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
Filter
  • InSb  (3)
  • Physics  (3)
  • Chlamydomonas reinhardtii  (2)
  • 1
    Digitale Medien
    Digitale Medien
    Measurement of the thermal conductivity of molten InSb under microgravity (1991)
    Springer
    International journal of thermophysics 12 (1991), S. 783-790 
    Details
    ISSN: 1572-9567
    Schlagwort(e): InSb ; microgravity ; molten InSb ; thermal conductivity ; transient hot-wire method ; space experiment
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Thermal conductivity of molten InSb was measured on board the TEXUS-24 sounding rocket by the transient hot-wire method using the originally designed thermal conductivity measurement facility (TCMF). Measurements made through this facility were affected by natural convection on the ground. This natural convection was confirmed to be sufficiently suppressed during a microgravity environment. The thermal conductivity of molten InSb was 15.8 and 18.2 W·m−1·K−1 at 830 and 890 K, respectively.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00502405
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Measurement of the thermal conductivity of molten semiconductors (1988)
    Springer
    International journal of thermophysics 9 (1988), S. 933-940 
    Details
    ISSN: 1572-9567
    Schlagwort(e): alumina ; high temperature ; InSb ; thermal conductivity ; transient hot-wire method
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The thermal conductivity of molten InSb in the temperature range between 800 and 870 K was measured by the transient hot-wire method using a ceramic probe. The probe was fabricated from a tungsten wire printed on an alumina substrate and coated with a thin alumina layer. The thermal conductivity was found to be about 18 W· m−·K−at the melting point and increased moderately with increasing temperature. The thermal conductivity of alumina used as the substrate for the probe was also measured in the same temperature range.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01133261
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Thermophysical properties data on molten semiconductors (1992)
    Springer
    International journal of thermophysics 13 (1992), S. 1061-1084 
    Details
    ISSN: 1572-9567
    Schlagwort(e): density ; GaAs ; GaSb ; Ge ; high temperature ; InP ; InSb ; molten state ; semiconductors ; Si ; surface tension ; thermal conductivity ; viscosity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Thermophysical properties of molten semiconductors are reviewed. Published data for viscosity, thermal conductivity, surface tension, and other properties are presented. Several measurement methods often used for molten semiconductors are described. Recommended values of thermophysical properties are tabulated for Si, Ge, GaAs, InP, InSb, GaSb, and other compounds. This review shows that further measurements of thermophysical properties of GaAs and InP in the molten state are required. It is also indicated that a very limited amount of data on emissivity is available. Space experiments relating to thermophysical property measurements are described briefly.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01141216
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Epifluorescent microscopic studies on the mechanism of preferential destruction of chloroplast nucleoids of male origin in young zygotes ofChlamydomonas reinhardtii (1985)
    Springer
    Protoplasma 125 (1985), S. 43-52 
    Details
    ISSN: 1615-6102
    Schlagwort(e): Chlamydomonas reinhardtii ; Chloroplast nucleoidal destruction ; RNA synthesis ; UV interference
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The studies on the kinetics of nucleoid destruction reported here showed that destruction of chloroplast nucleoids (ct nucleoids) of male origin began to occur at about 30 minutes after mixing of male (mt−) and female (mt+) gametes. The timing of initiation of the destruction differed among zygotes but usually occurred during 50–120 minutes after mixing. About 10 minutes was required for complete digestion of the ct nucleoids. UV irradiation on young zygotes or addition of an RNA-synthesis inhibitor, actinomycin D, to the incubation medium during the first 0–30 minutes after mixing almost completely inhibited the incorporation of3H uridine into the cell nuclei and the preferential destruction without inhibiting cell nuclear fusion. These results suggest that soon after mating,de novo RNA synthesis is concerned for the preferential destruction of ct nucleoids. To determine in which of the two cell nuclei in the zygotes the RNA is synthesized, each gamete (mt−, mt+) was irradiated with UV and mated with unirradiated gametes of opposite mating type. This treatment of the male gametes had no effect on the incorporation of3H uridine into cell nuclei and the preferential destruction of ct nucleoids but UV irradiation of female gametes almost completely inhibited the incorporation of3H uridine into cell nuclei and the preferential destruction of ct nucleoids. Similar phenomena occurred in other crosses. The UV effect was photoreactivated in about 50% by white light, suggesting that the UV target is DNA. Thus, RNA synthesized in the cell nucleus of female origin soon after mating may be responsible for the preferential destruction of ct nucleoids of male origin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01297349
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Chloroplast nucleoids in large number and large DNA amount with regard to maternal inheritance inChlamydomonas reinhardtii (1996)
    Springer
    Protoplasma 194 (1996), S. 11-17 
    Details
    ISSN: 1615-6102
    Schlagwort(e): Chloroplast nucleoid number ; Chloroplast DNA amount ; Preferential digestion ; Maternal inheritance ; Chlamydomonas reinhardtii
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary We studied the maternal chloroplast inheritance ofChlamydomonas reinhardtii by epifluorescence microscopy after staining with DNA specific fluorochrome DAPI and by genetic methods, using wild type cells and cells containing previously isolated mutation of cond-1 and cond-2. Wild type cells contained about 7 chloroplast (cp) nucleoids, while mutants, cond-1(+) and cond-2(+), contained about 14 and 23 cp nucleoids, respectively, after one week culture on agar plates. The total cpDNA contents were almost proportional to the numbers of cp nucleoids. When cells containing cond-1 or cond-2 mutation were used as a parental source to cross with wild type cells of the other parent, preferential digestion of cp nucleoids from male parent (mt−) origin occurred in the zygotes, although the frequencies of the digestion were slightly lower than that in the zygotes from the cross between wild type cells. Western blot analysis of the protein ofzyslB gene, which has been found related to preferential digestion of mt− origin cp-nucleoids DNA, showed that a high amount of this protein was detected with the initiation of preferential digestion of mt− cp nucleoids and disappeared with the completion of the digestion. Cp genetic markers for antibiotic resistance were maternally inherited in all crosses. These results showed that although the preferential digestion of cp nucleoids consisting of large number and large cpDNA amount requires a slightly longer period to complete, this high ploidy of the cp nucleoids does not disturb maternal inheritance.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01273163
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Low-temperature dielectric relaxation in poly(4,4′-oxydiphenylene pyromellitimide) (1984)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 22 (1984), S. 1399-1405 
    Details
    ISSN: 0098-1273
    Schlagwort(e): Physics ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: The effect of end groups on the low-temperature dielectric relaxation in poly(4,4′-oxydiphenylene pyromellitimide) has been studied using three kinds of samples with different content of anhydride end groups. The magnitude of the dielectric loss peak, designated here the V peak, which appears near -40°C at 1 kHz, depends on the content of anhydride end groups. If a sample with few anhydride end groups is allowed to absorb water, a loss peak appears near the temperature region of the V peak, but it disappears after subsequent heating. In contrast, a sample having a larger amount of anhydride end groups exhibits a large V peak which remains even after further heating. We conclude that the —O—portion of the anhydride end groups is responsible for the V peak, though there may be an additional contribution from absorbed water.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1984.180220804
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Physical properties and structure of silk. VIII. Effect of casting temperature on conformation of wild silk fibroin films (1985)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 23 (1985), S. 227-229 
    Details
    ISSN: 0098-1273
    Schlagwort(e): Physics ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1985.180230120
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Infrared spectroscopic studies of polymer transitions. III. Effects of sodium ion of glass transitions in styrene-based ionomers (1974)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 12 (1974), S. 633-633 
    Details
    ISSN: 0098-1273
    Schlagwort(e): Physics ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1974.180120315
    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...