RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH by LIU Zhao, LIU YuMing, XU Hao, LI YaMei, ZHU YuTian

Subjects: “…Houfeng seismograph…”
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STABLE STRUCTURE OF INVERTED PENDULUM USED TO REVERT THE HOUFENG SEISMOGRAPH by CHEN MaoLin, CAO JiaWei, LIU Zhao, ZHU YuTian

Subjects: “…Houfeng seismograph…”
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DESIGN THEORY OF HOUFENG SEISMOGRAPH BASED ON SEISMIC RESPONSE SPECTRUM (MT) by ZHU YuTian, LI YaMei, LIU Zhao, XU Hao, LIU YuMing

“…The first major problem in the research on the restoration of the Houfeng seismograph is that the actual performance of the Houfeng seismograph is not clear, another major problem is the lack of effective performance inspection methods. …”
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Rotonda Mihail Sebastian (MLR, 1975) 30 de ani de la moarte by Lucian Chișu

“…The maintenance of the necessary balance is an undeniable fact, despite some interventions” of the last two decades, which aimed to be the seismograph of the intrusions of social command; in other words, of the communist propaganda in matters of literary art and its main themes. …”
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“A good deal about California does not, on its own preferred terms, add up”: Joan Didion between Dawning Apocalypse and Retrogressive Utopia by Eva-Sabine Zehelein

“…Her New Journalism-like observations of California are always closely linked to her own self and psyche, are seismographs of her own confusions, of moments of disorientation, insecurity, and loss. …”
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Selenophysics and models of the lunar three-layered mantle by E.V. Kronrod, Y.A. Nefedyev, V.A. Kronrod, O.L. Kuskov, A.O. Andreev

“…On the basis of the study of trajectories of seismic waves passing and features of their reflection from the lunar inner layers produced by the Apollo mission's seismographs, the composition and structure of the lunar core layers at various depths have been determined. …”
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