Academic literature on the topic 'Donor-Acceptor Chromophores'

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Journal articles on the topic "Donor-Acceptor Chromophores"

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Qian, Gang, та Zhi Yuan Wang. "Design, synthesis, and properties of benzobisthiadiazole-based donor–π–acceptor–π–donor type of low-band-gap chromophores and polymers". Canadian Journal of Chemistry 88, № 3 (2010): 192–201. http://dx.doi.org/10.1139/v09-157.

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A novel low-band-gap chromophore (5, 0.86 eV) having fluorene as a donor, benzobisthiadiazole (BBTD) as an acceptor, and pyrrole as a π-spacer was successfully designed and synthesized, to probe the effect of π-spacer on the band-gap level of the donor–π–acceptor–π–donor type of chromophores. Compared with the thiophene spacer analogue (in compound 3), the intramolecular hydrogen bonding between the pyrrole and the neighboring BBTD unit pushes the absorption maximum and fluorescence emission of chromophore 5 into the near-infrared spectral region with a red shift of 172 and 158 nm, respectivel
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Cong, Shengyu, Airui Zhang, Fenggang Liu та ін. "Improving poling efficiency by synthesizing a nonlinear optical chromophore containing two asymmetric non-conjugated D–π–A chains". RSC Advances 5, № 14 (2015): 10497–504. http://dx.doi.org/10.1039/c4ra12656d.

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ZHANG, CHAO-ZHI, HUI CAO та ZHAO-BING GUO. "NONLINEAR OPTICAL PROPERTIES OF NOVEL AND EFFECTIVE H-SHAPED CHROMOPHORES CONTAINING THREE PARALLEL AND NON-CONJUGATED D-π-A UNITS". Journal of Nonlinear Optical Physics & Materials 20, № 03 (2011): 327–39. http://dx.doi.org/10.1142/s021886351100611x.

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H-shaped chromophores containing three parallel non-conjugated D-π-A units are effective chromophores with high hyperpolarizability and good optical transparency. The semi-empirical methods ZINDO, AM1, MNDO and PM3 were employed to study the effect of strength of acceptors and donors, and steric repulsion between substituents on static first hyperpolarizabilities (β0) and enhancements of β0 of the H-shaped chromophores. The results show that the H-shaped chromophore would exhibit the largest β0 and/or the largest enhancement of β0 of the chromophore when combination of a donor (D) and an accep
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Cekli, Seda, Russell W. Winkel, Erkki Alarousu, Omar F. Mohammed та Kirk S. Schanze. "Triplet excited state properties in variable gap π-conjugated donor–acceptor–donor chromophores". Chemical Science 7, № 6 (2016): 3621–31. http://dx.doi.org/10.1039/c5sc04578a.

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Kim, HunSoo, SeungHoi Kim, and SooYoul Park. "The Study of Donor-Acceptor Chromophores and Diketopyrrolopyrrole(DPP) Analogues." Journal of the Korean Society of Tribologists and Lubrication Engineers 32, no. 5 (2016): 141–46. http://dx.doi.org/10.9725/kstle.2016.32.5.141.

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Shimada, Masaki, Mizuho Tsuchiya, Ryota Sakamoto, et al. "Bright Solid-State Emission of Disilane-Bridged Donor-Acceptor-Donor and Acceptor-Donor-Acceptor Chromophores." Angewandte Chemie International Edition 55, no. 9 (2016): 3022–26. http://dx.doi.org/10.1002/anie.201509380.

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Shimada, Masaki, Mizuho Tsuchiya, Ryota Sakamoto, et al. "Bright Solid-State Emission of Disilane-Bridged Donor-Acceptor-Donor and Acceptor-Donor-Acceptor Chromophores." Angewandte Chemie 128, no. 9 (2016): 3074–78. http://dx.doi.org/10.1002/ange.201509380.

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Andersson, Asbjørn Sune, François Diederich, and Mogens Brøndsted Nielsen. "Acetylenic tetrathiafulvalene-dicyanovinyl donor-acceptor chromophores." Organic & Biomolecular Chemistry 7, no. 17 (2009): 3474. http://dx.doi.org/10.1039/b909886k.

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Castex, M. C., C. Olivero, G. Pichler, D. Adès, E. Cloutet, and A. Siove. "Photoluminescence of donor–acceptor carbazole chromophores." Synthetic Metals 122, no. 1 (2001): 59–61. http://dx.doi.org/10.1016/s0379-6779(00)01362-x.

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Lewis, Frederick D. "DNA photonics." Pure and Applied Chemistry 78, no. 12 (2006): 2287–95. http://dx.doi.org/10.1351/pac200678122287.

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Short DNA duplexes can be stabilized by the presence of organic chromophores, which serve as hairpin linkers or end-capping groups. Capped hairpins possessing one or more base pairs form stable folded structures in aqueous solution. Increasing the number of base pairs separating the two chromophores increases both the distance between the two chromophores and the dihedral angle between their electronic transition dipoles. Thus, duplex DNA can serve as a helical scaffold for the study of electronic interactions between two chromophores. Three types of electronic interaction have been investigat
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Dissertations / Theses on the topic "Donor-Acceptor Chromophores"

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Spitler, Eric Lewis 1980. "Structure-property relationships in conjugated donor/acceptor-functionalized arylacetylenes and dehydrobenzoannulenes." Thesis, University of Oregon, 2008. http://hdl.handle.net/1794/8095.

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xx, 361 p. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.<br>Highly conjugated carbon-rich molecules have attracted interest in recent years due to unique electronic, optical and materials properties. Carbon networks based upon the phenylacetylene subunit are increasingly recognized as building blocks for a host of sensing and electronics components due to the rigidity and linearity of carbon-carbon triple bonds. Further extending this motif into a macrocycle, generating a dehydrobenzoannulene (DBA), also confe
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Buker, Nicholas D. "Guanidine donors in nonlinear optical chromophores /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/8669.

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Browning, Charles. "Diimine(dithiolate)platinum(ii) Chromophores: Synthesis, Spectroscopy, and Material Applications." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc699877/.

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A series of 28 square-planar dithiol(diimine)platinum(II) chromophoric complexes have been synthesized, characterized, and evaluated for potential efficacy in sensitization of solid state photovoltaic devices to the near-infrared regions of the electromagnetic spectrum. The effect of molecular stacking in the solid state and self-association in solution are shown to influence spectral, electronic, and magnetic properties of the chromophores. Such properties are investigated in the pure form and as partners in donor-acceptor charge transfer adducts. Finally, selected chromophores have been inco
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Kinayyigit, Solen. "Platinum (II) charge transfer chromophores electrochemistry, photophysics, and vapochromic sensing applications /." Bowling Green, Ohio : Bowling Green State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1182802954.

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Hagberg, Daniel. "Synthesis of Organic Chromophores for Dye Sensitized Solar Cells." Doctoral thesis, KTH, Organisk kemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10547.

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This thesis deals with development and synthesis of organic chromophores for dye sensitized solar cells. The chromophores are divided into three components; donor, linker and acceptor. The development of efficient organic chromophores for dye sensitized solar cells starts off with one new organic chromophore, D5. This chromophore consists of a triphenylamine moiety as an electron donor, a conjugated linker with a thiophene moiety and cyanoacrylic acid as an electron acceptor and anchoring group. Alternating the donor, linker or acceptor moieties independently, would give us the tool to tune th
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Carré, Victor. "Association de la catalyse photorédox organique et de la chimie supramoléculaire : application à la fonctionnalisation de liaisons C−H." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0242.

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Le radical Cl• (atome de chlore) est un réactif bien connu et puissant pour abstraire les atomes d’hydrogène de liaisons C(sp3)−H, incluant celle du méthane. Les développements récents de la catalyse photoredox ont montré que Cl• peut-être généré efficacement par photo-oxydation de l’ion chlorure, bien que nécessitant l’utilisation de catalyseurs photorédox dont les états excités sont très oxydants. L’objectif de la thèse est de développer un système photocalytique performant et recyclable pour la fonctionnalisation des alcanes, et notamment du méthane. Pour ce faire, une catalyse duale combin
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Flynn, John J. "Optimizing the Discovery and Processability of Biologically Derived Molecular Glass Host Materials for Photonic Applications." University of Dayton / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1588192751503223.

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Karlsson, Karl Martin. "Design, Synthesis and Properties of Organic Sensitizers for Dye Sensitized Solar Cells." Doctoral thesis, KTH, Kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33190.

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This thesis gives a detailed description of the design and synthesis of new organic sensitizers for Dye sensitized Solar Cells (DSCs). It is divided in 7 chapters, where the first gives an introduction to the field of DSCs and the synthesis of organic sensitizers. Chapters 2 to 6 deal with the work of the author, starting with the first publication and the other following in chronological order. The thesis is completed with some concluding remarks (chapter 7). The DSC is a fairly new solar cell concept, also known as the Grätzel cell, after its inventor Michael Grätzel. It uses a dye (sensitiz
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Chuang, Hui-Chun, and 莊惠鈞. "Fluorescence Red-Shifting of GFP-like Chromophores by Enhancing Electronic Donor-Acceptor Strength." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/41877398951983439586.

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碩士<br>國立臺灣大學<br>化學研究所<br>104<br>Meta-Amino substituted green fluorescence protein chromophores (GFPc) such as m-DMABDI display strong fluorescence in non-polar aprotic solvent (Φf = 0.46 in n-Hex)as a result of “meta-amino substituent effect” but undergo fluorescence quehching in protic solvents due to solvent–solute H-bond interactions. This type of chromophore has been applied on bioimaging, which showed green fluorescence in human mammary epithelial cells.However, fluorescent dyes with green emission maybe interfered by autofluorescence of biological sample. In order to avoid this probleme,
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Sarkalya, Ashish Kr. "Studies on switching of J and H aggregates in Donor-Acceptor molecular materials." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/5125.

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The aggregation of molecular materials plays a central role in determining their functional properties. In the aggregated state, conjugated chromophores may exhibit enhanced emission, in comparison to their dilute solution. The studies described in this thesis is aimed towards understanding the dynamic behaviour of aggregates (H and J type) in donor-acceptor based -conjugated chromophores. We discuss the synthesis and characterization of three diketopyrrolopyrrole (DPP) based chromophores and their optical properties in solution and thin fi lm. The H and J type aggregates were identi
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Book chapters on the topic "Donor-Acceptor Chromophores"

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Wróbel, Danuta, and Bolesław Barszcz. "Quantum Dot and Fullerene with Organic Chromophores as Electron-Donor-Acceptor Systems." In Challenges and Advances in Computational Chemistry and Physics. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01355-4_3.

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Bartkowiak, Wojciech. "Solvatochromism and Two-Photon Absorption of Donor-Acceptor Organic Chromophores." In Recent Progress in Computational Sciences and Engineering (2 vols). CRC Press, 2006. http://dx.doi.org/10.1201/b12066-116.

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Kwon, Ohyun, Dali Sun, Chuang Zhang, and Z. Valy Vardeny. "Magnetic Field Effect in Organic Light-Emitting Diodes Based on Electron Donor–Acceptor Exciplex Chromophores." In World Scientific Reference on Spin in Organics. WORLD SCIENTIFIC, 2018. http://dx.doi.org/10.1142/9789813230194_0010.

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Bhalekar, Sulochana, Archana Bhagwat, and Nagaiyan Sekar. "3 Fluorescent styryl chromophores with rigid (pyrazole) donor and rigid (benzothiophenedioxide) acceptor – complete density functional theory (DFT), TDDFT and nonlinear optical study." In Computational Chemistry. De Gruyter, 2021. http://dx.doi.org/10.1515/9783110682045-003.

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Conference papers on the topic "Donor-Acceptor Chromophores"

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Ermer, Susan, Doris S. Leung, Steven M. Lovejoy, John F. Valley, and Marc Stiller. "Photobleachable Donor-Acceptor-Donor Chromophores with Enhanced Thermal Stability." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wc.2.

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An important step in the realization of active optical interconnects is the development of poled electro-optic (EO) polymer materials stable to both manufacturing and end-use environments. These environments vary according to process and ultimate application, but many require longterm thermal stability to 125 °C and short excursions to 250 °C or higher.1 Our efforts with EO polymers have been directed toward thermally stable waveguide devices2 and polyimide-based guest-host material systems.3 We recently demonstrated a proof-of-principle all-polyimide triple stack Mach-Zehnder based on DCM (4-
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Ranon, Peter M., Yongqiang Shi, William H. Steier, Chenzeng Xu, Bo Wu, and Larry R. Dalton. "Second-order nonlinear optical properties and thermal stability of the amino-sulfone chromophore containing polymers." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wa.3.

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The second-order nonlinear optical (NLO) properties of azo compounds containing amino-donor and sulfone-acceptor groups have been reported by several research groups.1 Their studies demonstrated that these amino-sulfone chromophores have a sizable nonlinearity and can be functionalized at both ends of the molecule for either polymerization or crosslinking. In this paper, we report our study of several side chain and main chain polymers which focused on anchoring both ends of the chromophores within a polymer matrix to improve the thermal stability of the molecular alignment. In particular, we
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Ruiz Delgado, M. Carmen, Juan Casado, Víctor Hernández, et al. "NLO properties of dithienothiophene-based chromophores: a comparison study between the donor/donor and donor/acceptor substitution patterns." In Photonic Devices + Applications, edited by Jean-Michel Nunzi. SPIE, 2007. http://dx.doi.org/10.1117/12.733723.

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Wasielewski, Michael R., David M. Tiede, and Harry A. Frank. "Ultrafast Electron and Energy Transfer in Reaction Center and Antenna Proteins from Photosynthetic Bacteria." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/up.1986.wb2.

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The recent crystal structure of the reaction center protein from Rps. viridis reveals that a BChl b molecule occupies a position between the primary (BChl b)2 donor, P960 and the BPheo b primary acceptor molecule. There is a great deal of uncertainty as to whether the primary acceptor in Rps. viridis is the intermediary BChl b, the BPheo b, or a supermolecule consisting of both of these chromophores.
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Chittibabu, K. G., L. Li, X. Wang, J. Kumar, and S. K. Tripathy. "Thiophene based Nonlinear Optical Chromophore functionalized Epoxy Polymers for Electro-Optic Applications." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/otfa.1997.thc.4.

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Polymeric materials present certain advantages over inorganic crystals for second-order nonlinear optical (NLO) applications because of their low dielectric constant, large optical nonlinearity, low cost, and ease of processability. Stable NLO polymeric materials are potential candidates for electro-optic (EO) devices such as high bandwidth electro-optic modulators [1], optical interconnects [2], and fiber optic gyros [3]. Second-order NLO properties in polymers are present when the chromophores are aligned in a non-centrosymmetric manner. Chromophores with enhanced NLO susceptibilities can be
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Meyers, Fabienne, Chin-Ti Chen, David Beljonne, Jean-Luc Brédas, and Seth R. Marder. "Electronic and Nonlinear Optical Properties of Organic Molecules: Assessment of the Influence of the Molecular Structure." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/otfa.1995.mc.3.

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In a previous work, using computational approaches, we analyzed how the polarizability, α, second-order polarizability, β, and third-order polarizability, γ, are controled by the ground state polarization [1-4]. To do so, we investigated the influence of an external, static electric field upon the nonlinear optical (NLO) properties, for a set of push-pull polyenes [1]. The calculated effect of the external electric field on the molecular structure and electronic properties of the chromophores is similar to that resulting from donor-acceptor substituents on a segment of the chromophore, or from
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Slepkov, Aaron D., Jeremiah A. Marsden, Jeremie J. Miller, et al. "The effects of donor-acceptor substitution symmetry on the nonlinear absorption of two-dimensionally-conjugated isomeric chromophores." In Optics & Photonics 2005, edited by A. Todd Yeates. SPIE, 2005. http://dx.doi.org/10.1117/12.617976.

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Shalin, N. I., O. D. Fominykh, A. A. Kalinin, and M. Yu Balakina. "Molecular modeling in design of nonlinear-optical polymer materials doped with indolizine chromophores with isolating groups in donor and acceptor moieties." In ACTUAL PROBLEMS OF ORGANIC CHEMISTRY AND BIOTECHNOLOGY (OCBT2020): Proceedings of the International Scientific Conference. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0069653.

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Hsu, Chia Chen, Sean Liu, Chen Chi Wang, and C. H. Wang. "Dispersion of the first hyperpolarizability of an azulenic donor-acceptor chromophore." In International Symposium on Optical Science and Technology. SPIE, 2000. http://dx.doi.org/10.1117/12.408507.

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Vos, Marten H., Fabrice Rappaport, Jean-Christophe Lambry, Christian Rischel, Jacques Breton, and Jean-Louis Martin. "The mechanisms of charge separation in bacterial reaction centers." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/up.1992.tud2.

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The mechanism of primary electron transport in photosynthetic reaction centers has received considerable recent attention. It is generally accepted that upon excitation an electron is transferred from a dimer-like bacteriochlorophyll donor P to a bacteriopheophytin electron acceptor HL in a time in the order of 1 ps, dependant on species and temperature. The question is how the protein/chromophore medium mediates this very fast transport, which spans about 17 Å. It is clearly outside of the range of classical non-adiabatic, pseudo-equilibrium electron transport theory.
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Reports on the topic "Donor-Acceptor Chromophores"

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Elliott, C. M. Photoinduced charge separation in linked donor-chromophore-acceptor systems. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/6567912.

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Elliott, C. M. Photoinduced charge separation in linked donor-chromophore-acceptor systems. Progress report, September 1, 1993--May 31, 1993. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10156289.

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[Photoinduced charge separation in linked donor-acceptor-chromophore systems]. Final report. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/564083.

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