Academic literature on the topic 'Chemical structure'

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Journal articles on the topic "Chemical structure"

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Kovalskyi, Yaroslav, Volodymyr Dutka, Galyna Marshalok, Natalya Vytrykush, and Yosyp Yatchyshyn. "Quantum-Chemical Analysis of α-Alkylacroleins Structure." Chemistry & Chemical Technology 7, no. 1 (March 10, 2013): 1–4. http://dx.doi.org/10.23939/chcht07.01.001.

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Osadchuk, T. V., O. V. Shybyryn, and V. K. Kibirev. "Chemical structure and properties of low-molecular furin inhibitors." Ukrainian Biochemical Journal 88, no. 6 (December 14, 2016): 5–25. http://dx.doi.org/10.15407/ubj88.06.005.

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Lenz, Stephan, Johannes Birkenstock, Lennart A. Fischer, Willi Schüller, Hartmut Schneider, and Reinhard X. Fischer. "Natural mullites: chemical composition, crystal structure, and optical properties." European Journal of Mineralogy 31, no. 2 (June 7, 2019): 353–67. http://dx.doi.org/10.1127/ejm/2019/0031-2812.

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Barsky, Vadim, Gennady Vlasov, and Andriy Rudnitsky. "Composition and Structure of Coal Organic Mass. 3. Dinamics of Coal Chemical Structure During Metamorphism." Chemistry & Chemical Technology 5, no. 3 (September 15, 2011): 285–90. http://dx.doi.org/10.23939/chcht05.03.285.

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Opanasyuk, A. S. "The structure, phase and chemical composition of CZTSe thin films." Functional Materials 21, no. 2 (June 30, 2014): 164–70. http://dx.doi.org/10.15407/fm21.02.164.

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Paryanto, Paryanto, Sunu Herwi Pranolo, Ari Diana Susanti, Kristina Ratna Dewi, and Meydiana Rossari. "Chemical Structure of Mangrove Species Rhizophora stylosa as Natural Dyes." METANA 16, no. 1 (June 7, 2020): 33–38. http://dx.doi.org/10.14710/metana.v16i1.30417.

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Textile dyes are divided into two types, natural dyes and synthetic dyes. Natural dyes commonly made from extraction. Extraction is a process in which one or more components are separated selectively from a liquid or solid mixture, the feed, by means of a liquid immiscible solvent. Extraction can be classified into two group, liquid extraction and solid-liquid extraction. Solvents that are usually used in the extraction of natural dyes are aquades and ethanol. The purpose of this research was to determine the chemical structure, especially tannin in natural dyes from mangrove species Rhizophora stylosa through several samples testing natural dyes. Rhizophora stylosa that have been extracted and evaporated will conducted several tests to obtain chemical structures in natural dyes and yield of tannin in natural dyes. Tests carried out include testing FT-IR, and HPLC. Based on FT-IR analysis, the extraction of Rhizophora stylosa containing tannin indicated by the presence of hydroxyl (O-H) in the area of 3385.36 cm-1, aromatic (C-H) in the area of 1365.53 cm-1, carbonyl (C=O) in the area 1646.36 cm-1, esters (C-O) in the area 1217.30 cm-1. While tannin content obtained from the analysis of HPLC were 6.087 ppm.
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Perchiazzi, Natale, Ulf Hålenius, Pietro Vignola, and Nicola Demitri. "Gabrielsonite revisited: crystal-structure determination and redefinition of chemical formula." European Journal of Mineralogy 30, no. 6 (December 20, 2018): 1173–80. http://dx.doi.org/10.1127/ejm/2018/0030-2794.

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Sharp, Paul M., Matthew S. Dyer, George R. Darling, John B. Claridge, and Matthew J. Rosseinsky. "Chemically directed structure evolution for crystal structure prediction." Physical Chemistry Chemical Physics 22, no. 32 (2020): 18205–18. http://dx.doi.org/10.1039/d0cp02206c.

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The chemically directed structure evolution method uses chemical models to quantify the environment of atoms and vacancy sites in a crystal structure with that information used to inform how to modify the structure for crystal structure prediction.
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Masek, Brian B., Lingling Shen, Karl M. Smith, and Robert S. Pearlman. "Sharing Chemical Information without Sharing Chemical Structure." Journal of Chemical Information and Modeling 48, no. 2 (February 2008): 256–61. http://dx.doi.org/10.1021/ci600383v.

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Swan, G. A. "CHEMICAL STRUCTURE OF MELANINS." Annals of the New York Academy of Sciences 100, no. 2 (December 15, 2006): 1005–19. http://dx.doi.org/10.1111/j.1749-6632.1963.tb42947.x.

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Dissertations / Theses on the topic "Chemical structure"

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Thakur, Smita. "A viewer for chemical structure /." Leeds, 2001. http://www.leeds.ac.uk/library/counter2/compstmsc/20002001/thakur.doc.

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Walsh, Catherine. "The chemical structure of protoplanetary disks." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534583.

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Lyndin, M. "Chemical structure of breast cancer concrements." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/40562.

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The process of pathological biomineralization plays an important role in tumor growth morphogenesis. The role of heavy metal salts in pathological mineralization of breast cancer tissue should not be ruled out taking into consideration their ability to enter in covalent bonds with calcium salt molecules.
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Iida, Kenji. "Systematic understanding of chemical process in solution." 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/157607.

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Didsbury, Matthew Paul. "The influence of chemical structure of model epoxy networks on chemical resistance." Thesis, Durham University, 2014. http://etheses.dur.ac.uk/11009/.

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Structural differences in cross-linked epoxy networks from the use of different isomers (ortho-, meta- and para-) of disubstituted aromatic diglycidyl ethers can have a dramatic effect on the polymer properties. By changing the disubstitution from meta- to para- it has been shown that there is a direct correlation between the diffusion of gasses and the symmetry of related polymers. The aim of this work is to investigate the influence of the chemical structure of aromatic diglycidyl ethers on the ability of the resulting amine-cured epoxy polymer networks to adsorb organic solvents. Pure diglycidyl ethers based on hydroquinone and catechol, have been synthesised in high purity and good yields using a process previously developed at Durham University which utilise elemental fluorine to produce hypofluorous acid. The diglycidyl ether of resorcinol is commercially available and readily purified via vacuum distillation. Using the pure epoxides model networks have been produced by reacting the diglycidyl ethers with the diamine 4,4’-methylenebis(cyclohexylamine) to produce highly cross-linked films. Analytical techniques including DSC, DMTA, TGA, FTIR, solid state NMR, thermodynamic testing, PALs and density measurements have been used to investigate the influence of polymer structure on the network properties. With these materials we are determining the effect of the different epoxide isomers on the chemical resistance of the polymers. The results obtained for the polymers shows consistency with those suggested by the literature which is that the meta- polymer has the best chemical resistance with the other isomers having similar results.
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Jing, Pu. "Purple corn anthocyanins chemical structure, chemoprotective activity and structure/function relationships /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1155738398.

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Jing, Pu. "Purple corn anthocyanins: chemical structure, chemoprotective sctivity and structure/function relationships." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1155738398.

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Moscicki, Angelique (Angelique E. ). "ChemWARD : extracting chemical structure from printed diagrams." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/61299.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 117-118).
Over the years, a vast amount of literature in the field of chemistry has accumulated, and searching for documents about specific molecules is a formidable task. To the extent that the literature is textual, services like Google enable relatively easy search. While search indexes like Google are very good at finding such things, its difficult to describe molecules completely using text because text can't easily indicate molecular structure, and molecular structure defines chemical properties. ChemWARD is a system that extracts the molecular structure from the printed diagrams that are ubiquitous in chemistry literature and converts them to a machine readable format in order to allow chemists to search the literature by drawing a molecular structure instead of typing a chemical formula. We describe the architecture of the system and report on its performance, demonstrating its ability to achieve an overall accuracy rate of 85.5% on printed diagrams extracted from published chemical literature.
by Angelique Moscicki.
M.Eng.
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Robustelli, Paul. "Protein structure determination from NMR chemical shifts." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609027.

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Abildgaard, Jens. "Quantum chemical models in molecular structure elucidation /." Roskilde : Roskilde University, Department of Life Sciences and Chemistry, 1998. http://hdl.handle.net/1800/535.

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Books on the topic "Chemical structure"

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Company, Aldrich Chemical. Aldrich structure index. Milwaukee, WI: Aldrich Chemical Co., 1996.

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Warr, Wendy A., ed. Chemical Structure Information Systems. Washington, DC: American Chemical Society, 1989. http://dx.doi.org/10.1021/bk-1989-0400.

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De Montfort University. School of Applied Sciences, Department of Chemistry., ed. Spectroscopy and chemical structure. Leicester: De Montfort University, 1992.

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De Montfort University. School of Applied Sciences, Department of Chemistry., ed. Spectroscopy and chemical structure. Leicester: De Montfort University, 1992.

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De Montfort University. School of Applied Sciences, Department of Chemistry., ed. Spectroscopy and chemical structure. Leicester: De Montfort University, 1992.

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De Montfort University. School of Applied Sciences, Department of Chemistry., ed. Spectroscopy and chemical structure. Leicester: De Montfort University, 1992.

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De Montfort University. School of Applied Sciences, Department of Chemistry., ed. Spectroscopy and chemical structure. Leicester: De Montfort University, 1992.

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1943-, Formosinho Sebastião J., and Burrows Hugh, eds. Chemical kinetics: From molecular structure to chemical reactivity. Amsterdam: Elsevier, 2007.

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Arnaut, Luis G. Chemical kinectics: From molecular structure to chemical reactivity. Amsterdam, NL: Elsevier, 2006.

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Willett, Peter. Three-dimensional chemical structure handling. Taunton, Somerset, England: Research Studies Press, 1991.

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Book chapters on the topic "Chemical structure"

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Elias, Hans-Georg. "Chemical Structure." In Macromolecules, 7–40. D-69451 Weinheim, Germany: Wiley-VCH Verlag GmbH, 2014. http://dx.doi.org/10.1002/9783527627233.ch2.

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Lawson, Alexander J. "Chemical Structure Browsing." In ACS Symposium Series, 41–49. Washington, DC: American Chemical Society, 1989. http://dx.doi.org/10.1021/bk-1989-0400.ch004.

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Welford, Stephen M. "Chemical Structure Searching." In ACS Symposium Series, 64–79. Washington, DC: American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0436.ch005.

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Simos, T. E. "Atomic structure computations." In Chemical Modelling, 38–142. Cambridge: Royal Society of Chemistry, 2007. http://dx.doi.org/10.1039/9781847553317-00038.

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Meyer, Ernst, and Ehrhard Sens. "Systematic Drug Structure-Activity Evaluation/Correlation." In Chemical Structures, 235–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73975-0_24.

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Jochum, Clemens. "Building a Structure-Oriented Numerical Factual Database." In Chemical Structures, 187–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73975-0_19.

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Peeters, Marc, and Danny Verbinnen. "Multiplatform Chemical Structure Management." In Chemical Structures 2, 271–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78027-1_23.

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Farmer, Nick, John Amoss, William Farel, Jerry Fehribach, and Christian Zeidner. "The Evolution of the CAS Parallel Structure Searching Architecture." In Chemical Structures, 283–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73975-0_31.

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Goodwin, William. "Models of Chemical Structure." In Springer Handbook of Model-Based Science, 879–90. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-30526-4_40.

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Page, M. I. "Structure-activity relationships: chemical." In The Chemistry of β-Lactams, 79–100. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2928-2_2.

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Conference papers on the topic "Chemical structure"

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Bukhari, Syed Saqib, Zaryab Iftikhar, and Andreas Dengel. "Chemical Structure Recognition (CSR) System: Automatic Analysis of 2D Chemical Structures in Document Images." In 2019 International Conference on Document Analysis and Recognition (ICDAR). IEEE, 2019. http://dx.doi.org/10.1109/icdar.2019.00-41.

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Banik, Mandira, Sudeep Ghosh, Amrut Ranjan Jena, and Hrittika Maity. "Recognizing chemical structures drawn by hand using deep learning algorithms and predict probable chemical structure." In SECOND INTERNATIONAL CONFERENCE ON INNOVATIONS IN SOFTWARE ARCHITECTURE AND COMPUTATIONAL SYSTEMS (ISACS 2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0167028.

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Galego, Javier, Francisco J. Garcia-Vidal, and Johannes Feist. "Modifying chemical structure through cavity QED." In 2016 Progress in Electromagnetic Research Symposium (PIERS). IEEE, 2016. http://dx.doi.org/10.1109/piers.2016.7735066.

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"Polypyrazolylborate complexes of the lanthanides: structure, optics and materials." In Chemical technology and engineering. Lviv Polytechnic National University, 2021. http://dx.doi.org/10.23939/cte2021.01.105.

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Venkatesu, Pannuru. "Influence of ammonium ionic liquids on structure and stability of myoglobin." In Annual International Conference on Chemistry, Chemical Engineering and Chemical Process. Global Science & Technology Forum (GSTF), 2013. http://dx.doi.org/10.5176/2301-3761_ccecp.03.

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Yacob, Abdul Rahim, Zareen Sofia Onn, and Siti Balkiah Ismail. "Structure Elucidation of Sildenafil Analogues Fragmentation by Liquid Chromatograph Tandem Mass Spectrometer." In Annual International Conference on Chemistry, Chemical Engineering and Chemical Process. Global Science & Technology Forum (GSTF), 2013. http://dx.doi.org/10.5176/2301-3761_ccecp.56.

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Mastalygina, E. E., I. A. Varyan, N. N. Kolesnikova, T. V. Monakhova, S. G. Karpova, and A. A. Popov. "Effect of chemical composition and dimensional parameters of natural filler on structure formation and physical-chemical properties of polyethylene composites." In ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Author(s), 2016. http://dx.doi.org/10.1063/1.4966443.

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Chatterjee, Sajib, Resheta Ahmed Smrity, and Md Rafiqul Islam. "Protein structure prediction using chemical reaction optimization." In 2016 19th International Conference on Computer and Information Technology (ICCIT). IEEE, 2016. http://dx.doi.org/10.1109/iccitechn.2016.7860217.

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Yang, Jufeng, Kai Wang, and Guangshun Shi. "Structure-based recognition of handwritten chemical operators." In 2010 8th World Congress on Intelligent Control and Automation (WCICA 2010). IEEE, 2010. http://dx.doi.org/10.1109/wcica.2010.5554336.

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Fei, Hongliang, and Jun Huan. "Structure feature selection for chemical compound classification." In 2008 8th IEEE International Conference on Bioinformatics and BioEngineering (BIBE). IEEE, 2008. http://dx.doi.org/10.1109/bibe.2008.4696655.

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Reports on the topic "Chemical structure"

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Colson, Steven D., and Robin S. McDowell. Annual Report 1998. Chemical Structure and Dynamics. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/1007382.

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Colson, S. D. Chemical structure and dynamics. Annual report 1994. Office of Scientific and Technical Information (OSTI), July 1995. http://dx.doi.org/10.2172/114611.

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Colson, Steve D., and Rod S. McDowell. Annual Report 2000. Chemical Structure and Dynamics. Office of Scientific and Technical Information (OSTI), April 2001. http://dx.doi.org/10.2172/789905.

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Colson, S. D., and R. S. McDowell. Chemical structure and dynamics: Annual report 1996. Office of Scientific and Technical Information (OSTI), March 1997. http://dx.doi.org/10.2172/471434.

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Colson, Steven D., and Robin S. McDowell. Annual Report 2000. Chemical Structure and Dynamics. Office of Scientific and Technical Information (OSTI), April 2001. http://dx.doi.org/10.2172/1004842.

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Colson, Steven D., and Roy E. Gephart. Annual Report 2002. Chemical Structure & Dynamics. Office of Scientific and Technical Information (OSTI), January 2003. http://dx.doi.org/10.2172/971118.

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Colson, S. D., and R. S. McDowell. Chemical Structure and Dynamics annual report 1997. Office of Scientific and Technical Information (OSTI), March 1998. http://dx.doi.org/10.2172/658244.

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Colson, S. D. Chemical structure and dynamics: Annual report 1993. Office of Scientific and Technical Information (OSTI), July 1994. http://dx.doi.org/10.2172/10187596.

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SD Colson and RS McDowell. Annual Report 1998: Chemical Structure and Dynamics. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/6667.

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Colson, S. D., and R. S. McDowell. Chemical structure and dynamics. Annual report 1995. Office of Scientific and Technical Information (OSTI), May 1996. http://dx.doi.org/10.2172/266892.

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