摘要：结合钢琴、管风琴和羽管键琴的基本发声原理和演奏特性,阐述三大键盘乐器在中国剧院中的配置理由、分布情况以及维护保养的注意事项。

摘要：结合国家大剧院管风琴,谈管风琴音栓的概念、工作原理、系统命名法和艺术价值。

摘要：We hypothesized that neuroprotective agents targeting various pathways involved in cerebral ischemia/reperfusion(I/R)injury might be superior to that targeting single ***,we prepared a fusion protein(B-I)by combining anti-apoptotic Bcl-x L(B)and anti-inflammatory IL-10(I).B-I could cross blood brain barrier by its N-terminal TAT domain,and be cleaved into separate B and I by Caspase-1.B-I treatment significantly reduced the cerebral infarct volume,better than B or I treatment alone,and equivalent to B and I treatment(B+I).Treatment with B or B-I significantly attenuated I/R-induced neuronal apoptosis as shown by the decrease in apoptotic rate and the inhibition of caspase-3 ***,all recombinant proteins,especially B-I,remarkably attenuated I/R-induced up-regulation of TNF-α.These results suggested that fusion protein B-I inhibiting both inflammation and apoptosis provided better neuroprotective effects than inhibiting either one *** study suggested that multiple pathways targeting brain I-R injury could enhance the neuroprotective effect,and it provided a new idea for the study of neuroprotective drugs for ischemic stroke.

摘要：本文概要介绍国家大剧院音乐厅管风琴采购过程,全面介绍管风琴的性能、安装、调试、发声原理、调音及验收方式。

摘要：本文介绍了一种基于RFID技术的危险化学品仓储管理系统及应用方法。该系统在现有危险化学品仓储管理中引入RFID技术,可以将货物、标签、信息建立唯一的对应关系,将货物以“电子镜像”的方式实时、可靠地映射在管理系统中,彻底改变传统人工管理信息滞后、效率低下、易出差错的现状,实现危险化学品检验、入库、盘点、出库等作业环节的自动化数据采集和存储环境监控。本文也给出该系统未来的试点应用方向。