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  • 1
    Electronic Resource
    Electronic Resource
    On the Mechanism of Inversion of Sugar in Mixed Solvents (1931)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 35 (1931), S. 2364-2370 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150326a014
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  • 2
    Electronic Resource
    Electronic Resource
    Analysis of the dominant modes of a slotted-helix-loaded cylindrical waveguide for use in plasma production (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 3679-3687 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This paper is concerned with a detailed analysis of the dominant modes of a slotted helix loaded in an empty waveguide, with a view to improving the efficiency of plasma production using such structures. To this end the dispersion relation for a slotted helix loaded inside a cylindrical waveguide is first derived. As in the case of a tape-helix-loaded waveguide, the different dominant modes of the system can be identified by suitable asymptotic expansions of the exact dispersion relation. For large diameter helices (kvrh〉1, where kv is the free-space wavelength of the wave and rh is the helix radius), the system has one slow wave and one fast wave as its dominant waves. The field patterns of these two modes are studied (for both slotted and tape helices) and the dominant field components corresponding to each type of helix and mode, identified from the point of view of ease in the excitation of the slow wave for plasma production. Since the fast and slow waves have overlapping dominant field components, methods are also discussed for suppressing the fast wave which can be excited more easily due to the presence of the waveguide. Finally, the state of polarization (left/right handedness) of the slow-wave mode is discussed with relevance to the coupling of the microwave to the plasma electrons in an external magnetic field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346331
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  • 3
    Electronic Resource
    Electronic Resource
    Theory of high-frequency guided waves in a plasma-loaded waveguide (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 1178-1189 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The theory of high-frequency guided waves in a plasma-loaded waveguide is presented. The formulation is based on kinetic theory. The theory includes the effects of finite electron/ion temperatures and radial gradients in the plasma density and particle temperatures. The inclusion of gradients into the formalism results in three, coupled, second-order, ordinary differential equations in the plasma fields. These equations show a singularity on the plasma axis (r=0); regularization of the field equations at the singular point leads to constraints on the plasma fields that yield the necessary boundary conditions at r=0. Using the vacuum solutions, and the boundary conditions at r=0 and the plasma–vacuum interface, the field equations are solved as a two-point boundary-value problem. The numerical methods used are also discussed. Solutions are presented in the form of dispersion curves (plots of vphase vs ω/Ωe) and radial profiles of the field polarizations for the m=±1 modes near electron cyclotron resonance (ECR). © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872647
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  • 4
    Electronic Resource
    Electronic Resource
    New family of thallium cuprate superconductors not containing calcium or barium: TlSrn+1−xLnxCunO2n+3+δ (Ln=La, Pr, or Nd) (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 2664-2666 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The first two members of the new TlSrn+1−xLnxCunO2n+3+δ (Ln=La, Pr, or Nd) series of superconducting cuprates possessing 1021 and 1122 type structures are described. The n=1 (1021) members with Tcs around 40 K have electrons or holes as the majority charge carriers depending on x. The n=2 (1122) cuprate (Ln=Pr or Nd) shows a Tc in the 80–90 K range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.102255
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  • 5
    Electronic Resource
    Electronic Resource
    New high-power arbitrary ratio power splitter at microwave frequencies (1987)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 58 (1987), S. 1123-1126 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The details of a new, high-power, arbitrary ratio, waveguide power splitter at microwave frequencies are described. The experimental results, giving the coupled powers at the two output ports for different coupling ratios, are presented for input power levels of 1 and 3 kW (cw). The results are compared with the theory for such structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139569
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  • 6
    Electronic Resource
    Electronic Resource
    High power microwave line with arbitrary impedance matching capability for plasma applications (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 244-248 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The details of a high power microwave transmission line developed for plasma applications are presented. The line operates at 2.45 GHz and can handle about (approximately-less-than)1 kW of cw microwave power with about 15%–20% insertion loss. A special feature of the line is its wide range impedance matching capability for operating under different load conditions. A coaxial triple stub tuner capable of handling high power cw microwaves was especially developed for this purpose. Detailed design considerations for the tuner and other critical components like the high power vacuum seal are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1141072
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  • 7
    Electronic Resource
    Electronic Resource
    Slow wave radiation fields of a slotted line antenna (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 501-507 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The slow wave radiation fields of a slotted line antenna are calculated inside the antenna region. For this, a realistic magnetic current distribution, which takes into account the wave-slowing action of the antenna has been chosen. It is shown that the assumed distribution becomes accurate when the number of slots is large. The numerical results show that the radial component of the electric field is the dominant component, while the on-axis value of the axial component of the magnetic field decreases with increasing antenna radius. Relevance of the results to high density plasma production using such structures is pointed out.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.345233
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  • 8
    Electronic Resource
    Electronic Resource
    Structural aspects of superconducting cuprates (1995)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 51 (1995), S. 604-618 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768194014655
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  • 9
    Electronic Resource
    Electronic Resource
    Bemerkung zur Adsorptionstheorie von Sexl (1930)
    Springer
    The European physical journal 64 (1930), S. 81-83 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01397430
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  • 10
    Electronic Resource
    Electronic Resource
    Über elektrische Adsorption und Stabilität von Kolloiden (1933)
    Springer
    Colloid & polymer science 64 (1933), S. 65-72 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01422414
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