Relevant bibliographies by topics / Physical 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 'Physical and chemical composition'

Author: Grafiati
Published: 7 September 2021
Last updated: 25 July 2025

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Journal articles on the topic "Physical and chemical composition"

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Belousova, E.E., E.V. Khomutova, and N.V. Yablochkova. "SYNTHESIS AND PHYSICAL-CHEMICAL PROPERTIES OF SODIUM PERBORATE." Bulletin of Donetsk National University. Series А. Natural Sciences, no. 1 (May 31, 2024): 65–74. https://doi.org/10.5281/zenodo.12532079.

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Optimal conditions for the synthesis of sodium perborate are proposed through the chemical interaction of sodium tetraborate, hydrogen peroxide and sodium hydroxide in a peroxide environment. Based on the data of chemical analysis and physicochemical studies, its identification was carried out, it was established that the stoichiometric composition of NaBO3•4H2O depends on the concentration of the initial reagents and the synthesis temperature. Using thermogravimetric, X-ray phase analysis and IR spectroscopy methods, thermoanalytical studies of tetrahydrate crystalline hydrate were carri
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Li, Chih-Shan, and Fu-Tien Jenq. "Physical and Chemical Composition of Hospital Waste." Infection Control and Hospital Epidemiology 14, no. 3 (1993): 145–50. http://dx.doi.org/10.2307/30148478.

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Li, Chih-Shan, and Fu-Tien Jenq. "Physical and Chemical Composition of Hospital Waste." Infection Control & Hospital Epidemiology 14, no. 3 (1993): 145–50. http://dx.doi.org/10.1086/646700.

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AbstractFor selecting the most efficient treatment method of hospital waste, the composition analysis is generally considered to be the fundamental information. Currently, there are few studies regarding the characteristics of hospital waste. This study evaluated the physical and elemental composition of the hospital waste at the National Taiwan University Hospital (NTUH). The results should help us design an incinerator for the treatment of infectious waste, plastic syringes, pathological waste, and kitchen waste. During the study period, the estimated daily waste generation rate at NTUH was
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Viana, I. T. S., G. V. A. Fonseca, G. H. Bueno, and J. O. F. Melo. "Physical, Chemical-physical and chemical characterization of must and integral juice in grape cultivars." Scientific Electronic Archives 10, no. 3 (2017): 1. http://dx.doi.org/10.36560/1032017452.

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In recent years there has been an important increase in the production of grape derivatives such as integral grape juice. Thus, it was intended with the accomplishment of this study to evaluate the composition of the grape juice of the grape cultivars: Bordô, Concord e Isabel in the composition of integral grape juice from the Bento Gonçalves-RS. The samples were evaluated for classical analysis:°Brix, pH, titratable acidity, ratio Brix / titratable acidity made through methods, physics, physical chemistry and chemistry. The mineral elements sodium and potassium analyzed by flame emission and
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Gomes, Mariléa Batista, Maria Luciana Menezes Wanderley Neves, Lígia Maria Gomes Barreto, et al. "Prediction of carcass composition through measurements in vivo and measurements of the carcass of growing Santa Inês sheep." PLOS ONE 16, no. 3 (2021): e0247950. http://dx.doi.org/10.1371/journal.pone.0247950.

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In vivo and carcass measurements were evaluated to predict carcass physical and chemical composition and to list the measurements that best fit the prediction of the composition of growing Santa Inês sheep carcasses. Thirty-three animals were used to measure the loin eye area by ultrasound in vivo (LEAu) and in the carcass. We used 39 animals for biometric measurement in vivo and 42 sheep for morphometric measurement in the carcass. For the physical and chemical compositions of carcasses, dissection of the half left carcass was carried out in 42 animals. The data were submitted to Pearson’s co
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SUDA, Yuya, Yousuke TANAKA, and Tatsuhiko SAEKI. "FUNDAMENTAL STUDY ON CHEMICAL COMPOSITION AND PHYSICAL PROPERTIES." Doboku Gakkai Ronbunshuu E 66, no. 4 (2010): 528–44. http://dx.doi.org/10.2208/jsceje.66.528.

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Forati Rad, Hamzeh, and Hamid Reza Mohajerani. "Soil Corrosivity Investigation via Physical and Chemical Composition." Materials Performance 61, no. 8 (2022): 54–57. https://doi.org/10.5006/mp2022_61_8-54.

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In this work, soil corrosivity of the central desert of Iran was investigated by analyzing the physical-chemical characteristics of soils, weight loss testing, and electrochemical measurements. The most important factors affecting soil corrosivity that have been considered in this study are electrical resistivity, pH, redox potential, sulfides, moisture, soluble salts, chlorides, and cations content. The corrosion rate of soil in different areas of the central desert of Iran is in the range of 0.029 to 0.097 mm/y and 0.037 to 0108 mm/y with respect to field and laboratory corrosion experiments
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Ovchynnikova, N. B. "ABOUT CHEMICAL COMPOSITION OF MINERAL WATERS: CHEMICAL ANALOGIES AND PHYSICAL PROPERTIES." Geological Journal, no. 2 (June 22, 2017): 80–92. http://dx.doi.org/10.30836/igs.1025-6814.2017.2.108247.

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Bojarska, Justyna Ewa, Beata Piłat, Katarzyna Małgorzata Majewska, Daria Anna Sobiechowska, and Agnieszka Narwojsz. "Selected physical parameters and chemical compounds of different types of tomatoes." Czech Journal of Food Sciences 38, No. 1 (2020): 28–35. http://dx.doi.org/10.17221/232/2019-cjfs.

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The aim of this experiment was to compare selected types and varieties of tomatoes (‘Beef-red’, ‘Beef-orange’, ‘Olmeca’, ‘Malinowy’, ‘Cherry-red’, ‘Cherry-mini malina’, ‘Cherry-orange’, ‘Papryczkowy’) by examining their chemical composition and identifying the selected physical properties. The research material consisted of tomato fruit purchased on the regional market (Warmia and Mazury voivodeship, Poland) from one producer. An analysis of colour and texture measurement was performed. Moreover, the total dry matter content, total extract, total acidity, pH value, pectin content, total carote
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Fedosova, N. I., N. L. Cheremshenko, K. I. Hetman, et al. "Physical-Chemical and Cytotoxic Properties of Bacillus subtilis IMV B-7724 Extracellular Lectin." Mikrobiolohichnyi Zhurnal 83, no. 1 (2021): 39–48. http://dx.doi.org/10.15407/microbiolj83.01.039.

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Aim. To study the chemical composition, sugar specificity and physicochemical properties of the extracellular lectin isolated from Bacillus subtilis ІМV В-7724. Methods. Biochemical, spectrophotometric, immunological and cultural methods were used to assess the physicochemical and a number of biological properties of lectin isolated from the culture fluid of bacteria B. subtilis ІМV В-7724. Molecular weight of the lectin was estimated in polyacrylamide gel electrophoresis. Analysis of the elemental composition was done using Perkin-Elmer 2400 CHNS analyzer. Temperature and pH stability of lect
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Dissertations / Theses on the topic "Physical and chemical composition"

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Rahman, Md Mostafizur. "Influences of biodiesel chemical compositions and physical properties on engine exhaust particle emissions." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/82754/8/Md_Rahman_Thesis.pdf.

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This thesis presents a comprehensive study on the influences of biodiesel chemical composition and physical properties on diesel engine exhaust particle emissions. It examines biodiesels from several feedstocks having wide variations in their chemical composition (carbon chain length, unsaturation and oxygen content) and physical properties (density, viscosity, surface tension, boiling point etc.), and evaluates their influence on exhaust particle emissions. The outcome of this thesis is significant since it reveals the importance of regulating biodiesels chemical composition in order to ensur
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Chen, James. "In-situ study of the chemical composition of photochromic Yttrium Oxy-Hydrides thin films." Thesis, Uppsala universitet, Tillämpad kärnfysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-389390.

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Mohamed, Guma E. T. "Physical and chemical composition of particulate pollutants in an urban area of Cardiff, Wales." Thesis, Cardiff Metropolitan University, 2012. http://hdl.handle.net/10369/4738.

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The issue of particulate matter (PM) and associated health and environmental problems has been subjected to extensive research in a number of countries. However, there are no recent studies concerning the physical and chemical properties of PM from urban Cardiff. Measurements were made to study particulate matter, their sources, chemical compositions, gaseous precursors and their seasonal variations in urban Cardiff (latitude: 51° 28´ 59.47¨N and longitude: 03° 09´ 58.08¨W) from December 2009 to November 2010. A low volume air sampler for PM10 and PM2.5 particles, and real-time air samplers fo
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Pourkhesalian, Ali Mohammad. "Effects of biodiesel chemical composition on the chemical and physical properties of the primary and secondary diesel particulate matter." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/86757/14/86757_Ali_Mohammad_Pourkhesalian_Thesis.pdf.

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This thesis improves our insight towards the effects of using biodiesels on the particulate matter emission of diesel engines and contributes to our understanding of their potential adverse health effects. The novelty of this project is the use of biodiesel fuel with controlled chemical composition that enables us to relate changes of physiochemical properties of particles to specific properties of the biodiesel. For the first time, the possibility of a correlation of the volatility and the Reactive Oxygen Species concentration of the particles is investigated versus the saturation, oxygen con
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Elling, Jodi L. "Chemical composition and physical properties of 20% milk fat reformulated creams manufactured from reduced cholesterol butteroil." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-03242009-040416/.

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Stonkutė, Edita. "Chemical composition of kinematically identified galactic stellar group." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130925_093107-33619.

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A number of stellar streams, moving and kinematic groups were identified in the Milky Way galaxy. Some of them are suspected to originate from accreted satellites. Can we also find such traces of ancient merger events in the solar neighbourhood? Helmi et al. (2006) identified three new coherent groups of stars in the Geneva-Copenhagen survey (Nordström et al. 2004) and suggested that those might correspond to remains of disrupted satellites. With the detailed chemical composition analysis of the newly identified kinematic group we aim to contribute to the Galactic substructure studies. The ma
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Weis, Ryan Nicholas. "Independent effects of energy intake and body weight on physical and chemical body composition in growing pigs." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58387.pdf.

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Shilton, Vaughan Francis. "The significance of indoor:outdoor relationships, and physical and chemical composition in personal exposure to urban particulate matter." Thesis, University of Wolverhampton, 2003. http://hdl.handle.net/2436/88474.

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Coudenys, Kimberley Troy. "The effect of body weight and energy intake on the physical and chemical body composition in growing-finishing pigs." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ35877.pdf.

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Cotiyane, Phumlile L. "The response of microalgal biomass and community composition to the chemical and physical dynamics of two Eastern Cape estuaries." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/4999.

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Water quality characteristics of estuaries are influenced by both natural and anthropogenic activities. Estuaries situated in coastal urban areas are exposed to more perturbations than those in rural settings. This study determined the drivers of phytoplankton biomass and community composition in two Eastern Cape estuaries and evaluated the anthropogenic activities that influence the overall health of each estuary. The estuaries were sampled in summer and winter (2014, 2015). The water quality of the estuaries was determined by measuring the variability in physico-chemical parameters (salinity
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Books on the topic "Physical and chemical composition"

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David, Firestone, ed. Physical and chemical characteristics of oils, fats, and waxes. 2nd ed. AOCS Press, 2006.

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Rourke, R. V. Chemical and physical properties of the Danforth, Elliottsville, Peacham and Penquis soil map units. Department of applied Ecology and Environmental Sciences, University of Maine, 1997.

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Rourke, R. V. Chemical and physical properties of the Mapleton, Monson, Saddleback, and Sisk soil map units. Department of applied Ecology and Environmental Sciences, University of Maine, 1998.

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Rourke, R. V. Chemical and physical properties of the Mapleton, Monson, Saddleback, and Sisk soil map units. Dept. of Applied Ecology and Environmental Sciences, University of Maine, 1998.

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Edwin, López, Lugo Ariel E, and International Institute of Tropical Forestry (Río Piedras, San Juan, P.R.), eds. Chemical and physical analyses of selected plants and soils from Puerto Rico (1981-1990). U.S. Dept. of Agriculture, Forest Service, International Institute of Tropical Forestry, 1997.

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Sánchez, Mary Jeane. Chemical and physical analyses of selected plants and soils from Puerto Rico (1981-1990). U.S. Dept. of Agriculture, Forest Service, International Institute of Tropical Forestry, 1997.

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Moore, Craig R. Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1969-80. Dept. of the Interior, U.S. Geological Survey, 1989.

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Reif, Andrew G. Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1981-94. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Chester County Water Resources Authority and Geological Survey (U.S.), eds. Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1981-94. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Reif, Andrew G. Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1981-94. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Book chapters on the topic "Physical and chemical composition"

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Robbins, Clarence R. "Chemical Composition." In Chemical and Physical Behavior of Human Hair. Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4757-2009-9_2.

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Robbins, Clarence R. "Chemical Composition." In Chemical and Physical Behavior of Human Hair. Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4757-3898-8_2.

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Robbins, Clarence R. "Chemical Composition of Different Hair Types." In Chemical and Physical Behavior of Human Hair. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-25611-0_2.

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Dawson, J. B. "Upper mantle metasomatism: Chemical and physical consequences." In Composition, Structure and Dynamics of the Lithosphere‐Asthenosphere System. American Geophysical Union, 1987. http://dx.doi.org/10.1029/gd016p0155.

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Schlager, Hans, Volker Grewe, and Anke Roiger. "Chemical Composition of the Atmosphere." In Atmospheric Physics. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30183-4_2.

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Jessberger, E. K., J. Kissel, H. Fechtig, and F. R. Krueger. "On the Average Chemical Composition of Cometary Dust." In Physical Processes in Comets, Stars and Active Galaxies. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72640-8_3.

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Gigas, Detlef. "The Chemical Composition of Vega." In The Impact of Very High S/N Spectroscopy on Stellar Physics. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2937-1_68.

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de Freitas Pacheco, J. A., R. Dell'Aglio, D. Costa, and S. J. Codina-Landaberry. "Chemical composition of Nova Centauri 1986." In Physics of Classical Novae. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/3-540-53500-4_126.

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Onuegbu, Ngozika Chioma. "Dacryodes edulis: Composition and Physico-chemical Properties." In Wild Fruits: Composition, Nutritional Value and Products. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31885-7_20.

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Alon, Noa, Roger Busche, Burkhard Tümmler, and John R. Riordan. "Membrane Lipids of Multidrug-Resistant Cells: Chemical Composition and Physical State." In Molecular and Cellular Biology of Multidrug Resistance in Tumor Cells. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3794-6_13.

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Conference papers on the topic "Physical and chemical composition"

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Pierce, C. C., and D. A. Grattan. "Chemical and Physical Parameters Controlling Polymer Performance in Boiler Systems." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88205.

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Abstract Water soluble polymers for internal boiler treatment should prevent precipitation of scaling salts and allow the formation of a very thin, corrosion protective film on heat transfer surfaces. Parameters controlling the performance of polymers will be presented and discussed. In particular, the effect of polymer molecular weight, complexing ability, chemical composition and thermal stability will be addressed.
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Yefimenko, Serhiy, Yevheniya Savchenko-Syniakova, and Volodymyr Stepashko. "System Modeling of Physical and Mechanical Properties of a Casting on its Chemical Composition." In 2024 14th International Conference on Advanced Computer Information Technologies (ACIT). IEEE, 2024. http://dx.doi.org/10.1109/acit62333.2024.10712560.

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Sherik, A. M., S. R. Zaidi, E. V. Tuzan, and J. P. Perez. "Black Powder in Gas Transmission Systems." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08415.

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Abstract Despite its common occurrence in the gas industry, black powder is a problem that is not well understood across the industry, in terms of its chemical and physical properties, source, formation, prevention or management of its impacts. In order to prevent or effectively manage the impacts of black powder, it is essential to have knowledge of its chemical and physical properties, formation mechanisms and sources. This paper is divided into two parts. The first part reviews the recent laboratory and field work conducted at Saudi Research and Development Center to determine the compositi
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Alkathafi, Maftah H., Robert A. Cottis, and Ramaier Narayanaswamy. "pH Measurement under a Simulated Disbonded Coating Using an Optical Fibre Chemical Sensor." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11276.

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Abstract The present paper is concerned with pH measurement under the disbonded coating of steel, pH was monitored at different locations down the crevice using optical fibre chemical sensor. A physical model was developed to understand the chemical and electrochemical conditions that created within a crevice beneath a disbonded coating. The physical model engaged a polyethylene film covering a crevice of controlled thickness, and exposed to a gas of controlled composition (air with 1% CO2) on the exterior of the film. The crevice was filled with a simulated ground water and pH measurement was
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Schmitt, Günter. "Present Day Knowledge of the Effect of Elemental Sulfur on Corrosion in Sour Gas Systems." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90039.

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Abstract The corrosive interaction of wet elemental sulfur with construction materials is reviewed emphasizing effects of alloy composition (carbon steels, ferritic steels, austenitic steels, ferritic-austenitic (duplex) steels, Ni- and Co-base alloys, titanium and its alloys), medium composition (salts, partial pressures of H2S and CO2, acetic acid), and environmental conditions (temperature (20-250°C), stress). A summary of relevant physical und chemical properties of elemental sulfur is given to provide the fundamental basis for the understanding of sulfur corrosion. The different corrosion
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Patel, Arvind D. "The Effects of Molecular Composition of Synthetic Base Fluids on Drilling Elastomers." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01112.

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Abstract Increasing environmental constraints have stimulated new developments in drilling fluid technology. To minimize environmental impact of conventional oil-base mud, more environmentally friendly synthetic-based drilling fluids, or muds (SBMs), have been developed. Although the synthetic base fluids (SBF) may be biodegradable and less toxic, some of them may be incompatible with downhole elastomers. Chemical and thermal degradation of the elastomers can change the physical properties such as volume, elongation, hardness, tear-strength, and tensile strength. These changes in elastomer phy
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Staebler, Richard R. "Comparison of Duplex to Austenitic Stainless Steels for Dot 407 and 412 Cargo Tanks in Liquid Chemical Service." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98628.

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Abstract U.S. Highway transportation of liquid chemicals has depended upon austenitic stainless steels (316 & 304) since the 1940's. This paper will compare these austenitics to the duplex stainless steels (UNS S31803 and S32205 both commonly known as 2205 and UNS S32304 commonly known as 2304) from various aspects such as: composition, mechanical and physical properties; corrosion resistance; design, manufacturing and welding of vessel; heating panel application on the bottom of the vessel; surface finish; DOT Regulations; and cost. Some actual experience with 2205 will be explained.
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Xiaorong Wu, Renyong Zhao, Donghai Wang, and Scott R. Bean. "Ethanol Production as Affected by Sorghum Chemical Composition, Chemical Structure and Physical Properties." In 2006 Portland, Oregon, July 9-12, 2006. American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.21034.

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Rani, Noreriyawaty Binti Mat, Badorul Hisham Bin Abu Bakar, and Hussin Bin Mamat. "Chemical composition of interlocking compressed earth bricks (ICEB)." In CHEMISTRY BEYOND BORDERS: INTERNATIONAL CONFERENCE ON PHYSICAL CHEMISTRY: The 1st Annual Meeting of the Physical Chemistry Division of the Indonesian Chemical Society. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0133093.

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Alhadas, H. M., R. V. Reis, G. A. P. Souza, et al. "Chemical and physical composition of different rib cuts in Nellore cattle." In 6th EAAP International Symposium on Energy and Protein Metabolism and Nutrition. Wageningen Academic Publishers, 2019. http://dx.doi.org/10.3920/978-90-8686-891-9_133.

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Reports on the topic "Physical and chemical composition"

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Duncan, R. A., J. K. Russell, N. L. Hastings, and R. G. Anderson. Relationships between chemical composition, physical properties, and geology of the mineralized Emerald Lake Pluton, Yukon Territory. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209481.

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Harbour, J. R., T. J. Miller, and M. J. Whitaker. The physical properties and chemical composition of the gas within the free volume of canistered waste forms. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6345502.

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Burroughs, Jedadiah, Jerry Paris, Charles Weiss, and Elizabeth McDevitt. Characterization and rheological examination of Charleroi Mix 2 paste constituents. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49719.

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This technical report details the testing plan, methodology, and results used to characterize the paste constituent materials for Charleroi Concrete Mixture 2. Raw materials were characterized for physical and chemical properties of interest including chemical composition, mineralogy, particle size, and absorption capacity. Isothermal calorimetry was used to study the reactivity of constituent materials, and rotational rheology was used to study the impact of various constituent materials on the expected workability and fluidity of the composite paste.
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Pavlova, Svetlana, Aleksandr Gorkusha, Sergey Tsybulya, Anna Nartova, Vladimir Rogov, and Lubov Isupova. Ln/Fe-doped Sr2TiO4 layered perovskites: Effect of synthesis method and composition on physical-chemical and catalytic properties in oxidative coupling of methane. Peeref, 2023. http://dx.doi.org/10.54985/peeref.2306p9583566.

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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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López-Galindo, Angie, Manuela Vargas-Rojas, and Jorge Medina-Perilla. Evaluation of Dicumyl Peroxide as a Coupling Agent in Thermoplastic Starch and BioPBS Composites. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.ss.bbb.8.

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To address plastic pollution from fossil fuel polymers, biodegradable alternatives like starch and polybutylene succinate (PBS) are proposed. However, starch is hydrophilic, while PBS and PBSA are hydrophobic. This research investigates the use of dicumyl peroxide (DCP) and tartaric acid (TA) as coupling agents in blends of thermoplastic starch (TPS) and PBS/PBSA, with glycerol as a plasticizer. Different weight/weight compositions of DCP and TA were added to blends in an internal mixer and subsequently compressed molded into films. DCP enhances tensile strength and ductility but increases tor
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Савосько, Василь Миколайович, Юлія Бєлик, and Юрій Васильович Лихолат. Ecological and Geological Determination of the Initial Pedogenesis on Devastated Lands in the Kryvyi Rih Iron Mining & Metallurgical District (Ukraine). Journ. Geol. Geograph. Geoecology, 2019. http://dx.doi.org/10.31812/123456789/3643.

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In our time, a very urgent problem is the cessation of negative impacts on the environment and the return to the practical use of the territories of devastated lands. In this regard, it is important to find out the basic laws of primary soil formation in the area of these man-made neoplasms. The initial soil formation conditions were analyzed on 19 experimental sites which represent the main varieties of devastated land in the Kryvyi Rih Iron Mining and Metallurgical District (Central Ukraine): (i) waste rock dumps of old iron mines (old name “Forges”), (ii) tailing storage facility of undergr
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Dodd, Hope, David Peitz, Gareth Rowell, et al. Protocol for Monitoring Fish Communities in Small Streams in the Heartland Inventory and Monitoring Network. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2284726.

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Fish communities are an important component of aquatic systems and are good bioindicators of ecosystem health. Land use changes in the Midwest have caused sedimentation, erosion, and nutrient loading that degrades and fragments habitat and impairs water quality. Because most small wadeable streams in the Heartland Inventory and Monitoring Network (HTLN) have a relatively small area of their watersheds located within park boundaries, these streams are at risk of degradation due to adjacent land use practices and other anthropogenic disturbances. Shifts in the physical and chemical properties of
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Roberts, M. J., A. A. Garrison, E. C. Muly, and C. F. Moore. On-line chemical composition analyzer development. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5010377.

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Garrison, A. A. On-line chemical composition analyzer development. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/6568144.

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