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Publication Date: 2020-04-17Keywords: Geschichte ; History ; Binnenschiffe ; allgemeine Geschichte ; General HistoryType: Zeitschriftenartikel, journal article -
2Articles: DFG German National LicensesStaff View
ISSN: 1089-7666Source: AIP Digital ArchiveTopics: PhysicsNotes: A two-dimensional, three-fluid code based on the two-fluid Potter code [Methods in Computational Physics (Academic, New York, 1970), Vol. 9, p. 340] was developed for simulating the plasma focus discharge. With this code it is possible to treat the neutral gas in addition to the plasma components and to model the ionization and recombination phenomena. Thus the sheet dynamics in a plasma focus can be studied and effects investigated such as the occurrence of residual gas (or plasma) density behind the current sheet in the run-down phase. This is a prerequisite to the occurrence of leak currents, which are one of the causes limiting the performance of large plasma focus devices. It is shown that fast operating foci with small dimensions behave favorably compared with the "classical'' Mather focus [Methods of Experimental Physics (Academic, New York, 1971), Vol. 9B, p. 187] with long coaxial electrodes.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 0026-3141Topics: Ethnic SciencesHistoryPolitical ScienceSociologyEconomicsURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 0022-3697Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesStaff View
ISSN: 0375-9601Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0016-7479Topics: GeographyURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 0022-5096Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 0375-9601Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 0375-9601Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesGoldenbaum, G.C. ; Bruhns, H. ; Chin-Fatt, C. ; Chong, Y.P. ; DeSilva, A.W. ; Griem, H.R. ; Hart, G.W. ; Hess, R.A. ; Irby, J.H. ; Shaw, R.S. ; Zhu, Z.Y.
Amsterdam : ElsevierStaff ViewISSN: 0167-5087Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Energy, Environment Protection, Nuclear Power EngineeringPhysicsType of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1434-6036Source: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract The impact-ionization rate in InSb at 300 K between 200 and 500 V/cm is found to beg(E)=2⋅109 exp (−103/E)s−1 withE being the electric field (V/cm). We use current-voltage characteristics measured by A.C. Prior in 1957 [1]. In evaluating the impact-ionization rate we take into account Auger and linear recombination, surface generation,z-pinch compression, and doping of the sample. We also discuss the effects of ohmic heating and change in electron temperature. The rates evaluated from four independent measurements done by Prior agree reasonably well.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 0016-7479Topics: GeographyURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1432-0681Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsDescription / Table of Contents: Summary A general theory of elastoplastic deformations of thin shells is developed considering small strains. The basic equations are (i) Hooke's law in the elastic range and (ii) a generalized v. Mises criterion, which is able to describe hardening in an isotropic as well as in an anisotropic way, together with a deformation law connecting strain rates and stress rates in the plastic range. The range of elastoplastic deformations is defined by an addition of elastic and plastic strain rates. Unloading occurs in a differentiated elastic way.Notes: Übersicht Für dünne Schalentragwerke wird eine allgemeine Theorie zur Berechnung elastoplastischer Formänderungen bei kleinen Verzerrungen angegeben. Als Grundlagen dienen dazu für elastische Formänderungen das Hookesche Gesetz und für plastische Formänderungen eine verallgemeinerte v. Misessche Fließbedingung, die die Möglichkeit isotroper oder anisotroper Verfestigung noch offen läßt, verbunden mit einem Formänderungsgesetz, das die Inkremente von Verzerrungen und Spannungen miteinander verknüpft. Im Bereich elastoplastischer Formänderungen gilt eine Addition elastischer und plastischer Verzerrungsgeschwindigkeitsanteile; ein Entlastungsvorgang wird durch ein differentielles elastisches Verhalten beschrieben.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1432-069XSource: Springer Online Journal Archives 1860-2000Topics: MedicineType of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1432-069XSource: Springer Online Journal Archives 1860-2000Topics: MedicineType of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1432-069XSource: Springer Online Journal Archives 1860-2000Topics: MedicineType of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 1432-069XSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Zusammenfassung Unsere Beobachtung von Lupus pernio ist klinisch ein absolut reiner Fall, histologisch zeigt er durch seine Anhäufung von Plasma- und Riesenzellen und durch die auffallend diffuse Anordnung der epitheloiden Zellen eine Abweichung von dem gewöhnlichen Bild. Daher erscheint eine Identifizierung mit dem Boeckschen benignem Miliarlupoid, von dem oben gleichzeitig ein klinisch und histologisch ganz typischer Fall beschrieben wird, ungezwungen nicht möglich. Für Tuberkulose und auch für Allgemeinerkrankung des Organismus (Schaumanns Lymphogranuloma benignum) ist in unserem Fall von Lupus pernio kein Anhaltspunkt, auch nicht für die Gleichstellung des Krankheitsbildes mit der Sternbergschen Lymphogranulomatose.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1432-069XSource: Springer Online Journal Archives 1860-2000Topics: MedicineType of Medium: Electronic ResourceURL: