Готові списки джерел за темами / Glass conservation

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Добірка наукової літератури з теми "Glass conservation"

Автор: Grafiati

Опубліковано: 1 квітня 2023

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Статті в журналах з теми "Glass conservation"

Henderson, Julian, Roy Newton, and Sandra Davison. "Conservation of Glass." Studies in Conservation 37, no. 1 (February 1992): 61. http://dx.doi.org/10.2307/1506438.

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Pimm, Stuart. "Conservation: Glass half full." Nature 531, no. 7593 (March 2016): 170–71. http://dx.doi.org/10.1038/531170a.

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Koob, Stephen P., and Sandra Davison. "Conservation and Restoration of Glass." Journal of the American Institute for Conservation 43, no. 3 (2004): 288. http://dx.doi.org/10.2307/4129645.

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Paterakis, Alice Boccia. "Conservation and Restoration of Glass." Studies in Conservation 50, no. 1 (January 2005): 76–77. http://dx.doi.org/10.1179/sic.2005.50.1.76.

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Arican, T. F., and Ö. Hortaçsu. "Energy conservation in glass manufacture." Energy 17, no. 6 (June 1992): 617–24. http://dx.doi.org/10.1016/0360-5442(92)90097-j.

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G. McLean, Ian. "Into the Looking Glass." Pacific Conservation Biology 13, no. 3 (2007): 147. http://dx.doi.org/10.1071/pc070147.

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What a high! The inaugural meeting of the Australasian section of the Society for Conservation Biology was a resounding success, with 369 attendees, 5 symposia, 146 contributed oral papers and 15 poster presentations. The media were attentive, with widespread reporting, at least within the Australian outlets. As noted by an excited Karen Firestone in her postconference summing up: ? ? such a large attendance indicates the strong need and desire for conservation meetings of this sort in the region ? ?. Conservation science is clearly alive and well in Australasia.

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Pilosi, Lisa, and Mark T. Wypyski. "Technical Examination and Conservation of Glass." Metropolitan Museum of Art Bulletin 59, no. 1 (2001): 66. http://dx.doi.org/10.2307/3269175.

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Bettembourg, J. M. "Preventive conservation of stained glass windows." Studies in Conservation 39, sup2 (January 1994): 110–15. http://dx.doi.org/10.1179/sic.1994.39.supplement-2.110.

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van Lookeren Campagne, Kate. "Conservation and Care of Glass Objects." Studies in Conservation 54, no. 2 (January 2009): 129. http://dx.doi.org/10.1179/sic.2009.54.2.129.

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Murcia-Mascarós, Sonia. "Glass science in art and conservation." Journal of Cultural Heritage 9 (December 2008): e1-e4. http://dx.doi.org/10.1016/j.culher.2008.10.001.

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Дисертації з теми "Glass conservation"

Carothers, Milena R. "Ancient Cypriot Glass: Production, Reception, and the Collections at the Claremont Colleges." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/scripps_theses/1339.

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This thesis examines the collection of Cypriot glass stored in the basement at Scripps and its context throughout history. The first chapter focuses on the collection itself and includes a brief summary of the founding of the Mudd family’s Cyprus Mines Corporation, which led to the collection of the glass. The repatriation of the collection is also detailed. The second chapter examines the history of Cyprus, and how valuable resources such as copper led to trade on the island. A history of glass is given: how it was made, what it was made out of, and how it was used and appreciated at different times in history. The third chapter addresses the history of the glass trade and production on Cyprus. Island-specific shapes and production are explored. This chapter also looks at how glass was valued and used by different levels of society as glass production evolved and led to a saturated market. The fourth chapter focuses on five pieces selected from the Scripps and Mudd collections. These case studies include conservation condition reports. Physical description, condition, use, and similar examples in other collections are detailed. The final chapter addresses glass conservation. It contains an analysis of previous conservation interventions, descriptions of different types of weathering and degradation, and tips for stabilizing, storing, shipping, handling, and displaying the collection.

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Ryan, Jason Lawrence. "The atmospheric deterioration of glass : studies of decay mechanisms and conservation techniques." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361666.

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Wertheimer, Mariana Gaelzer. "A arte vitral do século XX em Pelotas, RS." Universidade Federal de Pelotas, 2011. http://repositorio.ufpel.edu.br/handle/ri/1050.

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Made available in DSpace on 2014-08-20T13:20:53Z (GMT). No. of bitstreams: 1 Mariana_Gaelzer_Wertheimer_Dissertacao.pdf: 14476243 bytes, checksum: 554b0d832fe6300fb5e78c25059e11c3 (MD5) Previous issue date: 2011-07-01
In order to understand the manifestation of the stained glass art of the XX century in the city of Pelotas, it was necessary to acknowledge its general aspect, its evolution and historical processes, its technological and composing characteristics, as well as its degradation process. It was possible to identify thirteen stained glass examples in the central area of the city of Pelotas using a methodology of instrumental survey of cadastral records. The stained glass examples were analyzed according to formal and technological characteristics, and also aspects regarding its conservation and changes caused by the passage of time or by human intervention. The analysis showed different types of stained glasses considering either its iconography or its technological aspect. This survey of thirteen examples of stained glass carried out in the city of Pelotas showed that they represent the economic and cultural power of the city. Although there is a large gap it is possible to consider that the stained glasses represent a cultural manifestation with European influence although not related to the Portuguese tradition. As a symbol of economic and cultural progress of the city, its manufacture has not been very much changed through the years. The religious stained glasses identified date back to the medieval tradition, they represent the narrative and the mark of their donor. The profane ones have decorative characteristics representing floral or bucolic motifs related to the New Art tradition and the movements of Applied Arts
Para compreender a manifestação da arte do vitral do século XX na cidade de Pelotas, foi necessário conhecê-la em seu aspecto geral, seu processo evolutivo, histórico, suas características tecnológicas e compositivas, assim como seu processo de degradação. A partir de uma metodologia de levantamento instrumentalizado com fichas cadastrais, foi possível identificar treze exemplares de vitrais na zona central da cidade de Pelotas. Os exemplares foram analisados quanto as suas características formais e tecnológicas e, também, quanto aos aspectos de conservação e alterações causadas pela ação do tempo ou pela intervenção humana. A análise permitiu identificar diferentes tipologias de vitrais, que r seja sob o olhar tecnológico quer sob o olhar iconográfico. O levantamento dos exemplares de vitrais pelotenses, feito nesta pesquisa, mostrou serem estes representativos do poder econômico e cultural da cidade e que, apesar de grandes lacunas, pode-se considerar que estes representam uma manifestação cultural com influência europeia sem, no entanto, se vincular à tradição portuguesa, e que, sendo um símbolo de progresso econômico e social da cidade, sua manufatura pouco se alterou desde as suas origens. Os vitrais religiosos identificados remontam à tradição medieval da narrativa e da presença da marca dos doadores. Os vitrais profanos trazem características decorativas representando motivos florais ou bucólicos, vinculados à tradição da Arte Nova e dos movimentos de Artes Aplicadas

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Allard, Austin. "Energy-Saving Non-Metallic Connectors for Precast Sandwich Wall Systems in Cold Regions." Thesis, North Dakota State University, 2014. https://hdl.handle.net/10365/26840.

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Conserving energy in large structural buildings has become very important in today's economy. A number of buildings today are constructed with sandwich wall panels. Steel connections are most commonly used in these panels. The problem with steel is that it has a tendency to reduce the thermal resistance of the insulation. This project considers glass fiber reinforcing polymers (GFRP) and carbon fiber reinforcing polymers (CFRP) as an alternate material to steel. An experimental sandwich wall panel was constructed and subjected to freezing temperatures. The results of the experimental program were compared to a theoretical model using the ANSYS computer program. The model was verified using current analytical methods that determine the heat flux of a sandwich wall panel. The methods investigated include the parallel path, zone, parallel flow, and isothermal planes methods. The results suggest that the GFRP connectors perform slightly better than the steel and CFRP connectors.
ND EPSCoR

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Lee, Eunji (Jubee). "After the big wind stops I see gentle waves." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5367.

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This thesis covers my reflections on the inspirations and the motivations behind selected works including my candidacy exhibition; Resonance and my thesis exhibition; after the big wind stops I see gentle waves. It contains my life throughout my MFA studies and the development of my art practice. Through its story-within-a-story method of narration and my describing streams of my thoughts, I am attempting to explain the processes of my development and the discoveries I have made, the little things in my daily life, and the big turning points that inspired me. My work and this document have been strongly determined by my poetic imagination and the emotional events and experiences I have had.

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Kuchenbecker, Emily E. "Lifetime." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5838.

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Time is my bully. Time marks the start of something, as well as the end. We are all carrying out the inexorable passing of time as it relates to our impending mortalities. I do not fear death. The awareness of my body’s impermanence employs me to feel that much more connected to the vessel containing that of which I am. But what am I? Am I my body- or is it much deeper? Through the work executed during my graduate research, I have attempted to quantify my existence through the archiving my time and body. This document ushers you through my perception, my relationship to nature, and how it manifests through discovering answers to what I believe it means to be human.

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DeMer, Stephanie. "Enact in Disappearance." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5454.

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Alloteau, Fanny. "Contribution à la compréhension des mécanismes de l'altération atmosphérique des verres et étude d'un traitement de protection à base de sels de zinc." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEC004/document.

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Parmi la grande diversité des productions de verres anciens appartenant aux collections muséales (vaisselle, vitres, vitraux, bijoux, perles, incrustations, statuettes, mosaïques, émaux, céramiques glaçurées…), une proportion importante montre à leur surface les signes sévères d’une altération atmosphérique (présence de sels alcalins, fracturation) conduisant à une perte de transparence voire une perte irréversible de matière. Ces œuvres sont produites essentiellement à partir du Moyen-Âge (XIIe-XIIIe siècle), avec une forte représentation aux XVIe, XVIIe et XVIIIe siècles. Les verriers ont en effet appliqué alors de nouvelles recettes par rapport à celles des périodes anciennes conduisant à une instabilité chimique du verre vis-à-vis de l’humidité ambiante. Quant aux œuvres actuellement en bon état de conservation, elles sont également susceptibles de se dégrader au cours du temps, selon leur composition et leur condition de conservation. À ce jour, le meilleur moyen de protection mis en œuvre par les conservateurs et les restaurateurs pour ralentir sensiblement cette altération est le contrôle de la température et de l’humidité de l’environnement de conservation (vitrines d’exposition spécifiques, réserves de musée). Cependant, afin de préserver cet important patrimoine culturel, il est d’un intérêt majeur de proposer de nouvelles solutions de protection qui soient à la fois plus efficaces et moins coûteuses pour les musées. C’est dans ce contexte que s’inscrit le présent projet de thèse. Il vise d’une part à faire progresser la compréhension des mécanismes d’altération atmosphérique des verres d’oxyde, d’autre part à mettre au point un traitement de protection à base de sels de zinc adapté au contexte muséal. En s’inspirant de procédés industriels qui exploitent de manière empirique l’effet protecteur des ions zinc (stockage et transport du verre plat, produits de lavage du verre en lave-vaisselle), nous avons en effet d’ores-et-déjà mis en évidence le fort potentiel de très faibles quantités de sels de zinc pour réduire efficacement les cinétiques d’altérations de compositions verrières altérables du patrimoine
In the cultural heritage field, it is of major concern to develop new protective methods for ancient glass objects that decay under atmosphere. In this framework, two complementary research directions are undertaken. The first one aims to get a better understanding of the glass atmospheric alteration mechanisms at a small scale. The second one is focused on the potentiality of a zinc salt surface treatment. By the mean of accelerated ageing experiments (temperature and humidity control) of replica glasses (alkali silicates), untreated or zinc salts treated, the evolution of the glass surface and sub-surface with atmospheric alteration are evaluated at different scales (macro – nano). These surface modifications are compared to the properties of hydrated layers of ancient glass objects that have been altered over decades. The influence of the ageing temperature and the glass composition on the atmospheric alteration mechanisms are highlighted. In particular, these parameters affect the proportion of alkali elements that are retained into the hydrated layer, which would severely impact the glass chemical durability. Positive effect of a zinc salt treatment to reduce the replica glasses hydration kinetics is shown with ageing experiments at 80 °C or 40 °C, when the glass surfaces are not pre-altered before the deposit. The formation of thermally activated zinc species that react with the glass surface are put in evidence as well as their predominant role in the protection mechanisms. Therefore, a zinc salt treatment might be considered if a heating step of the glass object is accepted (around 60 °C). However, the treatment performances seem to be strongly dependent on the surface alteration degree before the deposit. This point is critical for the relevance of the treatment for the glass artwork conservation and should be investigated deeper. Others directions of research are arisen in this work and should be followed to propose new protective methods in the longer terms

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Dvořáková, Zuzana. "Obchodní dům "Centrum" v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227137.

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The subject of the thesis is an architectural study of the reconstruction and extension of the "Centrum" department store in Brno. It is a dominant building designed by the famous czech architect Vladimir Karfík, which is located at the Urban Conservation Area Brno. Object wasn´t realized with the full extent of the original proposal, so in the project is planned a completion of it. The new solution respects the historical quality of Urban Conservation Area Brno with a concurrent view of the location on the lucrative land in the city center. The architectural concept is based on a return to the original idea of the architect and the addition of my own creative contribution within the extension of the new floors. Draft of the extension is intended so that the individual parts of an object communicate with each other, but they are easily recognizable as well. This idea was filled by both parts linked together visually by horizontal lines and ripple, which is used on balconies of the extension and behind the facade of the current building by shielding walls. However it is emphasized the contrast between an enclosed mass and a free-flowing space. The existing part of the building is used especialy as a leasable area of trade and services. On the upper floors there are areas of administration. Furthermore, there will be a restaurant and cafe with exhibition galleries and apartments are designed on the new added floors. The building is adapted to use by person with limited mobility. Newly added uses in the object will increase the attractiveness of the building and its surroundings.

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Page, Marine. "Création d'objets mats : optimisation d’un procédé d’impression en relief en termes d’apparence." Thesis, Paris, CNAM, 2018. http://www.theses.fr/2018CNAM1204/document.

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L’impression 2.5D est une technologie à mi-chemin entre l’impression couleur traditionnelle, à laquelle elle emprunte son procédé et la qualité de reproduction des couleurs, et l’impression 3D qui crée des reliefs et des formes. Par ses qualités visuelles, elle pourrait permettre la reproduction réaliste de multiples surfaces, mais un frein s’oppose à cette perspective : les encres brillent. En modulant la rugosité des surfaces imprimées à l'échelle du micromètre, en fréquence et en amplitude, nous avons réussi à réduire et contrôler le brillant des encres. Des stratégies d'impression différentes ont été proposées et étudiées pour diminuer l’effet scintillant et permettre l’impression d’une couche couleur mate : la création d'un espace à cinq dimensions dans lequel le brillant et la couleur sont modélisés aboutit à l'uniformisation des niveaux de brillant colorés. Les protocoles d'impression développés ont ensuite été appliqués à des cas concrets issus de la conservation – restauration du patrimoine. Plusieurs exemples distincts sont présentés, qui abordent un point particulier sur lequel l’impression 2.5D est pertinente: comblement de lacune, création de répliques réalistes, intérêt de l'aspect visuel mat pour la lisibilité des œuvres
2.5D printing is between traditional color printing, for the process and its visual quality, and 3D printing, which makes forms and reliefs by ink superposition. Because of its properties, 2.5D printing could allow the realistic reproduction of objects and surfaces, but inks are too glossy. To reduce and control this glossy aspect of inks, we modulate the roughness of the printed layers, at the micro-scale, both in frequency and amplitude. Influence of parameters was measured, and different strategies were suggested to reduce sparkle and to allow the creation of matte colored layers: by constituting a 5D space where gloss and color are modeled, we can make gloss level of colored surfaces uniform.Several case studies form the Conservation of Cultural Heritage were considered, where 2.5D printing could help the curator, the conservator or the archivist. We studied in particular the issues of the the gap filling on an archaeological object, the realistic reproduction of surfaces, and the creation of matte objects for readability

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Книги з теми "Glass conservation"

Newton, R. G. Conservation of glass. Oxford: Butterworth-Heinemann, 1996.

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Sandra, Davison, ed. Conservation of glass. London: Butterworths, 1989.

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Collins, G. R. Conservation of plain glass. Oxford: Oxford Brookes University, 1993.

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Conservation and restoration of glass. 2nd ed. Oxford: Butterworth Heinemann, 2003.

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Glass, Corning Museum of, ed. Conservation and care of glass objects. London: Archetype Publications, 2006.

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Fisher, Charles E. Installing insulating glass in existing wooden sash incorporating the historic glass. Washington, D.C: National Park Service, U.S. Dept. of the Interior, 1985.

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de, Coninck Jan, ed. AGC glass building. Tielt: Lannoo Publisher, 2014.

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C, Jester Thomas, ed. Twentieth-century building materials: History and conservation. New York: McGraw-Hill, 1995.

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Hore, Rachel. The glass painter's daughter. Rearsby: W F Howes, 2009.

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Gaines, L. L. Energy implications of glass-container recycling. Argonne, Ill: Energy Systems Division, Argonne National Laboratory, 1994.

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Частини книг з теми "Glass conservation"

Burgess, David. "Glass and Glazes." In Chemical Science and Conservation, 29–39. London: Macmillan Education UK, 1990. http://dx.doi.org/10.1007/978-1-349-11429-0_3.

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Davis, Suzanne, and Claudia Chemello. "Glass: Conservation and Preservation." In Encyclopedia of Global Archaeology, 4589–93. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30018-0_540.

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Davis, Suzanne, and Claudia Chemello. "Glass: Conservation and Preservation." In Encyclopedia of Global Archaeology, 3047–50. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4419-0465-2_540.

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Koob, Stephen P. "The Conservation of Glass." In Ancient Glass of South Asia, 203–9. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3656-1_7.

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Forsyth, Michael. "Window Glass." In Materials & Skills for Historic Building Conservation, 196–99. Oxford, UK: Blackwell Publishing Ltd, 2008. http://dx.doi.org/10.1002/9780470697696.ch12.

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White, Lisa. "Ceramic and glass." In Interior Finishes & Fittings for Historic Building Conservation, 125–42. Oxford, UK: Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9781444344837.ch10.

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D'Andrea, John. "Energy Conservation Opportunities in the Glass Industry." In 64th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 25, Issue 1, 191–93. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470294857.ch14.

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Cagno, Simone, Gert Nuyts, Olivier Schalm, Joost Caen, and Koen Janssens. "Novel Methods of Evaluation for the Conservation of Browned Historical Stained Glass." In Modern Methods for Analysing Archaeological and Historical Glass, 677–90. Oxford, UK: John Wiley & Sons Ltd, 2013. http://dx.doi.org/10.1002/9781118314234.ch31.

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Al Bawab, Abeer, Reema Al-Omari, Ramadan Abd-Allah, Ayat Bozeya, Rund A. Abu-Zurayk, and Fadwa Odeh. "The Application of a Modified Sol-Gel Silica Coating for the Protection of Corroded Roman Soda-Lime-Silica Glass: An Experimental and Analytical Study." In 10th International Symposium on the Conservation of Monuments in the Mediterranean Basin, 189–97. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78093-1_19.

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"Glass." In Chemicals and Methods for Conservation and Restoration, 213–35. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119418894.ch6.

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Тези доповідей конференцій з теми "Glass conservation"

Glikman, Jenny Anne, Beatrice Frank, and Silvio Marchini. "Coexistence: looking at the glass half full." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/106930.

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Wilk, Dariusz, Marta Kamińska, Małgorzata Walczak, and Ewa Bulska. "Archaeometric investigations of medieval stained glass panels from Grodziec in Poland." In Lasers in the Conservation of Artworks XI. Nicolaus Copernicus University Press, 2017. http://dx.doi.org/10.12775/3875-4.19.

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Chang, S. L., C. Q. Zhou, B. Golchert, and M. Petrick. "Simulation of Multi-Phase Glass-Melt Flows in a Glass Melter." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/htd-24235.

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Abstract A typical glass furnace consists of a combustion space and a melter. The intense heat, generated from the combustion of fuel and air/oxygen in the combustion space, is transferred mainly by radiation to the melter where the melt sand and cullet (scrap glass) are melted, creating molten glass. The melter flow is a complex multi-phase flow including solid batches of sand/cullet and molten glass. Proper modeling of the flow patterns of the solid batch and liquid glass is a key to determining the glass quality and furnace efficiency. A multi-phase CFD code has been developed to simulate glass melter flow. It uses an Eulerian approach for both the solid batch and the liquid glass-melt flows. The mass, momentum, and energy conservation equations of the batch flow are used to solve for local batch particle number density, velocity, and temperature. In a similar manner, the conservation equations of mass, momentum, and energy of the glass-melt flow are used to solve for local liquid molten glass pressure, velocity, and temperature. The solid batch is melted on the top by the heat from the combustion space and from below by heat from the glass-melt flow. The heat transfer rate from the combustion space is calculated from a radiation model calculation while the heat transfer rate from the glass-melt flow to the solid batch is calculated from a model based on local particle number density and glass-melt temperature. Energy and mass are balanced between the batch and the glass-melt. Batch coverage is determined from local particle number density and velocity. A commercial-scale glass melter has been simulated at different operating/design conditions.

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Gavrilova, K. A., and A. A. Leonidova. "CONSERVATION METHODS OF PROTECTION OF BRASS ALLOYS IN NON-SOLDERING STAINED-GLASS WINDOWS." In Реставрация. Наш взгляд - 2022. Санкт-Петербург: Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургская государственная художественно-промышленная академия имени А.Л. Штиглица», 2022. http://dx.doi.org/10.54874/9785604831069_25.

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Varady, Mark J., and Andrei G. Fedorov. "Combined Radiation and Conduction in Glass Foams." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/htd-24264.

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Abstract Understanding of heat transfer in glass foams and the development of theoretical tools for predicting heat transfer properties of glass foams is critical to improving the efficiency of glass manufacturing. In this paper, combined radiation and conduction heat transfer in a semitransparent glass foam layer is analyzed. The foam layer is bounded by hot combustion gases on top and glass melt on bottom. Heat transfer is assumed to be one-dimensional perpendicular to the plane-parallel foam layer. A previously developed model is used to calculate effective extinction coefficients and scattering phase function of the foam layer using a void size distribution and assuming all voids to be spherical. These radiation properties are then used along with a Schuster-Schwarzchild two flux approximation to solve the radiative transfer equation (RTE). A method for obtaining the effective thermal conductivity of the foam layer is also presented. The RTE and the energy conservation equations are simultaneously solved using a numerical iteration procedure. The effect of foam thickness and bubble size on the temperature distribution in the foam layer is studied.

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Osticioli, I., A. A. Mencaglia, D. Ciofini, and S. Siano. "Detection of the Glass Transition of Polymers Used in Art and Art-Conservation Using Raman Spectroscopy." In 18th Italian National Conference on Photonic Technologies (Fotonica 2016). Institution of Engineering and Technology, 2016. http://dx.doi.org/10.1049/cp.2016.0957.

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Chang, S. L., C. Q. Zhou, and B. Golchert. "A Simulation Approach for Bubble Flow in a Glass Melter." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33494.

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Combustion heat is used in glass furnaces to melt sand and cullet (scrap glass) into liquid glass to make products. The glass flow in a melter consists of solid particles of sand/cullet, liquid glass, and bubbles. Bubbles formed in the melting processes due to the glass reactions have strong impacts on glass quality and furnace efficiency. Smaller bubbles entrained in the liquid flow degrade the glass quality. Larger bubbles rise to the top of the melter and form a foam layer that impedes the radiation heat transfer from the combustion space and lowers the furnace efficiency. An Eulerian approach was developed to simulate the bubble flow in a glass melter. The approach divides bubbles into various groups and treats each group of bubbles as a continuum. The mass, momentum, and energy conservation equations of the bubble flow are derived to solve for local bubble properties. The approach was incorporated into a multiphase reacting flow computational fluid dynamics code that simulates overall furnace flows to evaluate the impacts of bubbles on glass quality and furnace efficiency.

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Kitamura, Rei, and Laurent Pilon. "Modeling Hydrogen Release From Doped Borosilicate Glass by Furnace or Lamp Heating." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88564.

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This paper explores the physical mechanisms responsible for so-called “photo-induced hydrogen outgassing”. The latter refers to enhanced hydrogen release rate from doped borosilicate glass samples during incandescent lamp heating compared with furnace heating. Experimentally, the glass sample was placed inside an evacuated silica tube. Both were modeled as plane parallel slabs exposed to diffuse furnace radiation or to collimated lamp radiation. Combined conduction, radiation, and mass transfer were accounted for by solving the one-dimensional transient mass and energy conservation equations along with the steady-state radiative transfer equation. All properties were found in the literature. The experimental observations can be qualitatively explained based on conventional thermally activated gas diffusion and by accounting for the participation of the silica tube to radiation transfer along with the spectral properties of the glass samples.

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Giannopapa, C. G. "Development of a Computer Simulation Model for Blowing Glass Containers." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93262.

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In glass container manufacturing (e.g. production of glass bottles and jars) an important process step is the blowing of the final product. This process is fast and is characterized by large deformations and the interaction of a hot glass fluid that gets into contact with a colder metal, the mould. The objective of this paper is to create a robust finite element model to be used for industrial purposes that accurately captures the blowing step of glass containers. The model should be able to correctly represent the flow of glass and the energy exchange during the process. For tracking the geometry of the deforming inner and outer interface of glass, level set technique is applied on structured and unstructured fixed mesh. At each time step the coupled problem of flow and energy exchange is solved by the model. Here the flow problem is only solved for the domain enclosed by the mould, whereas in the energy calculations, the mould domain is also taken into account in the computations. For all the calculations the material parameters (like viscosity) are based on the glass position, i.e. the position of the level sets. The velocity distribution, as found from this solution procedure, is then used to update the two level sets by means of solving a convection equation. A re-initialization algorithm is applied after each time step in order to let the level sets re-attain the property of being a signed distance function. The model is validated by several examples focusing on both the overall behavior (such as conservation of mass and energy) and the local behavior of the flow (such as glass-mould contact) and temperature distributions for different mesh size, time step, level set settings and material parameters.

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Jorgensen, K. L., S. Ramadhyani, and R. Viskanta. "Numerical Modeling of Combustion and Heat Transfer in a Laboratory Scale Glass Melting Furnace." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-1054.

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Abstract A fully three-dimensional model and computer code has been developed for predicting and analyzing combustion and heat transfer in the combustion space of glass melting furnaces. It is capable of predicting steady state temperature, velocity, and species concentration distributions throughout the combustion chamber and spatially resolving the heat transfer to the surrounding walls and the glass/batch surface. Model predictions are obtained from the solution of coupled conservation equations employing a control volume formulation. The discrete ordinates method along with the weighted-sum-of-gray gases model is used to determine radiative heat transfer to the surfaces enclosing the combustion space and within the flow field. Turbulence is modeled using a high Reynolds number k-ε model. A fast-kinetics, single-step combustion model using an assumed shape clipped Gaussian probability density function is used to determine gas species concentrations. The model predications are compared to test data from a laboratory scale glass furnace simulator at the Institute of Gas Technology. Comparisons of predicted quantities are made for wall temperatures, glass surface heat flux, and exit gas stream temperature. Wall and roof temperatures were predicted on average to within 7 percent and global heat fluxes were with in 10 percent of measured levels. Examples of predicted temperature, velocity, and species concentration are presented.

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Звіти організацій з теми "Glass conservation"

Garrett-Price, B. A., A. G. Fassbender, and G. A. Bruno. Potential for energy conservation in the glass industry. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/5576823.

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Martin, Kathi, Nick Jushchyshyn, and Claire King. James Galanos Evening Gown c. 1957. Drexel Digital Museum, 2018. http://dx.doi.org/10.17918/jkyh-1b56.

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The URL links to a website page in the Drexel Digital Museum (DDM) fashion image archive containing a 3D interactive panorama of an evening suit by American fashion designer James Galanos with related text. This evening gown is from Galanos' Fall 1957 collection. It is embellished with polychrome glass beads in a red and green tartan plaid pattern on a base of silk . It was a gift of Mrs. John Thouron and is in The James G. Galanos Archive at Drexel University. The panorama is an HTML5 formatted version of an ultra-high resolution ObjectVR created from stitched tiles captured with GigaPan technology. It is representative the ongoing research of the DDM, an international, interdisciplinary group of researchers focused on production, conservation and dissemination of new media for exhibition of historic fashion.

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