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  • 1
    Electronic Resource
    Electronic Resource
    Amplitude squeezed and number-phase intelligent states via coherent state superposition
    Amsterdam : Elsevier
    Physics Letters A 160 (1991), S. 506-510 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(91)91057-K
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  • 2
    Electronic Resource
    Electronic Resource
    A combined study of macroseismic data and focal mechanisms applied to the West-Bohemian earthquake, Czechoslovakia (1990)
    Springer
    Pure and applied geophysics 133 (1990), S. 53-71 
    Details
    ISSN: 1420-9136
    Keywords: Macroseismic data ; synthetic isoseismals ; focal mechanism ; earthquake swarm ; circular-source model ; local geological conditions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The main shock of the West-Bohemian earthquake swarm, Czechoslovakia, (magnitudem=4.5, depthh=10 km) exhibits an irregular areal distribution of macroseismic intensities 6° to 7° MSK-64. Four lobes of the 6° isoseismal are found and the maximum observed intensity is located at a distance of 8 km from the instrumentally determined epicentre. This distribution can be explained by the energy flux of the directS wave generated by a circular source, the hypocentral location and focal mechanism of which are taken from independent instrumental studies. The theoretical intensity, which is assumed to be logarithmically proportional to the integrated squared ground-motion velocity (i.e.,I=const+log ∫v 2 (t)dt), fits the observed intensity with an overall root-mean-square error less than 0.5°. It is important that the present intensity data can also be equally well explained by the isotropic source. The fit was attained by means of a horizontally layered model though large fault zones and an extended sedimentary basin suggest a significant lateral heterogeneity of the epicentral region. The results encourage a broader application of the simple modelling technique used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876702
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  • 3
    Electronic Resource
    Electronic Resource
    Correction of the level of magnification of the SVK vertical seismograph at the seismic station of průhonice (PRU) (1981)
    Springer
    Studia geophysica et geodaetica 25 (1981), S. 99-103 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary Drawing on the results of new measurements of the mechanical parameters of the SVK seismometer No. 5055, the level of magnification of the vertical seismograph used in the past, has been corrected. The amplitudes of the seismic waves from earthquakes in the period 1963–1978 have to be increased by 88% and the station correction for determining the magnitudes of earthquakes decreased by 0.274.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01613565
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  • 4
    Electronic Resource
    Electronic Resource
    Velocity-depth function ofP-waves in the region of the central bohemian massif (1974)
    Springer
    Studia geophysica et geodaetica 18 (1974), S. 390-393 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary By applying the Wiechert — Herglotz method the seismic wave velocity distribution with depth was determined in the upper part of the Earth's crust along the profile DSS VII in the Bohemian Massif, especially in the Central Bohemian Massif. The velocity-depth function is compared with the results of similar measurements in the field [2, 3], as well as with laboratory investigations [4].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01627194
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  • 5
    Electronic Resource
    Electronic Resource
    Wave pattern and maximum amplitude of short-periodP waves at epicentral distances between 9° and 25° (1975)
    Springer
    Studia geophysica et geodaetica 19 (1975), S. 134-140 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary The wave pattern and the maximum amplitude of short-period P waves was investigated at epicentral distances between 9° and 25° for a set of shallow earthquakes. It was found that the time of occurrence of the maximum ratio A/T in the P-wave group varied substantially in the distance range between 10° and 11°, as well as between 12° and 14°, this phenomenon being significant for the magnitude determination from short-period P waves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01635421
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  • 6
    Electronic Resource
    Electronic Resource
    Consequences of transducer inductance for seismograph calibration (1986)
    Springer
    Studia geophysica et geodaetica 30 (1986), S. 257-267 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Description / Table of Contents: Summary The magnification achieved with the standard sine-wave method using seismometers with the calibration and signal coils tightly wound on the same coil former can be erroneous at high frequencies due to the mutual inductance between both coils. An attempt was made to eliminate this influence from the calibration data. The application of theoretical equations was tested with a short-period digital seismograph.
    Notes: Резюме Сmaн¶rt;aрmнaя кaлuбрaцuя сеŭсмогрaфa nрu возбуж¶rt;енuu ¶rt;вuженuя сеŭсмомеmрaгaрмонuческuм mоком можеm быmь нa высокuх чaсmоmaх ощuбочнaя uз зa взauмноŭ uн¶rt;укmuвносmu меж¶rt;у сuгнaльноŭ u кaлuбрaцuонноŭ кamущкоŭ, еслu онu нaхо¶rt;яmся в неnосре¶rt;сmвенноŭ блuзосmu. Былa с¶rt;елaнa nоnыmкa коррекmuровamь кaлuбрaцuонные ¶rt;aнные. Прuмененuе mеореmuческuх урaвненuŭ было uссле¶rt;овaно nрu кaлuбрaцuu короmкоnерuо¶rt;uческого сеŭсмогрaфa с цuфровоŭ зanuсью.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01645466
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  • 7
    Electronic Resource
    Electronic Resource
    Deep structure of the lithosphere beneath the territory of Bulgaria (1987)
    Springer
    Studia geophysica et geodaetica 31 (1987), S. 266-283 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Description / Table of Contents: Summary Teleseismic P residuals calculated for waves arriving from various azimuths and angles of incidence, and a 3-D inversion of the residuals provided the basis for characterizing the uppermost mantle structure beneath Bulgaria. The Moesian Platform and the Rhodopean Massif are two different blocks characterized by a lithosphere thickness of about 130–140 km with a zone of lithosphere thinning along their contact. Both units have opposite patterns of the directional dependence of relatively high and low P velocities. This directional dependence is interpreted by dipping anisotropic structures in the subcrustal lithosphere, which probably represent remnants of paleosubductions of an old oceanic lithosphere.
    Notes: Резюме Рaсчumaны временные невязкu Р волн nрuхо¶rt;ящuх nо¶rt; рaзнымu aзuмуmaмu u у лaмu. Трехмернaя uнверсuя эmuх невязок ¶rt;aеm основу ¶rt;ля хaрaкmерuзaцuu сmрукmуры верхнеŭ мaнmuu nо¶rt; Бол aрuеŭ. Мuзuŭскaя nлamформa u Ро¶rt;оnскuŭ мaссuв, ¶rt;вa рaзлuчных блокa mолщuхоŭ лumосферы nрuблuзumельно 130–140 км с зоноŭ ¶rt;е лumосферa mоньше в¶rt;оль uх конmaкma. Обa блокa хaрaкmерuзовaны nроmuвоnоложно нanрaвленноŭ зaвuсuмосmыо оmносumельно высокоŭ u нuзкоŭ скоросmu Р волн. Эma нanрaвленнaя зaвuсuмосmь uнmерnреmuровaнa кaк nо руженuе aнuзоmроnных сmрукmур в верхнюю мaнmuю. Эmu сmрукmуры можно nре¶rt;сmaвumь кaк осmamкu naлеосуб¶rt;укцuŭ сmaроŭ океaнuческоŭ лumосферы.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01624758
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  • 8
    Electronic Resource
    Electronic Resource
    Isoseismals of the strongest Friuli aftershocks of September 1976 (1978)
    Springer
    Studia geophysica et geodaetica 22 (1978), S. 411-414 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary Isoseismal maps of the three strongest Friuli aftershocks of September 1976 were compiled using the contributions from European countries within the shaken area. The characteristic features of the macroseismic fields are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02179282
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  • 9
    Electronic Resource
    Electronic Resource
    Amplitude curves ofP waves for the region of central Asia (1977)
    Springer
    Studia geophysica et geodaetica 21 (1977), S. 259-267 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary The amplitude-distance curves of P waves, valid for the region of Central Asia, were derived in the distance range between 13° and 36° using observations of a network of eight Caucasian seismic stations. The curves are characterized by an anomalous increase of amplitudes between 13° and 20° followed by a large decrease of amplitudes in the distance range between 20° and 35°. Both the increase and decrease of amplitudes are interrupted by several local maxima. A comparison of the present amplitude curves with those derived for the regions of South-Eastern Europe and Asia Minor enabled us to correlate the individual local maxima of amplitude curves and to investigate the variation of their position due to the lateral inhomogeneity of the upper mantle structure in Eurasia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01613254
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  • 10
    Electronic Resource
    Electronic Resource
    Theoretical short-periodpPKP andPKP wave amplitudes (1991)
    Springer
    Studia geophysica et geodaetica 35 (1991), S. 196-202 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary The influence of the source depth and of the subduction slab dip on the ratio of the short-period pPKP and PKP wave amplitudes is calculated and discussed, for the case of earthquakes generated in the SW-Pacific Ocean and recorded at the seismological stations in Central Europe. The Preliminary Reference Earth Model (PREM) and double-couple radiation pattern were used in the calculations. It is shown that for the chosen values of dip, source depths and range of distances the ratio can change from about 0.2 to about 1.0, i.e. five times.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01614066
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