Associating sequential and concurrent schedules , by administering chemotherapy before or after concurrent chemoradiation , has been re - cently investigated , but the best sequence remains a matter of controversy 最近有人研究在放化療并用之前或之后用續(xù)貫化療和并行化療,但是最好的次序仍在爭(zhēng)論中。
Based on the analysis on the concurrent processing performance requirements of monitoring system , a priority queuing algorithm is proposed to realize the concurrent scheduling of vehicle monitoring system with the algorithm implementation scheme given 在對(duì)監(jiān)控中心并發(fā)處理的性能要求進(jìn)行分析的基礎(chǔ)上,提出了優(yōu)先數(shù)事件隊(duì)列算法來(lái)實(shí)現(xiàn)車(chē)輛監(jiān)控中心的并發(fā)調(diào)度機(jī)制,并給出了算法實(shí)現(xiàn)。
To verify the feasibility of the architecture and investigate its applicability , according to the three basic concepts for holonic manufacturing control : " hierarchy in distributed systems " , " distribution of decision power " and " concurrent scheduling and schedule execution " , this dissertation presents a holonic manufacturing control architecture and an interaction mechanism that combine the best of hierarchical and heterarchical control 為了驗(yàn)證hms - ra體系結(jié)構(gòu)的可應(yīng)用性,本文進(jìn)一步基于“分布式系統(tǒng)中的遞階結(jié)構(gòu)” 、 “分布式?jīng)Q策能力”和“并行的調(diào)度與調(diào)度執(zhí)行”這三個(gè)有關(guān)合弄制造控制的基本概念,深入研究了合弄制造的控制結(jié)構(gòu)和制造合弄間的交互機(jī)制,以便將遞階制造控制和分布式制造控制的優(yōu)點(diǎn)結(jié)合起來(lái)。
We analysis the conflict , convert channel and starvation problems of concurrent schedule based on strict - 2pl locking protocal which applies nhstm model , then present a concurrent scheduling algorithm making use of buffer and point p . also , we proved the concurrent schedule algorithm is serializable . at the same time , we introduce the key technical used in nhsdb concurrency control mechanism , and give the implementation details 我們對(duì)應(yīng)用nhstm模型的,通過(guò)應(yīng)用嚴(yán)格兩段鎖協(xié)議實(shí)施的并發(fā)調(diào)度中,可能存在的并發(fā)沖突,隱通道和饑餓問(wèn)題進(jìn)行分析,在此基礎(chǔ)上提出了一種利用緩沖和p點(diǎn)的并發(fā)調(diào)度算法,并給出了該算法的并發(fā)調(diào)度正確性證明,解決多級(jí)安全條件下的隱通道和饑餓問(wèn)題。