Letteratura scientifica selezionata sul tema "Gaz rares – Composés"
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Articoli di riviste sul tema "Gaz rares – Composés":
Dostie-Goulet, Eugénie, André Blais, Patrick Fournier e Elizabeth Gidengil. "L'abstention sélective, ou pourquoi certains jeunes qui votent au fédéral boudent les élections municipales". Canadian Journal of Political Science 45, n. 4 (dicembre 2012): 909–27. http://dx.doi.org/10.1017/s0008423912001084.
Lingenfelter, Eric A., Roger N. Williams, LeRoy W. Haynes e Dan S. Fickle. "Evaporation Rates of a Five-Component Attractant for the Rose Chafer (Coleoptera: Scarabaeidae)". Journal of Entomological Science 38, n. 1 (1 gennaio 2003): 104–10. http://dx.doi.org/10.18474/0749-8004-38.1.104.
Motagamwala, Ali Hussain, e James A. Dumesic. "Analysis of reaction schemes using maximum rates of constituent steps". Proceedings of the National Academy of Sciences 113, n. 21 (9 maggio 2016): E2879—E2888. http://dx.doi.org/10.1073/pnas.1605742113.
Khan, Sadiya S., Adam S. Vaughan, Katharine Harrington, Laura Seegmiller, Xiaoning Huang, Lindsay R. Pool, Matthew M. Davis et al. "US County–Level Variation in Preterm Birth Rates, 2007-2019". JAMA Network Open 6, n. 12 (8 dicembre 2023): e2346864. http://dx.doi.org/10.1001/jamanetworkopen.2023.46864.
Yang, Huan, Ivo Neefjes, Valtteri Tikkanen, Jakub Kubečka, Theo Kurtén, Hanna Vehkamäki e Bernhard Reischl. "Collision-sticking rates of acid–base clusters in the gas phase determined from atomistic simulation and a novel analytical interacting hard-sphere model". Atmospheric Chemistry and Physics 23, n. 10 (1 giugno 2023): 5993–6009. http://dx.doi.org/10.5194/acp-23-5993-2023.
Solarz, A., R. Thomas, F. M. Montenegro-Montes, M. Gromadzki, E. Donoso, M. Koprowski, L. Wyrzykowski, C. G. Diaz, E. Sani e M. Bilicki. "Spectroscopic observations of the machine-learning selected anomaly catalogue from the AllWISE Sky Survey". Astronomy & Astrophysics 642 (ottobre 2020): A103. http://dx.doi.org/10.1051/0004-6361/202038439.
FAVERDIN, P., e C. LEROUX. "Avant-propos". INRAE Productions Animales 26, n. 2 (16 aprile 2013): 71–76. http://dx.doi.org/10.20870/productions-animales.2013.26.2.3137.
Higashiyama, Nicole, Shaun Bulsara, Susan G. Hilsenbeck, Tiffaney Tran, Ria Brown, Mary Fang, Cathy Sullivan et al. "Genetic assessment of hereditary breast and ovarian cancer in the Harris Health System: A five-year, single-center experience." Journal of Clinical Oncology 39, n. 15_suppl (20 maggio 2021): 10587. http://dx.doi.org/10.1200/jco.2021.39.15_suppl.10587.
Liu, Emma J., Kieran Wood, Alessandro Aiuppa, Gaetano Giudice, Marcello Bitetto, Tobias P. Fischer, Brendan T. McCormick Kilbride, Terry Plank e Tom Hart. "Volcanic activity and gas emissions along the South Sandwich Arc". Bulletin of Volcanology 83, n. 1 (11 dicembre 2020). http://dx.doi.org/10.1007/s00445-020-01415-2.
Vozniak, Dmytro. "UNUSUAL PRIMARY INCLUSIONS OF CO2-FLUID AND AQUEOUS SOLUTION IN QUARTZ FROM VOLYNIAN CHAMBER PEGMATITES (GENETIC ASPECTS)". Mineralogical collection 72 (2022). http://dx.doi.org/10.30970/min.72.05.
Tesi sul tema "Gaz rares – Composés":
Alkaa, Ai͏̈ssa. "Etude des fonctions de distribution des électrons dans les plasmas froids composés de mélanges de gaz rares avec des vapeurs métalliques ou des gaz électronégatifs". Toulouse 3, 1991. http://www.theses.fr/1991TOU30137.
Marrocchi, Yves. "Incorporation des gaz rares dans la matière organique primitive du système solaire". Phd thesis, Institut National Polytechnique de Lorraine - INPL, 2005. http://tel.archives-ouvertes.fr/tel-00258016.
Bakiz, Bahcine. "Etude de systèmes de matériaux évolutifs : interactions solides-gaz, propriétés catalytiques et électriques dans le cas d'hydroxycarbonates, carbonate et oxydes à base de terres rares (La, Ce, Lu)". Toulon, 2010. https://theses.hal.science/tel-00602907/fr/.
The present work deals with the solid gas interactions between lanthanum and cerium based phases (hydroxycarbonates LaOHCO3, CeOHCO3, carbonate La2O2CO3, and oxides La2O3, CeO2), and the gases CH4, CO and CO2. These interactions might be involved in gas sensor or catalytic applications. The main interest of these rare earth based systems resides in the fact that they are evolving materials in environmental conditions. The initial hydroxycarbonate phases are synthesized via specific precipitation sol-gel routes. The phases La2O2CO3, La2O3 and CeO2 are obtained by thermal treatment of the hydroxycarbonates. The various phases are first characterized by X-ray diffraction. Their crystal sizes and morphologies are then determined by scanning and transmission electron microscopy (SEM, TEM). The catalytic interactions of these polycrystalline solids with air-CH4 and air-CO mixtures are studied making use of Fourier Transform Infrared spectroscopy of emitted gases, at various temperatures (100 to 550°C), and as a function of time. The conversions of CH4 and CO into CO2 are observed from air – gas flows crossing through polycrystalline walls of the polycrystalline catalytic materials. The catalytic efficiency is defined as being proportional to the FTIR absorbed intensities due to the CO2 molecules. These intensities depend on time and temperature. The electrical analyses of compacted pellets are performed by electrical impedance spectrometry at various temperatures. For a given temperature, the conversions of CO and CH4 into CO2 reach a stabilized level after an initiation time. This stabilized level increases with temperature and reaches a maximum value depending on material nature and specific area. The conversion of CO is obtained at temperatures lower than the ones observed for CH4. These time dependent catalytic conversions are modeled from an elemental Avrami’s approach. The carbonatation kinetics are determined first by thermal and thermogravimetry analyses, at fixed temperatures, as a function of time. Two steps in carbonatation are evidenced. Using electrical impedance spectrometry as a function of time and temperature the electrical evolutions of lanthanum and cerium based systems subjected to carbonatation and decarbonatation are analyzed. As a first step, the electrical responses associated with the phase modifications of the hydroxycarbonate phases LaOHCO3 and CeOHCO3 during thermal decomposition under air are determined. Then, the electrical signals due to carbonatation and decarbonatation processes are analyzed: the ionic mobility of CO3 2- ions in the carbonate solid is evaluated. The evolving series LaOHCO3-La2O2CO3 - La2O3 might be of a high interest in gas sensor systems, working at variable temperatures and sensitive to CH4, CO or CO2
Comte, Caroline. "Etudes des interactions de gaz rares avec des molécules organiques : inclusion de l'argon, du krypton et du xénon dans des molécules hôtes". Dijon, 1997. http://www.theses.fr/1997DIJOS064.
Almayrac, Matthieu. "Volatile element behaviour in cometary ice analogues under irradiation". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0320.
Comets represent some of the most pristine and unprocessed bodies in our solar system. As such, their analysis can provide a unique insight into the chemical makeup of the early Solar System. Furthermore, due to their volatile-rich nature, comets may have played an important role in delivering volatile elements (e.g., H, C, N, O) and organic materials to early Earth. Understanding how comets form can therefore provide a wealth of information on how the composition of volatile elements evolved in the solar system, from the pre-solar molecular cloud up until the formation of the terrestrial planets. Decades of cometary studies, and the recent ESA Rosetta mission to comet 67P/Churyumov-Gerasimenko (67P/C-G), have demonstrated that volatile species trapped in comets have a composition that is distinct from any other known reservoir in the Solar System. Cometary nitrogen, in particular, shows strong enrichments in the rare 15N isotope. The origin of these enrichments remains unclear, potentially reflecting the isotopic fractionation of an initial 15N-poor nebular gas, or inheritance from an unknown isotopic reservoir. During this PhD, I have developed an experimental setup to form cometary ices (i.e., water-rich ices formed at very low temperatures and pressures), with the overarching objective of exploring how volatile elements (including N and noble gases) were incorporated into cometary ice during water condensation from the protosolar nebula. Different temperatures of formation (from 28K to 80K) and irradiation conditions have been tested in order to investigate the conditions that best reproduce the actual volatile composition of comet 67P/C-G. It was found that condensing cometary ice analogues at temperatures ~70K is best able to reproduce the nitrogen and noble gas abundances measured in 67P/C-G. Moreover, we discovered that the incorporation of nitrogen and noble gases into, and subsequent release from, cometary ices does not produce significant isotope variations, indicating that isotope signatures in comets were most likely inherited from their environment of formation rather than the result of fractionation during ice formation. Finally, I also investigated the effect that UV irradiation can have on the composition of volatiles trapped within cometary ice. Irradiation during and after ice deposition was found to not have a significant effect on the isotopic composition of the trapped volatile species. However, it was discovered that irradiating the surface of the ice had a major effect on the release pattern of trapped volatiles, with the ice being retentive of trapped volatiles even after the amorphous-to-crystalline ice transition (120-140K), temperatures at which point all trapped volatiles are released from non-irradiated ice. The enhanced retention of volatiles in irradiated cometary ice may have major implications on the potential for comets to deliver volatile elements to the inner solar system
Bekaert, David V. "Isotopic constraints on the origin and nature of primitive material in the Solar System and on early Earth". Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0002.
The Earth formed some 4.5 Ga from the accumulation of dust, rocks and gas. The composition of these primitive materials is today recorded in meteorites. However, the origin of volatile elements within the atmosphere (e.g., H, C, N, O) remains poorly understood. By combining experimental approaches and the analysis of natural samples, I studied the composition of celestial objects comprising the ingredients required for the formation of the terrestrial atmosphere. These mainly correspond to volatile elements trapped in meteoritic organic materials and in the ice of cometary bodies. In order to better understand the timeline of Earth's formation and volatile accretion, I used noble gases (He, Ne, Ar, Kr, Xe) as tracers of the physical processes that occurred in the early Solar System and on primitive Earth. Whilst comets significantly contributed to the heavy noble gas budget of the terrestrial atmosphere (~20%), most of the other terrestrial volatile elements (including water, carbon and nitrogen) would have been supplied to Earth by chondrtitic bodies similar to meteorites. Once formed, the atmosphere evolved over geological periods of time, leading to the establishment of suitable environmental conditions for life to develop. The major processes that affected the mass and composition of the ancient atmosphere can be studied by investigating the isotopic evolution of atmospheric Xe, from 4.5 Ga to ~2 Ga. We investigate the possibility to bring constraints on the age of organic materials isolated from sedimentary ricks older than 2 Ga, using the isotopic signature of the Xe component that was trapped at the time of their formation. This method could have implications regarding the presumed age of the earliest remnants of organic life
Grigoriev, Ivan, e Joël Boissoles. "Etude par spectroscopie infra-rouge a transformee de fourier de l'absorption des composes fluores perturbes par des gaz rares". Rennes 1, 1996. http://www.theses.fr/1996REN10056.
Amarouche, Mohand. "Modelisation des agregats de gaz rares et dynamique d'ar : :(3)**(+)". Toulouse 3, 1988. http://www.theses.fr/1988TOU30135.
Alikhani, Mohammad Esmaïl. "Etude par spectroscopie de diffusion raman du piegeage de trois especes isotopiques de dihydrogene en matrice de gaz rares et d'azote : interpretation theorique des perturbations spectrales observees dans les gaz rares". Paris 6, 1988. http://www.theses.fr/1988PA066015.
Radouani, Abdelhak. "Réaction des atomes métastables de gaz rares (Ar*(3p2,0), Kr*(3p2) et Xe*(3p2)) avec le silane". Grenoble 1, 1986. http://www.theses.fr/1986GRE10143.
Capitoli di libri sul tema "Gaz rares – Composés":
Okumura, Taiga, Noriko Yamaguchi e Toshihiro Kogure. "Structure, Composition, and Physicochemical Properties of Radiocesium-Bearing Microparticles Emitted by the Fukushima Daiichi Nuclear Power Plant Accident". In Agricultural Implications of Fukushima Nuclear Accident (IV), 63–78. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9361-9_8.
Fytas, George, e Adam Patkowski. "Dynamic light scattering from polymers in solution and in bulk". In Dynamic Light Scattering, 440–70. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780198539421.003.0010.
Jacob, Mbarndouka Taamté, Nducol Nasser, Kountchou Noubé Michaux, Tchuente Siaka Yvette Flore e Saïdou. "Zigbee-Based Wireless Smart Device for Enclosed Space Real-Time Air Quality Monitoring: Experiment, Data Analysis and Risk Assessment". In Indoor Air Quality Assessment for Smart Environments. IOS Press, 2022. http://dx.doi.org/10.3233/aise220005.
Atti di convegni sul tema "Gaz rares – Composés":
Youren, Xu, Huang Liping, Fu Xiren e Yen Tungsheng. "Hot-Pressed Silicon Nitride Ceramics With Rare-Earth Oxides Additives". In ASME 1985 Beijing International Gas Turbine Symposium and Exposition. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/85-igt-92.
Guney, Hasan, Helby Ellen, Ayodeji Temitope Ajayi, Abdulla Ali AlAli e Mohamed Lamine Bezziane. "Detailed Core Studies and Facies Characterization of Tight Cambro-Ordovician and Devonian Reservoirs (Tinrhert Nord Block, Illizi Basin, Algeria)." In Gas & Oil Technology Showcase and Conference. SPE, 2023. http://dx.doi.org/10.2118/214160-ms.
Mosses, R. W., J. P. R. Wells, T. P. J. Han, H. G. Gallagher e M. Yamaga. "Spectroscopy of Rare-Earth Doped Perovskite Phase Strontium Lanthanum Aluminate". In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cthh47.
Morrison, Gerald L., e Chae Hwan Lim. "Effects of Tooth Width on Gas Labyrinth and Windback Seals Operating at Low Pressure Ratios". In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44266.
Pinelli, M., A. Mazzi e G. Russo. "Arrangement and Optimisation Turbocompressors in an Off-Shore Natural Gas Extraction Station". In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68031.
Roberts, John E. "The Allison 570/571 Gas Turbine for Patrol Boat Power". In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-142.
Li, Jiang, Stewart Suzanne e Abbott Jonathan. "New Formulation for High Temperature Acidizing Treatment Using Sustainably Sourced Additives". In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213608-ms.
Chen, Shaohua, Tianping Huang, Ming Han e Abdulkareem AlSofi. "An Enhanced Synergistic Effect in Surfactant-Polymer Flooding Under High-Temperature and High-Salinity Conditions". In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213399-ms.
Wan Bakar, Wan Zairani, Nur Shuhadah Japperi, Zulhelmi Amir, Arina Sauki e Mohd Fazril Irfan Ahmad Fuad. "Landfill Gas Resource Assessment - An Adaptation from Oil and Gas Exploration Technique". In 5th International Conference on Global Sustainability and Chemical Engineering 2021 (ICGSCE2021). Switzerland: Trans Tech Publications Ltd, 2023. http://dx.doi.org/10.4028/p-63x8p0.
Leonova, L. V., A. I. Antoshkina e Yu S. Simakova. "Specific minerals in bryozoan bioherms and polychaetian limestones (Kazanthip reserve, Crimea)". In All-Russia Lithological Meeting «Geology of reefs». Institute of Geology FRC Komi SC UB RAS, 2020. http://dx.doi.org/10.19110/98491-013-71-73.