Dissertations / Theses on the topic 'Self-orthogonal'
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Pinto, Vieira Vânia Margarida. "Orthogonal self-assembly of bioactive hydrogels." Thesis, University of York, 2017. http://etheses.whiterose.ac.uk/19305/.
Full textGrimm, Felix D. M. [Verfasser], and Andreas [Akademischer Betreuer] Hirsch. "Self-Assembly of Metal-Centered Supramolecular Architectures with Orthogonal Binding Motifs / Felix Grimm. Betreuer: Andreas Hirsch." Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2012. http://d-nb.info/1018801383/34.
Full textLaupheimer, Michaela [Verfasser], and Cosima [Akademischer Betreuer] Stubenrauch. "Gelled bicontinuous microemulsions : a new type of orthogonal self-assembled systems / Michaela Laupheimer. Betreuer: Cosima Stubenrauch." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2014. http://d-nb.info/1049931793/34.
Full textFriday, Shawnta Shajuan. "Racioethnic differences in job satisfaction : a test of orthogonal cultural identification theory and self-categorization theory." FIU Digital Commons, 1997. http://digitalcommons.fiu.edu/etd/3419.
Full textPinnawala, Nimalsiri, and nimalsiri pinnawala@rmit edu au. "Properties of Trace Maps and their Applications to Coding Theory." RMIT University. Mathematical and Geospatial Sciences, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080515.121603.
Full textLopez-Perez, David. "Models and optimisation methods for interference coordination in self-organising cellular networks." Thesis, University of Bedfordshire, 2011. http://hdl.handle.net/10547/295749.
Full textHancco, Suni Mijael. "Combinações lineares de polinômios de Chebyshev e polinômios auto-recíprocos /." Presidente Prudente, 2019. http://hdl.handle.net/11449/183598.
Full textResumo: O presente trabalho tem como objetivo principal estudar o comportamento dos zeros de alguns tipos de polinômios auto-recíprocos gerados a partir de polinômios quaseortogonais de Chebyshev de ordens um e dois. Os zeros dos polinômios auto-recíprocos que construímos estão ligados aos zeros de polinômios quase-ortogonais. Os polinômios quaseortogonais podem ser obtidos a partir de uma sequência de polinômios ortogonais. Neste trabalho, usaremos os polinômios de Chebyshev para obter polinômios quase-ortogonais e usaremos resultados sobre o comportamento de zeros desses polinômios para obter informações sobre o comportamento dos zeros de polinômios auto-recíprocos.
Abstract: The main objective of this work is to study the behavior of the zeros of some classes of self-reciprocal polynomials related to Chebyshev quasi-orthogonal polynomials of order one and two. The zeros of self-reciprocal polynomials are linked to the zeros of quasiorthogonal polynomials, which can be obtained from a sequence of orthogonal polynomials. In this work we use the Chebyshev polynomials to obtain classes of quasi-orthogonal polynomials and from results on the behavior of their zeros, we obtain information about the zeros of some classes of self-reciprocal polynomials.
Mestre
NGUYEN, MINH THANG. "Arranging multiple types of enzymes in defined space by modular adaptors." Kyoto University, 2019. http://hdl.handle.net/2433/242324.
Full textHayajneh, Mohammed. "A generalized approach for mechanics of chip formation in steady-state and dynamic orthogonal metal cutting using a new model of shear zone with parallel boundaries and its validation to cutting-forces prediction in self-piloting machining." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0005/NQ39626.pdf.
Full textSchäfer, Philip Sudadyo. "Tuning of color and polarization of the fluorescence of nano-ribbons using laser microscopy and controlled self-assembly." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0435/document.
Full textMaterials with specific emissive properties can be obtained by the controlled organization of fluorophores at the molecular, nano- and microscales. In this work, polarized blue light emission is achieved by the highly anisotropic self-assembly of alkoxylated n-acenes into nano-ribbons. Fluorescence microscopy techniques were used to determine the growth mechanism and were combined to X-ray crystallography to determine the molecular packing in the nano-objects. The study revealed that the formation of the nano-ribbons is induced not only by the very common Ostwald ripening mechanism but also by an oriented attachnment growth, rarely observed with such evidence in organic systems. Besides more common techniques, single molecule fluorescence polarization microscopy contributed to characterize the molecular packing, although the nano-objects with high chromophore density represent very challenging samples. In this work, the properties of the nano-ribbons have been controlled at the microscopic level by the growth conditions, as well as by the addition of dopants Thereby, combining different molecules and photochemistry at the sub-micrometer scale under the microscope, colorful patterned ribbons could be obtained. In addition, orthogonal assembly was exploited to grow interpenetrated networks. The latter demonstrated dual color-emission, as well as inter-object energy transfer and electroluminescence at junctions
Youssef, Marie-Josépha. "Nouvelles approches pour l’allocation des ressources dans les réseaux de communication futurs utilisant NOMA et aidés par les drones." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2020. http://www.theses.fr/2020IMTA0208.
Full textWith a forecasted number of billions of connected devices, the Internet of Things (IoT) is driving the evolution of wireless communication networks. This exponential increase in the number of connected devices is accompanied by a proliferation of heterogeneous IoT applications, resulting in the emergence of new wireless use cases that greatly differ from conventional multimedia services. When compared to previous communication systems, next generation wireless communication systems are expected to provide very high data rates, high reliability, low latency, improvement in the quality of service (QoS) perceived by users and an increase in the number of supported users.To meet these requirements, some of the key elements future communication systems must leverage include novel spectrum access techniques such as non-orthogonal multiple access (NOMA) and uncoordinated spectrum access, self-organized networks (SON) and unmanned aerial vehicles (UAV)-aided communication networks. The main objective of this thesis is to exploit these key elements to provide novel resource allocation and net-work design solutions that aim at optimizing the use of available radio resources in next generation wireless communication networks. Different settings are considered, spanning wireless systems with heterogeneous mobile traffic requirements, uncoordinated spectrum access in SONs and UAV-aided communication systems. For each setting, a solution leveraging NOMA scheduling is proposed. The obtained results of the proposed solutions are promising, where these solutions are shown to outperform existing techniques from the literature
Nagpure, Suraj R. "SYNTHESIS OF TITANIA THIN FILMS WITH CONTROLLED MESOPORE ORIENTATION: NANOSTRUCTURE FOR ENERGY CONVERSION AND STORAGE." UKnowledge, 2016. http://uknowledge.uky.edu/cme_etds/67.
Full textSarvepalli, Pradeep Kiran. "Quantum stabilizer codes and beyond." Diss., Texas A&M University, 2008. http://hdl.handle.net/1969.1/86011.
Full textBelmar, Gil Mario. "Computational study on the non-reacting flow in Lean Direct Injection gas turbine combustors through Eulerian-Lagrangian Large-Eddy Simulations." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/159882.
Full text[CA] El principal desafiament als motors turbina de gas utilitzats a la aviació resideix en augmentar l'eficiència del cicle termodinàmic mantenint les emissions contaminants per davall de les rigoroses restriccions. Aquest fet comporta la necessitat de dissenyar noves estratègies d'injecció/combustió que radiquen en punts d'operació perillosos per la seva aproximació al límit inferior d'apagat de flama. En aquest context, el concepte Lean Direct Injection (LDI) sorgeix com a eina innovadora a l'hora de reduir els òxids de nitrogen (NOx) emesos per les plantes propulsores dels avions de nova generació. Sota aquest context, aquesta tesis té com a objectius contribuir al coneixement dels mecanismes físics que regeixen el comportament d'un cremador LDI i proporcionar ferramentes d'anàlisi per a una profunda caracterització de les complexes estructures de flux turbulent generades a l'interior de la càmera de combustió. Per tal de dur-ho a terme s'ha desenvolupat una metodología numèrica basada en CFD capaç de modelar el flux bifàsic no reactiu a l'interior d'un cremador LDI acadèmic mitjançant els enfocaments de turbulència U-RANS i LES en un marc Eulerià-Lagrangià. La resolució numèrica d'aquest problema multiescala s'aborda mitjançant la resolució completa del flux al llarg de tots els elements que constitueixen la maqueta experimental, incloent el seu pas pel swirler i l'entrada a la càmera de combustió. Açò es duu a terme a través de dos codis CFD que involucren estratègies de mallat diferents: una basada en la generación automàtica de la malla i en l'algoritme de refinament adaptatiu (AMR) amb CONVERGE i l'altra que es basa en una tècnica de mallat estàtic més tradicional amb OpenFOAM. D'una banda, s'ha definit una metodologia per tal d'obtindre una estrategia de mallat òptima mitjançant l'ús de l'AMR i s'han explotat els seus beneficis front als enfocaments tradicionals de malla estàtica. D'aquesta forma, s'ha demostrat que l'aplicabilitat de les ferramente de control de malla disponibles en CONVERGE com el refinament fixe (fixed embedding) i l'AMR són una opció molt interessant per tal d'afrontar aquest tipus de problemes multiescala. Els resultats destaquen una optimització de l'ús dels recursos computacionals i una major precisió en les simulacions realitzades amb la metodologia presentada. D'altra banda, l'ús d'eines CFD s'ha combinat amb l'aplicació de tècniques de descomposició modal avançades (Proper Orthogonal Decomposition and Dynamic Mode Decomposition). La identificació numèrica dels principals modes acústics a la càmera de combustió ha demostrat el potencial d'aquestes ferramentes al permetre caracteritzar les estructures de flux coherents generades com a conseqüència del trencament dels vòrtex (VBB) i dels raigs fortament arremolinats presents al cremador LDI. A més, la implantació d'estos procediments matemàtics ha permès recuperar informació sobre les característiques de la dinàmica del flux i proporcionar un enfocament sistemàtic per tal d'identificar els principals mecanismes que sustenten les inestabilitats a la càmera de combustió. Finalment, la metodologia validada ha sigut explotada a traves d'un Diseny d'Experiments (DoE) per tal de quantificar la influència dels factors crítics de disseny en el flux no reactiu. D'aquesta manera, s'ha avaluat la contribución individual d'alguns paràmetres funcionals (el nombre de pales del swirler, l'angle de les pales, l'amplada de la càmera de combustió i la posició axial de l'orifici de l'injector) en els patrons del camp fluid, la distribució de la mida de gotes del combustible líquid i l'aparició d'inestabilitats en la càmera de combustió mitjançant una matriu ortogonal L9 de Taguchi. Aquest estudi estadístic és un bon punt de partida per a futurs estudis de injecció, atomització i combustió en cremadors LDI.
[EN] Aeronautical gas turbine engines present the main challenge of increasing the efficiency of the cycle while keeping the pollutant emissions below stringent restrictions. This has led to the design of new injection-combustion strategies working on more risky and problematic operating points such as those close to the lean extinction limit. In this context, the Lean Direct Injection (LDI) concept has emerged as a promising technology to reduce oxides of nitrogen (NOx) for next-generation aircraft power plants In this context, this thesis aims at contributing to the knowledge of the governing physical mechanisms within an LDI burner and to provide analysis tools for a deep characterisation of such complex flows. In order to do so, a numerical CFD methodology capable of reliably modelling the 2-phase nonreacting flow in an academic LDI burner has been developed in an Eulerian-Lagrangian framework, using the U-RANS and LES turbulence approaches. The LDI combustor taken as a reference to carry out the investigation is the laboratory-scale swirled-stabilised CORIA Spray Burner. The multi-scale problem is addressed by solving the complete inlet flow path through the swirl vanes and the combustor through two different CFD codes involving two different meshing strategies: an automatic mesh generation with adaptive mesh refinement (AMR) algorithm through CONVERGE and a more traditional static meshing technique in OpenFOAM. On the one hand, a methodology to obtain an optimal mesh strategy using AMR has been defined, and its benefits against traditional fixed mesh approaches have been exploited. In this way, the applicability of grid control tools available in CONVERGE such as fixed embedding and AMR has been demonstrated to be an interesting option to face this type of multi-scale problem. The results highlight an optimisation of the use of the computational resources and better accuracy in the simulations carried out with the presented methodology. On the other hand, the use of CFD tools has been combined with the application of systematic advanced modal decomposition techniques (i.e., Proper Orthogonal Decomposition and Dynamic Mode Decomposition). The numerical identification of the main acoustic modes in the chamber have proved their potential when studying the characteristics of the most powerful coherent flow structures of strongly swirled jets in a LDI burner undergoing vortex breakdown (VBB). Besides, the implementation of these mathematical procedures has allowed both retrieving information about the flow dynamics features and providing a systematic approach to identify the main mechanisms that sustain instabilities in the combustor. Last, this analysis has also allowed identifying some key features of swirl spray systems such as the complex pulsating, intermittent and cyclical spatial patterns related to the Precessing Vortex Core (PVC). Finally, the validated methodology is exploited through a Design of Experiments (DoE) to quantify the influence of critical design factors on the non-reacting flow. In this way, the individual contribution of some functional parameters (namely the number of swirler vanes, the swirler vane angle, the combustion chamber width and the axial position of the nozzle tip) into both the flow field pattern, the spray size distribution and the occurrence of instabilities in the combustion chamber are evaluated throughout a Taguchi's orthogonal array L9. Such a statistical study has supposed a good starting point for subsequent studies of injection, atomisation and combustion on LDI burners.
Belmar Gil, M. (2020). Computational study on the non-reacting flow in Lean Direct Injection gas turbine combustors through Eulerian-Lagrangian Large-Eddy Simulations [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/159882
TESIS
Guo, Der-Yuan, and 郭德源. "Designing on Self-Excited Series Resonant Electronic Ballasts Using Consecutive Orthogonal Arrays." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/81158283907034100095.
Full text國立中山大學
電機工程學系研究所
86
Self-excited resonant inverters are widely used in electronic ballasts for driving fluorescent However, the operating characteristics of the self-excited resonant electronic ballasts depoend on not only the circuit component values but also the storage-time of the used power switches and the saturation point of the self-excitation transformers. All these effects are mutual-interactive leading to difficulty in circuit design. This thesis proposes a design method using consecutive orthogonal arrays. The design of a self-excited series-resonant electronic ballast is used as an example to illustrate the arrangement and presiding of the orthogonal arrays. It is proved that the proposed method can find the circuit component values meeting the required specifications through few steps of experimental tests.
Nasr, Esfahani Navid. "The relationship between (16,6,3)-balanced incomplete block designs and (25,12) self-orthogonal codes." 2014. http://hdl.handle.net/1993/23843.
Full textYeh, Chun-Chih, and 葉峻志. "Generating orthogonal dual-polarization self-mode-locked Nd:YAG laser at 946-nm with tunable beat frequency." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/02516021728994350876.
Full text國立交通大學
理學院應用科技學程
104
To achieve an orthogonally polarized dual-frequency self-mode-locked laser, a diode-end-pumped monolithic Nd:YAG crystal is utilized. According to the influence of mechanical stress and thermal stress, property of the birefringence in the isotropic gain medium can be observed and will spilt the laser frequency into two orthogonal eigenstates. The beat frequency between two orthogonally polarized mode-locked states is experimentally obtained and measured. It is experimentally verified that the beat frequency can be tuned by the external force and the cooling temperature on the Nd:YAG crystal.
Ferreira, João Miguel Pimenta. "Osmium tetroxide in a dynamic supramolecular system." Master's thesis, 2018. http://hdl.handle.net/10773/25638.
Full textA Química Supramolecular desempenha um papel importante na obtenção de níveis de complexidade inatingíveis pela Química “clássica”, a sua função inclui a criação de redes de sinalização intricadas. Neste trabalho é feito um relatório da descoberta e caracterização de um com-plexo supramolecular contendo um catalisador—OsO4—cuja encapsulação numa gaiola do tipo Fe4L6 de ligandos imina permite a regulação da sua catálise de forma não covalente. A surpreendente estabilidade da estrutura supramole-cular contendo um oxidante tão poderoso foi estudada e a sua dinâmica caracterizada por RMN. Devido à sensibilidade deste trabalho foram feitas me-lhorias à síntese do sal de guanidínio da gaiola. Outros dois complexos hóspede-hospedeiro análogos foram caracterizados contendo 2,5-di-hidrofurano e benzeno como hóspedes. Embora não tenha sido conseguido, isto teve em vista o design de sistemas mais complexos que apre-sentassem uma variação significativa da cinética de di-hidroxilação normal e demonstrassem regulação ortogonal da catálise.
Mestrado em Química