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  • Springer  (40)
  • Hindawi
  • MDPI Publishing
  • Molecular Diversity Preservation International (MDPI)
  • 1995-1999  (40)
  • 1
    Electronic Resource
    Electronic Resource
    $l$ -independence of the trace of monodromy (1999)
    Springer
    Mathematische Annalen 315 (1999), S. 321-340 
    Details
    ISSN: 1432-1807
    Keywords: Mathematics Subject Classification (1991):14F20, 14F30, 14G25
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00004247
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  • 2
    Electronic Resource
    Electronic Resource
    Substrate-assisted laser patterning of indium tin oxide thin films (1999)
    Springer
    Applied physics 69 (1999), S. S875 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.80.Ba; 81.65.Cf
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. Maskless laser patterning of indium tin oxide (ITO) thin films was studied by the use of a diode-pumped Q-switched Nd:YLF laser. The ITO films were sputter-deposited either on lime glass, the standard substrate material for flat panel display applications, or fused quartz so that the efficiency of laser patterning as a function of substrate absorption could be studied. The laser wavelength was varied among infrared (λ=1047 nm), visible (λ=523 nm), and ultraviolet (λ=349 nm and λ=262 nm). It is observed that strong light absorption by the substrate is a crucial requirement for a residue-free patterning of the ITO film. Observations and numerical calculations of the laser-induced surface temperature indicate that material removal occurs via thermal vaporization and that other mechanisms such as photochemical decomposition or spallation can be neglected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390051550
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  • 3
    Electronic Resource
    Electronic Resource
    Nitrogen content in feces and the diet of Sika deer on the Boso Peninsula, central Japan (1999)
    Springer
    Ecological research 14 (1999), S. 249-253 
    Details
    ISSN: 1440-1703
    Keywords: Cervus nippon ; density-dependent limitation ; fecal nitrogen ; rumen nitrogen ; seasonal fluctuation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Fecal and rumen nitrogen content of Sika deer (Cervus nippon Temminck 1838) on the Boso Peninsula, central Japan, were analyzed concerning their seasonal fluctuations and local differences at four areas on the Boso Peninsula. The mean fecal nitrogen was high in August and low in February in all the areas. The seasonal variation, however, was relatively small. This may be the result of the following reasons: the Boso deer feed on evergreen broad-leaves containing a high and stable nitrogen content in winter; little snow falls there; and the deer consume foods relatively low in nitrogen in summer. The fecal and rumen nitrogen content in both summer and winter depended on deer density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1440-1703.1999.143303.x
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  • 4
    Electronic Resource
    Electronic Resource
    Thermal analysis of powdered alumina materials (1997)
    Springer
    Journal of thermal analysis and calorimetry 49 (1997), S. 961-970 
    Details
    ISSN: 1572-8943
    Keywords: distribution constant ; DSC ; powder compact ; Rosin-Rammler particle size distribution ; thermal resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract How a DSC result is influenced by the particle size distribution of a powder sample is shown, and a simple and optimal method to be included in a routine DSC analysis (e.g., purity determination) to improve the reliability of the analysis is proposed. In case ofα-Al2O3 powder, most reliable heat capacity data can be obtained by preparing a powder with a self-similar particle size distribution with a distribution constant of 0.7, and by compressing it under a pressure of 1.5 MPa for a duration of 5 min or longer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996782
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  • 5
    Electronic Resource
    Electronic Resource
    DSC of etched aluminum foils for use in electrolytic capacitors (1997)
    Springer
    Journal of thermal analysis and calorimetry 49 (1997), S. 1305-1314 
    Details
    ISSN: 1572-8943
    Keywords: DSC ; electrolytic capacitors ; etched Al foils ; thermal resistance ; transient state
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A DSC method for evaluating the surface area of etched Al foils for use in high performance electrolytic capacitors is presented. A linear relationship between the etching degree (effective surface area) and the thermal resistance of the sample is obtained by means of DSC, based on the transient phenomenon. This method using the transient state in DSC measurement is not only novel, but also rapid and simple in evaluating the surface area of an etched aluminum foil. The method is effective even when the Al foil has a naturally oxidized surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01983688
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  • 6
    Electronic Resource
    Electronic Resource
    Transient DSC, a Novel and Rapid Method for Assessing Pharmaceutical Powder Compacts (1999)
    Springer
    Journal of thermal analysis and calorimetry 56 (1999), S. 1311-1316 
    Details
    ISSN: 1572-8943
    Keywords: alumina ; aluminum oxide ; compact ; DSC ; particles ; pentaerythritol tetraacetate ; pharmaceuticals ; powder ; thermal resistance ; transient state
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The previously described method involving the use of transient DSC was applied to pharmaceutical powder compacts and to ceramic powder compacts. The samples were prepared by compressing powders of pentaerythritol tetraacetate and two kinds of alumina powder (differing in particle size distribution) up to a pressure of 20 MPa by using a jig. For pentaerythritol tetraacetate, a linear relationship was obtained between the parameter obtained by DSC and the compaction pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010198221472
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  • 7
    Electronic Resource
    Electronic Resource
    Cellular localization and distribution of glucocorticoid receptor immunoreactivity and the expression of glucocorticoid receptor messenger RNA in rat pituitary gland (1999)
    Springer
    Cell & tissue research 295 (1999), S. 207-214 
    Details
    ISSN: 1432-0878
    Keywords: Key words Glucocorticoid receptor (GR) ; Immunohistochemistry ; In situ hybridization ; Pituitary ; Rat (Wistar)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract By means of double immunohistochemical techniques and a nonradioisotopic in situ hybridization method, we determined the colocalization pattern of glucocorticoid receptor (GR) and pituitary hormones and the GR messenger RNA (mRNA) expression in the pituitaries of Wistar adult male rats. Immunoreactivity for GR was detected in the nuclei of cells in the anterior and posterior pituitary. Double immunohistochemistry revealed that the colocaliza- tion of GR and anterior pituitary hormones occurred in almost 99% of the growth hormone (GH)-producing cells and adrenocorticotropic hormone (ACTH)-producing cells, and in 67% of the thyroid stimulating hormone (TSH)-producing cells. Almost all of the folliculostellate cells (93%), marginal layer cells (94%) in the anterior pituitary, and pituicytes (96%) in the posterior pituitary immunostained for S100 protein antibody were also immunostained with GR. GR mRNA was abundant in the cytoplasm of anterior and intermediate pituitary cells but scattered sparsely in that of the posterior pituitary. These results suggest that glucocorticoids directly influence certain pituitary cells in order to regulate cell function, including the synthesis and/or secretion of hormones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410051226
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  • 8
    Electronic Resource
    Electronic Resource
    Auto-navigation of a wheelchair (1997)
    Springer
    Artificial life and robotics 1 (1997), S. 141-146 
    Details
    ISSN: 1614-7456
    Keywords: Self-localization ; Wheelchair ; Obstacle avoidance ; Landmark ; Slit-laser
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper presents an autonomous wheelchair system with the capability of self-localization and obstacle avoidance. In our system, the ceiling lights are chosen as landmarks to realize the self-localization of the wheelchair, and a laser range-finder is used for obstacle avoidance. First the approaches of landmark recognition and selflocalization for the wheelchair are proposed. Then the principle of obstacle avoidance using a laser range-finder is described. Finally, the total system of the wheelchair is introduced and a navigational experiment is described. Experimental results indicate the effectiveness of our system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02471129
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  • 9
    Electronic Resource
    Electronic Resource
    μSR studies of the low‐temperature magnetism in a valence‐fluctuation compound Sm3Se4 (1997)
    Springer
    Hyperfine interactions 104 (1997), S. 151-156 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract μ+SR measurements have been performed on a semiconducting valence‐fluctuation compound Sm3Se4 and its reference system Sm2Se3. The μ+SR data indicate the development of spin‐glass‐like magnetic order in Sm3Se4 at low temperatures, while no evidence for the onset of static or quasi‐static magnetism has been detected in Sm2Se3 down to \cong0.1 K. The results are discussed in connection with the previous specific‐heat measurements on Sm3Se4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012667507958
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  • 10
    Electronic Resource
    Electronic Resource
    Charge segregation in Yb4As3 observed using172Yb PAC probe (1996)
    Springer
    Hyperfine interactions 97-98 (1996), S. 125-132 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present results of PAC measurements in heavy-fermion compound Yb4As3. The quadrupole hyperfine interaction has been investigated over the temperature range 78–850 K. The interpretation of the experimental data yields a microscopic proof of the existence of a charge-ordered state with periodic arrangement of Yb2+ and Yb3+ ions in the low temperature phase. In the high temperature phase all Yb ions are in a valence fluctuating state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02150172
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