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Dissertations / Theses on the topic 'Two-dimensional matrix'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Dalley, Simon. "Matrix models and non-perturbative two-dimensional quantum gravity." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357132.

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2

Tsai, Yeng-Chieh. "The application of two-dimensional genomic DNA nylon matrix for environmental samples analysis." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 67 p, 2009. http://proquest.umi.com/pqdweb?did=1654501591&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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3

Struble, John D. "Micro-scale planar and two-dimensional modeling of two phase composites with imperfect bonding between matrix and inclusion." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17345.

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4

Ortiz, Thomas. "Two dimensional Maximal Supergravity, Consistent Truncations and Holography." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2014. http://tel.archives-ouvertes.fr/tel-01070735.

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A complete non trivial supersymmetric deformation of the maximal supergravity in two dimensions is achieved by the gauging of a SO(9) group. The resulting theory describes the reduction of type IIA supergravity on an AdS_2 x S^8 background and is of first importance in the Domain-Wall / Quantum Field theory correspondence for the D0-brane case. To prepare the construction of the SO(9) gauged maximal supergravity, we focus on the eleven dimensional supergravity and the maximal supergravity in three dimensions since they give rise to important off-shell inequivalent formulations of the ungauged

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Rabideau, Charles. "Non-singlet sectors of the c=1 matrix model with connections to two dimensional string theory." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43445.

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The goal of this thesis is to study non-singlet sectors of the c=1 matrix model in order to determine their connection with string theory in two space-time dimensions. It is well understood that the singlet sector of this matrix model is related to the closed string sector of the string theory. The adjoint sector has been connected to long strings stretching from an FZZT brane at infinity. The goal is to find a sector which includes a large number of these long strings which condense to form an FZZT brane in line with a proposal due to Gaiotto. Sectors corresponding to symmetric and antisymmet

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6

Foteinopoulou, Stavroula. "Electromagnetic Wave Propagation in Two-Dimensional Photonic Crystals." Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2003. http://www.osti.gov/servlets/purl/822058-9BqHHS/native/.

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Thesis (Ph.D.); Submitted to Iowa State Univ., Ames, IA (US); 12 Dec 2003.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "IS-T 2048" Stavroula Foteinopoulou. 12/12/2003. Report is also available in paper and microfiche from NTIS.

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Dolasa, Anaita Rustom. "Computer-Aided Design Software for the Undamped Two-Dimensional Static and Dynamic Analysis of Beams and Rotors." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/32283.

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The objective of this research work was to develop a design tool to analyze and design undamped beam and rotor systems in two dimensions. Systems modeled in two dimensions, such as beams with different moments of inertia, could produce varying responses in the each direction of motion. A coupling between the vertical and horizontal motions also exists in rotor systems mounted of fluid film bearings. The computer program called 2DBEAM has been developed to model and provide analyses of such systems in two dimensions. The tool has been based on an existing design package, BEAM9, which in

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Platužienė, Jūratė. "Dvimačių ir trimačių objektų vaizdų geometrinių transformacijų mokomoji sistema." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_142054-02863.

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Darbe analizuojamos dvimačių ir trimačių objektų geometrinės transformacijos. Yra sistemų, kurios pateikia priemones demonstruoti ir atlikti užduotis. Yra galimybė sukurti ir transformuoti figūrą. Bet tokiose sistemose nėra galimybės atlikti kontrolinę užduotį, kurią vėliau galima peržiūrėti ir spręsti apie studento žinias. Analizuojamose sistemose nėra galimybės išsaugoti užduotį. Kuriama sistema turi galimybę sukurti, įtraukti ir išsaugoti naują užduotį. Sistema skirta dviejų tipų vartotojams - paprasti vartotojai ir administratoriai. Paprastas vartotojas gali mokintis transformacijų valdymo

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9

Keim, Frederik [Verfasser], Götz S. [Akademischer Betreuer] Uhrig, and Frithjof [Gutachter] Anders. "Effective one-dimensional models including two-particle interaction from matrix product states / Frederik Keim ; Gutachter: Frithjof Anders ; Betreuer: Götz S. Uhrig." Dortmund : Universitätsbibliothek Dortmund, 2018. http://d-nb.info/116044384X/34.

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10

Giangreco, Marotta Puletti Valentina. "On string integrability a journey through the two-dimensional hidden symmetries in the AdS/CFT dualities /." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-107326.

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11

Mattsson, Peter Aake. "Integrable quantum field theories, in the bulk and with a boundary." Thesis, Durham University, 2000. http://etheses.dur.ac.uk/4225/.

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In this thesis, we consider the massive field theories in 1+1 dimensions known as affine Toda quantum field theories. These have the special property that they possess an infinite number of conserved quantities, a feature which greatly simplifies their study, and makes extracting exact information about them a tractable problem. We consider these theories both in the full space (the bulk) and in the half space bounded by an impenetrable boundary at x = 0. In particular, we consider their fundamental objects: the scattering matrices in the bulk, and the reflection factors at the boundary, both

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12

Johnson, Robert A. "A Comparison Between Two-Dimensional and Three-DimensionalAnalysis, A Review of Horizontal Wood Diaphragms and a Case Study of the Structure Located at 89 Shrewsbury Street, Worcester, MA." Digital WPI, 2008. https://digitalcommons.wpi.edu/etd-theses/524.

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A two-dimensional structural analysis design approach has been the universally accepted method for a small structural engineering design firm. The tools to perform the analysis have been paper and pencil, calculators and more recently personal computers with two-dimensional software. With the introduction of three-dimensional software, a major shift is occurring on how small structural engineering firms approach analysis and design. This thesis research reviews the analysis of an existing building utilizing the standard two-dimensional approach, including horizontal diaphragm-action within

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13

Hirschberg, Daniel. "Sample preparation and mass spectrometry in proteome studies /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7349-934-x/.

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14

Hystad, Grethe. "Periodic Ising Correlations." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/196130.

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We consider the finite two-dimensional Ising model on a lattice with periodic boundaryconditions. Kaufman determined the spectrum of the transfer matrix on the finite,periodic lattice, and her derivation was a simplification of Onsager's famous result onsolving the two-dimensional Ising model. We derive and rework Kaufman's resultsby applying representation theory, which give us a more direct approach to computethe spectrum of the transfer matrix. We determine formulas for the spin correlationfunction that depend on the matrix elements of the induced rotation associated withthe spin operator.

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15

Ahmadouche, Ahmed Abdelkader. "Modélisation électrique des interconnexions multiniveaux en présence de diélectriques stratifiés." Grenoble INPG, 1987. http://www.theses.fr/1987INPG0140.

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Modelisation des lignes d'interconnexions dans un circuit logique a partir de matrices capacite, inductance resistance et conductance. Le probleme est traite en deux ou trois dimensions suivant la configuration envisagee. Presentation des resultats theoriques obtenus sur des dispositifs realises en technologie silicium et arseniure de gallium et en technologie hybride et comparaison a ceux issus du test

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NAVA, MARCO. "TWO DIMENSIONAL AND NOVEL QUASI TWO DIMENSIONAL QUANTUM LIQUIDS." Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/216307.

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In this thesis we have used Quantum Monte Carlo techniques to study two systems that can be regarded as the archetype for neutral strongly interacting systems: 4He, and its fermionic counterpart 3He.More specifically, we have used the Path Integral Ground State and the Path Integral Monte Carlo methods to study a system of two dimensional 3He (2d-3He) and a system of 4He adsorbed on Graphene-Fluoride (GF) and Graphane (GH) at both zero and finite temperature. The purpose of the study of 4He on GF (GH) was the research of new physical phenomena, whereas in the case of 2d-3He it was the a

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Martins, Carlo de Oliveira. "Análise proteômica diferencial em válvula mitral na doença reumática cardíaca." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/5/5146/tde-02082013-142739/.

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A Doença Reumática Cardíaca (DRC) é uma séria complicação de orofaringite causada por determinados sorotipos de Streptococcus pyogenes não tratada adequadamente em indivíduos suscetíveis. É um grande problema de saúde pública, principalmente nos países não desenvolvidos e em desenvolvimento, como Brasil, Índia, países da África, regiões de população aborígine da Austrália, e Egito. É altamente debilitante e com alta taxa de mortalidade devido ao comprometimento cardíaco. As lesões miocárdicas iniciais regridem, mas as lesões valvares, principalmente a mitral e a aórtica, são irreversíveis e pr

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MALAGO', Perla. "Spin dynamics in two-dimensional magnonic crystals." Doctoral thesis, Università degli studi di Ferrara, 2016. http://hdl.handle.net/11392/2403466.

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Negli ultimi anni i sistemi magnetici di dimensioni nanometriche sono stati ampiamente studiati sia per le loro proprietà fondamentali che per le molte e potenti applicazioni tecnologiche in cui possono essere inseriti. Tra tutti i sistemi magnetici aventi dimensioni nanometriche, i cristalli magnonici sono quelli che mostrano proprietà molto interessanti poiché possiedono la caratteristiche di poter esser costruiti in una, due o tre dimensioni. Lo scopo di questa Tesi consiste nello studio delle proprietà fondamentali della magnetizzazione in cristalli magnonici mono e multi-materiale. L’anal

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Colangelo, Francesco. "Strain engineering of two-dimensional materials." Doctoral thesis, Scuola Normale Superiore, 2019. http://hdl.handle.net/11384/85909.

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Graphene displays a range of remarkable properties that have catalyzed an impressive interest in the scientific community . Its unique electronic behavior stems from the hexagonal honeycomb structure of the one-atom thick carbon lattice, which forces low-energy conducting electrons to assume linear dispersions mimicking the one of massless relativistic fermions . After graphene, the past few years have been marked by the discovery and characterization of plenty of other two-dimensional (2D) materials and most of them share with graphene the hexagonal atomic network and have as many p

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Sasse, Hugh Granville. "Enhancing numerical modelling efficiency for electromagnetic simulation of physical layer components." Thesis, De Montfort University, 2010. http://hdl.handle.net/2086/4406.

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The purpose of this thesis is to present solutions to overcome several key difficulties that limit the application of numerical modelling in communication cable design and analysis. In particular, specific limiting factors are that simulations are time consuming, and the process of comparison requires skill and is poorly defined and understood. When much of the process of design consists of optimisation of performance within a well defined domain, the use of artificial intelligence techniques may reduce or remove the need for human interaction in the design process. The automation of human pro

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Pezo, Lopez Armando Arquimedes. "Electronic structure of two dimensional systems with spin-orbit interaction /." São Paulo, 2016. http://hdl.handle.net/11449/151633.

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Orientador: Alexandre Reily Rocha<br>Banca: Marcelo Takeshi Yamashita<br>Banca: Cedric Rocha Leão<br>Resumo: A realização experimental do grafeno em 2004 abriu as portas para os estudos de uma nova geração de materiais, estes chamados materiais bidimensionais são a expressão final do que poderíamos pensar em material plano (monocamada) que, eventualmente, podem ser empilhados para formar o bulk. O grafeno oferece uma grande variedade de propriedades físicas, em grande parte, como o resultado da dimensionalidade de sua estrutura, e pelas mesmas razões, materiais como Fosforeno (P), Siliceno (S)

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TORRE, IACOPO. "Hydrodynamics and plasmonics in two-dimensional materials." Doctoral thesis, Scuola Normale Superiore, 2018. http://hdl.handle.net/11384/85904.

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This Thesis is devoted to the study of two different aspects of electron behavior in two-dimensional materials, namely hydrodynamic electron transport and plasmon propagation. The Thesis is structured as follows. In Chapter 1 the main experimental facts that motivated our work on electron hydrodynamics and plasmonics are presented and critically discussed. Chapter 2 contains our main results on hydrodynamic electron transport. After deriving the basic equations of the electron hydrodynamics and discussing their limit of applicability, we use them to quantify the impact of two different tr

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Piccotti, Diego. "Two-Dimensional Nanostructure Arrays for Plasmonic Nanolasers." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3423324.

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The interest for plasmonic nanolasers has been growing in the last ten years, since they are one of the most promising ways to reach the miniaturization of lasers. In fact, these devices could break the limit of physical confinement of light thanks to the virtual cavity given by plasmonic nanostructures which substitutes the current macroscopic optical cavities. These plasmonic devices can also support high speed operation mode, low lasing threshold and a narrow directional emission. For this reason, during this project, we focused on the design, the synthesis and the characterization of

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Шевлюга, Олена Геннадіївна, Елена Геннадьевна Шевлюга та Olena Hennadiivna Shevliuha. "Організаційно-економічні засади управління техніко-технологічним розвитком машинобудівного підприємства". Thesis, Вид-во СумДУ, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42628.

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Дисертація присвячена розвитку організаційно-економічних засад управління техніко-технологічним розвитком машинобудівного підприємства. У дисертації сформульовано визначення поняття «техніко-технологічний розвиток підприємства». Обґрунтовано методичний підхід до визначення техніко-технологічного рівня підприємства. Розроблено і науково обґрунтовано засади удосконалення системи управління техніко-технологічним розвитком. Запропоновано та обґрунтовано науково-методичний підхід до вибору управлінських рішень на основі визначення техніко-технологічного рівня. Розроблено методичний підхід до побуд

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FARAONE, GABRIELE. "Two-Dimensional Phosphorus: From the Synthesis Towards the Device Integration." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2021. http://hdl.handle.net/10281/304380.

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Gli allotropi bidimensionali (2D) del silicio e del fosforo sono stati i predecessori fra i materiali monoelementali 2D dopo il grafene. I vantaggi scientifici e tecnologici di questi materiali richiedono lo sviluppo di schemi di processo che possano garantire la loro effettiva integrazione in nuovi dispositivi per la nanoelettronica. In questo lavoro di tesi, sono stati investigati alcuni degli ostacoli ancora irrisolti lungo la strada per l’integrazione in dispositivo degli allotropi 2D del fosforo considerando specificatamente il caso delle fasi 2D α-P (corrispondente a un singolo strato di

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BANA, HARSH VARDHAN. "Growth of two-dimensional materials and Investigation of their structural and electronic properties." Doctoral thesis, Università degli Studi di Trieste, 2018. http://hdl.handle.net/11368/2917552.

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My research activities focused on the growth and characterisation of two-dimensional materials. Initially Physical Vapour Deposition (PVD) growth of single layer (SL) MoS2 on Au(111) was performed by dosing Mo in H2S atmosphere at room temperature followed by annealing (Temperature Programmed Growth (TPG)) and we studied the evolution of intermediate species during the transformation by measuring fast-XPS. Thereafter by careful tuning the growth parameters, we developed a new procedure that leads to the direct growth of high quality SL MoS2 by dosing Mo in H2S atmosphere at high temperature (H

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Cai, Yong. "Research on quality traceability system of traditional Chinese medicine based on two-dimensional code." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3690824.

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Perotto, Giovanni. "TWO DIMENSIONAL SELF ASSEMBLY OF NANOSPHERES, A VERSATILE METHOD FOR NANOFABRICATION." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3422011.

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Nanotechnology is one of the most innovative and multidisciplinary fields in modern research. Techniques to manipulate and control matter at the nanometric scale, giving the possibility to change the morphology and the physical and chemical properties are growing in number. At the nano scale, changing the morphology implies changing also the properties of matter: many properties are no longer intrinsic but they depend on the size, shape, and even on the environment. One of the most striking example is given by gold and silver colour when they are in the nanoparticle form. Gold, for example

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TRAVAGLIA, ELISABETTA. "Study of the growth and of the electronic and structural properties of two-dimensional materials." Doctoral thesis, Università degli Studi di Trieste, 2018. http://hdl.handle.net/11368/2919624.

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Negli ultimi dieci anni, dopo l'isolamento del grafene e lo studio delle sue eccezionali proprietà, la comunità scientifica ha rivolto la propria attenzione ai cristalli bidimensionali (2D), ed in particolare ai dicalcogenuri dei metalli di transizione (TMDCs). Sebbene molto sforzo sia stato profuso per portare la loro produzione su scala industriale e integrarli all'interno dei futuri dispositivi elettronici ed optoelettronici, un metodo che porti alla scalabilità di questi materiali è ancora una sfida. Questa tesi è focalizzata sul meccanismo di crescita dei TMDCs e studia gli aspetti legati

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Saleur, Hubert. "Phenomenes critiques bidimensionnels." Paris 6, 1987. http://www.theses.fr/1987PA066613.

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Etude theorique des divers aspects des phenomenes critiques bidimensionnels par des methodes essentiellement analytiques: transformation en modeles de champ libre, exploitation de la symetrie conforme. Determination des valeurs exactes d'exposants critiques, et des expressions des fonctions de partition et des fonctions de correlation. Test d'un certain nombre de resultats par des calculs de matrice de transfert ou des simulations de monte carlo

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MAINI, LUCA. "Metamaterials based on photonic quasicrystals: from superlensing to new photonic devices." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2010. http://hdl.handle.net/10281/18116.

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In this Ph.D thesis we verified that metamaterials based on photonic quasicrystals can have superlensing properties and that the same type of material, in a different configuration, is able to localize photons and thus suggests the possibility to build new photonic devices, namely optomechanical switches. We saw that a slab cut from a two dimensional 12-fold quasicrystalline tiling constitutes a metamaterial because of its effective refactive index that becomes negative in some frequency ranges. These regions of the spectrum where negative refraction and superlensing occurr can be fou

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Lima, Kellen Cristina Vilhena. "The use of Generalized Two-Dimensional FT-Raman Correlation Spectroscopy method to monitor the quality of automotive gasoline." Universidade Federal do CearÃ, 2005. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=115.

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Relata a utilizaÃÃo da espectroscopia FT-Raman combinada com CorrelaÃÃo 2D Generalizada como mÃtodo alternativo para a realizaÃÃo do controle de qualidade de Gasolinas automotivas diretamente nos postos de combustÃvel. Apresenta os procedimentos para identificar a adulteraÃÃo da Gasolina automotiva pela adiÃÃo irregular de Etanol, Metanol e compostos aromÃticos e parafÃnicos, atravÃs da anÃlise dos espectros Raman obtidos para os diferentes adulterantes separadamente, misturados Ã Gasolina A e misturados Ã Gasolina A e ao Etanol. Descreve os procedimentos de prÃ-tratamento sobre os espectros R

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Ruggeri, Michele. "Quantum Monte Carlo simulations of two dimensional 3He: low-density gas-liquid coexistence on substrates and iterative backflow wave functions for strongly correlated systems." Doctoral thesis, SISSA, 2015. http://hdl.handle.net/20.500.11767/4854.

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In this thesis we show results of Quantum Monte Carlo simulations for fluid 3He in the ground state. We studied 3He in a quasi two dimensional environment and we designed a new class of trial wave functions for strongly correlated fermions. 3He is a typical example of Fermi liquid, and is the focus of several theoretical and experimental studies; since two dimensional 3 He in the ground state is believed to be a homogeneous liquid up to freezing, two dimensional 3He is the ideal system to study the effects of correlation in a wide density range. In this thesis we have worked in two regimes: w

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Sousa, Gabriel Oliveira de. "ANÃIS E PONTOS QUÃNTICOS DE FÃSFORO NEGRO INVESTIGADOS POR MODELO CONTÃNUO." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17789.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>A possibilidade de se obter sistemas bidimensionais a partir de materiais com estrutura cristalina lamelar tem atraÃdo muitas pesquisas nesses materiais, pois as propriedades de poucas camadas diferem bastante dos seus respectivos bulks, o que abre uma gama de possibilidades em aplicaÃÃes tecnolÃgicas. O fÃsforo negro apresenta muitas propriedades interessantes, dentre elas, um gap de energia, que garante a construÃÃo de dispositivos eletrÃnicos (bem diferente do grafeno que Ã um semi metal sem gap). Esse gap pode ser ajustado au

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Portillo, Jiménez Canek. "Modelado y evaluación de prestaciones de redes de sensores inalámbricos heterogéneos con ciclo de trabajo síncrono." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/171275.

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[ES] Las redes de sensores inalámbricas (WSN) han experimentado un resurgimiento debido al desarrollo de la Internet de las Cosas (IoT). Una de las características de las aplicaciones de la IoT es la necesidad de hacer uso de dispositivos sensores y actuadores. En aplicaciones como automatización de edificios, de gestión energética, industriales o de salud, los nodos sensores que componen la WSN, transmiten información a un colector central o sink. La información es posteriormente procesada, analizada y utilizada para propósitos específicos. En cada una de estas aplicaciones, los dispositivos

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Yen, Tinju Tim. "Strings, two-dimensional gravity, and matrix models." Thesis, 1991. https://thesis.library.caltech.edu/6292/1/Yen_t_1991.pdf.

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Two-dimensional models of quantum gravity have been solved using matrix model techniques. Furthermore, these solutions have turned out to be encoded in integrable nonlinear PDEs belonging to the KdV hierarchy. This thesis presents a new KdV recursion relation, distinct from one found previously by Dijkgraaf and Witten, for a certain class of theories known as the two-matrix models. The two recursion relations together are used to relate arbitrary correlation functions containing a puncture operator P (at any genus) to the three basic correlators <PP>, <PQ>, and <QQ> by unique algebraic express

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SUN, BIN-ZHANG, and 孫彬彰. "T-matrix recursive algorithm for two dimensional scattering problems." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/62674999551053629755.

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Lin, Wen-Chung, and 林文忠. "Mechanical Behavior of Two-Dimensional Carbon Fiber Fabrics Reinforced Carbon Matrix Composites." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/23628570191910602440.

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碩士<br>大同工學院<br>材料工程學系<br>84<br>Phenolic resin reinforced with two-dimensional plain woven carbon fiber fabricswere used as starting materials for carbon/ carbon composites in this study.The phenolic composites were prepared using the vacuum bag hot pressing technique They were then carbonized to convert into carbon/carbon composites.The research can be divided into four parts:(1)carbonization of phenolic resins,(2)the effect of carbonization temperature on mechnical behavior of C/C composit

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SHI, BO-DANG, and 施伯康. "Matrix method analysis and two-dimensional theory of distributed feedback semiconductor lasers." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/37104629414542542812.

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Tian, Lian. "Analytical and finite element solutions for an elastic matrix with two-dimensional nanoscale inhomogeneities." Thesis, 2006. http://hdl.handle.net/2429/18383.

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A new frontier of research at the interface of material science and mechanics of solids has emerged with the current focus on the development of nanomaterials such as nanotubes, nanowires and nanoparticles. As the dimensions of a structure approach the nanoscale, its properties can be size-dependent. The classical continuum theory, however, does not admit an intrinsic size, and is not applicable to the analysis of nanoscale materials and structures. Mechanics of nanomaterials-based composites can be understood by incorporating the effects of surface and interfacial energy. A fundamental proble

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Hsieh, Cheng-Hung, and 謝承宏. "Fabrication of a New Two-Dimensional Butler Matrix Antenna Array for Tile-Based Beamforming." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/p82vz7.

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博士<br>國立中正大學<br>電機工程研究所<br>107<br>This dissertation purposed a new type two-dimensional Butler matrix antenna array for massive antenna array application. For massive antenna array, it is very important to extend the antenna elements simply and quickly. Therefore, the tile-based antenna array system had been purposed. The concept of the tile-base is to make the beamforming function system as a unit, and the outline of the beamforming function system is like a tile. Then, many tile-liked system units are quickly integrated to a mother board to achieve the functionality and requirement of a mass

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Mitra, Sreemanta. "Some Physical Properties of Two-Dimensional Metals, Graphene and Nanocomposites Prepared by Embedding them in an Insulating Matrix." Thesis, 2019. http://hdl.handle.net/10821/8306.

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The present dissertation deals with the synthesis, characterizations and measurement of some physical properties of two-dimensional metals, graphene and nanocomposites prepared by embedding them in an insulating matrix. For the growth of two dimensional metals, the nanochannels of a clay mineral, Na-4 mica was used as template. For graphene based nanocomposites and functionalized graphene, chemical methods were used. The materials were characterized by different techniques, e.g. X-ray diffraction, transmission electron microscopy, atomic force microscopy. Mainly, electrical transport, dielectr

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FU, KUN-FU, and 傅坤福. "Analysis of cutoff frequencies of the dominant mode and first higher-order mode in fin lines by two-dimensional transmission line matrix method." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/08458086233788598351.

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