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  • Polymorphism  (6)
  • thermal diffusivity  (6)
  • RH mapping  (3)
  • electrodeposition  (3)
  • Springer  (18)
  • American Physical Society
  • 2000-2004  (18)
Collection
Keywords
Publisher
  • Springer  (18)
  • American Physical Society
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Structured diffuse scattering, displacive flexibility and polymorphism in Ba-hexacelsian (2000)
    Springer
    Physics and chemistry of minerals 27 (2000), S. 194-202 
    Details
    ISSN: 1432-2021
    Keywords: Key words Hexacelsian ; Polymorphism ; Diffuse distribution ; Dynamical disorder ; Correlated tetrahedral rotation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Abstract  The results of a temperature-dependent electron diffraction study of the low frequency modes of distortion of Ba-hexacelsian and their relationship to the α-β polymorphic phase transition therein are presented. Cs- and Rb-doped Ba-hexacelsian specimens are also investigated. An extremely strong and characteristic diffuse intensity distribution in the form of polarized sheets of diffuse intensity perpendicular to the 〈1 1 0〉 directions is found for the high temperature polymorph and the doped specimens. The diffuse distribution appears to result from coupled tetrahedral rotation of 〈1 1 0〉 columns of corner-connected (Al,Si)O4 tetrahedra about the [0 0 1] axis (uncorrelated from column to column as a result of the positioning of the rotation axes).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002690050007
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  • 2
    Electronic Resource
    Electronic Resource
    Measurement of Thermal Diffusivity of Thermal Control Coatings by the Flash Method Using Two-Layer Composite Sample1 (2000)
    Springer
    International journal of thermophysics 21 (2000), S. 535-542 
    Details
    ISSN: 1572-9567
    Keywords: flash method ; thermal contact resistance ; thermal control coatings ; thermal diffusivity ; two-layer composite sample
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal diffusivity of brittle coatings cannot be measured by the flash method directly because of the difficulty of preparing free-standing samples. Adopting the flash method using a two-layer composite sample, it is possible to measure thermal diffusivity if the radiant pulse is well defined and good thermal contact on the interface of the composite sample can be ensured. Using an equilateral trapezoidal pulse of an Nd-glass laser measuring the dimensionless temperature history of the rear face of the sample, we determined the thermal diffusivity of thermal control coatings in the temperature range of 80 to 200°C. The results for different thicknesses of substrate showed that the thermal contact resistance of the interface can be neglected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006660318958
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal Diffusivity Measurement of Diamond Films1 (2000)
    Springer
    International journal of thermophysics 21 (2000), S. 479-485 
    Details
    ISSN: 1572-9567
    Keywords: diamond ; film ; flash method ; thermal diffusivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper discusses the short-pulse-flash method developed for thermal diffusivity measurements on thin films. Two kinds of CVD diamond film have been prepared, and their thermal diffusivity in the perpendicular direction has been measured with this method. The measurement errors caused by the surface coating are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006648016232
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  • 4
    Electronic Resource
    Electronic Resource
    Electrodeposition of cohesive carbon films on aluminum in a LiCl–KCl–K2CO3 melt (2000)
    Springer
    Journal of applied electrochemistry 30 (2000), S. 571-574 
    Details
    ISSN: 1572-8838
    Keywords: aluminum electrode ; carbon film ; electrodeposition ; molten salt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Electrodeposition of carbon on an aluminum electrode was studied in a LiCl–KCl–K2CO3 melt. A cyclic voltammogram for an aluminum electrode indicates that the cathodic current is due to the reduction of CO3 2− ions. Carbon films on aluminum substrates were obtained by potentiostatic electrolysis, and the cohesiveness of the films depended on the potential. SEM observations showed that the morphology of the deposited carbon film depends on the electrolytic conditions. Raman spectroscopy, XPS and XAES measurement showed that the film consisted of carbon in the sp2 state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003927100308
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  • 5
    Electronic Resource
    Electronic Resource
    Electrowinning of tellurium from alkaline leach liquor of cemented Te (2000)
    Springer
    Journal of applied electrochemistry 30 (2000), S. 315-322 
    Details
    ISSN: 1572-8838
    Keywords: alkaline leach liquor ; cemented Te ; electrodeposition ; electrowinning ; tellurium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The electrochemical behaviour of tellurium in 2.5 M NaOH solution was studied for the recovery of tellurium from alkaline leach liquor of cemented Te using steady state polarization and cyclic voltammetry. The deposition characteristics and the potential range for a stable deposit of tellurium were also investigated. The morphology of deposited Te in alkaline solution showed a very porous nature and needlelike radial growth. The potential range for stable electrodeposition was between −0.8 V and −0.95 V (vs Hg/HgO electrode), but electrowinning could be carried out at more negative potentials due to the disproportionation reaction of Te2 2−. Laboratory-scale electrowinning experiments were performed under different operating voltages, temperatures and initial Te concentrations. The current efficiency was about 85–90% for 50% recovery and about 50–60% for 90% recovery. The purity of electrodeposited Te was higher than 99.95%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003867821601
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  • 6
    Electronic Resource
    Electronic Resource
    Lack of association between atopic asthma and polymorphisms of the histamine H1 receptor, histamine H2 receptor, and histamine N-methyltransferase genes (2000)
    Springer
    Immunogenetics 51 (2000), S. 238-240 
    Details
    ISSN: 1432-1211
    Keywords: Key words Histamine H1 receptor ; Histamine H2 receptor ; Histamine N-methyltransferase ; Polymorphism ; Atopic asthma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002510050037
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  • 7
    Electronic Resource
    Electronic Resource
    The impact of the CYP2D6 and CYP2C19 genotypes on venlafaxine pharmacokinetics in a Japanese population (2000)
    Springer
    European journal of clinical pharmacology 56 (2000), S. 175-180 
    Details
    ISSN: 1432-1041
    Keywords: Key words CYP2D6 ; CYP2C19 ; Polymorphism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objective: The cytochrome P 450 isozymes CYP2D6 and CYP2C19 exhibit genetic polymorphism in human, including a marked interethnic difference. As the functional status of the isozymes CYP2D6 and CYP2C19 have an impact on the pharmacokinetics of some antidepressants, we investigated whether the disposition of venlafaxine was affected by the CYP2D6 and CYP2C19 genotypes. Methods: Twenty-eight adult Japanese men in good health participated in this study. Genomic DNA was isolated from peripheral lymphocytes, and the CYP2D6 genotype was determined using polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) analysis and XbaI-RFLP analysis. Subjects were categorized into the following four groups: group 1 CYP2D6*10/*10; group 2 CYP2D6*1/*10 and *2/*10; group 3 CYP2D6*1/*1, *1/*2 and *2/*2; and group 4 the other genotypes. Two defective CYP2C19 alleles (CYP2C19*2 and CYP2C19*3) were identified by means of PCR-RFLP analysis. Venlafaxine was administered orally following an overnight fast. Plasma concentrations of venlafaxine and O-desmethylvenlafaxine were monitored using high-performance liquid chromatography up to 24 h. Results: The peak plasma concentration and values of area under the concentration–time curve up to 24 h for venlafaxine were 298% and 453% higher for group 1 than group 3, and 91% and 120% higher for group 2 than for group 3, respectively. The homozygote for two defective alleles of CYP2C19 showed a higher concentration of venlafaxine within group 1 and group 2. Conclusion: The CYP2D6*10 allele and two CYP2C19 defective alleles, common in an Asian population, are the most likely genetic factors to use in determining interindividual differences in the pharmacokinetics of venlafaxine, although the results with respect to CYP2C19 are preliminary because of the few subjects used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002280050737
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  • 8
    Electronic Resource
    Electronic Resource
    The role of electrostatic forces in pollination (2000)
    Springer
    Plant systematics and evolution 222 (2000), S. 133-142 
    Details
    ISSN: 1615-6110
    Keywords: Electric charges ; electrodeposition ; electrostatic pollination ; electrostatic powder coating ; flower morphology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper reviews research on the role of electrostatic forces in pollination, both in natural and in agricultural systems. Researchers from various fields of biological studies have reported phenomena which they related to electrostatic forces. The theory of electrostatically mediated pollen transfer between insect pollinators and the flowers they visit is described, including recent studies which confirmed that the accumulated charges on airborne honey bees are sufficient for non-contact pollen detachment by electrostatic forces (i.e., electrostatic pollination). The most important morphological features in flower adaptiveness to electrostatic pollination were determined by means of two theoretical models of a flower exposed to an approaching charged cloud of pollen; they are style length and flower opening. Supplementary pollination by using electrostatic techniques is reported, and its possible importance in modern agriculture is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984099
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  • 9
    Electronic Resource
    Electronic Resource
    A Method of Determining the Thermophysical Properties and Calorific Intensity of the Organ or Tissue of a Living Body (2000)
    Springer
    International journal of thermophysics 21 (2000), S. 207-215 
    Details
    ISSN: 1572-9567
    Keywords: calorific intensity ; hot probe ; organ or tissue of a living body ; specific heat ; thermal conductivity ; thermal diffusivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new method was developed to determine simultaneously the thermal conductivity, thermal diffusivity, specific heat, and calorific intensity of the organ or tissue of a living body either in vivo or in vitro with a thin hot probe. By using the method, the thermophysical properties and calorific intensities of a human palm and in vivo liver and a kidney, heart, brain, and foreleg and hindleg muscles of an anesthetized canine were measured. It is concluded that there are no significant differences in the thermophysical properties of organ or tissue of a living body either in vivo or in vitro. The measured thermophysical properties are in good agreement with those reported in the literature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006669207551
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  • 10
    Electronic Resource
    Electronic Resource
    Measurement of the Thermal Diffusivity of Metallic Foils and Films by the Photoacoustic Method1 (2000)
    Springer
    International journal of thermophysics 21 (2000), S. 513-524 
    Details
    ISSN: 1572-9567
    Keywords: metal ; microscopic structure ; phase lag ; photoacoustic effect ; thermal diffusivity ; thin layer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal diffusivities of four kinds of metallic foils from 20 to 200μμm in thickness were measured by a photoacoustic method on the basis of the Rosencwaig and Gersho theory. The measured data for continuous foils of uniform microscopic structure almost agreed with the literature values. Measurements were also carried out on two kinds of metallic thin films with of 10μμm thickness produced by sputtering. The difference in thermal diffusivity between the foils and the sputtered films depended on the uniformity of the microscopic structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006656218049
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