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Tesis sobre el tema "X-ray Raman scattering"

Autor: Grafiati

Publicado: 25 de mayo de 2024

Última modificación: 31 de julio de 2025

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1

Sun, Yu-Ping. "Spontaneous and stimulated X-ray Raman scattering." Doctoral thesis, KTH, Teoretisk kemi (stängd 20110512), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-32859.

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The present thesis is devoted to theoretical studies of resonant X-ray scattering and propagation of strong X-ray pulses. In the first part of the thesis the nuclear dynamics of different molecules is studied using resonant X-ray Raman and resonant Auger scattering techniques. We show that the shortening of the scattering duration by the detuning results in a purification of the Raman spectra from overtones and soft vibrational modes. The simulations are in a good agreement with measurements, performed at the MAX-II and the Swiss Light Source with vibrational resolution. We explain why the sca

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2

Minkov, Ivaylo. "Nuclear Dynamics in X-ray Absorption and Raman Scattering." Doctoral thesis, Stockholm : Theoretical Chemistry, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3902.

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3

Feng, Yejun. "Exciton spectroscopy using non-resonant x-ray Raman scattering /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/9642.

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4

Bassi, Andrea Li. "X-ray and light scattering from nanostructured thin films." Thesis, Durham University, 2000. http://etheses.dur.ac.uk/4631/.

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The object of this thesis is the study of nanostructured thin films using inelastic fight scattering and elastic x-ray scattering techniques. Their use in combination with other techniques is a powerful tool for the investigation of nanostructured materials. X-ray, Raman and Brillouin characterisation of cluster-assembled carbon films, promising for applications in the field of catalysis, hydrogen storage and field emission, is here presented. X-ray reflectivity (XRR) provided a measure of the density. Raman spectroscopy showed that the local bonding in these amorphous films depends on the siz

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5

Privalov, Timofei. "Electronic and nuclear dynamics of X-ray processes." Doctoral thesis, Stockholm : Tekniska högsk, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3189.

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6

Alić, Amina. "Femtosecond electron dynamics investigated by resonant x-ray scattering in strongly-correlated materials." Electronic Thesis or Diss., Sorbonne université, 2025. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2025SORUS039.pdf.

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Cette thèse explore la dynamique ultrarapide des électrons dans une sélection de matériaux fortement corrélés, connus pour leurs propriétés telles que la valence mixte ou la multiferroïcité. En étudiant ces systèmes à des échelles de temps très courtes (de l'ordre de la picoseconde ou moins), nous visons à démêler les degrés de liberté couplés des spins, charges, orbitales et réseaux cristallins. Nous avons étudié la dynamique des électrons dans TmSe, NiO et TbMnO3. Pour le cas de TmSe, il s'agit d'un système à valence mixte homogène. Nous avons démontré les possibilités et les limites de la d

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7

Alexandre, Thais Levatti. "Espectrometria de raios-X aliada a quimiometria no estudo de vegetais." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248802.

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Orientador: Maria Izabel Maretti Silveira Bueno<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-10T04:20:54Z (GMT). No. of bitstreams: 1 Alexandre_ThaisLevatti_D.pdf: 1122412 bytes, checksum: 5e4072c9674353ddc976abd8cb112ab2 (MD5) Previous issue date: 2006<br>Resumo: O uso da região de espalhamento na espectrometria de raios-X (XRS, do inglês, X-Ray Spectrometry) aliada à quimiometria é uma aplicação recente que tem mostrado bons resultados na discriminação de amostras orgânicas. Nesse trabalho, a proposta de se utilizar XR

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8

Delhommaye, Steven. "Single-particle modelling of X-ray Absorption and X-ray Raman Scattering spectra : from the impact of vibrations on multipole transition channels to the implementation of L2,3 edges." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS076.

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Ce travail de thèse porte sur les spectroscopies d’électrons de niveau de cœur ainsi que leur modélisation par la suite de code open source Quantum ESPRESSO. Il porte en particulier sur la Spectroscopie d’Absorption des rayons X (XAS), déjà bien établie, et la Spectroscopie Raman des rayons X (XRS), une alternative au XAS gagnant en popularité, par exemple dans le cas de mesures sous conditions extrêmes. Le premier objectif de cette thèse était l’étude de l’impact des vibrations thermiques des noyaux sur les contributions multipolaires en XAS et en XRS. En effet, le modèle QHA utilisé pour pre

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9

Fürsich, Katrin [Verfasser], and Bernhard [Akademischer Betreuer] Keimer. "X-ray and Raman scattering studies of novel phases in 3d and 4d transition metal oxides / Katrin Fürsich ; Betreuer: Bernhard Keimer." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/1223928926/34.

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10

Bizuti, Ariathemis Moreno. "Ordem local na transição a-Si:H - uc-Si." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278123.

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Orientador: Leandro Russovski Tessler<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin<br>Made available in DSpace on 2018-08-09T11:11:14Z (GMT). No. of bitstreams: 1 Bizuti_AriathemisMoreno_M.pdf: 8322758 bytes, checksum: 95ead73c1f59350e6aba71e4b5ca5ff4 (MD5) Previous issue date: 2005<br>Resumo: Silício amorfo hidrogenado (a-Si:H) é um material amplamente usado na indústria microeletrônica. Ele é normalmente preparado a partir da decomposição do silano (SiH4). A diluição do silano em hidrogênio (H2) resulta em a-Si:H com propriedades eletrôni

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11

Nyrow, Alexander [Verfasser], Metin [Akademischer Betreuer] Tolan, and Max [Gutachter] Wilke. "Iron containing compounds of the inner earth: X-ray Raman scattering from ambient to extreme conditions / Alexander Nyrow. Betreuer: Metin Tolan. Gutachter: Max Wilke." Dortmund : Universitätsbibliothek Dortmund, 2014. http://d-nb.info/1104947420/34.

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12

Al-Zein, Ali. "Order and Disorder of Relaxor and Ferroelectric Materials : structural and Vibrational Studies." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20078/document.

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Parmi les matériaux piézo-électriques, les pérovskites ferroélectriques à base de plomb sont connus pour avoir les meilleurs coefficients piézo-électriques et couplage électromécanique. Ils sont largement utilisés dans diverses applications industrielles et technologiques. Les "ferroélectrique relaxeurs" appartiennent à cette famille. Leur structure est caractérisée par la présence de nanorégions polaires orientées de façon aléatoire. Dans cette thèse, nous nous sommes intéressés à l'étude des propriétés structurales et dynamiques de matériaux ferroélectriques et relaxeurs tels que PbTiO3, PbZ

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13

Ziegler, Fabian. "Investigation of the Structure and Dynamics of Multiferroic Systems by Inelastic Neutron Scattering and Complementary Methods." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E5A6-5.

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14

Chaudemanche, Samuel. "Caractérisation in situ de l'endommagement volumique par Spectroscopie Raman et rayons X de différents polypropylènes déformés en traction uniaxiale." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0263/document.

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L'utilisation de matériaux polymères a su s'imposer au cours du 20ième siècle, en remplaçant ou se combinant aux matériaux métalliques, pour des applications mécaniques toujours plus techniques. La grande diversité des propriétés physiques des polymères est intimement lié à leur forte complexité microstructurale, qui malgré leur utilisation massive reste, au demeurant, encore très incomprise. Afin de mieux comprendre les évolutions microstructurales aux échelles nano et micrométrique dont résultent le comportement macroscopique il est nécessaire de développer de nouvelles techniques de caracté

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15

Genisel, Mustafa Fatih. "Synthesis Of Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn Sulfides By Solid-gas Reactions, Investigation Of Structural And Conducting Properties." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12606746/index.pdf.

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In this study some of the first row transition metal oxides were transformed to metal sulfides by new solid gas reaction system. Transition metal sulfides have wide application area in industry and technology. Several techniques are known for the production of metal sulfides. Such as reactions between metal or metal oxide with H2S, precipitation in several liquid medium, reaction between metal and sulfur in closed vessel, chemical vapor deposition (CVD) technique. These techniques will have some disadvantages<br>for example, reactants are rarely available or expensive materials, their product

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16

Atalay, Ramazan. "Optical and Structural Properties of Indium Nitride Epilayers Grown by High-Pressure Chemical Vapor Deposition and Vibrational Studies of ZGP Single Crystal." Digital Archive @ GSU, 2012. http://digitalarchive.gsu.edu/phy_astr_diss/60.

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The objective of this dissertation is to shed light on the physical properties of InN epilayers grown by High-Pressure Chemical Vapor Deposition (HPCVD) for optical device applications. Physical properties of HPCVD grown InN layers were investigated by X-ray diffraction, Raman scattering, infrared reflection spectroscopies, and atomic force microscopy. The dependencies of physical properties as well as surface morphologies of InN layers grown either directly on sapphire substrates or on GaN/sapphire templates on varied growth conditions were studied. The effect of crucial growth parameters suc

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17

Gorce, Jean-Philippe. "Crystallisation and chain conformation of long chain n-alkanes." Thesis, Sheffield Hallam University, 2000. http://shura.shu.ac.uk/19705/.

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Hydrocarbon chains are a basic component in a number of systems as diverse as biological membranes, phospholipids and polymers. A better understanding of the physical properties of n-alkane chains should provide a better understanding of these more complex systems. With this aim, vibrational spectroscopy has been extensively used. This technique, sensitive to molecular details, is the only one able to both identify and quantify conformational disorder present in paraffinic systems. To achieve this, methyl deformations have been widely used as "internal standards" for the normalisation of peak

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18

Combet, Jérôme. "Désordre moléculaire dans les composés d'inclusion du tano : une approche par diffusion des rayons X et diffusion quasi élastique incohérente des neutrons." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10185.

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Le nitroxide c#9h#1#6no#2 (tano) forme des composes d'inclusion a canaux avec une grande variete de chaines lineaires (alcanes, monobromo alcanes. . . ). Les molecules de tano (reseau hote) s'organisent de facon a creer des canaux dans lesquels les molecules viennent s'inserer. A temperature ambiante, les molecules de tano et les chaines invitees sont dynamiquement desordonnees. Les cliches de diffraction de rayons x revelent la presence de plans diffus, perpendiculaires a l'axe b, caracteristiques de la nature des molecules incluses et typiques de la diffusion par des chaines de molecules non

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19

Safoula, Gabriel. "Caracterisation des couches minces polycristallines de selenium dope par un halogene (cl, i) et etude des interfaces metal-selenium (m = cr, bi, te)." Nantes, 1988. http://www.theses.fr/1988NANT2018.

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L'effet du dopage a ete analyse par diffraction rx, microscopie electronique a balayage, spectrometrie de masse des ions secondaires, diffusion raman, emission photoelectronique rx, emission electronique auger. On effectue des mesures de conductivite electrique, d'effet hall et de pouvoir thermoelectrique en fonction de la temperature, de la concentration initiale en halogene et du vieillissement. On en deduit que, seule une fraction d'halogene, non uniformement reparti, a un role electriquement actif

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20

Zschintzsch-Dias, Manuel. "Self organized formation of Ge nanocrystals in multilayers." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-86838.

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The aim of this work is to create a process which allows the tailored growth of Ge nanocrystals for use in photovoltic applications. The multilayer systems used here provide a reliable method to control the Ge nanocrystal size after phase separation. In this thesis, the deposition of GeOx/SiO2 and Ge:SiOx~ 2/SiO2 multilayers via reactive dc magnetron sputtering and the self-ordered Ge nanocrystal formation within the GeOx and Ge:SiOx~ 2 sublayers during subsequent annealing is investigated. Mostly the focus of this work is on the determination of the proper deposition conditions for tuning the

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21

Nguyen, Thi Yen. "Polymorphism of Organic Molecular Crystals." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/18812.

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Die Kristallisation ist ein wichtiger Teilprozess bei der industriellen Herstellung vieler Materialien und Medikamente. Es ist jedoch ein vielschichtiger, physikalischer Vorgang, der noch nicht vollständig aufgeklärt ist. Der Schwerpunkt dieser Arbeit liegt auf der Kristallisation von organischen, polymorphen Verbindungen aus unterschiedlichen Lösungsmitteln. Die Kristallisationsstudien wurden in einem akustischen Levitator mit Klimakammer, der den Einfluss von Temperatur, Feuchtigkeit und festen Oberflächen steuert, durchgeführt. Verschiedene analytische in-situ-Methoden und deren Koppl

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22

Bright, Andrew G. "Mechanistic Insights into the Stabilisation of Biopharmaceuticals using Glycine Derivatives. The Effect of Glycine Derivatives on the Crystallisation, Physical Properties and Behaviour of Commonly used Excipients to Stabilise Antigens, Adjuvants and Proteins in the Solid State." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/15943.

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This dissertation has focused on studying the effect of four glycine derivatives on the solid state properties of mannitol, glycine, and sucrose when freeze dried into blended mixtures. The primary goal was to assess their value for use in the stabilisation of vaccines in the solid state, by examining key physical and chemical characteristics, which have been documented to be beneficial to the stabilisation of biopharmaceutical formulations. The novel excipients; dimethyl glycine, and trimethyl glycine, were shown to retard the crystallisation and increase the overall glass transition temperat

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23

Lachgar, Abdessadek. "Etude cristallographique et spectroscopique de quelques phases nouvelles du systeme k : :(2)o-sb::(2)o::(5)-p::(2)o::(5)." Nantes, 1987. http://www.theses.fr/1987NANT2015.

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Identification de cinq phases nouvelles. Determination de la structure pour chacune d'entre elles par diffraction rx sur monocristal. Les edifices covalents sont construits a partir d'octaedres sbo::(6) partageant des sommets ou des aretes, et de tetraedre po::(4) lies aux octaedres par deux, trois ou leurs quatre sommets. Caracterisation par absorption ir, diffusion raman et spectrometre rmn du **(31)p

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24

Silva, Alessandra dos Santos. "Estudo de propriedades físicas de nanocristais de ZnTe e Zn1-xAxTe (A = Mn; Co) no sistema vítreo P2O5 ZnO Al2O3 BaO PbO." Universidade Federal de Uberlândia, 2015. https://repositorio.ufu.br/handle/123456789/15620.

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Fundação de Amparo a Pesquisa do Estado de Minas Gerais<br>In this work, Zn1-xAxTe (A = Mn, Co) diluted magnetic semiconductors (DMS) nanocrystal (NCs) were successfully grown in the P2O5 ZnO Al2O3 BaO PbO glass system synthesized by the method of Fusion-Nucleation, after subjecting to appropriate thermal annealing. Various experimental techniques were used in this study in order to get a comprehensive understanding of the optical, morphological, structural and magnetic properties these NCs. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) images revealed the si

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25

Bianco, Leonardo Martín. "Estudio de procesos (1s, 2p3/2) y (1s 2p1/2) en el espectro Raman resonante de rayos x de alta resolución en Titanio." Bachelor's thesis, 2010. http://hdl.handle.net/11086/30.

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Tesis (Lic. en Física)--Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física, 2010.<br>En este trabajo se estudiaron los procesos de dispersión inelástica resonante de rayos x (RIXS) (1s,2p3/2) y (1s,2p1/2) en Ti. Este estudio se realizó con datos experimentales obtenidos con alta resolución en el Laboratorio Nacional de Luz de Sincrotrón (LNLS) ubicado en Campinas, Brasil. De estos procesos se estudió la evolución del FWHM (ancho total a media altura), la posición del máximo del espectro y la sección eficaz integrada, cuando la energía de incidencia se aproxima al bo

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26

Lin, Yuhsun, and 林佑勳. "Synthesis of Plasmonic Fluorescent Au-Ag Alloy Nanoparticles by Synchrotron X-ray Irradiation and Their Applications in Surface-Enhanced Raman Scattering and Photoluminescence." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/48010867400564043824.

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碩士<br>國立中正大學<br>物理學系暨研究所<br>99<br>In this thesis, Au-Ag alloy nanoparticles have been successfully synthesized via using extremely high intensity Synchrotron x-ray irradiation. Both UV-visible absorption and TEM results indicate that the nanoparticles are with uniform size about 2.2 nm～2.3 nm, and it can be tuned by changing the quantity of PVP. The surface-enhanced Raman scattering（SERS）spectra of Au-Ag alloy nanoparticles change with the Au-Ag composition ratio, which indicates the nanoparticles are highly crystalline of true alloy instead of core-shell structure. Photoluminescence（PL）meas

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27

Cheng, Hsiang-Wei, and 鄭翔瑋. "In Situ Raman Spectroscopic and Grazing Incidence Small Angle X-ray Scattering Studies of the Formation Mechanism of MCM-41 at the Air-Water Interface." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/47906383672903594468.

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碩士<br>東海大學<br>化學系<br>98<br>The major purpose of this study is use cationic surfactant（cetyltrimethylammonium brombide, C16TAB）as templated, by controlling Tetraethylorthosilicate（TEOS）concentration, acidity and temperature. We used in situ experiment study film formed phase transformation mechanism at the air-water interface. By using Raman spectroscopic to observe the hydrolysis reaction, and using Grazing incidence small angle x-ray scattering（GISAXS）in air-water interface and Small angle x-ray scattering（SAXS）in bulk solution to observe the phase transformation of C16TAB/TEOS film growth.

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28

Robledo, José Ignacio. "Avances en espectroscopía por dispersión inelástica resonante de rayos X en baja y alta resolución." Doctoral thesis, 2019. http://hdl.handle.net/11086/11285.

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Tesis (Doctor en Física)--Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación, 2018.<br>La presente tesis doctoral está centrada en el uso de la Dispersión Inelástica Resonante de Rayos X (RIXS) para la determinación del entorno químico de un átomo emisor a partir de espectros colectados mediante sistemas dispersivos en energía, los cuales pueden obtenerse en laboratorios de rayos X convencionales o en facilidades sincrotrón. En la primera parte de esta tesis se describe la técnica EDIXS (Energy Dispersive Inelastic X-Ray Scattering ) que desarrollamos en

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29

Walker, Andrew. "Relating the structure of insect silk proteins to function." Phd thesis, 2013. http://hdl.handle.net/1885/140997.

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Silks are extracorporeal fibrous protein materials. Classically, silkworm (Bombyx mori) and orb-spiders (Arachnida: Araneidae) have served as model organisms in which to investigate silk protein structure-function relationships. However, silk production has evolved multiple times in insects. The silk proteins of many insects do not fold into the beta-sheet structures found in silkworm and spider silks but into coiled-coils, collagen helices or polyglycine helices. Therefore, the structure-function relationships elucidated for silkworm and spider sil

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