对于我们普通用户来说,当前阶段要享受HDTV给我们带来的超前娱乐享受,拥有一套高性能的家庭影音媒体中心系统是必要的前提。随着高性能个人电脑和大屏幕液晶显示器日益普及,传统的个人电脑平台日趋向家电方向演化,在数字家庭浪潮的推动...对于我们普通用户来说,当前阶段要享受HDTV给我们带来的超前娱乐享受,拥有一套高性能的家庭影音媒体中心系统是必要的前提。随着高性能个人电脑和大屏幕液晶显示器日益普及,传统的个人电脑平台日趋向家电方向演化,在数字家庭浪潮的推动下,家用电脑在完成媒介载体功能的同时也正在演变成家庭数字媒体娱乐中心——HTPC(Home Theater Personal Computer也就是家庭影院个人电脑,是以电脑作为信号源和处理核心的家庭影院系统)。高性能处理核心、高清晰宽屏显示、高质量音响配备构成了当前HTPC系统必不可少的配备。实际上,组建一套高性能的HTPC系统并不需要太高的门槛,对于以追求个性化和崇尚享乐主义为生活准则的年轻族群而言,自己动手打造一套属于自己的高清数字家庭影院系统无疑是既实用又前卫的选择。今天我们就一起来尝试构建属于自己的HTPC。展开更多
Experimental investigations into the collapse behavior of a box-shape hull girder subjected to extreme wave-induced loads are presented.The experiment was performed using a scaled model in a tank.In the middle of the ...Experimental investigations into the collapse behavior of a box-shape hull girder subjected to extreme wave-induced loads are presented.The experiment was performed using a scaled model in a tank.In the middle of the scaled model,sacrificial specimens with circular pillar and trough shapes which respectively show different bending moment-displacement characteristics were mounted to compare the dynamic collapse characteristics of the hull girder in waves.The specimens were designed by using finite element(FE)-analysis.Prior to the tank tests,static four-point-bending tests were conducted to detect the load-carrying capacity of the hull girder.It was shown that the load-carrying capacity of a ship including reduction of the capacity after the ultimate strength can be reproduced experimentally by employing the trough type specimens.Tank tests using these specimens were performed under a focused wave in which the hull girder collapses under once and repetitive focused waves.It was shown from the multiple collapse tests that the increase rate of collapse becomes higher once the load-carrying capacity enters the reduction path while the increase rate is lower before reaching the ultimate strength.展开更多
文摘对于我们普通用户来说,当前阶段要享受HDTV给我们带来的超前娱乐享受,拥有一套高性能的家庭影音媒体中心系统是必要的前提。随着高性能个人电脑和大屏幕液晶显示器日益普及,传统的个人电脑平台日趋向家电方向演化,在数字家庭浪潮的推动下,家用电脑在完成媒介载体功能的同时也正在演变成家庭数字媒体娱乐中心——HTPC(Home Theater Personal Computer也就是家庭影院个人电脑,是以电脑作为信号源和处理核心的家庭影院系统)。高性能处理核心、高清晰宽屏显示、高质量音响配备构成了当前HTPC系统必不可少的配备。实际上,组建一套高性能的HTPC系统并不需要太高的门槛,对于以追求个性化和崇尚享乐主义为生活准则的年轻族群而言,自己动手打造一套属于自己的高清数字家庭影院系统无疑是既实用又前卫的选择。今天我们就一起来尝试构建属于自己的HTPC。
基金Supported by the Ministry of Education, Science, Sports, and Culture, Grant-in-aid for Scientific Research (A), (23246150), 2011
文摘Experimental investigations into the collapse behavior of a box-shape hull girder subjected to extreme wave-induced loads are presented.The experiment was performed using a scaled model in a tank.In the middle of the scaled model,sacrificial specimens with circular pillar and trough shapes which respectively show different bending moment-displacement characteristics were mounted to compare the dynamic collapse characteristics of the hull girder in waves.The specimens were designed by using finite element(FE)-analysis.Prior to the tank tests,static four-point-bending tests were conducted to detect the load-carrying capacity of the hull girder.It was shown that the load-carrying capacity of a ship including reduction of the capacity after the ultimate strength can be reproduced experimentally by employing the trough type specimens.Tank tests using these specimens were performed under a focused wave in which the hull girder collapses under once and repetitive focused waves.It was shown from the multiple collapse tests that the increase rate of collapse becomes higher once the load-carrying capacity enters the reduction path while the increase rate is lower before reaching the ultimate strength.
