Academic literature on the topic 'Active properties'

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Journal articles on the topic "Active properties"

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El-Dougdoug, W. I. A. "Synthesis and surface active properties of cationic surface active agents from crude rice bran oil." Grasas y Aceites 50, no. 5 (October 30, 1999): 385–91. http://dx.doi.org/10.3989/gya.1999.v50.i5.683.

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Guzmán-Cabrera, R., M. Vargas-Luna, I. Delgadillo-Holtfort, R. Huerta-Franco, E. A. Pérez-Alday, and T. Cordova-Fraga. "Optical Properties of Human Skin around Biological Active Points." International Journal of Computer and Electrical Engineering 8, no. 1 (2016): 57–65. http://dx.doi.org/10.17706/ijcee.2016.8.1.57-65.

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Tursunova, Gulsanam Ruzimurodovna, and Farrukh Bakhtiyarovich Atabaev. "Definition Of Puzzolanic Properties Active Mineral Additives In Portlandcement." American Journal of Applied Sciences 03, no. 03 (March 25, 2021): 7–12. http://dx.doi.org/10.37547/tajas/volume03issue03-02.

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The article presents the results of testing the use of Angren dry remote active ash and slag in Portland cement as an active mineral additive. It was found that Portland cement with the addition of Angren dry remote active ash and slag renders karrazastoy, ekanomet clinker and it is proved that hydro removed ash and slag (2011 year) does not recommend as an active mineral additive. Therefore, dry remote active ash and slag is recommended for use as an active mineral additive in the production of cement, improving its construction and technical properties. The possibility of using Angren dry remote active ash and slag as an active mineral component for producing cements with low corrosion resistance is shown. Angren dry remote active ash and slag contributes to the formation of the structure of the cement stone, increases its density and strength against aggressive ions, causing increased resistance in aggressive environments. And save up to 30% of cement. It has been established that Portland cement with the addition of Angren dry remote active ash and slag has an intensifying effect on the formation of clinker minerals. Therefore, the Angren dry remote active ash and slag is recommended for use as a mineralizing additive in the production of cement. Use of chemical industry waste with replacement of expensive natural production and consumption waste. At the same time, an environmental problem is being addressed.
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N. N., Khoshimov, Azizov V.G., Abduboqiyev A. R., and Rakhimov R.N. "Study Of The Neuroprotective Properties Of Biologically Active Compounds." American Journal of Medical Sciences and Pharmaceutical Research 03, no. 05 (May 19, 2021): 1–8. http://dx.doi.org/10.37547/tajmspr/volume03issue05-01.

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The works show that, using fluorescent probes, it was used to study the effect of PC-8 on changes in the dynamics of the intracellular Ca2+ content in synaptosomes of the rat brain, depending on the site of the binding of glutamate on calcium channels by a specific mediator with glutamate. To measure the amount of cytosolic Ca2+ synaptosomes, we calculated using the Grinkevich equation. It has been shown that polyphenol PC-8 binds to the glutamate-binding site of NMDA receptors, so that the conductance for Ca2+ ions is reduced through a channel blocking the effect of polyphenol PC-8 can be explained. due to its binding to the competing action of the site, the binding of glutamate to NMDA receptors.
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Kazybekova, S. K., N. K. Bishimbaeyva, A. S. Murtazina, S. M. Tazhibayeva, and R. Miller. "Physico-chemical properties of physiologically active polysaccharides from wheat tissue culture." International Journal of Biology and Chemistry 8, no. 2 (2015): 18–22. http://dx.doi.org/10.26577/2218-7979-2015-8-2-18-22.

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Krasnova-, Tamara, Natalya Gora, and Nadegda Golubeva. "INFLUENCE OF PHYSICAL-CHEMICAL PROPERTIES OF ACTIVE CARBONS ON GALLIC ACID ADSORPTION." Foods and Raw Materials 3, no. 1 (July 1, 2015): 120–25. http://dx.doi.org/10.12737/11467.

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Salakhutdinov, B. A., É. T. Tadzhibaeva, M. V. Zamaraeva, I. I. Tukfatullina, T. F. Aripov, L. G. Mezhlum'yan, É. F. Redina, and P. Kh Yuldashev. "Membrane-active properties of crambin." Chemistry of Natural Compounds 34, no. 1 (January 1998): 62–67. http://dx.doi.org/10.1007/bf02249689.

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Rosslee, Craig, and Nicholas L. Abbott. "Active control of interfacial properties." Current Opinion in Colloid & Interface Science 5, no. 1-2 (March 2000): 81–87. http://dx.doi.org/10.1016/s1359-0294(00)00035-2.

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Johnston, D., J. C. Magee, C. M. Colbert, and B. R. Christie. "Active Properties of Neuronal Dendrites." Annual Review of Neuroscience 19, no. 1 (March 1996): 165–86. http://dx.doi.org/10.1146/annurev.ne.19.030196.001121.

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Schleip, Robert, and Werner Klingler. "Active contractile properties of fascia." Clinical Anatomy 32, no. 7 (May 2, 2019): 891–95. http://dx.doi.org/10.1002/ca.23391.

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Dissertations / Theses on the topic "Active properties"

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Zeng, Yong. "Optical properties of active photonic materials." Doctoral thesis, Stockholm : Bioteknologi, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4497.

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Baumann, Martin J. "Xyloglucan-active enzymes : properties, structures and applications." Doctoral thesis, Stockholm : Bioteknologi, KTH, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4314.

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Omiccioli, Nicola. "Evaluation of antioxidant properties of new active polymers." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Active packaging by radical scavenging of the free radical species involved in the biochemical degradation of food is an innovative way to extend the shelf-life of a food product. Current drivers such as consumer’s demand for safer, “healthier,” and higher-quality foods have led to the development of new packaging materials which contain natural extracts. This kind of materials could act as free radical scavengers and thus permit to avoid the use of synthetic and dangerous for the human health antioxidant. In this work, multilayer polymeric materials of different types containing natural extracts of ginger, rosemary and green tea available in the market have been produced and tested. Production was carried out using technologies that could be compatible with the processes used at industrial level. For the test, the scavenging power of the materials was evaluated analysing the quantity of scavenged radicals from a gaseous stream containing in situ produced •OH radicals. The antioxidant power was also evaluated measuring the degradation rate in samples of fried potato chips packed with the materials produced by carrying out TBARs (thiobarbituric acid reaction system) assay. Finally, with the available data, an analysis of the compositions of the materials before and after the oxidation due to the absorbed •OH radicals was carried out, to understand which compounds, belonging to the natural extracts, was responsible of the observed scavenger action.
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Raimundo, Sandra Isabel de Jesus. "Measuring the physical properties of active galactic nuclei." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609908.

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Huang, Caijin. "Optical nano-antennas : passive properties and active control." Thesis, Dijon, 2010. http://www.theses.fr/2010DIJOS011/document.

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Les nano-antennes optiques sont de nouveaux éléments, généralement métalliques, permettant d’améliorer les interactions électromagnétiques entre le rayonnement lumineux et un objet sub-longueur d’onde. Ces dispositifs innovants, fonctionnant dans une gamme de longueur d’onde correspondant au spectre visible et proche infrarouge, répondent à certaines contraintes inhérentes à l’optique lorsque les échelles d’interactions relèvent du nanomètre. En particulier, les propriétés des antennes optiques métalliques sont régies par l’apparition de résonances plasmons qui permettent, d’une part de confiner le champ électromagnétique dans des volumes très inférieurs aux limites imposées par la diffraction, et d’autre part d’exalter fortement les processus optiques à faibles sections efficaces. L’objectif de cette thèse est de comprendre par l’expérience quels sont les paramètres clés qui caractérisent une nano-antenne optique afin d’en contrôler son fonctionnement. Ces paramètres ont été accessibles expérimentalement grâce au développement d’une microscopie adaptée basée sur une illumination diascopique à faible ouverture numérique avec soit une détection coronographique confocale ou conoscopique. Cet appareillage nous a permis de mesurer la capacité d’une antenne optique unique à diffuser un rayonnement lumineux. Les études ont débutées avec des systèmes modèles simples (nanoparticules) pour évoluer vers des antennes couplées (dimères). Par analogie avec le domaine radiofréquences, les paramètres importants d’une antenne optique que sont la plage fréquentielle, le désaccord, le gain et le diagramme de rayonnement ont été définis et mesurés. L’influence des caractéristiques morphologiques de l’antenne sur ces paramètres a complété l’étude. Toujours par comparaison avec les antennes radiofréquences, nous avons introduit le concept de tuner optique. Le principe est de modifier la réponse optique de la charge de l’antenne, c’est-à-dire le milieu dans lequel elle émet son rayonnement. Dans ce but, nous avons utilisé un milieu anisotrope composé des molécules de cristal liquide dont l’orientation de l’ellipsoïde des indices peut être commandée par un champ électrostatique. Le fonctionnement du tuner, c’est-à-dire l’accord de l’antenne à une fréquence de travail, a été démontré pour des antennes optiques couplées
Optical nanoantennas are a new class of optical devices, generally constituted of metal nanoparticles, used for enhancing the interaction between an electromagnetic wave and a nano-scale object. These components are operating in the visible to near infra-red part of the spectrum and are offering solutions for the inherent limitations of optics at the nanometer scale. In particular, the properties of optical antennas are governed by the surface plasmon resonances of the underlying structure. These resonances are associated with a large field confinement, beyond the diffraction limit, and an enhancement of the local electromagnetic response that is used to amplify weak optical processes. The objective of this doctoral thesis is to understand by an experimental approach what are the key parameters characterizing an optical antenna with the aim to control its operation. Through the development of an original microscopy based on a low numerical aperture diascopic illumination and a subsequent spatial filtering, the scattering characteristics of a single optical nano-antenna were successfully measured. Our approach was first tested with simple model antennas (nanoparticles) before investigating multi-element coupled antennas (dimers). In analogy to radiofrequency theory, we have defined and measured important antenna characteristics: operating frequency, detuning factor, gain and emission diagram. We have studied the influence of the morphology of the antenna on these characteristics. Continuing the comparison with microwave antennas, we have introduced the concept of an optical tuner. The operating principle is to modify the medium in which the antenna is emitting its radiation i.e. the load of the device. To this aim, we have employed anisotropic liquid crystal molecules. With this load medium, the orientation of the anisotropy can be controlled by a static electric field. The operation of the optical tuner, i.e. tuning of the antenna to a broadcasting frequency, is demonstrated for electromagnetically coupled antennas
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Nilsson, Frederik. "Alkylglucosides physical-chemical properties /." Lund : Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University, 1998. http://catalog.hathitrust.org/api/volumes/oclc/39761789.html.

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Chaudhary, Pooja. "Properties of the integrated spectrum of active galactic nuclei." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-137908.

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DeBoo, Brian J. "Investigation of polarization scatter properties using active imaging polarimetry." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280600.

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This work investigates complete Mueller matrix polarization signatures in scattered light. A number of samples are studied using Mueller matrix imaging polarimetry, where samples are actively illuminated with a sequence of known polarization states. The capabilities of the Mueller matrix imaging polarimeter for scatter measurements are explored. Measuring polarization properties in scattered light from targets is important in remote sensing because polarization offers additional information unavailable from intensity measurements alone. Polarization helps discriminate surface features or material properties. The Mueller matrix contains detailed polarization and depolarization information possible for scattering objects, and every Mueller element conveys polarization coupling information. Polarization signatures are obtained at a number of different illumination and scatter angles, and a Mueller matrix bidirectional reflectance distribution function (MBRDF) in one dimension is used to compare various targets. Polarization metrics including diattenuation, retardance, and depolarization obtained from Mueller matrix data images provide methods for comparison, classification, and discrimination of targets. This work examines these reduced polarization parameters and how they vary as a function of scattering geometry, in order to determine which polarization signatures are the best discriminants for remote sensing or metrology. The Mueller matrix bidirectional reflectance distribution function, diattenuation, retardance, and depolarization properties are studied for a diverse group of manmade samples. A group of leaf samples is also studied, to see how natural samples behave and to compare natural and manmade samples. The most prevalent and useful discriminants for scattering samples appear in the depolarization data. Although this is not unexpected, these depolarization properties have not been studied in detail before and are not well described in the literature. Most depolarizing samples investigated showed an inverted Gaussian profile of depolarization magnitude versus scatter angle, with minimum depolarization for specular reflection which increases asymptotically as the scatter angle changes. Other patterns are found in the more noisy diattenuation and retardance data.
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Burkitt, S. J. "Properties of flurocarbon and hydrocarbon surface active agent mixtures." Thesis, University of Bristol, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375002.

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Goldspink, Mark Richard. "Synthesis and properties of some novel electrically active ionophores." Thesis, Royal Holloway, University of London, 1988. http://repository.royalholloway.ac.uk/items/60a2c468-741c-43ea-a9a8-459ae6a5eff5/1/.

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This thesis reports an investigation of the synthesis and properties of a series of electrically active crown ethers and cryptand complexes. The work has fallen into a number of distinct categories: (i) The synthesis of and structural studies on an ion-binding ferrocene-bridged cryptand in which the ferrocene unit as a potential redox centre has been investigated. The ion-binding abilities of andselectivities shown by these materials have been established by a variety of chemical and spectroscopic techniques. The results obtained have been compared with their receptor cavity sizes as established by X-ray structural studies. There is no spectroscopic evidence for any direct interaction between the iron atom and a metal ion residing in the cryptand cavity. (ii) The effect of crown ether or cryptand encapsulation of a metal ion on the properties of some electrically active salts have been investigated. Two different types of material have been studies; (a) TCNQ salts which show metallic/semiconducting behaviour and (b) oxonol dye salts which are semi-insulators. It has been shown that the presence of crown ethers significantly modifies the electronic behaviour of these materialsand can cause a complete change in the dominant conduction mechanism. (iii) A series of substituted and polymeric crown ethers have been prepared and synthetic routes to a polymerisable cryptand have been explored. Polymeric crown ether/TCNQ salts are found to show similar electrical behaviour to that seen for the monomeric anaolgues.
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Books on the topic "Active properties"

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O'Lenick, Anthony J. Surfactants: Chemistry and properties. Carol Stream, IL: Allured Pub. Corp., 1999.

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Europhysics Conference on Macromolecular Physics (21st 1989 Łodź, Poland). Electrical and optical active polymers: Structure, morphology, and properties. Edited by Kryszewski Marian, Ulański J, European Physical Society. Macromolecular Physics Section., Politechnika Łódzka Instytut Polimerów, Politechnika Łódzka. Polymer Physics Laboratory., and Centrum Badań Molekularnych i Makromolekularnych (Polska Akademia Nauk). Polymer Physics Dept. Geneva: European Physical Society, 1989.

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Kissa, Erik. Fluorinated surfactants: Synthesis, properties, applications. New York: M. Dekker, 1994.

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Os, N. M. van. Physico-chemical properties of selected anionic, cationic, and nonionic surfactants. Amsterdam: Elsevier, 1993.

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Thermally active surfaces in architecture. New York: Princeton Architectural Press, 2010.

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Tōmei sankabutsu kinō zairyō no kaihatsu to ōyō: Developments and applications of transparent oxides as active electronic materials. Tōkyō: Shīemushī Shuppan, 2011.

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Conference on the Active Superconducting Composites (1st 1996 Université Toulon-Var). CCAS1: Actes du premier Colloque sur les composites actifs supraconducteurs = proceedings of the First Conference on the Active Superconducting Composites, Université Toulon-Var, Toulon-La Garde, 11 et 12 Septembre 1996. Les Ulis, France: EDP Sciences, 1998.

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Jääskeläinen, Eduard. The role of surfactant properties of extractants in hydrometallurgical liquid-liquid extraction processes. Lappeenranta, Finland: Lappeenranta University of Technology, 2000.

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Meeting, Materials Research Society, and Symposium NN, "Active Polymers" (2009 : San Francisco, Calif.), eds. Active polymers: Symposium held April 14-17, 2009, San Francisco, California, U.S.A. Warrendale, Pa: Materials Research Society, 2009.

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Dugulan, Achim Iulian. High-pressure sulfidation of hydrotreating catalysts: Genesis and properties of the active phase. Amsterdam: IOS Press/Delft University Press, 2008.

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Book chapters on the topic "Active properties"

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Grot, Stephen A. "Active Diamond Electronic Devices." In Diamond: Electronic Properties and Applications, 443–61. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2257-7_11.

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Mattei, Janet Akyüz. "Optical Properties of Cataclysmic Variable Stars." In Active Close Binaries, 611–27. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0679-2_47.

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Topolov, Vitaly Yu, Paolo Bisegna, and Christopher R. Bowen. "The Piezoelectric Medium and Its Electromechanical Properties." In Piezo-Active Composites, 1–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38354-0_1.

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Heisler, Charlene Anne, and J. Patricia Vader. "Morphological Properties of Unusually Warm IRAS Galaxies." In Active Galactic Nuclei, 408–9. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0963-2_127.

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McCarthy, Patrick J., Hyron Spinrad, and Wil van Breugel. "Optical Properties of High Redshift Radio Galaxies." In Active Galactic Nuclei, 543–45. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0963-2_172.

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Bechtold, Jill, and Stephen A. Shectman. "Statistical Properties of the Lyman α Forest." In Active Galactic Nuclei, 549–54. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0963-2_174.

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Rácz, Zoltán. "Continuum Description of Active Zones." In Fractals’ Physical Origin and Properties, 193–203. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4899-3499-4_8.

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Trevese, D., D. C. Koo, and R. G. Kron. "Properties of a QSO Sample Selected Through Variability." In Active Galactic Nuclei, 47–48. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0963-2_9.

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Sainz, R. Manso, I. Rodríguez Hidalgo, and M. Collados. "Quiet and Active Granulation Properties." In Motions in the Solar Atmosphere, 197–200. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9331-1_8.

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Foote, Christopher S., and Edward L. Clennan. "Properties and Reactions of Singlet Dioxygen." In Active Oxygen in Chemistry, 105–40. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-007-0874-7_4.

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Conference papers on the topic "Active properties"

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Otero-Martínez, Carla, Pablo Hervés-Beloso, and Sara Núñez-Sánchez. "Tunable chiral properties of J-aggregates." In Active Photonic Platforms XIII, edited by Ganapathi S. Subramania and Stavroula Foteinopoulou. SPIE, 2021. http://dx.doi.org/10.1117/12.2594624.

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Ethridge, James A., John G. Jones, Manuel R. Ferdinandus, Michael J. Havrilla, and Michael A. Marciniak. "Linear and nonlinear properties of ITO/SiO2 layered metamaterials." In Active Photonic Platforms XIII, edited by Ganapathi S. Subramania and Stavroula Foteinopoulou. SPIE, 2021. http://dx.doi.org/10.1117/12.2594599.

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Liu, Xianming, Xiangdi Li, Xueying Cao, Peng Zhang, Xiaohua Lei, and Weimin Chen. "Electrical properties of SiO2-based graphene under monochromatic visible light irradiation." In Active Photonic Platforms IX, edited by Ganapathi S. Subramania and Stavroula Foteinopoulou. SPIE, 2017. http://dx.doi.org/10.1117/12.2271739.

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Richterová, Klára, Martina Nováková, Zuzana Antošová, Tereza Neubauerová, and Martina Macková. "Isolation and study of the properties of recombinant pseudoosmotin." In XIIth Conference Biologically Active Peptides. Prague: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 2011. http://dx.doi.org/10.1135/css201113118.

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Li, Zhitong, Joseph S. T. Smalley, Ross Haroldson, Dayang Lin, Roberta Hawkins, Abouzar Gharajeh, Jiyoung Moon, et al. "Visible frequency active hyperbolic metamaterials." In Photonic and Phononic Properties of Engineered Nanostructures X, edited by Ali Adibi, Shawn-Yu Lin, and Axel Scherer. SPIE, 2020. http://dx.doi.org/10.1117/12.2544508.

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Stampfer, Christoph. "Single Walled Carbon Nanotubes as Active Elements in Nanotransducers." In ELECTRONIC PROPERTIES OF NOVEL NANOSTRUCTURES: XIX International Winterschool/Euroconference on Electronic Properties of Novel Materials. AIP, 2005. http://dx.doi.org/10.1063/1.2103942.

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Sushkov, Oleg O., and Claude Sammut. "Active robot learning of object properties." In 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2012). IEEE, 2012. http://dx.doi.org/10.1109/iros.2012.6385717.

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Marra, Steven P., Kaliat T. Ramesh, and Andrew S. Douglas. "Mechanical properties of active polyacrylonitrile gels." In 1999 Symposium on Smart Structures and Materials, edited by Yoseph Bar-Cohen. SPIE, 1999. http://dx.doi.org/10.1117/12.349681.

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Dobrogowski, Andrzej, Jan Lamperski, and Piotr Stepczak. "Properties of active fiber optical sources." In SPIE Proceedings, edited by Jan Wójcik and Waldemar Wójcik. SPIE, 2007. http://dx.doi.org/10.1117/12.739608.

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Guzmán Barraza, Arturo, José Gabriel Ortega Mendoza, Noel Ivan Toto Arellano, and Emma Vianey García Ramírez. "Z-scan to measurement the nonlinear optical properties of water, ethanol, and acetone using a laser at 1550 nm." In Active Photonic Platforms XII, edited by Ganapathi S. Subramania and Stavroula Foteinopoulou. SPIE, 2020. http://dx.doi.org/10.1117/12.2568892.

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Reports on the topic "Active properties"

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Kim, Il-Seok. Synthesis, Structure And Properties of Electrochemically Active Nanocomposites. Fort Belvoir, VA: Defense Technical Information Center, May 2003. http://dx.doi.org/10.21236/ada442021.

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Lee, Rebekah F., and Robert E. Abbott. Test to Extract Soil Properties Using the Seismic HammerTM Active Seismic Source. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1380104.

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McKenzie, D. L. The Properties of Solar Coronal Active Regions Deduced from X-Ray Line Spectra,. Fort Belvoir, VA: Defense Technical Information Center, February 1988. http://dx.doi.org/10.21236/ada193026.

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Dr. Shemin Ge. Theoretical and Experimental Studies of Hydrological Properties of Rock Features During Active Deformation. Office of Scientific and Technical Information (OSTI), February 2003. http://dx.doi.org/10.2172/838813.

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Lee, Eunice. A Study on the Effects of Using Redox Active Solvents on the Photophysical Properties of Silicon Nanoparticles. Portland State University Library, January 2016. http://dx.doi.org/10.15760/honors.180.

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Mobley, Curtis D. Determining the Scattering Properties of Vertically-Structured Nepheloid Layers from the Fusion of Active and Passive Optical Sensors. Fort Belvoir, VA: Defense Technical Information Center, September 2006. http://dx.doi.org/10.21236/ada630921.

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Taylor, Oliver-Denzil, Amy Cunningham,, Robert Walker, Mihan McKenna, Kathryn Martin, and Pamela Kinnebrew. The behaviour of near-surface soils through ultrasonic near-surface inundation testing. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41826.

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Seismometers installed within the upper metre of the subsurface can experience significant variability in signal propagation and attenuation properties of observed arrivals due to meteorological events. For example, during rain events, both the time and frequency representations of observed seismic waveforms can be significantly altered, complicating potential automatic signal processing efforts. Historically, a lack of laboratory equipment to explicitly investigate the effects of active inundation on seismic wave properties in the near surface prevented recreation of the observed phenomena in a controlled environment. Presented herein is a new flow chamber designed specifically for near-surface seismic wave/fluid flow interaction phenomenology research, the ultrasonic near-surface inundation testing device and new vp-saturation and vs-saturation relationships due to the effects of matric suction on the soil fabric.
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Hodgdon, Taylor, Anthony Fuentes, Jason Olivier, Brian Quinn, and Sally Shoop. Automated terrain classification for vehicle mobility in off-road conditions. Engineer Research and Development Center (U.S.), April 2021. http://dx.doi.org/10.21079/11681/40219.

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The U.S. Army is increasingly interested in autonomous vehicle operations, including off-road autonomous ground maneuver. Unlike on-road, off-road terrain can vary drastically, especially with the effects of seasonality. As such, vehicles operating in off-road environments need to be in-formed about the changing terrain prior to departure or en route for successful maneuver to the mission end point. The purpose of this report is to assess machine learning algorithms used on various remotely sensed datasets to see which combinations are useful for identifying different terrain. The study collected data from several types of winter conditions by using both active and passive, satellite and vehicle-based sensor platforms and both supervised and unsupervised machine learning algorithms. To classify specific terrain types, supervised algorithms must be used in tandem with large training datasets, which are time consuming to create. However, unsupervised segmentation algorithms can be used to help label the training data. More work is required gathering training data to include a wider variety of terrain types. While classification is a good first step, more detailed information about the terrain properties will be needed for off-road autonomy.
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Norman R. Morrow, Herbert Fischer, Yu Li, Geoffrey Mason, Douglas Ruth, Peigui Yin, and Shaochang Wo. Fundamentals of Reservoir Surface Energy as Related to Surface Properties, Wettability, Capillary Action and Oil Recovery from Fractured Reservoirs by Spontaneous Imbibition. Office of Scientific and Technical Information (OSTI), December 2006. http://dx.doi.org/10.2172/902974.

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Norman R. Morrow, Herbert Fischer, Yu Li, Geoffrey Mason, Douglas Ruth, Siddhartha Seth, Jason Zhengxin Tong, Peigui Yin, and Shaochang Wo. Fundamentals of reservoir surface energy as related to surface properties, wettability, capillary action, and oil recovery from fractured reservoirs by spontaneous imbibition. Office of Scientific and Technical Information (OSTI), June 2006. http://dx.doi.org/10.2172/895497.

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