Academic literature on the topic 'Oxygen isotopes, atmospheric effects'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Oxygen isotopes, atmospheric effects.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Oxygen isotopes, atmospheric effects"

1

Passey, Benjamin H. "Reconstructing Terrestrial Environments Using Stable Isotopes in Fossil Teeth and Paleosol Carbonates." Paleontological Society Papers 18 (November 2012): 167–94. http://dx.doi.org/10.1017/s1089332600002606.

Full text
Abstract:
Carbon isotopes in Neogene-age fossil teeth and paleosol carbonates are commonly interpreted in the context of past distributions of C3 and C4 vegetation. These two plant types have very different distributions in relation to climate and ecology, and provide a robust basis for reconstructing terrestrial paleoclimates and paleoenvironments during the Neogene. Carbon isotopes in pre-Neogene fossil teeth are usually interpreted in the context of changes in the δ13C value of atmospheric CO2, and variable climate-dependent carbon-isotope discrimination in C3 plants. Carbon isotopes in pre-Neogene s
APA, Harvard, Vancouver, ISO, and other styles
2

Extier, Thomas, Thibaut Caley, and Didier M. Roche. "Modelling water isotopologues (1H2H16O, 1H217O) in the coupled numerical climate model iLOVECLIM (version 1.1.5)." Geoscientific Model Development 17, no. 5 (2024): 2117–39. http://dx.doi.org/10.5194/gmd-17-2117-2024.

Full text
Abstract:
Abstract. Stable water isotopes are used to infer changes in the hydrological cycle for different climate periods and various climatic archives. Following previous developments of δ18O in the coupled climate model of intermediate complexity, iLOVECLIM, we present here the implementation of the 1H2H16O and 1H217O water isotopes in the different components of this model and calculate the associated secondary markers deuterium excess (d-excess) and oxygen-17 excess (17O-excess) in the atmosphere and ocean. So far, the latter has only been modelled by the atmospheric model LMDZ4. Results of a 5000
APA, Harvard, Vancouver, ISO, and other styles
3

Michalski, G., S. K. Bhattacharya, and G. Girsch. "NO<sub>x</sub> cycle and the tropospheric ozone isotope anomaly: an experimental investigation." Atmospheric Chemistry and Physics 14, no. 10 (2014): 4935–53. http://dx.doi.org/10.5194/acp-14-4935-2014.

Full text
Abstract:
Abstract. The oxygen isotope composition of nitrogen oxides (NOx) in the atmosphere is a useful tool for understanding the oxidation of NOx into nitric acid / nitrate in the atmosphere. A set of experiments was conducted to examine change in isotopic composition of NOx due to NOx–O2–O3 photochemical cycling. At low NOx / O2 mixing ratios, NOx became progressively and nearly equally enriched in 17O and 18O over time until it reached a steady state with Δ17O values of 39.3 ± 1.9‰ and δ18O values of 84.2 ± 4‰, relative to the isotopic composition of the initial O2 gas. As the mixing ratios were i
APA, Harvard, Vancouver, ISO, and other styles
4

Gao, Jing, You He, Valerie Masson-Delmotte, and Tandong Yao. "ENSO Effects on Annual Variations of Summer Precipitation Stable Isotopes in Lhasa, Southern Tibetan Plateau." Journal of Climate 31, no. 3 (2018): 1173–82. http://dx.doi.org/10.1175/jcli-d-16-0868.1.

Full text
Abstract:
Abstract Although El Niño–Southern Oscillation (ENSO) influences the Indian summer monsoon, its impact on moisture transport toward the southern Tibetan Plateau (TP) remains poorly understood. Precipitation stable isotopes are useful indices for climate change in the TP. Classical interpretations of variations of precipitation stable isotopes focus on the local surface air temperature or precipitation amount. However, several of the latest studies suggested they may correlate with large-scale modes of variability, such as ENSO. This paper presents a detailed study of ENSO’s effect on annual va
APA, Harvard, Vancouver, ISO, and other styles
5

Nyamgerel, Yalalt, Yeongcheol Han, Minji Kim, Dongchan Koh, and Jeonghoon Lee. "Review on Applications of 17O in Hydrological Cycle." Molecules 26, no. 15 (2021): 4468. http://dx.doi.org/10.3390/molecules26154468.

Full text
Abstract:
The triple oxygen isotopes (16O, 17O, and 18O) are very useful in hydrological and climatological studies because of their sensitivity to environmental conditions. This review presents an overview of the published literature on the potential applications of 17O in hydrological studies. Dual-inlet isotope ratio mass spectrometry and laser absorption spectroscopy have been used to measure 17O, which provides information on atmospheric conditions at the moisture source and isotopic fractionations during transport and deposition processes. The variations of δ17O from the developed global meteoric
APA, Harvard, Vancouver, ISO, and other styles
6

Jiang, Zhuang, Joel Savarino, Becky Alexander, Joseph Erbland, Jean-Luc Jaffrezo, and Lei Geng. "Impacts of post-depositional processing on nitrate isotopes in the snow and the overlying atmosphere at Summit, Greenland." Cryosphere 16, no. 7 (2022): 2709–24. http://dx.doi.org/10.5194/tc-16-2709-2022.

Full text
Abstract:
Abstract. The effect of post-depositional processing on the preservation of snow nitrate isotopes at Summit, Greenland, remains a subject of debate and is relevant to the quantitative interpretation of ice-core nitrate (isotopic) records at high snow accumulation sites. Here we present the first year-round observations of atmospheric nitrate and its isotopic compositions at Summit and compare them with published surface snow and snowpack observations. The atmospheric δ15N(NO3-) remained negative throughout the year, ranging from −3.1 ‰ to −47.9 ‰ with a mean of (−14.8 ± 7.3) ‰ (n=54), and disp
APA, Harvard, Vancouver, ISO, and other styles
7

Schumacher, M., R. E. M. Neubert, H. A. J. Meijer, et al. "Oxygen isotopic signature of CO<sub>2</sub> from combustion processes." Atmospheric Chemistry and Physics Discussions 8, no. 6 (2008): 18993–9034. http://dx.doi.org/10.5194/acpd-8-18993-2008.

Full text
Abstract:
Abstract. For a comprehensive understanding of the global carbon cycle precise knowledge of all processes is necessary. Stable isotope (13C and 18O) abundances provide information for the qualification and the quantification of the diverse source and sink processes. This study focuses on the δ18O signature of CO2 from combustion processes, which are widely present both naturally (wild fires), and human induced (fossil fuel combustion, biomass burning) in the carbon cycle. All these combustion processes use atmospheric oxygen, of which the isotopic signature is assumed to be constant with time
APA, Harvard, Vancouver, ISO, and other styles
8

NOON, PHILIPPA E., M. J. LENG, C. ARROWSMITH, M. G. EDWORTHY, and R. J. STRACHAN. "Seasonal observations of stable isotope variations in a valley catchment, Signy Island, South Orkney Islands." Antarctic Science 14, no. 4 (2002): 333–42. http://dx.doi.org/10.1017/s0954102002000159.

Full text
Abstract:
The oxygen and hydrogen isotope composition of waters in a small valley at Signy Island, South Orkney Islands, were monitored over three summers (1999 to 2001). These stable isotopes track water movement through the catchment, especially seasonal precipitation and snow melt. All samples fall close to the regional meteoric water line but factors other than air temperature cause year-to-year variability. Residence times are in the order of days thus the lake water provides an average of precipitation falling only a few days before, except in the winter when the lakes are effectively closed. Free
APA, Harvard, Vancouver, ISO, and other styles
9

Schumacher, M., R. A. Werner, H. A. J. Meijer, et al. "Oxygen isotopic signature of CO<sub>2</sub> from combustion processes." Atmospheric Chemistry and Physics 11, no. 4 (2011): 1473–90. http://dx.doi.org/10.5194/acp-11-1473-2011.

Full text
Abstract:
Abstract. For a comprehensive understanding of the global carbon cycle precise knowledge of all processes is necessary. Stable isotope (13C and 18O) abundances provide information for the qualification and the quantification of the diverse source and sink processes. This study focuses on the δ18O signature of CO2 from combustion processes, which are widely present both naturally (wild fires), and human induced (fossil fuel combustion, biomass burning) in the carbon cycle. All these combustion processes use atmospheric oxygen, of which the isotopic signature is assumed to be constant with time
APA, Harvard, Vancouver, ISO, and other styles
10

Zahn, A., P. Franz, C. Bechtel, J. U. Grooß, and T. Röckmann. "Modelling the budget of middle atmospheric water vapour isotopes." Atmospheric Chemistry and Physics 6, no. 8 (2006): 2073–90. http://dx.doi.org/10.5194/acp-6-2073-2006.

Full text
Abstract:
Abstract. A one-dimensional chemistry model is applied to study the stable hydrogen (D) and stable oxygen isotope (17O, 18O) composition of water vapour in stratosphere and mesosphere. In the troposphere, this isotope composition is determined by "physical'' fractionation effects, that are phase changes (e.g. during cloud formation), diffusion processes (e.g. during evaporation from the ocean), and mixing of air masses. Due to these processes water vapour entering the stratosphere first shows isotope depletions in D/H relative to ocean water, which are ~5 times of those in 18O/16O, and secondl
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Oxygen isotopes, atmospheric effects"

1

Soens, Bastien. "Petrographic and geochemical characterization of the micrometeorite collection from the Sør Rondane Mountains: Nature and origin of the extraterrestrial flux to Earth." Doctoral thesis, Universite Libre de Bruxelles, 2021. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/331729.

Full text
Abstract:
The Antarctic continent has traditionally been a successful searching ground for meteoritic material due to its cold and dry climate. Meteorites, and their microscopic analogues micrometeorites, were originally sampled from Antarctic ice and snow. Recently, however, a large collection of micrometeorites was discovered in sedimentary traps and moraine deposits from the Transantarctic Mountains, where extraterrestrial dust particles have accumulated for a prolonged time span (ca. 3–4 Ma). Micrometeorites (or ‘cosmic dust’) show unique chemical and isotopic signatures, which originate from a larg
APA, Harvard, Vancouver, ISO, and other styles
2

Missell, Christine Ann. "Thermoregulatory adaptations of Acrocanthosaurus atokensis - evidence from oxygen isotopes." NCSU, 2004. http://www.lib.ncsu.edu/theses/available/etd-12312003-115912/.

Full text
Abstract:
Isotopic analyses of bone phosphate oxygen from a modern alligator, ostrich, and elephant have provided a means for examining diagenesis and thermoregulatory strategy within the dinosaur Acrocanthosaurus atokensis. The Acrocanthosaurus specimen is assumed to retain an original isotopic signature, based on a lack of linear correlation between δ18Ophosphate and structural δ18Ocarbonate, equal standard deviations between δ18Ophosphate values for spongy and compact bone, and a significant difference between δ18Ophosphate and cement δ18Ocarbonate. Interbone and intrabone temperature variation patte
APA, Harvard, Vancouver, ISO, and other styles
3

Warrington, Anita Glasgow. "Stable isotopes of carbon and oxygen in the shells of terrestrial molluscs." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316976.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dejwakh, Navid Rene. "Using 15N, 18O, and 17O to Determine Nitrate Sources and Removal Processes from Groundwater, Tucson, Arizona." Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/193327.

Full text
Abstract:
Nitrate is a common groundwater contaminant. Due to adverse health effects, waters above the Maximum Contaminant Level (MCL) of 10 mg NO3-N/L or 0.71 mmols/L, are banned from domestic consumption by the EPA. Studies have measured elevated nitrate concentrations in arid land soils and groundwater around the world. These elevated concentrations could be detrimental to the environment and to human health. Thus, it is important to consider the different sources and processes affecting nitrate concentrations Here, a novel triple isotope system approach was employed, coupling δ17O with δ18O and δ
APA, Harvard, Vancouver, ISO, and other styles
5

Webb, Mathew Douglas. "Carbon, chloride, and oxygen isotopes as tracers of interbasin groundwater flow at La Selva Biological Station, Costa Rica." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-03262007-111350/.

Full text
Abstract:
Groundwater and surface water samples were taken at 14 locations at a lowland rainforest site (La Selva Biological Station) in Costa Rica for the analysis of DIC, DOC, 14C, 13C, 36Cl, 18O, and other geochemical parameters. The data are consistent with the mixing of two endmember groundwaters. One is a local water having low Cl concentrations (<0.07 mM), low DIC (<3.0 mM), high 14C (>100 pmc), δ13C between -22? and -26?, and highly variable 36Cl/Cl ratios. This chemistry is consistent with locally recharged shallow groundwaters having short residence times in which the DIC originates from plant
APA, Harvard, Vancouver, ISO, and other styles
6

Valdez, Adelia Christina. "Analysis of Atmospheric Effects Due to Atmospheric Oxygen on a Wideband Digital Signal in the 60 Ghz Band." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35234.

Full text
Abstract:
As lower microwave frequency bands become saturated with users, there is a motivation for the research of applications that utilize higher frequencies, especially the 60 GHz band. This band is plagued with high atmospheric absorption due to atmospheric oxygen, but has a lot of bandwidth, which makes it desirable for multi-media applications. Recently, research of wideband digital links within the 60 GHz band gained the interest of the wireless communication industry when the FCC announced that a license is not required for a wideband digital signal in this band. Previous research on 60 GHz s
APA, Harvard, Vancouver, ISO, and other styles
7

Adiatma, Yoseph Datu. "Did early land plants produce a step-change in atmospheric oxygen centered on the Late Ordovician Sandbian Age ~458 Ma?" The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546386257035643.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Mercer, A. P. "The effects of atmospheric humidity and oxygen on the wear of metals by fine abrasives." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356659.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wilson, Jessica Norman. "Stable Isotopes and Trace Elements in Tooth Enamel Bioapatite: Effects of Diagenesis and Pretreatment on Primary Paleoecological Information." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4965.

Full text
Abstract:
The geochemical analysis of bioapatite in vertebrate skeletal tissues is an important tool used to obtain ecological information from fossil animals. An important consideration when conducting stable isotope and trace element analyses is obtaining biogenic information that has been unaffected by diagenetic processes. A two-step pretreatment procedure is commonly used remove diagenetically altered material by removing organic material, via an oxidation reaction with H2O2 or NaOCl, and secondary carbonate, via dissolution in dilute acetic acid, from bioapatite. While much work has been done to
APA, Harvard, Vancouver, ISO, and other styles
10

Howard, Evan M. (Evan Michael). "Ecosystem metabolism in salt marsh tidal creeks and ponds : applying triple oxygen isotopes and other gas tracers to novel environments." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/109021.

Full text
Abstract:
Thesis: Ph. D., Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2017.<br>Cataloged from PDF version of thesis. Page 216 blank.<br>Includes bibliographical references (pages 179-215).<br>Salt marshes are physically, chemically, and biologically dynamic environments found globally at temperate latitudes. Tidal creeks and marshtop ponds may expand at the expense of productive grass-covered marsh platform. It is therefore important to
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Oxygen isotopes, atmospheric effects"

1

Cernusak, Lucas A., and Nerea Ubierna. "Carbon Isotope Effects in Relation to CO2 Assimilation by Tree Canopies." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_9.

Full text
Abstract:
AbstractThe carbon atoms deposited in tree rings originate from the CO2 in the atmosphere to which the tree’s canopy is exposed. Thus, the first control on the stable carbon-isotope composition of tree rings is by δ13C of atmospheric CO2. There has been an inter-annual trend of decreasing δ13C of atmospheric CO2 over the past two centuries as a result of combustion of fossil fuels and land-use change. Atmospheric CO2 is, for the most part, well mixed, but the sub-canopy air space can become depleted in 13C due to inputs from soil and plant respiration when turbulent exchange with the troposphe
APA, Harvard, Vancouver, ISO, and other styles
2

Heller, H., M. Könen, A. Overlack, and K. D. Schuster. "Fractionation Effects of Oxygen Isotopes Within Interstitial Lung Disease." In Advances in Experimental Medicine and Biology. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0333-6_49.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ulrich, Danielle E. M., Steve Voelker, J. Renée Brooks, and Frederick C. Meinzer. "Insect and Pathogen Influences on Tree-Ring Stable Isotopes." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_25.

Full text
Abstract:
AbstractUnderstanding long-term insect and pathogen effects on host tree physiology can help forest managers respond to insect and pathogen outbreaks, and understand when insect and pathogen effects on tree physiology will be exacerbated by climate change. Leaf-level physiological processes modify the carbon (C) and oxygen (O) stable isotopic composition of elements taken up from the environment, and these modifications are recorded in tree-rings (see Chaps. 10.1007/978-3-030-92698-4_9, 10.1007/978-3-030-92698-4_10, 10.1007/978-3-030-92698-4_16 and 10.1007/978-3-030-92698-4_17). Therefore, tre
APA, Harvard, Vancouver, ISO, and other styles
4

Roden, John, Matthias Saurer, and Rolf T. W. Siegwolf. "Probing Tree Physiology Using the Dual-Isotope Approach." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_16.

Full text
Abstract:
AbstractThe environmental and physiological interpretation of stable isotope variation in organic matter is affected by many different and interacting factors. This is especially true when considering isotope variation in tree rings, which are influenced not only by leaf-level photosynthetic gas exchange processes but also by post-photosynthetic fractionation. It has been proposed that measuring multiple isotopes on the same sample may constrain such interpretations if one isotope provides independent information about important fractionation events that cause variation in another isotope. Her
APA, Harvard, Vancouver, ISO, and other styles
5

Roden, John, Matthias Saurer, and Rolf T. W. Siegwolf. "Probing Tree Physiology Using the Dual-Isotope Approach." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_16.

Full text
Abstract:
AbstractThe environmental and physiological interpretation of stable isotope variation in organic matter is affected by many different and interacting factors. This is especially true when considering isotope variation in tree rings, which are influenced not only by leaf-level photosynthetic gas exchange processes but also by post-photosynthetic fractionation. It has been proposed that measuring multiple isotopes on the same sample may constrain such interpretations if one isotope provides independent information about important fractionation events that cause variation in another isotope. Her
APA, Harvard, Vancouver, ISO, and other styles
6

Gagen, Mary, Giovanna Battipaglia, Valerie Daux, et al. "Climate Signals in Stable Isotope Tree-Ring Records." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_19.

Full text
Abstract:
AbstractIn this chapter we introduce the climate signal in stable isotope tree-ring records, with the emphasis on temperate forests. The development of the subdiscipline is recapped followed by an exploration of isotope dendroclimatic records by geography and, broadly, by isotopic species. Whilst there are still questions to be answered around signal strength and age-related effects in different environments and in different species, the proxy is now contributing to palaeoclimatology in a far greater way than in the days of the first hints of ‘isotope tree thermometers’. We include two summary
APA, Harvard, Vancouver, ISO, and other styles
7

Belmecheri, Soumaya, William E. Wright, and Paul Szejner. "Sample Collection and Preparation for Annual and Intra-annual Tree-Ring Isotope Chronologies." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_4.

Full text
Abstract:
AbstractThis chapter provides guidance for conducting studies based on stable isotope measurements in tree rings to infer past and present climate variability and ecophysiology. Balancing theoretical perspectives of stable isotope variations recorded in tree rings, intended research applications (paleoclimate or ecophysiology) and resource limitations, this chapter describes key aspects of field sampling strategies and laboratory sample processing. It presents an overview of factors influencing variations and thus interpretations of carbon and oxygen isotopes, including juvenile/age effects, c
APA, Harvard, Vancouver, ISO, and other styles
8

Belmecheri, Soumaya, William E. Wright, and Paul Szejner. "Sample Collection and Preparation for Annual and Intra-annual Tree-Ring Isotope Chronologies." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_4.

Full text
Abstract:
AbstractThis chapter provides guidance for conducting studies based on stable isotope measurements in tree rings to infer past and present climate variability and ecophysiology. Balancing theoretical perspectives of stable isotope variations recorded in tree rings, intended research applications (paleoclimate or ecophysiology) and resource limitations, this chapter describes key aspects of field sampling strategies and laboratory sample processing. It presents an overview of factors influencing variations and thus interpretations of carbon and oxygen isotopes, including juvenile/age effects, c
APA, Harvard, Vancouver, ISO, and other styles
9

van der Sleen, Peter, Pieter A. Zuidema, and Thijs L. Pons. "Stable Isotopes in Tree Rings of Tropical Forests." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_22.

Full text
Abstract:
AbstractThe study of stable isotopes in tree rings is relatively new, but growing research field in tropical forests. In this chapter, we review 53 studies that measured stable isotopes of C, O and/or N in tree rings of a total of 83 tropical tree species. Tree growth in tropical forests is generally determined by seasonality of precipitation, and not temperature. Consequently, temporal variation in both δ13C and δ18O has often been correlated to precipitation and variability of the El Niño Southern Oscillation (ENSO), which can affect weather systems throughout the tropics and subtropics. Cur
APA, Harvard, Vancouver, ISO, and other styles
10

van der Sleen, Peter, Pieter A. Zuidema, and Thijs L. Pons. "Stable Isotopes in Tree Rings of Tropical Forests." In Stable Isotopes in Tree Rings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92698-4_22.

Full text
Abstract:
AbstractThe study of stable isotopes in tree rings is relatively new, but growing research field in tropical forests. In this chapter, we review 53 studies that measured stable isotopes of C, O and/or N in tree rings of a total of 83 tropical tree species. Tree growth in tropical forests is generally determined by seasonality of precipitation, and not temperature. Consequently, temporal variation in both δ13C and δ18O has often been correlated to precipitation and variability of the El Niño Southern Oscillation (ENSO), which can affect weather systems throughout the tropics and subtropics. Cur
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Oxygen isotopes, atmospheric effects"

1

Kramer, Patrick, Fritz Friedersdorf, and Matthew Merrill. "Segmented Multi Electrode Sensor for Investigation of Environment-assisted Cracking under Dynamic Atmospheric Conditions." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-08946.

Full text
Abstract:
Abstract Environment-assisted cracking (EAC) of aluminum alloys in corrosive atmospheres is a significant maintenance and safety issue for aerospace and naval structures. EAC is influenced by the interaction of stress, environment, and alloy microstructure. Atmospheric environmental conditions and corrosion kinetics are dynamic due to diurnal cycles and changing operating conditions, where temperature, relative humidity, and surface contaminants interact to control thin film electrolyte properties. In the case of EAC and other localized corrosion processes, such as crevice corrosion, separatio
APA, Harvard, Vancouver, ISO, and other styles
2

Kubik, Donald A., Barbara Nygaard, and A. James Henderson. "New Technology for Vapor Corrosion Inhibiting (VCI) Transparent Plastic Packaging Combined with Acid-gas Scavenging (AGS)." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10148.

Full text
Abstract:
Abstract Acid-gas scavenging films (AGS) have existed in two forms, both with fillers that chemically react to reduce diffusion of acid-gases into sealed bags. These provide corrosion protection from acid-gases exterior to the package. They have no effect on corrosion in the presence of humidity and oxygen inside the enclosure. One form, called AGS-Cu in this paper, is opaque and contains copper and carbon particles. The other, called AGS, uses transparent inorganic oxide fillers, primarily to mitigate tarnishing of silver and silverware. A new technology combines AGS and Vapor Corrosion Inhib
APA, Harvard, Vancouver, ISO, and other styles
3

Joos, O., R. Molins, J. Furtado, and S. Wastiaux. "The Effect of Temperature on the Microstructural Stability of an HP40 Alloy." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07426.

Full text
Abstract:
Abstract This study aimed to understand the effects of temperature on the microstructure stability of an HP-40 alloy commonly used in steam methane reformer furnaces. In order to simulate possible solid phase transformations such as secondary carbide precipitation, carbide coarsening and dissolution, tube samples have been aged at 1253K and 1373K for periods of time up to 3,000 hrs, either under atmospheric or under low oxygen partial pressure. The microstructural evolution was verified through the use of optical and electronic microscopes (SEM and TEM). As expected, the main consequences of t
APA, Harvard, Vancouver, ISO, and other styles
4

Kohl, Issaku, Bryan Killingsworth, Edward Young, Nils Kuhlbusch, Max Coleman, and Karen Ziegler. "Sulfate triple-oxygen isotopes from microbially catalyzed pyrite oxidation carry an extreme kinetic isotope effect associated with atmospheric oxygen incorporation." In Goldschmidt 2024. Geochemical Society, 2024. https://doi.org/10.46427/gold2024.24345.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nickel, Hubertus, Willem J. Quadakkers, and Lorenz Singheiser. "Determination of Corrosion Layers and Protective Coatings on Steels and Alloys Used in Simulated Service Environment of Modern Power Plants." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2249.

Full text
Abstract:
The development of modern power generation systems with higher thermal efficiency requires the use of constructional materials of higher strength and improved resistance to the aggressive service atmospheres. In this paper the following examples are discussed: 1) The oxidation behavior of 9% Cr steels in simulated combustion gases: The effects of O2 and H2O content on the oxidation behavior of 9% Cr steels in the temperature range 600–800°C showed that in dry oxygen a protective scale was formed with an oxidation rate controlled by diffusion. In contrast, that in the presence of water vapor, a
APA, Harvard, Vancouver, ISO, and other styles
6

Liu, Xue, Yang Liu, Tao Li, Guohui Li, and Lixiang Jiang. "Prediction Effects of Low Earth Orbit Space Environments on Atomic Oxygen Undercutting." In 3rd AIAA Atmospheric Space Environments Conference. American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-3825.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Conroy, Jessica, David Chillagana, Fernando Echeverria, Julia Cole, Nicole Murray, and Patrick Colin. "Long time series of stable oxygen isotopes in seawater: records of ocean circulation and atmospheric hydrology." In Goldschmidt 2024. Geochemical Society, 2024. https://doi.org/10.46427/gold2024.23529.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Wang, Shouguo. "Oxygen Effects on a He/O2 Plasma Jet at Atmospheric Pressure." In IEEE Conference Record - Abstracts. 2005 IEEE International Conference on Plasma Science. IEEE, 2005. http://dx.doi.org/10.1109/plasma.2005.359072.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Korshunov, A. "EXPERIMENTAL STUDY OF FOAMED EMULSION COMBUSTION: EFFECTS OF OXYGEN, DICHLOROETHANE, AND GLYCEROL CONCENTRATIONS." In 8TH INTERNATIONAL SYMPOSIUM ON NONEQUILIBRIUM PROCESSES, PLASMA, COMBUSTION, AND ATMOSPHERIC PHENOMENA. TORUS PRESS, 2020. http://dx.doi.org/10.30826/nepcap2018-2-10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Boselli, M., V. Colombo, E. Ghedini, et al. "Comparing the effects of different atmospheric pressure non-equilibrium plasma sources on polylactide oxygen permeability." In 2012 IEEE 39th International Conference on Plasma Sciences (ICOPS). IEEE, 2012. http://dx.doi.org/10.1109/plasma.2012.6383893.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!