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Einarsson, Anneli. "Selektivplaner för spänningsdistributionssystem på Edet Bruk." Thesis, University West, Department of Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-355.
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Sandjojo, Nidjo. "Prototype : an expert database system of ABRI (EDSA) to assist personnel selection in the Armed Forces of the Republic of Indonesia /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA284990.
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Thesis (M.S. in Information Technology Management) Naval Postgraduate School, September 1994.Thesis advisor(s): James C. Emery, Benjamin J. Roberts. "September 1994." Includes bibliographical references. Also available online.
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Goksen, Kadir. "Optical Properties Of Some Quaternary Thallium Chalcogenides." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609442/index.pdf.
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Optical properties of Tl4In3GaSe8, Tl4InGa3Se8, Tl4In3GaS8, Tl2InGaS4 and Tl4InGa3S8 chain and layered crystals were studied by means of photoluminescence (PL) and transmission-reflection experiments. Several emission bands were observed in the PL spectra within the 475-800 nm wavelength region. The results of the temperature- and excitation intensity-dependent PL measurements in 15-300 K and 0.13×10-3-110.34 W cm-2 ranges, respectively, suggested that the observed bands were originated from the recombination of electrons with the holes by realization of donor-acceptor or free-to-bound type transitions. Transmission-reflection measurements in the wavelength range of 400-1100 nm revealed the values of indirect and direct band gap energies of the crystals studied. By the temperature-dependent transmission measurements in 10-300 K range, the rates of change of the indirect band gap of the samples with temperature were found to be negative. The oscillator and dispersion energies, and zero-frequency refractive indices were determined by the analysis of the refractive index dispersion data using the Wemple&ndash
DiDomenico single-effective-oscillator model. Furthermore, the structural parameters of all crystals were defined by the analysis of X-ray powder diffraction data. The determination of the compositional parameters of the studied crystals was done by energy dispersive spectral analysis experiments.
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Almeida, Telmo David Pelicano. "EDFA transient regime characterization." Master's thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/7256.
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Mestrado em Engenharia FísicaO presente trabalho propõe-se a relatar o desenvolvimento de duas interfaces gráficas para a simulação dos modelos estacionário e dinâmico de um amplificador de fibra dopada com érbio (EDFA), bem como a caracterização experimental do regime transiente em EDFAʼs originado por tráfego em modo de rajada. Relata também a validação experimental bem sucedida do modelo dinâmico no que toca a simular os referidos perfis de tráfego. É também descrita a avaliação experimental bem sucedida do impacto na geração de transientes de parâmetros importantes como o tamanho dos pacotes e o intervalo de tempo entre si, e a potência da bomba de um EDFA.
This work relates the development of two graphical user interfaces for the simulation of both the dynamic and steady state models of an erbium doped fiber amplifier (EDFA), as well as the experimental characterization of the transient regime of EDFAs when amplifying bursty traffic profiles. The experimental validation of the numeric model for simulating bursty traffic is also reported. Experimental assessment of important parameters such as packet length, idle time duration and pump power was also performed and reported.
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White, James Charles Peter. "Electrochemistry and organic chemistry of Cr(III) (EDTA)/Cr(II) (EDTA) and related couples." Thesis, University of Southampton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315085.
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Zhou, Li. "Problèmes Statistiques pour les EDS et les EDS Rétrogrades." Phd thesis, Université du Maine, 2013. http://tel.archives-ouvertes.fr/tel-00808623.
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Nous considérons deux problèmes. Le premier est la construction des tests d'ajustement (goodness-of-fit) pour les modèles de processus de diffusion ergodique. Nous considérons d'abord le cas où le processus sous l'hypothèse nulle appartient à une famille paramétrique. Nous étudions les tests de type Cramer-von Mises et Kolmogorov- Smirnov. Le paramètre inconnu est estimé par l'estimateur de maximum de vraisemblance ou l'estimateur de distance minimale. Nous construisons alors les tests basés sur l'estimateur du temps local de la densité invariante, et sur la fonction de répartition empirique. Nous montrons alors que les statistiques de ces deux types de test convergent tous vers des limites qui ne dépendent pas du paramètre inconnu. Par conséquent, ces tests sont appelés asymptotically parameter free. Ensuite, nous considérons l'hypothèse simple. Nous étudions donc le test du khi-deux. Nous montrons que la limite de la statistique ne dépend pas de la dérive, ainsi on dit que le test est asymptotically distribution free. Par ailleurs, nous étudions également la puissance du test du khi-deux. En outre, ces tests sont consistants. Nous traitons ensuite le deuxième problème : l'approximation des équations différentielles stochastiques rétrogrades. Supposons que l'on observe un processus de diffusion satisfaisant à une équation différentielle stochastique, où la dérive dépend du paramètre inconnu. Nous estimons premièrement le paramètre inconnu et après nous construisons un couple de processus tel que la valeur finale de l'un est une fonction de la valeur finale du processus de diffusion donné. Par la suite, nous montrons que, lorsque le coefficient de diffusion est petit, le couple de processus se rapproche de la solution d'une équations différentielles stochastiques rétrograde. A la fin, nous prouvons que cette approximation est asymptotiquement efficace.
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Rodrigues, Thalita Raquel de Carvalho. "Edna Pontellier: una ou múltipla?" Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/9182.
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The focus of our research is on Edna Pontellier, the protagonist of The Awakening, a 19th century novel whose main character is a housewife who was in search of her own emancipation. Our theory and critical resources are supported by works written by Per Seyersted(1979) and Nadilza Moreira(2003) both references names for Chopin's scholarship.Besides, we used Beauvoir' (1970), Woolf' (2012) and Showalter's(1979) critical studies to help us to develop our understanding of the 19th century social-hisorical women's context in the USA. For the study of representation we used the concept fromAna Gabriela Macedo e Ana Luisa Amaral(2005). To support our analysis on the role of the narrative voice we used Chris Baldick(1991) Our conclusion is that: Edna Pontellier represents a multiplicity of images and they are presented to the reader as the narrative develops itself showing Edna's multiples “awakenings” as a woman in transition.
O foco de nossa pesquisa está voltado para Edna Pontellier, a protagonista da novela, O Despertar; Edna uma dona de casa do século XIX que lutou pela emancipação como sujeito. Nossa fundamentação teórica se apóia nas obras escritas por Per Seyersted (1979) e Nadilza Moreira (2003) ambos nomes de referências nos estudos sobre Chopin. Além disso, usamos Beauvoir '(1970), Woolf’ (2012) e os estudos críticos de Showalter para nos ajudar a desenvolver a compreensão do contexto sócio-histórico das mulheres do século XIX nos EUA. Para o estudo da representação utilizamos os estudos de Ana Gabriela Macedo e Ana Luisa Amaral (2005). Finalmente, para apoiar a nossa análise sobre o papel da voz narrativa na novela nos amparamos nos estudos de Chris Baldick (1991). Concluimos que: a representação da protagonista, Edna Pontellier, não é una, mas múltipla e caminha juntamente com os diversos “despertares” vivenciados pela personagem ao longo da trama narrativa.
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Platzer, Edna. "Spatial cognition research the human navigation process and its comparability in complex real and virtual environments /." [S.l.] : [s.n.], 2005. http://137.193.200.177/ediss/platzer-edna/meta.html.
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Schaffer, Shari Dean. "Victorian Maternity and Edna Pontellier's Awakening." W&M ScholarWorks, 1986. https://scholarworks.wm.edu/etd/1539625355.
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Ghannoum, Abir. "EDSs réfléchies en moyenne avec sauts et EDSs rétrogrades de type McKean-Vlasov : étude théorique et numérique." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAM068.
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Cette thèse est consacrée à l'étude théorique et numérique de deux principaux sujets de recherche: les équations différentielles stochastiques (EDSs) réfléchies en moyenne avec sauts et les équations différentielles stochastiques rétrogrades (EDSRs) de type McKean-Vlasov.Le premier travail de ma thèse établit la propagation du chaos pour les EDSs réfléchies en moyenne avec sauts. Nous avons étudié dans un premier temps l'existence et l'unicité d'une solution. Nous avons développé ensuite un schéma numérique via le système de particules. Enfin nous avons obtenu une vitesse de convergence pour ce schéma.Le deuxième travail de ma thèse consiste à étudier les EDSRs de type McKean-Vlasov. Nous avons prouvé l'existence et l'unicité de solutions de telles équations, et nous avons proposé une approximation numérique basée sur la décomposition en chaos de Wiener ainsi que sa vitesse de convergence.Le troisième travail de ma thèse s'intéresse à une autre type de simulation pour les EDSRs de type McKean-Vlasov. Nous avons proposé un schéma numérique basé sur l'approximation du mouvement brownien par une marche aléatoire et nous avons obtenu une vitesse de convergence pour ce schéma.Par ailleurs, quelques exemples numériques dans ces trois travaux permettent de constater l'efficacité de nos schémas et les vitesses de convergences annoncées par les résultats théoriquesThis thesis is devoted to the theoretical and numerical study of two main subjects in the context of stochastic differential equations (SDEs): mean reflected SDEs with jumps and McKean-Vlasov backward SDEs.The first part of my thesis establishes the propagation of chaos for the mean reflected SDEs with jumps. First, we study the existence and uniqueness of a solution. Then, we develop a numerical scheme based on the particle system. Finally, we obtain the rate of convergence of this scheme.The second part of my thesis studies the McKean-Vlasov backward SDEs. In this case, we prove the existence and uniqueness of a solution for such equations. Then, thanks to the Wiener chaos expansion, we provide a numerical approximation. Moreover, the convergence rate of this approximation is also determined.The third part of my thesis proposes another type of simulation for the McKean-Vlasov backward SDEs. Due to the approximation of Brownian motion by a scaled random walk, we develop a numerical scheme and we get its convergence rate.In addition, a few numerical examples in these three parts are given to illustrate the efficiency of our schemes and their convergence rates stated by the theoretical results
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Rossi, Maura Vincenza. "Método alternativo para a determinação complexométrica de magnésio. Influência do volume nas titulações potenciométricas." Universidade de São Paulo, 1986. http://www.teses.usp.br/teses/disponiveis/46/46133/tde-10092018-153423/.
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No presente trabalho comprova-se o efeito prejudicial do oxalato, utilizado para a separação prévia de cálcio e magnésio, na determinação complexométrica deste último com EDTA em águas, usando-se em titulação visual o indicador Negro de Eriocromo T e, em titulação potenciométrica, o sistema indicador Hg/Hg-EDTA. Comprovou-se, também, a viabilidade de se usar como titulante uma solução de EDTA \"tetraneutralizado\", em titulações potenciométricas com medidas de pH através de eletrodo de vidro combinado. Neste caso o ponto final é obtido através da hidrólise da espécie Y4-, após o ponto de equivalência. Assim evidenciou-se a viabilidade de um novo método para a determinação da mistura de cálcio e magnésio, pelo uso EDTA \"tetraneutralizado\" e separação prévia dos dois cátions através da adição de oxalato. A detecção do ponto final nestas titulações com EDTA \"tetraneutralizado\" pode também ser feita visualmente com fenolftaleína. O efeito de volume em titulações potenciométricas em geral, num certo nível de concentração, foi objeto de análises diversas inclusive por cálculo computacional de curvas derivativas. Comprovou-se que quanto menor o volume do titulado maior é o salto potenciométrico obtido, caracterizando-se o que se denominou de \"paradoxo potenciométrico\", pois uma menor massa de substância pode ser titulada com, teoricamente, o mesmo erro relativo que para uma massa maior de substância.Alternative method for the complexometric determination of magnesium. Influence of volume on potentiometric titrations. Keywords: Potentiometry, Magnesium, EDTA. Present paper has been found the negative effect of oxalate, used to the previous separation of calcium and magnesium in a complexometric determination of this last with EDTA in waters, using at visual titration Eriochrome black T as indicator and at potentiometric titration the indicator system Hg/Hg-EDTA. It has been found, also, the viability in the use as titrant a \"tetraneutralized\" EDTA solution, in potentiometric titration with measurements of pH with the glass electrode. In this case the end point is obtained on basis of hydrolysis of Y4- species, after the equivalent point. So it has been displayed the viability of a new method to the determination of the mixture calcium and magnesium by the use of \"tetraneutralized\" EDTA and previous separation of both cations by addition of oxalate. The end point detection can be visually found, in these titrations with \"tetraneutralized\" EDTA, by using of phenolphthalein. The effect of volume in potentiometric titration in general, at a defined concentration level, was subject of several analysis incluse using the compute calculation of derivative curves. It has been found that as smaller volume of titrated performes a higher potentiometric jump, this effect was called for us \"potentiometric paradox\", since an smaller weight of substance can be titrated, with theoretically, the same relative error that to a greater weight of substance.
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Österman, Marie. "Utvärdering av kapillärt protrombinkomplex i EDTA-microtainerrör." Thesis, Linnéuniversitetet, Institutionen för naturvetenskap, NV, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-14329.
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Blodcirkulationen är essentiell för människans överlevnad. När blodets koagulation- och antikoagulationssystem kommer i obalans kan koagelbildning orsaka venös tromboembolism, blodpropp. Patienter som har haft en blodpropp behandlas med antivitamin K-läkemedel (Waran®) för att förebygga recidiv. Dosen är individanpassad och för att erhålla rätt terapeutisk verkan krävs övervakning genom mätning av protrombinkomplex i plasma. Syftet med studien var att utföra en utvärdering samt göra en hållbarhetsstudie på en ny provtagningsrutin för kapillära protrombinkomplex.I studien ingick 48 personer varav 33 män och 15 kvinnor. Åldersfördelning var 22-88 år och medianålder var 62 år. I samband med ordinarie provtagning, vilken användes som referensmetod, för P-protrombinkomplex togs ca 350 μL blod kapillärt i EDTA-microtainerrör. Genom spädning (1:4) av EDTA-blod i citratbuffert möjliggjordes analys av kapillärt P-protrombinkomplex efter 1, 8 och 24 timmar. Samtliga prover analyserades med turbidimetrisk detektion i instrumentet ACL Top 500. Studiens analysresultat jämfördes mot referensmetoden.Studien visar att protrombinkomplexaktiviteten är stabil i blod med EDTA-tillsats i upp till 8 timmar efter provtagning. Dock kan stabiliteten inte garanteras hos individer med hereditära koagulationsrubbningar.
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Wu, Hao. "Overfitting in estimation of distribution algorithms (EDAS)." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496250.
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Estimation of Distribution Algorithms (EDAs) are a class of evolutionary algorithms that use machine learning techniques to solve optimization problems. They generally build probabilistic models based on good solutions found so far and use the constructed models to guide the further search. There is a significant problem within EDAs: when the sample size of EDAs at each generation is not big enough, EDAs fail to find the global optimum no matter how long they are run. To find out the reason, we noticed one of the most important phenomena concerning machine leaming from data is overfitting. in this, the learning algorithm adapts so well to the given data, that noise or particularities of the specific sample are also encoded by the learned model. lt results in reduced performance when the task is the generalisation to unseen data, as producing an overly complex model which may consume unnecessary learning time and computational resources.
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Halderot, Karin, and Maria Sjöstrand. "EDA - På gott och ont : Förstföderskors kunskaper och behov av information om EDA." Thesis, Högskolan i Skövde, Institutionen för hälsa och lärande, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-12955.
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Bakgrund: Antalet förstföderskor som använder sig av EDA har ökat och idag använder dryga hälften EDA under förlossning. Det är den mest effektiva smärtlindringsmetoden som förlossningsvården har att tillgå. EDA vid förlossning är dock förknippat med biverkningar och risker. Barnmorskor har en viktig roll att ge information och undervisning om smärtlindring till gravida kvinnor. Syfte: Syftet med studien var att undersöka förstföderskors kunskaper och behov av information om EDA inför förlossning. Metod: Studien genomfördes och analyserades med metoden kvalitativ innehållsanalys med induktiv ansats. Semistrukturerade intervjuer genomfördes med åtta förstföderskor. Resultat: De analyserade intervjuerna utmynnade i två huvudkategorier; EDA är en metod med fördelar och nackdelar och Förstföderskor har behov av olika information på olika sätt, med tre, respektive två, tillhörande underkategorier. Konklusion: Kvinnornas kunskaper varierade, och många var osäkra. De hade behov av olika information om EDA på flera olika sätt. De upplevde att det varken fanns tid eller möjlighet för diskussion om EDA med barnmorskor, vilket kunde bidra till en känsla av att inte ha fått tillräckligt med information. Barnmorskor behöver därför blir bättre på att erbjuda förstföderskor information om EDA, men även annan smärtlindring som används under förlossning, förslagsvis genom uttökad tid på MHV.Background: The number of primparas who use EDA has increased, and today more than half of them use EDA during childbirth. It is the most effective method of pain relief that is available in maternity care. EDA during childbirth is, however, associated with side effects and risks. Midwives have an important role to provide information and education about pain relief to pregnant women. Purpose: The purpose of this study was to investigate primiparas knowledge and need of information about EDA during childbirth. Method: The study was conducted and analyzed by qualitative content analysis method with inductive approach. Semi-structured interviews were conducted with eight primiparas. Results: The analyzed interviews resulted in two main categories; EDA is a method with advantages and disadvantages and Primiparas need different information in different ways, with three and two associated subcategories. Conclusion: The women's knowledges varied, and many were unsure. They needed different information about EDA in several different ways. They felt that there was neither time nor opportunity for discussion about EDA with midwives, which could contribute to a feeling of not having received sufficient information. Midwives must therefore improve in offering primiparas information about EDA, but also other forms pain relief used during childbirth, suggested by extended time at maternal health care.
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Henneken, Lothar. "Biologischer Abbau des Komplexbildners EDTA : Reaktionskinetik und Verfahrensentwicklung /." Düsseldorf : VDI-Verl, 1995. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=006992114&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Vídeňský, Ondřej. "Analýza bateriových hmot metodami EDS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399522.
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This master thesis deals with analysis of battery mass using x-ray spectral microanalysis. For the measurement two scanning electron microscopes equipped with energy dispersive x-ray spectroscopes were used. Appropriate examples were prepaired by standard method. Then elemental analysis was performed with changing conditions of measurement. Two programs were used for spectrums evaluation and in the end the size of errors was observed for every conditions.
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LÖVMAR, ANTON, and PER CLASSON. "Biofeedback med EDA i Tetris." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-136080.
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In a biofeedback system, data about the user’s physiological functions is measured and used as input for the system. EDA is a measurement of a persons stress and it is used in biofeedback systems. This essay is about measuring EDA with the Affectiva Q Sensor in the game Tetris. The relationship between EDA and the difficulty in the game has been analyzed, both through correlation analysis and curve fitting. In the game the difficulty can be controlled by implicit and explicit biofeedback, and this functionality has been used to see if users could learn to control their stress through explicit biofeedback. The result of the study was that there exists a corrrelation (the average correlation coefficient was 0.472) between EDA and difficulty. It was also shown that the players could not control their EDA with the help of explicit biofeedbackI biofeedback-system mäts och registreras data om användarens fysiologiska funktioner, för sedan kunna användas som indata till systemet. EDA är ett mått på hur stressad en person är och används i biofeedback-system. Denna uppsats handlar om att mäta EDA med hjälp av Affectiva Q Sensor i spelet Tetris. Sambandet mellan EDA och svårighetsgraden i spelet har undersökts, både med hjälp korrelationsanalys och kurvanpassning. I spelet kan svårighetsgraden styras med implicit och explicit biofeedback, och med denna funktionalitet har det testats det om det är möjligt för en spelare att kontrollera sin EDA med hjälp av den explicita feedbacken. Resultatet var att det finns en korrelation (medelvärdet för korrelationskoefficienten var 0.472) mellan EDA och svårighetsgrad, däremot kunde spelarna inte lära sig att kontrollera sin EDA (stress) när de spelade Tetris.
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Bala, Kamel. "EDEA an expert knowledge-based tool for performance measurement /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ66342.pdf.
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Jackson, James Trent. "Reduction of EDFA optical power transients using power shaping." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/jackson/JacksonJ0808.pdf.
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Many erbium doped fiber amplifier (EDFA) based multi-wavelength optical networks employ techniques such as burst-switching or packet switching where the time interval between traffic blocks can be long enough to induce EDFA optical power transients. The optical power transients are created by abrupt changes in the average input power to the EDFAs and can adversely affect the performance of the network. To mitigate the effects of EDFA optical power transients on optical networks, a method called power shaping where heads and tails are joined to the beginning and end of a traffic block is investigated. A head (tail) gradually increases (decreases) the channel power by employing a bit sequence in which the probability of a \"1\" (\"0\") increases from 0 to 0.5. Theoretical and experimental results both show that EDFA optical power transients can be significantly reduced with adequate shaping periods. Experiments also show the bit error rate of the system is reduced for increased shaping periods. Power shaping is an economical means of suppressing EDFA optical power transients compared to other physical layer approaches that require the addition of specialized components and can be applied to EDFAs as well as other solid-state and Raman optical amplifiers.
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Villa, Danielle E. "Late Paleozoic deformation at Edna Mountain, Humboldt County, Nevada." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447592.
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Zimmermann, Jonas [Verfasser]. "DNA barcoding and eDNA barcoding in diatoms / Jonas Zimmermann." Gießen : Universitätsbibliothek, 2015. http://d-nb.info/106887502X/34.
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Schulz, Katja. "Riesen : von Wissenshütern und Wildnisbewohnern in Edda und Saga /." Heidelberg : Winter, 2004. http://catalogue.bnf.fr/ark:/12148/cb401149605.
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Gesteira, Maria de Fátima Malvar. "Estudo da ação do EDTA sobre a camada residual." Programa de Pós- Graduação em Odontologia da UFBA, 2003. http://www.repositorio.ufba.br/ri/handle/ri/10535.
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O êxito da desinfecção do espaço endodôntico depende dos instrumentos endodônticos, das substâncias químicas auxiliares selecionadas e da habilidade técnica no preparo químico mecânico. Concluída a instrumentação, é possível constatar a deposição na superfície dentinária de um extrato de material orgânico e inorgânico de aparência amorfa, superfície irregular e granulosa, denominada camada residual. Diversas substancias químicas, em diferentes concentrações, aplicadas em espaços de tempo pré-estabelecidos são usadas isoladamente, conjugadas ou misturadas, visando a remoção desta camada. Com este estudo buscou-se analisar, in vitro, através da Microscopia Eletrônica de Varredura, o efeito do EDTA nas concentrações de 3%, 5%, 10% e 17%, na remoção da camada residual e na desobstrução dos túbulos dentinários, nos tempos de 1 e 3 minutos. Da amostra constituída de 80 dentes, foram selecionados randomicamente, 8 unidades para compor o grupo controle negativo (GC1) e 8 para constituírem o grupo controle positivo (GC2). Os 64 restantes, compuseram os 8 Grupos Experimentais(GExp.). Após a instrumentação do canal radicular foi realizada a irrigação final com as soluções de EDTA em teste, sendo considerados os tempos de 1 minuto e 3 minutos de permanência deste em contato com a superfície dentinária. A análise das fotomicrografias com magnitude de 2000X, revelam que as soluções de EDTA a 10% e 17% foram as mais eficazes, independente dos tempos de aplicação pré-determinados. Constatou-se também que o terço apical apresentou grau de limpeza inferior aos terços cervical e médio
Salvador
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Graça, Maria de Nazaré Faria Varelas. "Comportamentos de transgressão em Edna O'Brien : leituras e perspectivas." Master's thesis, Universidade de Aveiro, 2006. http://hdl.handle.net/10773/2767.
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Mestrado em Estudos InglesesA adopção da Comunicação Não Verbal como uma estratégia narrativa usada pela escritora irlandesa Edna O’Brien na trilogia The House of Splendid Isolation (1994), Down by the River (1996) e Wild Decembers (1999) constituiu o ponto de partida para a elaboração da presente dissertação. As áreas da Comunicação Não Verbal como a linguagem cinestésica ou a proxémica (a percepção do espaço e o uso que dele fazemos) revelaram-se pertinentes para a análise da referida trilogia. É, igualmente, objectivo deste trabalho problematizar algumas questões que se prendem com a expressão da voz e da experiência no feminino. O corpo, portador de significação, deve ser lido como um texto que oferece uma multiplicidade de leituras e de diferentes perspectivas. Neste contexto, a expressão da voz e da experiência feminina passa necessariamente pela linguagem corporal, assumindo-se como uma alternativa ao discurso patriarcal. A exploração das potencialidades que o corpo oferece como portador de significado e como elemento de ruptura do discurso dominante será também motivo de análise e de discussão neste trabalho. ABSTRACT: The main purpose of this work is to analyse the trilogy, The House of Splendid Isolation (1994), Down by the River (1996) and Wild Decembers (1999) by the Irish writer Edna O’Brien, highlighting the role of Non Verbal Communication as a narrative strategy which reveals women’s voice and experience. It will also be discussed how body language and proxemics are cunnily used by O’Brien as means to convey the idea that women have a discourse of their own which assumes itself as an alternative to the patriarchal one. The body portrays meaning and it should be read as a meaningful text. The multiplicity of readings and perspectives that are offered are quite interesting and enriching. This dissertation will basically offer personal readings of the above trilogy as well as an opportunity to discuss the potentialities of body language as a way of asserting women’s identity and self expression.
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Sturaro, Gabriela Arantes da Conceição. "Avaliação da capacidade de limpeza e quantificação da relação amida III/fosfato da superfície de dentina após o tratamento com quitosana/genipina." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/58/58133/tde-21052018-150255/.
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O presente estudo avaliou, por meio de microscopia eletrônica de varredura (MEV) e análise Fourier Transform Infrared Spectroscopy (FT-IR), a capacidade de limpeza e as alterações da superfície dentinária após diferentes tratamentos. Foram utilizados 32 incisivos bovinos, dos quais obteve-se uma amostra de dentina do terço médio radicular de cada espécime. Inicialmente as 32 amostras foram analisadas em FT-IR após os seguintes tratamentos: dentina normal, sem tratamento (T1); NaOCl 2,5% por 5´ (T2). Os espécimes foram, então, distribuídos em quatro agrupamentos conforme tratamento com soluções (n=8): T3- EDTA 15%; T4- quitosana 1% diluída em ácido acético 1% + genipina 0,06%; T5- quitosana 1% diluída em ácido acético 1% + EDTA 15% + genipina 0,06%; T6- quitosana 1% diluído em EDTA 5% + genipina 0,06%. Os dados referentes a relação amidaIII/fosfato de cada tratamento foi submetida ao teste ANOVA, com dados vinculados seguido do teste de Tukey (p<0,001). Para a avaliação em MEV, após biomecânica de 8 raízes bovinas com limas rotatórias e NaOCl 2,5%, as mesmas foram distribuídas em 4 grupos (n=2), conforme irrigação final. As soluções utilizadas em G1, G2 G3 e G4 foram, respectivamente, as mesmas empregadas em T3, T4, T5 e T6, com volume de 1mL por 5´. Foram obtidas 6 fotomicrografias do terço médio radicular de cada espécime para análise da capacidade de limpeza e da deposição de quitosana/genipina sobre a superfície dentinária. Os resultados mostraram não haver diferença na porcentagem da razão amidaIII/fosfato entre T1 e T2. Houve diferença significante entre a porcentagem da razão amidaIII/fosfato de T3, T4, T5 e T6 em relação à T1. A porcentagem da razão amidaIII/fosfato foi significantemente menor para T4 em relação a T3, T5 e T6. Todos os grupos, com exceção de G2, removeram a camada de smear. Observou-se deposição de quitosana/genipina sobre a dentina do G3 e G4. Dentre os tratamentos propostos, o uso de quitosana solubilizada em EDTA associada à genipina removeu a camada de smear sem erudir o tecido, além de evidenciar a presença de aglomerado de quitosana/genipina sobre a superfície dentinária.The present study evaluated, by scanning electron microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FT-IR) analysis, the cleaning ability and the changes of the dentin surface after different treatments. Thirty-two bovine incisors were used, from which a dentin sample was obtained from the middle third of each specimen. Initially the 32 samples were analyzed in FT-IR after the following treatments: normal dentin, without treatment (T1); NaOCl 2.5% by 5\' (T2). The specimens were then distributed into four groups according to treatment with solutions (n = 8): T3- EDTA 15%; T4- chitosan 1% diluted in acetic acid 1% + genipine 0.06%; T5- chitosan 1% diluted in acetic acid 1% + EDTA 15% + genipine 0.06%; T6 chitosan 1% diluted in 5% EDTA + 0.06% genipine. The data concerning the amideIII / phosphate ratio of each treatment was submitted to the ANOVA test, with bound data followed by the Tukey test (p <0.001). For evaluation in SEM, after biomechanics of 8 bovine roots with rotating files and 2.5% NaOCl, they were distributed in 4 groups (n = 2), according to final irrigation. The solutions used in G1, G2, G3 and G4 were, respectively, the same as those employed in T3, T4, T5 and T6, with a volume of 1mL per 5\'. Six photomicrographs of the root mean third of each specimen were obtained for analysis of the cleaning capacity and chitosan/genipine deposition on the dentin surface. The results showed no difference in the percentage of the amide III/phosphate ratio between T1 and T2. There was a significant difference between the percentage of amide III/phosphate ratio of T3, T4, T5 and T6 in relation to T1. The percentage of the amide III/phosphate ratio was significantly lower for T4 compared to T3, T5 and T6. All groups, except for G2, removed the smear layer. Chitosan/genipine deposition was observed on G3 and G4 dentin. Among the proposed treatments, the use of chitosan solubilized in EDTA associated to genipine removed the smear layer without erode the tissue, besides evidencing the presence of agglomerate of chitosan/genipine on the dentin surface.
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Quinlan, Meghan. "Contextualising the contrafacta of trouvere song." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:de48756e-ed5a-4ffd-8ce2-c44dcc31ab74.
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Scholarship on medieval contrafacture has long been engaged in the Kontrafakturjagd, the hunt for songs whose textual and structural similarities suggest they might also share melodies. By making melodies freely exchangeable, this practice has tended to treat the music of medieval song as if it were an empty vessel, overlooking the ways in which contrafacta might construct musical meaning to serve various political, devotional, or aesthetic ends. Rather than making a case for contrafacture among songs whose shared melodies are questionable, this dissertation provides a context rich perspective on certain groups of 'close contrafacta' - songs whose status as contrafacta is already known and supported by strong musical, textual, and contextual evidence. In five case studies, all of which take at least one song from the trouvère repertory, and which represent the most common contrafact genres - political serventois, Marian song, and crusade song - I consider the ways in which their melodies could signify. More specifically, I examine the interrelated layers of the melody's performed sound structures, its cuing of previous texts on the listener, and its integration of old and new contexts. The case studies reveal a culture that cared about melodic association and used it in sophisticated ways. In the first two chapters, which address political contrafacture, the music's textual associations form a background against which the contrafact text reacts ironically, while its melodic origins evoke precise geopolitical loyalties or antagonisms. The third and fourth chapters on Marian song, conversely, point toward efforts to intensify and develop a song's meaning through contrafacture, while the fifth chapter's contrafact text cites its own affective reason for melodic re-use. In all case studies, not only does the music cue text and context synoptically; its performed structures also intensify and subvert textual meanings, showing how music can enrich literary interpretations of medieval song.
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Ernst, Sven. "Studying the altered reactivity of electrochemical systems in room temperature ionic liquids." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:b865be7b-ed4a-4983-b407-6e4cb27aad4f.
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The work presented in this thesis examines the electrochemical behaviour of a number of species, both surface-bound and in the solution phase, in various room-temperature ionic liquids (RTILs), in order to identify systems which show altered reactivities in room-temperature ionic liquids, compared to that in conventional, molecular, aprotic solvents. The fundamentals of electrochemistry are outlined and an introduction to room-temperature ionic liquids is given, after which the results of six original investigations are presented, as follows; The electrochemical response of surface-bound anthraquinonyl films was investigated as a function of RTIL cation size. The reduction of oxygen to superoxide in the [C2mim][NTf2] RTIL was studied at different carbon electrodes. The mechanisms of electrodeposition and stripping of Zn(II) onto bulk zinc deposits, on glassy carbon electrodes, in the [C4mPyrr][NTf2] RTIL were investigated. A novel and successful method for the fabrication of zinc microdisk electrodes was developed and the electrochemical behaviour of these electrodes was investigated. The mechanisms for the electrochemical reductions of some bromo- and nitrobenzenes at platinum microelectrodes were determined in the [C4mPyrr][NTf2] ionic liquid, in order to identify systems which displayed changed reactivities in RTILs compared to those in molecular aprotic solvents. The altered reactivity of 1-bromo-4-nitrobenzene in the [C4mPyrr][NTf2] ionic liquid was utilised via electrochemical reduction at zinc microelectrodes in order to form arylzinc compounds. The work presented in this thesis shows that the oft-taken view that the reactivity of a given species in an ionic liquid will mimic that in conventional aprotic solvents is not always the case. Reactivities can be markedly different between RTILs and aprotic solvents and can also be highly dependent on the specific ionic liquid employed.
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Zhou, Chao. "INCERTITUDE SUR LES MODELES EN FINANCE ET EQUATIONS DIFFERENTIELLES STOCHASTIQUES RETROGRADES DU SECOND ORDRE." Phd thesis, Ecole Polytechnique X, 2012. http://pastel.archives-ouvertes.fr/pastel-00771437.
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L'objectif principal de cette thèse est d'étudier quelques problèmes de mathématiques financières dans un marché incomplet avec incertitude sur les modèles. Récemment, la théorie des équations différentielles stochastiques rétrogrades du second ordre (2EDSRs) a été développée par Soner, Touzi et Zhang sur ce sujet. Dans cette thèse, nous adoptons leur point de vue. Cette thèse contient quatre parties dans le domain des 2EDSRs. Nous commençons par généraliser la théorie des 2EDSRs initialement introduite dans le cas de générateurs lipschitziens continus à celui de générateurs à croissance quadratique. Cette nouvelle classe des 2EDSRs nous permettra ensuite d'étudier le problème de maximisation d'utilité robuste dans les modèles non-dominés. Dans la deuxième partie, nous étudions ce problème pour trois fonctions d'utilité.Dans chaque cas, nous donnons une caractérisation de la fonction valeur et d'une stratégie d'investissement optimale via la solution d'une 2EDSR. Dans la troisième partie, nous fournissons également une théorie d'existence et unicité pour des EDSRs réfléchies du second ordre avec obstacles inférieurs et générateurs lipschitziens, nous appliquons ensuite ce résultat à l'étude du problème de valorisation des options américaines dans un modèle financier à volatilité incertaine. Dans la quatrième partie, nous étudions des 2EDSRs avec sauts. En particulier, nous prouvons l'existence d'une unique solution dans un espace approprié. Comme application de ces résultats, nous étudions un problème de maximisation d'utilité exponentielle robuste avec incertitude sur les modèles. L'incertitude affecte à la fois le processus de volatilité, mais également la mesure des sauts.
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Wittchen, Hans-Ulrich, Axel Perkonigg, Gabriele Lachner, and Christopher B. Nelson. "Early Developmental Stages of Psychopathology Study (EDSP): Objectives and Design." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-99977.
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The primary and secondary objectives of the Early Developmental Stages of Substance Abuse Study (EDSP) are described along with a detailed description of the overall design, special design features and instruments used. The EDSP is a 5-year prospective study with three waves of assessments. Special design features are the linkages with family genetic investigations as well as neuroendocrinological stress tests in high-risk subjects. Overall, 3,021 adolescents and young adults aged 14–24 years are included. The response rate for the baseline investigation was 71%. Diagnostic assessments were made by using a modified lifetime (baseline) and 12-month change version of the WHO-CIDI, adjusted for DSM-IV. Modifications refer to a more detailed quantitative assessment of symptoms and substance use variables as well as the inclusion of questions to assess course of disorders and subthreshold diagnostic conditions.
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Bellalta, Boris. "Flow-level QoS guarantees in IEEE 802.11e EDCA-based WLANs." Doctoral thesis, Universitat Pompeu Fabra, 2007. http://hdl.handle.net/10803/7539.
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Les xarxes WLANs possibiliten un accés de banda ampla a Internet des d'un terminal mòbil, essent una possible solució alternativa a les
xarxes cel·lulars. Tanmateix, aquest tipus de tecnologia presenta certes
limitacions, com és la difícil coexistència entre fluxos de tràfic
rígids (VoIP) i fluxos de tràfic elàstic (TCP), degut al propi protocol
d'accés al medi. En aquesta tesi es proposa la utilització d'un nou
mecanisme de control d'admissió que utilitzant el nou estàndard de
qualitat de servei en xarxes WLAN (EDCA). La utilització del mecanisme
de control d'admissió millora notablement les prestacions que es poden
obtenir de la xarxa, solucionant les diferents limitacions de la
tecnologia. Per a l'avaluació i optimització del mecanisme de control
d'admissió s'ha desenvolupat un conjunt d'eines matemàtiques que
permeten capturar tant la dinàmica del protocol d'accés com el
comportament dels diferents fluxos de tràfic multimèdia que s'han
consideren (VoIP i tràfic elàstic, TCP).
WLANs provide a broadband access to Internet from a mobile terminal,
which can be a possible alternative solution to cellular networks.
However, this technology presents several limitations, as it is the
difficult coexistence between rigid traffic flows (VoIP) and elastic
traffic flows (TCP), due to the medium access protocol itself. In this
thesis a new admission control mechanism is proposed. It uses the set of
QoS mechanisms provided by the new EDCA standard. The use of the
proposed admission control mechanism improves the overall WLAN
performance, solving the different technology limitations. In order to
be able to evaluate and optimize the admission control mechanism,
several mathematical tools have been developed in order to capture the
dynamics of both, the access protocol and of the different multimedia
traffic flows that have been considered.
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Wiermer, Marcel. "Molecular and spatial characterisation of Arabidopsis EDS1 defence regulatory complexes." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=97655223X.
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Habiba, Ben Mansour. "Réaction aqueuse entre EDTA-Fe-Na et le phosphate supertriple." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq33569.pdf.
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Wittenstein, Rebecca. "Renascence the rebirth of Edna St. Vincent Millay and sentimentalism /." Diss., Connect to the thesis, 2007. http://hdl.handle.net/10066/1066.
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Holm, Ronda Marie. "Edna Pontellier's Impossible Dream: Fantasy and Reality in "The Awakening"." W&M ScholarWorks, 1996. https://scholarworks.wm.edu/etd/1539626055.
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THOMAS, DJEISSON HOFFMANN. "CONTROL SYSTEM TO SUPPRESS GAIN DYNAMIC INSTABILITIES OF AN EDFA." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=3954@1.
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOERICSSON DO BRASIL
Objetivando suprimir as instabilidades dinâmicas de ganho em um amplificador à fibra dopada com Érbio (EDFA), uma nova configuração de laser em anel é apresentada e demonstrada. Neste trabalho, analizamos os efeitos da variação do nível de atenuação no laço de re-alimentação sobre a resposta transitória do EDFA. Particularmente, observamos as excursões de ganho experimentadas pelo canal sobrevivente quando sete dentre oito canais da rede são adicionados ou removidos, à exemplo do que ocorre em sistemas WDM reais. Sob esta análise, avaliamos o desempenho do sistema em suprimir as instabilidades dinâmicas de ganho do EDFA.
A new ring laser configuration to eliminate the gain dynamic instabilities of an erbium doped fiber amplifier (EDFA) is proposed and demonstrated. We examine the effect of the attenuation level in the optical feedback path over thetransient response of the EDFA. In particular, we look at the transient gain excursions experienced by surviving channel when seven of eight channels are added or dropped, like in real WDM systems. Using this analysis as a guide, we highlight the robustness of the approach and evaluate its performance to EDFA gain stabilization.
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Wong, Joseph S. H. (Joseph Sze Hsuan). "EDTA-enhanced metal contaminant removal from soils by electric fields." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36053.
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Wittchen, Hans-Ulrich, Axel Perkonigg, Gabriele Lachner, and Christopher B. Nelson. "Early Developmental Stages of Psychopathology Study (EDSP): Objectives and Design." Karger, 1998. https://tud.qucosa.de/id/qucosa%3A26273.
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The primary and secondary objectives of the Early Developmental Stages of Substance Abuse Study (EDSP) are described along with a detailed description of the overall design, special design features and instruments used. The EDSP is a 5-year prospective study with three waves of assessments. Special design features are the linkages with family genetic investigations as well as neuroendocrinological stress tests in high-risk subjects. Overall, 3,021 adolescents and young adults aged 14–24 years are included. The response rate for the baseline investigation was 71%. Diagnostic assessments were made by using a modified lifetime (baseline) and 12-month change version of the WHO-CIDI, adjusted for DSM-IV. Modifications refer to a more detailed quantitative assessment of symptoms and substance use variables as well as the inclusion of questions to assess course of disorders and subthreshold diagnostic conditions.
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Bezerra, Adriana Gomes. "LITERATURA, HISTÓRIA E MEMÓRIA NA OBRA DE EDLA PACHECO SAAD." Pontifícia Universidade Católica de Goiás, 2009. http://localhost:8080/tede/handle/tede/3171.
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Previous issue date: 2009-03-05The proposal that this work developed was guided in a reading of Edla Pacheco s workmanship like a hybrid text, which is possible the confluence between history, fiction and memory, in seeking to revise the past to the understanding the present, its became a significant document for analysis of this. In proposing an analysis of interdiscurses that composed the work, literature is used as an important means for the knowledge construction. The Edla Pacheco s whole workmanship establishes a dialogue between history and fiction that incite the reader participate actively at the building of the sense of the text from their experiences. Her work reveal the problems, the habits and customs of a goiana typically society in the end of the nineteenth century, and teased the precarious survival conditions in those time. Selected for this work the novels Zaca and Paredes Cinzentas with the primary objective to demonstrate the importance of literature as a way of reconstructing the pass and even the social world, in particular apply this knowledge to the regional reality, in order to contribute to the understanding of some aspects of goiana society. The readers of the research that follows should sustain the assertions that Edla Pacheco is not intended to prove anything, your project is mimetic, and she pretend to compose the man actions panel in a time a that between the test and history are memoris interference and multiple their relationship is inseparable and intrinsic. The study that follows is an analysis focus on the historical extraction narrative.
A proposta que este trabalho desenvolveu esteve orientada na leitura da obra de Edla Pacheco, como texto híbrido, no qual se encontra a possibilidade de confluência da história, ficção e memória, na busca de revisão do passado para a compreensão do presente, tornando-se um significativo documento de análise. Ao propor uma análise dos interdiscursos que compõem a referida obra, literatura é utilizada como um importante meio para a construção do conhecimento. A obra reunida de Edla Pacheco estabelece um diálogo entre a história e a ficção que instiga o leitor a dar a estas um novo sentido em seu presente. Essa é a tarefa do leitor: participar ativamente da construção do sentido do texto a partir de suas experiências. Tais obras revelam as mazelas, os usos e costumes de uma sociedade tipicamente goiana do final do século XIX, e esmiúça as condições de sobrevivência precária da época. Selecionou-se para este trabalho as obras Zaca e Paredes Cinzentas tendo como principal objetivo demonstrar a importância da literatura como forma de reconstrução do passado e até mesmo do mundo social, sobretudo, aplicar esse conhecimento à realidade regional, de forma a contribuir para o entendimento de alguns aspectos da sociedade goiana. Os leitores desta pesquisa devem se amparar nas afirmações de que Edla Pacheco não pretende provar nada, seu projeto é mimético. Ela se atém a compor um painel das ações do homem de uma época uma vez que entre o texto memorialístico e a história existem interferências múltiplas e suas relações são inseparáveis e intrínsecas. O estudo que se segue é uma análise que se centra na narrativa de extração histórica.
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Martini, Márcia da Mota Jardim. "Otimização de amplificadores híbridos RAMAN+EDFA utilizando reciclagem de bombeamento." Universidade Tecnológica Federal do Paraná, 2010. http://repositorio.utfpr.edu.br/jspui/handle/1/1058.
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CAPESNeste trabalho são estudadas configurações de amplificadores híbridos compostos por amplificador Raman em cascata com EDFA, a serem utilizados na expansão da capacidade de sistemas de comunicações óticas utilizando WDM. Foi realizado, mediante simulação em um pacote comercial, um estudo do desempenho de diferentes esquemas desses amplificadores híbridos Raman+EDFA, em termos do ganho global, ondulação (ripple) e figura de ruído. A flexibilidade do perfil espectral do amplificador Raman pode ser combinada com a alta capacidade de potência de saída do EDFA para obter aplicações de amplificadores híbridos banda larga. Este trabalho aplica uma nova técnica de otimização de amplificador híbrido Raman+EDFA para aplicações WDM. É utilizado o modelo de aproximação analítica com menor tempo de cálculo, para determinar o perfil espectral do estágio de amplificação Raman. A otimização foi realizada para uma configuração de amplificador híbrido Raman+EDFA utilizando uma fibra compensadora de dispersão (DCF) com múltiplos lasers de bombeamento no estágio Raman. A otimização foi focada no ganho global e na ondulação do amplificador híbrido resultante. Os resultados demonstraram que o amplificador híbrido Raman+EDFA com reciclagem de bombeamento residual Raman, combinado com uma seleção apropriada de potências e comprimentos de onda dos lasers de bombeamento Raman, possibilita a obtenção de amplificadores híbridos banda larga com maior eficiência de conversão de potência, ganho alto e plano. Os resultados também mostraram ganhos médios maiores, menor ondulação e largura de banda maior que os encontrados na literatura. Tais resultados podem contribuir para um melhor conhecimento das vantagens e desvantagens de amplificadores híbridos utilizados em enlaces óticos.
In this work different configurations of hybrid amplifiers are studied, made by a Raman amplifier followed by an EDFA. Such amplifiers can be used to increase the transmission capacity in WDM based optical communication systems. The performance of different hybrid EDFA+Raman amplifiers is obtained using commercial software. Their performance is analyzed in terms of the global gain, ripple and noise figure. The design and development of new configurations of fiber amplifiers, such as Raman and erbium-doped fiber amplifiers operating in a combined system that allows recycling pump power, contributes to minimize the energy consumption of the entire transmission system. Raman amplifiers can be used along with the EDFA high output power capacity to add spectral shaping flexibility for broadband applications. This work applies a new technique to optimize Raman+EDFA hybrid amplifiers for WDM applications. It uses an analytical approximated model to determine the spectral shaping of the Raman gain stage avoiding the time-consuming process of spectral profile optimization. The optimization has been carried out on a hybrid Raman+EDFA amplifier configuration, using dispersion compensating fiber with multiple pump lasers in the Raman amplification stage. The optimization has focused on the global gain and its ripple factor for the hybrid amplifier. Results demonstrated that the Raman+EDFA hybrid amplifier under recycling residual Raman pump, allied with the proper selection of pump wavelengths and powers, enables the construction of broadband amplifiers with enhanced power conversion efficiency and high and flat gains. Results also show average high gain, lower ripple, and higher bandwidth than those found in the literature. Such results can contribute to a better knowledge of the advantages and drawbacks of hybrid Raman/EDFA amplifiers in optical links.
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Santos, Maria de Lourdes Rodrigues dos. "A violência urbana na obra ficcional de Edla Van Steen." Florianópolis, SC, 2004. http://repositorio.ufsc.br/xmlui/handle/123456789/88033.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em LiteraturaMade available in DSpace on 2012-10-22T04:58:15Z (GMT). No. of bitstreams: 1 209125.pdf: 941896 bytes, checksum: 9f4430b53af0eec7774f0ff4e1e17bd9 (MD5)
Esta dissertação de mestrado foi concebida sob a perspectiva de análise sociológica da obra ficcional de Edla van Steen. As reflexões abrangem desde a literatura de denúncia do regime repressivo ao conjunto de ações violentas do cotidiano das grandes cidades.
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BENINCA, M. O. L. "Análise Sistêmica e Cascateamento de Amplificadores Ópticos - Raman e EDFA." Universidade Federal do Espírito Santo, 2012. http://repositorio.ufes.br/handle/10/9622.
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tese_4706_Dissertacao_Matheus Oggioni.pdf: 903174 bytes, checksum: fbb05c0762c8859b06b11f9918f6d276 (MD5)
Previous issue date: 2012-12-10Neste trabalho apresenta-se um estudo sobre os amplificadores ópticos híbridos EDFA e Raman. São definidos alguns conceitos destes amplificadores individualmente, tais como modo de operação, ganho e ruído. Quando operando em conjunto o HA pode ser classificado quanto a composição de ganho e modo de operação dos amplificadores. Os códigos computacionais de simulação destes amplificadores são caracterizados quanto a sua funcionalidade e uma interface gráfica para simulação de amplificadores Raman é apresentada. A GUI possibilita otimização da escolha dos comprimentos de onda dos lasers de bombeio e suas potências. Apresenta fer- ramenta para análise das curvas de ganho e variação de ripple e possibilita a simulação de diferentes fibras ópticas em diversas combinações de sinais e comprimento de fibra. Foi reali- zado um estudo de caso de um enlace WDM contendo um EDFA e aproveitando a flexibilidade do perfil espectral de ganho do amplificador Raman para obter uma aplicação de amplificadore híbrido de banda larga contínua. São 40 canais W DM operando nas bandas C e L, com 65 nm de largura de banda, ripple de 2 dB e enlaces de 90 km, 120 km, 150 km e 180 km de uma fibra SMF. Este trabalho complementa o estudo de amplificadores híbridos apresentando uma de suas aplicações com resultados de ganho, OSNR, NF e ripple.
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Norén, Katarina. "Coordination Chemistry of Monocarboxylate and Aminocarboxylate Complexes at the Water/Goethite Interface." Doctoral thesis, Umeå University, Chemistry, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1337.
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This thesis is a summary of five papers with focus on adsorption processes of various monocarboxylates and aminocarboxylates at the water/goethite interface. Interaction of organic acids at the water/mineral interfaces are of importance in biogeochemical processes, since such processes have potential to alter mobility and bioavailability of the acids and metal ions.
In order to determine the coordination chemistry of acetate, benzoate, cyclohexanecarboxylate, sarcosine, MIDA (methyliminediacetic acid), EDDA (ethylenediamine-N,N’-diacetic acid) and EDTA (ethylenediamine-N,N’-tetraacetic acid) upon adsorption to the goethite (alpha-FeOOH) surface, a combination of quantitative measurements with attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was utilized.
Over the pH range studied here (pH 3- 9) all ligands, except for sarcosine, have been found to form surface complexes with goethite. In general, theses were characterized as outer sphere surface complexes i.e. with no direct interaction with surface Fe(III) metal ions. Furthermore, two types of different outer-sphere complexes were identified, the solvent-surface hydration-separated ion pair, and hydration-shared ion pair. For the monocarboxylate surface complexes distinction between these two could be made. At high pH values the solvent-surface hydration-separated ion pair was the predominating complex, while at low pH the surface complex is stabilized through the formation of strong hydrogen bonds with the goethite surface. However, it was not possible to clearly separate between the two outer-sphere complexes for coordination of the aminocarboxylates with the surface of goethite. Additionally, EDDA also formed an inner-sphere surface complex at high pH values. The EDDA molecule was suggested to coordinate to the surface by forming a five membered ring with an iron at the goethite surface, through the amine and carboxylate groups.
Contrary to the other ligands studied, EDTA significantly induced dissolution of goethite. Some of the dissolved iron, in the form of the highly stable FeEDTA- solution complex, was indicated to re-adsorb to the mineral surface as a ternary complex. Similar ternary surface complexes were also found in the Ga(III)EDTA/goethite system, and quantitative and spectroscopic studies on adsorption of Ga(III) in presence and absence of EDTA showed that EDTA considerably effects speciation of gallium at goethite surface.
The collective results in this thesis show that the affinity of these ligands for the surface of goethite is primarily governed by their chemical composition and structure, and especially important are the types, numbers and relative position of functional groups within the molecular structure.
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Martins, Jean Paulo. "Análise da aprendizagem de ligações em otimização evolutiva." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-14092015-140718/.
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A suposta ubiquidade de sistemas decomponíveis foi interpretada por Holland (1975) como o principal motivo para o desempenho dos algoritmos genéticos (Genetic Algorithms (GAs)). A hipótese de Building Blocks (BBs) sugere que algoritmos genéticos mais eficientes poderiam ser implementados, contudo, apenas anos depois essas ideias puderam ser avaliadas experimentalmente no contexto de algoritmos de estimação de distribuição (Estimation of Distribution Algorithms (EDAs)). EDAs utilizam modelos probabilísticos, estimados a partir da população, para inferir características do espaço de busca que poderiam ser utilizadas para implementar operadores de reprodução mais eficazes. Tanto em problemas mono- quanto multi-objetivo, EDAs emergiram sob a premissa de que a eficácia dos operadores de reprodução seria proporcional à representatividade dos modelos probabilísticos utilizados. No entanto, estudos recentes tem demonstrado que a dificuldade em se construir modelos confiáveis pode tornar essa premissa inviável. Ou seja, para certos problemas de otimização os modelos probabilísticos utilizados seriam, em geral, de baixa qualidade e, portanto, não produziriam operadores eficazes. Esta tese trata das limitações encontradas na construção de modelos probabilísticos (linkage learning) sob a perspectiva da multimodalidade dos problemas em questão. A análise teórica considerou problemas aditivamente separáveis, enquanto a generalização das conclusões foi investigada em instâncias do modelo NK-landscapes e do problema da mochila multidimensional (Multidimensional Knapsack Problem (MKP)). Os resultados indicaram que a acurácia dos modelos probabilísticos é se relaciona inversamente ao grau de multimodalidade da função objetivo e que, em casos de extrema multimodalidade a construção de modelos probabilísticos confiáveis pode ser tornar infactível. Este resultado poderia inviabilizar o uso de EDAs no contexto multiobjetivo, devido a intrínseca multimodalidade de tais problemas. No entanto, observou-se que apesar da ausência de estatísticas confiáveis sobre cada uma das funções objetivo, a correlação entre elas se torna estatisticamente observável e útil aos operadores de reprodução na manutenção da diversidade e controle convergência da população.The supposed ubiquity of nearly-decomposable systems was interpreted by Holland (1975) as the rationale for the performance of Genetic Algorithms (GAs), the Building Block (BB) hypothesis. His seminal studies suggest more efficient GAs as viable, but only later on his ideas have become practically tangible in the context of Estimation of Distribution Algorithms (EDAs). EDAs employ probabilistic modeling so as to infer properties of the search space (BBs) that could be useful for the effectiveness of reproduction operators. In both, single- and multi-objective contexts, EDAs have emerged on the assumption there is a correlation between how much information a model can conceive and how effective reproduction operators can be. However, more recent results suggest the difficulties in producing accurate linkage models can prevent such a relation to be true. In other words, for some optimization problems linkage learning might not be able to produce accurate linkage models, hence EDAs would not outperform GAs. This thesis addresses the limits of linkage learning in the context of single- and bi-objective problems, regarding the influence of multimodality on the accuracy of the linkage models and the efficiency of EDAs. A theoretical analysis was performed in terms of additively separable functions and general conclusions are assessed through experimentation with instances of the NK-model and the Multidimensional Knapsack Problem (MKP). The results indicated that the accuracy of the linkage models tends to decrease as a result of increasing multimodality, which weakens pairwise dependencies and might lead to pairwise independence in extreme cases. Since most EDAs rely on bivariate statistics to estimate multivariate distributions, their applicability is limited to optimization problems within a certain range of multimodality. In multi-objective problems, on the other hand, some EDAs have shown better performance than GAs, which seemed as a contradiction since multi-objective problems are inherently multimodal. Our results suggest that in such cases the correlation among the objective functions becomes statistically evident, as a consequence, linkage learning models such correlation instead of problems substructures, which is useful to obtain a better exploration of extreme regions of the objective space.
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Chang, Zhi-Cheng, and 張志誠. "Application of EDTA-degrading bacterium to Metal-EDTA on Wastewater Treatment." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/81355112020777017583.
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碩士國立雲林科技大學
環境與安全工程系碩士班
92
EDTA (ethylenediaminetetraacetic acid), the target compound of this study from the effluent of secondary biotreatment units and waste liquid, can be biodegraded by special microorganisms. We also have successfully isolated a bacterial strain that can degrade EDTA in our laboratory. This bacterium was identified Burkhol epacia YL-6. So this study focuses YL-6 applied to EDTA wastewater treatment, significantly promoted EDTA by using the YL-6 bioaugmentation agent to accumulation the activated sludge. So we try to apply the bacterium to the Cu-EDTA and wastewater in a PC board plant. Hope can solve higher COD problem in the system from EDTA. The experiment of EDTA degradation was performed on a shake flask with the addition of YL-6 bioaugmentation agent. The results showed that the degradation efficiency of Fe-EDTA and Cu-EDTA were 94.8% and 91.5%. The blank with light source can be degraded by light but very slowly, and the degradation efficiency of Fe-EDTA was higher than Cu-EDTA. The degradation test of Fe-EDTA and Cu-EDTA by addition the compound E as the bioaugmentation agent showed that the degradation efficiency were 98.58% and 97.88%, respectively. The degradation efficiency and biomass were significantly promoted by using the compound E as the bioaugmentation agent. The activated sludge and raw wastewater were taken from PC Board wastewater treatment plant. It was cultivated in batch pilot to simulate the degradation of metal-EDTA by the strain of YL-6. The activated sludge from PC Board plant was divided into two sets-experimental set with and contradistinctive set, without YL-6 bioaugmentation agent. In the experimental system of pilot plant, 2 L activated sludge was mixed with 2 L raw wastewater. In order to avoid the death of microorganism which cause by the raw wastewater, the raw wastewater will be pretreated by chemical coagulation to remove the heavy metals. The raw wastewater will be diluted (ratio 20:1) firstly for the adaptation of activated sludge. Then the dilution ration will be 10, 5, 1 and finally the raw wastewater for the accumulation of the activated sludge. At the primary stage of accumulation for the dilution ration (20:1), the growth of the microorganism was inhibited until the 8th days, then the activated sludge reached the steady state. After 2 days, Fe-EDTA can be degraded completely and the residual of Cu-EDTA was 3 mg/L. After 25 days, the residual of COD was 97 mg/L and the removal efficiency was 92.9%. For the contradistinctive set, the removal efficiency of COD was 25.2% and TOC was 90.57%. Similarly, for the dilution ration 10, 5, 1 and raw wastewater, at the beginning of accumulation, the growth was inhibited and increased, the removal efficiency of EDTA, COD and TOC were lower. From the results of the experiment, the step by step accumulation can be used to adapt the bioaugmentation agents YL-6 to the activated sludge system, it can enhance the degradation of Fe-EDTA and Cu-EDTA, but it can’t achieve the effluent standard of COD in shorter time.
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Chiang, Po-Yi, and 江柏嶧. "Recovery of EDTA From Soil Washing Solution With EDTA and Citric Acid." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/70227513180129927019.
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碩士國立宜蘭大學
環境工程學系碩士班
100
The objective of this research was to recovery of ethylenediaminetetraacetic acid (EDTA) from washing solution for washing Cu contaminated soil. We applied two methods to recovery EDTA powder by acidification and alkalization with acidification process from washing solution that including EDTA(30%) and citric acid(70%) solution. In addition, we also evaluation the two-phase soil washing procedure with recycling EC(3:7) solution after washing Cu contaminated soils. Firstly, the recovery of EDTA powder had two methods which were use acification and alkalization with acidification process from EC(3:7) agent, and then added HCl or with HCl in the washing solution, respectively. Secondly, caculation the amount of EDTA powder and observation the amount of copper content change in washing solution. Finally, preparation the mixing agent that used the recovery of EDTA powder(30%) with citric acid(70%) to wash Cu contaminated soil. In addition, the two-phase soil washing method recycling used EC(3:7) solution for washing Cu contaminated soil at primary washing, and secondary washing with distilled water. The results showed that pH value between 1 and 2, the recovery of EDTA powder by acidification were between 66.76 %~78.85 % for 0.25 hr~3 hr; the recovery of EDTA powder by alkalization with acidification were between 55.81 %~76.65 % for 0.25 hr~3 hr. Furthermore, the removal efficiency of Cu by recovery of mixing agent were between 64.48 %~64.78 % and 65.51 %~66.84 % by acidification and alkalization with acidification process, respectively. Additionally, when we conbine secondary washing after primary washing, the copper content in contaminated soil not only meet the Food Crops Agricultural Land Standard Control Levels, but it also achieve the Food Crops Agricultural Land Standard Monitoring Levels in Taiwan.
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Chen, Szu-Lin, and 陳思霖. "Study of EDTA degradation Microorganism." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/69095607667281647244.
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碩士國立雲林科技大學
環境與安全工程技術研究所
88
This research focuses on the isolation of EDTA degradation microorganism from the environment of Taiwan. EDTA is a water soluble compound, and it always discharge with wastewater after using. Although EDTA is not a toxic compound, it posses chelating capacity with toxic heavy metals out from sewage sludge and sediments. That will make a serious problem of water pollution. Up to date, there are only three microorganisms are reported to degrade EDTA in the world. They are gram-negative bacterium BNC1, Agrobacterium sp., and DSM 9103. Recently, one EDTA degradation bacterium was isolated in our laboratory. This bacteria was identified as Burkhol cepacia YL-6. The optimal cultivation condition of YL-6 strain and the culture condition was determined：1000 mg/L Fe-EDTA as the sole carbon source, 750 mg/L (NH2)2CO+(NH4)2SO4 as the nitrogen source, and 1000 mg/L KH2PO4 as the phosphorus source. It was cultured in the temperature of 30 oC as well as pH 7.0, and the specific growth rate is 0.1352d-1. YL-6 can remove 77% COD, 67% TOC and 90% EDTA in 15 days. The degradation test of Cu-EDTA, 300 mg/L FeSO4˙7H2O was added into Cu-EDTA solution, YL-6 can remove 75% COD, 64% TOC and 75% EDTA. A activated sludge system was incubated about one month at EDTA medium, the effluent COD removal efficiency is only 21%; when YL-6 bacteria is added to the activated sludge system, COD removal increases to 87%. This system was also applied to treat Cu-EDTA, the effluent COD removal efficiency is 11% and up to 84% with adding strain YL-6. It prove that YL-6 can work successfully on the treatment for Fe-EDTA and Cu-EDTA. YL-6 strain was cultivated in the fermentor with three different carbon sources such as potassium acetate, ethylamine and Fe-EDTA under optimal condition. It need spend 38 days to obtain the maximum growth, when it use Fe-EDTA as carbon source. For potassium acetate and ethylamine as carbon sources, they only need 76 and 100 hours to obtain the maximum growth. When it incubate to stationary phase, the fermentation broth blended with wheat brans to produce bioaugmentation agents by hot air-dry method. The bioaugmentation agents possess a viable count of 6.8×1011, 4.3×1011 and 8.2×1010 CFU/g product. The bioaugmentation agents of ethylamine as carbon source can degrade 100% EDTA of Fe-EDTA and Cu-EDTA. The bioaugmentation agents of potassium acetate as carbon source can degrade 93 and 90% EDTA of Fe-EDTA and Cu-EDTA, and the bioaugmentation agents of Fe-EDTA as carbon source can degrade 91 and 74% EDTA of Fe-EDTA and Cu-EDTA. Therefore, they can reduce culture time and increase EDTA degradation efficiency by changing the carbon source such as potassium acetate and ethylamine.
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"Análise Ergonômica do Sistema Hipernet Buscando O Aprendizado da Cooperação E da Autonomia." Tese, Programa de Pós Graduação em Engenharia de Produção, 1996. http://www.eps.ufsc.br/teses96/edla/index/index.htm.
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Happ, Edda [Verfasser]. "Analyses of evolutionary algorithms / Edda Happ." 2009. http://d-nb.info/996929614/34.
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Tsai, Meng-Yang, and 蔡孟洋. "Bandwidth Assignment in IEEE 802.11e EDCA." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/52t6r2.
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碩士國立臺北科技大學
電腦與通訊研究所
96
In recent years, IEEE 802.11 WLAN (Wireless Local Area Network) is the most selected technology to construct WLAN. IEEE 802.11 WLAN working with wired network in constructing seamless network is widely used by government, coffee shops, fast food markets…etc., it therefore became more and more important technology. In 2005, IEEE (Institute of Electrical and Electronics Engineers) ratified the standard IEEE 802.11e. It is an amendment of IEEE 802.11-1999. IEEE 802.11e proposes two channel access mechanism: EDCA and HCCA. EDCA is a distributed channel access mechanism, HCCA is a hybrid coordination function controlled channel access mechanism, equipment provider support EDCA in many equipment, otherwise, it is hard to find an equipment that support HCCA. IEEE 802.11e EDCA made some modify based on IEEE 802.11 DCF (Distributed Coordination Function), the main feature of modify is support QoS (Quality of Service). In IEEE 802.11e EDCA, frame is divided into four categories, different categories have different priorities to access channel by using different channel access parameters. This paper proposes a method to adjust these channel access parameters to enhance QoS support of IEEE 802.11e EDCA. Simulation result verifying the proposed method is effective in assign bandwidth, network manager can using the method to further control the QoS of four category of IEEE 802.11e EDCA.
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Meyer-Krapp, Edda [Verfasser]. "Das Klageerzwingungsverfahren / vorgelegt von Edda Meyer-Krapp." 2008. http://d-nb.info/991096339/34.
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