Glycoconjugate, as a carrier of message, has important biological functions. The sugar moiety contains surprising information. Its molecular structure has been paid increasing attention to since the 1980’s. The appli...Glycoconjugate, as a carrier of message, has important biological functions. The sugar moiety contains surprising information. Its molecular structure has been paid increasing attention to since the 1980’s. The application of softionization techniques, such as展开更多
Polk Audio顶级家用扬声器LSiM系列,包括落地式、书架式、中置声道和环绕声道多个型号,采用Polk“动态平衡”(DYnamiC Balance)设计技术的顶级声学换能器,将最新的复合材料和计算机辅助设计的外形结合起来,使得驱动器的声音具有...Polk Audio顶级家用扬声器LSiM系列,包括落地式、书架式、中置声道和环绕声道多个型号,采用Polk“动态平衡”(DYnamiC Balance)设计技术的顶级声学换能器,将最新的复合材料和计算机辅助设计的外形结合起来,使得驱动器的声音具有极低的失真和极少的人工处理痕迹;并采用了Polk最先进的材料工程技术,例如超级透气窝形的聚丙烯锥盆可以减少锥盆的重量并降低因锥盆重量造成的失真。展开更多
基金Project supported by the National Natural Science Foundation of China and by NIH grant (to A. L. B.).
文摘Glycoconjugate, as a carrier of message, has important biological functions. The sugar moiety contains surprising information. Its molecular structure has been paid increasing attention to since the 1980’s. The application of softionization techniques, such as