Academic literature on the topic 'Density'

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Journal articles on the topic "Density"

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Willey, Ronald R. "Designing Metallic Neutral Density Filters with Constant Optical Density Versus Wavelength." Space Science Journal 1, no. 2 (2024): 01–07. http://dx.doi.org/10.33140/ssj.01.02.08.

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Observations in space and on earth can be subject to wide dynamic ranges of light levels which may need to be controlled by neutral density filters. The optical density (OD) of neutral density (ND) filters made with single metal layers is often not very neutral or constant in OD versus wavelength over the wavelength band of interest. Photographers are the major users of quantities of ND filters, but there are many other applications for smaller numbers of ND filters. There are a limited number of publications on how to design metallic ND filters. It is shown here that designs of metal-dielectr
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Youssef, M. M. A. "Relationship between plant density and population density of Meloidogyne incognita on eggplant." Pakistan Journal of Nematology 37, no. 1 (2019): 21–24. http://dx.doi.org/10.18681/pjn.v37.i01.p21-24.

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De Koning, J. R. A., E. J. Bakker, and P. C. Rem. "Sorting of vegetable seeds by magnetic density separation in comparison with liquid density separation." Seed Science and Technology 39, no. 3 (2011): 593–603. http://dx.doi.org/10.15258/sst.2011.39.3.06.

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Shabat, Hafedh Ali, Khamael Raqim Raheem, and Wafaa Mohammed Ridha Shakir. "Blind Steganalysis Method Using Image Spectral Density and Differential Histogram Correlative Power Spectral Density." Journal of Image and Graphics 12, no. 1 (2024): 10–15. http://dx.doi.org/10.18178/joig.12.1.10-15.

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Recent research has demonstrated the success of employing neural networks for the purpose of detecting image tampering. Nevertheless, the utilization of reference-free steganalysis has become increasingly popular as a result of the challenges associated with obtaining an annotated dataset. This dataset is crucial for the classification process using neural networks, which aims to detect and identify instances of tampering. This paper introduces a robust approach to blind steganalysis, utilizing image spectral density and differential histogram correlative power spectral density. The proposed m
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Li, Jie, and Si Ming Tu. "Density-equicontinuity and Density-sensitivity." Acta Mathematica Sinica, English Series 37, no. 2 (2021): 345–61. http://dx.doi.org/10.1007/s10114-021-0211-2.

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Karhausen, L. R. "Incidence Density is no Density." Scandinavian Journal of Social Medicine 21, no. 1 (1993): 1–2. http://dx.doi.org/10.1177/140349489302100101.

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McWeeny, Roy. "Density functions and density functionals." Philosophical Magazine B 69, no. 5 (1994): 727–35. http://dx.doi.org/10.1080/01418639408240141.

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Ghosh, Malay, and Partha Sarker. "Density divergence and density convergence." Journal of Statistical Research 56, no. 1 (2023): 1–10. http://dx.doi.org/10.3329/jsr.v56i1.63943.

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Divergence between two distributions has been of statistical interest for more than a century, beginning with Karl Pearson with his famous chisquare test. The paper revisits some of the well-known density divergence measures, and studies their interrelationship. In addition, it is demonstrated how Scheffe’s pointwise density convergence implies convergence of distributions, based on different divergence measures. 
 Journal of Statistical Research 2022, Vol. 56, No. 1, pp. 1-10
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Norwood, O’Tar T. "Density." International Society of Hair Restoration Surgery 3, no. 3 (1993): 8.2–8. http://dx.doi.org/10.33589/3.3.0008.

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Jooris, Roland, Marco Antonio Campos, Stefaan van den Bremt, and John Irons. "Density." Sirena: poesia, arte y critica 2007, no. 1 (2007): 150–51. http://dx.doi.org/10.1353/sir.2007.0066.

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Dissertations / Theses on the topic "Density"

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Ucar, Egemen. "Ternary Nanocomposites Of High Density, Linear Low Density And Low Density Polyethylenes." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608446/index.pdf.

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In this study, the effects of organoclay loading, compatibilizer loading and polyethylene type on the morphology, rheology, thermal properties and mechanical properties of polyethylene/compatibilizer/organoclay nanocomposites were investigated. As compatibilizer, terpolymer of ethylene-methacrylate-glycidyl methacrylate (Lotader&reg<br>AX8900), as organoclay Cloisite&reg<br>15A were used. All samples were prepared by a co-rotating twin screw extruder, followed by injection molding. Considering ternary nanocomposites, highest impact strength results were obtained with 10% compatibilizer plus
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Smith, Alyson Rae. "Designing density." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28147.

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Abraham, Jose P. "Density dynamics: a holistic understanding of high density environments." Kansas State University, 2014. http://hdl.handle.net/2097/17308.

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Master of Regional and Community Planning<br>Department of Landscape Architecture/Regional and Community Planning<br>Jason Brody<br>Today, achieving higher residential densities is an integral part of most discussions on concepts such as sustainability, placemaking, smart growth and new urbanism. It is argued that high density environments can potentially improve quality of life through a range of social benefits. In attempting to achieve these benefits, often times, developments that provide more than a certain number of dwelling units are considered desirable and successful high-density deve
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FERRERO, PIETRO. "Scalar Filtered Mass Density Function for Variable-Density Flows." Doctoral thesis, Politecnico di Torino, 2012. http://hdl.handle.net/11583/2503979.

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Una metodologia denominata Scalar Mass Filtered Density Function (SFMDF) e’ stata uti- lizzata per condurre Large Eddy Simulation (LES) di flussi turbolenti con reazioni chimiche. La SFMDF descrive la distribuzione delle fluttuazioni di sottoscala delle concentrazioni delle specie chimiche e dell’entalpia. Il grande vantaggio della formulazione SFMDF risiede nel fatto che il termine sorgente che descrive l’effetto delle reazioni chimiche appare in forma chiusa e non deve essere modellato. Il metodo presentato in questa tesi di dottorato si basa sull’equazione di trasporto della SFMDF, che vien
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Morganti, Michele. "Sustainable density : form, built environment, energy = Densità sostenibile : forma, ambiente costruito, energia." Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/365041.

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This research aims at exploring meanings, qualities and analytical abilities of density concept and its potential interpretations in architecture and sustainability fields. Despite the growing unsustainability of today's city facing an effective energy and environmental crisis, recent statistics have confirmed the increasing attractive power of metropolitan areas. Within the context of European compact city, new building models based on energy conservation principles account for an insignificant percentage compared to the great mass of existing city whose functioning remarkably affects the ine
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Helbig, Nicole. "Orbital functionals in density-matrix- and current-density-functional theory." [S.l.] : [s.n.], 2006. http://www.diss.fu-berlin.de/2006/442/index.html.

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Oliver, Matthew. "Density, temperature and magnetic field measurements in low density plasmas." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:df217453-1e10-4684-beb7-83c1bcecf285.

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Low density plasmas are found throughout the known universe. Therefore, accurate diagnostic methods have implications for our understanding of a variety of topics, ranging from star formation to the semi conductor industry. Low density plasmas are ubiquitous in the material processing industry. However, measurements of the electron temperature and density, two of the most fundamental plasma properties, are not straightforward. In the laboratory, we create a low density, radio frequency, helium plasma with a bi-Maxwellian electron distribution, similar to those found in the semiconductor proces
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Hultgren, Kristoffer. "Cosmological Density Perturbations." Thesis, Karlstad University, Faculty of Technology and Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-925.

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<p>This thesis presents a brief review of gravitation and cosmology, and then gives an overview of the theory of cosmological perturbations; subsequently some applications are discussed, such as large-scale structure formation. Cosmological perturbations are here presented both in the Newtonian paradigm and in two di¤erent relativistic approaches. The relativistic approaches are (i) the metric approach, where small variations of the metric tensor are considered, and (ii) the covariant approach, which focusses on small variations of the curvature. Dealing with these two approaches also involves
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Færevåg, Åshild. "Predicting Snow Density." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for matematiske fag, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-20666.

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Snow density is an important measure in hydrological applications. It is used to convert snow depth to the snow water equivalent (SWE). A model developed by Sturm et al. (2010) predicts the snow density by using snow depth, the snow age and a snow class defined by the location. In this work the model is extended to include seasonal weather variables and variables concerning the location. The model is tested and fitted for 4040 Norwegian snow depth and densities measurements in the period $1998-2011$. A Bayesian modeling framework is chosen. To do inference a Markov Chain Monte Carlo method wit
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Kelly, Frederick Alan. "Tokamak density limits." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16628.

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Books on the topic "Density"

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McBride, R. A. Soil degradation risk indicator: Soil compaction component. Agriculture and Agri-Food Canada, 1997.

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Kekarainen, Pertti. Density. Voges and Deisen Gallery, 2001.

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Erdahl, Robert, and Vadene H. Smith, eds. Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7.

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S, MacLean Alex, ed. Visualizing density. Lincoln Institute of Land Policy, 2007.

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Kirk, Andy. Density Plot. SAGE Publications, Ltd., 2016. http://dx.doi.org/10.4135/9781529776812.

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Johnson, Erin R., ed. Density Functionals. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19692-3.

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Hilde, Heynen, and Vanderburgh David, eds. Inside density. Lettre volée, 2003.

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International Colloquium on Architecture and Cities. Inside density. La lettre volée, 2002.

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Bellingham School District No. 501 (Wash.). Density, buoyancy. The Schools, 1989.

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Kallarackal, Jose, and Fernando Ramírez. Wood Density. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-61030-1.

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Book chapters on the topic "Density"

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Löwdin, P. O. "A Tribute to A. John Coleman — The “Tame” Mathematician." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_1.

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Percus, J. K. "Griffiths Inequalities for Fermion Systems." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_10.

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Ruskai, Mary Beth. "Entropy of Reduced Density Matrices." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_11.

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Rosina, M., B. Golli, and R. M. Erdahl. "A Lower Bound to the Ground State Energy of a Boson System with Fermion Source." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_12.

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Larson, Everett G. "Reduced Density Operators, Their Related von Neumann Density Operators, Close Cousins of These, and their Physical Interpretation." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_13.

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Valdemoro, C. "Theory and Practice of the Spin-Adapted Reduced Hamiltonians (SRH)." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_14.

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Ludeña, Eduardo V. "Variational Principle with Built-In Pure State N-Representability Conditions. The N-Electron Case." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_15.

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Cohen, Leon. "Wigner Distributions as Representations of the Density Matrix." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_16.

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Thakkar, Ajit J., Anthony C. Tanner, and Vedene H. Smith. "Inter-Relationships Between Various Representations of One-Matrices and Related Densities: A Road Map and An Example." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_17.

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Zaremba, E. "Current Problems in Density Functional Theory." In Density Matrices and Density Functionals. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3855-7_18.

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Conference papers on the topic "Density"

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Desport, Olivier, and John Crowe. "Improved Density Processing for LWD Density." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2006. http://dx.doi.org/10.2118/102404-ms.

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Lalazissis, G. A. "Density-dependent covariant energy density functionals." In NUCLEAR STRUCTURE AND DYNAMICS 2012. AIP, 2012. http://dx.doi.org/10.1063/1.4764244.

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Akhlaghi-Bouzan, Milad, and Aristide Dogariu. "Computational Optical Density-Density Correlation Sensing." In CLEO: Science and Innovations. OSA, 2015. http://dx.doi.org/10.1364/cleo_si.2015.sth3o.7.

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Besov, Y. "Multiple Beam Klystrons." In High energy density microwaves. AIP, 1999. http://dx.doi.org/10.1063/1.59034.

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McDermott, D. B., A. T. Lin, Y. Hirata, S. B. Harriet, Q. S. Wang, and N. C. Luhmann. "High power harmonic gyro-TWT amplifiers in mode-selective circuits." In High energy density microwaves. AIP, 1999. http://dx.doi.org/10.1063/1.59035.

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Arman, M. Joseph. "High efficiency long pulse gigawatt sources of HPM radiation." In High energy density microwaves. AIP, 1999. http://dx.doi.org/10.1063/1.59022.

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Bearzatto, C., A. Beunas, and G. Faillon. "Long pulse and large bandwidth multibeam klystron." In High energy density microwaves. AIP, 1999. http://dx.doi.org/10.1063/1.59000.

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Smithe, David N., Mike Bettenhausen, Larry Ludeking, G. Caryotakis, Daryl Sprehn, and Glenn Scheitrum. "3-D simulations of multiple beam klystrons." In High energy density microwaves. AIP, 1999. http://dx.doi.org/10.1063/1.59001.

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Yaogen, Ding, Peng Jun, Zhu Yunshu, and Shi Shaoming. "Theoretical and experimental research on multi-beam klystron." In High energy density microwaves. AIP, 1999. http://dx.doi.org/10.1063/1.59002.

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Haimson, J., B. Mecklenburg, G. Stowell, K. E. Kreischer, and I. Mastovsky. "Preliminary performance of the MKII 17 GHz traveling wave relativistic klystron." In High energy density microwaves. AIP, 1999. http://dx.doi.org/10.1063/1.59003.

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Reports on the topic "Density"

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Mattsson, Ann Elisabet, Normand Arthur Modine, Michael Paul Desjarlais, Richard Partain Muller, Mark P. Sears, and Alan Francis Wright. Beyond the local density approximation : improving density functional theory for high energy density physics applications. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/976954.

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Diebold, Francis, Todd Gunther, and Anthony Tay. Evaluating Density Forecasts. National Bureau of Economic Research, 1997. http://dx.doi.org/10.3386/t0215.

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Haigh, R. E., G. F. Jacobson, and S. Wojtczuk. High density photovoltaic. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/572620.

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Danos, Michael. Irreducible density matrices. National Bureau of Standards, 1985. http://dx.doi.org/10.6028/nbs.ir.85-3270.

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Cantrell, Olivia, Rene Reifarth, Aaron Couture, and Andrew Cooper. Carbon Block Density. Office of Scientific and Technical Information (OSTI), 2024. http://dx.doi.org/10.2172/2406679.

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Mogliani, Matteo, and Florens Odendahl. Density forecast transformations. Banco de España, 2025. https://doi.org/10.53479/38959.

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The common choice of using a direct forecasting scheme implies that the individual predictions ignore information on their cross-horizon dependence. However, this dependence is needed if the forecaster has to construct, based on direct density forecasts, predictive objects that are functions of several horizons (e.g. when constructing annual-average growth rates from quarter-on-quarter growth rates). To address this issue we propose using copulas to combine the individual h-step-ahead predictive distributions into one joint predictive distribution. Our method is particularly appealing to those
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Fermi Research Alliance. High Density Chip Interconnect Technology Using High Density Glass Interposers. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1569232.

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Carroll, Jay, Isaac A. Valdez, Todd Huber, Aron Robbins, and Brad Boyce. Sigma Labs Tensile Charpy Density Thermal Energy Density Results NMSBA Project. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1481519.

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Hofman, G. L. High density dispersion fuel. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/373920.

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Young, P., H. A. Baldis, P. Cheung, et al. Critical Density Interaction Studies. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/15013547.

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