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Some properties of liquid helium
Published 1964“…<p>The theoretical picture of liquid helium 3 which is currently accepted is due to Landau (1957 a). …”
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The shortage of helium supply in industry
Published 2013“…Shortage of Helium supply has been occurring globally. Helium is widely used in various sectors which include defense related, technology and science related.The shortage of helium has affected many industries, especially the healthcare industry.Helium is crucial the healthcare industry and are mainly used to reach cryogenic temperatures of -451 degrees for superconducting magnets in MRI, enabling the capturing of high resolution images of human tissue and organs.This review aim to discuss the nature of helium shortage, factors influencing the shortages, the importance and implication of helium shortage and the alternative method that could be considered to address these problems.…”
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Helium: Sources, Applications, Supply, and Demand
Published 2023-12-01“…Helium is an inert gas with no color or odor [...]…”
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Sound resonances in supercritical and superfluid helium
Published 2021-07-01Subjects: Get full text
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Coherence control in helium-ion ensembles
Published 2021-06-01“…In this work, we use ab initio simulations of pump-probe ionization of helium above the 2s/2p threshold to demonstrate how this loss of coherence can be controlled. …”
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Antideuteron Identification in Space with Helium Calorimeter
Published 2024-01-01Subjects: Get full text
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Hydrogen, helium and thermo-acoustic refrigerators
Published 2023-09-01“…Abstract In this work the design and analysis of 1 kW thermo-acoustic refrigerators with hydrogen and helium for the temperature difference of 38 K is discussed. …”
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Hydrogen and helium trapping in hcp beryllium
Published 2023-04-01“…In the present paper we use analytical spectroscopy in TEM to show that hydrogen adsorbs directly at the (0001) surfaces of hexagonal helium bubbles within neutron irradiated beryllium. …”
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Review of Membranes for Helium Separation and Purification
Published 2017-02-01Subjects: “…helium…”
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Prospects for the global helium industry development
Published 2022-06-01Subjects: “…Helium industry…”
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Observation of the antimatter helium-4 nucleus
Published 2019“…Thus, a high-energy accelerator of heavy nuclei provides an efficient means of producing and studying antimatter. The antimatter helium-4 nucleus (), also known as the anti-(), consists of two antiprotons and two antineutrons (baryon number B = '4). …”
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THE VIBRATIONAL-RELAXATION OF OZONE BY HELIUM-ATOMS
Published 1982“…An ab initio, quantum-mechanical method is used to compute rate coefficients for the vibrational relaxation of ozone in three-dimensional collisions with helium atoms. Good agreement is obtained between the calculated and experimental rate coefficients for the process He + O3(010) - He + O3(000). © 1982.…”
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New constraints on the formation of the helium lines
Published 2003“…We analyse observations of the helium lines obtained with CDS onboard SOHO. The He I 584.3 Angstrom/O III intensity ratio shows a lower limit and an upper limit that decrease with increasing 0 in intensity. …”
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The formation and properties of helium-degenerate dwarfs
Published 2001“…We have systematically analyzed the evolution of a wide variety of binary systems that ultimately lead to the formation of detached or semi-detached helium degenerate dwarfs (HeDD's). Specifically, we have explored some of the more important dimensions of parameter space including various: (i) metallicities; (ii) mass-transfer rates; and, (iii) states of evolution of the donor at the onset of mass transfer (equivalent to choosing different initial orbital separations). …”
Conference item