Academic literature on the topic 'Smectique A'

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Journal articles on the topic "Smectique A"

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Oswald, P. "Fluage en cisaillement d'un smectique B." Journal de Physique 46, no. 7 (1985): 1255–62. http://dx.doi.org/10.1051/jphys:019850046070125500.

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COLLIN, D., J. L. GALLANI, and P. MARTINOTY. "COMPORTEMENT CRITIQUE DE LA VITESSE ET DE L'ATTÉNUATION DES ULTRASONS AU VOISINAGE D'UNE TRANSITION SMECTIQUE A - SMECTIQUE C." Le Journal de Physique IV 02, no. C1 (1992): C1–805—C1–808. http://dx.doi.org/10.1051/jp4:19921176.

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Oswald, P. "Modèle de couplage entre les défauts et un écoulement parallèle aux couches dans un smectique A." Journal de Physique 47, no. 6 (1986): 1091–96. http://dx.doi.org/10.1051/jphys:019860047060109100.

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Barbarin, F., J. P. Chausse, and J. P. Germain. "Modélisation du comportement conformationnel moléculaire dans un mélange de deux cristaux liquides thermotropes en phases nématique et smectique B." Journal de Physique 51, no. 14 (1990): 1553–67. http://dx.doi.org/10.1051/jphys:0199000510140155300.

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Oswald, P. "Fluage d'un smectique B hexatique : lien entre la viscosité élongationnelle dans le plan des couches et la longueur de corrélation ξ //". Journal de Physique 47, № 8 (1986): 1279–83. http://dx.doi.org/10.1051/jphys:019860047080127900.

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Le Calvez, A., S. Montant, E. Freysz, R. Maleck-Rassoul, and A. Ducasse. "Analyse femtoseconde et picoseconde de la rotation des molécules de cristaux liquides en phase smectique A autour de leur grand axe." Annales de Physique 20, no. 5-6 (1995): 613–14. http://dx.doi.org/10.1051/anphys:199556037.

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Hillier, S. "Mafic phyllosilicates in low-grade metabasites. Characterization using deconvolution analysis — discussion." Clay Minerals 30, no. 1 (1995): 67–73. http://dx.doi.org/10.1180/claymin.1995.030.1.07.

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AbstractAny X-ray diffraction (XRD) pattern of mixed-layered maximum R1 ordered chlorite-smectite has an exact equivalent R0 smectite-corrensite or R0 chlorite-corrensite. The identification of a mineral as chlorite (0.8)-smectite R1 is, therefore, not evidence that the fundamental layers in such an interstratified structure are actually chlorite and smectite. Furthermore, there are no obvious differences between XRD patterns of R0 and R1 chlorite-smectite at high or low smectite contents. Therefore the frequently supposed identification of R0 chlorite-smectite with high smectite contents is a
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Matsushita, Junichi, Seong Ho Yang, and Geum Chan Hwang. "Absorption and Preservation of Bentonite Containing Smectite." Materials Science Forum 569 (January 2008): 241–44. http://dx.doi.org/10.4028/www.scientific.net/msf.569.241.

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The Na-bentonite with contained smectite was fabricated in order to observe their absorption and preservation about water. Absorption of fabricated specimens in the water and preservation of absorbed samples in the drying machine at 323 K was measured. It was obtained that absorption had been decreasing with increasing smectite. Absorption of As-received Na-bentonite was higher than absorption of As-received smectite. The preservation has been also decreased with increasing smectite was obtained. Na-bentonite with contained smectite were investigated the good absorption and preservation when t
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Koh, S. M., M. S. Song, and T. Takagi. "Mineralogy, chemical characteristics and stabilities of Cetylpyridinium-exchanged smectite." Clay Minerals 40, no. 2 (2005): 213–22. http://dx.doi.org/10.1180/0009855054020167.

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AbstractCP (Cetylpyridinium)-exchanged smectite was manufactured by the cationic exchange reaction of Na-smectite with CP. The adsorption behaviour shows a typical L-type isotherm representing continuous and stable adsorption in excess of twice the cation exchange capacity of CP. CP-smectite shows a strong interlayer (d001) expansion to 40.2 Å when an amount of CP equivalent to 140% of the CEC is exchanged into smectite. CP-smectite is characterized by strong alkalinity (pH 9.3), low swelling (4.5 ml/2 g), low viscosity (3.9 mPa s), and strong and fast flocculation. These characteristics are i
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Dong, Hailiang, Donald R. Peacor, and Robert L. Freed. "Phase relations among smectite, R1 illite-smectite, and illite." American Mineralogist 82, no. 3-4 (1997): 379–91. http://dx.doi.org/10.2138/am-1997-3-416.

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Dissertations / Theses on the topic "Smectique A"

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Collin, Dominique. "Etude expérimentale de l'hydrodynamique non-conventionnelle des phases smectiques et des effets critiques associés à la transition smectique-A-smectique-C." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376040308.

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Melo, Hurtado Francisco. "Dynamique de l'interface smectique A-smectique B en solidification directionnelle." Lyon 1, 1991. http://www.theses.fr/1991LYO10141.

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Ce travail presente une etude experimentale de l'interface smectique a-smectique b. Dans la premiere partie, nous etudions la forme d'equilibre d'un monocristal smectique b. Nous montrons qu'existent des orientations rugueuses, facettees et interdites. A l'aide du modele tlk (terrasse, ledge, kink) et de la construction de wulff, nous identifions et quantifions les proprietes de surface de cette interface a l'equilibre. En particulier, nous determinons l'energie libre de surface de la facette et l'energie libre des marches. Nous mettons aussi en evidence experimentalement l'instabilite d'herri
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Dupont, Laurent. "Etude expérimentale de la transition de phase smectique A-smectique C* ferroélectrique par couplage électronique." Bordeaux 1, 1990. http://www.theses.fr/1990BOR10627.

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Un montage experimental original a ete mis en uvre pour mesurer a la fois l'angle d'inclinaison et la polarisation p induites par un champ electrique dans un compose ferroelectrique. Ceci donne acces a 5 coefficients du developpement de landau pres de la transition ainsi qu'a la reponse en frequence de l'effet electroclinique. On a pu montrer que, sous reserve d'effectuer les experiences dans le regime lineaire, la theorie de type champ moyen rendait compte des observations et que d'autre part, la frequence de coupure des composes etudies etait inferieure au mhz
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Even, Catherine. "Vibrations d'une membrane smectique : rôle de la forme du contour." Phd thesis, Université Paris Sud - Paris XI, 1999. http://tel.archives-ouvertes.fr/tel-00006615.

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Grâce à leurs propriétés spécifiques (homogénéité de l'épaisseur, de la densité bidimensionnelle et de la tension), les films de cristaux liquides smectiques forment des membranes bidimensionnelles idéales obéissant à l'équation d'onde de Helmholtz, avec les conditions de Dirichlet au bord. Dans cette thèse, une nouvelle expérience a été mise au point, qui permet, pour un film tendu sur un contour donné, de mesurer non seulement son spectre de fréquences propres, mais aussi la forme géométrique des modes. Le rôle de la forme de la membrane a ainsi pu être analysé. On a commencé par étudier une
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EVEN, CATHERINE. "Vibration d'une membrane smectique : role de la forme du contour." Paris 11, 1999. http://www.theses.fr/1999PA112144.

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Grace a leurs proprietes specifiques (homogeneite de l'epaisseur, de la densite bidimensionnelle et de la tension) les films de cristaux liquides smectiques forment des membranes bidimensionnelles ideales obeissant a l'equation d'onde de helmholtz, avec les conditions de dirichlet au bord. Dans cette these, une nouvelle experience a ete mise au point, qui permet, pour un film tendu sur un contour donne, de mesurer non seulement son spectre de frequences propres, mais aussi la forme geometrique des modes. Le role de la forme de la membrane a ainsi pu etre analyse. On a commence par etudier une
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Castro-Roman, Francisco. "Phase smectique de membranes fluides décorées par des copolymères amphiphiles." Montpellier 2, 1999. http://www.theses.fr/1999MON20140.

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Nous nous sommes interesses au comportement de phase et aux proprietes elastiques d'une phase lamellaire lyotrope (constituee de chlorure de cetylpyridinium et d'octanol dans l'eau salee ou non) dont les bicouches sont decorees par des copolymeres amphiphiles. La principale methode experimentale utilisee est la diffusion des neutrons et des rayons x aux petits angles. Nous observons que l'integrite de la phase lamellaire hote est preservee sur un large domaine de concentration en surfactants et polymere. La couche de copolymeres modifie, d'une part, les proprietes elastiques de la membrane : (
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Sonntag, Philippe. "Etude experimentale de la dynamique de la transition nematique-smectique a." Université Louis Pasteur (Strasbourg) (1971-2008), 1996. http://www.theses.fr/1996STR13097.

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Cette these constitue la premiere etude detaillee des proprietes dynamiques de la transition nematique-smectique a effectuee a l'aide de techniques ultrasonores. Cette etude, realisee sur le terephthal-bis-p-p'-butylaniline (tbba), montre que la vitesse et l'attenuation ultrasonores presentent des effets critiques de grande amplitude, qui sont isotropes en phase nematique et anisotropes en phase smectique a. L'analyse de la partie critique de l'attenuation conduit aux conclusions suivantes: dans la phase nematique, le couplage quadratique entre les fluctuations du parametre d'ordre et l'onde u
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Hmine, Jamal. "Quelques propriétés physiques de cristaux liquides ferroélectriques : approche en thermodynamique et relaxation diélectrique d'un point multicritique smectique C torse - smectique A - cholestérique : effet électroclinique en phase cholestérique." Lille 1, 1991. http://www.theses.fr/1991LIL10061.

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Le travail concerne l'étude des propriétés physiques de cristaux liquides chiraux de synthèse récente qui présentent la phase smectique C* ferroélectrique. Deux séries composés ont été retenues pour leurs propriétés originales. Dans une première famille sont étudiées des anomalies dans la structure hélicoïdale de la Phase SC* de très larges variations et des inversions de torsion. Les modes diélectriques sont analysés: on vérifie une divergence, aux grands pas d'hélice, de l'amplitude et du temps de relaxation du mode de Goldstone; à la transition SC*-SA, malgré un caractère du premier ordre p
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Vadnais, Richard. "Origine moléculaire de la phase smectique C simulation, expérimentation, théorie et philosophie." Mémoire, Université de Sherbrooke, 2008. http://savoirs.usherbrooke.ca/handle/11143/4811.

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L'importance technologique des cristaux liquides se reflète dans leurs nombreuses applications répandues dans la vie quotidienne, principalement dans le domaine de l'affichage. Parmi les phases liquides cristallines, certaines sont plus intéressantes que d'autres au niveau des applications. La phase smectique C est l'une de celles-ci. Malheureusement, le développement de nouvelles molécules dotées de cette phase comporte une grande part d'essai-erreur. Ce travail vise l'amélioration de la compréhension des facteurs microscopiques qui mènent à l'apparition de la phase liquide cristalline smecti
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KRAUS, ISABELLE. "Etude des films librement suspendus de cristaux liquides thermotropes en phase smectique." Paris 11, 1995. http://www.theses.fr/1995PA112129.

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Les films librement suspendus de cristaux liquides thermotropes en phase smectique sont des systemes lamellaires de taille finie, parfaitement ordonnes, dont les couches, constituees par les molecules mesogenes, sont paralleles aux deux surfaces libres. Le film est tendu sur un cadre rectangulaire possedant deux bords mobiles. Il est raccorde a son support par un surplus de materiaux appele le menisque qui est un reservoir de molecules. Trois quantites caracterisent un film: le nombre de couches n, que l'on peut varier d'une quantite macroscopique (>2000) a seulement 2, la tension tau et le no
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Books on the topic "Smectique A"

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Breakwell, Iain Keith. Chemical modification of smectite clays. Aston University. Department of Chemical Engineering and Applied Chemistry, 1992.

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Bond, Stephen Peter. Interlamellar modification of smectite clays. Aston University. Department of Chemical Engineering and Applied Chemistry, 1991.

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Oscarson, D. W. On the smectite-to-illite reaction. AECL, Whiteshell Laboratories, 1993.

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Pusch, Roland. Microstructure of smectite clays and engineering performance. Taylor & Francis, 2006.

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N, Yong R., ed. Microstructure of smectite clays and engineering performance. Taylor & Francis, 2005.

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Agronomy, American Society of. Aflatoxin control: Safeguarding animal feed with calcium smectite. Edited by Soil Science Society of America. American Society of Agronomy and Soil Science Society of America, 2013.

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Kloprogge, Jacob Teunis. Pillared clays: Preparation and characterization of clay minerals and aluminum-based pillaring agents. Faculteit Aardwetenschappen der Rijksuniversiteit te Utrecht, 1992.

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Kaloga, Bokar. Le manteau kaolinique des plaines du centre-sud de la Haute-Volta: Dynamique et relation avec le manteau smectitique. Editions de l'ORSTOM, 1987.

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V, Mitchell I., and Commission of the European Communities. Directorate-General for Science, Research, and Development., eds. Pillared layered structures: Current trends and applications. Elsevier Applied Science, 1990.

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Skipp, Gary. X-ray diffraction studies of the <2-[mu]m fraction from the upper part of the Brushy Basin Member of the upper Jurassic Morrison Formation and the lower Cretaceous Burro Canyon Formation in the Four Corners area, Colorado. U.S. G.P.O., 1992.

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Book chapters on the topic "Smectique A"

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Ebina, Takeo. "Clay, Especially Smectite." In Strategic Development of High-Value-Added Composite Materials. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1707-1_4.

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Carvalho, Thamyres C., Camila N. Maggi, Margarita Bobadilla, E. Hildebrando, Roberto F. Neves, and Francisco R. Valenzuela-Diaz. "Ceramic Properties: Clay Smectite Synthetic." In The Minerals, Metals & Materials Series. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05749-7_49.

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Laird, David A. "Interactions Between Atrazine and Smectite Surfaces." In Herbicide Metabolites in Surface Water and Groundwater. American Chemical Society, 1996. http://dx.doi.org/10.1021/bk-1996-0630.ch008.

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Pusch, R. "Transport of Radionuclides in Smectite Clay." In Environmental Interactions of Clays. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-03651-8_2.

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Meunier, Alain, and Bruce Velde. "Dynamics of the Smectite-to-Illite Transformation." In Illite. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-07850-1_4.

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Pytte, A. M., and R. C. Reynolds. "The Thermal Transformation of Smectite to Illite." In Thermal History of Sedimentary Basins. Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-3492-0_8.

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Barnhisel, Richard I., and Paul M. Bertsch. "Chlorites and Hydroxy-Interlayered Vermiculite and Smectite." In SSSA Book Series. Soil Science Society of America, 2018. http://dx.doi.org/10.2136/sssabookser1.2ed.c15.

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Nicola, Bruna Pes, Katia Bernardo-Gusmão, and Anderson Joel Schwanke. "Smectite Clay Nanoarchitectures: Rational Design and Applications." In Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-36268-3_60.

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Matsushita, Junichi, Seong Ho Yang, and Geum Chan Hwang. "Absorption and Preservation of Bentonite Containing Smectite." In Eco-Materials Processing and Design IX. Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-472-3.241.

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Nicola, Bruna Pes, Katia Bernardo-Gusmão, and Anderson Joel Schwanke. "Smectite Clay Nanoarchitectures: Rational Design and Applications." In Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-11155-7_60-1.

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Conference papers on the topic "Smectique A"

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Wei, H., E. Roaldset, and M. Bjoroy. "Kinetics of smectite to illite conversion." In 55th EAEG Meeting. European Association of Geoscientists & Engineers, 1993. http://dx.doi.org/10.3997/2214-4609.201411836.

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Kruichak, Jessica, Carlos Lopez, Amanda Sanchez, Yifeng Wang, and George Bachand. "Microbially-Mediated Transformation of Smectite into Illite?." In Proposed for presentation at the American Geophysical Union Fall 2022 Meeting held December 11-16, 2022 in Chicago, Il. US DOE, 2022. http://dx.doi.org/10.2172/2006261.

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Ivanishin, Igor, Bradley Abell, and Hadi Nasrabadi. "Optimized X-Ray Diffraction Analysis Predicts the Swelling Potential of Shales." In SPE Eastern Regional Meeting. SPE, 2022. http://dx.doi.org/10.2118/211879-ms.

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Abstract The presence of expandable clay minerals within the reservoir and source rocks causes many issues over the life of the well. These include wellbore instability and increased mud losses during drilling operations, complications and decrease in production during and after hydraulic fracturing, etc. Existing standard laboratory test methods, e.g., capillary suction time test, do not adequately predict swelling potential. The present work provides the technique to determine the properties and quantify the concentration of expandable clay minerals, thus predicting the swelling potential of
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Guetni, Imane, Claire Marlière, and David Rousseau. "Chemical EOR in Low Permeability Sandstone Reservoirs: Impact of Clay Content on the Transport of Polymer and Surfactant." In SPE Western Regional Meeting. SPE, 2021. http://dx.doi.org/10.2118/200784-ms.

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Abstract Application of chemical enhanced oil recovery (C-EOR) processes to low-permeability sandstone reservoirs (in the 10-100 mD range) can be very challenging as strong retention and difficult in-depth propagation of polymer and surfactant can occur. Transport properties of C-EOR chemicals are particularly related to porous media mineralogy (clay content). The present experimental study aimed at identifying base mechanisms and providing general recommendations to design economically viable C-EOR injection strategies in low permeability clayey reservoirs. Polymer and surfactant injection co
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Perry, Sarah E., and Elizabeth B. Rampe. "IDENTIFYING PARTIALLY CHLORITIZED SMECTITE ON THE MARTIAN SURFACE." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-284168.

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Trník, Anton, Tomáš Húlan, Ján Ondruška, and Martin Keppert. "Differential scanning calorimetry of illite/smectite – CaCO3 mixtures." In CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2021 (CEST 2021). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0069599.

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Wilson, Siobhan, Maria L. Arizaleta, Bree Morgan, et al. "SMECTITE–CARBONATE–MICROBE INTERACTIONS IN THE CARBON CYCLE." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-383974.

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Kelch, Sabrina Estelle, and Ludmilla Aristilde. "Impact of Carbohydrate Structure on Hydrated Smectite Nanopore Dynamics." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1269.

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Fatimah, Is, and Septian P. Yudha. "Ag/ZnO-smectite as photocatalyst and antibacterial active material." In THE 2016 CONFERENCE ON FUNDAMENTAL AND APPLIED SCIENCE FOR ADVANCED TECHNOLOGY (CONFAST 2016): Proceeding of ConFAST 2016 Conference Series: International Conference on Physics and Applied Physics Research (ICPR 2016), International Conference on Industrial Biology (ICIBio 2016), and International Conference on Information System and Applied Mathematics (ICIAMath 2016). Author(s), 2016. http://dx.doi.org/10.1063/1.4953949.

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Pős, Peter, Ján Ondruška, Martin Keppert, and Anton Trník. "Directional thermal expansion of illite/smectite-waste glass mixtures." In INTELLIGENT BIOTECHNOLOGIES OF NATURAL AND SYNTHETIC BIOLOGICALLY ACTIVE SUBSTANCES: XIV Narochanskie Readings. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0151080.

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Reports on the topic "Smectique A"

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Leftwich, J. T. Jr. Relationship of shale dewatering and smectite dehydration to undercompaction occurrence. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/770670.

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Bish, D. L. Smectite dehydration and stability: Applications to radioactive waste isolation at Yucca Mountain, Nevada. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/60343.

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Giaquinta, D. M., L. Soderholm, S. E. Yuchs, and S. R. Wasserman. Speciation of uranium in surface-modified, hydrothermally treated, (UO{sub 2}){sup 2+}-exchanged smectite clays. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/515513.

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Leftwich, J. T. Jr. Relationship of shale dewatering and smectite dehydration to undercompaction occurrence. Final report, October 1995--September 1996. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/677051.

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Caritat, P. de, and U. Troitzsch. Towards a regolith mineralogy map of the Australian continent: a feasibility study in the Darling-Curnamona-Delamerian region. Geoscience Australia, 2021. http://dx.doi.org/10.11636/record.2021.035.

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Bulk quantitative mineralogy of regolith is a useful indicator of lithological precursor (protolith), degree of weathering, and soil properties affecting various potential landuse decisions. To date, no national-scale maps of regolith mineralogy are available in Australia. Catchment outlet sediments collected over 80% of the continent as part of the National Geochemical Survey of Australia (NGSA) afford a unique opportunity to rapidly and cost-effectively determine regolith mineralogy using the archived sample material. This report releases mineralogical data and metadata obtained as part of a
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Desbarats, A. J., and J. B. Percival. Hydrogeochemistry of mine tailings from a carbonatite-hosted Nb-REE deposit, Oka, Quebec, Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331256.

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Environmental impacts associated with the mining of carbonatite deposits are an emerging concern due to the demand for critical metals. This study investigates the chemistry of tailings seepage at the former Saint Lawrence Columbium mine near Oka, Québec, Canada, which produced pyrochlore concentrate and ferroniobium from a carbonatite-hosted Nb-REE deposit. Its objectives are to characterize the mineralogy of the tailings and their pore water and effluent chemistries. Geochemical mass balance modeling, constrained by aqueous speciation modeling and mineralogy, is then used to identify reactio
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