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  • Articles  (281)
  • American Physical Society  (170)
  • Springer  (111)
  • 2015-2019  (209)
  • 2005-2009  (53)
  • 2000-2004  (14)
  • 1980-1984  (5)
  • Physics  (281)
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  • Articles  (281)
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  • 1
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    The Beni Haoua, Algeria, Mw 4.9 earthquake: source parameters, engineering, and seismotectonic implications (2015)
    Springer
    Details
    Publication Date: 2015-12-30
    Description: A moderate Mw 4.9 earthquake struck the Beni Haoua (Algeria) coastal area on April 25, 2012. The mainshock was largely recorded by the accelerograph network of the Centre National de Recherche Appliquée en Génie Parasismique (CGS). The same day the earthquake occurred, eight mobile short period stations were deployed through the epicentral area. In this study, we use accelerogram and seismogram data recorded by these two networks. We combined the focal mechanism built from the first motion of P waves and from waveform inversion, and the distribution of aftershocks to well constrain the source parameters. The mainshock is located with a shallow focal depth, ∼9 km, and the focal mechanism shows a nearly pure left lateral strike slip motion, with total seismic moment of 2.8 × 1016 N.m (Mw = 4.9). The aftershocks mainly cluster on a narrow NS strip, starting at the coast up to 3–4 km inland. This cluster, almost vertical, is concentrated between 6 and 10 km depth. The second part of this work concerns the damage distribution and estimated intensity in the epicentral area. The damage distribution is discussed in connection with the observed maximum strong motion. The acceleration response spectrum with 5 % damping of the mainshock and aftershocks give the maximum amplitude in high frequency which directly affects the performance of the high-frequency structures. Finally, we tie this earthquake with the seismotectonic of the region, leading to conclude that it occurred on a N–S transform zone between two major compressional fault zones oriented NE–SW. © 2015, Springer Science+Business Media Dordrecht.
    Print ISSN: 1383-4649
    Electronic ISSN: 1573-157X
    Topics: Geosciences , Physics
    Published by Springer
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  • 2
    Electronic Resource
    Electronic Resource
    Ternary systems of two interacting copolymers and a solvent (1983)
    Springer
    Polymer bulletin 9 (1983), S. 313-320 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Closed loop diagrams were obtained with ternary systems containing two interacting copolymers (styrene-4-vinylpyridine / styrene-methacrylic acid or methyl methacrylate-4-vinylpyridine / methyl methacrylate-methacrylic acid) and a solvent (dioxane or chloroform). Viscosimetric interaction parameters were determined in both solvents. Higher interactions in chloroform than in dioxane were evidenced from greater positive Δ b23. A single glass transition temperature obtained with the pair of copolymers of styrene-methacrylic acid / butyl methacrylate-4-vinylpyridine confirmed the compatibility of these copolymers in the solid state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00262724
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  • 3
    Electronic Resource
    Electronic Resource
    Association between acidic and basic copolymers by low angle laser light scattering photometry (1982)
    Springer
    Polymer bulletin 7 (1982), S. 607-614 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Measurements of both apparent molecular weight and second virial coefficient of solutions of styrene-4-vinylpyridine copolymer in ethyl benzoate containing varying concentrations of methyl methacrylate-methacrylic acid copolymer isorefractive with ethyl benzoate were carried out by low angle laser light scattering. The apparent molecular weight depended very little on the acidic copolymer concentration. The second virial coefficient first decreased rapidly, then increased and finally tends to level off as the acidic copolymer concentration was raised. Great association is observed when the visible polymer is in excess.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00256094
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  • 4
    Electronic Resource
    Electronic Resource
    Radical polymerization and copolymerization behavior of 1-cyanoethanoyl-4-acryloylthiosemicarbzide (2000)
    Springer
    Journal of polymer research 7 (2000), S. 229-235 
    Details
    ISSN: 1572-8935
    Keywords: Functional monomers ; Polymerization ; Copolymerization ; Kinetic studies ; Reactivity ratios
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract 1-Cyanoethanoyl-4-acryloylthiosemicarbazide (CEATS) was synthesized for the first time as a new chelating monomer. Its structure was confirmed by both elemental and spectral analyses. Radical polymerization and copolymerization of CEATS was been carried out in dimethylformamide (DMF) in the presence of azobisisobutyronitrile (AIBN) as an initiator. Kinetic studies for the polymerization behavior of CEATS were performed. The complex formation of the CEATS monomer and polymer (PCEATS) with Cu II cation was investigated and its stability constant determined. The rate of copolymerization of CEATS with some conventional monomers, namely vinyl acetate, methyl methacrylate and acrylonitrile, was measured as a function of the mole fraction of the monomers. The reactivity ratios (r1, r2) for the various copolymer systems investigated together with the Q and e values of the CEATS monomer were determined. Moreover, the thermal gravimetric analysis of the prepared polymers and their copolymers with acrylonitrile were also studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s10965-006-0124-x
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  • 5
    Electronic Resource
    Electronic Resource
    First-principles electronic structure of rare-earth arsenides (2001)
    Springer
    The European physical journal 23 (2001), S. 191-199 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 71.20.-b Electron density of states and band structure of crystalline solids – 71.20.Eh Rare earth metals and alloys
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The electronic properties of rare-earth arsenides have been calculated from first principles. In the calculations we have treated the rare-earth f electrons both as core-like and as valence-like electrons. We consider the changes in the energy bands and in the density of states near the Fermi level which are found to be relevant, except for the case of LuAs, and discuss this in relation with the role played from the rare-earth 5d derived states. Moreover we show that the rare-earth 5d related bands are particularly sensitive to the variation of the lattice constant; change in the lattice constant of less than 1% leads to a different behaviour with respect to the crossing of the rare-earth 5d derived bands and the As 4p derived bands along the Δ-direction. This point is discussed in connection with the possibility of having a semimetal-semiconductor transition in the rare-earth arsenides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510170068
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  • 6
    Electronic Resource
    Electronic Resource
    Second Eigenvalue of Schrödinger Operators¶and Mean Curvature (2000)
    Springer
    Communications in mathematical physics 208 (2000), S. 761-770 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract: Let $M$ be a compact immersed submanifold of the Euclidean space, the hyperbolic space or the standard sphere. For any continuous potential q on M, we give a sharp upper bound for the second eigenvalue of the operator −Δ+q in terms of the total mean curvature of M and the mean value of q. Moreover, we analyze the case where this bound is achieved. As a consequence of this result we obtain an alternative proof for the Alikakos–Fusco conjecture concerning the stability of the interface in the Allen–Cahn reaction diffusion model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002200050009
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  • 7
    Electronic Resource
    Electronic Resource
    Numerical Study Of The Impact Of Coherent Structures On Vertical Transfers In The Atmospheric Boundary Layer (2000)
    Springer
    Boundary layer meteorology 97 (2000), S. 361-383 
    Details
    ISSN: 1573-1472
    Keywords: Coherent structures ; Numerical modelling ; Turbulence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract In two preceding papers, coherent structures of theatmospheric boundary layer (ABL), such as rollvortices or cells, were investigated through radar andaircraft observations collected during the TRAC-93(Turbulence Radar Aircraft Cells) experiment held inFrance in June 1993. The analysis of this experimentaldata set provided information on the spatialcharacteristics of these organisations (length scale,orientation, type ... ), their temporal and verticalevolution, and their relation with the dynamic andthermodynamic conditions of the ABL. For the thirdpaper in this series, a large eddy simulation model is used to examine the impact of thecoherent structures on the ABL vertical fluxes. Theanalysis of the simulated horizontal fields is madewith two-dimensional auto and cross-correlationsapplied on different pertinent ABL variables. Theresults emphasise a directional anisotropy of theseorganised fields throughout the ABL, much morepronounced in the heat flux fields, not only at thelength scale of organisations but also at theturbulence scales. This finding has an importantconsequence for traditional ABL flux measurementsbased on the hypothesis of isotropic and homogeneousturbulence. It can explain part of the underestimationof the surface fluxes often mentioned in theliterature. This approach makes it possible tomodify the concept of diffusion time (in chemicalmodelling) and could also lead to revised ABLparameterisations in Range Scale models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002641728075
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  • 8
    Electronic Resource
    Electronic Resource
    Optoelectronic properties of zinc blende ZnSSe and ZnBeTe alloys (2005)
    Springer
    The European physical journal 43 (2005), S. 3-9 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The compositional dependence of the electronic band structure has been computed for zinc blende ZnSxSe1-x and Zn1-xBexTe alloys with composition x ranging from 0 to 1. The empirical pseudo potential method with the virtual crystal approximation have been used. A particlar attention has been paid to the effect of alloy disorder on the electronic properties of the II-VI studied compounds. For this purpose, the compositional disorder is added to the virtual crystal approximation as an effective potential. Such correction approximates significantly our calculated values of the band gap bowing parameters to experimental ones. The ZnSxSe1-x gap energy shows a nonlinear behavior with strong bowing for low compositions of sulfur. The Zn1-xBexTe compound, as it is known, can be direct or indirect semiconductor depending on its beryllium composition x. The electron effective mass and the refractive index have been investigated as well. Polynomial approximations are obtained for both the energy gap and the effective mass as functions of alloy composition at Γ and X valleys.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2005-00021-y
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  • 9
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    Semi-inclusive studies of semileptonicBsdecays at Belle (2015)
    American Physical Society
    Details
    Publication Date: 2015-10-22
    Print ISSN: 1550-7998
    Electronic ISSN: 1550-2368
    Topics: Physics
    Published by American Physical Society
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  • 10
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    Measurement ofe+e−→γχcJvia initial state radiation at Belle (2015)
    American Physical Society
    Details
    Publication Date: 2015-07-20
    Print ISSN: 1550-7998
    Electronic ISSN: 1550-2368
    Topics: Physics
    Published by American Physical Society
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