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
Filter
  • Articles: DFG German National Licenses  (13)
  • 2005-2009  (4)
  • 1985-1989  (9)
Source
  • Articles: DFG German National Licenses  (13)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Temperature dependence of the thermal expansion of semiconductors CdIn2S4 and CdInGaS4 (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 62 (1987), S. 732-734 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The thermal expansion of the compound semiconductors CdIn2S4 and CdInGaS4 has been investigated on single crystals between 120 and 570 K. At high temperatures the anharmonic effects in lattice vibrations of the (parallel)c-axis direction in CdInGaS4 is similar to that in the ⊥c-axis direction, and that in CdIn2S4 is similar to that in CdInGaS4 in spite of the diverse crystal structures. The characteristic temperature (corresponding to Debye temperatures) for CdIn2S4 is 175±10 K, and for CdInGaS4 it is 200±10 K ((parallel)c axis) and 161±10 K (⊥c axis), respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.339755
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Hydrostatic pressure dependence of the exponential optical absorption in CdInGaS4 (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 434-436 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The optical-absorption spectra in the semiconductor CdInGaS4 have been measured precisely at various hydrostatic pressures up to 20 kbar, and analyzed in the region below the fundamental absorption edges. It can be seen that the absorption coefficients plotted semilogarithmically vary linearly with photon energy below the fundamental absorption edges at each hydrostatic pressure. The steepness of the absorption edge is proportional to the inverse of hydrostatic pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338844
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    X-ray diffraction under ultrahigh pressure generated with sintered diamond anvils (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 2201-2204 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: High pressures generated with sintered diamond as the second stage anvils in the "6-2 type'' double-stage apparatus have been calibrated by x-ray diffraction with synchrotron radiation. Sintered diamond has permitted a fair amount of x-ray transparency although the chemical analysis shows the existence of 14-wt. % Co binder. Anvils with a top face of 0.7 mm diam performed the generation of 60 GPa, which was confirmed on the lattice parameters of B1 and B2 phases of NaCl. No appreciable plastic deformation of the used anvils has certified the higher pressure generation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337178
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Hydrostatic pressure dependence of the exponential optical absorption in Bi12SiO20 (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 62 (1987), S. 2012-2015 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The optical-absorption spectra in Bi12SiO20 have been measured precisely at various hydrostatic pressure up to 40 kbar, and analyzed in the region below the fundamental absorption edges. It can be seen that the optical-absorption coefficients plotted semilogarithmically vary linearly with photon energy below the fundamental absorption edges at each hydrostatic pressure. The steepness of the absorption edge decreases with increasing pressure up to 10 kbar and then it shows constant value. The broad shoulders below 3.1-eV photon energy are shown, and the optical-absorption coefficients in those regions increase with increasing pressure up to 10 kbar.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.339543
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Hydrostatic pressure dependence of the optical absorption edge in Bi12SiO20 (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 2065-2066 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The optical absorption coefficients in Bi12SiO20 have been measured precisely at various hydrostatic pressures up to 40 kbar at room temperature. The interband gap for the indirect allowed transition was found to have a pressure coefficient (∂Eg/∂P)T of −1.20×10−6 eV/bar. Using the result of the pressure coefficient, it was indicated that the electron-phonon interaction was dominant in the temperature dependence of the indirect energy gap in Bi12SiO20.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338006
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Expanding Roles of Computers and Robotics in Biological Macromolecular Research (1989)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biophysics and Biomolecular Structure 18 (1989), S. 1-24 
    Details
    ISSN: 0084-6589
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.bb.18.060189.000245
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Impairment of conditioned freezing to tone, but not to context, in Fyn-transgenic mice: relationship to NMDA receptor subunit 2B function (2005)
    Oxford, UK : Blackwell Science Ltd
    European journal of neuroscience 21 (2005), S. 0 
    Details
    ISSN: 1460-9568
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We previously demonstrated that transgenic mice overexpressing Fyn tyrosine kinase exhibit higher seizure susceptibility and enhanced tyrosine phosphorylation of several proteins, including the N-methyl-D-aspartate (NMDA) receptor subunit 2B (NR2B). In the present study, we analysed behavioural phenotypes, especially conditioned fear responses, of Fyn-transgenic (TG) mice to better understand the role of Fyn in learned emotional behaviour. Tone-dependent conditioned freezing was significantly attenuated in Fyn-TG mice, whereas context-dependent freezing was unaffected. Neither massed nor spaced conditioning ameliorated the attenuation of tone-dependent freezing. However, the selective NR2B antagonist ifenprodil, when administered before conditioning, restored tone-dependent freezing in Fyn-TG mice at a dose that did not affect freezing in wild-type (WT) mice. These results suggest that impairment of tone-dependent conditioned freezing in Fyn-TG mice is caused by disruption of the NR2B-containing NMDA receptor function. Tyrosine phosphorylation of brain proteins, including NR2B, was enhanced in Fyn-TG mice compared with that in WT mice. We also found that ifenprodil significantly suppressed the enhanced tyrosine phosphorylation. Thus, our data support the notion that NMDA receptor activity is tightly correlated with protein tyrosine phosphorylation, and Fyn might be one key molecule that controls tone-dependent conditioned freezing through the regulation of NMDA receptor function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-9568.2005.03955.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Influence of viral infection on the development of nasal hypersensitivity (2005)
    Oxford, UK : Blackwell Science Ltd
    Clinical & experimental allergy 35 (2005), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background The underlying relationship between viral infections and allergic diseases of the upper respiratory tract has not been well clarified.Methods In order to clarify the relationship between viral infection and nasal hypersensitivity, mice were sensitized with ovalbumin (OVA) and then infected intranasally with respiratory syncytial virus (RSV), after which their nasal sensitivity to histamine or antigen was examined.Results Non-sensitized mice showed transient mild nasal hypersensitivity following nasal administration of histamine after intranasal RSV inoculation. In mice sensitized with OVA, RSV infection significantly exaggerated their nasal hypersensitivity to histamine and OVA. Treatment of these mice with a neurokinin (NK)-1/NK-2 receptor antagonist, but not with anti-IL-5 antibodies, reduced their hypersensitivity. The infiltration of nasal mucosa with eosinophils was temporarily associated with accelerated rate of RSV elimination in these animals.Conclusion RSV infection induced transient nasal hypersensitivity. Several mechanisms, including impairment of nasal epithelial cells are thought to mediate this effect. In allergen-sensitized mice, RSV inoculation strongly enhanced nasal hypersensitivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.2005.02216.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Synchrotron-radiation study of phase transitions in phosphorus at high pressures and temperatures (1987)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 20 (1987), S. 406-410 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: Results are reported of an investigation using synchrotron radiation into the effects of temperatures up to 1173 K on pressure-induced phase transitions in phosphorus. A cubic type multi-anvil press was employed and a diffraction pattern in an energy-dispersive mode was taken for a period of time, typically 200 s, without suffering from a deterioration of the sample material. The pressure of the first transition, orthorhombic–rhombohedral (As-type), decreases with increasing temperature at a rate of 2.3 MPa K−1 and the As-type structure is stable at a pressure as low as 2.6 GPa at a temperature of 1073 K. The volume discontinuity at the transition, ΔV, is 10% at room temperature and remains almost unchanged with increasing temperature. The axial ratio c/a, when the rhombohedral structure is referred to the hexagonal system, changes mostly with pressure but only slightly with temperature, approaching √6 = 2.45 on going to the second transition, rhombohedral–simple cubic. The pressure of this transition, in contrast to the first one, is independent of temperature but ΔV at this transition, 3.7%, continuously decreases with increasing temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889887086394
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Transformation and Precipitation Behavior in the New Conceptual TMCP Process Utilizing Heat Treatment On-Line Process (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 539-543 (Mar. 2007), p. 4732-4737 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: New conceptual TMCP process for manufacturing high strength steel plates, which isapplied an on-line heat treatment immediately after accelerated cooling (ACC), was developed.Transformation and precipitation behavior in the new TMCP process was investigated andcompared with those in conventional ACC process and quenching and tempering process (Q+T).In the ACC process and Q+T process, microstructures were consisted of bainitic ferrite andsecond phase, such as cementite or martensite-austenite constituent (MA). And fine carbides, whichwere formed randomly, were observed in Q+T steel. On the other hand, in the new TMCP processpolygonal ferrite was observed in addition to bainitic ferrite and cementite, and two kinds ofprecipitation forms, random precipitation and row precipitation, were observed. It was found thatferrite transformation is promoted during heating after accelerated cooling, which brings rowprecipitation of fine carbides.Furthermore, Control of the formation of MA this new TMCP process. In the conventionalACC process, MA constituents are formed from carbon enriched untransformed austenite during aircooling after ACC, and formation of MA is hard to prevent for higher strength steels. On the otherhand, carbon enrichment to untransformed austenite can be prevented by carbide formation duringon-line heat treatment after ACC. It was demonstrated that homogeneous microstructure with verylow amount of MA constituents was achieved by the new TMCP process. And, absence of brittlephase brought excellent resistance to hydrogen induced cracking in NACE sour environment.In this paper, details of the metallurgical and mechanical feature of this new TMCP steel werediscussed, and application to sour resistant linepipe steel was introduced
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.4732.pdf
    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...