終點空化數 的英文怎麼說

中文拼音 [zhōngdiǎnkōnghuàshǔ]
終點空化數 英文
desinent cavitation number
  • 終 : Ⅰ名詞1 （最後; 末了） end; ending; finish 2 （指人死） death; end 3 （姓氏） a surname Ⅱ形容詞（...
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 終點 : 1 （一段路程結束的地方） terminal point; finishing point; destination 2 [體育] finish; 終點裁判員...
  • 空化數 : cavitatio umber
  1. With analyzing of the case study and based on simulating and analyzing quantitatively, this article, considering the goal of the performance - based fire - protection design is protecting occupants from being injured and keeping buildings from being damaged, thought that fire compartmentation of a large building of saling books can be divided according to their saling malls and fire compartmentation in the saling mall can be separated by the fire - proof screen. on the evacuation design, the quantity of safety exits around these buildings and the evacuation width should be increased if possible and the safety exit number, exit width and evacuation distance can be determined according to the simulating results on smoke layer temperature and height, concentration of co2 and co, occupants evacuation time and visibility. on the means of preventing and discharging smoke, the most proper measure should be determined according to their geometrical characteristics and the natural means of discharging smoke is feasible to the large building of saling books. based on analyzing of smoke

    通過對案例分析研究，本文認為大型書城建築性能化防火設計研究的最終目的是保證人員生命安全和保證建築結構安全，在模擬計算和量化分析的基礎上，大型書城的防火分區可以將中庭連通的書城區域劃分為一個區，在書城場地內可以採用防火卷簾進行防火分區劃分;在人員疏散設計中，應盡可能利用書城賣場的空間設計較多的安全出口和增大疏散寬度，其安全出口數量、寬度和疏散距離可以根據人員安全疏散時間和煙氣溫度、沉降高度、 co2濃度、 co濃度、能見度模擬計算結果驗證確定;在防排煙方式的選擇上，應當根據建築物的幾何特點選取最適宜的措施，就大型書城建築而言，採用自然排煙的方式是可行的。
  2. The theoretical results showed that point spread function ’ s distribution and the stray light mainly influenced the space resolving power and the measurement precision of the temperature measurement system, so we supposed some methods, which can improve the space resolving power, and the results proved the space resolution improved from 37 m to 16 m. 2. having made the space resolution come to 16 m, in order to improve the space resolving power more, we used image reconstruction method to reconstruct the

    利用這兩種方法，可以將測得的溫度場分佈中被點擴展函數卷積鈍化掉的部分復原回來，實驗測得微小面元溫度分佈在復原后溫度最高值高於復原前最高值，且分佈曲線變窄，較好地提高了系統的空間分辨能力，最終得到真實溫度分佈的最佳估計。
  3. And improving air traffic control facilities cannot readily solve the problem of air traffic increase. instead, new ways should be found in modifying the ways of air traffic control by creating mathematics models for airport, terminal area, air route and plane flow and optimizing air route and procedure of air traffic control

    僅僅通過空中交通管制設施的改善已經不能作為提高空中交通流量的主要增長點，而應從空中交通管制方式入手，建立機場、終端區及航路飛機流的數學模型，對航線航路交通流量和管製程序進行優化，以便最有效的利用空域資源。
  4. But, pso convergence ' s speed become slow in latter iterative phase, and pso is easy to fall into local optimization. at present, some scholars improve base pso mostly using 3 methods : disperse algorithm, increase convergence speed, enhance particle ' kinds. in the paper, i put forward 2 methods aiming at local best resutl but not whole best result. i modify base pso using the last method. some scholars put forward times initializations, so i select best result after circulating some times to be a parameter of formula. first, put particle into some small region, and ensure every region having one paticle at least. second, every region ' s particle has probability transfer other regions. although increase running time, enhance particle ' kinds, decrese the probability of convergence far from whole best result. nerms ( network educational resource management system ) is one of the research projects in the science and technology development planning of jilin province. the aim of nerms is to organize and manage various twelve kinds of network educational resources effectively so that people can share and gain them easily and efficiently, so as to quicken the development of network education

    但粒子群演算法仍存在如下不足:首先在多峰的情況下，粒子群有可能錯過全局最優解，遠離最優解的空間，最終得到局部最優解;其次在演算法收斂的情況下，由於所有的粒子都向最優解的方向群游，所有的粒子趨向同一，失去了粒子間解的多樣性，使得後期的收斂速度明顯變慢，同時演算法收斂到一定精度時，演算法無法繼續優化，本文對原始粒子群演算法提出了二點改進方案: 1 .演算法迭代到一定代數后，把此時找到的全局最優解當作速度更新公式的另一參數（本文稱之為階段最優解）再進行迭代; 2 .每次迭代過程中除最優解以外的每個粒子都有一定概率「變異」到一個步長以外的區域，其中「變異」的粒子在每一維上都隨機生成一個步長。
  5. Its main characteristics include the following parts : ( 1 ) the trait of matching of network, as it manages the information of peers by grouping according to their location in the internet ; ( 2 ) easy to implement, as it distributes the video data according to the need of peers, and does not have to maintain a complex global structure ; ( 3 ) robust and resilient, as it can adapt the complex and dynamic environment of network very well ; ( 4 ) good expansibility, as it has better performance with the increase of users ; ( 5 ) high utilizing of bandwidth, as it can control the peers according to the change of bandwidth of them and make good use of their bandwidth ; ( 6 ) low delay of peer to peer, as it considers the delay among peers sufficiently besides the bandwidth, and makes the delay of peer to peer is low

    該視頻流媒體網路模型在網路帶寬效率、延遲和可靠性之間做出了很好的平衡，它的主要特點有: （ 1 ）網路匹配特性，使用終端用戶的網路位置信息來對節點進行分組管理，對節點間的鄰近度進行優化; （ 2 ）易於實現，根據數據的流向來分發視頻流媒體數據，不需要維護復雜的數據結構; （ 3 ）適應性強，能很好的適應復雜變化的網路環境; （ 4 ）擴展性好，加入視頻流媒體網路中的用戶越多，性能越好; （ 5 ）帶寬利用率高，及時對每個節點的帶寬變化情況進行控制，充分利用空閑帶寬; （ 6 ）端對端延遲小，通過在帶寬和延遲之間達到平衡使得端對端延遲減小。
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