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Relevant bibliographies by topics / Liquid local structure

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Academic literature on the topic 'Liquid local structure'

Author: Grafiati

Published: 25 May 2024

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Journal articles on the topic "Liquid local structure"

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Godonoga, Maia, Alex Malins, Jens Eggers, and C. Patrick Royall. "Local structure of liquid–vapour interfaces." Molecular Physics 109, no. 7-10 (March 30, 2011): 1393–402. http://dx.doi.org/10.1080/00268976.2011.564217.

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Yang, Cheng, and Xin Zhou. "The multiple local structures in liquid water." International Journal of Modern Physics B 32, no. 18 (July 15, 2018): 1840003. http://dx.doi.org/10.1142/s0217979218400039.

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The debate over whether the structure of liquid water is homogeneous or mixed with a variety of structures has been going on for more than one century. With the discovery of different amorphous ices and advances in computer technology, mixture model is gaining more and more attention. In this paper, the latest progress in the experiment and simulation of the local structure of liquid water is introduced firstly. Secondly, the principal component analysis is used to study the water’s Raman spectra and tetrahedral-order distributions. We find that both the spectra and distributions can be obtained by linear superposition of two basic functions, which correspond to the existence of two local structures in liquid water. Finally, we introduce the development of using the binary regular solution theory to explain some thermodynamic properties of liquid water.

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Kirian, I. M., A. D. Rud, O. S. Roik, V. P. Kazimirov, O. M. Yakovenko, and A. M. Lakhnik. "Local atomic structure of liquid Al87Mg13 alloy." Journal of Non-Crystalline Solids 586 (June 2022): 121562. http://dx.doi.org/10.1016/j.jnoncrysol.2022.121562.

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Zhao, Xiaolin, Xiufang Bian, XinXin Li, KaiKai Song, Yanwen Bai, and YunFang Li. "Local structure of supercooled liquid Ga90In10 alloy." Chinese Journal of Physics 73 (October 2021): 74–80. http://dx.doi.org/10.1016/j.cjph.2021.05.023.

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Yoshioka, Shinya, Yukinobu Kawakita, Makoto Kanehira, and Shin'ichi Takeda. "Local Structure of Liquid IVb–Te Mixtures." Japanese Journal of Applied Physics 38, S1 (January 1, 1999): 468. http://dx.doi.org/10.7567/jjaps.38s1.468.

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Kawakita, Yukinobu, Shinya Yoshioka, Ikuo Hiraishi, Makoto Kanehira, and Sin'ichi Takeda. "Local Structure of Compound-Forming Liquid Alloys." Japanese Journal of Applied Physics 38, S1 (January 1, 1999): 472. http://dx.doi.org/10.7567/jjaps.38s1.472.

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Mitus, Antoni C., and Alexander Z. Patashinskii. "Study of local structure of “computer” liquid." Ferroelectrics 104, no. 1 (April 1990): 395–400. http://dx.doi.org/10.1080/00150199008223846.

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Hoshino, Hideoki, and Hirohisa Endo. "Local structure of liquid rubidium-selenium mixtures." Journal of Non-Crystalline Solids 117-118 (February 1990): 525–28. http://dx.doi.org/10.1016/0022-3093(90)90584-9.

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Yang Cheng and Zhou Xin. "Multiple types of local structure in liquid water." Acta Physica Sinica 65, no. 17 (2016): 176501. http://dx.doi.org/10.7498/aps.65.176501.

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Yang, Cheng, Chuanbiao Zhang, Fangfu Ye, and Xin Zhou. "Ultra-high-density local structure in liquid water." Chinese Physics B 28, no. 11 (October 2019): 116104. http://dx.doi.org/10.1088/1674-1056/ab4710.

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Dissertations / Theses on the topic "Liquid local structure"

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Täuber, Daniela, Katrin Radscheit, Rafael Camacho, Ivan Scheblykin, and Borczyskowski Christian von. "Guest molecule diffusion and conformation influenced by local liquid crystal structure." Diffusion fundamentals 20 (2013) 103, S. 1-2, 2013. https://ul.qucosa.de/id/qucosa%3A13692.

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Täuber, Daniela, Katrin Radscheit, Rafael Camacho, Ivan Scheblykin, and Borczyskowski Christian von. "Guest molecule diffusion and conformation influenced by local liquid crystal structure." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-183950.

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Klein, Holger. "Ordre local dans des phases quasicristallines, approximantes et liquides Al-Pd-Mn." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0138.

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Il existe, dans le systeme al-pd-mn, deux phases quasicristallines stables de structures icosaedrique et decagonale ainsi que deux familles de phases approximantes orthorhombiques. Par une etude de ce diagramme de phases nous avons precise les conditions de fabrication de monocristaux de phases approximantes ou quasicristallines. Les domaines d'equilibres entre les differentes phases solides et le liquide ont ete determines. Des structures atomiques de deux phases approximantes ont ete resolues par diffraction de rayons x sur monocristaux. Des clusters icosaedriques centres sur un mn definissent presque entierement leurs structures et jouent un role important dans la deformation plastique de ces phases. Cette derniere a lieu par migration de defauts lineaires qui ne sont pas des dislocations mais des defauts de phasons. La structure de liquides al-(pd)-mn en equilibre avec des phases icosaedrique ou approximantes a ete etudiee par diffusion de neutrons. Des simulations de facteurs de structure a partir de clusters icosaedriques montrent un bon accord avec les resultats experimentaux. Un modele de liquide de spheres dures n'est pas adapte dans ce cas. Les clusters utilises pour ces simulations sont les memes que ceux identifies dans les structures des phases icosaedrique et approximantes. Les distances interatomiques a l'interieur des clusters sont identiques a celles trouvees dans les phases solides. Les alliages al-(pd)-mn presentent une transition diamagnetique - paramagnetique lors de la fusion. La susceptibilite continue d'augmenter en fonction de la temperature dans le liquide. Des comparaisons de mesures de susceptibilite magnetique et de diffusion de neutrons sur differents alliages ont montre que dans le liquide une partie des mn portent un spin. Une interpretation de la correlation entre ordre local icosaedrique et magnetisme est proposee.

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Zhao, Bin. "Physical properties of Fe-C-S and Fe-S alloys under planetary core condition." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS542.

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Les planètes terrestres possèdent un noyau métallique composé d'alliages de fer, qui sont les produits d'une différenciation à longue période. La Lune est le corps planétaire terrestre le plus proche de la Terre, et aussi le mieux contraint grâce aux nombreuses missions spatiales comprenant des objets atterrissants et des engins spatiaux en orbite. Les observables collectés permettent aux gens de construire des modèles lunaires et d'en déduire les propriétés de base. En ce qui concerne sa composition, le soufre et le carbone sont considérés comme deux éléments légers plausibles dans le noyau de la Lune, mais la plupart des cas ont été discutés en termes de binaire Fe-S ou Fe-C, en l'absence de connaissance des propriétés de l'alliage Fe-C-S. Cette étude a fourni une discussion d'un point de vue Ternaire-Fe-C-S, basée sur les propriétés physiques des alliages liquides Fe-C-S déterminées expérimentalement. Plus précisément, la structure locale et la densité des alliages Fe-C-S liquides ont été étudiées par des expériences de diffraction et d'absorption des rayons X in situ en dessous de 5 GPa et entre 1600 K et 1900 K. La miscibilité des alliages Fe-C-S a été étudiée par des expériences de trempe entre 2 et 6 GPa à 1650 K et 2000 K, respectivement. La densité mesurée a été utilisée pour construire un modèle thermodynamique pour la densité des alliages Fe-C-S liquides en fonction de la pression, de la température et de la teneur en C/S. Ce modèle, ainsi que l'écart de miscibilité, sont utilisés pour discuter de la teneur en éléments légers dans le noyau de la Lune. Par rapport aux missions lunaires, la mission pour les autres planètes du système solaire a commencé beaucoup plus tard avec des difficultés et des risques considérablement accrus, laissant ces corps planétaires terrestres plus éloignés de la Terre encore mal contraints. Par exemple, le vaisseau spatial Galileo, qui est la première mission de Jupiter effectuée dans les années 1990, a collecté les données gravitationnelles des quatre satellites de Jupiter, parmi lesquels Europa, Io et Ganymède sont considérés comme hautement différenciés. Sans plus d'informations, le noyau a été considéré comme composé de Fe-S. Fe3S2 est un candidat potentiel se formant dans des conditions P-T pertinentes, mais sa structure, ses paramètres de réseau et ses conditions de formation précises restent inconnus. Pour cette partie de la thèse, les propriétés des composés Fe-S ont été étudiées par diffraction des rayons X in situ de 11 à 15 GPa et de la température ambiante à la fusion. La condition de formation précise de Fe3S2 et ses propriétés structurelles ont été déterminées par le diagramme de diffraction, qui permet de déduire la composition du noyau des corps planétaires de taille moyenne
Terrestrial planets possess a metallic core composed of iron alloys, which are the products of long-period differentiation. The Moon is the closest terrestrial planetary body to the Earth, and also most well-constrained thanks to the numerous space missions including landing objects and orbiting spacecrafts. The collected observables allow people to build Moon models and infer the core properties. Regarding its composition, sulfur and carbon are considered as two plausible light elements in the Moon’s core, but most of the cases were discussed in terms of binary Fe-S or Fe-C, in absence of the knowledge of Fe-C-S alloy’s properties. This study has provided a discussion from a Ternary-Fe-C-S point of view, based on the physical properties of liquid Fe-C-S alloys determined experimentally. Specifically, local structure and density of liquid Fe-C-S alloys were studied by in situ X-ray diffraction and absorption experiments below 5 GPa and between 1600 K and 1900 K. Miscibility of Fe-C-S alloys was studied by quench experiments between 2 and 6 GPa at 1650 K and 2000 K, respectively. The measured density was employed to build a thermodynamic model for density of liquid Fe-C-S alloys as a function of pressure, temperature, and C/S content. This model, together with the miscibility gap, are used to discuss the light element content in the Moon’s core. Compared to the lunar missions, the others started much later with considerably increased difficulties and risks, leaving those terrestrial planetary bodies farther to the Earth still poorly constrained. For instance, the Galileo space craft, which is the first Jupiter mission performed in 1990S, collected the gravitational data of the four satellites of Jupiter, among which Europa, Io, and Ganymede are considered highly differentiated. Without further information, the core was considered to be composed of Fe-S. Fe3S2 is a potential candidate forming at pertinent P-T conditions, but its structure, lattice parameters, accurate forming condition remains unknown. For this part of the PhD work, the properties of Fe-S compounds were studied by in situ X-ray diffraction from 11 to 15 GPa and from room temperature to melting. The accurate forming condition of Fe3S2 and its structural properties were determined by the diffraction pattern, which enables the inference on the core composition of middle-sized planetary bodies

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Simonet, Virginie. "Magnetisme et ordre local des quasicristaux et liquides al-pd-mn et al-mn." Paris 11, 1998. http://www.theses.fr/1998PA112259.

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Afin de comprendre les proprietes magnetiques des quasicristaux d'al-pd-mn et d'al-mn, nous avons etudie une phase cristalline approximante. Des experiences de rmn ont montre que son magnetisme est intrinseque et que seule une fraction des atomes de mn est magnetique. Des mesures de susceptibilite magnetique ont pu etre interpretees dans le cadre de la theorie de kondo et ont permis de chiffrer la faible fraction d'atomes de mn magnetiques. Une identification du site magnetique a ete proposee. Ces resultats ont ete generalises aux quasicristaux d'al-mn et d'al-pd-mn et ont ete confrontes avec succes a des travaux theoriques. Nous avons egalement utilise la rmn pour sonder les proprietes electroniques des quasicristaux d'al-pd-re et d'al-cu-fe et pour tester en particulier la presence d'un pseudogap electronique au niveau de fermi. Nous avons par ailleurs etudie le magnetisme et la structure des liquides d'al-pd-mn et d'al-mn, precurseurs de phases quasicristallines, par diffusion neutronique et par des mesures de suceptibilite magnetique. Differents resultats sont en faveur de la presence d'un ordre local icosaedrique dans les liquides, proche de celui des phases solides : similarite des facteurs de structure des solides et des liquides ; bon accord entre les facteurs de structure experimentaux a grand vecteur de diffusion et des modeles de liquides contenant des agregats icosaedriques ; l'analyse des fonctions de distribution de paires partielles des alliages d'al-(mn-cr). Le magnetisme de ces materiaux augmente fortement a la fusion et augmente regulierement dans le liquide avec la temperature. L'analyse quantitative de ces resultats montre que dans les liquides une fraction importante voire tous les mn portent un moment magnetique. Ces resultats surprenants sont discutes en relation avec l'evolution de l'ordre local.

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Cavalleri, Matteo. "Local Structure of Hydrogen-Bonded Liquids." Doctoral thesis, Stockholm : Fysikum, Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-286.

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Augier, Frédéric. "Structure locale du champ hydrodynamique dans les écoulements dispersés liquide-liquide concentrés." Toulouse, INPT, 2001. http://www.theses.fr/2001INPT009G.

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L'objectif de ce travail est de caractériser la structure du champ hydrodynamique dans deux écoulements dispersés liquide-liquide de type homogène et de zone de mélange, par les mesures locales, simultanées et instantanées des champs de vitesse des deux phases, de la fraction volumique et du diamètre des gouttes. Ces mesures sont menées pour des fractions volumiques de la phase dispersée pouvant atteindre 40%, à l'aide d'une technique originale adaptée de la Vélocimétrie par Images de Particules en milieu optiquement homogène, développée et validée dans le cadre de ce travail. Les phases continue (mélange eau-glycérol) et dispersée (heptane) sont localement différenciées par la présence dans la phase continue d'un traceur fluorescent (rhodamine 6G). La technique est d'abord appliquée à l'étude d'écoulements homogènes co-courants dans l'objectif de caractériser l'influence de la fraction volumique de la phase dispersée sur la force de traînée diphasique et sur la turbulence des deux phases. Les résultats expérimentaux sont comparés à des modèles existants et /ou à des données de la littérature. Des éléments intéressants concernant la structure instantanée du champ hydrodynamique sont mis en évidence. Dans un deuxième temps, des zones de mélange diphasiques présentant, soit un gradient de vitesse, soit un gradient de fraction volumique, font l'objet de mesures locales par la même technique. Dans le premier cas, on constate que, par rapport au cas monophasique, la présence de la phase dispersée conduit à une expansion plus rapide de la zone de mélange et à une sensible modification de la turbulence produite par le cisaillement. Dans le deuxième cas, l'écoulement est piloté par les variations à grande échelle de la densité du mélange. Enfin, des comparaisons avec des simulations numériques sont effectuées afin d'évaluer la capacité d'outils numériques actuels à prédire ces différents écoulements liquide-liquide.

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Ndao, Makha. "Propriétés physiques des cristaux liquides discotiques nanoconfinés." Phd thesis, Université Rennes 1, 2013. http://tel.archives-ouvertes.fr/tel-00979588.

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L'objectif de cette thèse est de mener une étude fondamentale et expérimentale des propriétés physiques des cristaux liquides discotiques colonnaires (CLDCs) confinés dans des matrices poreuses templates hautement ordonnées à l'échelle nanométrique. Les molécules des CLDCs de forme plane, composées de noyaux polyaromatiques rigides entourées de chaînes aliphatiques flexibles fonctionnalisables, sont susceptibles de s'auto-assembler dans des colonnes favorisant ainsi le recouvrement de leurs orbitales électroniques π. Ce qui fait de ces matériaux de véritables candidats pour des applications dans l'électronique moléculaire et la photovoltaïque grâce à la possibilité de migration des porteurs de charges le long de leurs colonnes. Cependant, ces applications nécessitent une bonne maîtrise des paramètres influant sur les mécanismes d'alignement dans les phases colonnaires, sur de grands monodomaines, et de préférence à température ambiante. Une méthode très prometteuse visant à optimiser les longueurs de diffusion des porteurs de charge a été récemment proposée, basée sur la formation de nanofils orientés de CLDCs par auto-assemblage dans des matrices dites " templates " (de moulage). Toutefois, les propriétés structurales, dynamiques et les effets de confinement sur ces technologies restent aujourd'hui mal connus et morcelés et pourraient constituer un véritable verrou scientifique pour leur réalisation. Notre étude s'est portée sur les CLDCs commerciaux (HPT) et le Py4CEH (moins connus) qui sont confinés dans des alumines poreuses (AAO) et du silicium poreux (Sip) de diamètres de pores de quelques dizaines de nm. Les diagrammes de phase ont été d'abord étudiés par DSC puis les effets structuraux ont été approfondis grâce à la diffusion de neutrons. Dans les géométries confinées, nous observons une dépression des températures de transition, un élargissement du domaine de stabilité de la phase colonnaire et l'ouverture d'une hystérèse amplifiée dans les pores de plus petite taille. Un ordre orientationnel très élevé a été trouvé dans les phases colonnaires bulk par la RMN du solide et la structure des systèmes confinés colonnaires, dominée par une distribution radiale avec un ancrage homéotrope a été déterminée. La dynamique moléculaire a été étudiée par diffusion quasiélastique de neutrons. Elle est affectée par le confinement : la dynamique de grande amplitude est fortement ralentie, tandis que la dynamique rapide locale devient régie par une distribution très large de temps caractéristiques.

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Constantin, Doru-Cosmin. "Défauts d'équilibrage des phases ordonnées et structure du liquide isotrope d'un mélange lyotrope de surfactant non-ionique." Lyon, École normale supérieure (sciences), 2002. http://www.theses.fr/2002ENSL0222.

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La première partie de ce travail a consisté en l'étude des effets prétransitionnels qui apparaissent en chauffant dans les phases ordonnées du mélange binaire lyotrope C12EO6/H20 à l'approche de la transition vers la phase isotrope. En employant une technique de photoblanchiment, nous avons déterminé les coefficients de diffusion de sondes fluorescentes en fonction de la température. Nous avons montré que des défauts structuraux connectant les agrégats de surfactant apparaissent dans les phases lamellaire et hexagonale et nous avons déterminé leur structure et leur densité. Nous en avons déduit que la phase isotrope est fortement connectée au voisinage des mésophases. Cette conclusion est confirmée par le fait que le coefficient de diffusion ne varie pas à la transition entre la phase isotrope et la phase cubique, elle-même fortement connectée. Nous avons ensuite exploré les propriétés dynamiques de la phase isotrope à haute concentration en combinant la diffusion dynamique de la lumière avec des expériences de rhéologie à haute fréquence. Nous avons mis en évidence un temps de relaxation terminale extrêmement court (de l'ordre de la microseconde) et avons expliqué ce comportement dans le cadre de théories déjà existantes sur la rhéologie des micelles connectées en incluant l'effet de l'ordre local.

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Marín, Aguilar Susana. "Local structure and dynamics of dense colloidal systems : from patchy particles to hard spheres." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP052.

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Le rôle de la structure dans la dynamique colloïdale vitreuse est encore un sujet de débat. Cependant, il existe des preuves d'un lien direct entre les changements de la dynamique et les propriétés structurelles du système. Nous explorons l'interaction de la structure et de la dynamique locales en utilisant des particules à patchs. Pour ce faire, nous utilisons des simulations de dynamique moléculaire. Nous montrons qu'en renforçant la géométrie icosaédrique, le dynamique du système présente un ralentissement extrême. Grâce à ces résultats, nous fournissons une voie pour contrôler la dynamique vitreuse par l'utilisation de particules à patchs. De plus, il est intéressant de savoir si nous pouvons extraire des informations sur la dynamique en utilisant uniquement des informations structurelles. Afin d'explorer ce point, nous simulons une grande variété de mélanges de sphères dures. Nous montrons que la dynamique globale de ces systèmes peut être prédite avec précision en introduisant un nouveau paramètre d'ordre appelé tétraédralité de la structure locale qui compte le nombre de tétraèdres auxquels chaque particule participe. Les prédictions de ce paramètre d'ordre restent valables pour dans une grande variété de densités, ce qui prouve son universalité dans cette famille de précurseurs de verre. De plus, il est également capable de saisir les changements sur la dynamique locale, car les régions à forte tétraédralité sont fortement corrélées avec les régions à dynamique lente. Enfin, nous explorons l'utilisation de techniques d'apprentissage machine non supervisé pour classer les particules ayant des environnements structurels différents
The role played by the structure in determining the dynamics of glassy colloidal systems is still a subject of debate. However, there is compelling evidence of a direct link between changes in the local structure and the dynamical slowdown in glassy systems. Here, we explore the interplay between local structure and dynamics by using patchy particles as glass formers. This is done by making use of molecular dynamics simulations. We show that reinforcing icosahedral geometry causes, the system to exhibit an extreme slowdown in its dynamics. With these results, we provide a route for controlling glassy dynamics through the use of patchy particles. Additionally, an interesting point is whether we can extract information about dynamics from only structural information. In order to explore this point, we simulate a wide variety of hard-sphere mixtures. We show that global dynamics of these systems can be precisely predicted by quantifying the tetrahedrality of the local structure: an order parameter that consists of counting the number of tetrahedra each particle participates in. The predictions of this order parameter maintain their accuracy over a wide variety of densities proving its universality in this family of glass formers. Moreover, it is also capable of capturing the changes in the local dynamics, as regions with high tetrahedrality are strongly correlated with regions with slow dynamics. Finally, we demonstrate that unsupervised machine learning techniques can be used to classify particles with different structural environments, which are strongly correlated to local dynamics

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Book chapters on the topic "Liquid local structure"

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Marekha, Bogdan A., Volodymyr Koverga, Nishith Maity, Akos Juhasz, François A. Miannay, Anton Inkol, Toshiyuki Takamuku, Pal Jedlovszky, Oleg N. Kalugin, and Abdenacer Idrissi. "Local Structure in Mixtures of Ionic Liquid with Molecular Solvent: Vibration Spectroscopy, NMR and Molecular Dynamics Simulation." In Molecular Basics of Liquids and Liquid-Based Materials, 289–334. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5395-7_10.

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Benfatto, M., C. R. Natoli, J. Garcia, A. Marcelli, A. Bianconi, and I. Davoli. "Local Order at the Manganese Sites in Ionic Solutions by XANES (X-ray absorption near edge structure)." In Amorphous and Liquid Materials, 142–45. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3505-1_11.

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Ge, Nien-Hui, Martin T. Zanni, and Robin M. Hochstrasser. "Local structure and dynamics of liquid acetone by heterodyned 2D IR spectroscopy." In Ultrafast Phenomena XIII, 592–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-59319-2_184.

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Di Bitonto, Maria Giovanna, Alara Kutlu, and Alessandra Zanelli. "Fog Water Harvesting Through Smart Façade for a Climate Resilient Built Environment." In The Urban Book Series, 725–34. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-29515-7_65.

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AbstractWater emergency is one of the terrible effects of climate change; it is defined as the Blue gold of twenty-first century. In this scenario, fog stands as a potential alternative water resource. Many territories are affected by fog phenomenon; here fog collectors have been developed to extract water from humid mass of air. The aim of this paper is to explore the application of this technology in building sector. The Large Fog Collector is the device commonly used for these projects; it is a textile structure, composed of a mesh, two poles and cables. The exploitation of conventional water resources implies a massive distribution system with significant energy consumption and costs. Otherwise, fog harvesting is a passive system; it relieves the stress upon freshwater resources. Nowadays, fog collectors are low tech devices, and fog harvesting projects are commonly developed in arid areas for agricultural and reforestation purposes. Nevertheless, taking advantage of the vertical development of the device, this textile structure shall be integrated in façade, to promote resilient constructions and make buildings water self-sufficient. The paper explores the design criteria for the development of a novel concept of smart water collecting façade. It can promote also shading effect, reducing the use of cooling system, energy demand, so lowering the ecological footprint. Depending on fog Liquid Water Content, the collected water can be used for the irrigation of green roofs, gardens or in an optimal scenario also for domestic use. The analysis of local weather data is crucial to extend the territories where this system can be applied; but, more important, the improvement of the device’s technology is essential to implement it in new application fields.

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Belyakov, Vladimir. "Localized Modes in Optics of Photonic Liquid Crystals with Local Anisotropy of Absorption." In Diffraction Optics of Complex-Structured Periodic Media, 217–34. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-43482-7_8.

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Veziroglu, Salih, Moritz Paulsen, Jan Schardt, Blessing Adejube, Cenk Aktas, Alexander Vahl, and Martina Gerken. "Photocatalytic Deposition for Metal Line Formation." In Springer Series on Bio- and Neurosystems, 241–63. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-36705-2_10.

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AbstractIn neural systems, plasticity can be found throughout a variety of scales, ranging from local synaptic plasticity between two neurons towards long-range connections and global plasticity within larger neuron assemblies. While memristive devices have attracted a lot of attention as a potential neuromorphic analog to represent local synapses and are regarded as promising building blocks for neuromorphic engineering, long-range connections and globally mediated aspects like homeoplasticity are not yet widely considered for neuromorphic systems. In this chapter, photocatalytic deposition is discussed as an approach to form metallic structures from a global liquid reservoir. In this context, the photocatalytic properties of TiO2 thin films are employed to reduce metallic species from the surrounding solution. This chapter will elucidate the fundamental process of photocatalytic deposition with photocatalytic TiO2 thin films and will showcase the applicability towards the formation of metallic structures at the example of arrangements of locally grown metallic Au structures.

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Harada, Makoto, Tetsuo Okada, and Iwao Watanabe. "Analysis of local structure of ion adsorbed on the gas/liquid interface." In Studies in Surface Science and Catalysis, 121–24. Elsevier, 2001. http://dx.doi.org/10.1016/s0167-2991(01)82049-8.

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Warner, M., and E. M. Terentjev. "Classical Elasticity." In Liquid Crystal Elastomers, 63–82. Oxford University PressOxford, 2003. http://dx.doi.org/10.1093/oso/9780198527671.003.0004.

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Abstract The deformation tensor λ has arisen naturally in the derivation of classical rubber elas-ticity. In the form given by eqn (3.20) it is appropriate for small and large strains alike, which is as well since rubber is capable for strains up to many hundreds of percent. Since the remainder of this book is concerned with elasticity of a new and unexpected form, with hitherto unsuspected phenomena to be summarised in the next chapter, we devote some space to reviewing the symmetry character of λ, from whence the effects will arise. We also examine the structure of non-linear elasticity and the connection with linear elasticity commonly used to describe solids at small strains. In contrast to classical elasticity, nematic rubber elasticity relies on the coupling of the rotations of internal degrees of freedom (the director n) to not only elastic strains but also body rotations. We thus illustrate the geometry of deformations and local rotations in order to prepare for this new type of elasticity. We note that incompressible distortions are all essentially shears; even the simple extensions and compressions of the rectangular block in Fig. 3.9 are shears, just viewed from a rotated coordinate frame. Deforma-tions, not in general symmetric or anti-symmetric, can be broken down into symmetric (pure shear) and rotational components. This will be useful in considering the mechano orientational responses and instabilities of nematic elastomers. Intimately related to this symmetric/anti-symmetric resolution of strains are the square roots of tensors. We dis-cuss them in this context, though principally to introduce them for the later treatment of soft elasticity. Finally, we discuss the (limited) role of compressibility in this elasticity.

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Ota, S., K. Asai, and S. Oya. "Solidification of Aluminum Alloy Weld Metal." In Encyclopedia of Aluminum and Its Alloys. Boca Raton: CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000438.

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The characteristics of the structure of solidified weld metal vary with its solidification process, which affects the occurrence of defects such as blowholes and solidification cracking. With respect to the solidification process during casting, a great deal of research has been carried out to control the process so that the solidification structure and its characteristics can be adjusted preferentially. This article describes the analytical results for the same two concerning the cooling behavior of the solid-liquid zone during the solidification process, the change in fraction of solid and local solidification rate.

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Chen, S. P., T. Egami, and V. Vitek. "TEMPERATURE DEPENDENCE OF THE LOCAL STRUCTURE IN TRANSITION FROM LIQUID TO GLASS: A MOLECULAR DYNAMICS STUDY." In Rapidly Quenched Metals, 577–80. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-86939-5.50139-1.

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Conference papers on the topic "Liquid local structure"

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Figueiredo Neto, Antônio M., Oscar R. Santos, Dennys Reis, Arnaldo G. Oliveira-Filho, and Cristiano L. P. Oliveira. "Structure and local order of lyotropic cholesteric calamitic phases: the effect of the chiral molecule (Conference Presentation)." In Liquid Crystals XXVI, edited by Iam Choon Khoo. SPIE, 2022. http://dx.doi.org/10.1117/12.2632245.

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Ge, Nien-Hui, and Robin M. Hochstrasser. "Local structure and dynamics of liquid acetone by heterodyned 2D IR spectroscopy." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2002. http://dx.doi.org/10.1364/up.2002.tue32.

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Kikugawa, Gota, Shu Takagi, Yoichiro Matsumoto, and Taku Ohara. "A Molecular Dynamics Study on the Local Structure of Liquid-Vapor Interface of Water and L-J Fluid." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32722.

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Microscopic structures of the liquid-vapor interface are investigated by molecular dynamics simulations. In previous studies, we proposed the local and instantaneous definition of the interface at the molecular level, which can capture the thermal fluctuation of the interface. By using this definition, the layering structure of water molecules at the interface is found, in other words, the structurization phenomena of water at the molecular level are clearly seen as usually found at the liquid-solid interface. In this study, we also investigated the liquid-vapor interface of Lenard-Jones fluid. Well depth of L-J potential parameter was somewhat changed and the effect on the structure was studied. Although the structurization was also found at the L-J fluid as well as water, characteristic of this structure is clearly different from that of water. We consider that the difference is ascribed to the intrinsic structure of liquid and associative trend of molecules. We also discussed the anisotropic character of the molecular diffusion at the interface. The anisotropy of the translational diffusion at the interface of water is stronger than that of the L-J fluid.

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Roy, Ramendra P. "On the Structure of Turbulent Bubbly Gas-Liquid Flows." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0762.

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Abstract To gain understanding of the structure of turbulent bubbly gas (or vapor)-liquid flows, local measurements have been carried out in the bubbly regime of isothermal gas-liquid flow and boiling flow. The isothermal flow was created by injecting nitrogen gas into an upward flow of liquid Refrigerant-113 through a vertical pipe. The boiling flow, of Refrigerant-113, was created in a vertical annular channel whose inner wall was heated. In both flows, the radial distributions of gas (or vapor) residence time fraction, bubble mean axial velocity, and bubble diameter were measured by a dual-sensor fiberoptic probe. In the liquid phase of the flows, the radial distributions of mean axial and radial velocities, axial and radial turbulent intensities, and axial Reynolds shear stress were measured by a two-component laser Doppler velocimeter (LDV). The radial distributions of bubble mean axial velocity and axial velocity fluctuation intensity were also measured by the LDV. Vapor and liquid temperature radial distributions in boiling flow were obtained by a fast-response microthermocouple. A multidimensional two-fluid model of turbulent bubbly gas (or vapor)-liquid flow is being developed at Electricité de France with contribution from our experimental and turbulence modeling work.

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Lee, Tae-Ho, Byong-Jo Yun, Goon-Cherl Park, Takashi Hibiki, and Seong-O. Kim. "Local Flow Structure of Subcooled Boiling Flow of Water in a Heated Annulus." In 16th International Conference on Nuclear Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/icone16-48170.

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Local measurements of flow parameters were performed for vertical upward subcooled boiling flows in an internally heated annulus. The annulus channel consisted of an inner heater rod with a diameter of 19.0 mm and an outer round tube with an inner diameter of 37.5 mm, and the hydraulic equivalent diameter was 18.5 mm. The double-sensor conductivity probe method was used for measuring the local void fraction, interfacial area concentration, bubble Sauter mean diameter and gas velocity, whereas the miniature Pitot tube was used for measuring the local liquid velocity. A total of 32 data sets were acquired consisting of various combinations of heat flux, 88.1–350.9 kW/m2, mass flux, 469.7–1061.4 kg/(m2s) and inlet liquid temperature, 83.8–100.5 °C. Six existing drift-flux models and six existing correlations of the interfacial area concentration were evaluated by the data obtained in the experiment.

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Rahman, Muhammad M., Cesar F. Hernandez, and Jorge C. Lallave. "Flow Structure and Heat Transfer During Free Liquid Jet Impingement on a Hemispherical Plate." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15406.

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The flow structure and convective heat transfer behavior of a free liquid jet impinging on a hemispherical solid plate of finite thickness have been examined using a numerical analysis. The simulation model included the entire fluid region (impinging jet and flow spreading out over the convex surface) and solid plate as a conjugate problem. Solution was done for both isothermal and constant heat flux boundary conditions at the inner surface of the hemispherical plate. Computations were done for jet Reynolds number (ReJ) ranging from 500 to 2000 and the dimensionless nozzle to target spacing ratio (β) from 0.75 to 3. Results are presented for local heat transfer coefficient and the local Nusselt number using the following working fluids: water (H2O), flouroinert (FC-77), and oil (MIL-7808) and for various solid materials namely aluminum, Constantan, copper, silicon, and silver. It was observed that plate materials with higher thermal conductivity maintained a more uniform temperature distribution at the solid-fluid interface. A higher Reynolds number increased the Nusselt number and local heat transfer coefficient distributions over the entire solid-fluid interface.

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Gradeck, Michel, and Michel Lebouche. "LOCAL STRUCTURE OF THE GAS-LIQUID FLOW IN HORIZONTAL CORRUGATED CHANNELS - FLOW PATTERNS AND WALL SHEAR STRESS." In International Symposium on Transient Convective Heat Transfer. New York: Begellhouse, 1996. http://dx.doi.org/10.1615/ichmt.1996.transientconvheattransf.390.

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Ruths, M., S. Lundgren, K. Persson, A. Hillerstro¨m, and K. Boschkova. "Tribological Properties of Associated Structures at Solid–Liquid Interfaces." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63225.

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We have studied the friction-modifying properties of associated amphiphile structures formed at solid–liquid interfaces from bulk solutions. The mechanisms of friction at the molecular level are only partially understood, but are expected to be strongly affected by the phase state of the confined thin film, i.e., by molecular structure and ordering, and also by interactions between confined molecules and the solid surfaces. In contrast to pre-applied lubricant films, self-assembling systems present the advantage of being self-healing, so that upon local fluctuations in pressure and wear, the film may spontaneously reform.

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Lallave, Jorge, and Muhammad M. Rahman. "Flow Structure and Heat Transfer During Free Liquid Jet Impingement Over a Rotating Disk." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82131.

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The aim of this computational study was to characterize the flow structure and convective heat transfer for a free liquid jet impinging on a rotating and uniformly heated solid wafer of finite thickness and radius. The main focus considered was the effect of cooling by adding a secondary rotational flow with jet impingement. The model covers the entire fluid region (impinging jet and flow spreading out over the rotating surface) and the solid disk as a conjugate problem. Calculations were done for various standard microelectronics materials, namely aluminum, copper, silver, Constantan, and silicon; at Reynolds number ranging from 445 to 1800, under a broad rotational rate range from 125 to 6000 rpm, and range of wafer thickness from 0.2 to 2 mm, respectively. The working fluids used for this simulation included water (H2O), ammonia (NH3), flouroinert (FC-77), and (MIL-7808) oil. In the present work only laminar liquid flow was considered for Ekman number range from 5.52 × 10−6 to 2.65 × 10−4. The nozzle to disk radius ratio (rd/dn) of 6.333 was kept constant for this study. Plate materials with higher thermal conductivity maintained a more uniform temperature distribution at the solid-fluid interface. Higher Reynolds numbers increased the Nusselt number and local heat transfer coefficient distributions reducing the wall to fluid temperature difference over the entire interface. In general, the rotational rate increases the local Nusselt number values over the entire solid-fluid interface. However, at high rate of rotation, the local Nusselt number decreases because the fluid tends to separate from the rotating disk surface. It was also found that wafer thickness beyond 1 mm did not change significantly the average solid-fluid dimensionless interface temperature and Nusselt number distributions.

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Gong, Jianguo, Sheng Zeng, and Tao Jin. "Effect of Hydrostatic Pressure on Buckling Behavior of Storage Tanks Under Local Support Settlement." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97964.

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In practical engineering, local settlement is a typical differential settlement under structures. It has drawn the attention of many researchers. This is because this kind of settlement has an important effect on tank structure. From research, the buckling behavior caused by local settlement has been reported. In most research, the local settlement is usually considered alone and the influence of hydrostatic pressure has not been reported. This work studies the effect of hydrostatic pressure on the buckling strength of conical roof tanks under local settlement. The results show that the pressure has a stiffening effect on buckling strength, preventing the shell from buckling. In addition, for small uplift half angles, buckling may not occur for liquid heights larger than the critical liquid height; while for large uplift half angles buckling may occur with full tanks. It is also shown that the critical local settlement for a small uplift half angle is more sensitive to the liquid height and hydrostatic pressure than the critical load for large uplift half angles. Finally, the relationship between the critical liquid height and uplift half angle is reported.

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Reports on the topic "Liquid local structure"

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Charles A. Eckert, Charles L. Liotta, and Rigoberto Hernandez. Gas-Expanded Liquids: Synergism of Experimental and Computational Determinations of Local Structure. Office of Scientific and Technical Information (OSTI), June 2007. http://dx.doi.org/10.2172/910459.

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Ross, M. The phase diagram of molybdenum at extreme conditions and the role of local liquid structures. Office of Scientific and Technical Information (OSTI), August 2008. http://dx.doi.org/10.2172/945533.

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