present value control 中文意思是什麼
present value control
解釋
現時值控制-
At present, our country is the largest producer and consumer in the horniness - alloy scopes. but now, this stove depends on import, hip - sinter stove ’ s self - develop and corresponding control system has important apply value
目前我國是世界上最大的硬質合金生產與消費國，但生產所需的燒結爐仍主要依賴進口，自主研製低壓真空燒結爐及配套的控制系統無疑具有重要的應用價值。 -
Thirdly, gap analysis, duration analysis, net present value analysis and dynamic simulation analysis, these four risk measurement techniques and how to use them are studied. and then, commerce tactics to manage and control interest rate risks and how to use them are researched detailedly. at last, an example which further illustrates how to manage and control interest a rate risks for commercial banks of china is given. interest rate risk management is a complicated job, so commercial banks should choose appropriate skills and measures to control interest rate risk effectively for keeping their earnings free of adverse influence of interest rate changes
本文首先根據巴塞爾委員會制定的利率風險管理的原則和西方銀行業的經驗，對商業銀行所面臨的利率風險進行了具體地識別分析；研究了敏感性缺口管理技術、有效持續期缺口管理技術、凈現值法和動態模擬法這四種商業銀行利率風險的衡量管理技術及其運用；然後對控制利率風險的具體管理策略以及如何運用這些管理策略來控制利率風險進行了詳細地分析研究；利用前面介紹的成果和方法用實例系統地說明了商業銀行應根據自身情況選擇合適的管理技術和策略，有效地控制利率風險。 -
The new method to control birds hazard is put forward by the way of ecological food chain in this article. it has the important value on the construction of new airports and the treatment of birds hazard in the present airports
本研究提出了一種以食物生態鏈方式控制鳥害的新途徑，為我國航空鳥害的防治探索了一條新的途徑，對新機場建設和已有機場鳥撞防治具有重要的參考價值。 -
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。 -
All these have the theoretical meaning and applicable value, and also present useful reference to the slope stability analysis, slope disaster prediction and slope control etc. under unstable seepage
可為非穩定滲流下邊坡穩定分析、滑坡災害預報和邊坡治理等方面提供有用的參考，具有一定的理論意義和使用價值。 -
To standardize thi s means of psc inspection and to increase its vitality and to fulfill the purpose of protecting the life at sea & preventing the sea pollution and also to pursue the value of the relative laws of the port state and the international conventions, the thesis made the following research and study : the stardy on the conventions and resolutions of the international maritime organizations, and choosing the relative clauses and content from the convention which is related to the port state control ; summing up the laws and the procedures on which the port state control was based ; conparison on the application and the limitations of the conwentions in deferent port state ; analysis on the technical specifications of the psc inspection ; discussion on the questions met carrying out the psc inspection ; the duties and the rights of the relative parties under the present psc legal systerm ; discussion on the urgency and necessity of the legislation
本文通過對國際海事組織相關的公約和決議的學習，擇取公約中與港口國監督相關的條款和內容；綜合港口國監督的法律依據，港口國監督的程序；比較各公約在港口國監督實施的適用情況、制約性；分析港口國監督檢查的技術規范；探討研究在實施港口國監督過程中遇到的問題；討論目前港口國監督法律體系相關利益群體的權利和義務；論述港口國監督立法的緊迫性和必要性；以期規范這種監督手段，增強生命力，真廳達到保障海人命安全和聽止海洋污染的l ； l的，追求港！囚監督法規及公約等國際法規的價值。 -
In slope control engineering design, still adopt routine definite value design method at present, which regard design parameter as definite value, has neglected their randomness and variability
在邊坡治理工程設計中，目前仍採用常規定值設計法，把設計參數當作定值來處理，忽略了它們的隨機性與變異性。 -
As the information era proceeds, highly developed digital image processing technique and communication technique make multimedia communication possible, and it is now on the way of progress. video conference have received more attention as an example of multimedia. in this paper we first describe the construction and characteristic of the video conference system and analyze the theory of protocol with itu - t h. 323 recommendation which inculde video and audio codec standard, communication control protocol h. 245. call signalling protocol h. 225, as well as procedures within these protocols define how these components communicate. also an experimental video conferencing system is designed and some relating key technologies are studied, which include multithread programming, transmission technology, mcu technology, qos mechanism and so on. especially, a video codec based on h. 263 recommendation with high fram rate as well as high compression ratio is researched and implemented because of importance of video application, which solves the bad image reconstrction quality problem existed in the most present video systems that adopt h. 261 video compression algorithm. by using these technologies. a video conferencing system is implemented based on lan. the system that the paper provides is easy to implement and the results of exmperiment is good. such system can be widely used in the fields such as business conference, distance education etc. and it is of good practical value
隨著信息時代的前進，數字圖像處理技術和通信技術的高度發展，多媒體通信已成為可能並已初具規模，視頻會議作為它的一個具體應用實例受到普遍關注。本文首先對國際電信聯盟itu - t制定的基於分組交換的多媒體通信h . 323系列建議進行了闡述，其中包括ip網路視頻會議系統的結構組成、視頻傳輸標準、音頻傳輸標準、系統的信息碼流、通信控制協議h . 245和呼叫信令協議h . 225以及會議系統的進行過程。在此基礎上給出了ip視頻會議的實現的整體框架，為系統的軟體實現進行了模塊的劃分和整體設計，分析了各個模塊的功能、作用。 -
After analyzing state - of - the - art of active and semi - active structural control in the world, the dissertation focus on semi - active structural control based on the magneto - rheological dampers. and a semi - active control method is put forward, which is based on lq ( linear quadratic ) optimum control theory, and imitates the optimum active - control force with bound value to control the structural response. then two structural models " simulation is conducted to compare the effectiveness and usefulness of the semi - active control with the passive control, and present the normed criteria to analysis the results
首先分析了mr可控阻尼機理，及mr阻尼器的兩種力學模型；然後根據最優控制理論中的二次型問題，提出採用限值擬合連續最優主動控制力的半主動控制策略，並以此控制方法針對半主動控制的強非線性控制問題，對兩種結構模型進行了模擬計算，並將半主動控制下的結構響應與採用摩擦型阻尼的被動控制結構及無控結構進行了詳細的比較分析，對計算結果提出採用范數指標進行補充評價的綜合評價方法；通過三種控制狀態下的模擬計算驗證了結構半主動控制的有效性與實用性。
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