Relevant bibliographies by topics / Phase and chemical composition

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Phase and chemical composition'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Phase and chemical composition"

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Opanasyuk, A. S. "The structure, phase and chemical composition of CZTSe thin films." Functional Materials 21, no. 2 (2014): 164–70. http://dx.doi.org/10.15407/fm21.02.164.

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Sobol, Khrystyna, Serhiy Solodkyy, Nadiya Petrovska, Sergiy Belov, Oleksii Hunyak, and Volodymyr Hidei. "Chemical Composition and Hydraulic Properties of Incinerated Wastepaper Sludge." Chemistry & Chemical Technology 14, no. 4 (2020): 538–44. http://dx.doi.org/10.23939/chcht14.04.538.

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The hydraulic properties of ash from incinerated wastepaper sludge were investigated. It is shown that the phase composition of wastepaper sludge after heat treatment is similar to the classical fired carbonate-clay mixes. The necessity of using the combination of retarding admixtures with different action mechanism is shown. The strength in the initial hardening period is ensured by the formation of AFm-phases and ettringite, and subsequently by increasing the role of CSH.
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Brankovic, Zorica, Goran Brankovic, Dejan Poleti, Ljiljana Karanovic та Jose Varela. "Correlation between chemical composition of the γ-Bi2O3 phase and the properties of ZnO varistors". Chemical Industry and Chemical Engineering Quarterly 11, № 4 (2005): 169–72. http://dx.doi.org/10.2298/ciceq0504169b.

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Four varistor samples differing in chemical and phase composition of the starting Bi2O3 phase were prepared by the method of direct mixing of the constituent phases (DMCP), i.e. by sintering the mixture of the previously prepared phases. The compositions of the constituent phases in the sintered samples were investigated by changes of their lattice constants and by EDS analysis. After sintering, the phase compositions of all the investigated samples were the same: ZnO phase, spinel and ?-Bi2O3. It was found that the ?-Bi2O3 phase was mainly stabilized with Zn2+ ions. All the samples showed goo
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Dolníček, Zdeněk, Ladislav Kandrnál, Jana Ulmanová, Ester Vratislavská, and Pavel Hojač. "Strusky z redukční tavby pelosideritové železné rudy realizované na hradě Buchlově (jv. Chřiby) v roce 2019: extrémní variabilita fázového složení a chemismu jednotlivých fází." Bulletin Mineralogie Petrologie 29, no. 1 (2021): 59–76. http://dx.doi.org/10.46861/bmp.29.059.

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During experimental smelting of iron in a replica of historical shaft furnace, which was held at the Buchlov Castle in 2019, charcoal and fresh pelosiderite iron ore from the locality Moravany near Kyjov were used. The obtained furnace slag is practically completely formed by glass phase; only rare small domains contain also crystalline phases, whose occurrence is very irregular. A detailed study of chemical composition showed extreme heterogeneity in composition of glass and most crystalline phases. The glass phase contains variable, but often high amounts of Mn, Ca, Mg and sometimes P and/or
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Yurishima, Ryuta, Ayako Ikeda, and Teruyuki Ikeda. "Determination of the Entire Existence Composition Range of CrMnFeCoNi High-Entropy Alloys Using Sintered Diffusion Multiple Method." Materials 18, no. 2 (2025): 295. https://doi.org/10.3390/ma18020295.

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The sintered diffusion multiple (SDM) method, which has been developed in our research group, has been applied to determine the entire composition range of the CrMnFeCoNi high-entropy alloy stereoscopically and continuously over nearly the entire range. The samples were prepared by sintering mixed elemental powders and were annealed at 970 °C or 800 °C. Several hundreds of thousands of points were analyzed at random within the samples for chemical compositions using electron probe microanalysis. With the assumption that ideally, only chemical compositions of existing phases at the temperature
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Chmiela, Bartosz, Maria Sozańska, and Kinga Rodak. "Phase Identification in Nickel-Based Superalloys Using EBSD/SEM and Electron Diffraction in STEM." Solid State Phenomena 186 (March 2012): 58–61. http://dx.doi.org/10.4028/www.scientific.net/ssp.186.58.

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Aero engine turbine blades made of nickel-based superalloys are critical components in flight safety. Therefore, it is very important to make sure that the chemical composition, phase composition and microstructure are suitable. However, due to their chemical compositions, superalloys are prone to many transformations and the formation of deleterious phases, which deteriorate the mechanical properties. Hence, investigations concerning the structural stability and phase identification—especially topologically close-packed phases (TCP)—are necessary. Because the volume fractions of these phases
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Krupiński, Mariusz, Krzysztof Labisz, and Beata Krupińska. "Structure and Properties of Strontium-Modified Zn–Al–Cu Alloys." Materials 18, no. 4 (2025): 797. https://doi.org/10.3390/ma18040797.

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(1) In recent years, an increase in the available functionality of non-ferrous alloys has been observed based on the modification and optimization of their chemical composition. This study investigated the effect of Sr addition on the structure and properties of hypereutectic Zn–Al–Cu alloys. The objective was to determine how a modification with Al–Sr master alloy affects the crystallization kinetics, microstructure, hardness, and abrasive wear resistance and whether the modification of the phase composition reduces the corrosion resistance. (2) The total influence of strontium was determined
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Mammadova, Sh. "Fertilizers Effect on the Chemical Composition of Vegetable Beans." Bulletin of Science and Practice 6, no. 11 (2020): 188–96. http://dx.doi.org/10.33619/2414-2948/60/22.

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The article presents the results of studies on the change in the intensity of accumulation of nutrients in seeds, in the trunk, root and leaves of green beans, depending on the phase of plant development. The change of indicators of nitrogen availability in the branching phase was 1,05–1,61%, phosphorus 0,79–1,25, and potassium 1,30–1,92%; in the flowering phase respectively 0,84–1,28%; 0,44–0,87%, and 0,95–1,35%; during the period of beans formation: nitrogen 2,26–2,93%, phosphorus 0,85–1,54%; potassium 1,17–1,65%; in the phase of seed formation, respectively 3,51–4,03%; 0,74–1,01%; and 0,86–
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Bondarenko, N., D. Bondarenko, and E. Evtushenko. "STUDY OF THE CHEMICAL INTERACTION OF GLASS FIBER WITH CEMENT HYDRATION PRODUCTS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 5, no. 12 (2021): 119–25. http://dx.doi.org/10.34031/2071-7318-2020-5-12-119-125.

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Reinforcement of concrete with fiberglass improves the performance properties of concrete. The object of the study is fiberglass concrete, where Portland cement or alumina cement is used as a binder, and silica fiberglass is used as a filler. The chemical and phase compositions of Portland cement and alumina cement have been studied. The influence of the products of hydration of Portland cement and alumina cement on the chemical resistance of glass fiber has been investigated. The phase composition of Portland cement and alumina cement after hydration is studied using X-ray phase analysis. It
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Pęska, Magda, Krzysztof Karczewski, Magdalena Rzeszotarska, and Marek Polański. "Direct Synthesis of Fe-Al Alloys from Elemental Powders Using Laser Engineered Net Shaping." Materials 13, no. 3 (2020): 531. http://dx.doi.org/10.3390/ma13030531.

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The laser engineered net shaping (LENS®) process is shown here as an alternative to melting, casting, and powder metallurgy for manufacturing iron aluminides. This technique was found to allow for the production of FeAl and Fe3Al phases from mixtures of elemental iron and aluminum powders. The in situ synthesis reduces the manufacturing cost and enhances the manufacturing efficiency due to the control of the chemical and phase composition of the deposited layers. The research was carried out on samples with different chemical compositions that were deposited on the intermetallic substrates tha
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Dissertations / Theses on the topic "Phase and chemical composition"

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Ho, Gutiérrez Iris V. (Iris Violeta). "Equilibrium compositions in two-phase partition." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60712.

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The partition behavior of aqueous and organic ternary solutions into two immiscible phases at ambient temperatures was studied. A classification system of the types of materials which phase partition water and organic solvents was developed and a comprehensive list of systems for which phase diagram information is available in the literature has been presented.<br>Systems in three different classes of materials were studied. Equilibrium phase diagrams, tie-lines and plait points were generated for the ternary systems: poly(ethylene glycol)-1,000/sodium sulfate/water at 28$ sp circ$C; poly(ethy
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de, Abreu Thomaka Carlos Fellipe. "Recycling of the water-phase from hydrothermal conversion of biomass : Comparative study of water composition using lignin and microalgae as feedstocks." Thesis, Umeå universitet, Kemiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-184232.

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Xu, Donghai. "Phase behaviour modelling of hydrocarbon systems for compositional reservoir simulation of gas injection processes." Thesis, Heriot-Watt University, 1990. http://hdl.handle.net/10399/886.

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Bitteur, Sylvaine. "Etude, par chromatographie en phase liquide, du partage de composes d'arôme entre une phase aqueuse et des phases stationnaires hydrophobes." Paris 6, 1986. http://www.theses.fr/1986PA066449.

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Ce travail a consisté à étudier dans quelle mesure la chromatographie en phase liquide permet d'extraire les composes d'arôme présents en très faible concentration dans les effluents aqueux des industries agro-alimentaires. Les rendements d'extraction accessibles par enrichissement de traces étant directement lies aux facteurs de capacité des solutés d'intérêt, l'étude proposée se ramenait à celle du partage de composes d'arôme entre une phase aqueuse et des phases stationnaires hydrophobes. La première partie détaille les divers paramètres susceptibles de modifier les rendements d'extraction
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Mizzi, Arthur P., Jr Avelino F. Arellano, David P. Edwards, Jeffrey L. Anderson, and Gabriele G. Pfister. "Assimilating compact phase space retrievals of atmospheric composition with WRF-Chem/DART: a regional chemical transport/ensemble Kalman filter data assimilation system." COPERNICUS GESELLSCHAFT MBH, 2016. http://hdl.handle.net/10150/616998.

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This paper introduces the Weather Research and Forecasting Model with chemistry/Data Assimilation Research Testbed (WRF-Chem/DART) chemical transport forecasting/data assimilation system together with the assimilation of <i>compact phase space retrievals</i> of satellite-derived atmospheric composition products. WRF-Chem is a state-of-the-art chemical transport model. DART is a flexible software environment for researching ensemble data assimilation with different assimilation and forecast model options. DART's primary assimilation tool is the ensemble adjustment Kalman filter. WRF-Chem/DART i
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Bräuer, Peter. "Extension and application of a tropospheric aqueous phase chemical mechanism (CAPRAM) for aerosol and cloud models." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-183743.

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The ubiquitous abundance of organic compounds in natural and anthorpogenically influenced eco-systems has put these compounds into the focus of atmospheric research. Organic compounds have an impact on air quality, climate, and human health. Moreover, they affect particle growth, secondary organic aerosol (SOA) formation, and the global radiation budget by altering particle properties. To investigate the multiphase chemistry of organic compounds and interactions with the aqueous phase in the troposphere, modelling can provide a useful tool. The oxidation of larger organic molecules to the fina
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Harry, Solo Andriniaina. "Étude théorique d'un plasma dans la phase de transition allumage/combustion d'un moteur à gaz." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30093.

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L'allumage par étincelle des moteurs thermiques, conduisant au déclenchement de la combustion, se caractérise par différents processus qui se produisent durant de courts instants (maximum quelques millisecondes). La connaissance et la maitrise des phénomènes physico-chimiques qui interviennent sont des éléments clés permettant d'optimiser le système. Au moyen d'outils numériques, une description et une compréhension plus fine des mécanismes régissant le domaine peuvent être réalisées. Cette thèse s'inscrit dans cette problématique, et a pour objectif l'analyse de l'évolution des espèces d'un m
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Vikström, Amanda. "Separate Calcination in Cement Clinker Production : A laboratory scale study on how an electrified separate calcination step affects the phase composition of cement clinker." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-184038.

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Cement production is responsible for around 7% of the global anthropogenic carbon dioxide emissions. More than half of these emissions are due to the unavoidable release of carbon dioxide upon thermal decomposition of the main raw material limestone. Many different options for carbon capture are currently being investigated to lower emissions, and one potential route to facilitate carbon capture could be the implementation of an electrified separate calcination step. However, potential effects on the phase composition of cement clinker need to be investigated, which is the aim of the present s
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Marie, Herrero. "Influence des fermentations alcoolique et malolactique sur la composition chimique des cidres à distiller en cours d'élaboration." Phd thesis, Université de Caen, 2011. http://tel.archives-ouvertes.fr/tel-00631021.

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Ce travail consistait à caractériser et suivre les changements de la composition chimique des cidres à distiller durant leur élaboration. Pour répondre à cet objectif, pendant deux campagnes de production (2007/2008 et 2008/2009), une centaine d'échantillons de cidre a été prélevée sur 4 cuves différentes se déclinant sous deux AOC et trois savoirs faire (industriel, artisanal et fermier). Les teneurs en sucres ont été déterminées par dosage enzymatique, les acides malique et lactique ont été dosés par CLHP/UV et les composés volatils ont été suivis par CPG/SM après SPE et concentration. De ma
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Bigot, Annabelle. "Etude par sonde atomique tomographique de la précipitation durcissante d'alliages d'aluminium des séries 2XXX, 6XXX et 7XXX." Rouen, 1998. http://www.theses.fr/1998ROUES026.

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Les séquences de précipitation d'alliages d'aluminium à durcissement structural appartenant aux séries 2XXX (Al-Cu), 6 XXX (Al-Mg-Si-(Cu)) et 7 XXX (Al-Zn-Mg-(Cu)) ont été étudiées par microscopie ionique et sonde atomique tomographique. Cet instrument permet de caractériser les matériaux métalliques avec une résolution subnanométrique et d'établir des cartographies tridimensionnelles des différents éléments dans le volume analysé. Nous avons déterminé les compositions des zones de Guinier-Preston et des phases stables et métastables formées lors des traitements de vieillissement à la températ
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Books on the topic "Phase and chemical composition"

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1937-, Rao M. A., and Hartel Richard W. 1951-, eds. Phase/state transitions in foods: Chemical, structural, and rheological changes. M. Dekker, 1998.

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L, Knobel LeRoy, United States. Dept. of Energy., and Geological Survey (U.S.), eds. Chemical composition of selected solid-phase samples from the Snake River Plain aquifer system and contributing drainages, eastern Idaho and western Wyoming. U.S. Dept. of the Interior, U.S. Geological Survey, 2001.

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A, Prisyazhnaya A., and Kovács-Láng E, eds. Soil liquid phase composition. Elsevier, 2001.

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Wolfrum, J., H. R. Volpp, R. Rannacher, and J. Warnatz, eds. Gas Phase Chemical Reaction Systems. Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80299-7.

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Darrell, Koza, and Cleef-Toedt Kathleen Van, eds. Chemical composition of everyday products. Greenwood Press, 2005.

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SHAHIN, MISHRA HARSHA PATHAN. CHEMICAL COMPOSITION OF KULTHI SEEDS. LAP LAMBERT ACADEMIC PUBL, 2011.

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Serebryakov, Andrey, Tat'yana Smirnova, Valentina Mercheva, and Elena Soboleva. Chemistry of combustible minerals. INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1041945.

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This textbook is a publication of the latest generation, designed to optimize the national project "Education"; develops theoretical knowledge about the genesis of natural liquid, gaseous and solid combustible minerals, the formation of the composition and properties, the practical significance of fuel and energy natural complexes. It is devoted to the study of the composition, properties and classification of oils, gas condensate, natural gases and solid combustible minerals, studied at the level of modern achievements of instrumental analytical and factory equipment in accordance with existi
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P, Bansal Narottam, and United States. National Aeronautics and Space Administration., eds. Phase transformations in xerogels of mullite composition. National Aeronautics and Space Administration, 1989.

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P, Bansal Narottam, and United States. National Aeronautics and Space Administration., eds. Phase transformations in xerogels of mullite composition. National Aeronautics and Space Administration, 1989.

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Kister, Henry Z. Equipment for distillation, gas absorption, phase dispersion, and phase separation. McGraw-Hill, 2008.

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Book chapters on the topic "Phase and chemical composition"

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Lin, Wang, Xu Dan, Feng Jianxin, Cui Hanlong, Wang Wenhui, and Zhu Yingxi. "Solid-Liquid Equilibria of Ternary Systems UO2(NO3)2 + HNO3 + H2O and UF4 + HF + H2O at 298 K." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_42.

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AbstractUO2(NO3)2 and UF4 are significant intermediates that connect different chemical unit operations (such as dissolution, evaporation, concentration, extraction and etc.) in uranium chemical industry. Commonly, there is a basic physicochemical question about phase equilibrium of ternary systems UO2(NO3)2 + HNO3 + H2O and UF4 + HF + H2O, it is crucial to understand the phase behavior and thermodynamic properties of them with the continuous development of uranium chemical industry. In this study, solid-liquid phase equilibria of ternary systems UO2(NO3)2 + HNO3 + H2O and UF4 + HF + H2O at 29
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Schoß, Johannes Paul, Andreas Keßler, Claudia Dommaschk, Michal Szucki, and Gotthard Wolf. "Precipitation of Iron-Containing Intermetallic Phases from Aluminum Alloys by Metal Melt Filtration." In Multifunctional Ceramic Filter Systems for Metal Melt Filtration. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-40930-1_31.

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AbstractIron (Fe) provides a non-reactive dissolved impurity in aluminum (Al) alloys, which forms a coarse, plate-shaped intermetallic β-phase during solidification. This β-phase is detrimental to the mechanical and casting properties. Therefore, the reduction of Fe by binding in Fe-containing intermetal-lics (sludge phase) was realized via a two-stage procedure, which consisted of conditioning of the melt by manganese (Mn) and chromium (Cr) with subsequent-ly applied metal melt filtration. For this purpose, the formation characteristics of the Fe-rich intermetallic phases were investigated re
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Ma, Tengfei, Fu Feng, Xuefeng She, Jingsong Wang, and Qingguo Xue. "Effect of Chemical Composition on the Crystallization Behaviour of Rare Earth Phase in Slag." In 10th International Symposium on High-Temperature Metallurgical Processing. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05955-2_42.

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Żelechower, Michał, Danuta Smołka, Mariola Jabłońska, and Andrzej Dytkowicz. "Determination of Chemical and Phase Composition of Fly-Ashes by Combined EPMA and XRD Methods." In Modern Developments and Applications in Microbeam Analysis. Springer Vienna, 1998. http://dx.doi.org/10.1007/978-3-7091-7506-4_29.

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Waanders, F. B., and J. Nell. "Phase chemical composition of slag from a direct nickel flash furnace and associated slag cleaning furnace." In ISIAME 2012. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6491-0_36.

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Jović, V. D., U. Č. Lačnjevac, and B. M. Jović. "Morphology, Chemical, and Phase Composition of Electrodeposited Co–Ni, Fe–Ni, and Mo–Ni–O Powders." In Modern Aspects of Electrochemistry. Springer US, 2012. http://dx.doi.org/10.1007/978-1-4614-2380-5_5.

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Burakov, B. E., S. I. Shabalev, and E. B. Anderson. "Principal Features of Chernobyl Hot Particles: Phase, Chemical and Radionuclide Compositions." In Role of Interfaces in Environmental Protection. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0183-0_10.

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Hammerschmidt, T., J. Koßmann, C. H. Zenk, et al. "The Role of Local Chemical Composition for TCP Phase Precipitation in Ni-Base and Co-Base Superalloys." In Superalloys 2016. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119075646.ch10.

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Jiang, Y. F., H. Y. Li, J. Chen, X. Q. Shi, and Y. X. Zhu. "Study on Composition Design of Enamel Coating and Its Resistance to Active Metal Vapor Corrosion." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_36.

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AbstractAfter evaporation of cerium metal (simulated radioactive substance) in a stainless steel plate in a production process, Ce and Fe elements are interdiffused at the bonding interface and Ce-Fe solid solution is formed. There are problems such as incomplete recovery of attached materials and increased surface roughness at the interface, which cannot be reused. In order to reduce radioactive iste generation, metallic enamel coating is prepared on stainless steel substrate with SiO2, Al2O3, Na2O, K2O, CaF2 and CoO and its resistance to active metal vapor corrosion at high temperature is st
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Fonstein, Nina. "The Effect of Chemical Composition on Formation of Ferrite–Martensite Structures and Mechanical Properties of Dual-Phase Steels." In Advanced High Strength Sheet Steels. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19165-2_4.

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Conference papers on the topic "Phase and chemical composition"

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Hölzer, Jonas I., Dimitrii N. Kozlov, and Thomas Seeger. "Ammonia-Nitrogen Gas Phase Diagnostics Applying Laser-Induced Electrostrictive and Thermal Gratings." In Laser Applications to Chemical, Security and Environmental Analysis. Optica Publishing Group, 2024. https://doi.org/10.1364/lacsea.2024.lw3e.4.

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Pump-laser absorption of ammonia at 1064nm may generate a thermal contribution to a laser-induced grating (LIG) in ammonia-nitrogen gas mixtures. We demonstrate a simplified approach for simultaneous mixture composition and temperature evaluation in this system using the LIG technique.
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Zhang, Hao, and Zachary J. Smith. "Rapid intracellular detection and analysis of lipid droplets' morpho-chemical composition by phase-guided Raman sampling." In Optics in Health Care and Biomedical Optics XIV, edited by Qingming Luo, Xingde Li, Ying Gu, and Dan Zhu. SPIE, 2024. http://dx.doi.org/10.1117/12.3034573.

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Jackson, Tracey, Kung-Po Chao, and Ya Liu. "Detection of H2S in Oilfield Chemicals." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-21181.

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Abstract For several years chemical vendors and oilfield operators have measured H2S presumably generated in situ in oilfield products, specifically corrosion inhibitors and combination scale and corrosion inhibitors. Sometimes when handling oilfield chemicals, a personal H2S monitor will be triggered with the assumption that this response is from H2S. Since the alert is triggered in close proximity to some oilfield chemicals or even while opening the chemical container, the logical conclusion is that the product contains H2S; however, these monitors are likely detecting vapor phase water-solu
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Shakirzyanov, R. I., Yuriy A. Garanin, Artem L. Kozlovskiy, Dmitriy I. Shlimas, Maxim V. Zdorovets, and Dilnaz K. Zhamikhanova. "Study of Phase Composition and Microstructure of Porous Alumina Ceramics Derived from Hydrothermal Powders." In 2024 8th International Conference on Materials Engineering and Nano Sciences & 2024 8th International Conference on Material Engineering and Manufacturing. Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-k3kqa8.

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Conventional ceramic technology is a widespread technique for synthesizing a large range of materials for household use and engineering applications. However, for advanced technical ceramics different approaches should be used in order to obtain materials with unique physical properties. Despite the well-known technology for the synthesis of alumina-based ceramics, there are a lot of challenges in optimizing manufacturing conditions or integrating the newest technologies. In particular, there are still some challenges in sintering porous bulk ceramics. In this paper, we report on synthesizing
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Woollam, Richard C. "Partitioning of Multi-Component Surfactants Systems in Oil and Water." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16864.

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Abstract Many production chemicals are complex mixtures of surfactants yet are described by a single partition characteristic such oil soluble or water soluble. This paper presents a simple model of multi-component surfactant mixture partitioning based on the work of Zhu and Free. The model is extended to show how the composition of the production chemical changes as the oil/water ratio changes. The results show that the composition of the original production chemical in either the oil or water phases is rarely the same as the neat product on injection and can vary substantially as the water-c
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Hinkson, Dezra, Marc Singer, Ziru Zhang, and Srdjan Nesic. "A Study of the Chemical Composition and Corrosivity of the Condensate in Top of the Line Corrosion." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08466.

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Abstract The three key aspects of the top of the line corrosion process are condensation, chemical speciation and corrosion. The focus of this study is on the condensate speciation through a thermodynamic approach. Specifically, the aim of this study is to determine the concentration of acetic acid in the condensate. The presence of acetic acid tends to increase the corrosion rate and to promote localized corrosion. The results of this study show that the concentration of free acetic acid in the condensate is determined predominantly by the pH of the liquid phase, which is changed by the corro
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Ionescu, Alexandra-Ioana, and Constantin Butoi. "STUDY REGARDING THE BEST SWEETENERS USED IN GREEN-TEA BASED SUPPLEMENTS." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s25.30.

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Green tea-based food supplements are very attractive to a large group of consumers and make an important contribution to maintaining good health. In order to preserve the nutritional value of supplements of this type, pesticide and plant growth hormones-free green tea is used as raw material. Choosing the best sweeteners in this case is an important part of scientific research, especially for consumers with certain digestive conditions. The aim of this paper is to successfully identify the best way to sweeten green tea by testing and selecting the best sweetener. In this mode results an interm
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Lin, Chia-Hsien. "Isolating the effects of chemical composition in the equation of state." In EQUATION-OF-STATE AND PHASE-TRANSITION ISSUES IN MODELS OF ORDINARY ASTROPHYSICAL MATTER. AIP, 2004. http://dx.doi.org/10.1063/1.1828407.

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Borshcheva, E. V. "The three-phase astrochemical code: modeling of the molecular cloud composition." In Всероссийская с международным участием научная конференция студентов и молодых ученых, посвященная памяти Полины Евгеньевны Захаровой «Астрономия и исследование космического пространства». Ural University Press, 2021. http://dx.doi.org/10.15826/b978-5-7996-3229-8.21.

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We describe the implementation of a three-phase astrochemical model (gas + ice surface + bulk) based on the two-phase Presta code (gas + dust surface) and provide results for calculating the molecular cloud composition. The two- and three-phase models produce significantly different chemical compositions. In particular, CO ice abundance in the three-phase model shows good agreement with the observational data, unlike the two-phase model.
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Yakimov, I. S., A. N. Zaloga, P. S. Dubinin, et al. "AUTOMATED SYSTEM FOR X-RAY PHASE ANALYSIS OF THE MINERAL-PHASE COMPOSITION OF ORES AND TECHNOLOGICAL PRODUCTS." In XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" named after corresponding member of the RAS Gennady Leonidovich PASHKOVA. Krasnoyarsk Science and Technology City Hall, 2023. http://dx.doi.org/10.47813/sfu.mnfrpm.2023.250-257.

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The properties of complex ores that determine the technologies for their processing are inherent in the minerals and their compositions, rather than individual chemical elements. Therefore, conventional production control based solely on the chemical composition cannot fully determine the quality and technological properties of ores and enrichment products. In recent years, the use of automated X-ray diffraction quantitative phase analysis (XRD QPA) using the full-profile Rietveld method [1] has been intensively developed in global practice for controlling the mineral composition. The essence
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Reports on the topic "Phase and chemical composition"

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Roberts, M. J., A. A. Garrison, E. C. Muly, and C. F. Moore. On-line chemical composition analyzer development. Phase 2, Final report. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10141328.

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Hedrick, Jacob, and Timothy Jacobs. PR-457-14201-R02 Variable NG Composition Effects in LB 2S Compressor Engines Phase I Engine Response. Pipeline Research Council International, Inc. (PRCI), 2015. http://dx.doi.org/10.55274/r0010997.

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This is the final report summarizing work completed during the first phase of the PRCI study on large bore two stroke lean burn integral compressor engine response to variable natural gas compositions for the purposes of engine control development. Accomplished tasks include the completion of a detailed literature review covering the research topic, a parametric study of laminar flame speeds and ignition delays for binary methane and ethane mixtures up to 30%, and a GT-Power engine model of the Colorado State GMV-4 research engine with associated validation data from CSU�s variable ethane effe
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Linker, Taylor, and Timothy Jacobs. PR-457-18204-R01 Variable Fuel Effects on Legacy Compressor Engines Phase IV - Predictive NOx Modeling. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011584.

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The ultimate goal of this work is to improve the current control methods for large bore, lean burn natural gas engines in order to combat performance and emissions issues during variable fuel composition events. This will be achieved in the long term by simulating the effects of variable fuel composition on a large bore, natural gas engine and developing engine control strategies which work to mitigate adverse effects. The work of Phase IV adds onto previous work by enabling the prediction of NOxemissions in the validated, full-scale engine simulation of a Cooper-Bessemer GMWH-10C developed in
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Fox, K. M., T. B. Edwards, M. C. Hsieh, and W. T. Riley. Chemical Composition Analysis and Product Consistency Tests of the ORP Phase 6 Nepheline Study Glasses. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1490313.

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Fox, K. M., T. B. Edwards, M. E. Caldwell, and W. T. Riley. Chemical Composition Analysis and Product Consistency Tests of the ORP Phase 5 Nepheline Study Glasses. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1419847.

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Komarova, Ekaterina, Ekaterina Kazantseva, Elizaveta Akimova, and Margarita Khimich. Effect of micro-arc oxidation voltage and duration on the morphology, phase structure, chemical composition of calcium phosphate coatings. Peeref, 2023. http://dx.doi.org/10.54985/peeref.2306p2985848.

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Field and Gunther. PR-365-08608-R02 MEMS Technology for Natural Gas-Liquid Quality Measurement (Phase II). Pipeline Research Council International, Inc. (PRCI), 2009. http://dx.doi.org/10.55274/r0010980.

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This report summarizes a follow-on task to the project in which SmallTech Consulting was asked by PRCI to undertake an evaluation of MEMS1 Technology for Natural Gas/Liquid Quality Measurement. SmallTech examined the feasibility of using MEMS-based sensors to determine chemical composition measurands of interest within a natural gas pipeline, at or near real-time. This update includes information on timing and estimated costs for collaboration with the most promising of the front-runner candidates as potential vendors or development partners for PRCI.
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Ebert, W. E., N. L. Dietz, and D. E. Janney. Effects of heat treatment and formulation on the phase composition and chemical durability of the EBR-ll ceramic waste form. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/881576.

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Jacobs, Timothy, and Jacob Hedrick. PR-457-14201-R03 Variable NG Composition Effects in LB 2S Compressor Engines - Prediction Enhancement. Pipeline Research Council International, Inc. (PRCI), 2017. http://dx.doi.org/10.55274/r0011406.

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Phase II of the project has focused on improving the initial analysis performed in the first phase by enhancing the various aspects of predictive combustion for lean burn spark ignition natural gas engines under variable composition fueling. These enhancements have incorporated validation data from a Cooper-Bessemer GMVH-10C3 engine located in New Jersey, which improves upon the lack of field data to bound the scope of composition variation. In simulation related endeavors, effort was made to improve the fundamental combustion physics related parameters, namely laminar flame speed, by developi
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Singhvi, Punit, Javier García Mainieri, Hasan Ozer, and Brajendra Sharma. Rheology-Chemical Based Procedure to Evaluate Additives/Modifiers Used in Asphalt Binders for Performance Enhancements: Phase 2. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-020.

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The increased use of softer binders in Illinois over the past decade is primarily attributed to the increased use of recycled materials in asphalt pavement construction. The shift in demand of using PG 58-28 over PG 64-22 has resulted in potential alternative methods to produce softer binders more economically using proprietary products. However, there are challenges in using these proprietary products for asphalt modification because of uncertainty in their long-term performance and significant variability in binder chemistry. The current SuperPave performance grading specification for asphal
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