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
    Magnetic susceptibility of bcc sodium (abstract) : 37th Annual conference on magnetism and magnetic materials (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 5344-5344 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The random phase approximation has been employed to compute the spin and orbital susceptibilities of bcc sodium. The calculations were based upon a self-consistent local exchange and correlation potential and an orthogonalized plane wave basis set. Assuming no overlap between core orbitals, expressions for the necessary matrix elements were formulated and computed accurately. Convergence of various sums was investigated and the results for bcc sodium were compared with the corresponding electron gas values. While the spin susceptibility agreed well with electron gas estimates, it was 25% lower than measured values. The orbital susceptibility was found to be an order of magnitude smaller than electron gas values because of matrix element effects. Including core contributions, the total susceptibility was found to be 0.477±0.022×10–6 emu/cm3 compared with the experimental value of 0.585±0.015. Recent correlation corrections to the band structure of sodium employing the GW method have been used to account for the discrepancy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.353722
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Statistical Mechanics of Transport and Nonequilibrium Processes (1954)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physical Chemistry 5 (1954), S. 449-476 
    Details
    ISSN: 0066-426X
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pc.05.100154.002313
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Thermochemistry and Thermodynamics of Substances (1956)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physical Chemistry 7 (1956), S. 287-310 
    Details
    ISSN: 0066-426X
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pc.07.100156.001443
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Computerised analysis of ST segment changes in ambulatory electrocardiograms (1987)
    Springer
    Medical & biological engineering & computing 25 (1987), S. 513-519 
    Details
    ISSN: 1741-0444
    Keywords: Ambulatory monitoring ; Computerised detection ; ST segment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The TELAVIV system for computerised arrhythmia detection and identification in ambulatory ECGs has been extended to include a reliable and rapid computerised method for ST-segment analysis. It now incorporates self-learning analysis and classification of ST-segment changes. Some advantages for ST-segment analysis present in this algorithm are: (a) it analyses three channels simultaneously instead of one or two in other systems; (b) it includes a larger number of parameters describing the ST-segment changes; (c) the measurements are detected from a noise-free template, averaged over 20 beats; (d) isoelectric and J-points are detected by a self-learning process; (e) a scoring system has been added; and (f) it now has the capability to detect and classify arrhythmias and ST-segment changes simultaneously. The system was tested on three types of recordings: 30 1 h recordings in which ST-changes were observed in the quick summary plot produced by the TELAVIV system; 12 recordings taken during submaximal effort; and 13 recordings made during conventional ergometry. The results indicated a high level of sensitivity and specificity of the program.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441743
    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...