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  • 1
    Electronic Resource
    Electronic Resource
    Studies of nuclear second moments for pre-equilibrium nuclear reaction theories — Extension to finite-range residual interaction (1988)
    Springer
    The European physical journal 330 (1988), S. 265-275 
    Details
    ISSN: 1434-601X
    Keywords: 24.60.Dr ; 23.40.Hc ; 21.10.Ma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Study of the nuclear second moments, important inputs to pre-equilibrium reaction theories, is extended to residual interactions of finite range. The interactions are assumed to have general spin and isospin dependence. The second moments are found to be always positive definite for commonly used values of the interaction parameters. They seem to support the strong coupling limit of the pre-equilibrium reaction theory by Nishioka et al. [1], which would imply the modification of the phenomenological model used in analyzing experimental data. As an application of the second moments, it is also investigated how the nuclear level densities change with the parameter values of the residual interaction. The results show the important role of the residual interaction especially in the low energy region, which may greatly improve the agreement with experimental data at thermal neutron resonances.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294869
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  • 2
    Electronic Resource
    Electronic Resource
    Average partial level density based on the random matrix model. Inclusion of realistic one-body spectrum and effect of particle escape (1989)
    Springer
    The European physical journal 333 (1989), S. 141-148 
    Details
    ISSN: 1434-601X
    Keywords: 24.60.Dr ; 23.40.Hc ; 21.10.Ma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The effect of the realistic one-body spectrum is included in calculating the average partial level density, which has been so far obtained assuming degenerate one-body spectrum and GDE for the residual interaction. We show that such partial level densities are obtained by solving the extended saddle point equations which need inputs of the realistic one-body spectrum as well as the second moment of the ensemble. It is seen that the average partial level density is expressed in a convolution form of the partial level density for realistic one-body spectrum with the distribution which describes the effect by the random residual interaction. Calculations numerically performed show the improvement over the previous results. The effect of particle escape on the level density is also investigated and turns out to be practically negligible in precompound reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01565144
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  • 3
    Electronic Resource
    Electronic Resource
    Exciton level densities with spin and parity based on random matrix model (1991)
    Springer
    The European physical journal 339 (1991), S. 129-139 
    Details
    ISSN: 1434-601X
    Keywords: 24.60.Dr ; 23.40.Hc ; 21.10.Ma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Level densities for fixedJ π and the exciton number are evaluated for closed shell nuclei40Ca and208Pb. The single particle spectra and wave functions are generated by Woods-Saxon potentials. The effects of the residual interaction are taken into account statistically by the method of generating function and Grassmann integral. The matrix elements for the residual interaction are assumed to be random variables with Gaussian distributions whose second moments are calculated by using a zero range interaction. The second moments are evaluated for fixedJ π by ignoring the Pauli principle between active nucleons and the spectator. This approximation is shown numerically to be very good. The partial level densities are calculated using the second moments as well as independent particle model spectra. The resulting level densities spread over wider energy ranges, have a smoother energy dependence and are enhanced at low energies compared with the independent particle model densities, although the total level densities do not differ by much.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01282942
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  • 4
    Electronic Resource
    Electronic Resource
    Solid-state ethanol fermentation by means of inert gas circulation (1985)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 27 (1985), S. 1312-1319 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A new method for solid-state ethanol fermentation (the SSEF system) was experimented on for the ethanol production from solid starchy materials, where a packedbed-type fermentor was used. Both cultivation of Aspergillus saitoi and enrichment of a saccharifying enzyme were effective for hydrolysis of the starch. Ethanol production was set in by a form of parallel fermentation using a respiration-deficient mutant of Saccharomyces cerevisiae. Produced ethanol was simultaneously stripped by circulating inert gas and separated in a condenser. Average ethanol concentration in the condensate was over 200 g/L, and over 90% of produced ethanol was recovered from the packed bed during 15 or 16 days of stripping. The fermentation efficiency was about 80%, which was evaluated much higher than those of conventional solid-state fermentations. The residue had lesser volume and a higher solids content compared with the distillery wastewaters of conventional liquid-state fermentations. This means an advantage for the treatment and the effective conversion of the residue into fetilizers or animal feeds.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260270907
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  • 5
    Electronic Resource
    Electronic Resource
    Studies of nuclear second moments for pre-equilibrium nuclear reaction theories (1987)
    Springer
    The European physical journal 327 (1987), S. 421-430 
    Details
    ISSN: 1434-601X
    Keywords: 24.60.Dr ; 23.40.Hc ; 21.10.Ma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The nuclear second moments, important inputs to pre-equilibrium reaction theories, are evaluated by assuming a simple model. The positive definite nature of the second moments is examined, and the nuclear level densities are calculated using positive definite second moments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289568
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  • 6
    Electronic Resource
    Electronic Resource
    Falling coaxial cylinder viscometer for polymer solutions (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 20 (1976), S. 1467-1473 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A simple, inexpensive glass viscometer can be constructed to time the rate at which a rod falls into a liquid held in a concentric closed-end glass cylinder. This equipment can be used to measure absolute values of apparent viscosities of Newtonian and non-Newtonian fluids. Calibration is not required. The technique is an adaptation of a method used previously with polymer melts at elevated temperatures. The present article describes the modifications needed for lower-viscosity fluids, such as paints, and validates the flow analysis with results of study of a characterized Newtonian fluid.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1976.070200605
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  • 7
    Electronic Resource
    Electronic Resource
    Osteogenic cell cytotoxicity and biomechanical strength of the new ceramic Diopside (1997)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 37 (1997), S. 100-107 
    Details
    ISSN: 0021-9304
    Keywords: Diopside ; biocompatibility ; osteogenic cell (MC3T3-E1) ; biomechanical strength ; apatite wollastonite-containing glass-ceramic (AWGC) ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Diopside was prepared by sintering a powder compact composed of CaMgSi2O6 at 1573K for 2 h. In order to clarify the biocompatibility of Diopside, the cytotoxicity of Diopside against the osteogenic cell line MC3T3-E1 and the bone-Diopside interface strength were examined. On both the 14th and 21st days of incubation of MC3T3-E1 cells with Diopside, ALP activities were not significantly lower than those of the CTRL. TEM photographs of MC3T3-E1 on Diopside after 14 days of incubation showed active secretion of crystals from osteoblast-like cells. Scanning electron microscopic analysis showed that the cells on Diopside formed multiple cell layers similar to those on the CTRL both 14 and 21 days after incubation. These results showed that Diopside had no cytotoxic effect on MC3T3-E1. The pulling test showed that failure loads of Diopside were significantly lower than those of AWGC. Histologically, there was no fibrous tissue or foreign body reaction at the bone interface. SEM-EPMA showed that Diopside had attached to the bone via a calcium-phosphorus layer. SEM back-scattered electron imaging showed that the Diopside plate had degraded to a porous state 12 weeks after implantation. These findings indicate that Diopside is a biodegradable ceramic. © 1997 John Wiley & Sons, Inc. J Biomed Mater Res, 37, 100-107, 1997.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    The synthesis of dicarboxylie acids containing oxadiazole rings and polyamides derived from them (1967)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 100 (1967), S. 91-99 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Neue Dicarbonsäuren, die ein oder zwei 1,3,4-Oxadiazol-Ringe im Molekül enthalten, wurden durch Reaktion zwischen Orthoestern und Säurehydraziden gebildet. Diese Dicarbonsäuren haben die folgenden Strukturen: und R = Phenylen oder Alkylen und n = 1-4Die Polyamide von p-Xylylendiamin mit diesen Dicarbonsäuren wurden ebenfalls hergestellt. Diese Polymeren sind unlöslich in m-Kresol, aber löslich in konz. Schwefelsäure. Die Schmelzpunkte dieser Polyamide liegen über 350deg;C. Mit aliphatischen Polyamiden wurden Copolyamide mit hohen Molgewichten erhalten.
    Notes: Novel dicarboxylic acids containing one or two 1,3,4-oxadiazole rings in a molecule were synthesized by the reaction between orthoesters and acid hydrazides These dicarboxylic acids have the following structures: and where R represents a phenylene or an alkylene group and n = 1-4.The polyamides from p-xylylenediamine with these dicarboxylic acids were also prepared. The polymers are generally insoluble in m-cresol but soluble in conc. sulfuric acid. The melting points were estimated at above 350°C. Copolyamides of high molecular weights with aliphatic polyamides were obtained.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1967.021000111
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  • 9
    Electronic Resource
    Electronic Resource
    β-Turn preference of tetrapeptide sequences as analyzed by CD spectra of their Dnp-pNA derivatives (1981)
    New York : Wiley-Blackwell
    Biopolymers 20 (1981), S. 1921-1927 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The Dnp-pNA derivatives of more than 30 tetrapeptides were synthesized and subjected to CD measurements in MeOH. The CD spectra were analyzed on the basis of exciton chirality theory and were found to be useful for estimating β-turn preference of the parent tetrapeptides based on the following facts: (1) when a compound of the series takes the βturn conformation, a pair of strong CD bands with opposite sign are observed at 305 and 350 nm, and (2) when it is in a random or nonfolded conformation, no significant bands are observed at the wavelengths. The intensity of the 350-nm band reflects especially well the βturn preference. The CD spectra can be classified into two groups according to the sign of the band at 350 nm, and the groups seem to correspond to the type of βturn. By summarizing the results obtained, some generalizations concerning the sequence-conformation relationship are proposed.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1981.360200915
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  • 10
    Electronic Resource
    Electronic Resource
    Donor-acceptor interactions in polymeric systems. IV. Variation of stability constants as a function of the saturation fraction (1976)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 14 (1976), S. 653-659 
    Details
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1976.130141104
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