Academic literature on the topic 'Activation energy'

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Journal articles on the topic "Activation energy"

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Mercer, Kenneth L. "Activation Energy." Journal - American Water Works Association 111, no. 10 (2019): 2. http://dx.doi.org/10.1002/awwa.1374.

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Romanyshyn, Yuriy, Andriy Smerdov, and Svitlana Petrytska. "Energy Model of Neuron Activation." Neural Computation 29, no. 2 (2017): 502–18. http://dx.doi.org/10.1162/neco_a_00913.

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On the basis of the neurophysiological strength-duration (amplitude-duration) curve of neuron activation (which relates the threshold amplitude of a rectangular current pulse of neuron activation to the pulse duration), as well as with the use of activation energy constraint (the threshold curve corresponds to the energy threshold of neuron activation by a rectangular current pulse), an energy model of neuron activation by a single current pulse has been constructed. The constructed model of activation, which determines its spectral properties, is a bandpass filter. Under the condition of mini
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Skomski, R., R. D. Kirby, and D. J. Sellmyer. "Activation entropy, activation energy, and magnetic viscosity." Journal of Applied Physics 85, no. 8 (1999): 5069–71. http://dx.doi.org/10.1063/1.370093.

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Mirzaee, E., S. Rafiee, A. Keyhani, and Z. Emam-Djomeh. "Determining of moisture diffusivity and activation energy in drying of apricots." Research in Agricultural Engineering 55, No. 3 (2009): 114–20. http://dx.doi.org/10.17221/8/2009-rae.

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In this study, Fick’s second law was used as a major equation to calculate the moisture diffusivity for apricot fruit with some simplification. Drying experiments were carried out at the air temperatures of 40, 50, 60, 70, and 80°C and the drying air velocity of 1, 1.5 and 2 m/s. The experimental drying curves showed only a falling drying rate period. The calculated value of the moisture diffusivity varied from 1.7 × 10<sup>–10</sup> to 1.15 × 10<sup>–9</sup> m<sup>2</sup>/s for apricot fruit, and the value of activation energy ranged from 29.35 to 33.78 kJ/
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Chae, Heehong, and Jangwook Heo. "Evaluation of Environmental Characteristics in Reactor Cavity for Determination of PECS Activation Condition." Journal of Energy Engineering 32, no. 3 (2023): 36–44. http://dx.doi.org/10.5855/energy.2023.32.3.036.

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Kharkats, Yu I., and L. I. Krishtalik. "Medium reorganization energy and enzymatic reaction activation energy." Journal of Theoretical Biology 112, no. 2 (1985): 221–49. http://dx.doi.org/10.1016/s0022-5193(85)80284-8.

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Cahoon, J. R., and Oleg D. Sherby. "The activation energy for lattice." Metallurgical Transactions A 23, no. 9 (1992): 2491–500. http://dx.doi.org/10.1007/bf02658053.

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Alkhayat, Rabee B., Hala Nazar Mohammed, and Yasir Yahya Kassim. "The Impact of Laser on the Activation Energy and Sensitivity of CR-39 Detector." NeuroQuantology 20, no. 2 (2022): 113–18. http://dx.doi.org/10.14704/nq.2022.20.2.nq22077.

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The influence of laser radiation on bulk and etch rates, and as well detector sensitivity, before and after being irradiated with alpha particles at 5 MeV emitted from a 241Am source, are examined at different etching temperatures (65, 67, 69, 71, 73, 75, 77, 79 ,81, 83, and 85)C in this paper. A laser source with a wavelength of 480 nm and a pulse energy of 50 mJ/pulse at a repetition rate of 9 Hz was used to investigate the activation energy of a CR-39 polymer. The rates of bulk etch, Vb, and track etch, Vt, slightly increase with laser radiation. Whereas sensitivity decreases as temperatur
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Shchurin, K. V., and I. G. Panin. "To change the properties of magnetic fluids in an alternating magnetic field." Informacionno-technologicheskij vestnik 11, no. 1 (2017): 103–14. http://dx.doi.org/10.21499/2409-1650-2017-1-103-114.

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Provides an overview of magnetic fluids and their external activation methods weak energy impacts. Considered the physical basis of magnetic fuel activation with a view to change their molecular and nadmolekuljarnyh structures. A new design of magnetic liquid Activator Wednesday with a high rate of utilization of capacity. Shows comparative testing fuels combustion engine, resulting in significant increase recorded their energy and environmental performance after magnetic fuel activation. Considered a prerequisite applying magnetic rocket fuels activation.
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Otero, Toribio F., and Juana Mª García de Otazo. "Polypyrrole oxidation: Kinetic coefficients, activation energy and conformational energy." Synthetic Metals 159, no. 7-8 (2009): 681–88. http://dx.doi.org/10.1016/j.synthmet.2008.12.017.

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Dissertations / Theses on the topic "Activation energy"

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Clarke, Christopher. "Concrete shrinkage prediction using maturity and activation energy." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9561.

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Thesis (M.S.) -- University of Maryland, College Park, 2009.<br>Thesis research directed by: by Dept. of Civil and Environmental Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Lin, Yawei. "Spectroscopy of High Energy Ion-neutral Collisions." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19720.

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This research work focused on studying the emission spectroscopy produced from the high energy ion-molecule collision processes in mass spectrometry. The collision experiments are described and divided into 4 chapters (Chapter 3, 4, 5, 6).N2O+● is an ion of atmospheric importance. In chapter 3 the investigation of the collision between high translational energy (4-8 keV range) N2O+● ions and Helium target gas in mass spectrometry using collision induced emission (CIE) spectroscopy is described.In chapter 4, the collision-induced emission (CIE) spectra from 4-8 keV collisions between projectile
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Bien-Aime, Andre J. "Effect of Cement Chemistry and Properties on Activation Energy." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4439.

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The objective of this work is to examine the effect of cement chemistry and physical properties on activation energy. Research efforts indicated that time dependent concrete properties such as strength, heat evolution, and thermal cracking are predictable through the concept of activation energy. Equivalent age concept, which uses the activation energy is key to such predictions. Furthermore, research has shown that Portland cement concrete properties are affected by particles size distribution, Blaine fineness, mineralogy and chemical composition. In this study, four Portland cements were use
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Thridandapani, Raghunath Rao. "The Effect of Microwave Energy on Sintering." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/26864.

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Spent Nuclear Fuel (SNF) is a by-product of existing nuclear reactors; SNF consists of long-lived radioactive actinides which have an average half-life of several thousand years (e.g. Plutonium-239 with a half-life of 24,000 years, and Americium-243 with a half-life of 7,360 years). Several multinational organizations are making an attempt to extract the energetic value out of these nuclear stockpiles in order to minimize the risk of nuclear proliferation and reduce waste volume. The Inert Matrix Fuel (IMF) concept is being considered as an option to reuse the radioactive actinides present in
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Fanfarillo, Michael. "Activation of carbon dioxide and dioxygen in low-energy matrices." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236314.

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Albright, Eric V. B. "Activation energy of Douglas fir char gasification by carbon dioxide." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-10312009-020158/.

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Lasithiotakis, Michail Georgioy. "Irradiated graphite waste - stored energy." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/irradiated-graphite-waste--stored-energy(c93c7581-5273-4d30-a05b-2153b4c7cfaf).html.

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The cores of early UK graphite moderated research and production nuclear fission reactors operated at temperatures below 150°C. Due to this low temperature their core graphite contains significant amounts of stored (Wigner) energy that may be released by heating the graphite above the irradiation temperature. This exothermic behavior has lead to a number of decommissioning issues which are related to long term "safe-storage", reactor core dismantling, graphite waste packaging and the final disposal of this irradiated graphite waste. The release of stored energy can be modeled using kinetic mod
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Bevillon, Emile. "Etude théorique du matériau BaSnO₃, en tant que conducteur protonique pour électrolytes de piles à combustible." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2009. http://www.theses.fr/2009ECAP0039/document.

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Les travaux effectués ont consisté en une étude théorique du matériau BaSnO3 en tant que matériau conducteur protonique pour électrolytes de piles à combustible. Ces matériaux sont obtenus après un dopage aliovalent préalable qui génère des lacunes d'oxygène sur le sous-réseau d'oxygène du matériau. Ce matériau, placé en milieu humide va s'hydrater, c'est à dire que des molécules d'eau vont se dissocier au sein du matériau. La propriété principale souhaitée pour de tels matériaux est la conductivité protonique. Celle-ci dépend du nombre de porteurs de charges (les hydrogènes ou protons apporté
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Amer, Elhadi M. "Thermal analysis and kinetic studies of the decomposition of some high performance polymers." Thesis, University of Salford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272943.

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Mereddy, Sandeep Reddy. "Adaptive algorithms for sensor activation in renewable energy-based sensor systems." Thesis, Wichita State University, 2009. http://hdl.handle.net/10057/2505.

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Future sensor networks would comprise of sensing devices with energy harvesting capabilities from renewable energy sources such as solar power. A key research question in such sensor systems is to maximize the asymptotic event detection probability achieved in the system, in the presence of energy constraints and uncertainties. This thesis focuses on the design of adaptive algorithms for sensor activation in the presence of uncertainty in the event phenomena. Ideas from increase/decrease algorithms used in TCP congestion avoidance are applied to design an online and adaptive activation algorit
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Books on the topic "Activation energy"

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Varada, Raj Subramanium, Walker K. P, and United States. National Aeronautics and Space Administration., eds. Stress versus temperature dependent activation energies in creep. NASA, 1990.

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Ahluwalia, V. K. Alternate energy processes in chemical synthesis: Microwave, ultrasonic, and photo activation. Alpha Science International Ltd., 2008.

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Nilsson, Daniel. Energy transfer in molecular collisions: Statistical theory of activation and deactivation in gas phase. Göteborg University, 2007.

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Nilsson, Daniel. Energy transfer in molecular collisions: Statistical theory of activation and deactivation in gas phase. Göteborg University, 2007.

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Uhl, Marianne. Chakra energy massage: Spiritual evolution into the subconscious through activation of the energy points of the feet. Lotus Light Publications,U.S., 1995.

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Agency, International Atomic Energy, ed. Market potential for non-electric applications of nuclear energy. International Atomic Energy Agency, 2002.

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Agency, International Atomic Energy, ed. Market potential for non-electric applications of nuclear energy. International Atomic Energy Agency, 2002.

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Bansal, Narottam P. Influence of several metal ions on the gelation activation energy of silicon tetraethoxide. National Aeronautics and Space Administration, 1989.

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Center, NASA Glenn Research, ed. The oxidation kinetics of continuous carbon fibers in a cracked ceramic matrix composite. National Aeronautics and Space Administration, Glenn Research Center, 2001.

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Agency, International Atomic Energy, ed. Nuclear analytical techniques in archaeological investigations. International Atomic Energy Agency, 2003.

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Book chapters on the topic "Activation energy"

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Gooch, Jan W. "Activation Energy." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_221.

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Cleaves, Henderson James. "Activation Energy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_25.

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Cleaves, Henderson James. "Activation Energy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_25.

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Cleaves, Henderson James. "Activation Energy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-642-27833-4_25-4.

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Cleaves, Henderson James. "Activation Energy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_25.

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Gooch, Jan W. "Activation Energy." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_13050.

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Cleaves, Henderson James. "Activation Energy." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_25-3.

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Di Felice, Renzo. "Intrinsic Activation Energy." In Encyclopedia of Membranes. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-44324-8_1292.

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Felice, Renzo Di. "Intrinsic Activation Energy." In Encyclopedia of Membranes. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40872-4_1292-3.

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Struchtrup, Henning. "Activation of Reactions." In Thermodynamics and Energy Conversion. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43715-5_24.

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Conference papers on the topic "Activation energy"

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Johannsen, Lucas, Claus Kestel, Timo Vogt, and Norbert Wehn. "Dynamic Path Activation for Energy-Efficient List Decoding." In 2025 14th International ITG Conference on Systems, Communications and Coding (SCC). IEEE, 2025. https://doi.org/10.1109/ieeeconf62907.2025.10949113.

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Corsetti, Edoardo, and Vincenzo Casamassima. "Flexibility Activation from Multi-Energy Systems Controlled by Timed Automata." In 2024 IEEE International Conference on Environment and Electrical Engineering and 2024 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). IEEE, 2024. http://dx.doi.org/10.1109/eeeic/icpseurope61470.2024.10751083.

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Yang, M. Z. "Measurement Method for High-Energy Gamma Radiation Based on Copper Activation." In 2024 IEEE International Conference on Plasma Science (ICOPS). IEEE, 2024. http://dx.doi.org/10.1109/icops58192.2024.10626731.

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McPherson, J. W. "Stress Dependent Activation Energy." In 24th International Reliability Physics Symposium. IEEE, 1986. http://dx.doi.org/10.1109/irps.1986.362105.

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Laviron, Pauline, Xueqi Dai, Bérénice Huquet, and Themis Palpanas. "Electricity Demand Activation Extraction." In e-Energy '21: The Twelfth ACM International Conference on Future Energy Systems. ACM, 2021. http://dx.doi.org/10.1145/3447555.3464865.

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Park, Se-Hwan, Taek-Joong Jung, Young-Seong Ji, Wan-Ki Park, Tai-Yeon Ku, and In-Seuk Lee. "Energy Prosumer Industry Activation Issues." In 2021 International Conference on Electronics, Information, and Communication (ICEIC). IEEE, 2021. http://dx.doi.org/10.1109/iceic51217.2021.9369716.

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Rencsok, Charles. "Activation energy required with classroom computers." In CHI98: ACM Conference on Human Factors and Computing Systems. ACM, 1998. http://dx.doi.org/10.1145/286498.286519.

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Manayam, J., M. Manickam, J. A. Preece, R. E. Palmer, and A. P. G. Robinson. "Low activation energy fullerene molecular resist." In SPIE Advanced Lithography, edited by Clifford L. Henderson. SPIE, 2009. http://dx.doi.org/10.1117/12.814088.

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Badicu, L. V., L. M. Dumitran, P. V. Notingher, R. Setnescu, and T. Setnescu. "Mineral oil lifetime estimation using activation energy." In 2011 IEEE 17th International Conference on Dielectric Liquids (ICDL). IEEE, 2011. http://dx.doi.org/10.1109/icdl.2011.6015463.

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Lin, Michael, Simone Silvestri, Novella Bartolini, and Thomas La Porta. "Energy-Efficient Selective Activation in Femtocell Networks." In 2015 IEEE 12th International Conference on Mobile Ad Hoc and Sensor Systems (MASS). IEEE, 2015. http://dx.doi.org/10.1109/mass.2015.16.

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Reports on the topic "Activation energy"

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Sita, Lawrence. Investigation of Energy-Efficient Dinitrogen Activation and N-atom Transfer Processes. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1149037.

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Rusby, D. Active Activation Diagnostics for High Energy X-ray and Neutron Measurements. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1829582.

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Betley, Theodore A. Early Career: Catalyst design for small molecule activation of energy consequence Final Report. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1427472.

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Collins, Terrence J., and Colin Horwitz. Energy Efficient Catalytic Activation of Hydrogen peroxide for Green Chemical Processes: Final Report. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/834329.

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Chou, Y. S., M. M. Stackpoole, and R. Bordia. Apparent activation energy of subcritical crack growth of SiC/SiC composites at elevated temperatures. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/114943.

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Basler, Christopher F. Optimization of Assays to Assess Dendritic Cell Activation and/or Energy in Ebola Infection. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada554501.

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Franke, J., M. O. Liedke, P. Dahmen, et al. Influence of coating structure of an SiOx barrier coating on a PET substrate on water vapor permeation activation energy. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.nn.1.

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The application of plasma polymerized silicon-based coatings on plastic substrates is an effective way to adjust the permeability of the substrate. However, the permeation mechanisms are yet not fully understood. Here, the activation energy of permeation can offer valuable insights. In order to understand how the activation energy of permeation depends on the coating structure, five silicon-based coatings with varying oxygen content were analyzed, which led to property modifications ranging from silicon-oxidic to silicon-organic. Positron annihilation spectroscopy was employed to characterize
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Chen, J. C. A distributed activation energy model of heterogeneous coal ignition. Technical progress report, January 1--March 31, 1995. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/113914.

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Chen, J. C. A distributed activation energy model of heterogeneous coal ignition. Technical progress report, April 1-- June 30, 1995. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/113915.

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Chen, J. C. A distributed activation energy model of heterogeneous coal ignition. Final report, September 1, 1994--August 31, 1995. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/212743.

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