Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    A quantum-dot refrigerator (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 1815-1817 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A cryogenic refrigeration scheme is presented which utilizes the discrete energy levels of quantum dots to customize the electronic Fermi–Dirac distribution, cooling a small but macroscopic reservoir to far below the ambient temperature. Several physical limitations of this scheme are discussed within the context of a model device constructed from a two-dimensional electron gas. These are explored in a simple example where, at an ambient operating temperature of 150 mK, this quantum-dot refrigerator can achieve a cooling power of 1 μW/cm2, a base temperature of 10 mK, and a cooling efficiency of 35%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.110672
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Spectroscopic studies of an ambient-pressure process for the selective hydrogenation of polybutadienes (1992)
    s.l. : American Chemical Society
    Macromolecules 25 (1992), S. 525-529 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00028a005
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    facet.materialart.
    Unknown
    Robert Gaguin and the English Poets, 1489-90 (1937)
    Cambridge : Periodicals Archive Online (PAO)
    The Modern language review. 32 (1937) 430 
    Details
    ISSN: 0026-7937
    Topics: Linguistics and Literary Studies
    Notes: MISCELLANEOUS NOTES
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0094-1937-032-00-000027
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Phosphorescence of Photographic Plates (1904)
    [s.l.] : Nature Publishing Group
    Nature 69 (1904), S. 272-272 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SOME time ago when developing an X-ray photograph I observed the effect noticed by your correspondent in your last issue. Very little of the silver salt had been affected, and the plate, after development, when put into alum solution lit up as described. I have often watched for the same effect ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/069272c0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    facet.materialart.
    Unknown
    JOHN SKELTON: A GENEALOGICAL STUDY (1935)
    Oxford : Periodicals Archive Online (PAO)
    Review of English studies. 11 (1935) 406 
    Details
    ISSN: 0034-6551
    Topics: English, American Studies
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0091-1935-011-00-000002
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Types of Iridescent Clouds (1932)
    [s.l.] : Nature Publishing Group
    Nature 129 (1932), S. 798-798 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the winter of 1930–31, I was measuring the height of the aurora in northern Ontario. On one occasion there had been a well-developed single arc which had remained unusually steady throughout the evening, and I was surprised to see at dawn next morning a light band of cloud stretched in a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/129798a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Respiratory responses to changes in air density (1936)
    Springer
    European journal of applied physiology 9 (1936), S. 341-344 
    Details
    ISSN: 1439-6327
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The use of a 4 to 1 mixture of helium and oxygen in maximal work does not increase the capacity for transporting oxygen nor greatly modify the heart rate. It does favor the elimination of carbon dioxide. It is associated with the same increase in lactic acid but at the same time it favors the elimination of carbon dioxide; accordingly the change in pH is smaller.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009944
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    A study of leukocytosis in exercise (1932)
    Springer
    European journal of applied physiology 6 (1932), S. 73-83 
    Details
    ISSN: 1439-6327
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Hard muscular work is accompanied by a leucocytosis in normal individuals and trained athletes, the leucocytosis in football players often showing an increase of between 200% and 300%. The magnitude of leucocytosis is related to both the duration and the intensity of work. Excitement alone will not cause a leucocytosis. Intense exertion of short duration produces a lymphocytosis which is followed by a polynuclear stage if the work is continued for a long enough time. The average recovery curve exhibits no appreciable drop in leucocyte count during the two hours following a football game unless the player lies down immediately after leaving the field. The absolute lymphocyte count falls rapidly for an hour or more after the player leaves the game. The rapidity of the leucocyte changes, the evidence against leucocytolysis and the absence of an appreciable increase in theSchilling-Torgau “band-form” cells all point toward a storage phenomenon. The bone marrow, spleen, liver, lungs, and organs of internal secretion must be considered as possible reservoirs, although no definite statement can yet be made as to the relative importance of each. The fact that lactic acid, blood sugar, blood pressure, body temperature, and capillary dilation can be ruled out as separate variables directly related to leucocytosis in exercise points toward a stimulus perhaps more complicated than has yet been studied. Any explanation of leucocytosis in exercise involving only a simple physical mechanism cannot at present be considered adequate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009854
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Analysis of recovery from anaerobic work (1936)
    Springer
    European journal of applied physiology 9 (1936), S. 299-307 
    Details
    ISSN: 1439-6327
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Recovery processes have been studied in severe work of uniform intensity continuing from a minimum of 5 seconds to a maximum of 106 seconds. The work was largely anaerobic, requiring the accumulation of an oxygen debt, the magnitude of which was approximately a linear function of time. The rate of removal of lactic acid is a logarithmic function of time; the rate varies somewhat from time to time and from one person to another. In the type of activity studied the lactic acid accumulated is proportional to the duration of work. The total oxygen debt as well as the lactacid debt being proportional to duration of work, it follows that the so-called alactacid debt is also proportional to the duration of work. In other words, the lactacid debt and the alactacid debt in such activity are contracted concurrently. The oxygen intake in recovery may be analyzed into a rapid process nearly complete in 5 minutes which pays the alactacid debt, a process about 1/20th as rapid which pays the lactacid debt, and finally an increase in resting metabolism which decreases in a linear fashion until the pre-exercise level is reached. The excess R. Q for the entire process of work and recovery probably lies within the range 0,9 to 1,0.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02011084
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Renal function in exercise (1937)
    Springer
    European journal of applied physiology 9 (1937), S. 610-618 
    Details
    ISSN: 1439-6327
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009875
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...