILSON de C. "Investigacao da tensao residual na soldagem laser entre o aco carbono AISI 1010 e o aco inoxidavel AISI 304." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9633.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Shang, Delong. "Asynchronous communication circuits : design, test, and synthesis." Thesis, University of Newcastle Upon Tyne, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270826.
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TOTH, HERBERT J. "Estudo comparativo de tecnicas de ataque metalografico para acos-carbono nitretados." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11071.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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POLITANO, RODOLFO. "Modelamento matematico e simulacao computacional do processo de nitretacao de acos." reponame:Repositório Institucional do IPEN, 2003. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11089.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Ruivo, Mário Paulo Saramago. "Efeito do fogo nas comunidades de aves da Serra do Acor." Master's thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/26321.
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Apesar de o fogo ser considerado uma perturbação natural no Mediterrâneo, tem aumentado o número de incêndios e o total de área queimada durante o último século, criando assim uma forte influência na diversidade e distribuição de espécies. Portanto, foi aproveitada a ocorrência do fogo na Serra do Açor, que é considerado um hotspot para a avifauna, para perceber qual a influência das diferentes severidades do fogo na comunidade de aves. Neste sentido, foram realizados censos, de modo a registar a abundância e riqueza de aves presentes na área, durante o primeiro e segundo ano pós-fogo. Após a avaliação de vários parâmetros, verificou-se que as aves preferem usar zonas afetadas com baixa e alta severidade, ao contrário de zonas com severidade intermédia. Assim, é crucial compreender como as espécies são influenciadas pelo fenómeno do fogo, uma vez que permite criar critérios a usar em medidas de conservação futuras; Abstract:
Effect of fire in the bird communities of Serra do Açor
Despite fire being a natural phenomenon in the Mediterranean, the number of fires and the total burned area has increased in the last century, and therefore influencing the biodiversity and distribution of species. Keeping this in mind, we analysed the influence of different severities of fire on the bird community, in the specific case of a fire in Serra do Açor, a protected area known as a hotspot for wildlife. We conducted census, registering the abundance and richness of birds present in the area, during the first and second post-fire years. After the analysis of several parameters, we concluded that birds preferred affected areas with low and high severity, and not areas with intermediate level. Therefore, it is crucial to understand how species are influenced by the phenomenon of fire, since it allows to create criteria that can be used in future conservation measures.
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Birchell, Shannon Lloyd. "Trapping ACO applied to MRI of the Heart." UNF Digital Commons, 2019. https://digitalcommons.unf.edu/etd/862.
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The research presented here supports the ongoing need for automatic heart volume calculation through the identification of the left and right ventricles in MRI images. The need for automated heart volume calculation stems from the amount of time it takes to manually processes MRI images and required esoteric skill set. There are several methods for region detection such as Deep Neural Networks, Support Vector Machines and Ant Colony Optimization. In this research Ant Colony Optimization (ACO) will be the method of choice due to its efficiency and flexibility. There are many types of ACO algorithms using a variety of heuristics that provide advantages in different environments and knowledge domains. All ACO algorithms share a foundational attribute, a heuristic that acts in conjunction with pheromones. These heuristics can work in various ways, such as dictating dispersion or the interpretation of pheromones. In this research a novel heuristic to disperse and act on pheromone is presented. Further, ants are applied to more general problem than the normal objective of finding edges, highly qualified region detection. The reliable application of heuristic oriented algorithms is difficult in a diverse environment. Although the problem space here is limited to MRI images of the heart, there are significant difference among them: the topology of the heart is different by patient, the angle of the scans changes and the location of the heart is not known. A thorough experiment is conducted to support algorithm efficacy using randomized sampling with human subjects. It will be shown during the analysis the algorithm has both prediction power and robustness.
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Johansson, Jenny, and Josefin Filipsson. "ACOA upplevelser av stöd i barndomen och relationer senare i livet : finns det ett samband mellan dessa?" Thesis, Högskolan i Skövde, Institutionen för hälsovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-19743.
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Det är många barn som far illa av att leva med vårdnadshavare som har ett alkoholmissbruk. Dessa barn kan utveckla riskbeteenden och få anknytningsproblem, vilket kan hänga med långt senare i livet. Syftet med studien äratt undersöka individer som i sin barndom levt med en vårdnadshavare med ett alkoholmissbruk (eng; ACOA–Adult Children Of Alcoholics) och få en förståelse för deras upplevelser av socialt stöd i deras barndom, samt om de upplever att de har svårt att knyta relationer senare i livet. Syftet är också att se om det finns något samband mellan det upplevda stödet i barndomen och hur relationerna ser ut senare i livet. Teorier som använts är: Bronfenbrenners ekologiska modell, anknytningsteorin och dubbelbindning (eng; double bind). En kvalitativ forskningsmetod har använts och10 semistrukturerade intervjuer med ACOA har genomförts. Resultatet visade att ACOA upplevde ett svagt stöd i barndomen. ACOA upplevde att de i relationer senare i livet fick tillitsproblem som i vissa fall kundel eda till att ACOA fick det svårt att upprätthålla relationer och en hög självständighet. ACOA upplevde även en hög anpassningsförmåga. Två utsagor som inte gick att analysera var att ACOA försvarade andra på grund av den höga anpassningsförmågan samt att alkoholen kändes viktigare än individen själv.There are many children who suffer from living with guardians who have an alcohol addiction. These children can develop risk behaviors and have attachment problems, which can keep up much later in life. The purpose of the study is to investigate individuals who in their childhood lived with a guardian with alcohol abuse (ACOA -Adult Childen Of Alcoholics) and gain an understanding of their experiences of social support in their childhood, and whether they experience that they have difficulty forming relationships later in life. The purpose is also to see if there is any connection between the perceived support in childhood and what ACOA relationships look like. Theories that been used are: Bronfenbrenner's ecological model, attachment theory and double bind. A qualitative research method has been used and 10 semistructured interviews with ACOA have been conducted. The results showed that the ACOA experienced weak support in childhood. ACOA experienced that in relationships later in life they had trust problems which could, in some cases, lead to ACOA finding it difficult to maintain relationships and a high degree of independence. ACOA also experienced a high degree of adaptability. Two statements that could not be analyzed were that the ACOA defended others due to the high adaptability and that alcohol felt more important than the individual himself.
Handledares efternamn angivet på titelbladet som Waldermansson.
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Grabowski, Gabriel. "ACOS (Akutes Coronares Syndrom)-Register : Auswertung Klinikum Nürnberg im Vergleich zum Gesamtkollektiv." kostenfrei, 2008. http://nbn-resolving.de/urn/resolver.pl?urn=nbn:de:bvb:20-opus-34012.
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Carroll, L. Blair. "Investigation into the detection and classification of defect colonies using ACFM technolgy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0007/MQ42360.pdf.
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ANTUNES, RENATO A. "Correlacao entre ensaios acelerados e ensaios de campo em corpos-de-provas de aco carbono e aco patinavel, sem e com revestimento." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11036.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Zanganeh, Mehdi. "Mechanical properties of fiber reinforced concrete with ACM applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0013/MQ52021.pdf.
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Buchta, Christian, and Josef Mazanec. "SIMSEG/ACM. A simulation environment for artificial consumer markets." SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 2001. http://epub.wu.ac.at/254/1/document.pdf.
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The ACM-Artificial Consumer Market is part of the integrated simulation endeavor named the "Ar-tificial Economy". Complementing and extending the concepts developed in the SIMSEG simulation environment of Working Paper No. 60 this report proceeds in two steps. (1) it outlines the basic con-structs and consumer behavior phenomena implemented in the ACM in a nontechnical manner. (2) it elaborates the formal structure and relationships in full detail. The ACM was never headed for mimicking any real consumer market. However, it is ambitious enough to capture a number of behavioral mechanisms that are deemed crucial for exposing the Artificial Firms' analytical and strategic agents to a challenging artificial marketplace. (author's abstract)Series: Working Papers SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
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Fonseca, Marcos Abraão de Souza. "Uma abordagem ACO para a programação reativa da produção." Universidade Federal de São Carlos, 2010. https://repositorio.ufscar.br/handle/ufscar/454.
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Previous issue date: 2010-06-28Financiadora de Estudos e Projetos
In the context of automated manufacturing systems, combinatorial optimization problems, such as determining the production schedule, have been focused in many studies due to the high degree of complexity to their resolution. Several studies point to use of metaheuristics for the problem dealt, where different approaches perspectives have been proposed in order to find good solutions in a short time. In this paper, we propose an approach based on Ant Colony Optimization metaheuristic (ACO) for the reactive production scheduling problem in an FMS aiming the combination of problem characteristics with metaheuristic characteristics. For this, the problem is addressed from two perspectives, based on modeling and the search method. The problem representation is characterized by a description of the problem at the operations level, since the production schedule is included in this context. On the model is applied a constructive search method based on ACO that using the collaboration principle, establishing a relationship between operations so that it lead the search for promising regions of the solution space. The goal of this work is to obtain a reactive programming in acceptable response time in order to minimize the makespan values. Experimental results showed an improvement of the results obtained so far by other approaches.
No contexto de Sistemas Automatizados de Manufatura, problemas de otimização combinatória, como determinar a programação da produção, têm sido foco de estudo em muitas pesquisas devido ao alto grau de complexidade para sua resolução. Diversos trabalhos apontam para o uso de metaheurísticas para o tratamento do problema, onde diferentes perspectivas de abordagens têm sido propostas visando encontrar soluções de qualidade em um curto espaço de tempo. Neste trabalho, é proposta uma abordagem baseada na metaheurística Otimização por Colônia de Formigas (Ant Colony Optimization ACO) para o problema de programação reativa da produção em um FMS, com o objetivo de conciliar as características do problema com as características da metaheurística. Para isso, o problema é tratado em duas perspectivas, com base na modelagem e no método de busca. A modelagem do problema é caracterizada por uma descrição do problema em nível de operações, uma vez que a programação da produção está incluída neste contexto. Sobre o modelo é aplicado um método de busca construtiva baseado em ACO que usando o princípio de colaboração, estabelece uma relação entre as operações de forma que esta direcione a busca para regiões promissoras do espaço de soluções. O Objetivo deste trabalho é obter uma programação reativa em tempo de resposta aceitável, visando minimizar o valor de makespan. Resultados experimentais mostraram uma melhoria dos resultados até então obtidos por outras abordagens.
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QUEIROZ, FERNANDA M. "Caracterizacao eletroquimica, quimica e morfologica de aco 'galvannealed' comercial." reponame:Repositório Institucional do IPEN, 2003. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11080.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Suski, Cássio Aurélio. "Relação microestrutura e propriedades de aços ao boro tratados termicamente." Florianópolis, SC, 2011. http://repositorio.ufsc.br/xmlui/handle/123456789/95483.
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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de MateriaisMade available in DSpace on 2012-10-26T02:22:53Z (GMT). No. of bitstreams: 0Bitstream added on 2013-07-16T20:44:43Z : No. of bitstreams: 1 299907.pdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
A adição de baixos teores de boro nos aços baixo e médio carbono apresenta a característica de aumentar a temperabilidade por atuar na redução da energia livre nos contornos de grão austenítico devido à segregação de átomos de boro nos contornos, reduzindo a formação de ferrita pró-eutetóide. A composição química, a temperatura de austenitização, temperatura de revenido e a velocidade de resfriamento influenciam consideravelmente no efeito do boro no aumento da temperabilidade. O tratamento térmico de têmpera de componentes fabricados em aço ao boro possui alguns fatores que influenciam na escolha das temperaturas de austenitização. Dentre estes fatores há a necessidade de se obter a microestrutura martensítica através de temperaturas que minimizem a degradação do forno de tratamento térmico. Os objetivos desta tese foram estudar o efeito da temperatura de austenitização na precipitação de carbonetos/borocarbonetos e nas propriedades mecânicas dos aços ao boro PL22 e 15BCr30 após têmpera e revenido e a correlação entre as microestruturas obtidas, propriedades mecânicas e temperabilidade. Para avaliar o efeito da temperatura de austenitização e a solubilização do boro foram utilizadas três temperaturas, uma a comumente utilizada na indústria (870ºC - pouco acima da linha Ac3), uma temperatura um pouco acima da temperatura usual (1050ºC) e outra bastante acima (1200ºC). Observou-se inicialmente que o tamanho de grão austenítico aumenta com a temperatura de austenitização após têmpera e revenido. As análises de microestrutura mostraram que a maior porcentagem de martensita foi obtida com a temperatura de austenitização de 1050ºC, devido à redução da energia livre nos contornos de grão austenítico que reduz a nucleação de ferrita. Na temperatura de austenitização de 870ºC a menor quantidade de martensita foi atribuída à baixa porcentagem de boro em solução e a 1200ºC à maior segregação de não-equilíbrio de boro nos contornos de grão, indicada pela precipitação de borocarbonetos. Nas análises realizadas por microscopia eletrônica de transmissão foi observado a presença de borocarbonetos Fe23(C,B)6 em todas as condições de austenitização, tanto na matriz, quanto nos contornos de grão, porém uma menor quantidade para a austenitização à 1050ºC, proporcionando um melhor efeito do boro no aumento da temperabilidade para esta condição. Finalmente, foram comparados os resultados das propriedades mecânicas com a microestrutura encontrada nos dois aços ao boro. Os resultados mostraram boa concordância entre os valores obtidos nos ensaios e as porcentagens de martensita e a presença de borocarbonetos. Os limites de escoamento e resistência obtidos a partir da austenitização a 1050ºC apresentaram os maiores valores devido ao maior percentual de martensita que está relacionado à menor segregação total de boro nesta condição.
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Solà, Pola Montserrat. "Les proves d'Avaluació Clínica Objectiva i Estructurada (ACOE) en els estudis universitaris d'infermeria." Doctoral thesis, Universitat de Barcelona, 2014. http://hdl.handle.net/10803/132247.
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INTRODUCCIÓ: Les proves d’Avaluació Clínica Objectiva i Estructurada (ACOE) estant reconegudes com un format eficaç d’avaluació en l’àmbit de la salut i han estat implementades per un important sector d’institucions educatives com les Escoles/Facultats d’Infermeria. Durant els anys 2001-2011 es va portar terme a Catalunya un projecte conjunt entre l’Institut d’Estudis de la Salut (IES) i les Escoles/Facultats d’Infermeria catalanes per a la implementació de les citades proves. L’ACOE es considera un escenari on l’estudiant pot demostrar de forma vàlida i fiable la competència adquirida en el seu període de formació en un entorn molt similar al real. Funciona com un instrument avaluatiu que mesura la competència de forma controlada i objectiva. OBJECTIU GENERAL: Analitzar les proves ACOE com a instrument formatiu i/o avaluatiu en els estudis d’infermeria de pregrau. OBJECTIUS ESPECÍFICS: Valorar, a partir de la concurrència de professorat i alumnes, una proposta formativa-avaluativa en els estudis d’infermeria de pregrau: l’ACOE. Identificar, des de la visió dels implicats (estudiants i professorat), el valor i el que aporten les proves ACOE com a entorn facilitador de l’aprenentatge en els estudis universitaris d’infermeria. Comparar els valors identificats respecte a la prova ACOE amb els descrits a la literatura científica. Elaborar conceptes teòrics inductius a partir dels textos generats pels participants, delimitant algunes orientacions educatives. Fer una proposta per implementar les proves ACOE en els estudis de grau. METODOLOGIA: Tenint en compte els objectius de la present tesi, s’ha optat per una metodologia d’investigació qualitativa i el mètode de la Teoria fonamentada. Per analitzar la visió del implicats en les proves ACOE es va recollir informació tant de l’alumnat participant com del professorat organitzador. Les tècniques utilitzades per recollir les dades van ser diverses. En total, es van entrevistar 15 informants (incloent les entrevistes individuals als docents i els alumnes participants del grup focal) i es van administrar qüestionaris de preguntes obertes a 70 alumnes. Per realitzar l’anàlisi de les dades s’ha utilitzat el mètode de les comparacions constants per buscar el significat de les dades categorizant–les. S’ha emprat el suport informàtic del programa Atlas.ti versió 5.0. RESULTATS: Respecte a l’organització i contingut de la prova, els informants valoren les simulacions de les situacions clíniques que s’utilitzen a la prova com creïbles, rellevants i representatives. D’altra banda, destaquen la importància de que la informació abans de realitzar la prova sigui exhaustiva i acurada, aspecte que es relaciona directament amb el nerviosisme que els hi ha generat als alumnes la seva participació en la prova. El valor i les aportacions de la prova ACOE per l’alumnat són: l’autoavaluació, l’autoconeixement, rebre feedback, la possibilitat d’aprendre, ser un repte per posar-se a prova, refermar la confiança, experimentar en situacions noves o representar un assaig de la vida real. En general, la consideren una experiència recomanable. El professorat destaca la seva capacitat per integrar i avaluar competències, l’objectivitat en l’avaluació i la possibilitat d’avaluar la metodologia docent utilitzada. Els professorat unànimement i una part considerable de l’alumnat es mostra favorable a implementar la prova amb una finalitat formativa-avaluativa integrada com una avaluació continua dins dels estudis universitaris d’infermeria de pregrau. CONCLUSIONS: Per tal de millorar l’aprenentatge i l’avaluació de les competències clíniques dels estudis d’infermeria, incloure una prova ACOE com a part d’estratègia d’avaluació continua amb un enfocament multimètode. S’ha de potenciar l’autoavaluació dels alumnes com a element fonamental de la capacitat autònoma d’aprenentatge i millorar el feedback que reben fent-lo més qualitatiu. Per potenciar la viabilitat de la prova ACOE, cal millorar el seu cost-efectivitat implementant una prova d’unes dues hores de durada i buscant totes les estratègies de col•laboració a l’abast.INTRODUCTION: The Objective Structured Clinical Evaluation (OSCE) has been recognized as an effective evaluation tool in the health field and has been implemented by a large sector of educational institutions, like Schools/Faculties of Nursing. During the years 2001 to 2011, a project between the Institute of Health Studies and the Schools/Faculties of Catalan Nursing took place in Catalonia for the implementation of the OSCE, where the students’ performance was evaluated by a direct observation while they had a clinical encounter with a simulated patient. AIM: To analyze OSCE as a training and/or assessment tool in undergraduate nursing education. SECONDARY OBJECTIVES: (1) Identify, from the view of people involved in the evaluation (students and teachers), the value of the evidence OSCE as a facilitator of the learning environment in a Nursing School. (2) Compare the values identified with the OSCE results described in the scientific literature. (3) Develop inductive theoretical concepts from the texts generated by the participants, outlining some educational guidance. (4) Make an approach to implement the OSCE tests in undergraduate nursing. METHODOLOGY: A qualitative research and Grounded Theory Methodology was applied. The information was collected from the students and the faculty involved. Fifteen informants were interviewed (including interviews with teachers and students participating in the focus group) and questionnaires with open-ended questions were administered to seventy students. A constant comparison method was used to perform the data analysis in order to find the meaning of the data, and a computerized program (Atlas.ti) was used to analyze it. RESULTS: With regard to the organization and content of the test, the informants valuated the clinical situations used as credible, relevant and representative. The value and contribution of the OSCE test for the students was: Self-assessment, self-awareness, feedback, the learning and challenge involved. It strengthened confidence and represented a real clinical encounter. In general the OSCE test was considered a recommended experience. The faculty highlighted its ability to integrate and evaluate competence objectively in the evaluation and the ability to assess the teaching methods used. The faculty, as well as an important part of the students, unanimously agreed to develop the OSCE with an educational/assessment purpose within undergraduate nursing Schools/Faculties. CONCLUSIONS: Including an OSCE test with a multi-method approach as part of the evaluation strategy improves the learning and assessment of nursing studies clinical skills. It promotes student self-assessment as a fundamental element of self-learning and improves feedback, making it more qualitative. To enhance the viability of the OSCE test, however, its cost-effectiveness must improve.
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Jesus, Paulo Sérgio de. "Osasco: JOC, ACO e PO no movimento operário (1960-1970)." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/12992.
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Previous issue date: 2007-06-04Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
This essay aims the analysis of the relation between: militants of Juventude Operária Católica - "JOC" (Catholic Workers Youth), Açao Catolica Operaria - "ACO" (Catholic Workers Action), Frente Nacional de Trabalho - "FNT" (National Labor Pool), Pastoral Operária - "PO" (Pastoral of Workers) and the worker class in the city of Osasco, in the 1960's and 70's. Based on the constituition of JOC, ACO and PO in Santo Antonio and Imaculada Conceiçao churches, I tried to bring out the proposals and tendencies according to the military regime and the present workers. So, I noticed the plurality of existing positions and the ambiance of disputes in which are constituted the catholic workers movements, where different interpretations of work relations and catholic doctrine, for example, were debated and improved. The sources analysis showed that it is possible to observe a transformation in the movements throughout this period. We can notice the search for alternatives of solution for workers issues, those movements radicalize their speech and point to a construction of new strategies of fight and worker resistance. Declining an accidental view of the History, the construction of a new syndicalism and base syndicalism did not happen by chance, since the strikes of 1978, neither essentially starting from the Steelworkers Union of SA Bernardo. In the history reconstruction of the work class in Osasco, it is necessary to consider, beside other forces, the acting of catholic militants in the worker and syndical movement and to realize its influence on the authentic syndicalism, mainly in ABC paulista region
Esta dissertação visa à análise das relações entre militantes da Juventude Operária Católica (JOC), Ação Católica Operária (ACO), Frente Nacional do Trabalho (FNT) e Pastoral Operária (PO) e a classe operária, na cidade de Osasco, nas décadas de 1960-1970. Tendo como referência a constituição da JOC, ACO e PO nas igrejas Santo Antônio e Imaculada Conceição, procurei resgatar as propostas e tendências com relação ao regime militar e aos trabalhadores presentes. Notei, então, a pluralidade de posições existentes e o ambiente de disputas em que se constituíam os movimentos católicos operários, onde diferentes interpretações das relações de trabalho e da doutrina católica, por exemplo, debatiam-se e implementavam-se. A análise das fontes permitiu demonstrar que é possível observar uma transformação nos movimentos ao longo deste período. Observa-se que na busca de alternativas de soluções às questões operárias, estes movimentos radicalizaram o seu discurso e apontaram para a construção de novas estratégias de luta e resistência operária. Recusando uma visão acidental da História, a construção de um novo sindicalismo e de base não se deu por acaso, desde as greves de 1978, nem essencialmente partindo do Sindicato dos Metalúrgicos de São Bernardo. Na reconstrução da história da classe operária de Osasco, é preciso considerar, ao lado de outras forças, a atuação dos militantes católicos no movimento operário e sindical e perceber sua influência nos rumos do sindicalismo autêntico, especialmente no ABC paulista
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NEVES, MAURICIO D. M. das. "Soldagem de varetas combustiveis de aco inoxidavel para reatores nucleares." reponame:Repositório Institucional do IPEN, 1986. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9877.
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Dissertacao (Mestrado)
IPEN/D
Universidade Estadual de Campinas - UNICAMP/SP
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Cheenath, Jackson Jacob. "Navigating the "ACM" Digital Library with a new Visualization Interface." Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1372850047.
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Doerner, Karl, Richard F. Hartl, and Marc Reimann. "A hybrid ACO algorithm for the full truckload transportation problem." SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 2001. http://epub.wu.ac.at/74/1/document.pdf.
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In this paper we propose a hybrid ACO approach to solve a full truckload transportation problem. Hybridization is achieved through the use of a problem specific heuristic. This heuristic is utilized both, to initialize the pheromone information and to construct solutions in the ACO pro-cedure. The main idea is to use information about the required fleetsize, by initializing the system with a number of vehicles rather than opening vehicles one at a time as needed. Our results show the advantages of this new approach over more traditional, i.e. sequential, approaches.Series: Report Series SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
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Gammarino, Giuseppe. "Protezione di condotte sottomarine con materassi articolati in cls (acbm) e materassi bituminosi sarmac." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6820/.
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Tesi svolta in collaborazione con Officine Maccaferri S.p.A e con il LIDR (Laboratorio di Ingegneria Idraulica) dell’Università di Bologna.
Descrive caratteristiche tecniche di condotte in acciaio, polietilene ad alta densità (PEAD) e resina poliestere rinforzata con fibre di vetro (PRFV), evidenziando vantaggi/svantaggi del loro impiego.
Fornisce una descrizione delle modalità di posa delle condotte in relazione ai fattori che condizionano la scelta della tecnica più idonea.
Affronta il problema della stabilizzazione e protezione delle condotte soggette all’azione idrodinamica di onde e correnti nelle zona sotto costa e a possibili fattori di rischio esterni. Descrive tecniche di protezione delle condotte sottomarine: interramento (trenching), ricoprimento con materiale roccioso (rock dumping), stabilizzazione con elementi puntuali di appesantimento (concrete collars).Sono descritte le soluzioni di protezione offerte da Officine Maccaferri: materassi articolati in blocchi di calcestruzzo (ACBM) e materassi in geotessuto riempiti di materiale bituminoso (SARMAC). Essi vengono posati sopra la condotta, in posizione longitudinale o trasversale al suo asse, e hanno duplice scopo: (i) incrementarne il peso e la stabilità ai carichi idrodinamici esercitati da onde e correnti e (ii) proteggere la condotta da urti.
Partendo dai risultati del modello sperimentale descritto in Gaeta et al. (2012) che evidenziano problemi di erosione localizzata intorno a condotta posata su fondale mobile protetta con materasso ACBM dovuti alla discontinuità materiale del mezzo si valuta, attraverso uno studio numerico, la opportunità di modificare il materasso, ponendo sotto i blocchetti un geotessile.
Utilizzando un modello numerico, COBRAS, per la simulazione 2DV del campo idrodinamico si analizza l’effetto di smorzamento del campo di velocità e di vorticità indotto dall’aggiunta del geotessuto simulato come mezzo poroso. I dati sono stati elaborati con MATLAB per ricavare le mappature attorno alla condotta.
I test numerici riguardano 3 configurazioni: SARMAC, ACBM, GEO (ACBM+Geotessuto) poggiate su una condotta di diametro costante e sono state analizzate per 2 condizioni di onde regolari di diversa altezza e periodo.
Dagli studi emerge che, per casi di condotta posata su fondo mobile, si consiglia l’utilizzo di materassi SARMAC o materassi ACBM modificati con aggiunta di geotessuto.
Inoltre il geotessuto svolge anche funzione filtrante, per cui permette il passaggio dell’acqua ma allo stesso tempo trattiene il materiale solido movimentato, senza pericolo di erosione.
La presenza dello strato di geotessile non incide sui parametri caratteristici di stabilità globale del materasso ACBM.
Si è compiuta un’analisi comparativa tra SARMAC e ACBM per valutare la convenienza delle due soluzioni. Si propone un esempio di dimensionamento nel caso di protezione di un cavo sottomarino comparando caratteristiche tecniche dei materassi SARMAC e ACBM senza geotessile e facendo valutazioni economiche di massima da cui emerge la maggiore convenienza dei materassi ACBM.
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Sanches, Fabr?cia Medeiros. "Question?rio de Relacionamento Central (CRQ): evid?ncias de validade em pacientes card?acos." Pontif?cia Universidade Cat?lica de Campinas, 2009. http://tede.bibliotecadigital.puc-campinas.edu.br:8080/jspui/handle/tede/239.
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Previous issue date: 2009-02-27The Central Relationship Questionnaire-CRQ is a self-report instrument designed to evaluate the central relationship patterns, specially related to the lovers relationship. As the Core Conflictual Relationship Them- CCRT the CRQ is divided in three subscales: Wishes (W); Responses from Other (RO), and Responses of Self (RS). The aim of this study was to investigate the internal consistency and the convergent and discriminant validities of the Brazilian version of the CRQc6.0 in coronary patients. Method: The Sample included 40 coronary patients (1G) and 30 people of the community (2G). When compared to the 2G participants of 1G were older (average age 58 vs. 37 years old), predominantly composed by men (65% vs. 43,3%), with lower scholarship level (65% - less of 5 years vs. 47% - complete high school). Instruments: The CRQ 6.0 and the Escala de Sintomas Psicopatol?gicos- EAS-40, a measure of psychopathological symptoms according to the following dimensions: psychoticism (F1), obsessivity-compulsivity(F2), somatization (F3) and anxiety (F4).Results: Results suggested: good internal consistency of CRQ 6.0 (?>0,80) in both groups excepting to RO (?=0,58) in 1G; no significant association between the CRQ 6.0 dimensions and the EAS-40 dimensions in 1G p>0,05); significant association between RO and psychoticism, and between RE and psychoticism, RE and obsessivity-compulsivity; RE and somatization and RE and EAS-total (p<0,01). The discriminant validity analyses between the 1G and 2G pointed to significant differences to the W (p=0,018) and RE (p=0,026) dimensions. Future researches should involve more representative and paired samples. It is still suggested that measures of levels of alexithymia and depression are evaluated.
O Question?rio de Relacionamento Central (CRQ) ? um instrumento de autorelato para avaliar o padr?o central de relacionamentos, mais precisamente os relacionamentos amorosos. Originado do m?todo do Tema Central de Relacionamento Conflituoso-CCRT, ? dividido em tr?s subescalas: Desejos (D), Respostas do Outro (RO) e Respostas do Eu (RE). O objetivo foi o de investigar a consist?ncia interna, validade convergente e discriminante da vers?o brasileira do CRQ em pacientes coronarianos. A amostra incluiu 40 pacientes com Doen?a Arterial Coronariana, constituintes do Grupo Um (G1) e 30 acompanhantes do Grupo Dois (G2). Comparado os dois grupos, GC tinha idade m?dia mais elevada (idade m?dia 58 vs.37anos), predomin?ncia do sexo masculino (65% vs. 43,3%) e n?vel mais baixo de escolaridade (62% menor que cinco anos vs. 47% segundo grau completo). Instrumentos: CRQ 6.0 e Escala de Sintomas Psicopatol?gicos-EAS-40 que avalia sintomas psicopatol?gicos segundo as dimens?es: psicoticismo (F1), obsessividade-compulsividade (F2), somatiza??o (F3) e ansiedade (F4). Resultados: Todas as dimens?es do CRQ apresentaram boa consist?ncia interna (?>0,80) em ambos os grupos, com exce??o de RO (?=0,58) no G1. N?o foram encontradas associa??es significantes entre as dimens?es do CRQ 6.0 e as da EAS-40 no G1. No G2 as associa??es foram significantes entre RO e psicoticismo e entre RE e psicoticismo, obsessividade compulsividade e somatiza??o e EAS-40 total (p<0,01). A an?lise de validade discriminante entre G1 e G2 resultou em diferen?as significantes nas dimens?es D (p=0,018) e RE (p=0,026). Pesquisas futuras com o CRQ 6.0 e pacientes com DAC, devem contar com amostras maiores e pareadas. Sugerem-se, ainda, avalia??es dos n?veis de alexitimia e depress?o.
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Carlos, Daniele Maria de Oliveira. "Impacto da variabilidade de peso no controle mateb?lico de pacientes transplantados card?acos." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13285.
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Previous issue date: 2009-11-27Heart transplantation (HT) represents one of the greatest advances in medicine over the last decades. It is indicated for patients with severe heart disease unresponsive to clinical treatment and conventional surgery, poor short-term prognosis and a 1- year mortality rate over 40%. HT has improved survival worldwide (80% in the first year, 70% in five years and 60% in ten years). However, the procedure has been associated with weight change and increased risk of secondary conditions such as diabetes, hypertension, dyslipidemia and obesity due to immunosuppressive therapy following transplantation. The objective of this study was to determine the impact of weight change on the metabolic stability of HT patients. The study was retrospective with data collected from the records of 82 adult patients (83% male; average age 45.06?12.04 years) submitted to HT between October 1997 and December 2005 at a transplantation service in Cear? (Brazil). The selected outcome variables (biopathological profile, weight and body mass index―BMI) were related to biochemical and metabolic change. The results were expressed in terms of frequency, measures of central tendency, Student s t test and Pearson s correlation coefficients. The analysis showed that following HT the average global BMI increased from 23.77?3.68kg/m2 to 25.48?3.92kg/m2 in the first year and to 28.38?4.97kg/m2 in the fifth. Overweight/obese patients (BMI ≥ 25 kg/m2) had higher average levels of glucose, total cholesterol, low-density lipoprotein and triglycerides than patients with eutrophy/malnutrition (BMI < 25 kg/m2). In conclusion, overweight/obese patients were likely to present higher average levels of glucose, triglycerides, total cholesterol and fractions than patients with eutrophy/malnutrition, indicating a direct and significant relation between nutritional status and weight change in the metabolic profile of HT patients
O Transplante Card?aco (TC) tornou-se um dos grandes avan?os da medicina nas ?ltimas d?cadas. ? um procedimento indicado para pacientes com doen?a card?aca avan?ada, refrat?ria ao tratamento cl?nico e cir?rgico convencional, progn?stico reservado em curto prazo e mortalidade acima de 40% no prazo de um ano na evolu??o natural da doen?a. Em todo o mundo seus resultados t?m evidenciado melhora significante na sobrevida, sendo considerada de 80% no primeiro ano, 70% em cinco anos e 60% em dez anos. No entanto, as altera??es de peso ap?s o procedimento frequentemente ocorrem e aumentam os riscos de doen?as secund?rias como diabetes, hipertens?o, dislipidemia e obesidade, complica??es que est?o associadas ? terapia imunossupressora indispens?vel ap?s o TC. O objetivo deste estudo foi determinar o impacto da variabilidade de peso na estabilidade metab?lica de pacientes transplantados do cora??o. O desenho do estudo foi do tipo retrospectivo documental, realizado com 82 pacientes adultos submetidos ao TC entre outubro de 1997 a dezembro de 2005 em centro transplantador no Cear?, sendo 83% do sexo masculino e 17% do sexo feminino com idade m?dia de 45,06?12,04 anos. As vari?veis estudadas foram o perfil biopatol?gico, o peso e o ?ndice de massa corporal (IMC), relacionadas ?s altera??es bioqu?micas-metab?licas. Os dados foram descritos usando frequ?ncias, medidas de tend?ncia central, teste t de Student e coeficiente de correla??o de Pearson. Ap?s a an?lise dos dados, verificou-se que a m?dia global do IMC aumentou de 23,77?3,68 kg/m2 antes do TC, para 25,48?3,92 kg/m2 no primeiro ano e para 28,38?4,97 kg/m2 no quinto. Os pacientes com sobrepeso/ obesidade (IMC ≥25 kg/m2) apresentaram valores m?dios de glicose, colesterol total, lipoprote?na de baixa XIV densidade (LDL) e triglic?rides maiores que os pacientes com eutrofia/ desnutri??o (IMC < 25 kg/m2). Diante dos resultados encontrados nesse estudo, conclui-se que os pacientes com sobrepeso/ obesidade est?o propensos a apresentar n?veis de glicose, colesterol total, LDL e triglic?rides mais elevados que os pacientes com eutrofia/ desnutri??o, o que demonstra que houve uma rela??o direta e significativa entre o estado nutricional e a variabilidade de peso no perfil metab?lico de pacientes transplantados card?acos
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Fighera, Jossiele. "Ang?stia e fantasias relacionadas ao paciente card?aco cir?rgico." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2006. http://tede2.pucrs.br/tede2/handle/tede/678.
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Previous issue date: 2006-06-28Foram elaborados dois artigos para a composi??o dessa disserta??o de mestrado. O primeiro tem como objetivo buscar, a partir dos fundamentos desenvolvidos por Freud e retomados por Lacan, uma maior compreens?o dos conceitos de ang?stia, fantasia e corpo em sua rela??o com pacientes card?acos cir?rgicos. Evidenciamos, ao longo deste trabalho, a import?ncia da fun??o das fantasias como forma de conter a ang?stia dos pacientes em situa??o cir?rgica. Destacamos tamb?m a quest?o do corpo e a imagem corporal, visto que esses pacientes s?o submetidos a procedimentos agressivos e invasivos e t?m seu corpo manipulado por uma equipe m?dica. S?o apresentadas algumas pesquisas atuais que mostram algumas quest?es relevantes sobre o tema. Entretanto, percebemos que ainda existem poucos trabalhos que utilizam o referencial psicanal?tico como uma tentativa de integrar conceitos da psican?lise com a cirurgia card?aca. No segundo artigo procuramos registrar as narrativas de pacientes card?acos sobre a interven??o cir?rgica em situa??o de interna??o hospitalar. Este entendimento ocorreu com base na realiza??o de entrevistas semi-dirigidas com os pacientes e na observa??o dos grupos de pacientes no per?odo pr? e p?s cirurgia card?aca. Alguns elementos se destacaram nesta pesquisa: o per?odo pr?-cir?rgico, a rela??o entre religiosidade e medicina, sintomas e fantasias, a hospitaliza??o e o sentimento de depend?ncia, o per?odo p?s-cir?rgico e a Unidade P?s Operat?ria e a manipula??o do corpo e anestesia.
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LIBERATI, JOAO F. "Compactacao isostatica a quente do po de aco rapido AISI M2." reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10910.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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POLA, ENRIQUE J. G. "Desenvolvimento e caracterizacao de filtros porosos de aco inoxidavel AISI 316L." reponame:Repositório Institucional do IPEN, 1994. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9261.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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SERNA, MARILENE M. "Quantificacao e identificacao de carbonetos no aco ferramenta AISI/SAE M2." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11766.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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LIMA, EMMANUEL P. R. "Desenvolvimento e analise de desempenho de ferramentas de aco rapido sinterizadas." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11762.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
44
Tavares, Rafael Ramos Pedreira. "Facebook: o Dionis?aco em uma modula??o da forma social." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13677.
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Previous issue date: 2013-03-20Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
This paper is about the form of social modulation, The Facebook. The social order is the form that all parties. The modulations (there are several) are aspects of social order and therefore capable formant. The Facebook, then, is searched as a Dionysian aspects of the social form that appears with cyberculture and the mass consumption. Thus, it is to display the attitude of Dionysian that consume otherness and give up the KEYWORDS: social form, modulation, Dionysian, cyberculture, Facebook consumption on Facebook
Esse trabalho trata de uma modula??o da forma social, o Facebook. A forma social ? o todo que forma as partes. As modula??es (existem v?rias) s?o aspectos da forma social e, portanto, com capacidade formante. O Facebook, ent?o, ? pesquisado como um dos aspectos dionis?acos da forma social que surge com a cibercultura e o consumo de massa. Assim, trata-se de mostrar a atitude dionis?aca de consumir a alteridade e dar-se ao consumo no Facebook
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Brunelle, Pascale. "Etude théorique et expérimentale des faisceaux dans l'anneau VUV super-ACO." Paris 7, 1990. http://www.theses.fr/1990PA077181.
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L'anneau VUV d'Orsay Super-ACO est opérationnel depuis le deuxième semestre 1987. Le quatrième onduleur vient d'être installé et 14 lignes fournissent régulièrement des faisceaux de photons pour 23 expériences. Parallèlement, les études de dynamique de faisceau et l'optimisation du fonctionnement se poursuivent. Le travail exposé ici concerne deux problèmes particulièrement importants pour les performances des anneaux de rayonnement synchrotron. Une étude systématique, théorique et expérimentale, de l'acceptance dynamique a clairement montré l'effet néfaste des résonances d'ordre 3 excitées par les hexapoles et des résonances d'ordre 4 excitées par les onduleurs. Une nouvelle optimisation de deux familles d'hexapoles a permis de s'affranchir de l'effet de la résonance d'ordre 3 la plus dangereuse et ceci s'est concrétisé par une amélioration substantielle de la vitesse d'injection. De plus, le choix d'un point de fonctionnement loin des résonances d'ordre 4 a conduit à une durée de vie des faisceaux satisfaisants pour les utilisateurs. Dans une deuxième partie, on a essayé d'évaluer l'impédance équivalente de la chambre à vide de Super-ACO, pour la comparer à la valeur expérimentale déduite des mesures sur le faisceau. L'impédance est un paramètre qui caractérise l'interaction d'un paquet de particules chargées avec son environnement. Sa valeur détermine les limitations en courant dues aux effets collectifs tels que l'allongement turbulent du paquet et l'instabilité transverse. L'utilisation du code de calcul TBCI a nécessité une modélisation de chacune des parties de la chambre à vide pour se ramener à une géométrie à symétrie cylindrique. Le Résonateur Large Bande a été choisi comme modèle d'impédance pour l'exploitation des résultats numériques. La comparaison avec la valeur expérimentale a permis de discuter l'intérêt de la méthodeSince raid 1987, Super-ACO, the Orsay VUV storage ring is operational. The fourth undulator has been recently installed and 14 beam lines can provide photon beams to 23 experiments. Simultaneously, beam dynamic studies and performance improvements are on the way. This work deals with two crucial points for satisfactory operation. A systematic theoretical and experimental study of the dynamic aperture has clearly shown the drastic effect of third and fourth order resonances excited respectively by sextupoles and undulators. A new optimization of two sextupole families has reduced the effect of the most dangerous third order resonance and then the injection rate was increased. Moreover the choice of a working point far away from fourth order resonances provides a satisfactory beam lifetime for users. In a second part, we tried to calculate the Super-ACO vacuum chamber impedance in order to compare it to the measured value deduced from experiments with the beam. The impedance characterizes the interaction between the bunch and the vacuum chamber. Its value defines the thresholds of collective effects such as bunch lengthening and transverse instability. The use of the TBCI code requires a specific modelisation of each part of the vacuum chamber in order to obtain a cylindrical symmetry. The Broad Band Resonator has been chosen as the impedance model to fit the numerical results. The comparison with the experimental value shows the limits and the accuracy of this method
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Zago, Ana Priscila. "Estudo da produtividade do processo de desossa de acem e paleta em uma industria frigorifica." [s.n.], 1997. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254520.
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Orientador: Jose Antonio Dermengi RiosDissertação (mestrado) - Universidade estadual de Campinas, Faculdade de Engenharia de Alimentos
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Resumo: Para esse estudo foi selecionado um dos processos produtivos de uma indústria frigorífica: a desossa de dianteiro bovino para obtenção dos cortes Acém e Paleta Completos. Três funcionários foram escolhidos aleatoriamente para que pudessem ser cronometrados os tempos de processo da desossa de cada corte. Foram calculados os Tempos Padrões para cada funcionário e atividade. Baseado nos Tempos Padrões encontrados foram calculadas as quantidades de dianteiro desossados por cada funcionário e comparada com a quantidade desossada pelo funcionário mais rápido em cada atividade. Através de Gráficos de Controle pode-se observar se os processos de desossa estavam ou não sob controle estatístico. Os processos não se mostraram sob controle com exceção da desossa do Acém efetuada por um dos funcionários que, no estudo de Tempos Padrões, foi o mais lento na execução dessa atividade. A variação na produtividade dos três operadores quando utilizamos como base de cálculo os Tempos Padrões é de até 12%
Abstract: For this case study it was selected one specific process in a meat industry: the beef forequarter fabrication to obtain the complete "acém and paleta" cuts. In order to determine the standard time of fabrication, three employees were chosen randomly and it was measured the total time they take to execute each operation. It was calculated the standard time for each employee and for each activity. Based on the standard times it was calculated the amount of boneless forequarter beef for each employee and compared with the amount boned for the fastest employee. By using control charts it was observed whether the bone processes were or were not under statistical control. The processes, in general, were found to be out of statistical control, with exception of the "acém" boning which is executed for the slowest employee, according to the standard time calculations that were made in this case. When the Standard Times was used as calculation basis, the productivity variation of the three employees reached up to 12%
Mestrado
Mestre em Engenharia de Alimentos
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BAULY, JULIO C. "Caracterizacao microestrutural e propriedades de juntas dissimilares entre acos inoxidaveis fabricados por processos de fusao." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10832.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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LOMBARDI, CRISTINA C. M. "Estudo da influencia da fase ferritica sobre o comportamento de corrosao de acos inoxidaveis austeniticos." reponame:Repositório Institucional do IPEN, 1993. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10352.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
49
Martins, Marcelo. "Temperabilidade Jominy e influência do revenido sobre a dureza." Florianópolis, SC, 2002. http://repositorio.ufsc.br/xmlui/handle/123456789/82731.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Made available in DSpace on 2012-10-19T17:48:52Z (GMT). No. of bitstreams: 1 184887.pdf: 2819877 bytes, checksum: 04a2991640edceae6bf782317218fff5 (MD5)
Este trabalho teve por objetivos (a) determinar a temperabilidade Jominy de diversos aços estruturais nacionais, de grande uso na indústria mecânica; (b) avaliar a influência do revenido sob condições variadas de tempo e de temperatura sobre a dureza pós-têmpera e (c) buscar uma correlação entre as variáveis do processo de revenido (parâmetro de revenido) capaz de servir como ferramenta quando da otimização do processo. O levantamento das curvas de temperabilidade (ou endurecibilidade) busca orientar a engenharia de projetos na seleção de aços para as mais diversas aplicações de manufatura de componentes mecânicos. Um estudo que não foi contemplado no ensaio original desenvolvido por Walter Jominy e seus colaboradores é o levantamento destas curvas na condição de uso da liga de aço, que associa os tratamentos térmicos de têmpera e revenido. Portanto, é de extremo interesse também, o levantamento destas curvas, relacionando as durezas obtidas no revenido para diferentes tempos e temperaturas de tratamento.
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Liblit, Ben. "Cooperative bug isolation winning thesis of the 2005 ACM doctoral dissertation competition." Berlin Heidelberg Springer, 2005. http://dx.doi.org/10.1007/978-3-540-71878-9.
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