穩定性常數 的英文怎麼說

中文拼音 [wěndìngxìngchángshǔ]
穩定性常數 英文
stability co tant
  • : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
  • : 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...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : 數副詞(屢次) frequently; repeatedly
  • 穩定性 : antiwhip
  • 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
  1. The distribution of personality types ( the introversive type, the middle type, the low, middle and high psychotic type ) confronts with the normal mode. the students who belong to the middle type account for an overwhelming majority of 85. 25 %

    初中生個的分配(內向、中間型、外向和精神質低、中間、精神質高)與模相符,情緒居中的人占絕大多( 85 . 25 ) 。
  2. We found the model which established by fama and french is suitable for chinese stock market. then we test the so - called ‘ new - year effect ’. we drew the conclusions that the m / l and b / l portfolios have the ‘ january effect ’ and the m / m portfolio has the ‘ february effect ’. the coefficient of three - factor model is an important systemic risk guideline of investment object

    對f / f的三因素模型的應用而言,模型的擬合程度,模型回歸系的顯著以及在動態投資過程中,模型回歸系等對模型的實際應用起到非重要的作用。
  3. So it can be used as both sensor component and driving component. pzt have better electromechanical coupling coefficient, piezoelectric constant, mechanical quality factor, curie temperature and stability, etc. so, pzt can be used widely in smart materials and structure

    與其它壓電陶瓷相比,鋯鈦酸壓電陶瓷( pzt )有較好的機電耦合系、壓電、機械品質因、居里溫度和等,因此, pzt能廣泛應用於智能材料結構中。
  4. Using the advanced technology by its head office ( newkey co., ltd. ), it produces various kinds of alumina black and white ceramic products. the component alumina ceramics, which are widely used in electron components, devices, electrical products, enjoy low loss of high frequency, high insulating strength, good specific volume resistance, small dielectric constant, high mechanical intensity and excellent airtightness and thermal and chemical stability

    本公司根據目前市場需求,生產出各種型號的黑、白陶瓷產品,廣泛應用於電子、電工、化學工業、紡織工業、水暖、宇航、環保等諸多方面,系列產品有高頻損耗少,比體積電阻大,介電小,強度高,氣密、熱、化學好等特點。
  5. This low time constant is consistent with the stability requirements of close-loop control systems.

    這低時間是符合閉迴路控制系統中的要求的。
  6. In nature conditions, without the injection of the extraneous hormone, the females and males of f _ 9 - f _ 12 could mate each other to produce new next generation of tetraploids. with the stable genetic tetraploidy and the fertility in the nature environments, this allotetraploid population possessed the key factors to form a new species with 200 chromosomes

    F _ 9 ? f _ ( 12 )染色體目的和正腺結構以及自然條件下的生殖傳代行為,說明該異源四倍體鯽鯉已成為一個染色體目為4n = 200 、遺傳的新型四倍體魚群體,具備形成一個新的種群所需的關鍵因素。
  7. In the second section of chapter 2, the fact that the essential interest rates of all nodes differ from each other is discussed, a non - homogeneous differential equation model of interest rate - amount of circulating fund is established, and it is proved that the sum of the weighted interest rates of each node in the financial network still remains a constant and that the difference of the instant interest rates between two nodes will finally approach the difference between their basic interest rates. in the third section of chapter 2, the differential equation model of interest rate - amount of circulating fund in an open system is studied, the laws of changes of interest rate are taken into account when fund is injected into or withdrawn from the node or when fund is injected into the network or withdrawn from the network, and the stability of equilibrium solution is proved based upon lyapunov stability theory. in the last, the equation model of interest rate - amount of circulating fund in the financial network with time delay is studied, and a necessary and sufficient condition for the existence of periodic solution is obtained to the interest rate - amount of circulating fund equation with delay

    本文第二章首先建立了封閉系統的利率?流通量微分方程模型,證明了各結點利率加權和為即金融市場利率均衡原理,以及各結點利率極限為整個網路平均利率;其次在各結點基本利率不相同的情況下,建立了非齊次利率?流通量微分方程模型,證明了金融網路各結點利率加權和仍是一個,並證明了各結點兩兩之間的即時利率之差最終將地趨于其基本利率差;此外,還研究了開放金融網路利率?流通量方程模型,考慮了結點自身追加資金和提走資金的情形以及網路外部注入資金和向外部轉移資金情形下的利率變化規律,用lyapunov理論證明了模型均衡解的;最後,還研究了具有時滯的金融網路利率?流通量方程模型,並給出了具有時滯金融網路的利率流通量方程具有周期解的充要條件。
  8. The loss will be decreased by using single - mode fiber or poledzation holding fiber in recent work we measured the verdet constant of the samples and tested the chederistic of magnetic - optical glass bare fibel then, we analyzc the resource of ermrs, which are coupling effect, stability of the light source, polarizers, defects of the magnetic - optical glass flber and coupling effects between different modes

    採用單模光纖或偏振保持光纖將降低損耗。論文測試了樣品的費爾德,研究了磁光玻璃裸光纖的偏振特。分析了誤差的主要來源:耦合效果、光源的、偏振片對光路的影響、裸光纖自身缺點和模式耦合的影響。
  9. These problems boost the study of high - k materials as the alternatives of sio2 gate dielectrics. among all high - k gate dielectric materials, hafnium oxide ( hfo2 ) is being extensively investigated as one of the most promising candidate materials due to its superior thermal stability with poly - si, biggish constant and reasonable band alignment. our researches focus on hfo2 dielectrics

    高k柵介質材料已經被廣泛地研究來替代sio _ 2 ,以降低柵泄漏電流和改善可靠,其中, hfo _ 2由於其較大的介電、較大的禁帶寬度、與si的導帶和價帶較大的偏置、以及與si的高的熱力學等特徵,被認為是最有希望的替代sio _ 2的柵介質材料之一。
  10. In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data

    為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非頻譜特變化規律,並耦合進氣畸變的影響,同時與壓氣機氣動能和氣動相關聯,作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機( lsc )試驗器,採取在靜子葉片表面埋入動態壓力傳感器的實驗方法,對葉尖、葉中和葉根三個截面的動態壓力進行了測量,獲得了大量的可靠的實驗據。
  11. The simulation results show that the controller is available in improving the control effect, and it can save energy than traditional tower fan sequencing control strategy

    結果表明該上位機控制器具有較好的控制,並且比規的風扇轉速及臺控制方式更節能。
  12. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的學模型,並將擴展的dfl理論應用於此模型系統,結合線二次型最優控制理論設計出大型汽輪發電機的非線綜合控制器及機端電壓最優控制器,通過模擬實驗與採用規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態,並且在電力系統遭受小干擾時同樣具有良好的調節能。
  13. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容:一、選取了見的熱膨脹系大的材料製作封裝元件,經過多次一80到80反復測試,封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷,封裝材料具有良好的溫敏及復用,與光纖相容較好;二、對光纖光柵進行簡單、實用的封裝處理,就封裝效果的優劣、波長測量的準確度、重復和封裝時產生的波長損失等方面進行了一系列的實驗,得出了初步的結論;三、對溫敏和溫度補償式封裝的實驗據進行了詳細的分析和對比,從字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了量的分析,在大量實驗據分析結果的基礎上,總結出哪種材料封裝效果更好,以及如何有效的減小實驗誤差。
  14. Featured by wide band gap, high breakage electric field, high electron mobility, low dielectric constant, strong irradiation proof and excellent chemical stability, silicon carbide ( sic ), viewed as one of the most promising wide band gap semiconductors, is widely utilized in optoelectronic devices, high frequency and large power, high temperature electronic devices

    被譽為最有潛力的寬禁帶半導體材料一sic ,因其具有禁帶寬度大、擊穿電場高、熱導率大、電子飽和漂移速度高、介電小、抗輻射能力強、良好的化學等優異的特,被廣泛地應用於光電器件、高頻大功率、高溫電子器件。
  15. Tantalum oxide ( ta2o5 ) attracts more attentions because of its high dielectric constant, stable thermal and chemical properties. it might become the most promising candidate high constant dielectric thin films applied in industries

    氧化鉭薄膜( ta2o5 )因為具有高介電和良好的熱、化學,成為最有希望獲得實際應用的介電膜。
  16. Classical constant temperature was used comparing with the variation of consistency and the constant of reactive rate in different temperature. the results indicated that the stability of volatile oil in inclusion compound was obviously superior to that of original volatile oil

    採用經典恆溫法考察了艾葉揮發油- -環糊精包合物在不同溫度條件下的濃度變化及反應速度,結果表明,經-環糊精包合后,艾葉揮發油的得到了提高。
  17. The geologic condition in mountainous district is complex variable, in different geologic, it is very difficult to find the most economically design scheme. stability of 14 high - cut slopes in guangdong province is analyzed with typical rock mass structure analysis method and stereographic projection method, and with the numerical simulation method udec this paper simulated the excavation and reinforcement courses of the important slopes. some conclutions and suggestions are based the analysis above

    本文結合廣東某省道沿線14個高陡巖石邊坡的開挖和支護方案的選擇設計,運用用的巖體結構分析方法和赤平投影方法對邊坡的進行了分析,採用udec值模擬方法對一些重點邊坡的開挖支護進行了模擬,得出了以下一些結論: 1 、邊坡支護形式的選擇應遵循「安全綠色、水土保持、恢復自然、環保之路」的設計原則。
  18. Associated with a project of the planned xuefengshan tunnel with 7. 6 km long during the construction of shaoyang to huaihua expressway in hunan province of shanghai to ruili national trunk highway, this paper firstly makes an introduction of the frequently - used analysis & computation methods for tunnel supporting structure. then, based on the analysis of the basic theory about the interaction mechanism of surrounding rock and support structure, a spatial computation model is made, a coupling numerical computation method with 3 - d elastic - plastic finite element and infinite element is proposed, and a comprehensive analysis has been made to the effects of the overall stability and safety of the surrounding rocks of different characteristics, different classes and under different construction methods. and thus the problem of 3 - d infinite region to which applying the general finite ca n ' t do has been resolved

    6公里的雪峰山隧道工程,首先介紹了隧道支護結構的用分析計算方法;然後通過對隧道施工過程中,洞室與支護結構相互作用機理的深入分析,建立了隧道施工過程的空間計算模型,提出了採用三維彈塑有限元-無限元耦合的值計算方法,綜合分析了隧道在不同圍巖特和圍巖類別條件下,以及不同施工開挖方案等對隧道圍巖整體和安全的影響,從而解決了通用有限元方法難以解決的隧道三維無限域問題;其可充分發揮有限元法在分析非線方面的有效和成熟,以及無限元法在分析處理無限域和半無限域方面的精確和簡便,為隧道施工過程中圍巖的分析開辟了一條新的途徑。
  19. The innovations consist of : synthetically restraining the filter ' s divergence, as effectively improved the filter ' s numerical stability ; a parallel filter structure is creatively designed to eliminate system biases ; and sprt method is used to control the adjustment of the noise statistics, so as to ameliorate the tracking performance of time - variant noises

    規的次優遞推sage自適應濾波器進行了改造,包括:對濾波結果發散進行綜合抑制,提高了濾波器的;採用并行結構,消除了結果偏差;應用sprt控制調整,增強了濾波器的動態跟蹤能力。
  20. This kind of homogenization is very important to the investigation of concrete structures and numerical analysis of engineering. but it is difficult to use these models to study the complete failure process caused by the initiation, propagation and coalescence of cracks when subjected external loading

    這種簡化對于研究混凝土工程結構及進行值分析是非必要的,但是卻難于研究混凝土材料在外荷載作用下裂紋萌生、擴展及貫通而導致的由細觀層次到宏觀層次的損傷和斷裂過程。
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