论文部分内容阅读
热塑性聚合物开辟新市场
【出 处】
:
石油化工
【发表日期】
:
2004年7期
其他文献
In order to protect the website and assess the security risk of website, a novel website security risk assessment method is proposed based on the improved Bayes
Network structures and human behaviors are considered as two important factors in virus defense currently. However, due to ignorance of network security, normal
利用(R,R)-环己二胺和5-苄氧基-3-叔丁基水杨醛合成了新型手性Salen配体(R,R)-双(5-苄氧基-3-叔丁基水杨醛)-环己烷-1,2-二胺.利用此配体制备了Salen Mn(Ⅲ)配合物并以NaOCl
Attribute-based encryption(ABE) supports the fine-grained sharing of encrypted data.In some common designs,attributes are managed by an attribute authority that