ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
  • Nature Publishing Group  (8)
  • Institute of Physics  (7)
  • American Institute of Physics (AIP)  (5)
  • 1985-1989  (12)
  • 1975-1979  (8)
Sammlung
Verlag/Herausgeber
Erscheinungszeitraum
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    dc electroluminescence in copper-free Zns:Mn thin films. I. Local destructive breakdown and its dependence on preparation and test conditions (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 714-721 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The proportion of random localized destructive breakdown to stable electroluminescence has been varied continuously by adjusting (1) the recipe used to fabricate dc thin-film electroluminescent devices and (2) the conditions under which they have been tested. It has been shown that neither simple geometrical artifacts nor migration effects can be responsible for localized destructive breakdown. Rather, it has been established that the experiments require an explanation based on a fundamental tendency for dc thin-film electroluminescence to be associated with a current-controlled negative differential resistance which gives rise to filamentary and sometimes destructive current concentration. It is concluded that the existence and origins of such current-controlled negative differential resistance should be tested by theoretical and materials science studies.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.338223
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Trapping of gun-injected plasma by a tokamak (1987)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 30 (1987), S. 2877-2884 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: It has been seen that a plasma produced by a Marshall gun can be injected into and trapped by a tokamak plasma. This trapping of a gun-injected plasma is explained in terms of a depolarization current mechanism. A model is developed that describes the slowing of a plasma beam crossing into the magnetic field of a tokamak. The slowing down time is shown to go as τs∝T3/2eL2/nbα20, where nb and Te are the density and temperature of the plasma beam and α0/L is the pitch of the field lines per unit length in the direction in which the beam is traveling. Experimental tests of this model are consistent with the scaling predictions.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.866052
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Observation of helical sawtooth oscillations in a tokamak (1985)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 28 (1985), S. 3429-3431 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: In the Tokapole II tokamak [Nucl. Fusion 19, 1509 (1979)] the three-dimensional structure of the rapid sawtooth crash that accompanies internal disruptions has been observed. The sawtooth crash is helical, i.e., the decrease in soft x-ray intensity occurs along a q=1 helical contour, in accord with the standard reconnection model. The poloidally asymmetric radial expansion of the crash inward from the q=1 surface provides a measure of the reconnection time consistent with single helicity reconnection from a growing, nonrotating magnetic island.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.865344
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    q measurements during sawtooth oscillations in a low q tokamak (1989)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 1 (1989), S. 2139-2141 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The central safety factor during a sawtooth oscillation in material limiter tokamak discharges (scrapeoff plates inserted to the separatrix) in the TOKAPOLE II poloidal divertor tokamak [Phys. Rev. Lett. 49, 734 (1982)] is measured to be significantly less than 1 (approximately 0.7) during a sawtooth oscillation. This result is identical to that observed earlier in the same device in magnetic limiter discharges. Thus the presence of scrapeoff plasma beyond the divertor separatrix is not responsible for the absence of total reconnection.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.859078
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Polarized electron-cyclotron emission in a poloidal-divertor tokamak (1985)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 28 (1985), S. 403-408 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The polarization of electron-cyclotron emission at the second harmonic (ω=2ωce) has been measured both without and with a microwave absorber installed within view of the receiver to reduce wall reflection. Whereas without the absorber the radiation is dominantly unpolarized, with the absorber installed the radiation is significantly polarized, and the extraordinary mode intensity is typically three times the ordinary mode intensity. This indicates that wall reflections significantly depolarize the received radiation. Right-hand-cutoff effects are also observed and electron temperature is inferred from the emission from optically thin plasmas.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.865163
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Isolation and characterisation of a bipotential haematopoietic cell line (1979)
    [s.l.] : Nature Publishing Group
    Nature 277 (1979), S. 471-474 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Fig. 1 a, Cultured 416B cells stained with May-Grunwald Giemsa. Note large nuclear: cytoplasmic ratio, vacuolated cytoplasm (x750) b, Section through a pellet of 416B cells after glutaraldehyde-osmium fixation, showing the size variation of cultured cells. Three small round cells are apparent ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/277471a0
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Cancer chemotherapy: in vitro test (1978)
    [s.l.] : Nature Publishing Group
    Nature 274 (1978), S. 315-316 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE increasing success of cancer chemotherapy is real but humans and their tumours vary so widely that it is not surprising that the sensitivity of tumours to therapeutic drugs also varies equally, even within apparently pHienotypically identical tumours. Clearly, a pre-indication of the spectrum ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/274315a0
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Erythropoietin-stimulated erythropoiesis in long-term bone marrow culture (1979)
    [s.l.] : Nature Publishing Group
    Nature 281 (1979), S. 382-384 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] One reason for our previous failure to detect erythroid development in erythropoietin-stimulated long-term marrow cultures89 could be the presence of horse serum in the growth medium used to establish the cultures, which may be inhibitory for erythroid colony growth11. On the other hand, fetal calf ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/281382a0
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    In vitro duplication and ‘cure’ of haemopoietic defects in genetically anaemic mice (1977)
    [s.l.] : Nature Publishing Group
    Nature 269 (1977), S. 412-414 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The pleiotropic effects of mutations at the W and Steel (SI) loci include macrocytic anaemia, extreme radiosensi-tivity, sterility and defective pigmentation1. The lesions in W mice are presumed to be due to intrinsic defects in haemopoietic stem cells, primordial germ cells and melano-blast ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/269412a0
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Loss of immunoreactivity in long-term bone marrow culture (1978)
    [s.l.] : Nature Publishing Group
    Nature 275 (1978), S. 135-136 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The maintenance of stem cells in vitro seems to depend on prior establishment of populations of marrow derived adherent cells (including endothelial cells, large, fat-containing cells and macrophages) which we speculate provide a suitable microenvironment necessary for sustained haemopoiesis2,3. ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/275135a0
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...