正穩性 的英文怎麼說

中文拼音 [zhēngwěnxìng]
正穩性 英文
positive stability
  • : 正名詞(正月) the first month of the lunar year; the first moon
  • : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  1. To attain the high - power, well - proportioned and steady high - energy particle beam is the base of analyzing beam loss. the factors that influence the emission performance of the filament are analyzed, and the parameters are calculated. the experiment results proved the correctness of analyses

    獲得大功率、均勻、定的高能粒子束是進行束流損失分析的基礎,本文分析了影響燈絲發射特因素,對燈絲各參數進行了設計計算,實驗證明了分析的
  2. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制理論的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的,同時設計了系統的校網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。
  3. Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100

    論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上,簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理,對兩種測量方法存在的問題及誤差進行詳細分析和比較;針對位相解包裹錯誤點的傳播問題,作者通過改變解包裹路徑來提高位相解包裹的;分析討論從解包裹位相( x , y )到再現物體的高度h ( x , y )物理量之間的關系,研究相應的演算法,利用matlab平臺,對實際採集的條紋圖像進行處理和輪廓重構,其中改進及創新工作主要表現在以下兩個方面: ( a )針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響,提出了一種用條紋定器定干涉條紋,用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法,建立了相應的測量系統,系統的條紋定可以達到。
  4. At first, the general theory of synthesis angular acceleration and velocity with linear accelerometers is researched and proved in this paper. on the foundation of analyzing the applied barrier in platform stabilized system of angular locomotion, a new method that changes the installation structure from alterable space into plane, is put forward to solve the problems, so that the application of this theory in moep becomes possible

    本文首先對線加速度合成角速度、角加速度的一般理論進行了研究,從理論上證明這一方法的,為進一步深入研究奠定了理論基礎;在此基礎上,本文分析了角運動合成一般方法在平臺定系統中應用存在的困難,在此基礎上提出了一種改進方法;這種方法的特點是變空間結構的安裝方式為平面結構,使角運動合成理論在工程實踐中應用成為可能。
  5. Arid the result is verified by the direct numerical integration

    並應用直接積分法對邊界的進行驗證。
  6. Using the simulation calculation procedure imitate calculating vibration of the driver seat in sample car, the center of the compartment, distance 300 mm of the backboard of the compartment. the result of calculation and experimental result are relatively well identical. have shown the exactness of the vehicle vibration models that are set up and validity of the vehicle vibration simulation calculation procedure

    用該程序對樣車的司機座椅、貨廂中心、距貨廂后板300mm三處的振動進行了模擬計算,計算結果與實驗結果基本合,表明了所建立的車輛振動模型的和車輛振動模擬計算程序的有效
  7. Considering the characteristic of vibration of rotary machines, this thesis makes a thorough discussion of forecasting the trend of vibration by a means of time series model, puts forward means of processing the nonstationarity, nonnormality and singular value of the field data and distinguishing their models to build a appropriate model and gets precise mulstep forecast to the trend of vibration

    針對旋轉機械的振動的特點,本文深入討論了利用時間序列模型預測振動趨勢的方法,並提出了如何處理現場數據的非平,非,奇異值和模型類型判別方法,以構建合適的模型,實現對振動趨勢進行準確的多步預測。
  8. Based on the design load and the whole stability of the link, a better method of reinforcement is obtained in the paper combining with the practice of project, and the validity of this method is verified by adopting the program of finite element

    摘要根據設計荷載,抱桿在滿足整體的前提下,結合工程實踐選擇較好的加固方案,並採用有限元程序對加固方案進行驗算,驗證所採用方案的
  9. A copper refine copany ' s high temperature exhaust blower which can ' t work safely was studied and optimization designed, the operation of the rotor substantially was improved ; the rotor dynamic characteristic was analyzed during reconstructing

    摘要針對某銅業公司高溫排風機不能常安全運行開展了系統研究與優化設計,從根本上改善了該高溫風機轉子平;改造過程中還首次對高溫風機轉子動力特進行分析。
  10. In allusion to the coning motion of parachute systems in steady decent, the impact of several factors upon the motion forms of the system are discussed, and the influence of the different aerodynamic parameters on the system ’ s coning motion are analyzed significantly. on the base of these, theoretical formulae of the system ’ s steady coning motion are deduced to validate the model ’ s correctness

    針對降落傘系統在定下降過程中的錐擺現象,討論各種因素對系統運動形式的影響,著重分析了不同的氣動參數對系統錐擺運動的影響,在此基礎上推導出系統定錐擺運動的理論公式,驗證模型的
  11. The geometric explanation of the image principle presented in “ a new method to determine the transient stability boundary using nonlinear theory 1 is given. a theorem to determine the critical clearance time is derived. from the calculation results of two examples, the correctness of the theories put forward by this paper and paper 1 is verified

    對論文《運用非線系統理論確定電力系統暫態定域的一種新方法》 1中所提出的映射機理作了幾何解釋;提出了確定電力系統臨界切除時間的定理;通過對一簡單電力系統和電科院6機22節點算例的計算,驗證了本文及文1所提出的理論的
  12. Meanwhile, the working condition of yanmar combine harvester is very foul, so the system is prone to be disturbed. interference - free measures are taken on hardware such as optoelectric coupling, earth, screen and filtering. and measures on software such as watch dog circuit and digital filter were taken too

    同時,洋馬聯合收割機工作環境惡劣,很容易受到各種干擾,本系統採用了光電隔離、接地、屏蔽、濾波等硬體措施,以及看門狗電路、數字濾波等軟體措施,有效的降低了干擾,保證系統能常工作,保證了檢測結果的
  13. Abstract : the sample breakdown point of a test is defined as the smallest proportion of arbitrary outlier in the sample that reverses the test decision. in this paper, wegive the sample breakdown point of a test for maximum likelihood estimate of exponential distribution parameter and analyze the asymptotically normal characteristic of the sample breakdown point

    文摘:如何量化一種統計方法對異常值的不敏感一直是健統計研究的一個重要課題.檢驗的樣本崩潰點是樣本中能逆轉判決的離群值的最小比例.在研究相關文獻的基礎上,計算出指數分佈參數極大似然估計檢驗的樣本崩潰點,並分析了樣本崩潰點的漸近,為量化統計方法的提供了一種新的途徑
  14. The shear strength indexes of and c were obtained for these two embankments, and they demonstrated the reliability of thrust and sliding equilibrium method used to analyze the stability of embankment

    在計算過程中提出4點基本假設,經過現場試驗數據計算分析,論證了假設的成立和推滑平衡分析法應用於填石路堤的,並通過比較得出灰巖作為材料使填石路堤邊坡更為定的結論。
  15. This article uses the modem consumption theory to study chinese fanner ' s consumer behavior and sets up error - correction model as econometric model on the basis of implementing stationarity test to the data of the model, and concludes that the uncertainty, excess sensitivity and the fanner ' s life - cycle characteristic are important factors to affect fanner ' s consumer behavior

    摘要本文運用現代消費理論對中國的農民消費行為進行研究,在對模型的數據進行平檢驗的基礎上,建立誤差修模型作為計量模型,認為農民面臨的不確定、農民消費的過度敏感和農民消費行為的生命周期特徵是影響農民消費行為的重要因素。
  16. The piezoelectric actuator becomes one of the most prospective components because of its outstanding advantage. but the hysteresis and creep character of the material restrict the development of this actuator. new stable characteristic tungsten bronze piezoelectric actuator was adopted as driving component in this article, we develop the anti - hysteresis control method through contrasting the crystal structure of the tungsten bronze actuator with which of the perovskite actuator, at the same time corresponding software and hardware were studied in order to prove the validity of this control method, and then demarcated the other characters of the actuators through lots of experiment results

    本研究選用了定的硬鎢青銅型壓電陶瓷驅動器作為驅動元件,從壓電陶瓷驅動器遲滯產生的微觀機理入手,通過對比硬鎢青銅型壓電陶瓷驅動器和軟鈣鈦礦型壓電陶瓷驅動器的晶體結構,研製出壓電陶瓷驅動器抗遲滯驅動方法,設計了相應的軟硬體裝置以從實驗結果上證明這種方法的,並對其他影響定位精度的因素進行了特標定實驗。
  17. Stability and strict positive realness of convex polytopes of interval polynomials

    多項式凸多面體的及嚴格
  18. Presents the study on the cross - effect of heat and mass transfer of capillary porous media a. b. luikov set up on the irreversible thermodynamics principle with the theoretical solution of unsteady drying process given and its validity verified though experiments, and analyses using the mathematical model the influence of all factors on temperature and moisture distribution and the cross - effect of heat and mass transfer during drying processes

    針對雷柯夫建立在不可逆過程熱力學原理上的傳熱與傳質方程組,著重研究毛細多孔介質內傳熱與傳質過程中的交叉效應.得出了非態乾燥過程的理論解,並通過實驗驗證了其,利用該模型分析了乾燥過程中各因素對內部溫度場和濕度場的影響以及交叉效應在乾燥過程中的作用
  19. According to the requirements of amendments to the international convention for the safety of life at sea, 1974 ( solas, 1974 ) - safety measures for bulk carriers and the regulations on subdivision and damage stability of cargo ships, the condition of equilibrium and subdivision index after the foremost cargo hold flooded for five bulk carriers are calculated and checked ; the cause that do not satisfy the requirements is analyzed and the reconstructing measures and suggestions for designing a new ship are given in this paper

    根據solas修案散貨船的安全措施及貨船分艙和破艙的各項條款的要求,計算並校核了五條散貨船第一貨艙破損進水后的平衡狀態和船舶分艙指數,分析了不滿足要求的原因,探討了具體的改造措施,提出了新船設計的建議
  20. After the comparison of the stability checking computations and the section categorised situation both at home and abroad the current standard, some problems was discussed in the standard of our country. contraposed these questions, the paper computed the space stability coefficient of some general t - shaped and l - shaped sections and all the sections of t - shaped, l - shaped and 2 - angle iron t - shaped in the formed - steel - table, and worked out the curves. according to the comparison of the curves the paper got and the curve in the standard, some simple conclusions was put

    對國內外現行規范軸壓柱定驗算方法及柱子曲線截面分類情況進行了對比,討論了我國規范曲線中存在的一些問題,並針對這些問題,以規范初始彎曲值對任意「 t 」形和「 l 」形截面和型鋼表中所有t型鋼、 l型鋼、雙角鋼t形鋼截面的空間定系數進行了計算,作出其與規范曲線的比較圖,通過計算結果的分析對各類截面歸類情況作了簡單的評述,其中提出的一些建議可以作為規范修訂的參考依據;同時,這些計算結果也進一步證明了本文的柱子空間定分析方法的
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