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Relevant bibliographies by topics / Amorphous substances

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Academic literature on the topic 'Amorphous substances'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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Journal articles on the topic "Amorphous substances"

1

Antosik, Agata, Joanna Szafraniec, Krzysztof Niwiński, and Renata Jachowicz. "Amorphous drug substances." Farmacja Polska 74, no. 11 (November 30, 2018): 671–78. http://dx.doi.org/10.32383/farmpol/118638.

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Wang, Bo, and Yuan Ming Song. "Study on the Difference of Amorphous Substances of Coal Ashes." Advanced Materials Research 287-290 (July 2011): 1189–92. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.1189.

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There is much difference among the amorphous substances of different coal ashes, the important basis for their utilization. The micromorphology and content of the amorphous substances were measured by scanning electron microscopy (SEM) and chemical method respectively, and the 28d compressive strength ratio was also used to characterize their contribution to the cement-coal ashes system. The results show that the amorphous substances of BFBC/CFBC ashes are irregular and loose textured, which are significantly different from those of PC fly ashes that are spherical and compact. The content and

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Shklovskii, V. A., and V. M. Kuz'menko. "Explosive crystallization of amorphous substances." Uspekhi Fizicheskih Nauk 157, no. 2 (1989): 311. http://dx.doi.org/10.3367/ufnr.0157.198902c.0311.

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Shklovskiĭ, V. A., and V. M. Kuz'menko. "Explosive crystallization of amorphous substances." Soviet Physics Uspekhi 32, no. 2 (February 28, 1989): 163–80. http://dx.doi.org/10.1070/pu1989v032n02abeh002681.

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Webster, Gregory K., Cynthia A. Pommerening, Whitney W. Harman, Mathew A. Gragg, Jian-Hwa Han, and Daniel J. Taylor. "Exploiting Kinetic Solubility Differences for Low Level Detection of Crystallinity in Amorphous Drug Formulations." Current Pharmaceutical Analysis 16, no. 5 (June 15, 2020): 529–38. http://dx.doi.org/10.2174/1573412915666181210144338.

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Background: Enabling formulations have been implemented by the pharmaceutical industry as an effective tool for keeping Active Pharmaceutical Ingredient (API) in an amorphous state. Upon dosing in the amorphous state, many drugs which fail to demonstrate bioactivity due to the limited solubility and bioavailability of their crystalline form become bioavailable. Purpose: The analytical techniques use today for crystallinity detection are challenged by the sensitivity and robustness needed to achieve a 5% quantitation limit in low dose drug products. Our laboratory has developed a novel procedur

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Sheka, E. F. "Spectroscopy of amorphous substances with molecular structure." Uspekhi Fizicheskih Nauk 160, no. 2 (1990): 263. http://dx.doi.org/10.3367/ufnr.0160.199002c.0263.

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Sheka, E. F. "Spectroscopy of amorphous substances with molecular structure." Soviet Physics Uspekhi 33, no. 2 (February 28, 1990): 147–66. http://dx.doi.org/10.1070/pu1990v033n02abeh002546.

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Fratzl, P., G. Vogl, and S. Klaumünzer. "Small-angle scattering from porous amorphous substances." Journal of Applied Crystallography 24, no. 5 (October 1, 1991): 588–92. http://dx.doi.org/10.1107/s0021889890012225.

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Mikhailov, E., S. Vlasenko, S. T. Martin, T. Koop, and U. Pöschl. "Amorphous and crystalline aerosol particles interacting with water vapor – Part 1: Microstructure, phase transitions, hygroscopic growth and kinetic limitations." Atmospheric Chemistry and Physics Discussions 9, no. 2 (March 20, 2009): 7333–412. http://dx.doi.org/10.5194/acpd-9-7333-2009.

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Abstract. Interactions with water are crucial for the properties, transformation and climate effects of atmospheric aerosols. Here we outline characteristic features and differences in the interaction of amorphous and crystalline aerosol particles with water vapor. Using a hygroscopicity tandem differential mobility analyzer (H-TDMA), we performed hydration, dehydration and cyclic hydration&amp;dehydration experiments with aerosol particles composed of levoglucosan, oxalic acid and ammonium sulfate (diameters ~100–200 nm, relative uncertainties <0.4%, relative humidities <5% to 95% a

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Shimizu, Y., H. Sogabe, and Y. Terashima. "The effects of colloidal humic substances on the movement of non-ionic hydrophobic organic contaminants in groundwater." Water Science and Technology 38, no. 7 (October 1, 1998): 159–67. http://dx.doi.org/10.2166/wst.1998.0289.

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A controlled experimental study of the sorption of colloidal humic substances (humic acid) and a non-ionic hydrophobic organic compound (naphthalene) onto typical inorganic constituents of aquifer solids was performed using four types of model solid phases {i.e., individual model solids (montmorillonite, kaolinite, amorphous aluminosilicate gel, and amorphous iron oxides) and combined model solids (montmorillonite coated by amorphous aluminosilicate gel or iron oxides)}, which are synthesized in the laboratory. The batch experimental results indicated that the sorption of non-ionic hydrophobic

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Dissertations / Theses on the topic "Amorphous substances"

1

Atta-Fynn, Raymond. "Theory of localized electron states and novel structural modeling of amorphous silicon /." View abstract, 2005. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3203330.

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Punsalan, David Troy. "A sorption and dilation investigation of amorphous glassy polymers and physical aging." Access restricted to users with UT Austin EID, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3035168.

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Saito, Ichitaro. "Amorphous selenium photoelectric devices." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610017.

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Jiang, Yucheng, and 姜昱丞. "Magnetoresistance, photoconductivity and strain effect in the system of magnetically doped amorphous carbon." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208021.

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Gabriel, Margaret A. "Electronic defects in amorphous silicon dioxide /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/8553.

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Goldstein, Alexandra Susan. "Computer simulations of amorphous copper-zirconium /." Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/8629.

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Chieng, Heng Liang Norman, and n/a. "Amorphous drug preparation using ball milling." University of Otago. School of Pharmacy, 2008. http://adt.otago.ac.nz./public/adt-NZDU20081209.162001.

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Polymorphism and crystallinity are now recognised as important issues in drug development. This is shown by the increased amount of research in this area over recent years. In pharmaceutical development milling is an important unit operation for size reduction to improve powder handling, processing and dissolution rate. The aim of this thesis was to investigate the effect of ball milling (and cryo-milling) on the solid state properties, including amorphous drug formation, of pharmaceutical solids. Milling was carried out using an oscillatory ball mill (Mixer Mill MM301, Retsch GmbH & Co., Ge

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Chen, En-Tsung. "On the pressure formation of metallic glasses." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/17978.

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Brüning, Ralf. "Reversible structural relaxation in iron based metallic glasses." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65539.

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Lau, King Cheung. "Crystallization of amorphous alloy and the associated changes of properties." access abstract and table of contents access full-text, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?msc-ap-b21174453a.pdf.

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Thesis (M.Sc.)--City University of Hong Kong, 2005.<br>At head of title: City University of Hong Kong, Department of Physics and Materials Science, Master of Science in materials engineering & nanotechnology dissertation. Title from title screen (viewed on Sept. 1, 2006) Includes bibliographical references.

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Books on the topic "Amorphous substances"

1

Elliott, S. R. Physics of amorphous materials. 2nd ed. Burnt Mill, Harlow, Essex, England: Longman Scientific & Technical, 1990.

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Elliott, S. R. Physics of amorphous materials. 2nd ed. Harlow, Essex, England: Longman Scientific & Technical, 1990.

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Elliott, S. R. Physics of amorphous materials. Burnt Mill, Harlow, Essex, England: Longman Scientific & Technical, 1989.

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4

F, Thorpe M., and Tichý L. 1944-, eds. Properties and applications of amorphous materials. Dordrecht: Kluwer Academic Publishers, 2001.

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5

Kaneyoshi, Takahito. Introduction to amorphous magnets. Singapore: World Scientific, 1992.

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6

Silva, S. R. P. Properties of amorphous carbon. London: IEE, 2003.

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NATO Advanced Study Institute on Amorphous and Liquid Materials (1985 Passo della Mendola). Amorphous and liquid materials: (proceedings of the NATO Advanced Study Institute of 'Amorphous and Liquid Materials', Passo della Mendda (Trentino), Italy, August 26-Sept 7, 1985). Dordrecht: Nijhoff in cooperation with NATO Scientific Affairs Division, 1987.

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8

Minić, D. M. Amorfni materijali. Čačak: Tehnički fakultet, 2001.

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9

Feltz, Adalbert. Amorphous inorganic materials and glasses. Weinheim: VCH, 1993.

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10

Zallen, Richard. The physics of amorphous solids. New York: Wiley, 1998.

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Book chapters on the topic "Amorphous substances"

1

Lacks, Daniel J. "Energy Landscapes and Amorphous- Amorphous Transitions." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 481–90. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_36.

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Kelires, P. C. "Amorphous-Amorphous Phase Transitions in Elemental Group- IV Semiconductors." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 438–47. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_33.

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Degtyareva, V. F. "Amorphous Pressure-Induced Alloys." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 504–14. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_38.

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Lyapin, A. G., V. V. Brazhkin, E. L. Gromnitskaya, V. V. Mukhamadiarov, O. V. Stal’gorova, and O. B. Tsiok. "Kinetics and Non-Ergodic Nature of Amorphous-Amorphous Transformations under Pressure." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 448–68. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_34.

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Koverda, V. P., N. M. Boganov, and V. P. Skripov. "Explosive Crystallization of Amorphous Substances with Fixed Crystallites." In Growth of Crystals, 69–81. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3660-4_7.

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6

Klug, D. D., J. S. Tse, V. Shpakov, C. A. Tulk, I. Swainson, E. C. Svensson, and C. K. Loong. "Transformations, Dynamics, and Structures of Amorphous Ices." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 391–402. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_29.

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Pichler, H., and C. Schmitt-Riegraf. "Optically isotropic (also pseudo-cubic) minerals and amorphous substances." In Rock-forming Minerals in Thin Section, 35–53. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1443-8_5.

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Bording, J. K., J. E. Tibballs, and J. Tafto. "From Liquid to Amorphous Germanium by Molecular Dynamics." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 200–207. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_15.

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Malenkov, G. G. "Computer Simulation of Supercooled Water and Amorphous Ices." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 423–36. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_32.

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Kohl, I., T. Loerting, C. Salzmann, E. Mayer, and A. Hallbrucker. "High-Density Amorphous Ice and its Phase Transition to Ice XII." In New Kinds of Phase Transitions: Transformations in Disordered Substances, 325–33. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0595-1_24.

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Conference papers on the topic "Amorphous substances"

1

Imamura, Koreyoshi, K. Takeda, K. Yamamoto, H. Imanaka, and N. Ishida. "Thermal stability of amorphous sugar matrix, dried from methanol, as an amorphous solid dispersion carrier." In 21st International Drying Symposium. Valencia: Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/ids2018.2018.7716.

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Developing a technique to disperse hydrophobic ingredients homogeneously in a water-soluble solid matrix (solid dispersion) is one of the topics that have been extensively investigated in the pharmaceutical and food industries. Recently, we have devised a novel solid dispersion technique (surfactant-free solid dispersion), in which a preliminarily amorphized sugar was dissolved in an organic media containing hydrophobic component, without using any surface active substances, and then vacuum dried into the amorphous solid mixture [Food Chem., 197 (2016) 1136; Mol. Pharm., 14 (2017) 791]. In thi

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Xu, Yuting, Zhifang Wu, and Qiang Wang. "A Study on Radiation Imaging Mechanism and Characteristics in Different Inspection Systems." In 2021 28th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icone28-66127.

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Abstract Radiation imaging, as a key issue in nuclear technology, has received considerable attention in the industry. It is widely used in nuclear medicine, Customs supervision, and many other areas. The objective of this investigation is to get insight into the principle, operation characteristics and image characteristics of radiation imaging. In this paper, an investigation on radiation imaging is conducted on three main inspection systems for Customs supervision, including small X-ray inspection machine, CT baggage inspection system, and large container inspection system. The principle, o

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Murphy, Colm, Denis Kelliher, and John Davenport. "A Nonlinear Finite Element Inverse Approach to Characterize the Material Properties of Tracheal Cartilage: Preliminary Study." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19538.

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Tracheal cartilage is a form of hyaline cartilage. Mature hyaline cartilage is classified by miniature aggregations of chondrocytes implanted in an amorphous matrix of ground substance reinforced by collagen fibres designated as collagen type II. The adjacent layer, the perichondrium, consists of collagen fibers and spindle-shaped cells which are similar to fibroblasts. It has been determined that collagen is a nonlinear material[1], and consequently, tracheal cartilage is also nonlinear. Previous research on tracheal cartilage has treated the material as both linear and nonlinear[2].

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Ultarakova, А., N. Lokhova, and A. Yessengaziyev. "Silica removal from waste of ilmenite concentrate pyrometallurgical processing." In Challenges of Science. Institute of Metallurgy and Ore Beneficiation, Satbayev University, 2021. http://dx.doi.org/10.31643/2021.12.

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The article presents the study results for alkaline leaching of fine ilmenite concentrate dusts from electric smelting. The physical and chemical properties of the dusts were studied using chemical and instrumental analysis methods. The dust composition was determined, X-ray phase analysis showed that the dust sample substance is in the X-ray amorphous state, iron is present in the trivalent state, and silicon is bound to magnesium. The dust sample study using a scanning electron microscope showed that part of the titanium is bound in a hard-to-disclose anasovite encapsulated in amorphous sili

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Diaconescu, Emanuel N., Marilena L. Glovnea, and Ovidiu Petrosel. "A New Experimental Technique to Measure Contact Pressure." In STLE/ASME 2003 International Joint Tribology Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/2003-trib-0278.

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A new technique to measure the pressure in a real contact is proposed. One of contacting surfaces is covered, prior to contact establishment, by a special gel. The contact closing removes the excess gel and, during a certain time interval, the contact pressure transforms the entrapped substance in an amorphous solid. In each point, the refractive index of this solid depends on the pressure acting during transformation. After contact opening, the reflectivity of this coating depends on the former contact pressure and it is mapped by aid of a laser profilometer and becomes an indicator of contac

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Suhadi, Elena, Annisa Sylviana, Firman Kurniawansyah, Hikmatun Ni'mah, Himawan Tri Bayu Murti Petrus, Mahfud Mahfud, and Achmad Roesyadi. "Preparation of Sulfonated SiO<sub>2 </sub>Catalyst from Geothermal Sludge Waste for Sago Flour Hydrolysis." In 4th International Seminar on Fundamental and Application of Chemical Engineering. Switzerland: Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-8mzrwm.

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Catalyst is a substance that is widely used in chemical reactions to obtain certain products. This study has been focusing on preparing and employing solid catalyst derived from geothermal sludge (GS) as waste material from Dieng Geothermal Power Plant (PLTPB) activity. The methodology of catalyst preparation was extraction of silica from the sludge by alkali solution, followed by gelling formation and acidification with sulfuric acid solution. The prepared catalyst was then applied in hydrolysis reaction to convert sago flour into glucose.Catalyst properties were assessed in term of morpholog

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7

Asadizadeh, M., A. Hedayat, L. Tunstall, M. Taboada Neira, J. A. Vega González, and J. W. Verá Alvarado. "Mechanical Properties of Lightweight Aggregates Produced from Mine Tailings via Alkali-Activation." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0838.

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ABSTRACT This study investigated the production of lightweight aggregates (LWAs) from mine tailings (MTs) using an alkali activation approach. The main objective was to reduce the environmental and cost impacts of handling tailings while producing a useful material for the construction industry. The alkali activation process was used to activate the aluminum oxide and silicon dioxide in MTs to produce LWAs, which were then characterized for physical properties. A pelletization technique was practiced, using a disk granulator machine to spray a 10 M NaOH solution on the MTs with a liquid/solid

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