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  • 1
    Electronic Resource
    Electronic Resource
    Microwaves in gyromagnetic waveguides (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 535-541 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Properties of transverse electric waves in the microwave frequency range on a plane interface between a nonlinear antiferromagnet and a linear ferromagnet are investigated. It is revealed that there are two different field distributions and powers. An exact analytical dispersion relation is obtained. On the basis of the dispersion relation, we have investigated the properties of surface waves in this waveguide and, theoretically, found that there exist passbands and stop bands, which can be controlled by varying the power in the nonlinear gyromagnetic waveguides. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1323748
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  • 2
    Electronic Resource
    Electronic Resource
    Nonlinear behavior of magnetic surface waves on the interface between ferromagnet and antiferromagnet (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 1908-1913 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In this article the nonlinear frequency characteristics of the transverse magnetic surface waves at microwave frequencies on the interface between a ferromagnet and an antiferromagnet have been studied. The results show that the magnetic surface waves have passband(s) and stopband(s), which are interchangeable through the variation of the wave power. It is shown that the nonlinear surface waves excited on the interface can be backward surface waves with group velocities opposite to their phase velocities in direction. The passband widths of the forward surface waves are about five times larger than those of the backward surface waves in the situation. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.372111
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  • 3
    Electronic Resource
    Electronic Resource
    Estimation of parameters in a two-parameter exponential distribution using ranked set sample (1994)
    Springer
    Annals of the Institute of Statistical Mathematics 46 (1994), S. 723-736 
    Details
    ISSN: 1572-9052
    Keywords: Best linear unbiased estimator ; exponential distribution ; order statistics ; ranked set sample ; uniformly minimum variance unbiased estimator
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In situations where the experimental or sampling units in a study can be easily ranked than quantified, McIntyre (1952,Aust. J. Agric. Res.,3, 385–390) proposed that the mean ofn units based on aranked set sample (RSS) be used to estimate the population mean, and observed that it provides an unbiased estimator with a smaller variance compared to a simple random sample (SRS) of the same sizen. McIntyre's concept ofRSS is essentially nonparametric in nature in that the underlying population distribution is assumed to be completely unknown. In this paper we further explore the concept ofRSS when the population is partially known and the parameter of interest is not necessarily the mean. To be specific, we address the problem of estimation of the parameters of a two-parameter exponential distribution. It turns out that the use ofRSS and its suitable modifications results in much improved estimators compared to the use of aSRS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00773478
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  • 4
    Electronic Resource
    Electronic Resource
    The Beauty of General Relativity (1997)
    Springer
    Foundations of science 2 (1997), S. 61-64 
    Details
    ISSN: 1572-8471
    Keywords: General Relativity ; Cosmology ; Black holes ; Nonlinearity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Natural Sciences in General
    Notes: Abstract The author proposes to add another dichotomy to the list of essential tensions proposed by Professor Duda, namely beauty and ugliness. Physicists believe that only beautiful theories describe the world correctly, and that General Relativity is one of the most beautiful physical theories. The author explains why physicists regard this theory as beautiful.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009623126300
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  • 5
    Electronic Resource
    Electronic Resource
    Study on Non-Halogen Flame-Retarded HIPS with High Strength HIPS (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 47-50 (June 2008), p. 1245-1249 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: PPO was a better intensifier and charred material for High-impact polystyrene (HIPS), itcould make HIPS achieve UL94V-0 with APP, MC, RDP. Especially, RDP not only improved theflame-retarded property but also controlled the hole producing, and had the best consistent withmatrix which could improve the mechanical properties. SBS and SEBS were better consistent withmatrix, especially SEBS was tiny granule, which could be dispersed in matrix easily. The propertiesof SEBS toughened the non-halogen flame-retarded HIPS was followed: tensile strength: 18.83MPa;izod notch impact strength: 15.7kJ/m2; UL94V-0
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.1245.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Sulfate and Frost Resistance of Mass Hydraulic Concrete (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 302-303 (Jan. 2006), p. 191-196 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper discusses the sulfate resistance and frost of mass hydraulic concrete which containing fly ash, superplasticizer and a novel MgO-bearing expansive agent (HNM), at same time, the mechanisms and processes of sulfate attack on it have been proposed. Results showed that using a water/binder ratio of 0.48 in RCC containing 50 % fly ash and 8 % HNM a durability factor of over D300 can be achieved and sulfate resistance may be improved slightly
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/50/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.302-303.191.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Modes of variability of global sea surface temperature, free atmosphere temperature and oceanic surface energy flux (1994)
    Springer
    Climate dynamics 10 (1994), S. 377-393 
    Details
    ISSN: 1432-0894
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Monthly mean sea surface temperature (SST), free air temperature from satellite microwave sounding units (MSU) and oceanic surface energy fluxes are subjected to empirical orthogonal function (EOF) analysis for a common decade to investigate the physical relationships involved. The first seasonal modes of surface solar energy flux and SST show similar inter-hemispheric patterns with an annual cycle. Solar flux appears to control this pattern of SST. The first seasonal mode of MSU is similar with, additionally, land-sea differences; MSU is apparently partly controlled by absorption of solar near-infrared radiation and partly by sensible heat from the land surface. The second and third seasonal eigenvector of SST and solar flux exhibit semi-annual oscillations associated with a pattern of cloudiness in the subtropics accompanying the translation of the Hadley cell rising motion between the hemispheres. The second seasonal mode of MSU is dominated by an El Niño signal. The first nonseasonal EOFs of SST and solar flux exhibit El Niño characteristics with the solar pattern being governed by west-to-east translation of a Walker cell type pattern. The first non-seasonal EOF of MSU shows a tropical strip pattern for the El Niño mode, which is well correlated with the latent heat fluxes in the tropical east Pacific but not in the tropical west Pacific. Two possible explanations are: an increase in subsidence throughout the tropical strip driven by extra evaporation in the tropical east Pacific and consequent additional latent heat liberation; a decrease of meridional heat flux out of the tropics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219477
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  • 8
    Electronic Resource
    Electronic Resource
    Estimation of the location parameter of a Cauchy distribution using a ranked set sample (1995)
    Springer
    Metrika 42 (1995), S. 234-235 
    Details
    ISSN: 1435-926X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01894304
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  • 9
    Electronic Resource
    Electronic Resource
    Self-similar cosmological models (1981)
    Springer
    General relativity and gravitation 13 (1981), S. 625-647 
    Details
    ISSN: 1572-9532
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The kinematics and dynamics of self-similar cosmological models are discussed. The degrees of freedom of the solutions of Einstein's equations for different types of models are listed. The relation between kinematic quantities and the classifications of the self-similarity group is examined. All dust local rotational symmetry models have been found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00759407
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  • 10
    Electronic Resource
    Electronic Resource
    LETTER: Pair Creation of Schwarzschild-anti-de Sitter Black Holes (1999)
    Springer
    General relativity and gravitation 31 (1999), S. 223-231 
    Details
    ISSN: 1572-9532
    Keywords: QUANTUM COSMOLOGY ; CONSTRAINED GRAVITATIONAL INSTANTON ; BLACK HOLE CREATION
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract For a spherically symmetric vacuum model with anegative cosmological constant, a complex constrainedinstanton is considered as the seed for the quantum paircreation of Schwarzschild-anti-de Sitter black holes. The relative creation probability isfound to be the exponential of the negative of the blackhole entropy. The black hole entropy is known to be onequarter of the black hole horizon area. In the absence of a general noboundary proposal foropen creation, the constrained instanton approach isused in treating both the open and closed pair creationsof black holes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018896211493
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