queue control 中文意思是什麼

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。

Combining with the evolution of congestion control mechanisms, the existed technologies for congestion avoidance and recovery in ip networks are reviewed. the unsolved problems and hot spots in subdiscipline, such as tcp flow control, end - to - end flow control and enhanced mechanism in intermediate nodes, are summarized, and the advantages and disadvantages of all kinds of schemes for active queue management are emphatically analyzed

本文回顧了ip網路中已有的擁塞控制技術；研究了internet中tcp的基於窗口的端到端擁塞控制方法以及ip層採用的擁塞控制機制，總結了tcp流量控制和中間節點增強機制等各研究子方向中需要解決的問題。

After that, qos management methods are introduced, including packet classification, congestion control and buffer queue management. several queuing principles are compared such as fifo queuing, prioritized queuing and weighted fair queuing. tail drop and active queue management are also introduced in this part

同時對epon系統採用的qos管理策略做了詳細的闡述，分析了報文分類方法、擁塞管理策略、緩沖隊列管理策略，對比了fifo隊列、 pq隊列和wfq隊列等幾種主要的隊列特點，以及尾丟棄和主動隊列管理aqm的區別。

As a result of studying, we gain three system time capability parameter of monolayer bus framework and two - double bus framework, data bus utilization, length of the data waiting queue and time of system timed, basing on fixed bc control seasonal repertoire timed petri net and stochastic petri net

研究結果分別得出了單總線和雙總線的基於固定主控端周期指令時延petri網的數據總線利用率、等候消息隊長、系統延時時間；基於隨機petri網的數據總線利用率、等候消息隊長、系統延時時間共三個系統時間性能指標。

This text has analysed load balancing method of existent especially lvs cluster system and recommended the net packet and netfilter ’ s frame structures in the linux operating system ; it has compared the cooperative - type - cluster with tradictional cluster in the net packets ’ queue ways and with active cluster in the load balancing dispatcher way, which has reflected the superiority of cooperation type cluster ; the three major parts of the cooperative - type - cluster have been designed and realized in this text, which includes sync packets ’ priority service for dmcs 、 “ priority and avoid sudden load unbalance ” dispatch way at the cooperation of nodal servers and director and active nodal server which ensure cluster normally running when cluster join or rduce node server ; the cooperative - type - cluster ’ s control frame controlled by homepage has been constructed ; the mulit - services cluster system has been realized ; this text has used the existing server pressure testing tools to test the cooperative - type - cluster and lvs cluster, then has comparaed and analysed the two

本文分析了現有服務器集群特別是lvs集群系統的負載均衡方法，介紹了linux系統下的報文和netfilter的框架結構;將所提出的合作式集群與傳統集群在報文排隊方式上進行比較，與主動式集群在負載均衡調度方式上進行比較，體現了合作式集群的優越性;設計並實現了合作式集群體系結構的三大部分:針對分散式測控系統的加權服務、負載均衡器與節點服務器合作式「加權防突」負載調度、保證集群運行不受加減節點干擾的主動性真實服務器;構建了通過網頁界面控制合作式集群的控制框架;實現了一個可運行的合作式多服務集群系統，運用現有服務器壓力測試工具對合作式集群和lvs集群進行負載測試，並對測試結果進行比較分析，同時通過壓力測試實現加權服務。

Thus, efci algorithm is improved and the oscillation is overcome validly. and further, a linear pid controller is designed to replace the nonlinear component in the standard efci algorithm, it makes flow control system more robust, at same time, controls the queue length to expected value, which is beneficial to decrease delay in queue

為了進一步克服系統振蕩問題，提出採用一種線性的pid控制器來替換標準efci演算法中的非線性環節，增強了系統的魯棒性，並實現了隊列長度的定點控制，有效地減少了排隊延時。

Control whether multicast data sent by the socket appears as incoming data in the sockets receive queue

控制套接字發送的多路廣播數據是否在套接字接收隊列中顯示為傳入數據。

After these discussions, we ' ll focus on the implementation of traffic control on the linux operating system, including the new queue processing, new packet classify processing, the interface to the traffic control, the modification of network adapter driver. this thesis consists of five chapters. the first chapter analyzes the rapid development and the traffic control requirements of the distributed parallel firewall system, and points out the necessity for the implementation of load balance in distributed parallel firewall system

為了解決以上問題，本文首先描述了整個分散式并行系統的邏輯結構，然後分析了現階段的linux自身的流量控制機制和流量分發技術;接著重點描述了分散式并行防火墻系統的流量控制和分發機制的整體設計以及相關的關鍵技術的研究和實現，主要包括下面的內容: linux自身的流量控制機制的改進、整個系統流量負載均衡的實現、網卡驅動程序的修改等。

The integral structure of system are analyzed, and a scheme based on dsps processing board + mcu control board are put forward firstly, following design difficulties and relevant measures. every modules of dsps board are described in details, including chips selection, implementation manners choice, interface and time sequence match and etc. compared otsu single threshold segmentation with multi - threshold segmentations, the latter are preferred to perform the object identification in hardware designed by author. combined to like background rejection, morphology expansion and etc. steps, the paper gets the length of queue ; finally, a - b united control and area united control based on can bus are designed

首先分析了系統的總體結構，提出了一種基於dsps處理板+單片機控制板的信號機實現方案；在此基礎上，重點介紹了處理板模塊化的硬體電路設計，其中考慮了晶元的選型、實現方式的選擇、工作機制、時序匹配等問題；之後，分析了otsu單閾值目標識別和多閾值目標識別的效果，重點選擇後者在硬體電路板內對圖像進行了目標識別的演算法處理，結合背景的剔除、形態學膨脹等幾個減小誤差的措施，對車輛排隊長度進行了較為精確的提取；最後在控制板上完成了干線a - b信號聯動控制和基於can總線的區域聯網控制的通訊方案設計。

An algorithm to resolve the coupling effect problem is proposed during the cross point assignment ( cpa ) stage. in the algorithm, the priority queue concept and the rip - up and reroute strategy are combined to control crosstalk noise caused by interconnect coupling capacitance. first, the nets are arranged into different priority queues according to their weighted sum of their length and criticality. then, the cpa problem for one queue of nets is translated into a linear assignment problem. after the assignment of one queue of nets, a post - cpa checking routine is performed to check and rip up the net pairs which violate the crosstalk noise constraint and then push them into the next queue to be reassigned. the algorithm is tested by a set of bench mark examples, and the experimental results are promising

提出了一種在過點分配階段解決噪聲耦合效應問題的演算法.該演算法採用優先隊列同拆線重布策略相結合的方法，控制由互連線耦合電容引起的串擾噪聲.演算法中，首先按照線長和約束限制，將線網劃分到若干個優先隊列中.然後，將每個優先隊列的過點分配問題轉換為線性分配問題.在完成一個線網隊列的分配后，通過過點分配后處理過程檢查串擾約束滿足情況，對違反約束的線網對進行拆除，放入后續線網隊列進行重新分配.實驗數據表明，該演算法能夠取得好的效果

Abstract : an algorithm to resolve the coupling effect problem is proposed during the cross point assignment ( cpa ) stage. in the algorithm, the priority queue concept and the rip - up and reroute strategy are combined to control crosstalk noise caused by interconnect coupling capacitance. first, the nets are arranged into different priority queues according to their weighted sum of their length and criticality. then, the cpa problem for one queue of nets is translated into a linear assignment problem. after the assignment of one queue of nets, a post - cpa checking routine is performed to check and rip up the net pairs which violate the crosstalk noise constraint and then push them into the next queue to be reassigned. the algorithm is tested by a set of bench mark examples, and the experimental results are promising

文摘:提出了一種在過點分配階段解決噪聲耦合效應問題的演算法.該演算法採用優先隊列同拆線重布策略相結合的方法，控制由互連線耦合電容引起的串擾噪聲.演算法中，首先按照線長和約束限制，將線網劃分到若干個優先隊列中.然後，將每個優先隊列的過點分配問題轉換為線性分配問題.在完成一個線網隊列的分配后，通過過點分配后處理過程檢查串擾約束滿足情況，對違反約束的線網對進行拆除，放入后續線網隊列進行重新分配.實驗數據表明，該演算法能夠取得好的效果

As an example, asynchronous message queue management and hi - level work - flow control has been implemented

例如，異步信息排隊管理和高級工作流控制。

With regard to the flow regulation of the best - effort traffic, the controllable traffic in high speed computer communication networks, the present paper proposes a novel control theoretic approach that designs a proportional - integrative ( pi ) controller based on multi - rate sampling for congestion controlling. based on the traffic model of a single node and on system stability criterion, it is shown that this pi controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the congestion - controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destionation node ; and the steady value of queue length is consistent with the specified threshold value

本文從控制理論的角度出發，針對計算機高速網際網路中最大服務交通流即能控交通流的調節問題提出了一種基於多速率采樣的具有比例積分（ pi ）控制器結構的擁塞控制理論和方法，在單個節點的交通流的模型基礎上，運用控制理論中的系統穩定性分析方法，討論如何利用信終端節點緩沖佔有量的比例加積分的反饋形式來調節信源節點的能控交通流的輸入速率，從而使被控網路節點的緩沖佔有量趨于穩定;同時使被控網路節點的穩定隊列長度逼近指定的門限值。

The simulation experiment results using ns software tool show that the scheme can flexibly control the length of queue and reduce the jitter of delay

通過ns模擬實驗表明了該演算法可以很好的控制隊列長度，降低延遲抖動。

In fact, it will be more effective for detecting and preventing congestion if the routers peilbini congestion control strategies, so ip congestion control strategies has been discussed widely in recent years. the ietf has proposed the solution by deploying active queue management in internet routers. in this paper, chapter one gives a general introduction to the network congestion control

由於在路由器中引入相應的擁塞控制機制，使網路本身參與資源的控制工作可以更有效地實現對擁塞的監測和預防，因此近幾年ip擁塞控制策略成為當前網路研究的一個熱點， ietf建議在internet路由器上採用主動隊列管理機製作為ip層參與擁塞控制的手段，隨機提前檢測（ red ）演算法是ietf推薦的一種主動隊列管理演算法。

It is found ecn could n ' t solve the problem that the sender responds to congestion slowly, and the average queue length of router is sensitive to the static parameters of ecn. in chapter four we propose an algorithm called fecn, which provides congestion control and indication messages in router, so that the sender could response to congestion in good time. this algorithm can also adjust the max drop probability according to the active conne

Ik的特性，而且平均隊列長度和網路吞吐量對ecn的靜態參數較為敏感，因此本文在第4章中提出了一種fecn演算法，該演算法在路山器處提供擁塞控制和指示機制，使源端能夠快速響應路由器發回的擁塞指示消息，調整發送速率，避兔擁塞的發生，該演算法還可以通過估計鏈路中的活動連接數動態調整最大丟棄概率。

Secondly, it makes a study of the operating platform and terminal of video - conference system. thirdly, it goes into multimedia image format, c / s and b / s mode, the interface technology of database and how to transmit, saving and browsing images on network. at last, it also has a study of tcp / ip ( transmission control protocol / internet protocol ) protocol, h. 323 protocol, com + ( component object module ), ado ( activex data objects ), msmq ( microsoft message queue )

本論文結合「 xmediabase視頻會議系統」的實際項目，論述了視頻會議系統的背景和應用前景，提出一套視頻會議系統的設計方案，研究和開發了一個支持視頻會議系統的運營平臺和終端；深入研究了多媒體圖像格式，圖像在網路上的傳輸、存儲與瀏覽， b / s模式以及在b / s模式中數據庫的介面技術；同時對tcp （ transmissioncontrolprotocol ） / ip （ internetprotocol ）協議、 h . 323協議、 com + （ componentobjectmodule ）組件技術、 ado （ activexdataobjects ）技術、消息隊列服務等做了研究與開發工作。

Active queue management is the transport control problem in the end - to - end system, routing is about resource allocation and assignment which can decide directly the qos of certain applications

隊列管理是從網路結點出發研究端到端的傳輸控制問題；路由是從網路資源管理出發研究資源分配問題。

Make clear the procedure of sending and receiving packet of kernel and the implementation of traffic control. the special mechanism in linux such as wait queue, task queue, time interrupt is also explained. after analyzing the file system of linux at large, we bring forward the design of modifying of file system. since many little file is created during the service of email and file service, we introduce the non volatile random access ram, by modifying the arithmetic of file system, changing the data flow of file system

本文詳細介紹了針對網路專用服務器的專用linux系統的設計，對linux文件系統進行了詳盡的解析，包括vfs的實現， buffercache的作用等；並對塊設備驅動程序在內核中各個介面進行了分析；解析了內核接收和發送數據包的全過程以及流量控制在內核中的全過程；並對linux系統的一些特殊的機制如等待隊列，任務隊列，時鐘中斷等進行了詳細的解釋。

The modules include the bsp design, the drivers of the periphery hardware ( gpio ， iic ， flash ， tuner etc. ), the mac end drivers ( ethernet, usb, cable ), the message queue control, the bpi +. in addition, because the pieces of safe protocol for data transmission is blank in the cable network data transmission standard that our country will put out, the author gives a security project for the data transmission on the cable networks that is accord with the security standards of china and uses the chinaese ca certificate and security arithmetics and realizes it in the capinfo cable modem

另外，我國將要推出的線纜網數據傳輸規范中關于數據傳輸安全部分是個空白，本文在分析docsis1 . 1中的數據傳輸安全協議bpi +的實現技術的基礎上，給出了一種可以滿足中國國家相關安全規定的cable網數據傳輸安全解決方案（應用中國設計的數字證書和安全演算法） ，並介紹了在我們研發的cablemodem中對此方案的實現。