hydrogen isotopes
An experimental exploration of the incorporation of hydrogen isotopes from dietary sources into avian tissues
... of hydrogen stable isotopes (D) is a potentially powerful tool for studying animal ...stable isotopes used in ecological research, however, we are less familiar with the physiological processes that ...
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Study of Pd Membrane Electrode in Solid Electrolyte Hydrogen (Isotopes) Sensor for Application to Liquid Blankets
... Compact membrane electrodes made of Pd for a hy- drogen sensor were developed for application to hydrogen (isotopes) sensors in corrosive environments such as liquid blankets in fusion reactors. The ...
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Applications of hydrogen isotopes in the life sciences
... Abstract: Hydrogen isotopes are unique tools for identifying and understanding biological or chemical ...processes. Hydrogen isotope labeling allows for a traceless and direct incorporation of an ...
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Surface Segregation of Ti in a V 4Cr 4Ti Alloy and Its Influence on the Surface Reaction Rates of Hydrogen Isotopes
... to Li, however, poses problems such as uncertainty in the evaluation of the tritium breeding ratio and an additional load on the tritium recovery system. The dissolution of tritium and deuterium from plasma into the ...
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Retention of Hydrogen Isotopes in Neutron Irradiated Tungsten
... of hydrogen in W is low in comparison with other metals, 1) and hence retention of hydrogen isotopes in W is considered to be dominated by trapping effects by defects such as vacancies and ...on ...
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Lattice Dynamical Investigation on the Diffusion of Hydrogen Isotopes in Mg2Ni
... of hydrogen and its isotopes. To store hydrogen is to store ...of hydrogen isotopes in Mg 2 Ni except the ab-initio calculation and ...
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Migratory movements of the true armyworm (Mythimna unipuncta) (Haworth): An investigation using naturally occurring stable hydrogen isotopes
... stable hydrogen isotopes. Stable carbon and nitrogen isotopes can also be of use to provide more information about the biology of an ...carbon isotopes (C 12 /C 13 ) provide insight into ...
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Lattice Dynamical Investigation on the Diffusion of Hydrogen Isotopes in HfTi2
... of hydrogen isotope and its surrounding host crystal atoms are computed using scattering matrix formalism and green function ...of hydrogen isotopes are estimated using reaction coordinate approach ...
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Isotopic Proxies for Microbial and Environmental Change: Insights from Hydrogen Isotopes and the Ediacaran Khufai Formation
... Microbes have profoundly influenced the Earth’s environments through time. Records of these interactions come primarily from the development and implementation of proxies that relate known modern processes to chemical ...
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An analytical system for the measurement of stable hydrogen isotopes in ambient volatile organic compounds
... of hydrogen in order to meet the re- quired detection limits, the measured δ 2 H values range from − 136 to − 105 ‰ for n-pentane, from − 86 to − 63 ‰ for toluene, from − 39 to − 15 ‰ for ethylbenzene, from − 99 ...
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Using stable-hydrogen isotopes to reveal immigration in an Arctic-breeding songbird population
... stable isotopes has limitations, the use of stable-hydrogen isotopic markers has the potential to contribute valuable information towards understanding immigration rates in bird ...study, hydrogen ...
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Salinity changes in the Agulhas leakage area recorded by stable hydrogen isotopes of C 37 alkenones during Termination I and II
... the hydrogen isotope composi- tion of alkenones is mainly dependent on salinity, the hydro- gen isotope composition of the growth media and, to a lesser extent, growth rate (Englebrecht and Sachs, 2005; Schouten ...
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Carbon and Hydrogen Isotopes as Tracers of Methane Dynamic in Wetlands
... the type species and functional plant groups that affect these processes differently [52]. In vegetated wetlands, plant-mediated transport involves several steps that may further fractionate isotopes, i.e. ...
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Coupled measurements of δ18O and δD of hydration water and salinity of fluid inclusions in gypsum from the Messinian Yesares Member, Sorbas Basin (SE Spain)
... and hydrogen isotopes were measured si- multaneously by cavity ringdown laser spectroscopy (CRDS) using a Picarro L1102-i water isotope analyzer and A0211 high-precision vaporizer at the University of ...
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Clarification of Tritium Behavior in Pb Li Blanket System
... Properties related with tritium inventory and recovery in the PbLi liquid blanket were summarized here, when the eutectic alloy was applied to a tritium breeder in fusion reactor. The solubility and diffusivity of ...
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Improving the Use of Migration Counts for Wildlife Population Monitoring
... Migration counts are assumed to be proportional to the size of the monitored population. However, the specific breeding origin of migrants detected at a site is currently known only broadly. For several songbird species ...
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DOSAGE DETERMINATION IN THE USE OF RADIOACTIVE ISOTOPES
... Two extensive tables are presented, for beta and gamma rays respectively, giving half life, radiation average energy, fraction disintegrating per day, and specific dosage data, including[r] ...
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Influence of Last Glacial Maximum boundary conditions on the global water isotope distribution in an atmospheric general circulation model
... The stable isotope ratios of water in the hydrological cy- cle of IsoCAM are transported through the atmosphere and the ground by the same processes (advection, moist con- vection, evapotranspiration, etc.) used to ...
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The Separation of Gaseous Isotopes by Diffusion
... with an apparatus containing fourteen mercury dif'fusion pumps, show the separation to be the same as for rr.ixtures of carbon dioxide and argon, for which the mass ratio, 44:40, is the [r] ...
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The Global Network of Isotopes in Rivers (GNIR): integration of water isotopes in watershed observation and riverine research
... and human impacts within a watershed. In particular, differ- ences in the timing and mixing of winter and summer pre- cipitation runoff are observed in the variation of the river isotopic values over time. Moreover, dry ...
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