Littérature scientifique sur le sujet « Chemical Significance »
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Articles de revues sur le sujet "Chemical Significance"
Debus, Allen G. « The Significance of Chemical History ». Ambix 32, no 1 (mars 1985) : 1–14. http://dx.doi.org/10.1179/amb.1985.32.1.1.
Texte intégralMaguire, R. James. « Significance of Environmental Chemical Measurements ». Journal of Great Lakes Research 13, no 2 (janvier 1987) : 101. http://dx.doi.org/10.1016/s0380-1330(87)71634-7.
Texte intégralHoshino, Mihoko, Mitsuyoshi Kimata, Norimasa Nishida et Masahiro Shimizu. « Crystal chemical significance of chemical zoning in dissakisite-(Ce) ». Physics and Chemistry of Minerals 35, no 2 (3 novembre 2007) : 59–70. http://dx.doi.org/10.1007/s00269-007-0198-y.
Texte intégralDAGANI, RON. « Big Bang findings carry chemical significance ». Chemical & ; Engineering News 70, no 18 (4 mai 1992) : 5–6. http://dx.doi.org/10.1021/cen-v070n018.p005.
Texte intégralMbosso, Emmanuel Jean Teinkela, René Wintjens, Bruno Ndjakou Lenta, Silvère Ngouela, Michel Rohmer et Etienne Tsamo. « Chemical Constituents fromGlyphaea brevisandMonodora myristica:Chemotaxonomic Significance ». Chemistry & ; Biodiversity 10, no 2 (février 2013) : 224–32. http://dx.doi.org/10.1002/cbdv.201100378.
Texte intégralGhanta Mahesh Reddy, Mehendra Shiradkar et Akula Kalyan Chakravarthy. « Chemical and Pharmacological Significance of 1,4-Dihydropyridines ». Current Organic Chemistry 11, no 10 (1 juillet 2007) : 847–52. http://dx.doi.org/10.2174/138527207781024058.
Texte intégralRisebrough, Robert W. « Chemical change in Antarctica—Significance ? A perspective ». Marine Pollution Bulletin 25, no 9-12 (janvier 1992) : 227–30. http://dx.doi.org/10.1016/0025-326x(92)90673-t.
Texte intégralSuk, William A., Kenneth Olden et Raymond S. H. Yang. « Chemical mixtures research : significance and future perspectives. » Environmental Health Perspectives 110, suppl 6 (décembre 2002) : 891–92. http://dx.doi.org/10.1289/ehp.110-1241268.
Texte intégralLERNER, RICHARD A. « Life's Cosmic Significance ». Chemical & ; Engineering News 73, no 20 (15 mai 1995) : 40–41. http://dx.doi.org/10.1021/cen-v073n020.p040.
Texte intégralMONDAL, Sourav, Nilanjan DE et Anita PAL. « Molecular descriptors of neural networks with chemical significance ». Revue Roumaine de Chimie 65, no 11 (2021) : 1031–44. http://dx.doi.org/10.33224/rrch.2020.65.11.08.
Texte intégralThèses sur le sujet "Chemical Significance"
Ismail, Baraem. « Dates : physico-chemical characteristics, total quality and nutritional significance ». Thesis, University of Central Lancashire, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275924.
Texte intégralBalasubramanian, Priya. « Characterization and Significance of Circulating Tumor Cells in Patients Obtained Using a Negative Depletion Technology ». The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1288151816.
Texte intégralSyed, Hassan Syed Shatir Asghrar. « Significance of surface-generated radicals in the gas-solid catalytic reactions ». Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/203.
Texte intégralShilton, 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.
Texte intégralCallicoat, Jeffrey Scott. « Significance of Mid-Miocene volcanism in northeast Nevada : petrographic, chemical, isotopic, and temporal importance of the Jarbidge Rhyolite ». Thesis, Kansas State University, 2010. http://hdl.handle.net/2097/6242.
Texte intégralDepartment of Geology
Matthew E. Brueseke
The Jarbidge Rhyolite of Elko County, Nevada, is approximately 26 mapped bodies of porphyritic rhyolite. Several of the bodies are truncated by the Idaho or Utah border, and extend into the states for an unknown distance. This study focuses on five bodies, the Mahoganies, two near Wild Horse Reservoir, the outcrop enclosing the Jarbidge Mountains, and one outcrop south of Wells. The study’s focus is providing field, petrography, geochemistry, oxygen isotope, and geochronology information about the five previously mentioned bodies. Physical volcanology encountered during this study indicates the sampled Jarbidge Rhyolite are effusive lava flows and domes that coalesced over the life of the volcanic system. First order approximations indicate that erupted products cover ~1,289 km2 and erupted material totals ~509 km3. Petrography indicates primary anhydrous mineral assemblages, assimilation of granitoid, possible assimilation of metamorphic rock and magma mixing of mafic and silicic bodies. Collectively, the Jarbidge Rhyolite lava flows sampled are compositionally restricted from rhyolite to high silica rhyolite and all samples demonstrate A-type magma characteristics. Compositions from different bodies overlap on Harker diagrams, and trace element ratios distinguish few flows from the other samples. Rare earth element patterns mimic one another, and incompatible trace element ratios overlap between bodies, likely indicating the presence of one large magma body. Oxygen isotope values for selected samples range 6.61-8.95%oVSMOW are coincident with normal igneous values. New 40Ar/39Ar geochronology indicates Jarbidge Rhyolite volcanism initiated ca. 16.7 Ma near Wild Horse Reservoir and was active at Bear Creek Summit ca.15.8 Ma. Local Steens Basalt, geochemistry, and Au-Ag mineralization indicate Jarbidge Rhyolite is similar to Middle Miocene silicic volcanics (e.g. Santa Rosa-Calico volcanic field) further west in the Oregon-Idaho-Nevada tristate region.
Bowers, Gregory Arland. « Chemical Applications in Techniques of Emerging Significance : Nanoparticle Transformation in Mitochondria and Relative Tautomer Populations in Cellular Automata ». Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1516085869626903.
Texte intégralJones, Russell Guy Ashley. « Two North American arthropods of clinical significance : their venoms and the development of specific antivenoms ». Thesis, Queen Mary, University of London, 2001. http://qmro.qmul.ac.uk/xmlui/handle/123456789/26248.
Texte intégralMatsuo, Koji. « Significance of dopamine D1 receptor signalling for steroidogenic differentiation of human induced pluripotent stem cells ». Kyoto University, 2018. http://hdl.handle.net/2433/232124.
Texte intégralBailey, Andrew Douglas. « An assessment of oxygen availability, iron build-up and the relative significance of free and attached bacteria, as factors affecting bio-oxidation of refractory gold-bearing sulphides at high solids concentrations ». Doctoral thesis, University of Cape Town, 1994. http://hdl.handle.net/11427/21417.
Texte intégralBacterial oxidation is currently finding significant application for the oxidative pretreatment of refractory gold-bearing sulphides. Plants processing sulphide concentrates have commonly been operated at solids concentrations of between 18 and 20 per cent (m/v) (Le 180 and 200 kg.m-3). At higher concentrations, a decline in the bio-oxidation rate has been observed. Other metallurgical processes, such as chemical leaching and cyanidation, are performed at higher solids concentrations of between 40 and 50 per cent (400 and 500 kg.m-3), providing an incentive to increase the solids concentration at which bio-oxidation plants are operated. A review of literature indicated the following factors to be potential causes of reduced bio-oxidation rates at high solids concentrations: oxygen and carbon dioxide mass transfer; a low bacteria-to-solids ratio; mechanical damage of the bacte.ria; and the build-up of inhibitory oxidation products. Interaction of these factors in the completely-mixed reactors that are commonly used for biooxidation, has confounded the interpretation of the effects of individual factors. Analysis of literature data revealed a link between the sulphide grade of a particular material and the highest solids concentration at which the bacterial oxidation rate was maximal. The oxygen demand is directly proportional to the sulphide concentration in the reactor. Correlations were used to predict the oxygen transfer potential in the experimental reactors and it was found that as long as the oxygen transfer potential exceeded the oxygen demand, the biooxidation rate was proportional to the solids concentration for a specific material. Wh~n the oxygen demand equalled or exceeded the oxygen transfer potential, then the bacterial oxidation rate was limited by oxygen availability. The sulphide grade is characteristic of a particular ore or concentrate and from the data analysis oxygen availabiiity appeared to be the underlying reason why low grade materials could be oxidised at the maximum specific bio-oxidation rate at far higher solids concentrations than high-grade f!laterials. Abstract ii The experiments performed in this study were designed to further investigate the apparent relationship, identified by analysis of literature data, between sulphide grade and the solids concentration at which the bacterial oxidation rate was maximal. The effect of both solids concentration and sulphide grade on the biooxidation rate was investigated and related to the oxygen availability in the reactor.
Gustavsson, Maria. « The Significance of Liquor-to-Wood Ratio on the Reaction Kinetics of Spruce Sulphate Pulping ». Thesis, Karlstad University, Faculty of Technology and Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-805.
Texte intégralIn 1957 Vroom presented an article that dealt with the kinetics of the sulphate cook. He showed that the lignin dissolution exhibited a temperature/time dependency that could be explained by the Arrhenius equation and that the reaction was of first order with respect to lignin. However, even before Vroom introduced the H-factor all wood components were assumed to react according to a first order reaction. In recent years progresses in this area have been made. Lignin for example is nowadays considered to dissolve during three parallel first order reactions, all with differences in activation energies.
When the kinetics are evaluated, several cooking series at different temperatures and concentrations of active cooking chemicals are needed. The data points obtained are then fitted into some equation. If the concentration of the active cooking chemicals is constant, the activation energies and the chemical dependency for the dissolution of wood components can easily be found. In order to simplify the evaluations of the kinetics, very high liquor-to-wood ratios are sometimes used, often as high as 50:1 or even 75:1. In this manner, the chemical concentrations are almost constant during the cook. The problem is that in the normal industrial cook where the liquor-to-wood ratio is about 4:1, the chemical concentration is not constant. This is due mostly to the alkali consumption that takes place in the cook for example when neutralising the acidic groups in the hemicelluloses.
A disadvantage with high liquor-to-wood ratios is the high dilution of the dissolved organic matter. A high concentration of dissolved lignin boosts the dissolution of the remaining lignin in the wood residue and xylan can redeposit on the fibres when its concentration in the cooking liquor is high.
The aim of this project was to describe how different liquor-to-wood ratios influence the kinetics during sulphate cooking of spruce.
Livres sur le sujet "Chemical Significance"
Billington, David C. Inositol phosphates : Chemical synthesis and biological significance. Weinheim : VCH Verlagsgeselschaft, 1993.
Trouver le texte intégralIsmail, Baraem. Dates : Physico-chemical characteristics, total quality and nutritional significance. Oxford : Oxford Brookes University, 2003.
Trouver le texte intégralCesare, Maltoni, Selikoff Irving J et New York Academy of Sciences., dir. Living in a chemical world : Occupational and environmental significance of industrial carcinogens. New York, N.Y : New York Academy of Sciences, 1988.
Trouver le texte intégral1947-, Hemminki K., et International Agency for Research on Cancer., dir. DNA adducts : Identification and biological significance. Lyon : International Agency for Research on Cancer, 1994.
Trouver le texte intégralK, Hemminki, et International Agency for Research on Cancer., dir. DNA adducts : Identification and biological significance. Lyon : IARC, 1993.
Trouver le texte intégralHe, Zhongqi, et Fengchang Wu, dir. Labile Organic Matter-Chemical Compositions, Function, and Significance in Soil and the Environment. Madison, WI, USA : Soil Science Society of America, Inc., 2015. http://dx.doi.org/10.2136/sssaspecpub62.
Texte intégralScerri, Eric R. The periodic table : Its story and its significance. Oxford : Oxford University Press, 2007.
Trouver le texte intégralA, Trivedi, Atomic Energy of Canada Limited. et Chalk River Laboratories. Environmental Research Branch., dir. Daily tritium intakes by people living near a heavy-water research reactor facility : Dosimetric significance. Chalk River, Ont : Environmental Research Branch, Chalk River Laboratories, 1997.
Trouver le texte intégralEmel, Arinç, Schenkman John B, Hodgson Ernest 1932- et NATO Advanced Study Institute on Molecular Aspects of Drug Metabolizing Enzymes (1993 : Kus̜adası, Turkey), dir. Molecular aspects of oxidative drug metabolizing enzymes : Their significance in environmental toxicology, chemical carcinogenesis, and health. Berlin : Springer-Verlag, 1995.
Trouver le texte intégralNATO Advanced Study Institute on Molecular Aspects of Drug Metabolizing Enzymes (1993 Kuşadası, Turkey). Molecular aspects of oxidative drug metabolizing enzymes : Their significance in environmental toxicology, chemical carcinogenesis, and health. Berlin : Springer-Verlag,in cooperation with NATO Scientific Affairs Division, 1995.
Trouver le texte intégralChapitres de livres sur le sujet "Chemical Significance"
Foo, L. Yeap, et Joseph J. Karchesy. « Chemical Nature of Phlobaphenes ». Dans Chemistry and Significance of Condensed Tannins, 109–18. Boston, MA : Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-7511-1_6.
Texte intégralBeMiller, James N. « Occurrence and Significance ». Dans Glycoscience : Chemistry and Chemical Biology I–III, 877–84. Berlin, Heidelberg : Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56874-9_25.
Texte intégralBeMiller, James N. « Occurrence and Significance ». Dans Glycoscience : Chemistry and Chemical Biology I–III, 1435–44. Berlin, Heidelberg : Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56874-9_32.
Texte intégralBeMiller, James N. « Occurrence and Significance ». Dans Glycoscience : Chemistry and Chemical Biology I–III, 1865–81. Berlin, Heidelberg : Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56874-9_43.
Texte intégralHolst, Otto. « Occurrence and Significance ». Dans Glycoscience : Chemistry and Chemical Biology I–III, 2083–96. Berlin, Heidelberg : Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56874-9_49.
Texte intégralWittmann, Valentin. « Occurrence and Significance ». Dans Glycoscience : Chemistry and Chemical Biology I–III, 2253–87. Berlin, Heidelberg : Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56874-9_54.
Texte intégralArcos, Joseph C., Mary F. Argus et Yin-tak Woo. « On Evidence for Preventive Significance of Dietary Supplementation ». Dans Chemical Induction of Cancer, 370–71. Boston, MA : Birkhäuser Boston, 1995. http://dx.doi.org/10.1007/978-1-4612-4076-1_19.
Texte intégralPaik, Woon Ki, et Sangduk Kim. « Protein Methylation : Chemical, Enzymological, and Biological Significance ». Dans Advances in Enzymology - and Related Areas of Molecular Biology, 227–86. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/9780470122877.ch5.
Texte intégralMarkert, Bernd, Stefan Fränzle et Simone Wünschmann. « Significance of Water (or Some Other Liquidosphere), Soil and Atmosphere for the Chemical Evolution ». Dans Chemical Evolution, 185–95. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-14355-2_5.
Texte intégralCatt, John A. « Loess—Its Formation, Transport and Economic Significance ». Dans Physical and Chemical Weathering in Geochemical Cycles, 113–42. Dordrecht : Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3071-1_6.
Texte intégralActes de conférences sur le sujet "Chemical Significance"
Dulin, Derek J., et Gaines S. Gibson. « Significance of Constituent Chemical age on Solid Rocket Propellant Regression Rates ». Dans 53rd AIAA Aerospace Sciences Meeting. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2015. http://dx.doi.org/10.2514/6.2015-0006.
Texte intégralKumar, Ashutosh, et Robin Marlar Rajendran. « Expediting Chemical Enhanced Oil Recovery Processes with Prediction of Chemical Reaction Yield Using Machine Learning ». Dans ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211832-ms.
Texte intégralGeyer, T. J., J. B. Gruber, M. E. Hills, C. E. Johnson, M. D. Seltzer, W. A. Weimer et R. B. Green. « Laser Applications at the Naval Weapons Center. » Dans Laser Applications to Chemical Analysis. Washington, D.C. : Optica Publishing Group, 1990. http://dx.doi.org/10.1364/laca.1990.tuc1.
Texte intégralZhang, Tongwei, Lucy Ko, Xun Sun, Di Meng et Scott Hamlin. « Chemical and Carbon Isotopic Gas Compositions from The Wolfcamp In Permian Basin and their Geological Significance ». Dans Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.3130.
Texte intégralSong, Q., Z. Xu, W. Lu, P. W. Bohn et GJ Blanchard. « Structure and Extended Electronic States in Molecular Assemblies of Hemicyanine Amphiphiles ». Dans Laser Applications to Chemical Analysis. Washington, D.C. : Optica Publishing Group, 1994. http://dx.doi.org/10.1364/laca.1994.wa.4.
Texte intégralWilliams, Peter J., Thomas L. White et J. Kenneth Torrance. « The Significance of Soil Freezing for Stress Corrosion Cracking ». Dans 1998 2nd International Pipeline Conference. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/ipc1998-2054.
Texte intégralRutar, Teodora, et Philip C. Malte. « NOx Formation in High-Pressure Jet-Stirred Reactors With Significance to Lean-Premixed Combustion Turbines ». Dans ASME Turbo Expo 2001 : Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0067.
Texte intégralIshizaki, Yoichi, et Futoshi Yonekawa. « Reorganize Significance of Mt, Ms and Plastic Zone Size Against LMSD Under Plastic Collapse Regime ». Dans ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-85187.
Texte intégralRoy, Shrabanti, Fatemeh Hadi et Omid Askari. « Detailed Chemical Mechanism Generation for Combustion of Ethanol-Air Mixture ». Dans ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10996.
Texte intégralPashkouskaya, I. D., N. I. Nechipurenko, A. P. Zajogin et T. A. Prokopenko. « CONTENT OF MACRO- AND MICROELEMENTS IN BLOOD AND HAIR WITH DETERMINATION OF THEIR DIAGNOSTIC SIGNIFICANCE IN PATIENTS WITH ISCHEMIC STROKE ». Dans SAKHAROV READINGS 2021 : ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2021. http://dx.doi.org/10.46646/sakh-2021-2-83-86.
Texte intégralRapports d'organisations sur le sujet "Chemical Significance"
Velsko, S. Null Hypothesis Significance Testing for Trace Chemical Weapon Analyte Detection. Office of Scientific and Technical Information (OSTI), décembre 2012. http://dx.doi.org/10.2172/1059082.
Texte intégralKumar, Devendra, et S. P. McGlynn. A Physico-Chemical Study of Some Areas of Fundamental Significance to Biophysics. Office of Scientific and Technical Information (OSTI), avril 1999. http://dx.doi.org/10.2172/7144.
Texte intégralMcGlynn, S. P., et D. Kumar. A physico-chemical study of some areas of fundamental significance to biophysics. Office of Scientific and Technical Information (OSTI), avril 1992. http://dx.doi.org/10.2172/7028757.
Texte intégralMcGlynn, S., et D. Kumar. A physico-chemical study of some areas of fundamental significance to biophysics. Office of Scientific and Technical Information (OSTI), avril 1992. http://dx.doi.org/10.2172/7036741.
Texte intégralMcGlynn, S. P. A physico-chemical study of some areas of fundamental significance to biophysics : Annual report, 1988--1989. Office of Scientific and Technical Information (OSTI), avril 1989. http://dx.doi.org/10.2172/6250143.
Texte intégralMcGlynn, S. P., et D. Kumar. A physico-chemical study of some areas of fundamental significance to biophysics. Annual report, 1991--1992. Office of Scientific and Technical Information (OSTI), avril 1992. http://dx.doi.org/10.2172/10172831.
Texte intégralMcGlynn, S. P., et D. Kumar. A physico-chemical study of some areas of fundamental significance to biophysics. Three-year comprehensive report, 1989--1992. Office of Scientific and Technical Information (OSTI), avril 1992. http://dx.doi.org/10.2172/10172455.
Texte intégralReilly-Collette, Marina, Brandon Booker, Kathryn Trubac, Tyler Elliott, Andrew Reichert, Charles Woodruff et Lien Senchak. Testing of dry decontamination technologies for chemical, biological, radiological, and nuclear (CBRN) response. Engineer Research and Development Center (U.S.), mai 2023. http://dx.doi.org/10.21079/11681/47032.
Texte intégralRizzo, T. R. Spectroscopic probes of vibrationally excited molecules at chemically significant energies. Office of Scientific and Technical Information (OSTI), avril 1993. http://dx.doi.org/10.2172/6666734.
Texte intégralRizzo, T. R. Spectroscopic probes of vibrationally excited molecules at chemically significant energies. Office of Scientific and Technical Information (OSTI), mars 1992. http://dx.doi.org/10.2172/5444957.
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