火力发电厂锅炉蒸汽吹灰系统越来越多地采用分散控制系统(distribution control system,DCS),其控制逻辑一般由传统的DCS顺控模块构建,传统控制方式存在很多弊端,为此介绍一种全新的序列化编码顺控控制方式,该方式具有结构清晰明确、维...火力发电厂锅炉蒸汽吹灰系统越来越多地采用分散控制系统(distribution control system,DCS),其控制逻辑一般由传统的DCS顺控模块构建,传统控制方式存在很多弊端,为此介绍一种全新的序列化编码顺控控制方式,该方式具有结构清晰明确、维护简单、使用方便等优点。通过在某1000MW超超临界机组锅炉蒸汽吹灰控制系统中的实际使用,表明序列化顺序控制方式可满足各项工艺要求,可推广应用于各种同类控制领域。展开更多
Let A be the mod p Steenrod algebra for p an arbitrary odd prime. In 1962, Liulevicius described h i and b k in Ext* A ’*(Zp,Zp) having bigrading (1, sui— 1) and (2, 2p k+1 x(p— 1)), respectively. In this paper we ...Let A be the mod p Steenrod algebra for p an arbitrary odd prime. In 1962, Liulevicius described h i and b k in Ext* A ’*(Zp,Zp) having bigrading (1, sui— 1) and (2, 2p k+1 x(p— 1)), respectively. In this paper we prove that for p ≥ 7, n ≥ 4 and $3 \leqslant s < p - 1, h_0 b_{n - 1} \tilde \gamma _s \in Ext_A^{s + 3,p^n q + sp^2 q + (s - 1)pq + (s - 1)q + s - 3} (Z_p ,Z_p )$ survives to E∞ in the Adams spectral sequence, where q = 2(p — 1).展开更多
In this paper we consider a generalize dynamic entropy measure and prove that this mea- sure characterizes the distribution function uniquely. Also we propose cumulative resi- dual R^nyi entropy of order statistics an...In this paper we consider a generalize dynamic entropy measure and prove that this mea- sure characterizes the distribution function uniquely. Also we propose cumulative resi- dual R^nyi entropy of order statistics and prove that it also determines the distribution function uniquely. Applications of entropy concepts to DNA sequence analysis, the ulti- mate support for the biological systems, have been widely explored by researchers. The entropy measures discussed here can be applied for analysis of ordered DNA sequences.展开更多
文摘火力发电厂锅炉蒸汽吹灰系统越来越多地采用分散控制系统(distribution control system,DCS),其控制逻辑一般由传统的DCS顺控模块构建,传统控制方式存在很多弊端,为此介绍一种全新的序列化编码顺控控制方式,该方式具有结构清晰明确、维护简单、使用方便等优点。通过在某1000MW超超临界机组锅炉蒸汽吹灰控制系统中的实际使用,表明序列化顺序控制方式可满足各项工艺要求,可推广应用于各种同类控制领域。
基金This work was supported by the National Natural Science Foundation of China(Grant No.10171049)the Youth Project of Tianyuan Foundation(Grant No.10426028).
文摘Let A be the mod p Steenrod algebra for p an arbitrary odd prime. In 1962, Liulevicius described h i and b k in Ext* A ’*(Zp,Zp) having bigrading (1, sui— 1) and (2, 2p k+1 x(p— 1)), respectively. In this paper we prove that for p ≥ 7, n ≥ 4 and $3 \leqslant s < p - 1, h_0 b_{n - 1} \tilde \gamma _s \in Ext_A^{s + 3,p^n q + sp^2 q + (s - 1)pq + (s - 1)q + s - 3} (Z_p ,Z_p )$ survives to E∞ in the Adams spectral sequence, where q = 2(p — 1).
文摘In this paper we consider a generalize dynamic entropy measure and prove that this mea- sure characterizes the distribution function uniquely. Also we propose cumulative resi- dual R^nyi entropy of order statistics and prove that it also determines the distribution function uniquely. Applications of entropy concepts to DNA sequence analysis, the ulti- mate support for the biological systems, have been widely explored by researchers. The entropy measures discussed here can be applied for analysis of ordered DNA sequences.
