Library

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
    Springer
    Pure and applied geophysics 125 (1987), S. 845-852 
    ISSN: 1420-9136
    Keywords: Solar quiet daily variation ; magnetospheric currents ; focal latitude
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The average latitude of theSq(X) focus along the longitude 75°E has been estimated using the Tsyganenko model (Tsyganenko, 1981) of the external magnetic field for storm time conditions of the magnetosphere. It is observed that the shift of the focal latitudes, due to magnetospheric currents, is only about 1 to 2° even during strong storms. It is also shown that the shift is asymmetric about the equator and longitude dependent. The day to day changes in observed focal position are much larger and the magnetospheric currents cannot, therefore, be regarded as a dominant mechanism of focal movement.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 8210-8216 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Sputter-deposited, heteroepitaxial (100)CdTe layers prepared at growth temperatures of 300–325 °C are found to be p-type with high dark resistivities on the order of 2×105 Ω cm. The epilayers are highly photoconducting and exhibit photoconductivity to dark conductivity ratios as high as 1×106 at around 200 K. The photoconductivity is observed to exhibit a sublinear dependence on illumination intensity and a thermally activated behavior. The model developed by Simmons and Taylor [J. G. Simmons and G. W. Taylor, J. Phys. C: Solid State Phys. 7, 3051 (1974); G. W. Taylor and J. G. Simmons, J. Phys. C: Solid State Phys. 7, 3067 (1974)] to explain photoconductivity in amorphous semiconductors is shown to be applicable to these epitaxial layers. Hole traps at 0.40 and 0.23 eV above the valence band have been determined from the temperature dependence of the photoconductivity. Acceptor levels at 0.62 and 0.07 eV above the valence band, determined from the temperature dependence of the dark conductivity, are discussed in relation with photoluminescence bands at 0.81 and 1.00 eV reported earlier [S. R. Das, J. G. Cook, N. L. Rowell, and M. S. Aouadi, J. Appl. Phys. 68, 5796 (1990)] in these epilayers.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 0277-5387
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 254 (1997), S. 246-250 
    ISSN: 1434-4726
    Keywords: Head and neck neoplasms ; Synovial sarcoma ; Multimodal therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Primary synovial sarcoma of the head and neck region is a rare tumor. This report describes seven cases of primary synovial sarcomas, of which two were in the parapharyngeal region, two in the supraclavicular region, and one each in the hypopharynx, sternocleidomastoid and submandibular regions. Clinical presentations, radiological findings, histopathology and management are reviewed. All patients received multimodal therapy using aggressive surgery, radiotherapy and chemotherapy. Five of the patients are alive and disease free after 24–108 months of follow-up. Achievement of locoregional control appears to be the hallmark of successful therapy.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Astrophysics and space science 74 (1981), S. 287-301 
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The adiabatic motion of charged particles in the magnetosphere has been investigated using Mead-Fairfield magnetospheric field model (Mead and Fairfield, 1975). Since the motion of charged particles in a dipolar field geometry is well understood, we bring out in this paper some important features in characteristic motion due to non-dipolar distortions in the field geometry. We look at the tilt averaged picture of the field configuration and estimate theoretically the parameters like bounce period, longitudinal invariant and the bounce averaged drift velocities of the charged particle in the Mead-Fairfield field geometry. These parameters are evaluated as a function of pitch angle and azimuthal position in the region of ring current (5 to 7 Earth radii from the centre of the Earth) for four ranges of magnetic activity. At different longitudes the non-dipolar contribution as a percentage of dipole value in bounce period and longitudinal invariant show maximum variation for particles close to 90° pitch angles. For any low pitch angle, these effects maximize at the midnight meridian. The radial component of the bounce averaged drift velocity is found to be greatest at the dawn-dusk meridians and the contribution vanishes at the day and midnight meridians for all pitch angles. In the absence of tilt-dependent terms in the model, the latitudinal component of the drift velocity vanishes. On the other hand, the relative non-dipolar contribution to bounce averaged azimuthal drift velocity is very high as compared to similar contribution in other characteristic parameters of particle motion. It is also shown that non-dipolar contribution in bounce period, longitudinal invariant and bounce averaged drift velocities increases in magnitude with increase in distance and magnetic activity.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 22 (1972), S. 177-180 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The radial displacement of an annular piezoelectric ceramic disc with concentric electrodes has been found with the help of transform calculus when the external periphery is subjected to a time-dependent force.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. A seven-quasiparticle isomer with $K^{\pi} = (49 /2^ + )$ and T 1/2 = 53 ( + 3 -7) ns has been identified in 179Ta. By comparing its excitation energy with results from multi-quasiparticle calculations that include the effects of blocking and residual nucleon-nucleon interactions, the isomer is assigned the $\pi^{3}$ (5/2 + [402], 7/2 + [404], $9/2^{-}[514]) \otimes \nu^{4}$ (5/2-[512], 7/2-[514], 7/2-[503], 9/2 + [624]) configuration. The decay of this isomer is found to be unusually fast, a feature that is attributed to a mixing with a specific collective level. The interaction strength is found to be orders of magnitude lower than that observed between interacting collective levels.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 25 (1975), S. 392-398 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract To determine the distribution of stress, strain, temperature, electric and magnetic fields in an infinite solid when it is subjected to a time-dependent heat source, is the aim of the present paper. The solutions have been achieved by means of Fourier and Laplace transforms.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A field survey of road-side rhesus monkey of northern India was conducted during 1964–65 for the study of group composition and population density. In 1651 km distance covered during this survey, total of 83 groups of rhesus monkey were counted. Adult females were predominant over other members in the group and were twice the number of adult males in a group. Infants were more than double the numbers of juveniles and juveniles formed the smallest percentage in any group and showed a tendency of decline in their population. Percentages of group size varied from 2.50 to 28.09. Sex-ratios, proportions of infants and juveniles to adults, proportions of juveniles to infants and the population density in different zones and sectors have been discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Brookfield, Conn. : Wiley-Blackwell
    Polymer Composites 15 (1994), S. 217-222 
    ISSN: 0272-8397
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Based on an adhesive and fabric screening program, a rubber-modified resole adhesive and a flexible grade plain weave glass fabric were found appropriate for the fabrication of a glass-reinforced plastics honeycomb core material. Sandwich structures of different densities were fabricated. A linear regression analysis was performed to correlate the mechanical properties (S) with the density (p) for a wide range of sandwich structures based on honeycomb and cellular plastic core materials. An analytical model of the form S = Kρn was derived, with two empirical constants K and n. The density exponent n was between 1 ≤ n ≤ 2 in all cases. An equation was also derived to relate density with thermal conductivity. The dynamic mechanical analysis (DMA) results revealed that the glass transition temperature of the resin matrix associated with the sandwich structure was higher than that of the corresponding facing laminate or near resin casting.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...