Search Results for "helium"

Helium

Helium

  • Author: Heather Hasan
  • Publisher: The Rosen Publishing Group, Inc
  • ISBN: 9781404207035
  • Category: Juvenile Nonfiction
  • Page: 48
  • View: 4472
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Describes the physical characteristics and properties of the element Helium.

Helium Cryogenics

Helium Cryogenics

  • Author: Steven W. Van Sciver
  • Publisher: Springer Science & Business Media
  • ISBN: 9780306423352
  • Category: Science
  • Page: 429
  • View: 6605
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At least 10 years have elapsed since a comprehensive monograph concer ned with the broad subject of cryogenics has been published. During this time a considerable quantity of research and development has been carried out in the field of cryogenics. Furthermore, there has been a certain degree of redirection of effort within the field, mostly driven by the variety of new applications, ranging from superconductive magnet systems to micro electronics. Greater emphasis is now being placed on low-temperature cryogenics, particularly that of liquid helium. Until now cryogenic books have provided a broad survey of materials and fluid properties over the entire cryogenic regime, T ::5 150 K. This approach does not allow sufficient detail in any particular area to bring the reader to the current level of understanding in the subject. In addition, the behavior of helium has been lumped with that of other cryogenic fluids, although the properties of helium are quite unique. As a result, a clear relationship has not been established between the fundamental understanding of helium fluids and their potential applications. The present book has been written to fill this void. The approach is to survey the field of cryogenics, specifically as it pertains to helium fluids. This approach is more specialized than that contained in previous cryogenics books. Furthermore, the level of treatment is more advanced and a certain knowledge of fundamental engineering and physics principles has been assumed.

Liquid Helium

Liquid Helium

  • Author: Giorgio Careri
  • Publisher: CUP Archive
  • ISBN: N.A
  • Category: Liquid helium
  • Page: 442
  • View: 1720
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Selling the Nation's Helium Reserve

Selling the Nation's Helium Reserve

  • Author: National Research Council,Division on Engineering and Physical Sciences,National Materials Advisory Board,Board on Physics and Astronomy,Committee on Understanding the Impact of Selling the Helium Reserve
  • Publisher: National Academies Press
  • ISBN: 9780309157537
  • Category: Political Science
  • Page: 156
  • View: 2942
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Helium has long been the subject of public policy deliberation and management, largely because of its many strategic uses and its unusual source-it is a derived product of natural gas and its market has several anomalous characteristics. Shortly after sources of helium were discovered at the beginning of the last century, the U.S. government recognized helium's potential importance to the nation's interests and placed its production and availability under strict governmental control. In the 1960s, helium's strategic value in cold war efforts was reflected in policies that resulted in the accumulation of a large reserve of helium owned by the federal government. The latest manifestation of public policy is expressed in the Helium Privatization Act of 1996 (1996 12 Act), which directs that substantially all of the helium accumulated as a result of those earlier policies be sold off by 2015 at prices sufficient to repay the federal government for its outlays associated with the helium program. The present volume assesses whether the interests of the United States have been well served by the 1996 Act and, in particular, whether selling off the helium reserve has had any adverse effect on U.S. scientific, technical, biomedical, and national security users of helium.

Helium-bearing Natural Gas

Helium-bearing Natural Gas

  • Author: Gaillard Sherburne Rogers
  • Publisher: N.A
  • ISBN: N.A
  • Category: Natural gas
  • Page: 113
  • View: 1445
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Hydrogen and Helium Recycling at Plasma Facing Materials

Hydrogen and Helium Recycling at Plasma Facing Materials

  • Author: Ahmed Hassanein
  • Publisher: Springer Science & Business Media
  • ISBN: 9401004447
  • Category: Technology & Engineering
  • Page: 235
  • View: 8547
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A compendium representing the current state of the art in the modelling, simulation and physics of the interaction of hydrogen and helium with plasma facing materials in fusion reactors. This is the topic that will determine the success of the production of energy by future Tokamak reactors and it is here discussed by the world's experts. Topics covered are recycling of hydrogen isotopes; wall fuelling and wall pumping; active control of hydrogen recycling; hydrogen and helium behaviour in solids and liquid metals; and databases for recycling.

Helium

Helium

Hearing Before the Committee on Energy and Natural Resources, United States Senate, One Hundred Thirteenth Congress, First Session, to Consider S. 783, the Helium Stewardship Act of 2013, May 7, 2013

  • Author: United States. Congress. Senate. Committee on Energy and Natural Resources
  • Publisher: N.A
  • ISBN: N.A
  • Category: Electronic books
  • Page: 69
  • View: 5799
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Helium

Helium

Bibliography of Technical and Scientific Literature, 1963, Including Papers on Alpha-particles

  • Author: Philip Cochran Tully,Billy Joe King,Emily Dowdy
  • Publisher: N.A
  • ISBN: N.A
  • Category: Alpha rays
  • Page: 831
  • View: 1684
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Quantized Vortices in Helium II

Quantized Vortices in Helium II

  • Author: Russell J. Donnelly
  • Publisher: Cambridge University Press
  • ISBN: 9780521324007
  • Category: Mathematics
  • Page: 346
  • View: 405
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Vortex waves have become a major preoccupation of workers in superfluidity. This book discusses the properties of quantized vortex lines in superfluid helium II in the light of research on vortices in modern fluid mechanics. The author begins with a review of classical fluid dynamics relevant to the main topics of the book. This is followed by a presentation of basic material on helium II and quantized vortices. The following chapters deal with various different aspects of the subject including vortex dynamics and mutual friction, the structure of quantized vortices, vortex arrays, and vortex waves. The book concludes with an introduction to two currently active topics, namely superfluid turbulence and the nucleation of quantized vortices.

Helium

Helium

Bibliography of Technical and Scientific Literature from Its Discovery (1868) to January 1, 1947

  • Author: Carl Claude Anderson,Daniel Harrington,Henry P. Wheeler,Joseph L. Wiley,Thomas Fraser,H. C. Anderson,H. H. Hinson,Louise B. Swenarton,W. L. Crentz,A. L. Bailey
  • Publisher: N.A
  • ISBN: N.A
  • Category: Coal
  • Page: 76
  • View: 4074
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