1) one direction variation S-knowledge
单向变异S-知识
1.
Filter characters of one direction variation S-knowledge and data mining;
单向变异S-知识的过滤特征及数据挖掘
2) filter degree of one direction variation S-knowledge
单向变异S-知识过滤度
3) granulation degree of one direction variation S-knowledge
单向变异S-知识粒度
4) one direction variation S-rough sets
单向变异S-粗集
5) variable precision one direction variation S-rough sets
变精度单向变异S-粗集
6) variation knowledge
变异知识
1.
The approximate precision degree of variation rough sets and the properties of variation knowledge;
变异粗集近似精度与变异知识特性
2.
By using concept of variation rough sets,this paper presents the concept of filter degree of variation knowledge,the characters about granulation and filter of variation knowledge are also discussed.
利用变异知识的概念,提出了变异知识过滤度的概念,对变异知识[α/R]的颗粒特征、过滤特征进行了讨论。
3.
Presents the dependency concept of variation knowledge, advances transfer theorem of variation knowledge dependence, dependency finite extension theorem of variation knowledge and application of variation knowledge in knowledge mining.
给出变异知识的依赖概念 ,提出变异知识依赖的传递性定理 ,变异知识的依赖有限扩张定理 ,给出变异知识依赖在知识挖掘中的应
补充资料:单向阀的工作原理
如图l所示,单向阀是气流只能一个方向流动而不能反向流动的方向控制阀。其工作原理与液压单向阀一样。压缩空气从尸口进入,克服弹簧力和摩擦力使单向阀阀口开启,压缩空气从P流至A;当P口无压缩空气时,在弹簧力和A口(腔)余气力作用下;阀口处于关闭状 态,使从A至P气流不通。单向阀应用于不允许气流反向流动的场合,如空压机向气罐充气 时,在空压机与气罐之间设置一单向阀,当空压机停止工作时,可防止气罐中的压缩空气回流 到空压机。单向阀还常与节流阀、顺序阀等组合成单向节流阀、单向顺序阀使用。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条