Results 21 to 30 of about 32,828 (294)

Changes in Structure and Reactivity of Ng2 Encapsulated in Fullerenes: A Density Functional Theory Study

open access: yesFrontiers in Chemistry, 2020
Noble gas can be no noble in certain situations from the perspective of structure, bonding, and reactivity. These situations could be extreme experimental conditions or others.
Meng Li   +6 more
doaj   +1 more source

Solubility models of CH4, CO2, and noble gases and their geological applications

open access: yesJournal of Natural Gas Geoscience, 2023
Solubility models for CH4, CO2, and noble gases are widely used in Earth Sciences, playing pivotal roles in the study of homogenization pressure of inclusions, paleoclimate variation, gas migration and accumulation, formation of helium-rich gas plays ...
Xiangrui Chen   +3 more
doaj   +1 more source

New Experimental Tools to Use Noble Gases as Artificial Tracers for Groundwater Flow

open access: yesFrontiers in Water, 2022
Labeling groundwater by injecting an artificial tracer is a standard and widely used method to study groundwater flow systems. Noble gases dissolved in groundwater are potentially ideal artificial tracers, as they are not subject to biogeochemical ...
Matthias S. Brennwald   +8 more
doaj   +1 more source

Pathway to cryogen free production of hyperpolarized Krypton-83 and Xenon-129. [PDF]

open access: yesPLoS ONE, 2012
Hyperpolarized (hp) (129)Xe and hp (83)Kr for magnetic resonance imaging (MRI) are typically obtained through spin-exchange optical pumping (SEOP) in gas mixtures with dilute concentrations of the respective noble gas.
Joseph S Six   +4 more
doaj   +1 more source

Computation-informed optimization of Ni(PyC)₂ functionalization for noble gas separations

open access: yes, 2021
Metal-organic frameworks (MOFs) are promising nanoporous materials for the adsorptive capture and separation of noble gases at room temperature. Among the numerous MOFs synthesized and tested for noble gas separations, Ni(PyC)₂ (PyC = pyridine-4 ...
Maxwell W., Terban   +9 more
core   +1 more source

A new Time-Of-Flight Mass Spectrometer (TOF-MS) for noble gas analysis [PDF]

open access: yes, 2015
Noble gas analysis in early solar system materials, which can provide valuable information about early solar system processes and timescales, are very challenging because of extremely low noble gas concentrations (ppt).
Ramisetty, Ramakrishna
core   +1 more source

A new large‐volume equilibration method for high‐precision measurements of dissolved noble gas stable isotopes

open access: yes, 2023
Rationale Noble gases are widely used as physically based climate proxies, notably in dissolved water samples as tracers of past recharge temperature in groundwater and air–sea gas exchange processes in seawater. Recent advances in measuring large-volume
McIntosh, Jennifer   +11 more
core   +1 more source

The Effect of Past Saturation Changes on Noble Gas Reconstructions of Mean Ocean Temperature

open access: yesGeophysical Research Letters, 2023
The ocean's immense ability to store and release heat on centennial to millennial time scales modulates the impacts of climate perturbations. To gain a better understanding of past variations in mean ocean temperature (MOT), a noble gas‐based proxy ...
Frerk Pöppelmeier   +6 more
doaj   +1 more source

Noble gas cluster ions

open access: yesEPJ Web of Conferences, 2018
In this work, a reaction mechanism of formation of noble gas (Ng) cluster ions has been theoretically investigated in detail. The kinetic studies of formation of Xe+Xe cluster in Xe, Ar+Ar cluster ions in Ar, and Ne+Ne cluster ions in Ne have been made ...
Kaya Yunus, Kalkan Yalçin, Veenhof Rob
doaj   +1 more source

Geochemical Characteristics and Gas Source Contributions of Noble Gases of the Sulige Large Tight Gas Field of Upper Paleozoic in Ordos Basin, China

open access: yesFrontiers in Earth Science, 2022
Tight gas is the fastest developing unconventional natural gas resource, becoming the principal part for gas reserves and production growth in China. The Sulige gas field is the largest gas field and also the typical low porosity and low permeability ...
Wang Xiaobo   +18 more
doaj   +1 more source

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