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Autor: Grafiati
Data publikacji: 7 września 2023
Data aktualizacji: 19 lipca 2025

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1

Seyhan, Ayse. "Photoluminescence Properties Of Si Nanocrystals Embedded In Sio2 Matrix." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611750/index.pdf.

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This thesis examines the luminescence properties of nanoscale silicon (Si) by using spectroscopic techniques. Since the development of new optical devices requires understanding light emission mechanism optical spectroscopy has become more important tool in the analysis of these structures. In this thesis, Si nanocrystals embedded in SiO2 matrix will be studied. Photoluminescence (PL) and Time-resolved photoluminescence spectroscopy (TRPL) have been used to detect the light emission in UV-Vis-NIR range. Experiments have been performed in the temperature range 10-300 K. PL is sensitive to impur
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2

Dolores, Gonzalo Mármol de los. "Low-alkalinity matrix composites based on magnesium oxide cement reinforced with cellulose fibres." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/74/74133/tde-17082017-113846/.

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A lower-alkalinity cement based on MgO and SiO2 blends is analysed to develop clinker-free Fibre Reinforced Cementitious Composites (FRCC) with cellulosic fibres in order to solve the durability problems of this type of fibres when used in FRCC with Portland cement. Hydration evolution from 7 to 28 days of different MgO-SiO2 formulations is assessed. The main hydration products are Mg(OH)2 and M-S-H gels for all the formulations studied regardless of age. Hardened pastes are obtained with pH values < 11 and good mechanical properties compared to conventional Portland cement. 60% MgO-40% SiO
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3

Esteves, Ana Catarina de Carvalho. "Nanocompósitos de matriz polimérica do tipo SIO2/ polímero e Cds/ Polímero." Master's thesis, Universidade de Aveiro, 2002. http://hdl.handle.net/10773/21907.

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Mestrado em Ciência e Engenharia de Materiais<br>O principal objectivo desta dissertação foi estudar novas perspectivas na preparação de nanocompósitos de matriz polimérica, através da síntese e caracterização de nanomateriais do tipo SiO2/ polímero e CdS/ polímero. O primeiro capítulo consiste numa revisão bibliográfica, com destaque para os principais tópicos discutidos ao longo da tese. São efectuadas algumas considerações sobre a utilização de nanopartículas inorgânicas como cargas, e sobre os aspectos mais relevantes da aplicação de polímeros como matrizes. São ainda descritas, alg
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4

Costa, Maria Helena Carvalho da. "Coercividade de nanopartículas de CoFe2O4 dispersas em uma matriz de SiO2." Universidade Federal de Sergipe, 2015. https://ri.ufs.br/handle/riufs/5312.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In this work, we study the magnetic properties of CoFe2O4 nanoparticles dispersed in silica (SiO2) matrix. Samples were produced by the sol-gel method and synthesized at different temperatures. The average distance between the particles and thus the nature of inter-particle interactions were controlled for using different concentrations of iron and cobalt salts and the starting material tetraethylorthosilicate (TEOS). The samples were characterized by thermogravimetry (TG), X-ray fluorescence (XRF), X-ray diffraction (XRD), transmi
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5

Canevari, Thiago da Cruz 1980. "Construção de sensores eletroquímicos utilizando como matriz materiais cerâmicos SI 'O IND. 2'/ 'M IND. X' 'O IND. Y', e materiais cerâmicos eletricamento condutores SI 'O IND. 2'/ C/'M IND. X' 'O IND. Y', preparados pelo processo sol-gel." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249700.

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Orientador: Yoshitaka Gushikem<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-20T16:56:50Z (GMT). No. of bitstreams: 1 Canevari_ThiagodaCruz_D.pdf: 2821542 bytes, checksum: 1a2c7ff35fcd8e34d5867b81b4bb960b (MD5) Previous issue date: 2012<br>Resumo: Este trabalho tem como objetivo sintetizar e caracterizar três materiais diferentes obtidos pelo processo sol-gel: SiO2/SnO2, SiO2/SnO2/Sb2O5 e o filme de Nb2O5 formado sobre a superfície do material cerâmico SiO2/C e utilizá-los como matriz no desenvolvimento de sensores eletro
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6

Karakuscu, Aylin. "Synthesis and Characterization of Luminescent Nanostructured SiOC Thin Films." Doctoral thesis, Università degli studi di Trento, 2010. https://hdl.handle.net/11572/368279.

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A new approach to obtain visible luminescence from sol-gel derived SiOC films is proposed. This novel method is based on a simple processing route to produce nanostructured multicomponent ceramics. According to this route, hybrid sol-gel derived precursors are converted to ceramic materials by a pyrolysis process in controlled atmosphere at 800-1000°C. Higher temperatures lead to formation of Si-rich SiOC, C-rich SiOC or stoichiometric SiOC according to the starting composition. The final composition, which is relevant to line emission, can be easily controlled through a number of processing
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7

Karakuscu, Aylin. "Synthesis and Characterization of Luminescent Nanostructured SiOC Thin Films." Doctoral thesis, University of Trento, 2010. http://eprints-phd.biblio.unitn.it/317/1/PhD_Dissertation_Aylin_Karakuscu.pdf.

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A new approach to obtain visible luminescence from sol-gel derived SiOC films is proposed. This novel method is based on a simple processing route to produce nanostructured multicomponent ceramics. According to this route, hybrid sol-gel derived precursors are converted to ceramic materials by a pyrolysis process in controlled atmosphere at 800-1000°C. Higher temperatures lead to formation of Si-rich SiOC, C-rich SiOC or stoichiometric SiOC according to the starting composition. The final composition, which is relevant to line emission, can be easily controlled through a number of processing p
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8

Falkenstrand, Johanna, and Camilla Lemos. "Fostering Proactiveness in Data-Driven Matrix Organizations : A Study of Alfa Laval's Distribution Center in Tumba." Thesis, KTH, Industriell produktion, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254341.

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Globalization has increased the complexity of the business world, as it adds new dimensions to companies’ operations, such as global suppliers and customers, and competition from global actors. To handle the complexity, companies are pressured to become more data-driven to be able to measure and align their operations, and create possibilities for efficiency and competitiveness [Skjott-Larsen etal., 2007; Long, 2018]. In order to enable the change towards becoming more data-driven, companies need to rethink the structure of their organization. Matrix structures have gained popularity, since it
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9

Ferioli, Elena. "The hybrid model matrix in industrial application: il caso Meta System S.p.A." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25086/.

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Negli ultimi decenni, nell’ambiente aziendale sta prendendo sempre più piede l’utilizzo di modelli specifici per l’approccio all’innovazione. Dei più comuni e utilizzati in letteratura, quelli analizzati in questo studio, sono lo Stage and Gate per lo sviluppo di nuovi prodotti, il Lean six-sigma per progetti di miglioramento, l’Agile per ottimizzare e velocizzare i processi, la Lean per ridurre gli sprechi e il Design Thinking per comprendere meglio i bisogni del cliente. Per sfruttare al meglio ogni modello è bene che le aziende abbiano una linea guida che illustri quando utilizzare e
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10

Baganha, César Chiesorin. "Considerações sobre a origem da emissão luminosa de Nanocristais de Si em Matriz de SiO2." reponame:Repositório Institucional da UFPR, 2010. http://hdl.handle.net/1884/23720.

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Resumo: Sistemas nanoestruturados de Si tem sido alvo de intensos estudos e discussões no meio científico devido às suas propriedades eletrônicas e ópticas, as quais produzem luminescência no visível, iferentes das apresentadas pelo Si bulk. O presente trabalho traz considerações a respeito de tal luminescência e visa contribuir com as discussões a respeito de sua origem apresentando um estudo detalhado da emissão luminosa de nanocristais Si obtidos pela técnica de implantação iônica de íons de silício (Si+) em matriz de dióxido de silício (SiO2). Utilizando diferentes técnicas ópticas (fotol
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11

Zanatta, Marco. "Vibrational dynamics in strong glasses: the cases of densified v-SiO2 and v-SiSe2." Doctoral thesis, Università degli studi di Trento, 2011. https://hdl.handle.net/11572/368916.

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In this work we will face the problem of the vibrational properties of glasses focusing on the origin and nature of the boson peak (BP). This feature is an universal characteristic of glasses and a fingerprint of the presence of disorder. Two samples have been chosen for this study. The first is permanently densified vitreous SiO$_2$. Permanent densification has been exploited to tune the glassy properties focusing on their evolution. The second sample is a silicon-selenium glass whose low sound velocity allows a detailed study of its dynamics by means of neutron inelastic scattering.
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12

Budd, Michael Ian. "Mechanical property - fracture behaviour - microstructure relationships in particulate reinforced MgO#centre dot#SiO←2 based glass-ceramic matrix composites." Thesis, University of Bath, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260277.

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13

Carvalho, Ryana. "Encapsulation of SiO2 coated Gd2O3+: Eu3+ nanoparticles using PAA macroRAFT agents." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/7572.

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Mestrado em Ciência e Engenharia dos Materiais<br>O desenvolvimento de novos materiais com propriedades funcionais é uma constante necessidade para a maturação e sustentabilidade da sociedade como um todo. No que diz respeito aos nanocompósitos de matriz polimérica, uma das maiores restrições ao seu uso é a preservação e o controlo das propriedades físicas únicas das cargas de dimensões nanométricas, sendo portanto essencial manter a sua integridade e conseguir dispersões uniformes. Tal é particularmente difícil no caso de nanopartículas anisotrópicas, tais como as fibras de Gd2O3:Eu 3+
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14

Zanatta, Marco. "Vibrational dynamics in strong glasses: the cases of densified v-SiO2 and v-SiSe2." Doctoral thesis, University of Trento, 2011. http://eprints-phd.biblio.unitn.it/668/1/PhDThesis.pdf.

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In this work we will face the problem of the vibrational properties of glasses focusing on the origin and nature of the boson peak (BP). This feature is an universal characteristic of glasses and a fingerprint of the presence of disorder. Two samples have been chosen for this study. The first is permanently densified vitreous SiO$_2$. Permanent densification has been exploited to tune the glassy properties focusing on their evolution. The second sample is a silicon-selenium glass whose low sound velocity allows a detailed study of its dynamics by means of neutron inelastic scattering.
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15

Lopes, João Marcelo Jordão. "Nanoestruturas luminescentes de Ge e Sn em camadas de SiO/sub 2/ implantadas com íons." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2005. http://hdl.handle.net/10183/4702.

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Neste trabalho estudam-se as propriedades de nanoestruturas de Ge e Sn formadas em amostras de SiO2/Si(100) através dos processos de implantação iônica e tratamento térmico. A formação de nanocristais de Ge foi investigada em função de tratamentos térmicos em ambiente de N2. Os resultados obtidos foram correlacionados com as propriedades de luminescência das amostras, sendo feita uma discussão sobre os mecanismos atômicos envolvidos no processo de crescimento dos nanocristais de Ge, bem como seus efeitos na criação de centros luminescentes no interior da camada de SiO2, que são responsáveis po
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16

Drira-Halouani, Raja. "Etudes mécanique et microstructurale des composites à matrice nickel et renforts particulaires de céramiques (Al2O3,SiO2,NiO)." Toulouse, INPT, 1996. http://www.theses.fr/1996INPT023G.

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Ce travail traite de l'elaboration par frittage, de la caracterisation microstructurale (met, meb) et de l'etat des contraintes residuelles d'origine thermique dans les composites a matrice metallique (nickel) et a renforts: dispersion des particules d'oxydes (al#2o#3, sio#2, nio). Le choix du nickel comme phase matricielle est motive par plusieurs considerations. La plus importante est que le nickel possede une symetrie cristalline cubique dont le reseau possede une haute symetrie ; ce qui nous permet d'etudier la perturbation apportee, en terme d'anisotropie de dilatation thermique, par l'aj
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17

Kwak, Sangshin. "Design and analysis of modern three-phase AC/AC power converters for AC drives and utility interface." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2336.

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Significant advances in modern ac/ac power converter technologies and demands of industries have reached beyond standard ac/ac power converters with voltage-source inverters fed from diode rectifiers. Power electronics converters have been matured to stages toward compact realization, increased high-power handling capability, and improving utility interface. Modern ac/ac power converter topologies with various control strategies have been introduced for the further improvements, such as matrix converters, current-fed converters, PWM rectifiers, and active power filters. In this dissertation, s
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18

Mitronika, Maria. "Dépôt de couches minces de TiO2 – SiO2 par association plasma et sol-gel : impact du procédé de dépôt et de la composition sur les propriétés, application à l'optique intégrée." Thesis, Nantes, 2020. http://www.theses.fr/2020NANT4013.

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Ce travail décrit une approche hybride couplant le procédé de dépôt chimique en phase vapeur assistée par plasma (PECVD) avec l’injection d’une solution colloïdale fabriquée au laboratoire pour la synthèse de films inorganiques nanocomposites (NC) incluant des nanoparticules de TiO2 (NPs) dans une matrice SiO2. Deux études préliminaires ont été réalisées en utilisant les deux méthodes classiques de dépôt : enduction centrifuge et PECVD. La première nous a permis de mieux comprendre les interactions des NPs de TiO2 avec un plasma O2 à basse pression (3m Torr) et la seconde d’élucider la nature
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19

Cossou, Benjamin. "Elaboration par CVI/CVD et caractérisation de dépôts dans le système Si-N(-O)." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0144.

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La thèse porte sur cette couche de nitrure ou d’oxynitrure de silicium. Le déroulé prévoit l’élaboration des deux types de dépôts par voie gazeuse (par Chemical Vapor Infiltration CVI), la caractérisation de ces dépôts (par tous les moyens scientifiques à disposition et jugés utiles), ainsi que des essais en conditions proches de l’application visée (haute température, présence de phases liquides) pour juger de l’efficacité de ces dépôts et notamment effectuer une comparaison entre le nitrure et l’oxynitrure. Une étude complète des paramètres modifiables lors de l’élaboration et de leur effet
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20

Karoomi, Sami Nooh. "Dispositif à lignes microélectroniques annulaires à six accès : Application à la modulation numérique de phase et aux analyseurs de réseaux microondes." Limoges, 1988. http://www.theses.fr/1988LIMO0048.

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Les dispositifs symétriques à lignes microélectroniques annulaires à six accès sont analysés par la méthode de superposition de modes pair et impair. Une autre méthode d'analyse est aussi développée. Elle permet de déterminer les matrices [S] de coupleurs anulaires (anneaux) symétriques ou asymétriques à N accès. Les coupleurs 6,6,1 et 6,8,1, qui sont des circuits à six accès composés respectivement de 6 et de 8 tronçons de lignes γ/4, ayant une impédance caractéristique, sont exploités dans deux applications. L'anneau 6,6,1 est utilisé comme un coupleur unique dans un modulateur à huit états
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21

Åkesson, Emma, and David Gunnarsson. "Förstudie av transportsystem för spillmaterial : Fallstudie på INP Förpackningar AB." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-85580.

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Det finns olika tekniska lösningar för hantering, transport och återvinning av plastindustrins spillmaterial, men vilken metod som är mest lämpad för en specifik industri är svårt att avgöra. Syftet med studien var att få ökad kunskap och förståelse för hur faktorer som arbetsmiljöpåverkan, miljöpåverkan, funktion, flödeseffektivitet och investeringskostnad påverkar val av transportlösning för spillmaterial. Baserat på dessa faktorer är studiens mål att genom en förstudie presentera ett beslutsunderlag för en eventuell investering. För att finna den mest lämpade transportlösningen och förstå d
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22

OBRADOVIC, SUSANNE. "Definition d'une matrice vitroceramique pour composites thermostructuraux a fibres sic dans le systeme bao-cao-al#2o#3-sio#2 : etude de la cristallisation et de la densification." Rennes 1, 1996. http://www.theses.fr/1996REN10048.

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L'objet de ce memoire porte sur la cristallisation dans le systeme quaternaire, cao-bao-al2o3-sio2 (bcas) afin d'elaborer une matrice vitroceramique renforcee par un renfort de type sic. Le domaine de composition choisi permet la cristallisation en proportion variable de deux phases majoritaires, le celsian monoclinique baal2sio8 ( = 2,3 10-6c-1) et l'anorthite triclinique caal2sio8 ( = 4,5 10-6c-1) ce qui permet d'adapter le coefficient de dilatation thermique de la matrice a celui du renfort et ainsi d'intervenir sur la tenue mecanique du composite. De plus, cette matrice tres refractaire do
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23

Lukáčová, Mária. "Procesná analýza medzinárodnej finančnej inštitúcie." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-7788.

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The final thesis is focused on a process management in praxes. The theoretical part of thesis concludes different techniques of mapping and analysing of a process. The practical part is focused on a practical analyse and mapping of the certain process in international financial institution. On the base of the process analyse are suggested changes to optimize the process.
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24

Täuber, Daniela. "Characterization of heterogeneous diffusion in confined soft matter." Doctoral thesis, Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-77658.

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A new method, probability distribution of diffusivities (time scaled square displacements between succeeding video frames), was developed to analyze single molecule tracking (SMT) experiments. This method was then applied to SMT experiments on ultrathin liquid tetrakis(2-ethylhexoxy)silane (TEHOS) films on Si wafer with 100 nm thermally grown oxide, and on thin semectic liquid crystal films. Spatial maps of diffusivities from SMT experiments on 220 nm thick semectic liquid crystal films reveal structure related dynamics. The SMT experiments on ultrathin TEHOS films were complemented by fluores
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25

Malik, Nadeem Ahmed. "Optical characterization of graphene in vacuum ultraviolet spectral region & spectroscopic studies of colliding laser plasmas (Al, Si)." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3424788.

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Il presente lavoro di tesi ha come obiettivo principale lo studio di materiali innovativi per lo sviluppo di componenti ottici nella regione spettrale dell’estremo ultravioletto (EUV) e dell’ultravioletto da vuoto (VUV). I campi di applicazione sono molteplici e spaziano dalla litografia EUV all’esplorazione spaziale. Questo tipo di ricerca richiede contemporaneamente l’utilizzo e la messa a punto di adeguati metodi di caratterizzazione, che permettano una completa analisi delle proprietà nella regione spettrale di interesse. Il risultato più interessante presentato è sicuramente l’analisi o
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26

Maltoni, Elia. "“Elaborazione ed implementazione di una metodologia innovativa per il miglioramento dei metodi di assemblaggio e di collaudo: il caso SCM Group S.p.A.”." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14396/.

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L'elaborato espone il contributo del candidato nel processo di elaborazione di una tecnica innovativa per il miglioramento dei metodi di assemblaggio e collaudo di MU-CN. Il modello sarà di riferimento per l’analisi delle attività a valore e spreco per tutto il gruppo aziendale. Facendo riferimento alle legioni romane: la tecnica vuole prima di tutto strutturare la strategia di attacco ovvero dichiarare come dovrebbero muoversi le legioni, poi enunciare ai singoli soldati (industrializzatori/ progettisti) come deve essere usata la spada (strumenti) ed infine quali delle spade a disposizione
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27

Lin, Jian-Hao, and 林建豪. "Study of luminescent mechanisms of silicon nanocrystals embedded in SiOX matrix、ZnO and In2Se3 semiconductors." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/85295411427980655551.

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Samanta, Arup. "Nano-Crystalline Silicon and Quantum Dots in SiOx Matrix: Synthesis by RF Plasma CVD and Characterization for Device Applications." Thesis, 2019. http://hdl.handle.net/10821/8327.

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The aim of this thesis is to deal with one of the important technological issues related to silicon based technology and synthesis of silicon based nanostructures by a new approach feasible for device applications. Use of noble gases like, Ar, He, Xe, etc., are generally utilized to increase the deposition rate of silicon thin films in RF plasma CVD. However, high Ar dilution leads to columnar growth and produces mostly defective network, while Xe dilution maintains an amorphous nature of the network even at a very high RF power to the plasma. Using He as the diluent to the plasma, the recent
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29

Hsieh, Chang Lin, and 謝長霖. "Optical properties of ion-beam-synthesized Au nanoparticles in SiO2 matrix." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/5e9esx.

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碩士<br>國立清華大學<br>核子工程與科學研究所<br>104<br>In recent years, gold (Au) nanoparticles have been synthesized by means of various methods and have received promising potential in optical and biomedical detection. Au nanoparticles contain some remarkable dimension-dependent optical properties due to surface plasmon resonance (SPR) in Au nanoparticles which causes strong absorption of the incident light in visible light regions. Since SPR in well-crystallized Au nanoparticles can enhance the local electromagnetic field, it is thus expected that a greater efficiency in the photoluminescence (PL), originati
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30

Yenmin-Liu and 廖彥閔. "Fabrication and the matrix effect of photoannealing for AuNanorod@SiO2 Nanocomposite Particles." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/00248379934841723939.

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碩士<br>國立中正大學<br>化學研究所<br>89<br>We have fabricated colloidal Au nanorods via electrochemical method and they are embedded in a thin layer of silica with uneven thickness. The sol-gel process is responsible for the production of such core-shell nanostructure, AuNanorod@SiO2. The sol-gel material is not only porous and transparent but also electrically insulating. It can mimic the shielding layer of a bulk conducting wire. Furthermore, taking advantage of the characters of the sol-gel, we can further put additional function onto the Au nanorod particles via surface modification and turn them int
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Wu, Hung-Cheng, and 吳纮丞. "Transitional metal oxide nanoparticle embedded in SiO2 glass matrix: magnetic and dielectric study." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/14592266386641705024.

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碩士<br>國立中山大學<br>物理學系研究所<br>101<br>Transitional metal oxide nanoparticles (doping 0.5 mole %) embedded in a silica glass using the sol-gel method with different annealing temperatures. For iron-oxide nanoparticles system. An interesting colossal enhancement of dielectric constant is observed around room temperature with diffuse phase transition due to the thermally activated oxygen vacancies. In addition, there is a feature observed near 65 K due to ferroelectric effect. The magnetodielectric effect observed in the glass composite is considered to be affected by magnetoresistance changes. For p
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Liu, Chen-Kang, and 劉振綱. "Using Six Sigma Methodology to Enhance Color Filter Black Matrix Process Capability." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/69186196139046219065.

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碩士<br>中原大學<br>工業與系統工程研究所<br>105<br>This thesis improves the process capability of high-resolution products of color filter factory. By the Six Sigma Methodology which follows the steps including define, measure, analyze, improve, and control, the Black Matrix Process of Color Filter process capability is thus enhanced. Firstly, the key quality characteristics are defined and the accuracy of the measurement system is confirmed. Then, the key factors which affect the quality characteristics are found. Finally, L8 orthogonal table from Taguchi method is applied to reduce experimental times and th
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Hong-JinTsai and 蔡弘晉. "Application of Homography Matrix Based 3D Reconstruction Algorithm on Six-Axis Articulated Robot." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/78882669942771330116.

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碩士<br>國立成功大學<br>電機工程學系<br>102<br>In recent years, with labor costs in developing countries rapidly increasing and a trend in the manufacturing industry of moving back to America and Europe, the topic of automation has once again become a hot issue. In the meantime, the growing trend of customized “small-volume large-variety production” indicates that the flexibility of production line is more critical than ever. Nowadays, surface machining applications account for about one-third of applications in industrial robots. In this field, if a 3D geometry model of objects for machining cannot be obta
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Huang, Chien-Lun, and 黃建綸. "Development of a Six-axis Force/Torque Sensor Calibration System and Transfer Matrix." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nyqdj8.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>106<br>This study developed a six-axis force/torque sensor and a calibration system. In order to improve the stability of the calibration system, we used VCMs (voice coil motor) as the output force device of the system. Simply and directly structures designed also make the six-axis calibration force/torque much more reliable. Furthermore, the system combined two precise one-axis load cells to receive the output reactionary force from VCMs, then used the proportional-integral-derivative controller (PID controller) to reduce the steady-state time. Finally, there a
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Lin, Chih-Chieh, and 林志杰. "Design of Microwave CMOS 3-dB Quadrature Hybrid and Six-Beam Butler Matrix RFICs." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/79726551668181629960.

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碩士<br>國立中正大學<br>電機工程所<br>96<br>In this thesis work, a miniaturized CMOS hybrid is studied and implemented in the related circuits. By using the transformer-based model and compensatory capacitor, the phase error caused by substrate loss can be compensated, and the chip size can be dramatically reduced. The miniaturized hybrids, which are realized by lump elements using 0.18-
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EN, CHU CHEN, and 朱呈恩. "Applying Six Sigma to improving the black matrix process and incidence of common defect for equipment management." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/98885858195930885986.

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碩士<br>明新科技大學<br>工業工程與管理系碩士在職專班<br>103<br>In the global competitive environment, major companies dedicated to compressing its manufacture time and produce the new products meeting the demand. Therefore,its very important to meet the customers need by reducing defect factors rate to make the production more efficient, And proceeding risk planning and management of the overall product development system to prevent potential failure occurs to reduce the unsure factors. This study was based on Six Sigma DMAIC improvement practices, using a black matrix color filter process common defect rate as a
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KE, CHUNG-CHIH, and 柯宗志. "Analyzing the Application of Lean Six Sigma in the Enhancement of Manufacturing Capacity－An Example of Black Matrix Process." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/23070847666487254541.

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碩士<br>逢甲大學<br>經營管理碩士在職專班<br>100<br>Color Filter is the key component of the TFT-LCD, and around 19% of the total cost of accounting for materials, is the main factor to colorize the liquid crystal display. Due to cost considerations, most of panel makers have their own color filter factory in order to reduce production cost, even though partially outsourcing to ensure steady supply of CF. The lithography process implements the new process PSA to simplify the wide viewing angle of the process and results in MVA process production lines, which can be used to manufacture RGB color layer and photo
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Sacramento, Joaquim Manuel da Graça. "Compósitos de matriz de Si3N4 reforçada com fibrilas de SiC processados com fases líquidas derivadas do sistema Li2O-Al2O3-SiO2." Doctoral thesis, 1994. http://hdl.handle.net/10773/24381.

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Esta nota pretende dar a conhecer resumidamente de que maneira foi organizado este trabalho para cumprir os objectivos que nos proposemos realizar. Como se pode verificar com mais detalhe nos Objectivos do trabalho (ver índice, página ii), pretendia-se sinterizar sem pressão e a baixa temperatura o niíreto de silício (Si3N4) e um material compósito, constituído por uma matriz, também de Si3N4, e uma fase dispersa de carboneto de silício (fase de reforço) com a forma de fibrilas (compósitos que designamos Si3Nd/SiCf). Como se pode observar no Índice (página ii), esta tese esta subdividida
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Huang, Yuan-Pin, and 黃元品. "Organic-Inorganic Hybrid Composites Material Prepared via Sol-Gel Process. (I)Microstructural and Morphological Characteristics of PS-SiO2 Nanocomposites. (II)Synthesis and Optical Properties in the Sol-Gel Matrix Bearing an Azobenzene Chromophores." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/67738895066525895921.

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碩士<br>國立中興大學<br>化學系<br>87<br>ABSTRACT Part I. Microstructural and Morphological Characteristics of PS-SiO2 Nanocomposites A series of organic-inorganic hybrid materials have been prepared by copolymerizing styrene and alkoxysilane-methacrylate via sol-gel process. The alkoxysilane-containing copolymer precursors were synthesized by free-radical copolymerization of styrene with an alkoxysilane-containing monomer, methacrylic acid 3-(trimethoxysilyl)propyl ester (MAMSE), at several feeds. The copolymer precursors were then hydrolyzed and condensed to generate PS-SiO2 hybr
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