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  • 1
    Electronic Resource
    Electronic Resource
    Thermal imbalance errors and effective area in guarded hot plates (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 99-105 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An analytical equation is derived for the error heat flow due to thermal imbalance between the hot plate and the guard in the case of an infinite strip. Finite element calculations show that the same equation can be used for circular plates with negligible error. The equation can also be extended to square plates if corner effects are neglected. By combining the present solution and a previous one by Woodside [Rev. Sci. Instrum. 28, 1033 (1957)], an expression is derived for the effect of the distortion of heat-flow lines near the gap even when thermal balance is obtained. The availability of this expression opens the possibility of using larger gaps than previously, to reduce thermal imbalance errors. The use of two-material specimens (test material over hot plate, insulant over guard and gap) would lessen thermal imbalance errors, material requirements, and edge effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139127
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  • 2
    Electronic Resource
    Electronic Resource
    Multilayered gated lateral quantum dot devices (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 1134-1136 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We describe a detailed device fabrication technique for the formation of a lateral quantum dot using a multilayered gated design. In our versatile system, a quantum dot is electrostatically defined by a split gate and two overlaying finger gates which introduce entrance and exit barriers to the dot. Periodic and continuous conductance oscillations arising from Coulomb charging effects are clearly observed in the transport properties at low temperatures. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.125961
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  • 3
    Electronic Resource
    Electronic Resource
    Scanning noninvasive voltage probe operating at 4.2 K (2001)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 72 (2001), S. 2100-2105 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A noninvasive voltage probe, consisting of a one-dimensional channel, has been fabricated within a modulation doped GaAs/AlGaAs heterostructure. With precision piezoelectric scanning equipment this probe has been brought to within 14 nm of a semiconductor device which includes surface gates and a 300 nm deep two-dimensional electron gas. Measurements of voltages applied to these conducting layers have been made at room temperature and at 4.2 K using the sensitive conductance of the one-dimensional channel. A voltage resolution of 0.48 mV has been observed at 4.2 K. Probe conductance measurements have also been made as a function of probe–sample separation. The conductance–separation data were fitted using a simple parallel plate capacitor model and a height resolution of 4 nm was calculated. Images of the sample layers have been obtained and a lateral resolution of 760 nm observed. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1351839
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  • 4
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    Y. Ben-Arieh, "Jerusalem in the 19th Century" (Book Review) (1987)
    London : Periodicals Archive Online (PAO)
    Journal of historical geography. 13:2 (1987:Apr.) 206 
    Details
    ISSN: 0305-7488
    Topics: Geography
    Description / Table of Contents: Other Studies
    Notes: Reviews
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h349-1987-013-02-000024
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  • 5
    Electronic Resource
    Electronic Resource
    Immunogold localization of acyl carrier protein in plants and Escherichia coli: Evidence for membrane association in plants (1988)
    Springer
    Planta 175 (1988), S. 145-152 
    Details
    ISSN: 1432-2048
    Keywords: Acyl carrier protein ; Brassica (Acyl carrier protein) ; Escherichia ; Lipid synthesis ; Persea ; Plastid (acyl carrier protein) ; Thylakoid membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Immunogold labelling was used to study the distribution of acyl carrier protein (ACP) in Escherichia coli and a variety of plant tissues. In E. coli, ACP is distributed throughout the cytoplasm, confirming the observation of S. Jackowski et al. (1985, J. Bacteriol., 162, 5–8_. In the mesocarp of Avocado (Persea americana) and maturing seeds of oil-seed rape (Brassica napus cv. Jet Neuf), over 95% of the ACP is localised to plastids. The protein is almost exclusively located in the chloroplasts of leaf material from oil-seed rape. Approximately 80% of the gold particles associated with the ACP were further localized to the thylakoid membrane of the chloroplast. Since acetyl-CoA carboxylase has been reported to be localized to the thylakoid membrane (C.G. Kannangara and C.J. Jensen, 1975, Eur. J. Biochem., 54, 25–30), these results are consistent with the view that the two sequential enzymes in fatty-acid synthesis are in close spacial proximity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00392423
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