Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Digitale Medien
    Digitale Medien
    Superplastic Titanium Tanks for Propulsion System of Satellites (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 551-552 (July 2007), p. 43-48 
    Details
    ISSN: 1662-9752
    Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Thema: Maschinenbau
    Notizen: Institute of Space and Astronautical Science (ISAS/JAXA) in collaboration withMitsubishi Heavy Industries (MHI) has developed fuel and gas tanks for reaction control system andorbital control system of satellites; A tank is fabricated through welding of two thin, hemi-spherical orconical parts, which are fabricated by superplastic blow forming. Mass-productivity is not animportant factor but the forming precision and flexibiliry in the process are important for thisapplication. ISAS and MHI, therefore, developed a new blow-forming technique, which has highflexibility in terms of tank size because it requires a furnace but not a hot-press machine. Some typicalpropulsion tanks fabricated through this process are presented
    Materialart: Digitale Medien
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.551-552.43.pdf
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Organization and embryonic expression of the chicken N-myc gene
    Amsterdam : Elsevier
    Cell Differentiation and Development 27 (1989), S. 132 
    Details
    ISSN: 0922-3371
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0922-3371(89)90405-X
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Histamine H"1-receptor in the retina: Species differences
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 150 (1988), S. 316-322 
    Details
    ISSN: 0006-291X
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/0006-291X(88)90522-0
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Cell cycle dependent change in the endogenous phosphorylation of nucleolar proteins of Physarum polycephalum
    Amsterdam : Elsevier
    FEBS Letters 124 (1981), S. 53-56 
    Details
    ISSN: 0014-5793
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Physik
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0014-5793(81)80052-X
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    An Apparatus for Specific Heat Capacity Measurement by Thermal Radiation Calorimetry (1999)
    Springer
    International journal of thermophysics 20 (1999), S. 709-719 
    Details
    ISSN: 1572-9567
    Schlagwort(e): calorimetry ; emissivity ; high temperature specific heat capacity ; thermal radiation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Specific heat capacity measurements of disk-shaped specimens have been performed with an apparatus based on thermal radiation calorimetry. The specimen surfaces were irradiated by two fiat heaters in a vacuum chamber so that homogeneous temperature distribution within an insulating specimen was achieved. Homogeneity was confirmed by computer simulation based on the control-volume method. The values of specific heat capacity were obtained by measurement of the specimen temperature, the time rate change of the specimen temperature, and the radiant power from the heater for heating and cooling modes. The specific heat capacities of Ni metal, A12O3 ceramic, MgO ceramic, and A1N ceramic were measured in the temperature range from 220 to 500°C to confirm the validity of this calorimeter. The relative error involved in the measured values was estimated to be ±3%.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1022629709942
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Conventional Simultaneous Measurement of Specific Heat Capacity and Thermal Conductivity by Thermal Radiation Calorimetry (1998)
    Springer
    International journal of thermophysics 19 (1998), S. 291-304 
    Details
    ISSN: 1572-9567
    Schlagwort(e): calorimetry ; emissivity ; high temperature ; specific heat capacity ; thermal conductivity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Thermal radiation calorimetry has been applied to measure the thermal conductivity and the specific heat capacity of an isolated solid specimen simultaneously. The system, in which a disk-shaped specimen and a flat heater are mounted in a vacuum chamber with the specimen heated on one face by irradiation, is presented. A theoretical formulation of the simultaneous measurement at quasi-steady state is described in detail. Noncontact temperature measurement of both specimen surfaces has been performed using pyrometers and a thermocouple set in the gap between the heater and the specimen. Pyroceram 9609 specimens, whose surfaces were blackened with colloidal graphite, were used in the measurement. The largest error involved in the noncontact temperature measurement is ±2°C in the range from 450 to 650°C. The resultant values of the specific heat capacity and the thermal conductivity deviate by about 10% from the recommended values for the Pyroceram specimen.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1021419723292
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Radiant Power Exchange in Thermal Radiation Calorimetry (1998)
    Springer
    International journal of thermophysics 19 (1998), S. 305-315 
    Details
    ISSN: 1572-9567
    Schlagwort(e): calorimetry ; emissivity ; heat capacity ; high temperature ; radiant exchange
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Radiant power exchange for thermal radiation calorimetry was investigated both theoretically and experimentally. The geometrical relation in which a disk-shaped copper specimen and a graphite plate are facing each other was used as the model configuration. Surfaces of the specimen and the plate were blackened with colloidal graphite to achieve a high surface emissivity. The radiant power density absorbed by the specimen was calculated by taking into account the geometrical configuration factors and the total emissivity of the blackened surfaces obtained form spectral reflectivity. A value of 0.56±0.01 was obtained for the radiant power exchange coefficient from the theoretical results in the temperature range from 220 to 430°C. The coefficient obtained experimentally by use of a heat capacity measurement was constant with temperature, with a value of 0.54±0.01 within experimental error. No hysteresis in the coefficient was observed for either heating or cooling processes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1021471707363
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Measurement of Specific Heat Capacity from 150 to 310 K by Thermal Radiation Calorimetry (1999)
    Springer
    International journal of thermophysics 20 (1999), S. 721-731 
    Details
    ISSN: 1572-9567
    Schlagwort(e): effective emissivity ; specific heat capacity ; thermal radiation calorimetry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract A novel method for measurement of the specific heat capacity in the temperature range from 150 to 310 K is described. In order to achieve good temperature homogeneity in a disk-shaped specimen, a cylindrical heater was used in an apparatus based on thermal radiation calorimetry. A mixture of Bi2O3 and MgO powders was used for blackening the surfaces of the specimen, the heater, and the inside wall of the chamber. The specific heat capacities of Ni, fused quartz glass, and BaTiO3 ceramic were measured to test the performance of the calorimeter. Agreement to within 5% of the values published in the literature was obtained for these samples. Thermal hysteresis and anomalies associated with the first-order phase transition in BaTiO3 were detected in the present experiment.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1022681826780
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Evaluation of Hemispherical Total Emissivity for Thermal Radiation Calorimetry (2000)
    Springer
    International journal of thermophysics 21 (2000), S. 927-940 
    Details
    ISSN: 1572-9567
    Schlagwort(e): calorimetry ; emittance ; fused silica ; hemispherical total emissivity ; refractive index ; spectral emissivity ; thermal conductivity ; virtual mode ; Vycor glass
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract An attempt to derive the hemispherical total emissivity from the normal emission spectrum is proposed for Vycor and fused silica glasses. The normal emission spectrum from a clear surface has been measured at steady state in the temperature range from 400 to 750 K. The sample is heated on one metal-backed face by thermal radiation from a heater. Temperatures inside the sample were monitored by thermocouples at two points near the surfaces. Evaluation of the hemispherical total emissivity from the normal emission spectrum is determined by means of Kramers–Krönig analysis and virtual mode equations. Assuming a linear temperature distribution within the sample, the thermal conductivities of silicate glasses were obtained at elevated temperatures. The results are comparable with those obtained by previous investigators. The effect of radiation heat transfer in a sample is also discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1006670409740
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Simultaneous Measurement of Specific Heat Capacity, Thermal Conductivity, and Thermal Diffusivity by Thermal Radiation Calorimetry (1999)
    Springer
    International journal of thermophysics 20 (1999), S. 733-742 
    Details
    ISSN: 1572-9567
    Schlagwort(e): calorimetry ; diffusivity ; emissivity, heat capacity ; radiant exchange ; simultaneous measurement ; thermal conductivity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Thermal radiation calorimetry has been applied to measure the thermal diffusivity of a solid specimen, along with simultaneous measurements of specific heat capacity and thermal conductivity. In this calorimeter, a disk-shaped solid specimen whose surfaces are blackened is heated and cooled slowly on one face by irradiation in a vacuum chamber. A quasi-steady-state approximation in which a linear temperature gradient within the specimen was assumed is considered in the analysis. The validity of this approximation was confirmed by the results of computer simulation based on the control-volume method. Measurements of Pyroceram 9606 and Pyrex 7740 by use of thermocouples in the temperature range between 250 and 400°C gave values consistent with those obtained by previous authors, within experimental error, for all three thermophysical properties.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1022633910850
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...