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Relevant bibliographies by topics / Atom sizes / Dissertations / Theses

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Dissertations / Theses on the topic 'Atom sizes'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Adiguzel, O. "Phase Transition and Functional Characteristics of Shape Memory Alloys." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35059.

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Shape-memory alloys are a new class of functional materials with a peculiar property known as shape memory effect. These alloys have an ability to recover a particular shape. The origin of this phenomenon lies in the fact that the material changes its internal crystalline structure with changing temperature. Copper based ternary alloys exhibit shape memory effect in metastable - phase field. These alloys undergo two ordered transitions on cooling, and bcc structures turn into B2(CsCl) or DO3(Fe3Al) -type ordered structures. The ordered structures martensitically undergo the non-convention

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2

Robinson, David John Robert. "Transitions in medium sized atoms." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359122.

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3

Aubailly, Simon. "From coarse-grained to atomistic molecular modeling : how structure and dynamics shape intra-molecular communication and functional sites in proteins." Thesis, Orléans, 2017. http://www.theses.fr/2017ORLE2002/document.

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Dans cette thèse, nous nous sommes intéressés à la relation subtile qui existe entre lesstructures complexes des protéines et leurs fonctions encore plus raffinées que ces dernièreseffectuent. Basés sur deux descriptions différentes des protéines, à l’échelle de acide-aminé età l’echelle atomique, un de nos objectifs était de connecter des indicateurs structuraux calculésà partir de la topologie des protéines à des sites fonctionnels tels que les sites catalyiquesdans les enzymes. Un autre pan de la recherche de cette thèse était d’utiliser nos outils baséssur la structure et de mettre au poin

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4

Silva, Talita Cristina da. "AtoM, normas e padrões para a descrição e representação de informações e objetos digitais em ambientes digitais Web /." Marília, 2017. http://hdl.handle.net/11449/151041.

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Orientador: Maria José Vicentini Jorente<br>Banca: Natália Bolfarini Tognoli<br>Banca: Rodrigo Eduardo Botelho Francisco<br>Resumo: Diante das transformações, das tecnologias e a mudança no comportamento dos internautas, os arquivos e profissionais da informação encontram-se com novos desafios, quanto à busca, a recuperação e o acesso à informação. Neste discutiu-se sobre os temas: descrição arquivística, normalização em arquivos, criação e implantação dos padrões e normas, com vistas à representação da informação; e o AtoM, como resultado destes esforços, que é um software de descrição Arquiv

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5

Alvinge, Björn. "Is Speed a Magnitude? : Neurocognitive Estimations of Speed and its’ Connection to Time, Space and Numeric/Quantity Estimations." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-156255.

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Associations between space, time, numbers and quantities have suggested that there must be a shared representational format which underlies them. One of the more prominent theories of an underlying system of representation is that of ATOM, which suggests that the there exists a generalized system of magnitude which processes these dimensions. However, there has been no study that examines whether speed is also processed within such a system. This study investigates this by seeing if a SNARC or Problem-Size effect arise in two speed estimation tests. The fundamental task for the participants in

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6

Košťák, Ondřej. "Kalibrace optických souřadnicových měřicích strojů GOM ATOS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318719.

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This master’s thesis contains the basic division of 3D methods which are used for reconstruction of measured objects. Furthermore the types of structured light patterns used for 3D triangulation. It also contains a description of the construction and functions of GOM ATOS and TRITOP machines. Primarily the thesis deals with the calibration of these machines, the design of suitable materials standard of size and the internal calibration methodology used by ŠKODA AUTO a.s. The text also includes verification of the proposed calibration procedure in practice, proposal for determination of calibra

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7

Rintelman, Jamie Marie. "Quantum Chemistry, and Eclectic Mix From Silicon Carbide to Size Consistency." 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, 2004. http://www.osti.gov/servlets/purl/835379-0CKsBH/webviewable/.

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19 Dec 2004.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "IS-T 1948" Jamie Marie Rintelman. 12/19/2004. Report is also available in paper and microfiche from NTIS.

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8

Malasi, Wilhelm S. "Synthesis and Complexation of Functionalized Mixed Thia-Aza-Macrocyclic and Medium Sized Ligands." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1239210466.

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9

Long, Wei. "Designing immobilized catalysts for chemical transformations: new platforms to tune the accessibility of active sites." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/49017.

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Chemical catalysts are divided into two traditional categories: homogeneous and heterogeneous catalysts. Although homogeneous (molecular) catalysts tend to have high activity and selectivity, their wide application is hampered by the difficulties in catalyst separation. In contrast, the vast majority of industrial scale catalysts are heterogeneous catalysts based on solid materials. Immobilized catalysts, combining the advantages of homogeneous and heterogeneous catalysts, have developed into an important field in catalysis research. This dissertation presents synthesis, characterization and e

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10

Bookjans, Eva M. "Relative number squeezing in a Spin-1 Bose-Einstein condensate." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37148.

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The quantum properties of matter waves, in particular quantum correlations and entanglement are an important frontier in atom optics with applications in quantum metrology and quantum information. In this thesis, we report the first observation of sub-Poissonian fluctuations in the magnetization of a spinor 87Rb condensate. The fluctuations in the magnetization are reduced up to 10 dB below the classical shot noise limit. This relative number squeezing is indicative of the predicted pair-correlations in a spinor condensate and lay the foundation for future experiments involving spin-squeezing

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11

Bull, James. "Application of Quantum Mechanics to Fundamental Interactions in Chemical Physics: Studies of Atom-Molecule and Ion-Molecule Interactions Under Single-Collision Conditions: Crossed Molecular Beams; Single-Crystal Mössbauer Spectroscopy: Microscopic Tensor Properties of ⁵⁷Fe Sites in Inorganic Ferrous High-Spin Compounds." Thesis, University of Canterbury. Department of Chemistry, 2010. http://hdl.handle.net/10092/4292.

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As part of this project and in preparation for future experimental studies of gas-phase ion-molecule reactions, extensive modification and characterization of the crossed molecular beam machine in the Department of Chemistry, University of Canterbury has been carried out. This instrument has been configured and some preliminary testing completed to enable the future study of gas-phase ion-molecule collisions of H⁺₃ and Y⁻ (Y = F, Cl, Br) with dipole-oriented CZ₃X (Z = H, F and X = F, Cl, Br). Theoretical calculations (ab initio and density functional theory) are reported on previously experime

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12

Hadjadj, Lakhdar. "Etude à la sonde atomique d'alliages à base titane." Rouen, 1988. http://www.theses.fr/1988ROUES014.

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Etude expérimentale dans les alliages Ti-3Cu, Ti-3Cu-5Al et Ti-10V-2Fe-3Al pour les alliages contenant du cuivre, analyse de la structure des zones de Guinier-Preston, et du rôle de l'aluminium sur la cinétique de précipitation en liaison avec le durcissement du matériau. Etude de l'évolution des phases oméga et alpha au cours des revenus pour l'alliage contenant du fer. Détermination à partir de cette étude, des structures des zones de Guinier-Preston et d'un mode de croissance pour la phase oméga. Analyse des avantages de la sonde atomique dus à sa haute résolution spatiale

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13

Bellamy, Bernard. "Agregats metalliques ni, pd, pt/sio::(2), al::(2)o::(3) : influence de la taille sur la structure electronique et la reactivite." Paris 6, 1987. http://www.theses.fr/1987PA066255.

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Preparation d'un modele de catalyseur par la technique des jets atomiques. Les echantillons ont ete prepares par condensation de la vapeur du metal (ni, pd, pt) sur un substrat plat, soit de silice amorphe, soit d'alumine amorphe. Etude du mecanisme de croissance et de la structure electronique des particules metalliques par rheed, spectrometrie auger et spectrometrie de photoelectrons. Mesure du taux de recouvrement absolu et de la distribution de taille

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14

Barry, Nicolas P. E., Anaïs Pitto-Barry, A. M. Sanchez, et al. "Fabrication of crystals from single metal atoms." 2014. http://hdl.handle.net/10454/11231.

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Yes<br>Metal nanocrystals offer new concepts for the design of nanodevices with a range of potential applications. Currently the formation of metal nanocrystals cannot be controlled at the level of individual atoms. Here we describe a new general method for the fabrication of multi-heteroatom-doped graphitic matrices decorated with very small, ångström-sized, three-dimensional (3D)-metal crystals of defined size. We irradiate boron-rich precious-metal-encapsulated self-spreading polymer micelles with electrons and produce, in real time, a doped graphitic support on which individual osmium atom

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15

Bhaskar, Srilakshmi P. "A Study on Digestive Ripening Mediated Size and Structure Control in Nanoparticles Prepared by Solvated Metal Atom Dispersion Method." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2924.

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Recent advancements in nanotechnology and emerging applications of nanomaterials in various fields have stimulated interest in fundamental scientific research dealing with the size and structure controlled synthesis of nanoparticles. The unique properties of nanoparticles are largely size dependent which could be tuned further by varying shape, structure, and surface properties, etc. The preparation of monodisperse nanoparticles is desirable for many applications due to better control over properties and higher performance compared to polydispersity nanoparticles. There are several methods for

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16

Bhaskar, Srilakshmi P. "A Study on Digestive Ripening Mediated Size and Structure Control in Nanoparticles Prepared by Solvated Metal Atom Dispersion Method." Thesis, 2016. http://hdl.handle.net/2005/2924.

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Recent advancements in nanotechnology and emerging applications of nanomaterials in various fields have stimulated interest in fundamental scientific research dealing with the size and structure controlled synthesis of nanoparticles. The unique properties of nanoparticles are largely size dependent which could be tuned further by varying shape, structure, and surface properties, etc. The preparation of monodisperse nanoparticles is desirable for many applications due to better control over properties and higher performance compared to polydispersity nanoparticles. There are several methods for

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17

Cheng-JungHsieh and 謝承蓉. "Silver Nanocubes with Various Sizes atop the Massed Silver Surface and its Application for Analyte Detection via Surface Enhanced Raman Scattering." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/20743845396229075263.

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碩士<br>國立成功大學<br>化學工程學系<br>103<br>In this research, we experimentally and computationally study surface enhanced Raman scattering (SERS) substrates with different size of silver nanocubes (AgNCs) for the detection different analytes. Silver nanocubes (AgNCs) with different sizes are successfully prepared by a facile the polyol process with ethylene glycol as a solvent and a reducing agent. Robust SERS substrates with enormous hotspots can be fabricated by assembling AgNCs on the silver surface via 1,2-ethanedithiol monolayer as the spacer. The SERS efficiencies are further evaluated by using Rh

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18

Po-JuTsai and 蔡博如. "The Size Effect of Silver Nanocubes atop the Massed Silver Surface on Surface Enhanced Raman Scattering." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/q2a993.

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碩士<br>國立成功大學<br>化學工程學系<br>102<br>This research describes theoretical and experimental evaluations of electromagnetic fields around metallic nanostructures, such as separated by nano-scale distances. Nanostructures having different sizes and shapes were evaluated. The localized surface plasmon resonance (LSPR) of a nanoplasmonic particle is often considered to occur at a single resonant wavelength. However, the physical measures of plasmon resonance, namely the far-field measures of scattering, absorption, and extinction, and the near-field measures of surface-average or maximum electric field

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19

Kučera, Michael. "Studium růstu 1-D struktur obsahujících atomy kovů III a IV skupiny pomocí STM." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-312503.

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In the presented work we study Al and Sn on a Si(100)2$\times$1 surface by means of STM. Peculiarities of displaying and morphology of metallic structures are investigated. Utilizing the STM to investigate Al and Sn, we obtain the growth characteristics for various coverage and temperatures at deposition. It is shown, that island size distribution is scalable for both metals and has a qualitatively different character. In order to interpret the growth characteristics and obtain unknown microscopic parameters, a new software tool for kinetic Monte Carlo (kMC) simulations of aluminum was conceiv

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20

Zhang, Qingwei. "New synthetic pathways to mono- and bis-dithiolene compounds of molybdenum and tungsten related to the active sites of the molybdopterin containing oxidases." Doctoral thesis, 2007. http://hdl.handle.net/11858/00-1735-0000-0006-AC98-D.

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21

Mokhonoana, Malose Peter. "The synthesis and study of some metal catalysts supported on modified MCM-41." Thesis, 2006. http://hdl.handle.net/10539/1853.

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PhD thesis - Faculty of Science<br>The main aim of this thesis has been to study the way in which Fe(III) and Co(II) incorporation into Si-MCM-41 synthesis gels affects the properties of the unmodified material. Another aim was to investigate the influence of these hetero-atoms on the dispersion and particle size distribution as well as the catalytic activity of supported Au nanoparticles in the CO oxidation reaction. Si-MCM-41 has been successfully synthesized in this work using mixtures containing CTAB as a structure-directing agent (SDA) and water-glass as a SiO2 source. Replacement

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