So the paper studies this problem from two aspects . one is the static queue model ; the other is the dynamic petri net model . it provides the evidence to optimize the whole sorting system configure 供包系統(tǒng)是提高分揀效率的瓶頸,因此本文從靜態(tài)的排隊(duì)模型和動(dòng)態(tài)petri網(wǎng)模型兩方面對(duì)其進(jìn)行研究,優(yōu)化整個(gè)分揀系統(tǒng)的配置,并通過計(jì)算機(jī)仿真對(duì)其進(jìn)行驗(yàn)證。
The performances of atm switches with different butter queueing model are analyzed in the third part of this paper . we discuss the performances of input queue switch , shared memory switch and output queue switch respectively 第三部分對(duì)不同緩沖排隊(duì)模型的atm交換機(jī)的性能進(jìn)行了分析,分別討論了輸入排隊(duì)交換機(jī)、共享存儲(chǔ)排隊(duì)交換機(jī)及輸出排隊(duì)交換機(jī)的的性能。
Next , under the same conditions as queuing model , we present the gspn model of interworking unit . in the meanwhile , we analyze the relations between setup and releasing of connections and performance of model 接下來我們?cè)诘竭_(dá)過程和排隊(duì)模型一致的條件下,給出了網(wǎng)間互聯(lián)器的gspn行為模型,并且分析了在不同的網(wǎng)絡(luò)負(fù)載下,連接的建立和釋放與性能之間的關(guān)系。
Through computation of examples , researches distinction between single - queuing model and multi - queuing model , provides the theory basis for passenger organization and the area design in the check - in hall and promotes queuing theory in airport terminals design 通過實(shí)例計(jì)算,研究單路排隊(duì)和多路排隊(duì)方式的區(qū)別,為航站樓值機(jī)大廳的旅客組織和面積設(shè)計(jì)提供理論依據(jù),推廣排隊(duì)論在航站樓設(shè)計(jì)中的應(yīng)用。
Section 5 discusses factors related to ejb performance from two aspects : program design and container deployment , constructs a simulated queueing model . at last , the analysis results are validated by performance and load test 第五部分從程序設(shè)計(jì)和容器部署兩方面分析了了影響ejb性能的因素,提出了改善性能的措施和策略,建立了一個(gè)模擬ejb系統(tǒng)的排隊(duì)模型,并通過實(shí)際性能和負(fù)載測(cè)試驗(yàn)證了分析結(jié)果。
Secondly the paper describes mathematically the steady index for container terminals based on the theory of queue networks and then deals with the events of the queue models of vessel arriving and leaving in this disperse system using the event scheduling method 其次,論文以排隊(duì)網(wǎng)絡(luò)理論,對(duì)集裝箱碼頭的一些穩(wěn)態(tài)指標(biāo)作了數(shù)學(xué)描述,最后利用事件調(diào)度法對(duì)集裝箱碼頭這一離散系統(tǒng)的船舶到、離港的排隊(duì)模型進(jìn)行事件處理。
? 1 , ? 2 and ? 3 of this chapter deals respectively with the limit behavior of the iterative sequence defined by models 1 , 2 , 3 , and provide some sufficient conditions for their convergence . part two is the second chapter , in which four queueing models are established 在這一章的1 、 2和3中,分別討論了模型1 ,模型2和模型3所確定的迭代序列的極限行為,給出了它們?cè)谀撤N意義下收斂或以幾何速率收斂的若干充分條件。
In this thesis , the multi - channel sharing system is considered as a stochastic service system . based on the steady state solution of the birth and death process which state space is a limited set , utilized m / m / n / n / m queue model , the call congestion ratio formula and the channel utilization ratio formula fitting to the limited user system are derived . drawing support from the visual data analyzing function of the software matlab , the value divergence between the formulas and the corresponding one fitting to the infinite user system are compared 本文將多信道共用通信系統(tǒng)視為一個(gè)隨機(jī)服務(wù)系統(tǒng),根據(jù)有限狀態(tài)生滅過程的穩(wěn)態(tài)解,利用m m n n和m m n n m兩類排隊(duì)模型,分別推導(dǎo)出了無限用戶和有限用戶兩類多信道共用系統(tǒng)的呼損率公式和信道利用率公式;借助于matlab的可視化數(shù)據(jù)分析功能,比較了這兩組公式在數(shù)值上的差異;指明了兩組公式的適用條件。
Chapter 4 explores the impact of the task allocation and schedule strategy on the performance of multi - processor system . compares several model methods such as petri net and queue model , then proposes a new model method named distributed finite state machine ( dfsm ) . based on this method , and with the assistant of vhdl design and simulation environment , the model of dynamic reconfigurable multi - dsp system is constructed and the simulation of fft algorithm is run under verilog xl 浙江大學(xué)博士學(xué)位論文第四章論述了基于模型分析方法的性能研究對(duì)并行處理系統(tǒng)設(shè)計(jì)應(yīng)用的重要性,結(jié)合vvp平臺(tái)動(dòng)態(tài)可重構(gòu)并行系統(tǒng)的結(jié)構(gòu)特點(diǎn)以及sharc處理器的特性,對(duì)petri網(wǎng)及查詢隊(duì)列等系統(tǒng)建模方法進(jìn)行比較,提出了分布式有限狀態(tài)機(jī)( dfsm , distributedfinitestatemachine )的建模方法,井對(duì)在動(dòng)態(tài)可重構(gòu)多sharc系統(tǒng)運(yùn)行的并行任務(wù)進(jìn)行了的建模仿真。
Furthermore , real - time system , real - time os and real - time middleware are distinguished in detail , with the conclusion that real - time middleware should provide the mechanism of time - constraints presentation and resource control . based on queuing simulation , a new fp queuing model for real - time middleware is proposed to evaluate the real - time middleware architecture 本文建立的概念體系回答了實(shí)時(shí)中間件同實(shí)時(shí)系統(tǒng)、實(shí)時(shí)操作系統(tǒng)之間的關(guān)系,指出實(shí)時(shí)中間件要為應(yīng)用提供表達(dá)時(shí)間約束的機(jī)制并提供控制各種資源的手段和方法,以保證時(shí)間約束的實(shí)現(xiàn)。