5 research outputs found
The Application of Borehole Hydrogeological Investigation for Assessing Landslide Susceptibility
On the basis of 49 borehole studies at the mid- and upper-stream of the Dajia and Jhuoshuei river basins, landslide occurrence was found to not only be related to subsurface geological composition and hydrogeological characteristics, but also to groundwater level dynamics, which have seldom been addressed in previous works. It is suggested that the interplay between hydrogeologic and landslide factors be given further consideration in future investigations. This would be a crucial step towards effective disaster prevention for mountainous regions in Taiwan.本研究主要係嘗試透過孔內水文地質調查結果,評估大甲溪與濁水溪流域地表下岩層的地質材料特性、水力特性、地下水與集水區山崩潛勢之關聯性。過去研究較少針對崩塌地進行現地水文地質調查與試驗,本研究根據49處試驗場址成果顯示,水文地質特性與山崩的潛勢、滑動深度,以及地下水位有一定程度之關聯性。本研究建議進行調查區域的水文地質特性,以及各促崩因子所造成的山崩的易損性,係各類型山崩災害分析與潛勢評估之重要的研究各題,亦可提供相關台灣災害防治之參考
單晶片式無機駐極體電容麥克風及其製造方法
本發明提供一種單晶片式無機駐極體電容麥克風及其製造方法。該單晶片式無機駐極體電容麥克風包含一機殼及一封裝於機殼中之駐極體電容麥克風晶片。該駐極體電容麥克風晶片一電極層、一自該第一電極層向下形成之駐極體振動膜、一自該駐極體振動膜向下形成且界定出一空間的氣室層,及一自該氣室層向下形成的背氣室單元,該氣室層包括以一蒸鍍層及一自該蒸鍍層向下形成的增厚層共同形成之一外環壁及多數被該外環壁環限的音孔塊,該電極層與該蒸鍍層藉該駐極體振動膜之一無機駐極體材料層構成一駐極體式電容,當一聲能作用於該電極層後,該駐極體振動膜對應產生形變而使電容變化,同時該駐極體振動膜形變引起之氣流可藉該外環壁與該等音孔塊彼此間的間隙在該氣室層之空間與機殼中流動