Greek and Shakespearean tragic truth emerges from pollution, moral brokenness, and pain. This also applies to the tragic truth of the Indian epics, except that this karmic kind of truth is not considered decisive. Cru...Greek and Shakespearean tragic truth emerges from pollution, moral brokenness, and pain. This also applies to the tragic truth of the Indian epics, except that this karmic kind of truth is not considered decisive. Crucial in the Indian case is cosmic truth, and Hindu cosmic truth is never produced out of pollution or pain. In Arjuna＇s case, Krishna＇s revelatory knowledge is religiously saving knowledge, whereas in Oedipus＇ case, Apollo＇s and Teiresias＇ revelatory knowledge is religiously dooming knowledge. In Hamlet＇s case, religiously saving knowledge is an object of theological speculation and of philosophical doubt. In the Hindu case, self-knowledge means absolute knowledge and ultimate liberation; in the Greek case, self-knowledge means self-discovery and the recognition of human fragility; in the Shakespearean case, self-knowledge means self-exploration and doubting oneself.展开更多
This study introduces measures to identify resonant (concentration of energy in a single or a few frequencies) or unfavorable earthquake ground motions. Probabilistic measures based on the entropy rate and the geometr...This study introduces measures to identify resonant (concentration of energy in a single or a few frequencies) or unfavorable earthquake ground motions. Probabilistic measures based on the entropy rate and the geometric properties of the power spectral density function (PSDF) of the ground acceleration are developed first. Subsequently, deterministic measures for the frequency content of the ground acceleration are also developed. These measures are then used for identifying resonance and criticality in stochastic earthquake models and 110 acceleration records measured at rock, stiff, medium and soft soil sites. The unfavorable earthquake record for a given structure is defined as the record having a narrow frequency content and dominant frequency close to the structure fundamental natural frequency. Accordingly, the measures developed in this study may provide a basis for selecting records that are capable of producing the highest structural response. Numerical verifications are provided on damage caused to structures by identified resonant records.展开更多
文摘Greek and Shakespearean tragic truth emerges from pollution, moral brokenness, and pain. This also applies to the tragic truth of the Indian epics, except that this karmic kind of truth is not considered decisive. Crucial in the Indian case is cosmic truth, and Hindu cosmic truth is never produced out of pollution or pain. In Arjuna＇s case, Krishna＇s revelatory knowledge is religiously saving knowledge, whereas in Oedipus＇ case, Apollo＇s and Teiresias＇ revelatory knowledge is religiously dooming knowledge. In Hamlet＇s case, religiously saving knowledge is an object of theological speculation and of philosophical doubt. In the Hindu case, self-knowledge means absolute knowledge and ultimate liberation; in the Greek case, self-knowledge means self-discovery and the recognition of human fragility; in the Shakespearean case, self-knowledge means self-exploration and doubting oneself.
基金Project (No. JSPS-P-08073)supported by the Japanese Society for the Promotion of Science
文摘This study introduces measures to identify resonant (concentration of energy in a single or a few frequencies) or unfavorable earthquake ground motions. Probabilistic measures based on the entropy rate and the geometric properties of the power spectral density function (PSDF) of the ground acceleration are developed first. Subsequently, deterministic measures for the frequency content of the ground acceleration are also developed. These measures are then used for identifying resonance and criticality in stochastic earthquake models and 110 acceleration records measured at rock, stiff, medium and soft soil sites. The unfavorable earthquake record for a given structure is defined as the record having a narrow frequency content and dominant frequency close to the structure fundamental natural frequency. Accordingly, the measures developed in this study may provide a basis for selecting records that are capable of producing the highest structural response. Numerical verifications are provided on damage caused to structures by identified resonant records.
