以Fant在1994年国际韵律特征研讨会上发表的论文(“Note on stress and word accent in Swedish”,Droc.of Inter.Symposium on Prosody,Sept.18,1994,Yokohama,Japan)为主,介绍当前韵律特征研究的新方向与新方法。文章着重介绍下列问题...以Fant在1994年国际韵律特征研讨会上发表的论文(“Note on stress and word accent in Swedish”,Droc.of Inter.Symposium on Prosody,Sept.18,1994,Yokohama,Japan)为主,介绍当前韵律特征研究的新方向与新方法。文章着重介绍下列问题:1.重音与音长。2.重音的知觉标度。3.重音与基频。4.嗓音声源参数。5.声强作为韵律特征参数。 文章也评介了韵律特征研究中所用的一些声学语音学的新方法。展开更多
Source spectra,corner frequency and zero frequency amplitudes in near-source conditions were measured using waveform data from 989 earthquakes with magnitudes larger than ML2.0 observed by the Beijing Digital Telemetr...Source spectra,corner frequency and zero frequency amplitudes in near-source conditions were measured using waveform data from 989 earthquakes with magnitudes larger than ML2.0 observed by the Beijing Digital Telemetry Seismic Network in the Capital Circle Region of China and its surrounding areas from January 2002 to June 2006 by the Brune model.Relevant formulas that were used for the calculation of dynamic source parameters include rupture radius,seismic moment,seismic energy,stress drop,and apparent stress.Scaling relations and characteristics of temporal-spatial variations of these dynamic parameters before the MS5.1 Wenan earthquake in Hebei Province that occurred on July 20,2006 were analyzed.Results show that apparent stress,stress drop,and the ratio of seismic energy to the rupture radius had relatively high values in some areas before the Wenan earthquake.These high-value concentration areas were mainly distributed in the North China Plain seismic zone.As is seen from the time curves,parameters,such as apparent stress,stress drop,and ratio of seismic energy to rupture radius underwent significant ascending processes before the Wenan earthquake,but the variation in the corner frequency showed a descending trend.This result might be related to the enhancement of stress in the North China Plain seismic zone before the earthquake.展开更多
文摘以Fant在1994年国际韵律特征研讨会上发表的论文(“Note on stress and word accent in Swedish”,Droc.of Inter.Symposium on Prosody,Sept.18,1994,Yokohama,Japan)为主,介绍当前韵律特征研究的新方向与新方法。文章着重介绍下列问题:1.重音与音长。2.重音的知觉标度。3.重音与基频。4.嗓音声源参数。5.声强作为韵律特征参数。 文章也评介了韵律特征研究中所用的一些声学语音学的新方法。
基金the Special Research Fund for Earthquake Science,China (200708023)
文摘Source spectra,corner frequency and zero frequency amplitudes in near-source conditions were measured using waveform data from 989 earthquakes with magnitudes larger than ML2.0 observed by the Beijing Digital Telemetry Seismic Network in the Capital Circle Region of China and its surrounding areas from January 2002 to June 2006 by the Brune model.Relevant formulas that were used for the calculation of dynamic source parameters include rupture radius,seismic moment,seismic energy,stress drop,and apparent stress.Scaling relations and characteristics of temporal-spatial variations of these dynamic parameters before the MS5.1 Wenan earthquake in Hebei Province that occurred on July 20,2006 were analyzed.Results show that apparent stress,stress drop,and the ratio of seismic energy to the rupture radius had relatively high values in some areas before the Wenan earthquake.These high-value concentration areas were mainly distributed in the North China Plain seismic zone.As is seen from the time curves,parameters,such as apparent stress,stress drop,and ratio of seismic energy to rupture radius underwent significant ascending processes before the Wenan earthquake,but the variation in the corner frequency showed a descending trend.This result might be related to the enhancement of stress in the North China Plain seismic zone before the earthquake.
