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  • 2005-2009  (2)
  • 2000-2004  (3)
  • 1985-1989  (5)
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Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    Deposition of a Si monolayer on sapphire using an ArF excimer laser for Si epitaxial growth (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 2087-2091 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Si monolayer deposition on sapphire substrates was investigated by in situ x-ray photoelectron spectroscopy (XPS). Si deposition was carried out using direct photolysis of Si2H6 by irradiation of 193 nm ArF excimer laser light (1–2 W/cm2 , 70 Hz) at room temperature in a high-vacuum chamber. At first, decomposed Si atoms bound strongly with O atoms on sapphire until the entire sapphire surface was covered, then SiSi bonds were formed. From the growth mode analysis of the early stage of Si deposition, it can be seen that the growth mode of the deposited layer is a layer-by-layer mode (the Frank–Van der Merwe-type growth). The thickness of the deposited Si layers can be controlled on an atomic scale. As these features are suitable for Si-on-sapphire (SOS) epitaxial growth with predeposited layers, SOS epitaxial growth was demonstrated and the SOS films were characterized by replica electron microscopy and fabricating a metal-oxide-semiconductor field-effect transistor.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.341717
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  • 2
    Digitale Medien
    Digitale Medien
    Theoretical study on the outer- and inner-valence ionization spectra of H2O, H2S and H2Se using the SAC-CI general-R method (2001)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 114 (2001), S. 8990-8999 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The outer- and inner-valence ionization spectra of the Group VI hydrides H2O, H2S and H2Se below the double-ionization threshold were studied by the SAC-CI (symmetry-adapted-cluster configuration-interaction) general-R method. The SAC-CI method quite accurately reproduced the experimental spectra of these hydrides and gave detailed characterizations of the shake-up states. Several unknown satellite peaks were predicted. The shake-up state which includes excitations to the Rydberg orbitals was found to be very important for describing the satellite peaks of these hydrides. A detailed inner-valence satellite spectrum of H2Se is theoretically proposed prior to any experimental observation. © 2001 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.1367372
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  • 3
    Digitale Medien
    Digitale Medien
    The current status of theory and practice on rail integrity in Japanese railways—rolling contact fatigue and corrugations (2003)
    PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. : Blackwell Science Ltd
    Fatigue & fracture of engineering materials & structures 26 (2003), S. 0 
    Details
    ISSN: 1460-2695
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Maschinenbau
    Notizen: The paper describes the Japanese understanding and practice with regard to wheel rail interface problems and their management. Rolling contact fatigue, especially squat defects, grinding, corrugations and lubrication, have been considered. The understanding has been developed through a combination of theoretical modeling, laboratory-based experiments and field trials. Measures have been introduced to mitigate the detrimental effects of these problems and are resulting in benefits to the Japanese railway companies. However, more work is required to better understand wheel rail interface problems and to provide effective solutions.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1460-2695.2003.00708.x
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  • 4
    Digitale Medien
    Digitale Medien
    Exotic involutions on symplectic 4-manifolds and G-monopole invariants (2000)
    Springer
    Geometric and functional analysis 10 (2000), S. 1477-1486 
    Details
    ISSN: 1420-8970
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Abstract. Using the G-monopole invariant, we shall show that any anti-holomorphic involution on a closed symplectic 4-manifold is not diffeomorphic to any holomorphic involution. As a corollary, we shall give a way to construct exotic smooth structures.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/PL00001657
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  • 5
    Digitale Medien
    Digitale Medien
    Effects of amino acids on pancreatic polypeptide before and after vagotomy in the dog (1986)
    Springer
    Diabetologia 29 (1986), S. 262-264 
    Details
    ISSN: 1432-0428
    Schlagwort(e): Pancreatic polypeptide ; vagotomy ; amino acids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary We have previously indicated a marked influence of the vagus nerve on postprandial pancreatic polypeptide secretion. The present study was designed to determine whether the vagus nerve also plays a role in the regulation of pancreatic polypeptide secretion by absorbed nutrients. The pancreatic polypeptide responses to 17 intravenously administered amino acids, as well as arginine and glucose, were measured and compared with those 1 year after truncal vagotomy in conscious dogs. In response to the infusion of a mixture of amino acids (20 g during 60 min), plasma pancreatic polypeptide concentrations decreased in normal dogs. The effect was, however, completely reversed by vagotomy, with a significant pancreatic polypeptide release being observed (p 〈 0.05). Arginine (5 g during 60 min) also showed a similar, although not statistically significant, effect. After intravenous bolus-injection of glucose (0.5 g/kg body weight), a transient decrease of pancreatic polypeptide secretion was found; vagotomy abolished this response. These results suggest that the vagus nerve may have a suppressive role in the process of pancreatic polypeptide secretion induced by intravenous amino acid(s) and glucose.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00454888
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  • 6
    Digitale Medien
    Digitale Medien
    Calcium homeostasis in premature infants and treatment of early hypocalcaemia by 1,25-dihydroxycholecalciferol (1987)
    Springer
    European journal of pediatrics 146 (1987), S. 383-386 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Early neonatal hypocalcaemia ; 1,25-dehydroxycholecalciferol
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We studied calcium homeostasis and the serum calcium response to oral 1,25-dihydroxycholecalciferol [1,25 (OH)2D3] at a low pharmacological dosage of 0.1 μg/kg daily in 14 early hypocalcaemic asymptomatic neonates. Seven hypocalcaemic neonates were not treated. In hypocalcaemic neonates serum PTH levels were normal, the urinary C-AMP response after PTH stimulation was poor and plasma 1,25 (OH)2D3 was low. Treatment with 1,25(OH)2D3 resulted in a rapid increase of serum calcium. The increase was more rapid in neonates treated with 1,25(OH)2D3 than in untreated subjects. A similar result was obtained in one of a pair of identical twins. These results suggest that a low dose of 1,25(OH)2D3 is effective in treating neonatal hypocalcaemia. However, the response was delayed for 48 h. The reason for this delay is not clear.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00444943
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  • 7
    Digitale Medien
    Digitale Medien
    Interaction Effects of Stress Intensity Factors in Parallel Cracks under Transitional Thermal-Loads (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Applied mechanics and materials Vol. 3-4 (Aug. 2006), p. 279-286 
    Details
    ISSN: 1662-7482
    Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Thema: Maschinenbau
    Materialart: Digitale Medien
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMM.3-4.279.pdf
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  • 8
    Digitale Medien
    Digitale Medien
    Characterization of Super-Precision Microgear Made of Ni-Based Metallic Glass (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Journal of metastable and nanocrystalline materials Vol. 24-25 (Sept. 2005), p. 543-546 
    Details
    ISSN: 1422-6375
    Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Thema: Maschinenbau
    Materialart: Digitale Medien
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/43/transtech_doi~10.4028%252Fwww.scientific.net%252FJMNM.24-25.543.pdf
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  • 9
    Digitale Medien
    Digitale Medien
    Characterization of reference strains of Newcastle disease virus (NDV) and NDV-like isolates by monoclonal antibodies to HN subunits (1985)
    Springer
    Archives of virology 85 (1985), S. 109-121 
    Details
    ISSN: 1432-8798
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The hemagglutinin-neuraminidase (HN) subunits of NDV and NDV-like isolates were analyzed antigenically by monoclonal antibodies to the HN of Miyadera and Taka viruses. In immuno-double-diffusion (IDD) tests, all NDVs examined gave clear lines of precipitation with some of the potent monoclonal antibodies, but it was difficult to determine with certainty the immunological properties of HN subunits due to a rare disagreement with the results obtained in other immunological tests. Monoclonal antibodies used in the tests were found to show different immunological reactivities with the viruses. Monoclonal antibodies belonging to the 1st group (1/29) inhibited the hemagglutinating (HA) activity of all strains but not the neuraminidase (NA) activity. The second monoclonal antibody (5/205) inhibited both the HA and NA activities of the restrictive NDV strains, indicating antigenic changes in HN molecules. However, the inhibitory activity of this monoclone to neuraminidase appeared to be greatly diminished when neuraminyl lactose was used as substrate. Although the 3rd type of monoclonal antibody (5/220) showed HI activity against several strains, this antibody did not inhibit NA activity of any viruses. The remaining monoclone to the HN of Taka virus inhibited the HA activity of all reference strains of NDV and many NDV-like isolates but did not affect NA activity. Two inhibitory activities of four monoclonal antibodies against different viruses, HI and hemolysis-inhibition, were not always consistent with inhibition of virus growth. HI and NI tests with the above four monoclonal antibodies showed that the strains tested fell into five antigenic groups according to their reaction patterns with mouse hybridoma antibodies.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01317010
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  • 10
    Digitale Medien
    Digitale Medien
    Antigenic characterization of hemagglutinin-neuraminidase (HN) protein of avian paramyxoviruses by specific antisera to isolated HN subunits (1985)
    Springer
    Archives of virology 83 (1985), S. 229-239 
    Details
    ISSN: 1432-8798
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Specific antisera for the isolated HN proteins of eight reference strains of avian paramyxoviruses could be prepared in guinea pigs by intraperitoneal injection of guinea pig red blood cells (GRBC) coated with purified HN proteins. In the hemagglutination inhibition (HI) tests, all reference strains reacted strongly with each homologous antiserum to the isolated HN showing that a low level of cross-reactivity among the reference strains was greatly diminished by using specific antisera. Immuno-double-diffusion (IDD) tests showed that all antisera except those to turkey/Wisconsin/68 and duck/Hong Kong/D3/75 gave single well-defined lines only with the homologous viruses. The remaining two antisera developed a single definite precipitin line together with weak lines with homologous virus. Two isolates in Japan were clearly identified in HI and IDD tests with specific antisera to the HN subunits of the reference strains suggesting that the antisera were useful for identification of avian paramyxovirus isolates. Two isolates in Japan, H-70 from a munia-bird and Y-7 from a duck were found to have HN proteins related closely to those of finch/N. Ireland/Bangor/73 and duck/Hong Kong/199/77, respectively.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01309919
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