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Dissertations / Theses on the topic 'As Cd'

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Published: 9 March 2023
Last updated: 10 March 2023

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1

Senigon, de Roumefort Ravan de. "Approche statistique du vieillissement des disques optiques CD-Audio, CD-R, CD-RW." Paris 6, 2011. http://www.theses.fr/2011PA066109.

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2

Lemes, Gabriela de Almeida. "EFL CD-ROMs." Florianópolis, SC, 2008. http://repositorio.ufsc.br/xmlui/handle/123456789/91415.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em Letras/Inglês e Literatura Correspondente.
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The study aimed at mapping the types of language activities of two CD-ROMs, one that accompanies the EFL/ ESL coursebook Interchange Third Edition 1 and one that accompanies the EFL/ ESL coursebook Touchstone 2. To achieve this aim, a framework of types of language activities, based on Hughes and Weir, was created. The analysis of the language activities of the CDs consisted of identifying the main features of each activity, comparing them to the features of the activity types described in the framework and finally, categorizing each activity of each CD as one of the activity types of the framework. The results of the analysis showed that the framework was insufficient because some activities in the CDs did not fit any of the types listed. Also, the results showed that Interchange CD-ROM offers more variety in terms of types of language activities, even though there are more activities in Touchstone CD-ROM. Another finding is that in spite of the variety of types of activities, there are an expressive number of Multiple choice activities in Interchange. Finally, neither of the CDs offers writing activities.
Este estudo teve como objetivo mapear os tipos de atividade de língua encontrados em dois CD-ROMs, um que acompanha o livro didático de inglês como língua estrangeira Interchange Third Edition 1 e outro que acompanha o livro didático de inglês como língua estrangeira Touchstone 2. Para atingir este objetivo, uma taxonomia de tipos de atividades de língua, com base em Hughes e Weir, foi criada. A análise das atividades de língua dos CDs consistiu da identificação das principais características de cada atividade, da comparação dessas características com as dos tipos de atividade descritos na taxonomia e finalmente, da categorização de cada atividade dos CDs como pertencente a um certo tipo de atividade dentre aqueles listados na taxonomia. Os resultados da análise mostraram que a taxonomia foi insuficiente porque algumas atividades encontradas nos CDs não puderam ser encaixadas em nenhum dos tipos listados. Além disso, os resultados mostraram que o CD-ROM da série Interchange oferece uma variedade maior de tipos de atividades, apesar de haver mais atividades no CD da série Touchstone. Outra conclusão é que apesar da variedade encontrada na série Interchange, há um expressivo número de atividades de múltipla escolha. Finalmente, nenhum dos CDs traz atividades de produção escrita.
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3

HALOUI, ABDELKRIM. "Contribution a l'etude du systeme ternaire cd-zn-te. Analyse thermodynamique des systemes zn-te, cd-te et cd-cu." Paris 11, 1996. http://www.theses.fr/1996PA112366.

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L'analyse thermodynamique des systemes binaires zn-te, cd-te et cd-cu a ete realisee par les methodes de calcul, base sur l'optimisation des coefficients d'enthalpies libres des phases de chaque systeme. L'etude experimentale a ete effectuee par les methodes d'analyse thermique differentielle, d'analyse calorimetrique differentielle, la radiocristallographie sur poudre et la metallographie. Nous avons mis en evidence la zone de demixtion dans la region riche en zinc du systeme binaire zn-te, la reaction monotectique est observee a 1207c. Les coefficients de l'enthalpie libre de chaque phase des systemes zn-te, cd-te et cd-cu ont ete obtenues, la coherence entre les resultats de calculs et nos donnees experimentales ainsi que ceux de la litterature sont illustres par les differentes courbes calculees. L'influence de la pression sur la forme des diagrammes de phases des systemes zn-te et cd-te a ete aussi examinee. Le systeme ternaire cd-te-zn a fait l'objet de peu de travaux experimentaux par contre, le calcul de ce systeme a attire de nombreux chercheurs. Les quelques informations experimentales dont nous disposons montrent que ce systeme presente une solution solide continue entre les composes cdte et znte. La zone de demixtion liquide-liquide dans la region riche en zinc a ete predit par les moyens de calcul et la lacune de miscibilite a l'etat solide par observation en microscopy electronique. L'etude experimentale de ce systeme a mis en evidence en plus de la presence de la solution solide continue, la lacune de miscibilite a l'etat solide. La zone de demixtion liquide-liquide qui part de la demixtion binaire du systeme zn-te et se renferme sur elle meme. Cette zone depasse legerement l'isoplethe a 10 atomes % de cadmium. Un eutectique ternaire a ete aussi observe a la temperature de 265c dans le quadrilatere cd-zn-znte-cdte. Cette etude ne revele l'existence d'aucun compose defini ternaire
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4

Deleporte, Emmanuelle. "Proprietes optiques d'heterostructures cdte/(cd,zn)te et cdte/(cd,mn)te." Paris 6, 1992. http://www.theses.fr/1992PA066116.

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Deux types d'heterostructures a grand gap ont ete etudies experimentalement par des moyens optiques: cdte/(cd,zn)te et cdte/(cd,mn)te. L'existence de fortes contraintes entre cdte et (cd,zn)te, dues au grand desaccord entre les parametres de maille de ces deux materiaux, et les proprietes magnetiques importantes de cdte/(cd,mn)te sont responsables d'une forte modification de la structure electronique de l'heterostructure. Chacun de ces deux phenomenes tend a transformer la structure de type-i, dans laquelle les electrons et les trous sont localises dans la meme couche, en une structure de type-ii, dans laquelle les electrons et les trous sont localises dans des couches differentes. Au contraire, l'interaction coulombienne existant entre les electrons de la bande de conduction et les trous de la bande de valence tend a localiser les deux types de porteurs dans la meme couche. Un calcul variationnel d'energie de liaison de l'exciton, valable pour des discontinuites de bande de valence faibles, voire negatives, a ete developpe et nous a permis de montrer que les effets excitoniques sur la structure de bande etaient tres importants dans nos heterostructures. L'analyse de la competition entre l'effet des contraintes ou d'un champ magnetique d'une part, et les effets excitoniques d'autre part, sur la structure de bandes nous permet d'interpreter les resultats experimentaux et de donner des indications sur l'offset de bande de valence de ces materiaux
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5

Cribbs, Adam. "The phenotype and function of CD²⁵⁺CD¹²⁷⁻ regulatory T cells in rheumatoid arthritis." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/18039.

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Regulatory T cells control many aspects of the immune system by enforcing dominant negative responses on other immune cells. Defective regulatory T cell function has been linked to many autoimmune diseases, including rheumatoid arthritis. Cytotoxic T lymphocyte antigen 4 (CTLA-4) plays a critical role in the development and function of regulatory T cells. Moreover, CTLA-4 function has been shown to be defective in rheumatoid arthritis; however the exact mechanism by which reduced expression of CTLA-4 leads to an inability of regulatory T cells to suppress effector T cells is still not clear. In this thesis I show that regulatory T cells isolated from peripheral blood of patients with rheumatoid arthritis are unable to suppress the proliferation and IFN-γ cytokine secretion of effector T cells in vitro. This lack of suppression was associated with reduced expression of total and surface CTLA-4. The mechanism underlying this reduction was found to be through methylation of a key CpG in an NFAT binding site within the CTLA-4 promoter. Methylation of this site resulted in reduced NFAT binding, and hence a reduction in CTLA-4 transcription. The observation that epigenetic changes could be responsible, in part, for defective Treg function raises the possibility for therapeutic intervention using methylation inhibitors. CTLA-4 is a known inducer of the immunoregulatory enzyme, indolamine 2,3- dioxygenase (IDO), and in this study it was shown that regulatory T cells from patients with rheumatoid arthritis were unable to induce the expression and enzymatic activity of IDO-1 in co-cultures with antigen presenting cells. CTLA-4 blockade was found to impair the ability of Tregs in co-culture to induce the expression of IDO-1, thereby mimicking the phenotype of a RA Treg. These findings suggest that one of the consequences of the reduced CTLA-4 expression displayed by regulatory T cells in rheumatoid arthritis is a failure to induce IDO expression in antigen presenting cells. This could explain, at least in part, the reduced suppressive capacity of regulatory T cells in rheumatoid arthritis. In addition to CTLA-4, a number of other molecules associated with regulatory T cell suppression such as CREM, CREB, IL-10 and CXCL10 were also found to be dysregulated in regulatory T cells isolated from patients with rheumatoid arthritis. These results suggest that other molecules associated with regulatory T cell suppression may also be epigenetically controlled and provide an insight into the inability of regulatory T cells to maintain immunological homeostasis in patients with RA.
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6

Innarelli, Humberto Celeste. "Preservação de documentos digitais : confiabilidade de midias de CD-ROM e CD-R." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265101.

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Orientadores: Paulo Sollero
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: Este trabalho tem como foco principal a preservação de documentos digitais no âmbito das mídias de CD-ROM e CD-R. Inicialmente, consiste na revisão da literatura de pesquisas e projetos desenvolvidos na área, na análise das mídias de CD-ROM e CD-R em relação a sua estrutura física e lógica, no estudo das variáveis que causam sua degradação, determinando uma relação causa versus efeito e no desenvolvimento de um software de verificação da confiabilidade das mídias, que conta com um modelo de confiabilidade desenvolvido com base na teoria da confiabilidade de sistemas e nos estudos existentes na área. Este software tem funcionalidades de identificação, armazenamento dos dados de mídia e módulos de análise de confiabilidade. Também é abordado neste trabalho uma análise experimental , a qual conta com metodologias de observação visual, observação por microscópio óptico e aplicação do software de verificação da confiabilidade, esta análise serve de base para a compreensão das variáveis relacionadas a confiabilidade e durabilidade das mídias, assim como, na fundamentação de propostas de preservação de documentos digitais No final do projeto é possível mostrar resultados e discuti-los, propor políticas para a preservação de documentos digitais em mídias de CD-ROM e CD-R e demonstrar conclusões e sugestões para próximos trabalhos
Abstract: The main object of this project is the digital documents preservation in the medias of COROM and CD-R. Initially, this project shows literature review of the studies and projects developed in this area, analyzing the medias of CO-ROM and CO-R in relation of physical and logic structure, showing the studies of the variables who degraded these medias. These studies are the bases of cause versus effect and the parameters to development of a software that can determinate a reliability of medias, that has reliability model developed based in system reliability theory and on the studies in this area. This software has functions of identify medias, data storage and module of reliability analysis. Besides, it does also object of this project an experimental analyses, which counts with visual observation methodology, optical observation and application of the software. This analysis is the base to understand the variables related to the reliability and durability of the medias, as well as, the fundament to propose digital documents preservation. At the end of the project is possible to show results, proposes digital documents preservation politics in medias of CD-ROM and CO-R and demonstrate conclusions and suggestions to the next projects
Mestrado
Mecanica dos Sólidos e Projeto Mecanico
Mestre em Engenharia Mecânica
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7

Dupré-Maquaire, Janine. "Spectroscopie moléculaire à 10 μm des molécules toupies symétriques CD₃H et CD₃Cl : spectroscopie Stark de CD₃Cl avec structure hyperfine." Paris 11, 1986. http://www.theses.fr/1986PA112047.

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Les bandes ν₅, ν₃ et ν₆ de CD₃H ont été enregistrées dans la région de 10 μm sur le spectromètre de type SISAM du laboratoire avec une résolution voisine de 0,020 cm-1. Les constantes spectroscopiques du niveau fondamental ont été calculées à l’aide de 1174 différences de combinaison. La bande ν₅ a été analysée suivant un programme de diagonalisation de la matrice énergie de l’état supérieur. 16 paramètres permettent de reproduire les 1169 données expérimentales avec un écart standard de 0,005 cm-1. Les intensités absolues de toutes les raies ont été calculées. Les deux autres bandes en très forte interaction de Coriolis ont été analysées suivant un programme analogue mais prenant en compte jusqu’au 4ème ordre, à côté des autres interactions, l’interaction de Coriolis entre états non dégénéré et doublement dégénéré. 22 paramètres permettent de reproduire les 1648 données expérimentales avec un écart standard de 0,006 cm-1. Les intensités absolues ont été calculées pour toutes les raies. Deux spectres Stark de CD₃Cl montrant pour la première fois la structure hyperfine, ont été attribués grâce à un programme de prédictions prenant en compte simultanément toutes les résonances, dont l’interaction de Coriolis entre les bandes ν₂ et ν₅ de Cd₃Cl ainsi que les contributions diagonales et non diagonales dues à l’effet Stark. La structure hyperfine est calculée comme une perturbation
The ν₅, ν₃ and ν₆ bands of CD₃H have been recorded on the SISAM spectrometer of the laboratory, with a resolution of about 0. 020 cm-1, then assigned. 1174 combination differences led to 8 spectroscopic ground state parameters. The ν₅ band has been analyzed by diagonalization of the upper state energy matrix. 16 spectroscopic constants allowed us to reproduce the 1169 experimental data with a standard deviation of 0. 0047 cm-1. Both the ν₃ and ν₆ bands were processed simultaneously taking into account of the Coriolis interaction between them. The fitting of the 1648 experimental data led to 22 significant spectroscopic constants for the ν₃=1 and ν₆=1 states of cD₃H, with a standard deviation of 0. 006 cm-1. Absolute intensities have been derived for all observed lines in the three bands. Two Stark patterns of CD₃Cl with hyperfine structure have been assigned using a computational program where all resonances including the Stark interaction were simultaneously taken into account. Then the hyperfine doublets were calculated using a perturbation theory
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8

Fladvad, Anton. "Framtiden för CD-skivan som musikformat : En undersökning av CD-formatets roll på musikmarknaden." Thesis, Högskolan Dalarna, Ljud- och musikproduktion, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:du-21025.

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Sedan början på 2000-talet har försäljningssiffrorna för CD-skivan inom musikindustrin varit på nedgång och minskat årligen, samtidigt som de nya digitala formaten har etablerats på den globala marknaden. Men trots många spekulationer, där CD-skivan sedan år tillbaka har stämplats som ett döende musikmedium, tyder försäljningsstatistiken på att CD:n och andra fysiska format fortfarande har en plats på den moderna globala musikmarknaden. I denna undersökning sammanställs försäljningssiffror från världens största musikmarknader, samt Sverige, för att få en tydligare överblick över hur försäljningsfördelningen egentligen ser ut mellan de olika musikformaten. Genom sekundäranalys, kombinerat med Boltanski och Thénevots teori om de olika typer av världar som existerar i vardagen, och deras respektive värdeordningar, analyseras den insamlade datan för att få en ökad förståelse för varför försäljningsfördelningen ser ut som den gör idag, och hur utvecklingen har sett ut under föregående år. Resultatet visar att den globala försäljningsfördelningen under 2014 var jämnt fördelad mellan digitala och fysiska format, med en andel på cirka 46% vardera av den totala globala musikmarknaden. Detta visar att fysiska format, trots en årlig minskning, år 2014 hade en roll på musikmarknaden som, ur försäljningsaspekt, var likvärdig digitala format, och CD-skivan (och även vinylen) kan därför inte ännu anses vara död.
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9

Bruneau, Audrey. "Immunotoxicité des nanoparticules de Cd/S, Cd/Te et d’Ag sur des espèces modèles." Brest, 2011. http://www.theses.fr/2011BRES2015.

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A l'heure actuelle, l'usage des nanoparticules (NP5) est de plus en plus médiatisé. Elles sont maintenant utilisées à grande échelle dans de nombreux domaines, L’objectif principal de cette thèse était donc d’évaluer l’immunotoxicité des NPs de Cd/S, Cd/Te et d’Ag sur 4 espèces modèles: l’humain, la souris, la truite arc en ciel et la moule bleue, Dans le cadre de ces travaux, nous avons défini quatre sou objectifs: 1) déterminer l’impact des NPs sur différentes cellules et systèmes immunitaires 2) évaluer les facteurs influençant la toxicité des NPs; 3) identifier les atteintes mécanistiques de la réponse immunitaire 4) établir la toxicité des NPs en fonction des stress environnementaux. Les résultats du projet ont démontrés que les NPs induisent des altérations des performances du système immunitaire, selon les espèces. De plus, nous avons aussi démontré que cette toxicité était influencée par la chimie, la nature du métal la taille de la NP. Nos résultats ont aussi indiqué une action mécanistique des NPs. Des phénomènes de stress oxydatif, de production d métallothionéines, d’apoptose et de nécrose ont été observés. Enfin des études in situ, en France et au Québec, ont démontré que des organismes déjà sensibilisés par leur milieu de vie sont encore plus sensibles à une exposition aux NPs. Ce projet a contribué à enrichir les connaissances sur la toxicité des NPs selon différents modèles d’études. Ceci a permis d’évaluer la sensïbilité de chaque espèce et les actions mécanistiques des NPs. Les résultats concemant la sensibilité des différents modéles d’animaux pourront étre utilisés dans les prochaines études de risques
Actually, the usage of nanoparticles (NPs) is more and more mediatized. They are used on a large scale in numerous domains. The mail objective of this thesis was to estimate the immunotoxicity of the NPs of Cd/S, Cd/Te and of Ag on 4 model species: human, mouse, rainbow trout and blue mussel. For the project, we defined four sub-objectives: 1) determine the impact of the NPs on various cells and immune systems; 2) estimate factors influencing the toxicity of the NPs; 3) identify mechanistic achievements of the immunizing answer 4 establish the toxicity of the NPs according to environmental stress. The project results demonstrate that the NPs induced immune system performance changes, according study species. Furthermore, we also demonstrated that this toxicity was influenced by the chemistry, the’ nature of the metal and NPs size. Our results also indicated mechanistic impacts of NPs on immune cells. Oxydative stress phenomena, metallothioneines production, apoptosis and necrosis were observed. Finally in situ studies, in France and in Quebec, demonstrated that organisms already sensitized by their life environment are more sensitive to additional exposure of NPs. This project contributed to improve the knowledge on NPs toxicity according to different models species. This allowed to estimate the sensibility of every species on the NPs toxicity mechanism. The results concerning could be used in the future studies of risk assessment
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Dancète, Dominique. "Sur la Cobar construction." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10145.

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Depuis plus de quarante ans, les espaces de lacets iteres posent le redoutable probleme de l'iteration de la construction cobar. Dans ce travail, pour progresser dans ce sujet, nous apportons eclaircissements et complements sur la relation d'adams entre c#*(g(x)) et cobar (c#*(x)), x designant un ensemble simplicial 1-reduit et g le modele simplicial de kan du foncteur espace de lacets. Dans un premier temps, nous clarifions les liens entre la construction cobar et la notion de cochaine de torsion. Nous obtenons ensuite, pour toute suspension 1-reduite x, une reduction de dga-algebres naturelle, simple et explicite entre les dga-algebres c#*(g(x)) et cobar (c#*(x)). Nos resultats permettent, en particulier, de retrouver facilement les resultats de baues pour le calcul de l'homologie du deuxieme espace de lacets d'une suspension 2-reduite et font apparaitre un fait experimental surprenant : l'existence d'une differentielle exotique pouvant remplacer celle d'adams dans la construction cobar.
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Brenholt, Michael A. "The "STEPS" Camp interface CD." Online version, 2002. http://www.uwstout.edu/lib/thesis/2002/2002brenholtm/2002brenholtm.pdf.

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12

Merry, David. "Ancient Greek and Roman Methods of Inquiry into the (Human) Good." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/21535.

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In dieser Dissertation schlage ich eine neue Erklärung dafür vor, warum es in der antiken Philosophie eine tiefe Meinungsverschiedenheit in Bezug auf das menschliche Gute gab. Die Erklärung lautet, dass verschiedene Autoren verschiedene Auffassungen über die Kontexte und die Ziele von Argumenten über das menschliche Gute vertraten. Daraus ergab sich, dass sie nicht dieselben Argumente als gültig anerkannten und daher verschiedene Theorien über das Gute als plausibel erachteten. Die Texte, mit denen sich in erster Reihe beschäftigt wird, sind: Platons Gorgias und Philebos; Aristoteles’ Topik und Nikomachische Ethik, Senecas Epistulae Morales 82, 83, 87 und 120; Epikurs Brief an Menoikeus, Lukrez’ De Rerum Natura, Sextus’ Grundzüge der pyrrhonischen Skepsis.
In this dissertation, I suggest a new explanation for disagreement about the human good (I.e what makes a human life good) in ancient philosophy: namely, that differing understandings of argumentation contexts and goals shaped selection of argument schemes, which in turn influenced which theories of the good seemed plausible. The texts I primarily deal with are connections between Plato’s Gorgias and the Philebus, Aristotle’s Topics and the Nicomachean Ethics, Seneca’s EM 82, 83, 87 and 120, Epicurus’ Letter to Menoeceus and Lucretius’ De Rerum Natura, and Sextus’ Outlines of Skepticism.
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Blanchard, Hugues. "Autour des nilvariétés isospectrales." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10133.

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Dans le premier chapitre de cette these, on etudie les varietes de wallach (quotients de su(3) par un sous-groupe de dimension 1). En utilisant les resultats de h. Urakawa, on montre que les varietes de wallach isospectrales sont isometriques et que, pour tout n entier, il existe deux varietes de wallach non isospectrales partageant les memes n premieres valeurs du spectre du laplacien. Dans le second chapitre, nous construisons une famille a trois parametres de varietes resolubles isospectrales. Pour montrer l'isospectralite de ces varietes nous utilisons une formule de trace due a c. Gordon et d. Deturk tres legerement adaptee. Pour prouver la non isometrie, nous montrons que les distances entre certaines sous-varietes caracterisees geometriquement ne sont pas constantes. Dans le troisieme chapitre nous etablissons une formule de trace reliant le spectre du laplacien des nilvarietes de type heisenberg (a noyau de dimension impaire) a un spectre des longueurs particulier. Pour cela nous utilisons une methode basee sur la transformation de fourier et le calcul des residus. Cette formule de trace nous donne une correspondance entre le spectre d'une telle nilvariete et les spectres des tores de la base et de la fibre.
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Giebel, Sonja. "Zuverlässigkeit der Kiefergelenkröntgenprogramme des Orthophos CD." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=96349094X.

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15

Ljus, Daniel, and Marcus Lindberg. "Förlängning av gångtid på CD-raffinör." Thesis, Karlstad University, Division for Engineering Sciences, Physics and Mathematics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-921.

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Detta examensarbete vid Stora Enso Skoghalls bruk utreder gångtiden på en CD-raffinörs lagerpaket som endast går halva den av leverantören angivna drifttiden. CD-raffinören är av modell RGP 82 och används för mekanisk bearbetning av träflis till fibrer, vilket i slutändan av processen blir till kartongpapper. Denna maskin är en kritisk del av tillverkningsprocessen och medför stora kostnader vid haveri, både i form av produktionsbortfall och reparationer.

Under utredningens gång har det framkommit att den korta drifttiden är ett lokalt problem på Skoghall då andra bruk inte har liknande problem. Vi har därför valt att koncentrera oss på de driftförhållanden som råder på Skoghalls bruk.

En förutsättning för att erhålla angiven drifttid är att underhållet och dokumentationen på maskinen fungerar på ett tillfredställande sätt. Det har visat sig att kommunikationen mellan olika underhållsfunktioner inte alltid fungerat optimalt, vidare har det saknats uttalade underhållsrutiner för t.ex. olje- och filterbyten samt regelbundna oljeanalyser. En avgörande parameter för ett lagers livslängd är smörjsystemet, oljan skall uppfylla en rad kriterier för att man ska uppnå maximal lagerlivslängd. På grund av bristerna i underhållet misstänkte vi att den korta drifttiden kunde härledas till oljans kondition. Efter flera oljeanalyser kunde vi konstatera att oljans partikelinnehåll var betydligt högre än rekommenderat. Detta kan med stor sannolikhet bero på att djuprengöringsfiltret troligen varit ur funktion en längre tid samt att tryckfiltrens filtreringsgrad inte följde den nya rekommendationen. Det finns heller ingen som har någon information om att det skett något oljebyte eller rengöring av systemet på väldigt lång tid.

För att på ett enkelt sätt kunna övervaka renheten på oljan har vi undersökt möjligheten till att använda ett on-line system för partikelräkning.

För att undersöka lagrens nuvarande kondition har vi utfört ett antal vibrationsmätningar på maskinen. Mätningarna utfördes med VMI:s mätinstrument EasyViber och bestod av FFT-analyser och Envelopemätningar. Resultatet från dessa mätningar visade att det fanns en begynnande skada i något av lagrens rullkroppar. Detta resultat parallellt med FU-avdelningens egna mätningar ledde till ett byte av lagerpaketet.

För att få en uppfattning om hur systemet rör sig utfördes även en Vibshape analys som grafiskt demonstrerar systemets rörelser.

När ett haveri inträffar går händelseförloppet väldigt snabbt, ofta handlar det endast om någon dag. Detta ställer till stora bekymmer kostnadsmässigt då bytet ofta måste ske oplanerat och kan därmed störa hela processen. Det vore därför önskvärt att kunna få en tidigare förvarning för att lättare kunna planera bytet. Vi har därför utrett ett par olika lösningar på ett fast on-linesystem för kontinuerlig övervakning av lagrens kondition.


This paper at Stora Enso Skoghalls Mill investigates the lifetime of a CD-refiner bearing unit that only operates half of the mention lifetime. The CD-refiner is a RGP 82 model and is used for mechanical manufacturing of wood chips to fiber, which in the end of the process becomes carton paper. This machine is a critical part of the process and results in great cost in invent of a failure, both in lost of production volumes and repairs.

During the investigation it has been revealed that the short lifetime is a local problem at Skoghall because no other Mills has similar problems. We have therefore chosen to concentrate on the production parameters that are used at Skoghall Mill.

A condition to obtain the mentioned lifetime is that the maintenance and documentation is working properly. It has been revealed that the communication between different maintenance departments does not always work accurate, further more is pronounced maintenance routines missing for example regarding oil- and filter exchange and regular oil analysis. A crucial parameter for a bearing lifetime is the oil grease system, the oil have to fulfil a number of criteria’s fore the bearing to reach maximum lifetime. Because of the flaws in the maintenance routines we suspected that the short lifetime is caused by the oil’s condition. After several oil analyses we came to the conclusion that the particle contamination was higher than recommended. A plausible cause to this could be that the deep filtering unit probably had malfunctioned for a long period of time, further more did not the pressure filters follow the new recommendation. Neither is there anybody with information about if there has been any oil chance or cleaning of the system for a very long time.

One easy way to monitor the particle contamination is to use an on-line system for particle counting, therefore we have examined one of the existing systems on the market.

To examine the present condition of the bearings did we conduct a series of vibration measurements on the refiner. The measurements was conducted with VMI:s instrument EasyViber and contained FFT-analyses and Envelope measurements. The result from these measurements indicated an early injury in one of the bearings rolling elements. This result together with measurements conducted by the FU-department resulted in a change of bearing unit.

To get an idea how the system moves we conducted a Vibshape analyses that graphically demonstrates the systems movements.

When a failure occurs the chain of events is very rapidly, often it is a matter of days. This causes great problems and costs because the machine has to be changed during an unplanned stop and can therefore affect the whole process. It would therefore be desirable to get an earlier warning and have the possibility to make a planed stop.

We have investigated a few possible solutions for continues on-line monitoring system of the bearings condition.

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16

Ericsson, Andreas. "CD eller mp3? : En välfärdsekonomisk förpackningsstudie." Thesis, Linköping University, Department of Management and Economics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1341.

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Bakgrund: När Internet på 1990-talet gjorde sitt intåg i gemene mans vardag, öppnades en ny distributionskanal för musik. Istället för att lagra inspelningar på fysiska CD-skivor kunde nu datafiler sändas över Internet i filformat så som mp3. Produkten ”musik” bytte skepnad från att vara en materiell produkt till att bli en immateriell datafil.

Syfte: Uppsatsen syftar till att studera vad ett byte av förpackning från CD- skiva till mp3-fil får för välfärdsekonomiska effekter på marknaden för musik. Studien jämför en renodlad CD-marknad med en renodlad mp3-marknad.

Resultat: Ett förpackningsbyte medför sänkta produktionskostnader. En datafil reproduceras inte i vanlig bemärkelse, alla enheter är kloner av ett unikt original vilket gör marginalkostnaden försumbar. Tröskeln för att etablera sig på musikmarknaden sänks i takt med att kostnaderna minskar. Artister som tidigare inte erbjudits skivkontrakt ges nu möjlighet att på egen hand bjuda ut sina alster till försäljning, vilket medför ett ökat utbud. Resultatet blir högre konkurrens vilket rimligtvis visar sig som en lägre prisnivå. Sänkta kostnader är positivt relaterat till ökat producentöverskott, men en sänkt prisnivå motverkar ökningen. Högre konkurrens med lägre priser som följd ökar konsumentöverskottet. Sammanfattningsvis pekar studiens resultat på att ett förpackningsbyte från CD till mp3 är positivt ur välfärdsekonomisk synvinkel.

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17

Raižys, Artūras. "Duomenų apsaugos metodai CD/DVD laikmenoms." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110831_114615-63291.

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Šiandieniniame pasaulyje duomenys yra viena vertingiausių prekių. Svarbių ar slaptų duomenų praradimai gali padaryti didelę materialinę žalą. Duomenų apsaugos priemonėms yra išleidžiamos milžiniškos pinigų sumos. Darbo metu analizuojami esami duomenų apsaugos įrankiai ir metodai, gilinantis į duomenų apsaugą pernešamose laikmenose, CD ir DVD diskuose. Analizės metu surinkti duomenys apie duomenų apsaugą nuo kopijavimo ir peržiūrėjimo bei panaudojimo naudojami eksperimente siekiant nustatyti tinkamiausius metodus būsimai programinei įrangai, skirtai duomenims apsaugoti. Vykdant eksperimentą siekiama patikrinti šifravimo algoritmų laiko sąnaudas. Tam tikslui atliekamos šifravimo ir dešifravimo operacijos su 10 MB ir 100 MB failais. Sukurta sistema leidžia apsaugoti duomenis CD ir DVD diskuose nuo neteisėto peržiūrėjimo ar panaudojimo. Sistemos pagalba sukurti apsaugoti duomenų diskai, be jokios papildomos programinės įrangos, yra panaudojami kituose kompiuteriuose, kuriuose įdiegta Windows XP/Vista/Win7 operacinė sistema.
In the current world data is one the most valued items. Loss of relevant and secret data may cause huge material harm. Grant sums of money are spent for data security methods. In the paper the available tools and methods of data security are analyzed, security methods for CD and DVD media are discussed. The information collected on the data copy-protect and cryptography as well as use security is used in an experiment aiming to identify the most fitting methods for software of data security. The implementation of the experiment is aimed at checking the time input for cryptography algorithms. For this purpose the crypt and decrypt operations with 10 MB and100 MB files are performed. The developed system allows to keep data safe from illegal review and use in CD and DVD. Safety data records developed with the help of the system may be used without any extra software in other computers in which Windows XP/Vista/Win7 operation system is installed.
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18

Wells, Daniel J. "GENERAL FLIPS AND THE CD-INDEX." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/33.

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We generalize bistellar operations (often called flips) on simplicial manifolds to a notion of general flips on PL-spheres. We provide methods for computing the cd-index of these general flips, which is the change in the cd-index of any sphere to which the flip is applied. We provide formulas and relations among flips in certain classes, paying special attention to the classic case of bistellar flips. We also consider questions of "flip-connecticity", that is, we show that any two polytopes in certain classes can be connected via a sequence of flips in an appropriate class.
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19

Butrym, Kenneth Patrick, and Hagop Avedis Avedissian. "CD-ROM; library of the future." Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/22938.

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This thesis examines the feasibility of using the compact disc-read only memory (CD-ROM) as the storage medium for the Department of Defense (DOD) construction contracting. Specifically, the DOD sponsored program, headed by the Naval Facilities Engineering Command (NAVFAC), called Construction Criteria Base (CCB) is evaluated. The program is composed of a compact disc containing government construction criteria including Army, Navy and NASA standards. The test platform used is the specification branch of NAVFAC and its Engineering Field Divisions. The CD-ROM used in conjunction with a microcomputer is compared to the standards libraries of the present which are comprised of paper, microfilm and microfiche storage media. The conclusion reached is that the use of the CD-ROM disc in the DOD construction arena is advisable. Keywords: Read only memories, Data storage systems, Laser disks, Optical storage. Theses. (edc)
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20

Brinkley, Douglas Edward, and Paul Gordon Scyoc. "Distribution of databases on CD-ROM." Thesis, Monterey, California: Naval Postgraduate School, 1990. http://hdl.handle.net/10945/34878.

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Approved for public release; distribution unlimited.
The vast majority of information distributed throughout the Navy today is done so using various paper products in the form of manuals, printouts, books and other publications. Paper publications are inherently expensive to produce, store and distribute on a large scale. They are also difficult to use when extracting detailed information for ad hoc reports. Compact Disc, Read Only Memory (CD-ROM) technology provides an alternative means to publish and distribute information to large number of users. This thesis examines the capabilities, advantages and disadvantages of CD-ROM technology to determine whether its use would be a preferred strategy for fulfilling information distribution requirements within the Navy. The research included the development of a CD-ROM pre-master file which was used to test the response of a CD-ROM application compared to manually extracting the same information from a printed manual.
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21

Beck, Anthony Leonard. "Synthetic routes to (cd)-fused indoles." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/47769.

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22

Collins, Richard Nicholas. "Chelation in Cd and Zn phytoextraction." Title page, abstract and introduction only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phc7127.pdf.

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Bibliography: leaves 137-174. This thesis describes research which aims to develop analytical methodology to assist in the determination of metal-chelate complexes in soil solutions and plant fluids, to resolve the process involved in chelate-assisted cadmium and zinc phytoextraction, and also to determine the possible effects of chelation processes on the quantity of phytoavailable Cd and Zn in polluted soils.
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23

Jory, Fabienne. "Familles de symboles modulaires et fonctions L p-adiques." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10254.

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Depuis les travaux de manin vers 1970, on connait le lien entre les coefficients de fourier d'une forme modulaire parabolique f de poids k et ses periodes p(x,r,f) = #i##x f(z)z#rdz, pour 0 r k 2 entier et x rationnel. On sait aussi que pour une forme nouvelle f, on peut construire une fonction l p-adique liee aux valeurs speciales l#f(r + 1,) pour un caractere de dirichlet dont le conducteur est le denominateur de x. L'objectif de cette these est de montrer l'existence de series de fourier universelles f#x#,#r#,#j independantes de f et qui representent la forme modulaire f en termes du produit scalaire de petersson de niveau fixe (en utilisant des convolutions de rankin et des series d'eisenstein). De plus l'ecriture explicite de ces fonctions f#x#,#r#,#j permet d'etablir que leurs coefficients de fourier sont des nombres algebriques aux denominateurs bornes (lorsque le denominateur de x est une puissance d'un nombre premier), c'est-a-dire a un nombre entier pres fixe, des entiers algebriques. L'utilisation de ce resultat nous permet enfin de construire des mesures et des fonctions l p-adiques dans le troisieme chapitre.
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24

Johnson, Gwendolyn L. "Art in motion : a poster book on CD-ROM /." Online version of thesis, 1994. http://hdl.handle.net/1850/12195.

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25

Zimmermann, Edgar. "Aufbau und Betrieb eines zeitaufgelöst messenden CD-Spektrometers." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=96591190X.

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26

Ragan, Timothy James. "Regulation of S6K1 Protein Kinae Activation by its C-Terminal Autoinhibitory Domain." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/125.

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Signal transduction kinases lie at the heart of the cell's ability to respond to environmental cues. These kinases are typically controlled by post-translational modification, most commonly by phosphorylation. S6K1alphaII is a member of the AGC subfamily of serine-threonine protein kinases, whereby catalytic activation requires phosphorylation of critical residues in the conserved T-loop (T229) and hydrophobic motif (T389) regions of its catalytic kinase domain. In addition to its kinase domain, S6K1 contains a C-terminal autoinhibitory domain (AID, residues 399-502), which inhibits T-loop and hydrophobic motif phosphorylation. Autoinhibition is relieved upon multi-site Ser-Thr phosphorylation of the AID by MAP kinase(s). We developed an optimized PCR-based gene synthesis method, which I utilized to build expression constructs for the AID alone as well as the kinase domain and full length S6K1alphaII. A fully activated form of S6K1alphaII was purified from Sf9 cells by co-expression with PDK1, and was used for in vitro analysis of the signaling pathway. AID was successfully purified in a soluble form from E. coli despite the fact that PONDR analysis predicted a highly disordered structure. Aberrant mobilities in both SDS-PAGE and size-exclusion chromatography, as well as low chemical shift dispersion in 1H-15N HSQC spectra and far UV CD data showing a lack of secondary structure, confirmed that purified recombinant AID is largely unfolded. Despite this, addition of purified AID effectively inhibited PDK1-catalyzed T-loop phosphorylation of a catalytic kinase domain construct of S6K1 and inhibition was decreased when the tetraphospho-mimic mutant AID(D2ED) was used. These studies, along with the reagents produced by them, will allow for further exploration of the emerging field of disordered regulatory domains.
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27

Osorio, Fernández Lyda María. "Regulation of T-cell proliferation and B-CLL apoptosis by CD6 and FAS/FASL /." Stockholm, 1998. http://diss.kib.ki.se/search/diss.se.cfm?19980605osor.

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28

Fernvik, Eva C. "Cell biological mechanisms and activity markers of eosinophils in relation to allergic inflammation /." Stockholm, 1999. http://diss.kib.ki.se/1999/91-628-3399-5/.

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29

Tschuschke, Steffen. "Das Cd-induzierbare crp-Gen aus dem terrestrischen Oligochaeten Enchytraeus genomische Organisation und Bedeutung für die Cd-Detoxifizierung /." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962777951.

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30

Buch, Thomas. "Angiogenese beim Ovarialkarzinom die Expression von CD 31 und CD 143 und deren klinisch-pathologische und prognostische Bedeutung /." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969258208.

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31

Silva, Maria Amália da. "Ensaios de toxicidade aguda e crônica com Cd, Cu e (Cd + Cu) em Tilápias do Nilo (Oreochromis niloticus)." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-22042013-161236/.

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Este estudo teve por objetivos conhecer aspectos da toxicidade de Cu e Cd, separadamente e em combinacao (Cu+Cd) em tilapias (Oreochromis niloticus), verificando possiveis efeitos sinergicos ou antagonicos. Determinou-se nessas situacoes, a bioacumulacao dos metais no tecido muscular, branquias e figado dos especimes, enfase ao potencial bioindicador da especie. Para tanto, ensaios de toxicidade aguda na forma estatica foram conduzidos por um periodo de 96 horas. Previamente a esses, foram realizados testes preliminares com as referidas especies quimicas em concentracoes logaritmicas, com o intuito de se determinar os intervalos onde 100% de mortalidade e 100% de sobrevivencia eram observados para a especie. Atraves desta etapa estabeleceram-se para os ensaios de toxicidade aguda, as concentracoes de 0,0, 0,5, 1,0, 2,5, 5,0 e 10,0 mg L-1 para Cu e Cu+Cd e de 0,0, 1,0, 5,0, 10,0, 25,0 e 50,0 mg L-1 para Cd. As variaveis temperatura, pH, amonia, oxigenio dissolvido e metais dissolvidos foram aferidas no inicio e a cada 24 horas. A dureza total foi monitorada apenas para os tratamentos controle, no inicio e termino dos experimentos para fins de verificar a qualidade da agua. Para os ensaios cronicos, conduzidos na forma semi-estatica e com duracao de 21 dias, duas concentracoes de cada metal foram utilizadas, onde o criterio de estabelecimento dos valores foi a CL50/10 e a media dos logaritmos das CL50/10 e CL50/100. Amostragens para verificacao da bioacumulacao foram realizadas em 24 e 96 horas, 07, 14 e 21 dias, sendo que durante essas amostragens, as variaveis pH, temperatura, oxigenio dissolvido, amonia e teores de metais nas solucoes foram determinadas. Como nos ensaios anteriores, a dureza total foi determinada no primeiro e ultimo dia para controle de qualidade da agua. As CL50-96h para o cobre, cadmio e cobre+cadmio foram respectivamente 3,53 mg L-1, 20,13 mg L-1 e 1,36 mg L-1 Pode-se observar durante os ensaios preliminar e agudo, uma acentuada precipitacao do Cu principalmente nas maiores concentracoes, isso em decorrencia do produto de solubilidade do hidroxido de cobre formado nas cubas experimentais. 8 Nessas concentracoes, observou-se que o Cd apresentou reducao quando em combinacao, atribuido a co-precipitacao ocorrida com o Cu. No que diz respeito a bioacumulacao dos metais nos orgaos e tecidos, pode-se observar, com algumas excecoes, que o figado, devido as suas funcoes metabolicas, apresentou uma maior acumulacao, seguido das branquias e tecido muscular. A tilapia apresentou maior resistencia ao CdCl2.H2O do que ao CuCl2 tendo a combinacao das duas especies quimicas potencializado a toxicidade de forma sinergica. Esse estudo possibilitou concluir que a afericao das concentracoes efetivas dos elementos de interesse durante ensaios de toxicidade e de relevante importancia, pois a concentracao esperada para as especies quimicas dissolvidas podem diferir daquelas esperadas, em funcao do elemento analisado e do tempo de duracao do experimento
The aim of this work was to assess for the toxicity of Cu and Cd, separately and in combination (Cu+Cd) in tilapias (Oreochromis niloticus), checking for the possible synergical or antagonic effects. In these situations, the bioaccumulation of metals in muscle tissue, gill and liver were determinated, emphasizing the potential bioindicator of the specie. Acute toxicity test in static mode were carried out for a period of 96 hours. Prior to these, preliminary tests were performed with such chemical species in logarithmic concentration, in order to establish the range of concentrations in which 100% mortality and 100% survival were observed for the specie. Through this step, concentrations of 0.0, 0.5, 1.0, 2.5, 5.0 and 10.0 mg L-1 for Cu and Cu+Cd and of 0.0, 1.0, 5.0, 10.0, 25.0 and 50.0 mgL-1 for Cd were defined in acute toxicity assays. Temperature, pH, ammonia, dissolved oxygen and dissolved metals were measured at the beginning and every 24 hours. Total hardness was monitored only for the control treatments, in the beginning and at the end of the experiments to check the water quality. Semi-static chronic assays, were conducted during 21 days, by using two concentrations of each metal. Concentrations were calculated as CL50/10 and average of logarithms of CL50/10 and CL50/100. Samplings for assessing the metals bioaccumulation were performed at 24 and 96 hours, 07, 14 and 21 days. In a mean time, pH, temperature, dissolved oxygen, ammonia and dissolved metals were also determinated. Like in previous assays, total hardness was determined in the first and in the last day. The LC50 for copper, cadmium and copper+cadmium were respectively 3.53 mg L-1, 20.13 mg L-1 and 1.36 mg L-1. A precipitation of copper hydroxide, moreover for the higher concentrations were observed in both, preliminary and acute assays. On these situations, Cd concentration was decreased when combined, assigned to the co-precipitation occurred with Cu. Liver, due to it metabolic functions, showed higher metals accumulation, followed by gills and musclular tissue. It can be concluded that tilapia showed greater resistance to CdCl2.H2O, than to CuCl2 and with the combination of the two chemical species, potentiated the toxicity of synergic form. This study also enabled to conclud that measurement of effective concentrations of the elements of interest during test of toxicity is relevant, because the concentrations obtained may differ to those expected, according to the element and the duration of the experiment
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32

SALLET, VINCENT. "Croissance des alliages cd#xhg#1-#xte et cd#ymn#1-#yte par omcvd et etude physique d'heterostructures." Paris 7, 1994. http://www.theses.fr/1994PA077328.

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L'epitaxie en phase vapeur par pyrolyse d'organometallique (omcvd) des alliages ii-vi cdhgte et cdmnte sur substrats gaas et cdinte est realisee. La croissance de cdmnte est effectuee a l'aide du procede classique alliage direct a 365c. Celle de cdhgte est realisee a plus basse temperature (300c) et en utilisant une nouvelle methode basee sur la separation des flux de precurseurs, appeles vip (vapor interdiffusion process). Deux domaines d'etude relatifs a la technique d'epitaxie par omcvd sont abordes. Le premier concerne l'hydrodynamique et la modelisation des ecoulements gazeux dans le reacteur ; des simulations de profils de vitesse, de concentrations et de vitesse de croissance sont realisees dans une geometrie proche de celle utilisee experimentalement. La seconde etude est relative a la reflectance anisotrope spectroscopique, outil de diagnostic in situ de la croissance omcvd. Enfin des heterostructures ii-vi sont preparees et etudiees. Il s'agit d'abord des structures cdhgte a modulation de dopage, dont la photoconductivite a ete mesuree puis calculee theoriquement en fonction de la temperature. Ont ete deposees ensuite des structures a confinement quantique cdte/cdmnte, qui ont ete caracterisees en photoluminescence
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33

Andreasson, Robert, and Magnus Nilsson. "Användbarhet på e-handelsplatser i cd-branschen." Thesis, University West, Department of Informatics and Mathematics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-506.

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34

Bär, Marcus. "Neuartige Cd-freie Fensterstruktur für Chalkopyrit-Dünnschichtsolarzellen." [S.l.] : [s.n.], 2004. http://edocs.tu-berlin.de/diss/2003/baer_marcus.pdf.

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35

Müller, Kirstin. "Schlüsselkompetenzen und beruflicher Verbleib : mit CD-ROM /." Bielefeld : Bertelsmann, 2008. http://d-nb.info/988675021/04.

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36

Krug, Martin. "Aspekte der CD-Piraterie aus kriminologischer Sicht /." Frankfurt am Main [u.a.] : Lang, 2000. http://www.gbv.de/dms/spk/sbb/recht/toc/319618498.pdf.

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37

Tyliutė, Laima. "Mokomasis CD pradinukui: tipinių veiklos scenarijų realizavimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090827_135243-20349.

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Mokomasis CD tipiniai veiklos scenarijai sukurti remiantis pakartotino panaudojimo koncepcija. Teorinėje dalyje atlikta mokomųjų CD, naudojamų ugdymo procese, analizė, aiškintasi pakartotino panaudojimo koncepcija, susipažinta su šablonais – komponentais ir jų taikymu MO (mokymo objektuose). Praktinėje dalyje aprašomas sukurtas mokomasis CD ir jo komponentai, veikimo principas, pateikiami testavimo rezultatai. Šis darbas parengtas naudojantis Adobe Flash CS 3 technologijas, naudojant Action Script 2.
Educational CD with action script realization was created on the basis of re-creating the concept of recovery. Theoretical part of this work includes the analysis of the CD use in teaching and educational processes. It also includes the analysis of the concept of re-use and getting familiar with the pattern of the application of TO (teaching objects). The practical part of the work describes the developed educational CD and its components, operating principle and the test results. This work is based on Adobe Flash CS 3 technology, using Action Script 2.
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38

Lehner, N. [Verfasser]. "Neutronenstreuuntersuchungen an (CD₃ND₃)₂MnCl₄ / N. Lehner." Karlsruhe : KIT-Bibliothek, 2012. http://d-nb.info/1190100509/34.

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39

Urwin, Peter Edward. "Cd-regulated gene expression in Datura innoxia." Thesis, Durham University, 1992. http://etheses.dur.ac.uk/5711/.

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The effects of Cd on the expression of specific proteins and transcripts have been examined in Cd-resistant (Cd300) and Cd-sensitive cultures of Datura innoxia. 2D PAGE analysis of the soluble fraction of D. innoxia protein proved problematic. Proteins precipitated on the surface of lEF gels. This was overcome by loading the samples in the gel mixture prior to polymerisation. Polymerisation of gels containing protein extracted from Cd-exposed cells only occurred when PCs, Cd and other components were resolved from the proteins eluting in the void volume following fractionation by gel filtration chromatography (Sephadex G50). Two peptides, designated Cd-1 and Cd-2, were detected in the Cd300 cells only after exposure to Cd. Cd-1 and Cd-2 were also both detected following exposure of the Cd300 cells to 125 piM Cu or Zn, or HS (42 ˚C 4 h). Neither Cd-1 nor Cd-2 were observed in protein extracts from WDI cells exposed to 125 μM Cd for 8 h. Both Cd-1 and Cd-2 proved refractory to Edman degradation while the N-terminal 30 amino acids of a third, constitutively expressed protein, designated Protein-3, were determined using equivalent procedures. This protein showed sequence similarity to PR proteins. Although cleavage of Cd-1 and Cd-2 generated polypeptides which were not terminally blocked, no sequence information was obtained from these polypeptides, even following purification using standard techniques. Oligonucleotide primers designed from the amino acid sequence of Protein-3 were successfully used to amplify, from cDNA, a fragment which was cloned, sequenced and shown to encode the characterised protein. A longer fragment was also amplified from cDNA by RACE PGR. However, this product was not cloned. In order to identify cDNA sequences encoding Cd-1 and Cd-2 an expression cDNA library was prepared and antibodies raised against the two peptides. However, no antigenicity could be detected when antisera raised against Cd-1 or Cd-2, or the purified IgG fractions, were used to probe western blots. The XZAP cDNA (Cd-exposed) library was "differentially screened" in order to isolate clones corresponding to Cd-induced genes. This led to the isolation of two Cd- induced clones designated Cd-6 (949 bp) and Cd-8 (659 bp). Both clones hybridised to transcripts of approximately 900 bp. Transcripts were also detected in RNA samples extracted from D. innoxia exposed to HS (42 ˚C 4 h), however no transcripts were detected in WDI cells exposed to Cd. Southern blots revealed hybridisation to multiple bands, possibly indicating the presence of a gene family. A motif, C-C-X-C-C, found in the a-domain of metallothioneins, was identified in Cd-6. This may represent a putative metal binding site in Cd-6.
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40

Peña, Mendieta Diana. "Remoción de Cd por Musa cavendishii, L." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2016. http://hdl.handle.net/20.500.11799/58718.

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En esta investigación se desarrolló la propuesta de remover el Cadmio por el proceso de adsorción empleando material orgánico de desecho que en este caso particular fue la cáscara de plátano cuyo nombre científico es la Musa cavendishii , L., este biomaterial fue recolectado de los residuos orgánicos generados en mercados. Por lo cual se aprovechó el gran volumen que se genera de este biomaterial como desecho. Este biomaterial fue molido y tamizado hasta alcanzar un tamaño de partícula adecua do y establecido en investigaciones científicas que emplearon otros materiales también de naturaleza orgánica. La cáscara fue manejada de dos maneras, la primera de forma natural y la segunda mediante un tratamiento químico con ácido sulfúrico con la final idad de oxidar su superficie. A la par de esta manipulación del biomaterial, se prepararon soluciones sintéticas de Cadmio a diferentes concentraciones, con el propósito de poner en contacto ambos componentes. Esto se realizó con la finalidad de estudiar cual es el comportamiento del Cadmio con respecto al biomaterial, esto implica determinar si la biomasa del plátano retiene el contaminante en su superficie mediante el proceso de adsorción.
En este documento se present a la investigación experimental, la problemática que aborda es la contaminación del agua Cadmio. Este elemento es altamente contaminante, ya que su presencia en el agua implica efectos dañinos a la salud del homb re, especies vegetales y animales. Los tratamientos propuestos en la comunidad científica para removerlo de la fase acuosa han sido diversos, que van desde los más comunes que son el químico hasta lo más avanzados como son el electroquímico y separación p or membranas.
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41

Pirrie, C. A. "Studies of hollow cathode He-Cd lasers." Thesis, University of St Andrews, 1985. http://hdl.handle.net/10023/14039.

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Novel segmented-electrode discharge tubes which operate as sealed-off He-Cd hollow cathode lasers and which do not require a flowing gas system to distribute cadmium vapour are reported. The electrode geometry is arranged to produce a net axial electric field so that cadmium distribution is enhanced by cataphoresis,' a process which is not normally associated with He-Cd hollow cathode lasers. The conditions under which the segmented-electrode tubes exhibit the properties of hollow cathode discharges are determined from their current and voltage characteristics. One system studied consists of alternate anode and cathode segments with glass insulating sections arranged axially, and behaves as a series of hollow cathode discharges under appropriate conditions. Each anode/hollow cathode pair is separated from its neighbouring segments by insulating glass sections of length D, which provide a recombination site and prevent adjacent discharges from overlapping each other. A calculation shows that adjacent discharges will remain isolated provided that D > 2.85cm, in helium at 10 Torr and 700 K. Another segmented-electrode system studied consists of a series of metal segments equal in length. This system does not have discrete anode segments and exhibits the positive Volt-Ampere (VI) characteristics normally expected of, hollow cathode discharges only at low values of discharge current. A transition point in the characteristics exists, and, for discharge currents above this, the VI slope is negative. This behaviour is explained in terms of the plasma length, which is defined as the axial extent of the negative glow within a cylindrical segment, and which increases with increasing discharge current. At low values of discharge current (several mA), the plasma length is less than the length of the metal segments, and the discharge tube operates as a series of hollow cathodes. Under these conditions, each segment has a negative glow discharge partially penetrating the bore from one end, while the other end performs as an anode for the next segment, and so on. The last segment is at power supply earth potential and has no anodic function. The transition points in the VI characteristics occur when the discharge current is increased to a value such that the plasma length equals the length of the metal segments. For discharge currents above this value, only the last segment at power supply earth potential continues to operate as a hollow cathode. The results of these studies provide guidelines for the design of segmented-electrode He-Cd hollow cathode laser discharge tubes in terms of the axial order and optimum spacing of anode and cathode segments. It is shown that large axial temperature variations can exist in thin-walled (0.9mm) hollow cathode structures, implying that the current density distribution at the cathode surface is not uniform. A differential equation is derived to describe heat flow within a cylindrical conductor heated at one end and cooled by natural convection and radiation along its length. Approximate solutions are obtained for both thick-walled and thin-walled conductors. The results of the thick-walled approximation yield thermal design criteria for hollow cathodes, where moderate cathode temperatures (350°C) and minimal axial temperature variations are required. The thin-walled approximation yields results which provide design criteria for the protection from high temperature failure of components such as cylindrical glass/metal seals and 'O' rings.
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42

Солодін, С. В., О. В. Копач, Анатолій Сергійович Опанасюк, Анатолий Сергеевич Опанасюк, Anatolii Serhiiovych Opanasiuk, and П. М. Фочук. "Міграція включень в кристалах Cd(Mn)Te." Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46190.

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Кристали Cd(Mn)Te позиціонуються як можлива альтернатива кристалам Cd(Zn)Te, що знайшли широке застосування як детектори іонізуючого випромінювання. В даних кристалах з Mn можливо досягти більш однорідного розподілу мангану по кристалу, оскільки коефіцієнт сегрегації Mn в CdTe близький до 1. Це дозволяє підвищити вихід матеріалу з потрібними і відтворюваними електричними характеристиками. Включення другої фази є небажаними структурними недосконалостями в детекторах. Одним з можливих способів їх усунення - це їх міграція у полі температурного градієнту. Тому було вирішено дослідити можливість застосування цього явища і для очистки кристалів Cd(Mn)Te.
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43

Petersson, Karl. "Test automation in a CI/CD workflow." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96253.

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The procedure of testing the implemented software is important and should be an essential and integrated part of the development process. In order for the testing to be meaningful it is important that the testing procedure ensures that the developed software meet certain requirements. The testing procure is often controlled by some sort of test specification. For many companies it is desirable to automate this procure. The focus of this thesis has been to automate a small subpart of the manual tests today performed related to SAAB:s air traffic management system. The automation has been achieved by studying the existing test specification which involves a lot of manual operations and to write software that mimics a few of these test cases. The thesis has resulted in a test framework which automates a small subset of the manual tests performed today. The framework has been designed to be scalable and to easily allow more test cases to be added by the personnel when time permits. The test framework has also been integrated with SAAB:s existing CI/CD workflow.
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44

Víšek, Jakub. "Hromadná orchestrácia v multirepo CI/CD prostrediach." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445562.

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Multirepo model přístupu ke správě a verzování zdrojového kódu, jež zahrnuje použití mnoha oddělených repozitářů verzovacích systémů, je poslední dobou často zmiňován v odborné literatuře. Jednou z jeho nevýhod je množství zdlouhavých, nezajímavých a repetitivních úkonů, které je nutno provádět při hromadných operacích tvořících transakce napříč těmito repozitáři. Multirepo repozitáře navíc umožňují využití široké škály technologií, což jen umocňuje riziko lidské chyby, ke které při ručně prováděných hromadných operacích může dojít. V rámci této práce je navrženo, implementováno a otestováno řešení pro automatizaci operací prováděných napříč množstvím repozitářů uspořádaných v multirepo modelu, což s nimi uživatelům zlepšuje zkušenost.
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45

Kohstall, Christoph. "Kollektive Dipolanregungen in den stabilen Cd-Isotopen." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11759357.

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46

Fauler, Alex. "Brigmanzüchtung von (Cd,Zn)Te für Strahlungsdetektoranwendungen." [S.l. : s.n.], 2006.

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47

Zhang, Haiyong. "Robust Image Storage Mathods for CD-R." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/195278.

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We are now in a rapid growth digital age. Different kinds of digitized applications are affecting people's daily life in different ways. All of these digitized applications generate tremendous amounts of information every day. We need to archive the important information because of their enduring value. However, the storage of digital information over time is a complex and difficult task. Selecting reliable digital archiving media, choosing suitable digital archiving methods, and using appropriate file formats for digital archiving are essential elements for achieving this task.Many companies and organizations have invested in finding reliable and affordable storage media for digital archiving since the end of the last century. Compact Disc Recordable (CD-R) quickly became one of the most popular choices for preserving digital information because CD-R can provide reliable back up at a reasonable price. Nevertheless, recent studies revealed that CD-R as a recording media for long term information archiving is not as reliable as we wish [4]. Its recording media may suffer from lost data because of possible damage from heat, humidity and light.In order to improve the performance of CD-R for long term digital archiving, there has been some research on hardware and software solutions to address this potential problem. Still most existing improvements have limitations either in the need of changing current CD-R standards or significant changes in current optical media drives.The objective of this research is to design and implement a novel system that advances the state of the art in digital archiving using CD-R, especially in the area of digital image storage. The design proposes robust image storage methods for CD-Rs based on the JPEG2000 standard. These storage methods combine the virtual block interleaver, Reed Solomon codes, and the error resilience tools of JPEG2000 effectively to protect the images on CD-Rs against errors caused by possible physical damage.To demonstrate the feasibility of the proposed digital data storage methods, numerous experiments are conducted. The results show that the robust digital archiving methods for CD-R are useful and efficient.
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48

Macdonald, Sierra. "Development of an Aural Rehabilitation CD-ROM." Scholar Commons, 2002. https://scholarcommons.usf.edu/etd/1525.

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A need has been established for aural rehabilitation (AR) sessions throughout the years. The literature reviewed here demonstrates that new hearing aid users do benefit from a structured follow-up AR program. However, this need is often not met for a variety of patient and audiologist related factors. Therefore, an AR program that could be viewed at home has been suggested. I have developed a prototype for a CD-ROM based aural rehabilitation (AR) program. Included in the program are communication and speechreading strategies, which are the most prevalent materials in AR. The instructional and interaction portions of the prototype were created to be understood by the average person. The prototype includes the use of video, graphics, and audio to support the written information and to incorporate a sense of excitement into the CD-ROM based program.
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49

Massey, Geraldine. "Seven conceptions of CD-ROM information resources." Thesis, Queensland University of Technology, 1995. https://eprints.qut.edu.au/36510/1/36510_Massey_1995.pdf.

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At present and in the future, vast amounts of information are being presented and will continue to be presented in a variety of formats that are technologically dependent. In a society where information is a key commodity, students need to develop skills which will help them deal with the information, as well as the format in which it is presented. Currently, one way used to present information is in the format of CD-ROM information resources. Students' experiences of CD-ROM information resources to gain access to information they require in their daily lives, either in the context of their school work or their personal information needs, may influence the development of crucial information skills. Previous research into CD-ROM information resources and their use by students has adopted a first-order perspective. That is, it has looked at technical aspects of the design of CD-ROM information resources; the effectiveness of CD-ROM information resources; and the observed use of CD-ROM information resources. This study adopts a second-order perspective to investigate students' experiences of CD-ROM information resources from the students' point of view. Such a perspective emphasizes the non-dualistic nature of the relationship that exists between students and CD-ROM information resources. Fifty-six male secondary students from two independent schools in Brisbane took part in ten synergetic focus group discussions and forty-nine of those students completed written responses to provide data for this study. The data were then analysed phenomenographically to discover the qualitatively different ways in which CD-ROM information resources were experienced by those students Seven conceptions of CD-ROM information resources were discovered. Participants saw CD-ROM information resources as Emerging Technological Resources, as Terra lncognita, as the Future of Information, as Tools, as Information Silos, as Learning Media and as Limited Information Resources. The structural relationship that exists between the conceptions was found to be dependent on the degree to which CD-ROM information resources were seen either to facilitate or not to facilitate physical or intellectual access to information. A comparison of the participants' conceptions with the "authorized" conceptions revealed that six of the seven conceptions were held by both the participants and the experts in the field. This comparative rate helps to validate this study. The reliability of the findings was confirmed by the use of a co-judge who scrutinized a sample of the data to allocate selected quotations to the categories chosen to describe the conceptions. A high interjudge reliability rate was achieved. The study shows how teachers and teacher-librarians can use a knowledge of the conceptions discovered to introduce students to different ways of experiencing CD-ROM information resources. These different experiences may help to promote the development by students of the information skills so necessary for students to participate actively in the information age, now and in the future.
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50

Castillon, Philippe. "Sur les sous-variétés à courbure moyenne constante dans l'espace hyperbolique." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10006.

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Dans les chapitres 2 et 3 de cette these, on s'interesse aux sous-varietes de l'espace hyperbolique dont la courbure moyenne est constante et strictement inferieure a un. Le premier resultat qu'on obtient concerne l'operateur de stabilite. Dans notre cas, cet operateur est essentiellement auto-adjoint, et on connait un minorant positif de son spectre essentiel. On montre que le nombre de valeurs propres inferieures a ce minorant est fini, et on en obtient un majorant qui fait intervenir la courbure totale. Ce faisant, on obtient un majorant de l'indice de morse de sous-variete. Un des points importants de la preuve est de controler le noyau de la chaleur de la sous-variete. On obtient ce controle en montrant qu'on a sur la sous-variete des inegalites isoperimetriques. Le second resultat porte sur la compactification. On etend aux sous-varietes a courbure moyenne constantes un resultat de g. De oliveira pour les sous-varietes minimales: on montre que la sous-variete est diffeomorphe a l'interieur d'une variete compact a bord, et que l'immersion s'etend continument au bord en une application a valeurs dans le compactifie de l'espace hyperbolique. Dans le chapitre 4, on etudie les surfaces de revolution a courbure moyenne constante dans l'espace hyperbolique. On obtient une construction cinematique de leurs meridiennes analogue a celle donne par c. Delaunay dans l'espace euclidien. Les courbes a faire rouler ont des proprietes focales similaires a celles des coniques euclidiennes. On trouve les analogues hyperboliques des ellipses, des hyperboles ainsi qu'une surprenante famille de paraboles
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