Relevant bibliographies by topics / Latex Film Formation

Academic literature on the topic 'Latex Film Formation'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Latex Film Formation"

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Winnik, Mitchell A. "Latex film formation." Current Opinion in Colloid & Interface Science 2, no. 2 (April 1997): 192–99. http://dx.doi.org/10.1016/s1359-0294(97)80026-x.

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KEDDIE, J. "Film formation of latex." Materials Science and Engineering: R: Reports 21, no. 3 (December 25, 1997): 101–70. http://dx.doi.org/10.1016/s0927-796x(97)00011-9.

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Chindawong, Chakkresit, Naruemon Setthaya, Pagasukon Mekrattanachai, Nattapong Damrongwiriyanupap, Kedsarin Pimraksa, and Diethelm Johannsmann. "Effect of adding carboxymethyl cellulose, zeolite and microcrystalline cellulose on the optical and mechanical properties of latex composite films." Journal of Physics: Conference Series 2175, no. 1 (January 1, 2022): 012011. http://dx.doi.org/10.1088/1742-6596/2175/1/012011.

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Abstract In this research, four-types of latex composite films which are carboxymethyl cellulose latex composite film, zeolite latex composite film, microcrystalline cellulose latex composite film and microcrystalline cellulose sodium hydroxide latex composite film were prepared by casting method. Drying time of all films formation is 24 hr. The average thickness of the dry film is 0.10 mm. The transparency of films were measured by UV-Vis spectrophotometer. It was found that the carboxymethyl cellulose latex composite film have more transparency than zeolite latex composite film, microcrystalline cellulose latex composite film and microcrystalline cellulose sodium hydroxide latex composite film respectively. The analysis of functional group of films were measured by ATR-FTIR technique. It was found that all types of films consist of O-H stretching group and C=O group without ether group of cellulose and Si-O-Al group of zeolite. The mechanical property of films were measured by Universal Testing Machine. It was found that the Young’s modulus of microcrystalline cellulose sodium hydroxide latex composite film was higher than microcrystalline cellulose latex composite film, zeolite latex composite film and carboxymethyl cellulose latex composite film respectively. The characteristic of stress-strain curve of films showed that all films were hard and brittle except microcrystalline cellulose latex composite films were hard and tough.
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Ming, Yaqiang. "Microscopy of latex film formation." Proceedings, annual meeting, Electron Microscopy Society of America 52 (1994): 1042–43. http://dx.doi.org/10.1017/s0424820100172942.

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Latex here denotes a stable colloidal dispersion of polymer in solvent. The solvent usually is water. Large tonnages of latices are used in paper coatings, paints, and growing numbers of other waterbased coatings. All these applications require the latices to be film-forming, at least to a degree. Despite past investigations, the mechanisms of film formation are not well understood and are now being studied intensively in several places.Our goal is to understand how a suspension of latex particles in water or other solvent becomes a continuous film, one monolayer or multiple layers deep. Several techniques have been employed: transmission electron microscopy ( TEM ) including replication, freeze-fracture, and microtome sample preparations, small angle neutron scattering ( SANS ); cryogenic scanning electron microscopy ( Cryo-SEM ), and atomic force microscopy ( AFM ). TEM is tedious and requires small thin samples; SANS is expensive, time consuming, and difficult to interpret; AFM is easy to use, but images must be interpreted with caution because artifacts can prevail.
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Visschers, Marcel, Jozua Laven, and Rob Linde. "Film formation from latex dispersions." Journal of Coatings Technology 73, no. 5 (May 2001): 49–55. http://dx.doi.org/10.1007/bf02698431.

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Chevalier, Y., C. Pichot, C. Graillat, M. Joanicot, K. Wong, J. Maquet, P. Lindner, and B. Cabane. "Film formation with latex particles." Colloid & Polymer Science 270, no. 8 (August 1992): 806–21. http://dx.doi.org/10.1007/bf00776153.

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Song, Mo, Douglas J. Hourston, and Yongxin Pang. "Surface dynamics during latex film formation." Progress in Organic Coatings 40, no. 1-4 (December 2000): 167–73. http://dx.doi.org/10.1016/s0300-9440(00)00143-0.

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Yi, Wang, Chen Zhonghua, and Yu Fei. "Coalescing Aid Influences on Acrylic Latexes Property and Film Formation Process." Indian Journal of Materials Science 2016 (December 26, 2016): 1–8. http://dx.doi.org/10.1155/2016/1380791.

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The coalescing aid of propylene glycol phenyl ether (PPh) influences on the latexes system and its film formation process have been demonstrated in this paper. The latexes with different Tg are synthesized by seeded semicontinuous emulsion polymerization. The PPh have a significant impact on the water evaporation stage, in which PPh decreased the water evaporation rate for a low Tg latex system but accelerated the rate for a high Tg latex. This result was quantified using Routh-Russel model which was a useful model for the prediction of the latex particle deformation mechanisms. The different amounts of PPh can change the latex particle deformation mechanisms. The TGA results show that the PPh still exist in the latexes films during drying. The microstructures of the latex film which dry under 70°C with the PPh for different time display that the PPh can accelerate the polymer molecules motion and the diffusion rate for the latex coalescence stage.
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Shaffer, O. L., M. W. Sandor, and M. S. El-Aasser. "The Morphology of Carboxylated Composite Latex and Latex Film." Microscopy and Microanalysis 4, S2 (July 1998): 826–27. http://dx.doi.org/10.1017/s1431927600024259.

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Carboxylated latex has become very important in the formation of polymer films. In order to study the film and its properties it is important to know the morphology of the latex that is forming the film. The latex for this study has been examined by transmission electron microscopy(TEM) using positive preferential stains such as ruthenium tetroxide (RuO4) and cesium hydroxide(CsOH); and uranyl acetate(UAc) as a negative stain.The polybutyl acrylate(PBA)/ polymethylmethacrylate(PMMA) composite latex particles consist of a soft core phase and a hard second phase with varying amounts of acrylic acid in the core, the shell and in both core and shell. The latexes were examined before and after cleaning. The cleaning was necessary in order to remove the surfactant and any small particles that might have formed during the emulsion polymerization. Prior to cleaning, the small particles adhered to the surfaces of the particles making it difficult to determine the final morphology of the latex particles.
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Uğur, Ş., Ö. Yargi, and Ö. Pekcan. "Conductivity percolation of carbon nanotubes (CNT) in polystyrene (PS) latex film." Canadian Journal of Chemistry 88, no. 3 (March 2010): 267–76. http://dx.doi.org/10.1139/v09-173.

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In this study, the effect of multiwalled carbon nanotubes (MWNT) on film formation behaviour and electrical conductivity properties of polystrene (PS) latex film was investigated by using the photon transmission technique and electrical conductivity measurements. Films were prepared by mixing PS latex with different amounts of MWNTs, varying in the range between 0 and 20 wt%. After drying, MWNT content films were separately annealed above the glass transition temperature (Tg) of PS, ranging from 100 to 270 °C, for 10 min. To monitor film formation behavior of PS–MWNT composites, transmitted light intensity, Itr, was measured after each annealing step. The surface conductivity of annealed films at 170 °C was measured and found to increase dramatically above a certain fraction of MWNT (4 wt%) following the percolation theory. This fraction was defined as the percolation threshold of conductivity, Rc. The conductivity scales with the mass fraction of MWNT as a power law with exponent 2.27, which is extremely close to the value of 2.0 predicted by percolation theory. In addition, the increase in Itr during annealing was explained by void closure and interdiffusion processes. Film formation stages were modeled and the corresponding activation energies were measured.
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Dissertations / Theses on the topic "Latex Film Formation"

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Nilsson, Kristian. "Film formation of latex in dry coating films." Thesis, Karlstad University, Faculty of Technology and Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1048.

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The objective of this master thesis was to investigate the possibility to measure the gain in stiffness of the dry coating due to film formation of latex with a Dynamic Mechanic Thermal Analyzer (DMTA). This could tell when and to which extent the latex forms a film after the drying process.

Two latices with different Tg was used for the experiments, one with a Tg of 36°C, denoted hard, and the one with a Tg of 8°C, denoted soft. The hard latex was used to make coating samples that would not form a film when dried at room temperature and the soft latex was used as a reference to the coating with hard latex since it would form a film at room temperature.

It was shown that a gain in stiffness due to film formation of latex in coating can be measured with a DMTA. It was also shown that that the film forming of latex in coatings depend on time, temperature and the history of the sample. Further investigations were carried out to try to determine the time for film formation to be completed at a certain temperature.. These investigations showed that this type of trials cannot be carried out in a DMTA directly since the stiffness seemed to increase monotonically during a very ling time. This might be due to the rearrangements in the pigment structure that might affect the gain in stiffness. Therefore, a method involving oven curing was developed. Only one series of test were performed with this method due to lack of time but the method showed promising results.


Syftet med detta examensarbete var att undersöka möjligheten att använda en Dynamic Mechanic Thermal Analyzer (DMTA) för att mäta ökningen av styvhet som följd av filmbildning av latex i en torr bestrykning.

Två olika latexer användes för experimenten, en med Tg = 36°C (hård) och en med Tg = 8°C (mjuk). Den hårda latexen användes för att kunna göra tester på prover som ännu inte filmbildat när de torkat vid rumstemperatur och den mjuka latexen användes för att göra referens prover mot bestrykningen med hård latex.

Resultaten visade att det går att mäta styvhetsökning i bestrykningen som en följd av filmformation med DMTA och filmformation av latex i bestrykningen troligtvis beror på både tid, temperatur och provets historia. Ett försök att mäta vilken uppehålls tid vid en specifik temperatur som krävs för att filmbildningen skall fulländas genomfördes. Dessa försök visade att DMTA:n inte var en lämplig metod för att mäta denna tid då styvheten verkade öka under en längre tid. Detta kan bero på att pigment partiklarna packade sig tätare och på så sätt orsakade en ökning av styvheten. Därför gjordes ett annat försök som involverar ugns härdning, men på grund av tidsbrist blev det bara en mätserie utförd. Den sist nämnda metoden visade dock goda resultat och måste därför bedömas ha en potential.

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Weerakkody, Tecla G. "Physical characterisation of latex film formation and film properties." Thesis, University of Surrey, 2009. http://epubs.surrey.ac.uk/843739/.

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In this work, physical characterisation of film formation and film properties of coating and adhesive formulations was performed. Organic/inorganic nanocomposite coatings draw remarkable academic and industrial interest, due to their expected enhancement of combined properties. Film formation and film properties, such as drying, transparency, and final film quality of coating systems containing Laponite clay were studied, in particular the influence of excess surfactant on the drying process. It was found that excess surfactant in the system does affect the physical characteristics of the film formation process. Experiments using magnetic resonance profiling and photographs found lateral flow of liquid from the edges to the centre. Reducing the amount of surfactant in the system improves film quality by reducing lateral flow during film formation. In pressure sensitive adhesive (PSA) applications, such as labels or tapes, it is vital that the films remain optically transparent, regardless of the exposure to high humidity or water. Core/shell PSAs were investigated to determine their drying, water whitening, moisture absorption from high humidity, and adhesive properties. The dependence of these properties on pH and poly (acrylic acid), PAA, was studied. It was found that the hydrophilic pathways created by PAA shells do not contribute to faster drying. In addition, this investigation disproves the idea that a "hairy layer" of PAA keeps the film more open and leads to faster drying. It was found that films with hydrophilic boundaries absorbed more water. The water is evenly distributed along the boundaries, so that films still retain their transparency. It was proved that transparency or water whitening is not necessarily a reliable measurement of water uptake, at least for this system. The findings from this study define guiding principles for organic/inorganic nanocomposite coatings and core/shell PSAs, to have better film formation characteristics and film properties.
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Tzitzinou, Aikaterini. "Physical characterisation of acrylic latex film formation." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/2115/.

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Feng, Jianrong. "Molecular and environmental aspects of latex film formation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0008/NQ28278.pdf.

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Odrobina, Ewa. "Various aspects of latex film formation in the presence of additives." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0020/NQ53679.pdf.

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Paakkonen, Johan. "Surfactants in anionic latex films." Thesis, Karlstads Universitet, Avdelningen för kemi och biomedicinsk vetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-6389.

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Kessel, Nicola. "Physical and Chemical Aspects of the Film Formation of Self-Crosslinking Acrylic Latex Coatings." Thesis, University of Surrey, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486089.

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There is a trend in the coatings industry to replace organic solvent-based systems with equivalently-perfonning, environmentally benign products. Waterborne colloidal polymers represent a promising alternative. The development ofmechanical strength and hardness is often enhanced by chemical crosslinking that creates a three dimensional network. If crosslinking occurs prior to particle coalescence, however, the network will not be continuous throughout the film and a weaker product will result. Therefore, an understanding of the relative rates of polymer interdiffusion and crosslinking is imperative. The competition between these two processes in an acrylic latex containing acrylamide functionality utilising the 'keto-hydrazide' crosslinking reaction has been studied. The mechanism and factors influencing the rate of the crosslinking reaction were investigated in a model system, using spectroscopic techniques. The crosslinking reaction was favoured by the loss ofwater during drying and the simultaneous decrease in pH arising from the evaporation of ammonia. The fundamental understanding achieved from the model system was used to explore the phenomenon within a drying latex film. Measurement of the latex pH relative to polymer mass fraction during film fonnation clarified the expected point of onset for crosslinking in relation to particle packing. Gel fraction and swelling measurements were used to probe the temporal evolution of the cross-link density. Crosslinking is expected when the latex particles are close packed, and there is a rapid increase in gel content in a short period. Atomic force microscopy was used to follow surface levelling relative to the competing influence of crosslinking with film ageing. The flattening of latex particles and interdiffusion lead to the blurring of particle/particle interfaces and both were inhibited by crosslinking. The amount of particle defonnability was identified as a key factor in the amount of surfactant exudation. Factors that increase the amount of particle defonnation and coalescence (e.g. higher film fonnation temperature, lower latex Tg, and no crosslinking) promoted surfactant exudation. Surfactant exudation was inhibited when particles were less defonnable and slower to coalesce. A more hydrophilic atmosphere (high humidity) encouraged surfactant segregation at the interface with the film. Exudation to a 'clean surface' was triggered by raising the temperature or by raising the humidity
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Delafresnaye, Laura. "Élaboration de latex nanocomposites polymère/argile pour la formation de films barrière à l'oxygène et à la vapeur d'eau." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10349.

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Carlsson, Gunilla. "Latex Colloid Dynamics in Complex Dispersions : Fluorescence Microscopy Applied to Coating Color Model Systems." Doctoral thesis, Karlstads universitet, Institutionen för kemi, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-2621.

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Coating colors are applied to the base paper in order to maximize the performance of the end product. Coating colors are complex colloidal systems, mainly consisting of water, binders, and pigments. To understand the behavior of colloidal suspensions, an understanding of the interactions between its components is essential.
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Guillaume, Jean-Luc. "Synthèse de colloïdes modèles par polymérisation en émulsion de styrène et d'acrylate de n-butyle : leur utilisation dans des études de rhéologie et de formation de film." Lyon 1, 1985. http://www.theses.fr/1985LYO10042.

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Books on the topic "Latex Film Formation"

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Keddie, Joseph L., and Alexander F. Routh. Fundamentals of Latex Film Formation. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7.

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Keddie, Joseph L. Fundamentals of latex film formation: Processes and properties. Dordrecht: Springer, 2010.

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Nevskiy, Sergey, Aleksandr Hudokormov, Mihail Pokidchenko, Irina Chaplygina, Al'fred Shyuller, Zigena Gol'dshmidt, and Yoahim Cvaynert. The history of the concept of social market economy in Germany. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1703180.

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The monograph traces the history of the development of German neoliberal economic thought from the origins of the Freiburg School in the 1930s to the first results of the practical implementation of the concept of a social market economy in West Germany in the late 1940s-early 1960s. The author demonstrates the broad historical context of the development of German ideas about the theory and practice of the policy of order (Ordnungstheorie und Ordnungspolitik), shows the features of the formation and spread of the scientific and intellectual economic tradition in Germany, as well as beyond its borders, starting with the birth of the German historical school and the perception of its heritage by Russian socio-economic thought in the second half of the XIX — early XX century and ending with the practical implementation of the concept of order of the Freiburg school and the correlation of its ideological and spiritual and moral foundations with the social teaching of Catholicism and liberalism of Friedrich von Hayek. Special attention is paid to some controversial issues of the formation of the theory of ordoliberalism during the period of national socialism and the problems of the social market economy in modern Germany. The book is intended to fill the shortage of specialized scientific literature on relevant issues and to acquaint the Russian reader, primarily students, teachers and researchers, with the variety of ideological and scientific-theoretical foundations of the socio-economic system of the post-war Germany.
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Feng, Jianrong. Molecular and environmental aspects of latex film formation. 1997.

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Keddie, Joseph L., and Alexander F. Routh. Fundamentals of Latex Film Formation: Processes and Properties. Springer, 2016.

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Odrobina, Ewa Emilia. Varies [sic] aspects of latex film formation in the presence of additives. Dept of Chemistry, U of Toronto, 2000.

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Oh, Jung Kwon. Synthesis and characterization of dye-labeled poly(vinyl acetate-butyl acrylate) latex particles and their application to film formation and polymer interdiffusion. 2004.

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Schotter, Jesse. The Hieroglyphics of Character. Edinburgh University Press, 2018. http://dx.doi.org/10.3366/edinburgh/9781474424776.003.0003.

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This chapter examines how hybrid conceptions of language and media come to challenge representations of literary character and narrative in the modernist period. Understanding Virginia Woolf as a film theorist situated within the ferment of avant-garde film culture in London in the mid-1920s—a period which saw the formation of the journal Close-Up and the London Film Society—the chapter argues that Woolf’s engagement with film and its ‘hieroglyphs’ in her essay ‘The Cinema’ transforms her understanding of language and character in To the Lighthouse. Throughout the late 1920s, Woolf imagines writing as emulating the material and visual form of hieroglyphs, revealing the inscriptions graven upon the ‘sacred tablets’ of the minds and hearts of her characters.
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Dunagan, Colleen T. Commercials as Discursive Assemblages. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190491369.003.0003.

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Chapter Two demonstrates how commercials employ genre-specific codes and conventions to operate as discursive assemblages. The author adopts Grossberg’s concept of cultural formations as a model for analyzing dance in advertising. Through close readings of several commercials created for US companies produced between 1948 and 2012, the chapter offers an historicized reading of the strategic intersections between dance, television, film, and advertising within commercials to produce a form of marketing that simultaneously reinforces and destabilizes disciplinary boundaries. Several concepts central to the larger project are introduced here, including liveness, advertising positioning strategies, direct address and hailing, montage, and film musical conventions. While the study focuses on an analysis of the history and conventions of dance-in-advertising in the United States during the mid-to-late twentieth and early twenty-first centuries, it also includes examples of commercials created to advertise US products in foreign markets.
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Godfrey, Donald G. Founding the Society of Motion Picture and Television Engineers. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252038280.003.0006.

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This chapter focuses on the Society of Motion Picture and Television Engineers (SMPTE), an organization founded by C. Francis Jenkins in 1916. The formation of the SMPTE (formerly Society of Motion Picture Engineers, SMPE) was one of Jenkins' most significant and lasting contributions in the film and television industries. In less than four decades, the SMPTE has evolved into an international association with industry, technological, and creative influence around the world. This chapter provides an overview of the atmosphere that led Jenkins to establish the SMPTE, whose sole purpose would be a discussion of technology and its standards. It also considers the first SMPE meeting and how its influence grew since then, along with its final meeting under Jenkins as president, held in Cleveland in November 1918. Finally, it cites the accolades and foundations established for the SMPE and their impact on the industries of motion pictures and later television engineering.
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Book chapters on the topic "Latex Film Formation"

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Keddie, Joseph L., and Alexander F. Routh. "Drying of Latex Films." In Fundamentals of Latex Film Formation, 95–120. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_3.

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Keddie, Joseph L., and Alexander F. Routh. "Surfactant Distribution in Latex Films." In Fundamentals of Latex Film Formation, 185–212. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_6.

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Keddie, Joseph L., and Alexander F. Routh. "An Introduction to Latex and the Principles of Colloidal Stability." In Fundamentals of Latex Film Formation, 1–26. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_1.

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Keddie, Joseph L., and Alexander F. Routh. "Established and Emerging Techniques of Studying Latex Film Formation." In Fundamentals of Latex Film Formation, 27–94. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_2.

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Keddie, Joseph L., and Alexander F. Routh. "Particle Deformation." In Fundamentals of Latex Film Formation, 121–50. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_4.

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Keddie, Joseph L., and Alexander F. Routh. "Molecular Diffusion Across Particle Boundaries." In Fundamentals of Latex Film Formation, 151–83. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_5.

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Keddie, Joseph L., and Alexander F. Routh. "Nanocomposite Latex Films and Control of Their Properties." In Fundamentals of Latex Film Formation, 213–59. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_7.

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Keddie, Joseph L., and Alexander F. Routh. "Future Directions and Challenges." In Fundamentals of Latex Film Formation, 261–74. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2845-7_8.

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Pekcan, Önder, and Ertan Arda. "Fluorescence Methods for Latex Film Formation." In Stimuli-Responsive Polymeric Films and Coatings, 137–65. Washington, DC: American Chemical Society, 2005. http://dx.doi.org/10.1021/bk-2005-0912.ch009.

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Meyer, Edwin F. "Geometric Considerations in Latex Film Formation." In ACS Symposium Series, 44–50. Washington, DC: American Chemical Society, 1996. http://dx.doi.org/10.1021/bk-1996-0648.ch003.

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Conference papers on the topic "Latex Film Formation"

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Pekcan, Onder M., and Ertan Arda. "Packing effect on latex film formation and dissolution: a UV-to-visible study." In International Symposium on Optical Science and Technology, edited by Cam Nguyen. SPIE, 2000. http://dx.doi.org/10.1117/12.390628.

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Dyephart, Anouchka. "Concevoir aujourd’hui un film sur la villa Savoye." In LC2015 - Le Corbusier, 50 years later. Valencia: Universitat Politècnica València, 2015. http://dx.doi.org/10.4995/lc2015.2015.652.

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Résumé: Si de nombreuses images de la villa Savoye existent, par contre peu de films sont centrés sur elle. Je souhaite présenter ici un projet de film documentaire que je développe depuis 2012. Sur cette villa considérée comme une icône de l’architecture moderne, et déjà tant étudiée, je propose un regard un peu décalé, nourri à la fois par ma formation d’architecte et mon expérience de réalisatrice. J’aborde en particulier la question de l’impact de cette architecture ; comment est-elle perçue au XXIème siècle, en quoi peut-elle influer sur notre façon d’envisager l’espace ? Je développerai un aspect de ma démarche qui touche au rapport entre architecture et cinéma: comment montrer la villa par un film ? autrement dit comment traduire ce qu’elle représente par des images animées, des sons, mais aussi des ‘évènements’ qui dévoilent les contrastes de lumière et d’ambiances ? De quoi cette architecture est-elle le récit ? Ou, comme le proclame une des questions-slogans de Bernard Tschumi : “Et si l’architecture était autant une question de mouvement et d’évènement que d’espace ?”1. Resumen: Si existen numerosas imágenes de la Villa Savoye, escasos son, en cambio, los films que traten de ella. Deseo presentar aquí un proyecto de film documenta, sobre el que estoy trabajando desde el año 2012. Propongo una vision un poco desfasada, nutrida al mismo tiempo por mi formación de arquitecta y mi experiencia de cineasta, sobre esta obra ya tan estudiada, icono de la arquitectura moderna. Abordo especialmente la cuestión del impacto de esta arquitectura; ¿cómo es percibida en el siglo XXI?, ¿qué influencia puede tener en nuestra manera de considerar el espacio? Desarrollaré un aspecto de mi trabajo que trata de la relación entre la arquitectura y el cine: como mostrar la Villa Savoye en un film ? Es decir, como traducir lo que ella representa a través de imágenes animadas, sonido y “acontecimientos” que rebelen los contrastes de luces y de ambientes? ¿ De qué da cuenta esta arquitectura? O, como lo proclama una de las preguntas-eslogan de Bernard Tschumi: “¿Y si la arquitectura fuera tanto cuestión de movimiento y de acontecimiento como de espacio?” Mots-clés: villa Savoye ; film documentaire ; transmission ; création ; recherche formelle. Palabras clave: villa Savoye, película documental, transmisión, creación, investigación formal. DOI: http://dx.doi.org/10.4995/LC2015.2015.652
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Kim, Dongchoul, and Wei Lu. "Interface Instability and Morphology Evolution of Thin Films Induced by Electrostatic Interaction." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14954.

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Experiments have shown that a thin polymer film subjected to an electrostatic field may lose stability at the polymer-air interface, leading to uniform self-organized pillars emerging out of the film surface. This paper presents a three dimensional model to account for this behavior. Attention is focused on a fully nonlinear evolution simulation to reveal the dynamic process from an early perturbation to late structure formation. Energetic components involving the interface energy and dielectric effect, and kinetics of coupled viscous flow and diffusion are incorporated into a phase field framework. The semi-implicit Fourier spectral method and preconditioned biconjugate-gradient method are applied for high efficiency and numerical stability. The simulations reveal rich dynamics of the pattern formation process, and show that the kinetic constraint of the substrate can essentially limit structure coarsening. The pillar size is insensitive to the film thickness while the distance between pillars and the growth rate are significantly affected. The study also suggests an approach to control structural formation in thin films with a designed electric field.
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Ragoonanan, Vishard, Jason Malsam, Daniel R. Bond, and Alptekin Aksan. "Desiccation of Geobacter Sulfurreducens: Membrane Response to Osmotic Stress." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192461.

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Geobacter sulfurreducens is a δ-proteobacterium capable of electron transfer to extracellular compounds and surfaces [1] that has possible technological applications in microbial-based sensors, bioremediation of contaminated environments and harvesting electricity from waste organic matter [2]. Further development of many of these applications requires stabilization and preservation of bacteria as thin films on surfaces. One method of encapsulating bacteria in thin films is through the use of porous latex coatings [2]. However, during the formation of these films, the bacteria are exposed to osmotic stresses.
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Haralson, Marlee, Paul McCarthy, and Anthony R. Fiorillo. "THE CHIGNIK FORMATION, ANIAKCHAK NATIONAL MONUMENT & PRESERVE, ALASKA: A LATE CRETACEOUS (CAMPANIAN-MAASTRICHTIAN) ESTUARY-FILL." In GSA Connects 2021 in Portland, Oregon. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021am-367134.

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Edwards, K. Dean. "Simulation of Spray, Wall-Film, and Charge Preparation for Light-Duty, Cold-Start Applications." In ASME 2022 ICE Forward Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icef2022-91141.

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Abstract For modern, light-duty engine applications, the development of improved operating strategies to expedite catalyst heating during cold-start operation is essential for further reduction of emissions and meeting of future regulations. The development of such strategies would benefit from numerical modeling tools capable of accurate prediction of charge preparation, combustion, and emissions formation at cold-start conditions. Traditional development of simulation tools has primarily focused on standard engine operating conditions, and, as a result, these tools have difficulty accurately capturing extreme behavior during cold-start operation such as extensive wall wetting due to fuel-spray impingement on cold cylinder surfaces, late combustion phasing to increase exhaust enthalpy, and continued oxidation of reactants in the exhaust system. A major objective of the multi-national-laboratory Partnership to Advance Combustion Engines (PACE) consortium is the development and evaluation of new modeling approaches for cold-start operation. In this paper, we present recent progress in simulating charge preparation in a light-duty, multi-cylinder, gasoline engine during cold-start relevant conditions as defined by the U.S. DRIVE Advanced Combustion and Emission Control (ACEC) Tech Team cold-start protocols for catalyst heating. We focus study on fuel spray and spray-wall interactions resulting in extensive film formation due to cold cylinder walls. Simulation results are evaluated at steady-state, cold-start relevant operating conditions. Predictions for film formation and composition with conventional (baseline) models are compared to results with new simulation tools and approaches developed under PACE including the Corrective Distortion Spray Model developed by Sandia National Laboratories, which accounts for non-spherical droplet shapes, and a new spray-wall interaction model developed by Argonne National Laboratory, which accounts for multi-droplet, non-uniform impingement. The current study expands on past studies validating these new submodels with spray-chamber experimental measurements to examine the impact they have on full engine CFD simulations.
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Bal, Harun, Shahanara Basher, Abdulla Hil Mamun, and Emrah Akça. "Export-led Growth Hypothesis in MINT Countries: A Panel Cointegration Analysis." In International Conference on Eurasian Economies. Eurasian Economists Association, 2017. http://dx.doi.org/10.36880/c09.01989.

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The contribution of exports to GDP in MINT countries that improve substantially just after their implantation of export promotion strategy in the late 1980s raises the issue of whether the growth in these countries is led by export or not. While a good number of studies have been found investigating whether economic growth is promoted by exports for developing countries having an outstanding share of export in GDP, no study investigating the export-led growth hypothesis for MINT countries has been found until recent times. The main purpose of this study is to fill up the void. The study employs panel cointegration technique with an aim to examine whether the export is the key factor of economic growth for MINT countries employing yearly secondary data that covers the period. Results of the study imply that economic growth of these countries is considerably exports driven. Moreover, there is an indication of improvement of efficiency as exports work along with the rise capital formation. As the employment opportunity of an economy is expanded through capital formation, the emerging MINT countries endowed with large population and favorable demographics are expected to become the major exporters with strong GDP growth by being able to attract adequate foreign investment.
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Raza, Mustansar, Hossam Elmoneim, Kris Looten, Omar Elzanaty, Ahmed Shakeel, Kamil Shehzad, Mustafa Sarbast, and Serwer Yousif. "Making Workovers Easy and Cost Effective: Turning Old Ways into New Opportunities." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206086-ms.

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Abstract A case study and methodology is presented to shed the light on the different processes followed during the placement of a non-damaging isolation barrier in a group of highly naturally-fractured and vugular gas wells. The temporary isolation aims at isolating the wellbore from the troublesome formation and allow the removal of the original completion string and install a new redesigned one. The process helped putting the wells back on production with-out the need to stimulate any of them. This helped client to reduce the overall workover cost by 40% and proved to be successful and efficient to complete the required operation in a time-efficient. The operator had 4 wells with OH sections ranging from 40-80m which were completed in the late 1990's with no production packer. To preserve wellbore integrity the completion string needed to be pulled and replaced by a string with production packer and DH gauges. Visco-Elastic Surfactant (VES) and calcium CaCO3 (carbonate) used ubiquitously in field operations were tested for optimal design to fill highly fractured OH without damaging formation. Caliper logs were not available, and the presence of natural fractures posed a challenge to calculate the actual OH volume. A system was developed to carry the CaCO3 into the wellbore in stages and slickline was employed to measure fill after each stage. Once the OH was filled with CaCO3 and well would support a fluid column coil tubing was used to place an acid-soluble cement plug in the short interval between casing shoe and end of tubing (6-9m). The paper describes the optimization process followed to tune the CaCO3 pads composition, gel composition, mixing and placement technique. The first well in the campaign required more than 10 times the theoretical volume of CaCO3 to fill the open hole with multiple settling issues at surface. It was concluded the surfactant gel was likely carrying the CaCO3 into the fractures. The procedure was modified to tie in a line of breaker solution to the well head allowing sufficient viscosity of the fluid to carry the CaCO3 from surface but immediately lose viscosity and allow the CaCO3 to settle in the open hole without being carried into the formation. Specific coil tubing procedures were employed to allow the setting of ultra-short acid soluble cement plugs (<6m). All wells were successfully isolated to allow the safe workover of the completion string and returned to production with no loss of gas flow, with-out the need to stimulate after the work over. The campaign exhibited a new method of employing existing technologies to achieve the objective in a highly challenging and relatively new oilfield of Kurdistan. The campaign also demonstrated the benefit, in terms of saving time and cost because of extensive pre-execution planning.
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Yuan, Fuping, and Vikas Prakash. "Dynamic Slip Resistance at Metal-on-Metal Interfaces." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15383.

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In the present study plate-impact pressure-shear friction experiments were employed to investigate dynamic slip resistance and time-resolved growth of molten metal films during dry metal-on-metal slip under extreme interfacial conditions. By employing tribo-pairs comprising hard tool-steel against relatively low melt-point metals such as 7075-T6 aluminum alloy, interfacial friction stress of up to 300 MPa and slip speeds of approximately 250 m/s have been achieved. These relatively extreme interfacial conditions are conducive to the development of molten metal films at the tribo-pair interface. A Lagrangian finite element code is developed to understand the evolution of the thermo-mechanical fields and their relationship to the observed slip response. The code accounts for dynamic effects, heat conduction, contact with friction, and full thermo-mechanical coupling. At temperatures below the melting point the material is described as an isotropic thermally softening elastic-viscoplastic solid. For material elements with temperatures in excess of the melt temperature a purely Newtonian fluid constitutive model is employed. The results of the hybrid experimental-computational study provide new insights into the thermoelastic-plastic interactions during high speed metal-on-metal slip. During the early part of friction slip the coefficient of kinetic friction is observed to decrease with increasing slip velocity. During the later part transition in interfacial slip occurs from dry metal-on-metal sliding to the formation of molten A1 films at the tribo-pair interface. Under these conditions the interfacial resistance approaches the shear strength of the molten aluminum alloy under normal pressures of approximately 1-4.5 GPa and shear strain rates of ~ 107 s-1. It is interesting to note that the dynamic shear resistance of molten metal films decreases from ~100 MPa to ~50 MPa when the initial slip velocities increase from ~100m/s to ~250 m/s. Scanning electron microscopy of the slip surfaces reveal molten aluminum to be smeared on the tribo-pair interface. Photo-micrographs of the cross-section of the 7075-T6 A1 alloy reveals a thin region of severe shearing deformation in close vicinity of the sliding surface. The shearing deformation manifests itself as severely deformed grains in the direction of the sliding.
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Kim, Jaehwan, Sang Yeol Yang, Min Hee Lee, Jung Hwan Kim, Zhijiang Cai, Joo Hyung Kim, and Kwang Sun Kang. "Cellulose Smart Material for Sensor, Actuator and MEMS Applications." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-381.

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Cellulose Electro-Active Paper (EAPap) has been discovered as a smart material that can be used as a sensor and actuator [1]. It has many advantages in terms of low voltage operation, light weight, low power consumption, low cost, biocompatibility and biodegradability. EAPap is made with cellulose paper coated with thin electrodes. EAPap shows a reversible and reproducible bending movement as well as longitudinal displacement under electric field. The out-of-plane bending deformation is useful for achieving flapping wings, micro-insect robots, and smart wall papers. On the other hand, in-plane strains, such as extension and contraction of EAPap materials are also promising for artificial muscle applications. The actuation principle of cellulose EAPap bending actuator is known to be a combination of piezoelectric effect and ion migration effect. This paper presents further investigation of cellulose EAPap for actuator, sensor and MEMS devices. Piezoelectricity is one of major actuating mechanism of cellulose EAPap. Cellulose is a complex anisotropic material. Aligning cellulose fibers in the fabrication process is a critical parameter to improve mechanical and electromechanical properties of EAPap such as stiffness, strength, piezoelectricity and so on. Cotton cellulose fibers are dissolved into a solution using NaOH/urea and DMAc/LiCl methods. In the later method, the dissolution and shaping of cellulose can be carried out by DMAc/LiCl. Cellulose pulp was mixed with lithium chloride (LiCl) and dehydrated by heating. After adding DMAc (N, N-dimethylacetamide) to the mixture, swell it in room temperature. By heating it a solution formation can be obtained. There are some issues on eliminating solvent and ions and regenerating a pure cellulose films. The material processing all about EAPap has been introduced [2, 3]. Wet drawn stretching method is used in the fabrication process of cellulose film to increase its mechanical and electromechanical properties. This wet-drawn cellulose EAPap is termed as Piezo-Paper. Cellulose EAPap material can be customized to satisfy the material requirement for specific applications. Piezo-Paper can be used for strain sensors, vibration sensors, ultrasonic transducers, SAW devices, speakers, microphones, stack actuators, bending actuators and MEMS devices. Figure 1 shows some applications. Piezoelectric charge constant of Piezo-Paper is 70 pC/N. Details of piezoelectric characteristics of Piezo-Paper and its applications are presented in this paper. Micro-fabrication on cellulose EAPap has many applications, for example, MEMS sensors, e-Paper, thin film transistor (TFT), and even microwave-driven EAPap actuator. To develop microwave-driven EAPap actuator, rectenna (rectifying antenna) has been developed [4]. Rectenna can rectify microwaves and feed dc power without wire. Thus, this technology has many applications. To fabricate the rectenna array on cellulose EAPap, micro patterning of metallic layer and Schottky diode fabrication were studied. The Schottky diode fabrication gives the possibility of TFT on cellulose sheet. Advancing from this technology, SAW (Surface Acoustic Wave) device fabrication for humidity sensor is possible. The devices fabrication along with the characterization and their demonstration will be shown. Cellulose EAPap technology will bring the dream of flying magic paper into real world in the near future.
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Reports on the topic "Latex Film Formation"

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Cecile, M. P., B. S. Norford, G. S. Nowlan, and T. T. Uyeno. Lower Paleozoic stratigraphy and geology, Richardson Mountains, Yukon (with stratigraphic and paleontological appendices). Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329454.

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The Richardson Trough was a rift basin on the southern margin of an ancestral Iapetus Ocean. It was part of a complex paleogeography that included at least two major rift basins on western Franklinian and northern Cordilleran continental shelves. This paleogeography included the Ogilvie Arch, Porcupine Platform, Blackstone 'supra-basin', Babbage Basin, Husky Lakes Arch, Richardson Trough, Mackenzie Arch, Lac des Bois Platform, and the White Mountains and Campbell uplifts. The Richardson Trough was the failed arm of a triple rift system that formed when an early Paleozoic Iapetus Ocean developed north of the trough. The Richardson Trough displays a classic 'steer's head' profile with two rift fill cycles. The first features late early to middle late Cambrian rifting and late late Cambrian to late Early Ordovician post-rift subsidence; the second, late Early Ordovician to early Silurian rifting and late early Silurian to early Middle Devonian post-rift subsidence. Lower Paleozoic strata exposed in the Richardson Trough range in age from middle Cambrian to early Middle Devonian and are similar to strata in their sister rift, the Misty Creek Embayment. Before this study, the stratigraphic units defined for the Richardson Trough were the Slats Creek Formation and the Road River Formation. Here, the Slats Creek Formation and a new Road River Group are recognized. In order, this group consists of the middle and/or late Cambrian to Early Ordovician Cronin Formation; the early Early Ordovician to latest early Silurian Mount Hare Formation; the early Silurian to late Silurian Tetlit Formation; and the late Silurian to early Middle Devonian Vittrekwa Formation. These Road River Group strata are unconformably overlain by the late Middle to Late Devonian Canol Formation (outcrop) and by the Early Devonian Tatsieta Formation (subsurface).
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