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Dissertations / Theses on the topic 'Soft Confinement'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Teeffelen, Sven van. "Active and passive soft matter: crystal growth, confinement, and swimming." Aachen Shaker, 2008. http://d-nb.info/992522447/04.

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2

Uspal, William Eric. "Collective hydrodynamics of soft microparticles in quasi-two-dimensional confinement." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91386.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2014.<br>120<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages [151]-156).<br>Flow of microparticles through geometrically confined spaces is a core element of most microfluidic technologies. Flowing particles are typically ordered and manipulated with external forces or coflowing streams, but these methods can be limited in generality and scalability. New techniques to control particle trajectories would enable new applications in such areas as materials assembly, optofluidics, a

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3

CamarÃo, Diego de Lucena. "Diffusive properties of soft condensed matter systems under external confinement." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13612.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Nesta tese estudamos a influÃncia de potenciais de confinamento externos nas propriedades dinÃmicas de sistemas de matÃria condensada mole. Analisamos as propriedades difusivas de dois sistemas especÃficos utilizando simulaÃÃes computacionais (DinÃmica Molecular de Langevin e DinÃmica Browniana). No CapÃtulo 1, introduzimos o tÃpico sobre matÃria condensada mole. Mostramos vÃrios aspectos teÃricos e experimentais neste tipo de sistema. Fazemos uma breve introduÃÃo ao tÃpico de difusÃo, onde discutimos os principais aspectos do movi

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4

Camarão, Diego de Lucena. "Diffusive properties of soft condensed matter systems under external confinement." reponame:Repositório Institucional da UFC, 2014. http://www.repositorio.ufc.br/handle/riufc/11285.

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CAMARÃO, Diego de Lucena. Diffusive properties of soft condensed matter systems under external confinement. 2014. 142 f. Tese (Doutorado em Física) - Programa de Pós-Graduação em Física, Departamento de Física, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2014.<br>Submitted by Edvander Pires (edvanderpires@gmail.com) on 2015-04-09T20:25:36Z No. of bitstreams: 1 2014_tese_dlcamarao.pdf: 4771668 bytes, checksum: 12d4989237a73eeafcc143c607fa30dd (MD5)<br>Approved for entry into archive by Edvander Pires(edvanderpires@gmail.com) on 2015-04-10T20:52:49Z (GMT) No. of bitstreams: 1 2

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5

Teeffelen, Sven van [Verfasser]. "Active and passive soft matter: crystal growth, confinement, and swimming / Sven van Teeffelen." Aachen : Shaker, 2009. http://d-nb.info/1162789883/34.

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6

Busch, Mark [Verfasser], and Patrick [Akademischer Betreuer] Huber. "Soft condensates in hard confinement : structure and molecular mobility / Mark Busch ; Betreuer: Patrick Huber." Hamburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2019. http://d-nb.info/1202990746/34.

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7

Skinner, Thomas Olof Edwin. "Two-dimensional colloidal systems : grain boundaries and confinement." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:e5407868-7c67-4252-9867-6955d9b71825.

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The behaviour of colloidal particles in two-dimensional (2D) systems is addressed in real space and time using magnetic fields, optical tweezers and optical video microscopy. First, the fluctuations of a grain boundary in a 2D colloidal crystal are analysed. A real space analogue of the capillary fluctuation method is derived and successfully employed to extract the key parameters that characterise the grain boundary. Good agreement is also found with a fluctuation-dissipation based method recently suggested in simulation. Following on from analysis of the interface fluctuations, the propertie

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8

Romanelli, Michele. "Study of high-impurity accumulation and transport in the JET tokamak plasmas from soft X-ray tomography." Thesis, Imperial College London, 1998. http://hdl.handle.net/10044/1/8677.

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9

Zanotti, Jean-Marc. "Confinement nanométrique de fluides moléculaires : des interactions de surface à des propriétés de transport à une dimension." Habilitation à diriger des recherches, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00715833.

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Le confinement nanométrique permet d'obtenir la frustration des fluctuations et/ou des transitions de phases spontanées qu'un fluide moléculaire présente en volume (i.e. en " bulk "). Le confinement au sein de matrices poreuses est donc une voie usuelle de stabilisation de phases métastables. Nous détaillons ici les propriétés structurales, dynamiques et thermodynamiques de deux systèmes moléculaires confinés : dans un premier chapitre, nous nous intéressons au cas de l'eau puis, dans un deuxième chapitre, nous traitons le cas spécifique d'un polymère semi-cristallin. Le confinement permet d'a

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10

Zhang, Zaicheng. "Nano-rheology at soft interfaces probed by atomic force microscope." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0157.

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Des progrès récents dans les études expérimentales et théoriques ont montré que l'écoulement d’un liquide à l'échelle micro/nano se comporte différemment de celui à l'échelle macroscopique. À l'échelle microscopique, les propriétés des surfaces sont prédominantes pour le comportement d'écoulement proche des parois. Pour un confinement élevé, non seulement les propriétés physico-chimie des parois sont importantes, mais leur comportement élastique doit également être pris en compte. Dans cette thèse, nous avons utilisé l'AFM dynamique à sonde colloïdal pour étudier l’écoulement confiné sur des s

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11

Huq, Abul Fatha Md Anisul. "Interfacial and Solvent Processing Control of Phenyl-C61-Butyric Acid Methyl Ester (PCBM) Incorporated Polymer Thin Films." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1427746818.

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12

Jardin, Axel. "Utilisation du rayonnement X-mou pour l'étude du transport des impuretés dans les plasmas de tokamaks." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0482/document.

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La consommation mondiale d'énergie a fortement augmenté durant le siècle dernier et va continuer de croître au cours des prochaines décennies. Le développement d'énergies durables et alternatives aux énergies fossiles constitue un enjeu crucial pour les générations futures. Dans ce contexte, la fusion thermonucléaire contrôlée serait un candidat de premier choix pour assurer la transition énergétique. Le tokamak, basé sur la fusion par confinement magnétique, est actuellement la solution la plus en vue pour contrôler la réaction de fusion et utiliser cette énergie à des fins civiles.Dans les p

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13

Mouillon, Alexandre. "Couples de spin-orbite dans une couche de métal ferromagnétique ultramince comprise entre deux oxydes : confinement quantique et effet Rashba." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAY034.

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Mis en évidence expérimentalement au début des années 2010, les couples de spin-orbite (SOTs) ont très rapidement suscité un très fort intérêt dans la communauté du magnétisme et de l'électronique de spin. En effet, ils permettent,dans un empilement de type métal lourd / métal ferromagnétique / oxyde (HM/FM/Ox), de manipuler l'aimantation de la couche ferromagnétique (FM) en injectant un courant dans le plan des couches. En remarquant que la bicouche FM/Ox correspond à la moitié d'un empilement typique utilisé dans les cellules mémoires de types MRAM (Magnetic Random Access Memory, mémoire mag

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14

Morel, Constance. "Etude de l'obtention par voie de fusion et solidification controlées des poudres de manganite de lanthane et de strontium pour application dans les couches de cathode de piles à combustible de type SOFC." Thesis, Orléans, 2010. http://www.theses.fr/2010ORLE2002/document.

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Nos travaux portent sur des manganites de lanthane et strontium (LSM), synthétisées par voie de fusion dans un four delévitation aérodynamique. Ce procédé, qui consiste à fondre des échantillons compactés sous impact laser, permetd’atteindre des températures très élevées (2500°C), tout en s’affranchissant des risques de pollution par le creuset. Lamicrostructure des produits obtenus a été caractérisée par DRX et observée au MEB. Leur composition chimique a étédéterminée par analyse EDS et leur stoechiométrie en oxygène, par ATG.L’étude a permis de définir les conditions nécessaires à l’obtenti

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15

Chi-Chun, Tsai, and 蔡奇均. "Crystallization Behavior of microphase-separated PS-PLLA lamellae:From hard confinement to soft confinement." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/36253289283863047708.

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碩士<br>國立中興大學<br>化學工程學系<br>90<br>Crystallization and Melting behavior of crystallizable block copolymer, polystyrene-b-poly(L-lactide) (PS-PLLA), were studied by differential scanning calorimetry (DSC). The PS-PLLA diblock copolymer was synthesized in term of living ring opening polymerization of PLLA following by living free radical polymerization of PS. As predicted by theoretical calculation, the order-disorder transition temperature (TODT) is fairly higher than crystallization temperature for PLLA block (Tc, PLLA) so as to generate strong segregation strength for microphase separation. In o

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16

Tasi-Ming, Chung, and 鍾才明. "Crystallization and Melting Behavior of Poly(L-lactide) under spherical microdomain confinement: From hard confinement to soft confinement." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/10756249263558922050.

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碩士<br>國立中興大學<br>化學工程學系<br>90<br>Abstract The competition between the crystallization of crystalline polymer, poly(L-lactide) (PLLA), and the microphase separation of block copolymer, polystyrene-b-poly(D,L-lactide) (PS-PLA), was investigated in this study. The morphological observation demonstrates that the block copolymer of PS-PLA self-assembles to form spherical microdomains. For PLLA/PS-PLA blends containing 30 wt % PLLA, the sphere size is around 30-35 nanometers as determined by TEM micrograph. The size of spheres increases with increasing the added amount of PLLA. When the ra

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17

Almahdali, Sarah. "Confinement on Soft Materials: Systems Synthesis and Application." Diss., 2017. http://hdl.handle.net/10754/625922.

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Isolating chemically-reactive sites into nanosized compartments is an important mode of control used by Nature to perform chemical transformations with extremely high yields and selectivity. Biological systems are fundamentally organized as bounded and isolated nano- and micro-sized environments featuring distinct localized properties, such as steric crowding, polarity, hydrophobicity, potential for molecular recognition, or pH. Through this compartmentalization, reaction substrates are sequestered away from interfering factors and competing substrates, or are physically prevented from forming

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18

Lin, Fang-Ho, and 林芳禾. "Crystallization Effects on the Morphology of PS-PLLA: from Hard Confinement to Soft Confinement." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/06510775298087311650.

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碩士<br>國立中興大學<br>化學工程學系<br>91<br>Abstract Crystallizable diblock copolymers, polystyrene-b-poly(L-lactide)) (PS- PLLA), have been synthesized by living free radical polymerization and ring opening polymerization in sequence. Microphase-separated lamellar morphology was identified by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS). The predicted order-disorder transition temperature (TODT) is relatively higher than crystallization temperature for PLLA block (TC,PLLA); crystallization of PLLA blocks thus carries out under strong segregated microdomains

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19

Spehr, Tinka Luise. "Water Dynamics In Soft Confinement - Neutron Scattering Investigations On Reverse Micelles." Phd thesis, 2010. http://tuprints.ulb.tu-darmstadt.de/2040/2/These_Tinka_genehmigt.pdf.

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In the present experimental study we investigate the dynamical behaviour of water in soft conﬁnement. As a model system we choose the AOT (sodium bis[ethylhexyl] sulfosuccinate) based water-in-oil droplet microemulsion which we precharacterize in detail. Using small angle neutron scattering we determine the microemulsion structure as a function of composition. Spherical water droplets (reverse micelles) coated by a monomolecular layer of the surfactant are dispersed in the continuous oil matrix. By variation of the molar ratio of water to surfactant one may control the droplet size between a f

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20

Hsu, Chen-Yu, and 徐誠佑. "Analysis Micelles Surface of Copolymer Under Soft Confinement With Spherical Harmonics Expansion." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/95361887950896952274.

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碩士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>100<br>We use self-consistent mean field theory to investigate changing Flory-Huggins parameter XBC and alternating block number(n) affect the structure under soft confinement by poor solvent, and analyze the micelles surface shape by spherical harmonics. In alternating block copolymer system, increase of XBC gives rise to one dimension ordered lamellar arrangement. The solvent will diffuse into the lamellar region to buffer repulsive force and cave in the surface. The second order spherical harmonics is sufficient to describe the surface shape when two blocks m

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21

Spehr, Tinka Luise [Verfasser]. "Water dynamics in soft confinement : neutron scattering investigations on reverse micelles / von Tinka Luise Spehr." 2010. http://d-nb.info/1000395774/34.

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22

Teeffelen, Sven van [Verfasser]. "Active and passive soft matter: crystal growth, confinement, and swimming / vorgelegt von Sven van Teeffelen." 2008. http://d-nb.info/991517946/34.

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23

Banerjee, Rajarshi. "Collective Behaviour of Confined Equilibrium And Non Equilibrium Soft Matter Systems." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2745.

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Due to their diversity, soft matter systems provide a convenient platform to study a variety of physical phenomena like phase transitions and collective motion. Encompassing a wide range of equilibrium and non-equilibrium systems, they often provide significant insight into the statistical mechanics of different kinds of many-body systems. Though large scale properties of such systems are of fundamental interest in their own accord, since most experimental realizations of soft matter systems are finite sized, there is a growing need to understand the effects of confinement or boundary conditio

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24

Hegde, Amarnath. "Ground Improvement using 3D-Cellular Confinement Systems : Experimental and Numerical Studies." Thesis, 2014. http://etd.iisc.ernet.in/handle/2005/2993.

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The various aspects of the 3D cellular confinement systems (geocells) subjected to static loading are comprehensively studied with the help of experimental and numerical studies. The performances of the geocells were separately studied in both sand and clay beds. Laboratory tests were performed on single as well as multiple cells. The behavior of 3D-cells made of different materials such as Novel polymeric alloy, geogrids and bamboo were compared. Moreover, the performances of the geocells were compared with other forms of geosynthetic reinforcements namely, geogrids and the combination of geo

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25

Benson, James. "A Study of the Structure and Dynamics of Smectic 8CB Under Mesoscale Confinement." Thesis, 2012. http://hdl.handle.net/10012/6919.

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The structure and dynamics of the smectic-A liquid crystal 8CB (4 cyano-4 octylbiphenyl) when sheared and confined to mesoscale gaps (with crossed cylindrical geometry and mica confining surfaces) were studied using a Surface Forces Apparatus (SFA). Triangular shear patterns with frequencies of 0.01, 0.1, 1.0 and 10 Hz, and amplitudes of 62.5 nm, 625 nm and 6.25 m were applied to samples at gap sizes of 0.5 and 5.0 m. The study was performed at room temperature (20.5C) and at two higher temperatures (22C and 27C). In order to minimize the thermal fluctuations within the test chamber

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