Based on the former performance capacity experiments of the magnet-friction energy dissipation devices, including the permanent magnet-friction energy dissipation device (PMF) and electromagnet-friction energy dissipa...Based on the former performance capacity experiments of the magnet-friction energy dissipation devices, including the permanent magnet-friction energy dissipation device (PMF) and electromagnet-friction energy dissipation devices (EMF), a 5-story steel frame model with spacious first story is designed and made according to a scale of 1/4. The magnet-friction energy dissipation devices can realize continuously varied controlling force, with rapid response and reverse recognition. Therefore, they overcome shortcomings usually found in energy dissipation devices whose force models are invariable. The two kinds of devices were fixed on the flexible first story of the structure model, and the shaking table tests have been carried out, respectively. In these tests, the performance of the devices and their effectiveness in structural control were confirmed. In this paper, the test results and analysis are discussed.展开更多
THE small office, situated in the spacious campus, is pretty obscure. Similarly obscure is the iron cabinet which stands in the corner of the office containing 27 blue file holders. Each file holder is 3.5 centimeters...THE small office, situated in the spacious campus, is pretty obscure. Similarly obscure is the iron cabinet which stands in the corner of the office containing 27 blue file holders. Each file holder is 3.5 centimeters wide. Put side by side on a table, they stretch across less than one meter in length. They hold the files of around 1,900 school-age children from 12 villages in Zengkou Primary School of Bazhou District, Bazhong City of Sichuan Province.展开更多
文章通过Avery Index of Architectural Journals对室内空间开放感文献及其参考文献中的量化研究方法进行检索与整理,将其总结分类为针对感知的量化方法、针对空间结构的量化方法与混合方法三类,分别进行了概括和评述,并对空间开放感量...文章通过Avery Index of Architectural Journals对室内空间开放感文献及其参考文献中的量化研究方法进行检索与整理,将其总结分类为针对感知的量化方法、针对空间结构的量化方法与混合方法三类,分别进行了概括和评述,并对空间开放感量化方法的未来研究和应用方向进行了简要展望。展开更多
根据Morimoto(1989年)的报告,当考虑厅堂中空间感声定位的影响时,混响声能(T_(60)=0.3、0.9s)可视为早期反射音声能(延迟为80、160ms)来探讨,但音乐样本仅限于莫扎特第41交响乐第4乐章.为证明空间声源定位的敏感性取决于音乐的结构特性...根据Morimoto(1989年)的报告,当考虑厅堂中空间感声定位的影响时,混响声能(T_(60)=0.3、0.9s)可视为早期反射音声能(延迟为80、160ms)来探讨,但音乐样本仅限于莫扎特第41交响乐第4乐章.为证明空间声源定位的敏感性取决于音乐的结构特性,文中以样本A(Royal Pavane by Gibbon,τ_e=127ms)、样本B(Sinfonietta,Opus 48;Ⅳmovement;Allegro con brio by Arnold,τ_e=35ms)和样本S(Speech,female,τ_e=23ms)为音乐样本,根据Y.Ando的声场设计理论——理想混响时间的决定因素是声源自相关函数的有效时延(τ_e),将混响时间设为短(0.3s)、中(0.9s)及长(2.0s)混响.12位受试者判断的声源定位,通过正态分布标度法在两个水平刺激角中加以确定.结果表明,声源样本A的准确度最高,而样本S最低(p<0.01),这主要是由于它们的τ_e不同造成的,即声源样本之间混响声声像定位感的显著差别将对人的声源空间感产生影响.至于混响时间,文中未发现其对空间感的影响有所不同.展开更多
文摘Based on the former performance capacity experiments of the magnet-friction energy dissipation devices, including the permanent magnet-friction energy dissipation device (PMF) and electromagnet-friction energy dissipation devices (EMF), a 5-story steel frame model with spacious first story is designed and made according to a scale of 1/4. The magnet-friction energy dissipation devices can realize continuously varied controlling force, with rapid response and reverse recognition. Therefore, they overcome shortcomings usually found in energy dissipation devices whose force models are invariable. The two kinds of devices were fixed on the flexible first story of the structure model, and the shaking table tests have been carried out, respectively. In these tests, the performance of the devices and their effectiveness in structural control were confirmed. In this paper, the test results and analysis are discussed.
文摘THE small office, situated in the spacious campus, is pretty obscure. Similarly obscure is the iron cabinet which stands in the corner of the office containing 27 blue file holders. Each file holder is 3.5 centimeters wide. Put side by side on a table, they stretch across less than one meter in length. They hold the files of around 1,900 school-age children from 12 villages in Zengkou Primary School of Bazhou District, Bazhong City of Sichuan Province.
文摘文章通过Avery Index of Architectural Journals对室内空间开放感文献及其参考文献中的量化研究方法进行检索与整理,将其总结分类为针对感知的量化方法、针对空间结构的量化方法与混合方法三类,分别进行了概括和评述,并对空间开放感量化方法的未来研究和应用方向进行了简要展望。
文摘根据Morimoto(1989年)的报告,当考虑厅堂中空间感声定位的影响时,混响声能(T_(60)=0.3、0.9s)可视为早期反射音声能(延迟为80、160ms)来探讨,但音乐样本仅限于莫扎特第41交响乐第4乐章.为证明空间声源定位的敏感性取决于音乐的结构特性,文中以样本A(Royal Pavane by Gibbon,τ_e=127ms)、样本B(Sinfonietta,Opus 48;Ⅳmovement;Allegro con brio by Arnold,τ_e=35ms)和样本S(Speech,female,τ_e=23ms)为音乐样本,根据Y.Ando的声场设计理论——理想混响时间的决定因素是声源自相关函数的有效时延(τ_e),将混响时间设为短(0.3s)、中(0.9s)及长(2.0s)混响.12位受试者判断的声源定位,通过正态分布标度法在两个水平刺激角中加以确定.结果表明,声源样本A的准确度最高,而样本S最低(p<0.01),这主要是由于它们的τ_e不同造成的,即声源样本之间混响声声像定位感的显著差别将对人的声源空间感产生影响.至于混响时间,文中未发现其对空间感的影响有所不同.
