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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 44 (1972), S. 1688-1690 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The reliability of in vitro proton nuclear magnetic resonance (NMR) spectroscopy to specifically measure the water content of rehydrated human stratum corneum samples was assessed by comparison with the previously validated thermal desorption-mass spectrometry technique. The interest of proton NMR is that it can determine, in the same sample, both the amount of total water by recording the spectra at ambient temperature, and that of bound water (non-freezing water) by recording the spectra below 0°C. Provided that enough samples of stratum corneum are analysed to average out the observed and well-known sample-to-sample variation, proton NMR may be of value in the evaluation of hygroscopic properties of raw materials for moisturizer formulations.〈section xml:id="abs1-1"〉〈title type="main"〉RésuméL'aptitude de la résonance magnétique nucléaire (RMN) du proton à déterminer le contenu en eau du stratum corneum in vitro a étéétablie en comparant la quantité d'eau présente dans divers échantillons provenant d'une même personne mesurée par cette technique avec celle mesurée par la technique déjà validée de désorption thermique couplée à la spectrométrie de masse. La RMN du proton est la seule méthode qui permette de mesurer dans un même échantillon à la fois sa teneur en eau totale en enregistrant le spectre à température ambiante, et sa teneur en `eau liée' (i.e. en eau 'non-gelée') en enregistrant le spectre à une température inférieure à 0°C. A condition d'analyser un nombre suffisant d'échantillons de stratum corneum pour moyenner la variation importante observée et bien connue entre les échantillons, la RMN du proton pourra êtra utilisée pour déterminer les propriétes hygroscopiques de composés pouvant entrer dans la composition de formulations hydratantes. © Rapid Science Ltd. 1998
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 62 (1996), S. 527-532 
    ISSN: 1432-0649
    Keywords: 29.25Bx ; 42.55.Gp
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Due to the growing demand for high-current and long-duration electron-beam devices, laser electron sources were investigated in our laboratory. Experiments on electron-beam generation and propagation from aluminium and copper targets illuminated by XeCl (308 nm) and KrCl (222 nm) excimer lasers, were carried out under plasma ignition due to laser irradiation. This plasma supplied a spontaneous accelerating electric field of about 370 kV/m without an external accelerating voltage. By applying the modified one-dimensional Poisson equation, we computed the expected current and we also estimated the plasma concentration during the accelerating process. At 40 kV of accelerating voltage, an output current pulse of about 80 A/cm2 was detected from an Al target irradiated by the shorter wavelength laser.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0630
    Keywords: PACS: 81.15.Fg; 67.70; 81.05.Je
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. We have designed and built an ultra-high vacuum chamber which allows thin film deposition on large area (up to 100 mm diameter) flat substrates and on three-dimensional substrates (e.g. 100 mm long, 50 mm diameter cylinders) by the pulsed laser deposition and reactive pulsed laser deposition techniques. Heating of substrates during and after film deposition is possible using either resistive heaters or a lamp array. Metal (Cu) and metal nitride (TiN) and carbide (TiC) films were deposited on Si wafers (60 and 100 mm diameter), three-dimensional steel substrates (steel cylinders and screws), Teflon plates, and paper sheets.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0630
    Keywords: PACS: 81.15Fg; 81.40Cd; 68.35.Bs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The influence of substrate temperature on the composition and crystallinity of boron carbonitride (BCN) thin films deposited on (100) Si substrates by sequential pulsed laser deposition (PLD) has been investigated. A correlation between the target composition, the nitrogen pressure involved in the process, and the amount of B, C, and N elements (at  % ) in the deposited films is established from energy dispersive spectroscopy (EDS) analysis. Electron microscopy studies show that the films deposited on heated substrates are mainly amorphous. Fourier-transform infrared spectroscopy (FTIR) analysis confirms the BCN-compound formation: the peak of C–BN and the peaks from B–N–B bending vibrations and C–N σ-bond vibrations are present in the spectra. SEM studies show that the deposited films have a smooth surface, with no cracks and few droplets. Results were compared with those obtained on films deposited at room temperature under similar experimental conditions.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The asteroid 153 Hilda was studied by photometric, spectroscopic and polarimetric observations during the apparition in 1992. The rotation period was determined to 5.11 hours with a lightcurve amplitude of 0.05 magnitudes. From our spectrum we find 153 Hilda to be of taxonomic type P. The polarization value of -0.23 at a phase angle of 3.2 degrees seems normal for a P-type asteroid. Long term integrations of the orbit shows that it is stable over time intervals of several million years.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0630
    Keywords: PACS: 42.55.Gp; 68.55; 81.15.Fg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. Silicon-nitride films were deposited on silicon wafers by XeCl (308 nm) excimer-laser ablation of silicon in low-pressure (0.05 – 5 mbar) ammonia atmospheres. Series of 10 000 pulses at the repetition rate of 8 Hz were directed to the target surface. The fluence was set at about 5 J/cm2. Pulse duration was about 30 ns. The deposited films were characterized by different techniques (X-ray diffraction, X-ray photoelectron spectroscopy, Auger electron spectroscopy, Rutherford backscattering spectrometry, scanning electron microscopy, profilometry). Silicon-nitride films with thickness close to 1 µm were obtained under specific experimental conditions.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0630
    Keywords: 42.55.Gp ; 68.55 ; 81.15.Fg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Silicon-nitride films were deposited on silicon waters by XeCl (308 nm) excimer-laser ablation of silicon in low-pressure (0.05–5 mbar) ammonia atmospheres. Series of 10 000 pulses at the repetition rate of 8 Hz were directed to the target surface. The fluence was set at about 5 J/cm2. Pulse duration was about 30 ns. The deposited films were characterized by different techniques (X-ray diffraction, X-ray photoelectron spectroscopy, Auger electron spectroscopy, Rutherford backscattering spectrometry, scanning electron microscopy, profilometry). Silicon-nitride films with thickness close to 1 μm were obtained under specific experimental conditions.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 158 (1999), S. 312-314 
    ISSN: 1432-1076
    Keywords: Key words Newborn ; Infant ; Suppurative parotitis ; Sialadenitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Suppurative parotitis is uncommon in newborns. During a 9-year study period, five cases of neonatal suppurative parotitis were detected in 3,624 hospital admissions. The relative risk of developing neonatal suppurative parotitis in admitted infants was 5.52 (0.62–49.35). Staphylococcus aureus was the causative organism most commonly detected in the hospital-acquired cases. Antimicrobial therapy was effective in all cases; surgery was not required. Conclusion Although neonatal suppurative parotitis is now uncommon in the newborn, it cannot be considered a “vanishing disease”.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 154 (1995), S. 81-81 
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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