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  • 1990-1994  (4)
  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Miniaturization limit of a cloth inductor (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 3394-3396 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A cloth-structured magnetic device was designed, and the optimized relation between amorphous fiber and conductive fiber size was shown. The inductance, equivalent resistance, and quality factor of cloth-structured magnetic devices were calculated. Furthermore, the stray capacitance of the device was estimated from the analysis of an equivalent circuit. A cloth inductor of only 0.7 mm thickness could be made, which could have an inductance of 100 μH, a rating current of 100 mA, and a quality factor over 60. Regarding the further miniaturization of the device, the magnetic flux distribution established inside the cloth inductor was measured. The miniaturization limit was estimated, which was influenced by the magnetic permeability and the aspect ratio of the fibers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340794
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Improved microscratch hardness of ion-plated carbon film by nitrogen inclusion evaluated by atomic force microscope (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 65 (1994), S. 3206-3208 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Nitrogen-containing carbon films where deposited by reactive ion plating under a pure nitrogen ambient. Knoop hardness, microindentation hardness, and microscratch hardness of these films were evaluated. Indentation hardness, such as Knoop hardness and microindentation hardness, is influenced by surface roughness and substrate hardness, so the effect of nitrogen inclusion on the hardness cannot be clearly evaluated. In contrast, an atomic force microscope can clearly evaluate the effect of nitrogen inclusion on scratched wear depth. © 1994 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.112414
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Existence of exine-free airborne allergen particles of Japanese cedar (Cryptomeria japonica) pollen (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 46 (1991), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We investigated whether exine-free pollen allergen particles exist together with the intact pollen grains of Japanese cedar (Cryptomeria japonica) in the air during the pollen season in Yamagata City. First, we separated the allergen particles in an Andersen multi-stage air-sampler according to their aerodynamic diameters. The amount of major allergen (Cry j I) on each stage of the sampler was determined by a sensitive fluorometric sandwich ELISA, and the pollen count of the same samples was done by light microscopy after Carberla staining. Cry j I was found in stages 1 to 6, whereas most of intact and ru|3tured pollen grains were microscopically observed only in stages 1 and 2. Second, we suctioned the air through a tandem membrane filter system (the first filter, Nuclepore filter with 5 um-pores; and the second, Millipore filter with 0.3 μm-pores). None of the pollen grains was detectable on the 0.3 μm-pore filter with light microscopy. However, Cry j I was detectable in the aqueous extract from the second filter. From these results, we concluded that pollen-free Cry j I existed in the air of Yamagata City during the pollen season.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1991.tb00628.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Periventricular hyperintensity on magnetic resonance imaging correlated with brain ageing and atrophy (1993)
    Springer
    Neuroradiology 35 (1993), S. 125-129 
    Details
    ISSN: 1432-1920
    Keywords: Periventricular hyperintensity ; Brain atrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Fifty-two patients with cerebrovascular risk factors without neurological abnormalities were reviewed with respect to periventricular hyperintensity (PVH) on T2-weighted magnetic resonance imaging (MRI); brain atrophy was also assessed by CT and T1-weighted MRI. Extensive PVH showed a stronger correlation with agerelated atrophy than mild or absent PVH. The relative volume of brain affected by PVH, calculated by computer, also correlated with brain atrophy, especially ventricular enlargement. The effects of PVH on brain ageing and atrophy is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593968
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Serological response to P-fimbriae ofEscherichia coli in patients with urinary tract infections (1989)
    Springer
    European journal of clinical microbiology & infectious diseases 8 (1989), S. 156-159 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The antibody response to P-fimbriae ofEscherichia coli in patients with upper urinary tract infections was investigated. In the sera of patients with pyelonephritis obtained at the initial visit to hospital (3 to 7 days after the onset of symptoms), a high incidence of antibodies to P-fimbriae was detected (12 out of 14 patients). P-fimbriatedEscherichia coli strains were isolated from urine samples in all of these antibody-positive patients. Antibodies detected by ELISA using purified antigen were essentially IgG and specifically recognized P-fimbriae. These antibodies inhibited completely, or in some cases partially, mannose-resistant hemagglutination with P-fimbriatedEscherichia coli.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01963903
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Sloshing in two-dimensional container with inclined side walls - boundary-element approach (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 6 (1990), S. 207-214 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Non-linear wave motion on the free water surface in a two-dimensional container subjected to external periodical excitation is considered in this paper. In order to analyse the problem for arbitrary container geometries, a solution scheme using free surface Lagrangean particles is employed. Fluid motion is assumed to be governed by the Laplace equation in terms of the velocity potential with a non-linear pressure equation on the surface. The boundary element method with explicit time marching is used by the fluid region boundary discretization alone at each time increment. Various containers with an inclined side wall are analysed for the horizontal sway motion and compared.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630060307
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    Paper (German National Licenses)
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