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Tesis sobre el tema "Ribbons"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Dorgan, Kelly A. "Black Ribbons." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/5391.

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Dorgan, Kelly A. "Black Ribbons." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/5394.

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3

Lee, Brent. "Ribbons of visible air." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0033/NQ38923.pdf.

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4

Wong, You Liang Lionel. "Piezoelectric Ribbons for Stretchable Energy Harvesting." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/718.

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As we enter the age of the internet of things (IoT), more embedded devices are appearing in our everyday items, such as electrical appliances, watches, mobile phones, and even clothes. These are devices that are able to communicate with one another and collect sensing data about their environment. An emerging area of interest in this field is the wearable devices, such as smart devices for healthcare and wellness implantables. These devices require power and batteries will need to be constantly recharged, adding to the users’ inconvenience. Energy harvesters are devices that are able to harnes

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5

Hossain, Chintan. "The crystal structure of cholesterol helical ribbons." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40897.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2007.<br>Includes bibliographical references (p. 49-50).<br>Helical ribbons form in a many multi-component solutions containing sterols similar to cholesterol, but remarkably, almost all the helices have a pitch angle of 11⁰ or 54⁰. The consistent pitch angle of the ribbons may be due to an underlying crystal structure. In order to determine the crystal structure, I undertook x-ray scattering studies of individual helical ribbons taken from two particular solutions: Chemically Defined Lipid Solution and model bile. Using a

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6

Brooks, Susan Cecile. "The Geometry and Topology of Wide Ribbons." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/4824.

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Intuitively, a ribbon is a topological and geometric surface that has a fixed width. In the 1960s and 1970s, Calugareanu, White, and Fuller each independently proved a relationship between the geometry and topology of thin ribbons. This result has been applied in mathematical biology when analyzing properties of DNA strands. Although ribbons of small width have been studied extensively, it appears as though little to no research has be completed regarding ribbons of large width. In general, suppose K is a smoothly embedded knot in R3.

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Zastavker, Yevgeniya Vladimirovna 1971. "Self-assembly of helical ribbons from chiral amphiphiles." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/54443.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001.<br>Includes bibliographical references (p. 209-220).<br>The study of the self-assembly of helical structures has been motivated by their newly found biological and technological importance. In many systems, helical ribbons are precursors to the formation of tubules, which may be used in the controlled release of drugs or as templates for micron scale electronic components. Used as springs, helical ribbons open up an entirely new avenue for the measurement of forces on the biological scale. Given the importance of t

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8

Spillane, Debra L. "Ribbon reign: 20 years of postmodern influence on a cultural phenomenon." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/489.

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Diverse sociology theoretical constructs serve as the lens to examine the evolution of two popular symbols of US culture in the last 20 years: yellow ribbons displayed as decoration and awareness ribbons worn as personal accoutrement. This research was motivated by society's weakened state of "collective consciousness," whereby shared beliefs and values have declined and some have completely disappeared, and sought to determine whether symbols will survive in a culture without commitment to the social. Invoking Christopher Lasch's Culture of Narcissism, Jean Baudrillard's Simulacra and Simula

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9

Premarathna, Sineth Madushan. "Single Molecule Investigations of Sexiphenyl on Graphene Nano-Ribbons." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1544128223705605.

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10

Chebbi, Brahim. "Manipulation of uniformly sheared turbulence using curvature and thin ribbons." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6522.

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A nearly homogeneous uniformly sheared turbulent flow was subjected to curvature in the same direction as the mean shear and then to curvature reversal. The adjustment of the turbulence structure to a change of the value of the curvature parameter, $S={{\overline{U}\sb{c}\over R\sb{c}}\over{\partial\overline {U}\over\partial\sb{n}}}$, is investigated. The structural parameter, $K\sb{uv}={\overline{uv}\over{q\sp2}}$, adjusts faster when the effects of curvature are stronger. For the small values of S obtained in the present investigation the adjustment of $K\sb{uv}$ depends on both the original

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11

Biswas, Sutapa. "Magnetism and Associated Exchange Bias Effects in Mn2Ni1+xGa1-x Heusler Alloys and Selected Fe Doped Derivatives." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1596051931485739.

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12

Albarrán, Arriagada Octavio Eduardo, and Arriagada Octavio Eduardo Albarrán. "Curling dynamics of naturally curved surfaces : axisymmetric bio-membranes and elastic ribbons." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2013. http://tel.archives-ouvertes.fr/tel-00997537.

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Curling deformation of thin elastic surfaces appears in numerous natural and man-made structures where a spontaneous curvature is present. In this thesis, we couple theoretical approaches and macroscopic experiments on elastic ribbons to understand the dynamics of curling of opened bio-membranes, motivated by the need to better understand recent microscopic observations during egress of Malaria infected red blood cells (MIRBC) and bursting of artificial polymersomes.In a first part, we study theoretically pore stability and curling propagation of an initially opened spherical bio-membrane. We

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13

Merritt, Laura. "The application of radiation curing to the production of security printing ribbons." Thesis, University of Kent, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244332.

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Cunha, M. A. da. "Structure and magnetic properties of Si-Fe ribbons produced by rapid solidification." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383371.

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Albarrán, Arriagada Octavio Eduardo. "Curling dynamics of naturally curved surfaces : axisymmetric bio-membranes and elastic ribbons." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20055/document.

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La déformation de matériaux élastique dont l'une au moins des dimensions est petite apparaît dans un grand nombre de structures naturelles ou artificielles pour lesquelles une courbure spontanée est présente. Dans ces travaux de thèse, nous couplons plusieurs approches théoriques à des expériences macroscopiques sur des rubans élastiques afin de comprendre la dynamique d'enroulement de biomembranes ouvertes d'un trou. La motivation est issue d'observations récentes d'enroulements obtenues au cours de la sortie de parasites de la Malaria de globules rouges infectés, et de l'explosion de vésicul

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16

Yong, Ee Hou. "Problems at the Nexus of Geometry and Soft Matter: Rings, Ribbons and Shells." Thesis, Harvard University, 2011. http://dissertations.umi.com/gsas.harvard:10311.

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There has been an increasing appreciation of the role in which elasticity plays in soft matter. The understanding of many shapes and conformations of complex systems during equilibrium or non-equilibrium processes, ranging from the macroscopic to the microscopic, can be explained to a large extend by the theory of elasticity. We are motivated by older studies on how topology and shape couple in different novel systems and in this thesis, we present novel systems and tools for gaining fundamental insights into the wonderful world of geometry and soft matter. We first look at how defects, topolo

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17

Aghamohammadzadeh, H. "'5'7Fe Moessbauer studies of Fe-Si based amorphous ferromagnetic ribbons and thin films." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310756.

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18

Buran, Bradley N. (Bradley Nicholas). "Precision and reliability of cochlear nerve response in mice lacking functional synaptic ribbons." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54454.

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Thesis (Ph. D.)--Harvard-MIT Division of Health Sciences and Technology, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 87-99).<br>Synaptic ribbons are electron-dense structures surrounded by vesicles and anchored to the presynaptic membrane of photoreceptors, retinal bipolar cells and hair cells. Ribbon synapses are characterized by sustained exocytosis that is graded with stimulus intensity and can achieve high release rates. Leading hypotheses implicate the ribbon in maintenance of a large readily releasable pool (RRP) of presynaptic vesicles which

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19

Wall, Alexander. "Characterisation of tablets and roller-compacted ribbons with terahertz time-domain pulsed imaging." Thesis, De Montfort University, 2015. http://hdl.handle.net/2086/11152.

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The pharmaceutical process of dry granulation using roller-compaction (DG/RC) is effectively a non-batch based procedure orientated to deliver a continuous stream of material free of a pre-defined batch-size with reduced plant equipment/scale-up R&D resources and an enhanced work-throughput, particularly suitable for moisture sensitive formulation. The desirable accreditations of DG/RC are many; yet by the nature of a more flexible approach than (i.e. wet-granulation), it must be highly monitored and controlled to accomplish higher-throughput rates and reduced ‘static’ material testing stages.

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20

Dressel, Jürgen. "Through-bond interaction of two mutually perpendicular [pi]-ribbons through a cyclobutane relay /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487324944214397.

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21

Lilley, Terry Glenn. "The collective display of war-related ribbons as symbolic participation Social patterns of engagement /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 136 p, 2007. http://proquest.umi.com/pqdweb?did=1400423521&sid=8&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Shephard, Arlesa J. "WOMEN’S INVOLVEMENT AND INTEREST IN WILLIAM McKINLEY’S POLTICIAL CAREER AS RECORDED IN QUILTS." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1152192333.

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23

Le, Nam B. "Structure-Interaction Effects In Novel Nanostructured Materials." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6296.

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Recent advances in experimental and computational methods have opened up new directions in graphene fundamental studies. In addition to understanding the basic properties of this material and its quasi-one dimensional structures, significant efforts are devoted to describing their long ranged dispersive interactions. Other two-dimensional materials, such as silicene, germanene, and transition metal dichalcogenides, are also being investigated aiming at finding complementary to graphene systems with other "wonder" properties. The focus of this work is to utilize first principles simulations met

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24

Dastjerdi, Roya, and V. Babaahmadi. "Boosting electrical conductivity of textiles via fabrication of silver nano-ribbons using the fiber templates." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/20634.

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This research has accomplished an exceptional achievement to synthesize metallic nano-ribbons. A simple and fast spray method has been used to fabrication the metallic ribbon-shape nanostructures on the cotton fabrics. In fact cotton fabrics can act as a good template directing the shape of nanostructures. The method to achieve this end has been reported and discussed. The SEM micrographs demonstrated the nano-ribbon fabrication. Evaluation the electrical conductivity disclosed that electrical resistance of fabrics containing the silver nano-ribbons has been decrease about 7640 times as compa

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25

Heptonstall, Alastair W. "Characterisation of mechanical loss in fused silica ribbons for use in gravitational wave detector suspensions." Thesis, Connect to e-thesis, 2004. http://theses.gla.ac.uk/1097/.

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Thesis (Ph.D.) -- University of Glasgow, 2004.<br>Ph.D. thesis submitted to the Department of Physics and Astronomy, University of Glasgow, 2004. Includes bibliographical references (p. 205-215). Print version also available.

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26

Pandey, Sudip. "EXPLORING THE STRUCTURAL, ELECTRONIC, AND MAGNETORESPONSIVE PROPERTIES OF NOVEL MAGNETIC MATERIALS IN BULK, RIBBONS, AND THIN FILMS." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/dissertations/1682.

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The structural, electronic, magnetic, magnetocaloric, and transport properties of doped Ni-Mn-(In, Sn) based Heusler alloys were studied using neutron diffraction, x-ray diffraction (XRD), differential scanning calorimetry (DSC), high field magnetization, specific heat, x-ray absorption spectroscopy (XAS), x-ray magnetic circular dichroism (XMCD), and hydrostatic pressure measurements. The adiabatic temperature change (∆Tad) by a direct method and through thermomagnetic measurements in magnetic fields up to 14 T has been performed for these alloys. Also the mixed effect of pressure and magneti

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27

Karimi, Hamed. "Structure factors of s=1/2 spin chains and magnetism at the edges of graphene ribbons." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50310.

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In this thesis we study two different one dimensional systems. The first project is on the transverse dynamical structure factors of the XXZ spin chain and the second project is on magnetism of zigzag edges of graphene nano-ribbons. In chapter 2, we apply field theory methods, first developed to study x-ray edge singularities, to interacting one-dimensional systems in order to include band curvature effects and study edge singularities at arbitrary momentum. We point out that spin chains with uniform Dzyaloshinskii-Moriya interactions provide an opportunity to test these theories since these

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28

Kaforey, Monica L. "Solid state thermal gradient processing of Y₁Ba₂Cu₃O₇âx/Ag superconducting composite ribbons." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/28038.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1994.<br>Vita. Title as it appears in the Feb. 1994 MIT Graduate List: Solid state temperature gradient processing of Y₁Ba₂Cu₃O₇âx/Ag superconducting composite ribbons.<br>Includes bibliographical references (leaves 197-202).<br>by Monical L. Kaforey.<br>Ph.D.

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29

Wocker, Lisa [Verfasser], and Frank [Akademischer Betreuer] Schmitz. "Immunologische Charakterisierung eines Epitops präsynaptischer Strukturspezialisierungen (sog. Synaptic Ribbons) der Photorezeptorensynapse / Lisa Wocker ; Betreuer: Frank Schmitz." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2017. http://d-nb.info/1141176041/34.

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30

Niemann, Anna Corinna [Verfasser], and Kornelius [Akademischer Betreuer] Nielsch. "Thermoelectric Transport Phenomena in Magnetic Nanowires and Topological Micro-Ribbons / Anna Corinna Niemann ; Betreuer: Kornelius Nielsch." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2020. http://d-nb.info/1215292457/34.

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31

Sadraei, Atieh. "Microfabrication and electrical characterization of lead-free sodium potassium niobate thin film ribbons on conformal substrates." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123646.

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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 40-41).<br>There have been recent concerns regarding the use, recycling, and disposal of the predominantly used leaded piezoelectric ceramic- Lead Zirconate Titanate (PZT). The European Union has initiated restricting the use of lead in commercial products, with countries such as China and Japan. These regulations provide further motivation for the development of an alternative t

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32

Perez-Gandarillas, Lucia. "Dry granulation process and compaction behavior of granulated powders." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2016. http://www.theses.fr/2016EMAC0021/document.

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Les solides divisés telles que les poudres pharmaceutiques nécessitent souvent des processus d'agrandissement de taille par agglomération pour améliorer leur comportement mécanique, notamment la coulabilité. Pour cette raison, le procédé de "granulation en voie sèche" est utilisé dans l'industrie pharmaceutique. Le procédé consiste à comprimer la poudre en la faisant passer entre deux rouleaux séparés par un entrefer, pour produire des plaquettes qui sont ensuite broyées en granulés et comprimés en compacts. Dans ce procédé, l'existence de différents modèles de compacteurs à rouleaux et de sys

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33

Neilson, Henry Jathuren. "Weibull Modulus of Hardness, Bend Strength, and Tensile Strength of Ni-Ta-Co-X Metallic Glass Ribbons." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1396008191.

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34

Alshammari, Ohud. "EFFECT OF ANNEALING ON THE MICROSTRUCTURE AND MAGNETIC PROPERITES OF SELECTED (Ni-Mn-Ga) MELT-SPUN RIBBONS." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1464184585.

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35

Schäfer, 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.

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Des matériaux ayant des propriétés émissives spécifiques peuvent être obtenus par l'organisation contrôlée de fluorophores aux échelles moléculaire, nano- et micro-métrique. Dans ce travail, l'émission de lumière bleue polarisée est obtenue par l'auto-assemblage hautement anisotrope de n-acènes alcoxylés en nano-rubans. Des techniques de microscopie de fluorescence ont été utilisées pour déterminer le mécanisme de leur croissance et ont été combinées à la cristallographie aux rayons X pour déterminer l'empilement moléculaire dans les nano-objets. L'étude a révélé que la formation des nano-ruba

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Devkota, Jagannath. "Enhanced Magnetoimpedance and Microwave Absorption Responses of Soft Ferromagnetic Materials for Biodetection and Energy Sensing." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5862.

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A combination of magnetic sensors with magnetic nanoparticles offers a promising approach for highly sensitive, simple, and rapid detection of cancer cells and biomolecules. The challenge facing the field of magnetic biosensing is the development of low-cost devices capable of superconducting quantum interference device (SQUID)-like field sensitivity at room temperature. In another area of interest, improving the sensitivity of existing electromagnetic field sensors for microwave energy sensing applications is an important and challenging task. In this dissertation, we have explored the excell

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liu, yinan, and 劉益男. "Ab Initio Studies of Graphite Ribbons." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/83228947369204773329.

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碩士<br>國立成功大學<br>物理學系<br>86<br>The physical properties of graphite and BN bulk,graphite and BN sheet,graphite and BN ribbons with armchair and zigzag edges are studied by abinitio pseudopotential LDA method.We have calculated the interlayer inte-raction energies of graphite and BN bulk and the 2Dhardness of graphiteand BN sheet.The band structures of both bulks and sheets of graphite andBN were also presented.Our results agree well with experiments and previoustheoretical studies.

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38

Morin, Matthew. "Caterpillars, ribbons, and the chromatic symmetric function." Thesis, 2005. http://hdl.handle.net/2429/17239.

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For every n-vertex tree T, it is known that the chromatic polynomial x(T, k) is equal to k(k — l )ⁿ⁻¹. It is known that the function in noncommuting variables, Y[sub G](x), distinguishes all simple graphs. In the midground, the question of whether or not the chromatic symmetric function X[sub G](x) distinguishes nonisomorphic trees is still open. We look at Stanley's expansion of X[sub G](x) in terms of the power sum symmetric basis {pλ(x)| λ|-n) of Λⁿ , and identify properties of our trees in various coefficients of the pλ in this expansion for X[sub G](x). By restricting to the case

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Peng, Sway, and 彭思偉. "Fe-based Glassy bulks and Thick Ribbons." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/39512867573654415035.

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Pó, José Mário da Costa 1986. "High quality silicon ribbons for solar cells." Doctoral thesis, 2017. http://hdl.handle.net/10451/30284.

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Wu, Shiao-Jing, and 吳曉菁. "Magnetoelectronic Structure of Finite-sized Nanographite Ribbons." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/91218094512878778912.

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碩士<br>國立成功大學<br>物理學系碩博士班<br>91<br>In this paper, Tight-binding model is used to study the electronic properties of finite sized nanographite ribbons. We calculate energy band , density of state, energy gap, degeneracy,and wavefunction and also discuss their variation under the effect of several factors geometrical structure,width&lenth , dangling bond ,via magnetic field. We found that physical properties of finite sized nanographite ribbons are mainly determined by the dangling bond. Under the effect of magnetic field , there are two kind symmetries : Φ→ -Φ, Φ→1-Φ and the third

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Wang, Shang-Pin, and 王上賓. "Magneto-elastic properties of some ferromagnetic ribbons." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/47167674419975844135.

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碩士<br>國立臺灣海洋大學<br>光電科學研究所<br>100<br>The magnetostrictive materials are potential for MEMS and device application, because of their capability to convert magnetic energy to mechanical energy. This thesis focuses on (Fe81-XCoXGa19)B20(X =0、7、11、19、23) arc discharge into ingots, spray into a thin strip of magnetostrictive, to X-ray diffraction (XRD) and vibration sample magnetometer (VSM), observed magnetic properties. VAC-6030 thin with heat treatment, to observe the magnetostrictive characteristics of vibrating sample magnetometer (VSM), the nature of the observed magnetic. Measured the

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43

Tsai, Sung-Yu, and 蔡松祐. "Fabricating Conductive Wavy Ribbons via Flow Coating." Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5159023%22.&searchmode=basic.

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碩士<br>國立中興大學<br>材料科學與工程學系所<br>107<br>Buckle structure is bilayer system that composed of the hard layer and soft substrate, which form obviously peak-valley profile when the system is stimulated by several environmental condition, such as thermal expansion, solvent swelling, or mechanical stretching etc. Recently, the buckle structure has the application in stretchable electronic because of it can provide a larger apply area and exhibit excellent mechanism behavior, such as “wavy ribbon”,which can be used as the connector for integrated circuit, that provide well conductive stability under app

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44

Gupta, Kishan Kumar. "Measuring Three-dimensional Deformations of Elastic Ribbons." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5586.

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Experimental techniques to measure and visualize kinematics in structural and solid mechanics range from humble strain gage rosettes to sophisticated digital image correlation methods. This thesis develops a stereo visionbased optical measurement technique and evaluates its efficacy for measuring three-dimensional elastic deformations of slender structures. Our motivation to develop the technique stems from the need to quantify/digitize the kinematics of slender elastic structures undergoing large displacements and rotations within the small strain regime. As devices composed of highly

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45

Kumar, Arun. "Studies on modeling the mechanics of slender elastic ribbons." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5689.

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Ribbons are slender structures characterized by three disparate geometric dimensions: length >> width >> thickness. Such a dimensional disparity enables ribbons to bend, buckle, twist and crease response to simple loading conditions. Their nonlinear deformation behavior, once considered a hindrance, is now routinely exploited in engineering applications related to stretchable electronics and flexible robotics. Such applications demand a systematic understanding of the mechanics of elastic ribbons using experiments, modeling, and simulations. This thesis is a step in this direction. Experime

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46

Chen, Yi Hsuan, and 陳宜玄. "Electronic Properties of Deformed AA - Stacked nanographite Ribbons." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/14826802295103193810.

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Lin, Heng-Ju, and 林恆如. "Magnetostriction of The Ferromagnetic Ribbons in AC Fields." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/04258097971456295749.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>101<br>This research main studied how the magnetostriction of ferromagnetic ribbons show in AC field. Then, the ribbons sustained the field annealed at 150 ℃、250 ℃、350 ℃ different temperature which the field was 50 Oe, and there magnetic properties will investigated by Vibration Sample magnetometer. In this study, we used two kind of the commercial ribbons, Metglas® 2605SA1、2826MB. By using Scanning Electron Microscope-Energy Dispersive Spectrometer we know the component ratio of Fe and Si were 10:1 in 2605SA1. The coercive force of the ribbons will slightly decrease

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Yeh, Chia-chun, and 葉佳錞. "The magnetocaloric effect of FeZr-based amorphous ribbons." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/31900824959960630706.

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碩士<br>國立中正大學<br>物理所<br>96<br>When a magnetic material is subjected to a sufficiently high magnetic field, the magnetic moments of the atoms become reoriented. If the magnetic field is applied adiabatically, the temperature of the material rises, and if the magnetic field is subsequently removed, the temperature decreases. This warming and cooling in response to the application and removal of an external magnetic field is called the Magnetocaloric effect (MCE). In this work, we focused on the soft magnetic amorphous alloys of the Fe-Zr system which have strong magnetocaloric effect under a fiel

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YANG, CHEN MIN, and 陳閔揚. "Electronic Collective Excitation in AB-stacked Nanographite Ribbons." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/29244763014316667087.

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碩士<br>國立成功大學<br>物理學系<br>90<br>The inter-π-band electronic excitations of AB-stacked nanographite ribbons are studied within the self-consistent-field approach. They directly reflect the characteristics of the π-electronic structure. They depend on the magnitude and the direction of the transferred momentum, the edge structure, and the stacking order. The loss function exhibits several peak structures. The pronounced peak, with frequency larger than 5 eV, is identified as the π-electronic collective excitations. The π plasmons exhibit the highly anisotroic behavior. They are almost absent, whil

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Serra, Filipe. "Multicrystalline Silicon Ribbons Grown Over a Dust Substrate." Doctoral thesis, 2020. http://hdl.handle.net/10451/49758.

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O Silício sobre Substrato de Pó (SDS da sigla em inglês) é um processo desenvolvido para fabricar fitas de silício multicristalino directamente a partir de uma fonte gasosa (silano), evitando as etapas industriais de deposição de poli-silício, crescimento de cristal e corte em bolachas. Este processo tem por objectivo alcançar um material com boa qualidade cristalográfica para o fabrico de células solares, aliado a uma expressiva redução do custo global dos sistemas fotovoltaicos. O foco do trabalho apresentado nesta tese é o aperfeiçoamento de toda a técnica SDS, a qual consiste em três pas

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