靜態不安定性 的英文怎麼說

中文拼音 [jìngtàibùāndìngxìng]
靜態不安定性 英文
spiral instability
  • 靜 : Ⅰ形容詞1. （安定不動; 平靜） still; calm; motionless 2. （沒有聲響; 清靜） silent; quiet Ⅱ名詞（姓氏） a surname
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 靜態 : [物理學] static state; quiescent condition; steady state; statics; dead level; akinesis; akynesis...
  1. Firstly, the status of our nation ' s water resources, flood and arid hazards is overviewed to illustrate the necessity for study on dynamic control of flood season limited water level. disadvantages in traditional limitsd water level design, static control of limited water level design, static control of limited water level and fuzzy limited water level curve are pointed out, and mending methods for these are introduced. dynamic control and its key problems are analyzed hi next section. the allowable range of limited water level is determined, so as the allowable extreme risk index. the definition of extreme risk is re - illustrated, risk analysis methods in reservoir operation is discussed either. according to the definition of extreme risk rate, the allowable extreme risk rate of reservoir is systematically demonstrated with variant extreme risk indexes and flood season limited water level

    本文首先闡述了我國水資源狀況和水旱災害、說明水庫汛期限制水位動態控制研究的必要性；介紹了傳統汛限水位設計、汛限水位靜態控制、模糊汛限水位過程線存在的問題及其初步改進方法；分析汛期限制水位動態控制的方法及關鍵問題；進一步闡述了水庫極限風險率的定義；根據極限風險率定義，詳細敘述了不同極限風險指標時、不同汛期限制水位下起調，水庫所能承受的極限風險率計算方法。然後，基於極限風險率計算方法，以白石水庫為背景，研究「考慮壩體自身安全、考慮壩體安全與下游防護對象控制下泄流量的汛限水位動態控制的極限風險率」 。
  2. The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed

    本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。
  3. Stochastic and uncertain performance of power systems is thoroughly studied with a probabilistic simulation method in this paper. based on modeling of element failure and dispatching measures, static, dynamic and integrated securities are analyzed, and hence operation states are quantitatively classified. in probabilistic static security assessment, sequential and non - sequential monte - carlo sampling techniques are applied considering time varying parameter and constraints

    本文採用概率模擬方法，深入研究了電力系統運行中的隨機和不確定特性，在對元件隨機故障和調度控制措施建模的基礎上，對系統的靜態安全、動態安全和綜合安全進行概率評估，建立了電力系統運行狀態的量化分析模型。
  4. If the permission state used in the imperative demand, link demand, assert, permit only, or deny can be determined statically, and it is certain to be not dependent on any state available only at run time, then the effect of such security action on application assemblies can be determined and is calculated for the effects of declarative security actions on the minimum grant permission set of all profiled assemblies

    如果可以靜態確定在命令性要求、鏈接要求、斷言、只允許或拒絕中使用的權限狀態，並且確認該狀態不依賴于運行時的任何可用狀態，則可以確定此類安全操作對應用程序程序集的影響，並可以計算出聲明性安全操作對所有已配置程序集的最低授予權限集的影響。
  5. But the traditional static design method is based on statics and seldom contains guidelines for incorporating the dynamic behavior of the moving belt. large safety factors are employed to accommodate most dynamic stresses in the belt. this can not only increase total cost but also give rise to system instability and higher dynamic stresses that can damage the belt, drums, idlers, bearings and other parts of the conveyor

    在高速情況下，帶式輸送機存在的主要問題之一是起制動過程中輸送帶的動張力問題，而傳統的靜態設計方法將輸送帶視作剛體，並且在靜力學基礎上按靜止或勻速運行狀態對輸送機系統進行受力分析和參數設計，將動張力以一定系數計入，用加大安全系數方法提高設計可靠性，這不僅會使帶式輸送機的成本提高，還可能引發起制動過程中較大的輸送帶動應力及運行過程中的不穩定性，從而導致輸送帶接頭的失效及滾筒、托輥、軸承乃至其它部件的損壞。
  6. Main content of " hef ( high efficient firewall ) firewall realize mode study " have : ( 1 ) emulation experiment and ipv6 / tunnelbroker model set up through transproxy, explain transproxy method, improved structure of rfc3053 emphatically, act for technology about solution of efficiency, make their suitable for different need of isp of scale ; ( 2 ) on the basis of analysing ipsec agreement security question, to isakmpsa varying load attacks and improves in consulting, carry on form analyses, proved, design vpn high - efficient safe model based on ip / ipsec concept finally ; ( 3 ) on the basis of ids dynamic characteristic of system, for remedy firewall static deficiency of defence, design one method that the two combine, offer a good foundation for high - efficient online security system ; ( 4 ) through theory design and emulation experiment, the above - mentioned three part can make and imbed fire wall of the system for module, offer certain theoretical foundation to domestic fire wall design of product

    《 hef （ highefficientfirewall ）防火墻實現模式研究》的主要內容有： （ 1 ）通過transproxy模擬實驗及ipv6 / tunnelbroker模型建立，著重闡述transproxy方法、改進的rfc3053的結構，以及代理技術中有關效率的解決方案，使之適用於不同規模的isp的需要； （ 2 ）在分析ipsec協議安全性問題基礎上，針對isakmpsa協商中的變換載荷攻擊做出改進，並進行形式化分析、論證，最終設計出基於ip / ipsec概念的vpn高效安全模型： （ 3 ）基於ids系統的動態特性，為彌補防火墻靜態防禦的不足，設計出兩者聯動的方法，探索了高效網路安全體系模式研究的新方向； （ 4 ） hef防火墻實現模式的理論研究及模擬實驗，所得三部分研究結論均可設計出module ，內嵌入防火墻系統中，為國內防火墻產品的設計提供了一定的理論基礎。
  7. Excellent excitation controller system not only could guarantee the generator running safely, offer qualify electric power but also could enhance the static stability and transient stability of the electric power system

    優良的勵磁控制系統不僅可以保證發電機安全可靠運行，為電網提供合格的電能，而且能夠有效地改善電力系統靜態與暫態穩定性。
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