Academic literature on the topic 'Chemical clocks'

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Journal articles on the topic "Chemical clocks"

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McEwen, J. S., P. Gaspard, T. V. de Bocarme, and N. Kruse. "Nanometric chemical clocks." Proceedings of the National Academy of Sciences 106, no. 9 (2009): 3006–10. http://dx.doi.org/10.1073/pnas.0811941106.

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Okamoto-Uchida, Yoshimi, Akari Nishimura, Junko Izawa, Atsuhiko Hattori, Nobuo Suzuki, and Jun Hirayama. "The Use of Chemical Compounds to Identify the Regulatory Mechanisms of Vertebrate Circadian Clocks." Current Drug Targets 21, no. 5 (2020): 425–32. http://dx.doi.org/10.2174/1389450120666190926143120.

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Circadian clocks are intrinsic, time-tracking processes that confer a survival advantage on an organism. Under natural conditions, they follow approximately a 24-h day, modulated by environmental time cues, such as light, to maximize an organism’s physiological efficiency. The exact timing of this rhythm is established by cell-autonomous oscillators called cellular clocks, which are controlled by transcription–translation negative feedback loops. Studies of cell-based systems and wholeanimal models have utilized a pharmacological approach in which chemical compounds are used to identify molecu
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Wilhelm, Stefan, and Otto S. Wolfbeis. "Opto-chemical micro-capillary clocks." Microchimica Acta 171, no. 3-4 (2010): 211–16. http://dx.doi.org/10.1007/s00604-010-0456-4.

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Uehara, Takahiro N., Yoshiyuki Mizutani, Keiko Kuwata, et al. "Casein kinase 1 family regulates PRR5 and TOC1 in the Arabidopsis circadian clock." Proceedings of the National Academy of Sciences 116, no. 23 (2019): 11528–36. http://dx.doi.org/10.1073/pnas.1903357116.

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The circadian clock provides organisms with the ability to adapt to daily and seasonal cycles. Eukaryotic clocks mostly rely on lineage-specific transcriptional-translational feedback loops (TTFLs). Posttranslational modifications are also crucial for clock functions in fungi and animals, but the posttranslational modifications that affect the plant clock are less understood. Here, using chemical biology strategies, we show that the Arabidopsis CASEIN KINASE 1 LIKE (CKL) family is involved in posttranslational modification in the plant clock. Chemical screening demonstrated that an animal CDC7
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Harms, A. A., and O. E. Hileman. "Chemical clocks, feedback, and nonlinear behavior." American Journal of Physics 53, no. 6 (1985): 578. http://dx.doi.org/10.1119/1.14242.

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Andrieux, David, and Pierre Gaspard. "Fluctuation theorem and mesoscopic chemical clocks." Journal of Chemical Physics 128, no. 15 (2008): 154506. http://dx.doi.org/10.1063/1.2894475.

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Gaspard, Pierre. "The correlation time of mesoscopic chemical clocks." Journal of Chemical Physics 117, no. 19 (2002): 8905–16. http://dx.doi.org/10.1063/1.1513461.

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Espinoza-Rojas, Francisca, Julio Chanamé, Paula Jofré, and Laia Casamiquela. "The Consistency of Chemical Clocks among Coeval Stars." Astrophysical Journal 920, no. 2 (2021): 94. http://dx.doi.org/10.3847/1538-4357/ac15fd.

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Moya, A., L. M. Sarro, E. Delgado-Mena, W. J. Chaplin, V. Adibekyan, and S. Blanco-Cuaresma. "Stellar dating using chemical clocks and Bayesian inference." Astronomy & Astrophysics 660 (April 2022): A15. http://dx.doi.org/10.1051/0004-6361/202141125.

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Context. Dating stars is a major challenge with a deep impact on many astrophysical fields. One of the most promising techniques for this is using chemical abundances. Recent space- and ground-based facilities have improved the quantity of stars with accurate observations. This has opened the door for using Bayesian inference tools to maximise the information we can extract from them. Aims. Our aim is to present accurate and reliable stellar age estimates of FGK stars using chemical abundances and stellar parameters. Methods. We used one of the most flexible Bayesian inference techniques (hier
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Panzarasa, Guido, and Eric R. Dufresne. "Temporal Control of Soft Materials with Chemical Clocks." CHIMIA International Journal for Chemistry 74, no. 7 (2020): 612. http://dx.doi.org/10.2533/chimia.2020.612.

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Dissertations / Theses on the topic "Chemical clocks"

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Lee, Ho-Hsin. "Gas-phase chemical models of interstellar molecular clouds /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487948440824473.

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Wilkins, Anna Katharina. "Sensitivity analysis of oscillating dynamical systems with applications to the mammalian circadian clock." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/42944.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 227-234).<br>The work presented in this thesis consists of two major parts. In Chapter 2, the theory for sensitivity analysis of oscillatory systems is developed and discussed. Several contributions are made, in particular in the precise definition of phase sensitivities and in the generalization of the theory to
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Munger, James William Hoffman Michael R. Hoffman Michael R. "The chemical composition of fogs and clouds in southern California /." Diss., Pasadena, Calif. : California Institute of Technology, 1989. http://resolver.caltech.edu/CaltechETD:etd-02132007-152409.

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Nejad, Lida A. M. "Time-dependent chemical kinetic models of circumstellar envelopes and interstellar clouds." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.702324.

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Minelli, Alice <1994&gt. "Chemical composition of Milky Way satellites: Magellanic Clouds and Sagittarius dwarf galaxy." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amsdottorato.unibo.it/10313/1/PhDThesis_AliceMinelli.pdf.

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This PhD project is aimed at investigating the chemical composition of the stellar populations in the closest satellites of the Milky Way (MW), namely the Large and Small Magellanic Cloud (LMC and SMC, respectively) and the remnant of the Sagittarius (Sgr) dwarf spheroidal galaxy. Their proximity allows us to resolve their individual stars both with spectroscopy and photometry, studying in detail the characteristics of their stellar populations. All these objects are interacting galaxies: LMC and SMC are in an early stage of a minor merger event, and Sgr is being disrupted by the tidal field o
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Szűcs, László [Verfasser], and Simon [Akademischer Betreuer] Glover. "Chemical evolution from diffuse clouds to dense cores / László Szűcs ; Betreuer: Simon Glover." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180301870/34.

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Morisawa, Yusuke. "Spectroscopic study of some chemically significant molecules in molecular clouds." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144599.

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Balakrishnan, Kaushik. "On the high fidelity simulation of chemical explosions and their interaction with solid particle clouds." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34672.

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High explosive charges when detonated ensue in a flow field characterized by several physical phenomena that include blast wave propagation, hydrodynamic instabilities, real gas effects, fluid mixing and afterburn effects. Solid metal particles are often added to explosives to augment the total impulsive loading, either through direct bombardment if inert, or through afterburn energy release if reactive. These multiphase explosive charges, termed as heterogeneous explosives, are of interest from a scientific perspective as they involve the confluence and interplay of various additional physica
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Ahlvind, Julia. "Isochrone and chemical ages of stars in the old open cluster M67." Thesis, Uppsala universitet, Observationell astrofysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-434634.

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The open cluster Messier 67 is known to have chemical composition, metallicity and age (~ 4 Gyr) close to the Sun. Therefore, it is advantageous for stellar physical studies and of stellar evolution, in particular for solar like stars within the cluster. This work considers three such stars, the formerly studied solar twin M67-1194 and two more recently suggested solar twins M67-1787 &amp; 2018. Most solar twins show a ratio of volatile to refractory elements that systematically depart from the Sun’s. Our targets do not follow this trend as closely. Their composition is closer to the Sun and t
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Lin, Xing. "Model studies of rainout, washout and the impact of chemical inhomogeneity on SO₂ oxidation in warm stratiform clouds." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/25714.

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Books on the topic "Chemical clocks"

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Preece, Stephen. Mathematical modelling of chemical clock reactions and cement hydration. University of Birmingham, 1999.

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United States. National Aeronautics and Space Administration., ed. Theory, image simulation and data analysis of chemical release experiments. National Aeronautics and Space Administration, 1994.

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Hallett, John. Replicator for characterization of cirrus and polar stratospheric cloud particles: Final report, NASA grant no. NAG 2-663. National Aeronautics and Space Administration, 1995.

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Weathermon, Brandon M. Chemical characterization of wet deposition to and foliage drip from a remote subalpine fir. Huxley College of Environmental Studies, Western Washington University, 1997.

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Surkova, Galina. Atmospheric chemistry. INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1079840.

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The textbook contains material corresponding to the course of lectures on atmospheric chemistry prepared for students studying meteorology and climatology. The basic concepts of atmospheric chemistry are given, its gaseous components, as well as aerosols and chemical processes related to their life cycles, which are important from the point of view of the formation of the radiation, temperature and dynamic regime of the atmosphere, as well as its pollution, are considered. The main regularities of the transport of impurities in the atmosphere and the role of processes of different spatial and
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Bodenheimer, Peter. Numerical studies of collapsing interstellar clouds: Final technical report, May 1, 1987. National Aeronautics and Space Administration, Ames Research Center, 1985.

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Bodenheimer, Peter. Numerical studies of collapsing interstellar clouds: NASA/Ames-University of California, Santa Cruz, Joint Research Interchange NAG 2-368 : final technical report, May 1, 1987. National Aeronautics and Space Administration, 1987.

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Gubanov, V. I. Sovremennyĭ gidrokhimicheskiĭ rezhim Ėgeĭskogo mori͡a︡. Moskovskoe otd-nie Gidrometeoizdata, 1988.

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Allenov, M. I. Struktura opticheskogo izluchenii͡a︡ prirodnykh obʺektov. Moskovskoe otd-nie Gidrometeoizdata, 1988.

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Hollenbach, David. Time-dependent photodissociation regions. National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "Chemical clocks"

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Moya, Andres, Luis Manuel Sarro, Elisa Delgado-Mena, William J. Chaplin, Vardan Adibekyan, and Sergi Blanco-Quaresma. "Stellar Dating Using Chemical Clocks and Bayesian Inference." In Machine Learning for Astrophysics. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34167-0_2.

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Dopita, M. A. "Chemical Abundances and Chemical Evolution of the Magellanic Clouds: Prospects for the Future." In The Magellanic Clouds. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3432-3_107.

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Sutherland, Ralph S., and M. A. Dopita. "N132D: A Chemical and Dynamic Analysis." In The Magellanic Clouds. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3432-3_99.

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Feast, M. W. "The Magellanic Clouds: Distance, Structure, Chemical Composition." In The Magellanic Clouds. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3432-3_1.

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Spite, F., and M. Spite. "The Chemical Evolution of the Magellanic Clouds." In The Magellanic Clouds. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3432-3_60.

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Russell, S. C. "The Chemical Evolution of the Magellanic Clouds." In The Magellanic Clouds. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3432-3_94.

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Irvine, W. M., P. F. Goldsmith, and Å. Hjalmarson. "Chemical Abundances in Molecular Clouds." In Interstellar Processes. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3861-8_21.

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Prasad, Sheo S., Sankar P. Tarafdar, Karen R. Villere, and Wesley T. Huntress. "Chemical Evolution of Molecular Clouds." In Interstellar Processes. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3861-8_23.

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Barbuy, B., J. A. de Freitas Pacheco, and T. Idiart. "Chemical Evolution of the Magellanic Clouds." In Cosmic Chemical Evolution. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0452-7_24.

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Dalgarno, A. "Chemical Processes in the Interstellar Gas." In Physical Processes in Interstellar Clouds. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3945-5_17.

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Conference papers on the topic "Chemical clocks"

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Schweizer, Christian, Matthew Hay, Chad V. Mashuga, and Waruna D. Kulatilaka. "OH-PLIF Diagnostics of Niacin Dust Flames." In Laser Applications to Chemical, Security and Environmental Analysis. Optica Publishing Group, 2024. https://doi.org/10.1364/lacsea.2024.lw3e.5.

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Hydroxyl radical planar laser-induced fluorescence (OH-PLIF) imaging is implemented to characterize the flame structure of burning niacin dust clouds. The flame morphology is analyzed using two-dimensional flame area and curvature measurements.
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Nakata, Makiko, and Sonoyo Mukai. "Consideration of aerosol injection processes originating from wildfires in a chemical transport model." In Remote Sensing of Clouds and the Atmosphere XXIX, edited by Evgueni I. Kassianov and Simone Lolli. SPIE, 2024. http://dx.doi.org/10.1117/12.3030799.

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Nalboc, Irina, Maria Prodan, Andrei Szollosi-Mota, and Sonia Suvar. "DETERMINATION OF EXPLOSION PARAMETERS FOR AIR-GASOLINE MIXTURES." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s06.69.

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The explosive atmosphere may be caused by flammable gases, vapors, or combustible dust. In the event that the material is combined with air in an adequate proportion, an ignition source is required to produce an explosion. Fuels and other liquids, as well as solvents from industrial items, release volatile vapors that can catch fire or explode when they come into contact with the air. At normal temperatures, flammable liquids can emit enough vapor to form combustible mixtures with air, heat, and often thick, black, and toxic clouds of smoke. The potential causes of explosions within work syste
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Prodan, Maria, Irina Nalboc, Andrei Szollosi-Mota, and Sonia Suvar. "DETERMINATION OF EXPLOSION CHARACTERISTICS FOR COMBUSTIBLE POWDERS (STARCH � MAGNESIUM)." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s06.73.

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Accidental explosions and fires caused by combustible dust are some of the most significant threats in many industries where layers of combustible dust and clouds are formed as a result of technological processes. Combustible powders react with air oxygen in a process known as oxidation, which produces carbon dioxide, carbon oxide, water, and other gases whose contents depend on the temperature at which the oxidation occurs. The dust cloud is the main form of existence of combustible dust in the production area and together with the existence of effective ignition sources are the main causes o
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Wei, Wenlong, Jintang Shang, Wenlin Kuai, Shunjin Qin, Tingting Wang, and Jie Chen. "Fabrication of wafer-level spherical Rb vapor cells for miniaturized atomic clocks by a chemical foaming process." In 2012 13th International Conference on Electronic Packaging Technology & High Density Packaging (ICEPT-HDP). IEEE, 2012. http://dx.doi.org/10.1109/icept-hdp.2012.6474922.

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Schreiber, Igor, and Jan Červený. "MODELLING OF METABOLIC OSCILLATIONS IN CYANOBACTERIA." In 17th International Conference on Fundamental and Applied Aspects of Physical Chemistry. Society of Physical Chemists of Serbia, 2024. https://doi.org/10.46793/phys.chem24i.127s.

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We use the theory of reaction networks to construct a compartmental model of metabolic oscillatory dynamics observed in experiments with photosynthesizing diazotrophic cyanobacteria (Cyanothece sp.) in a flow-through photobioreactor. The experimental oscillatory behavior occurs in a population of cells with suppressed activity of their circadian clocks under constant intensity of light. In such restricting conditions the cells are still viable and display oscillations measured by their oxygen release. Such oscillations are assumed to be based solely on metabolism, have period much shorter than
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Quick, Robert, Scott TEIGE, Soichi Hayashi, et al. "Building a Chemical-Protein Interactome on the Open Science Grid." In International Symposium on Grids and Clouds 2015. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.239.0024.

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Hu, Yongxiang. "Using Water Clouds for Lidar Calibration." In Laser Applications to Chemical, Security and Environmental Analysis. OSA, 2006. http://dx.doi.org/10.1364/lacsea.2006.tua4.

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Browell, Edward V. "Recent Developments in Airborne Lidar Measurements of Ozone, Water Vapor, and Aerosols." In Laser Applications to Chemical Analysis. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/laca.1992.tuc3.

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Major advances have taken place in the last 3 years in the development and application of airborne lidar systems in the measurement of ozone (O3), water vapor (H2O), and aerosols in various regions of the atmosphere. The first simultaneous measurements of O3 and aerosol distributions above and below an aircraft were made in tropospheric investigations in the Arctic during the summer of 1988 as part of the NASA Global Tropospheric Experiment (GTE), and this capability was subsequently used in the 1990 GTE field experiment over Canada. During the 1989 Airborne Arctic Stratospheric Experiment, th
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Alazarine, Aymeric, Sylvain Favier, Sébastien Blanchard, and Le Brun Gay. "Detecting unknown chemical clouds at distance with multispectral imagery." In Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIX, edited by Augustus W. Fountain, Jason A. Guicheteau, and Chris R. Howle. SPIE, 2018. http://dx.doi.org/10.1117/12.2305362.

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Reports on the topic "Chemical clocks"

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L52112 Bicarbonate�ClO4S-3 and CO2 on Crack Initiation and Propagation. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0011110.

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~~The primary aim of the studies described here was to improve the success of soil-based SCC site selection models by identifying groundwater constituents that lead to enhanced SCC susceptibility. Different aspects of the overall low-pH SCC process are considered, including: The development of trapped water, Crack initiation, and Early-stage crack growth. A mathematical modeling approach has been taken to investigate the development of trapped water from the surrounding groundwater. The coupled mass transport, chemical, and electrochemical processes within a disbondment of variable geometry re
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