階極點 的英文怎麼說

中文拼音 [jiējídiǎn]
階極點 英文
n-fold pole
  • 階 : 名詞1. （臺階） steps; stairs 2. （等級） rank 3. [醫學] （耳蝸的三個螺旋管的任一個） scala 4. [數學] order 5. [地質學] stage
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 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「、」）...
  • 極點 : 1 （頂點） limit; top; apotheosis; perfoot; the extreme; the utmost; culminating point; [數學] ve...
  1. Using paralled mathematic induction method ， it proved that maximum plane graph with any degree which is contructed by way of " adding point within plane " or " adding point at the edge " is 4 - colorable

    運用「并行（或平行）數學歸納法」證明了由「面內加點」或「邊上加點」方法所構造的任意階極大平面圖是可四著色的。
  2. The results reveal that calculation errors can be reduced with the linear expending nodes, which can be found out by anti - inference method, decided on the limiting equilibration surface based on the advance losm method

    結果顯示，用改進一次二階矩法將線性展開點（可用反演算法求得）選在極限平衡狀態面上，可減小計算誤差。
  3. Based on these algorithms, and consider the property of the arc image, we proposed a new multi - stage algorithm. the proposed algorithm involves the class separability criterion in pattern recognition, and double - threshold method and non - maximum suppression proposed in canny operator. we apply this algorithm to the arc image, and get a better result

    並在這些演算法的基礎上，基於電弧圖像的特點，提出了一種改進的多階段邊緣檢測演算法，這個演算法中應用到模式識別中的類別可分離判據的理論，並使用了canny演算法所中提出的雙閾值法和非極大值抑制方法等等。
  4. The main idea of this thesis is : social practice is imperative to university students, social practice is maturing step by step after the reforming and opening - up, the experience of university and college is that we must establish and perfect the education system with activity and we must stick to the communality between cultivation and social profits. in the new stage and new century, social practice in university and college will be socialized, specialized, varied and regulated by law

    主要觀點是：高校開展社會實踐活動的理論依據，對大學生成才的積極作用；改革開放以來高校社會實踐活動的發展是逐步走向成熟的；高校組織社會實踐活動的經驗是要在活動中重視人才培養效益，促進社會效益，要精心組織和合理安排，要建立和完善活動中的教育機制；新世紀新階段高校社會實踐活動的發展趨勢呈現出社會化、專業化、多樣化和法制化的趨勢。
  5. Based on the pseudo - static experimental results of nine abnormal joints, the damage process of abnormal joint is divided into four stages of original crack, entire crack, ultimate state and failure, the effect of axial force ratio, stirrup ratio and height of column section on seismic behavior of abnormal joint are discussed, the conclusion that anti - shear capacity of abnormal joint are studied in entire crack state by studying the minor core of abnormal joint is made, the calculating formula for anti - shear capacity of abnormal joint is proposed with a view to asymmetry in stirrup yield

    摘要根據9個鋼筋混凝土框架異型節點試件的擬靜力試驗結果，指出異型節點受力過程分為初裂、通裂、極限和破壞4個階段；討論了軸壓比、節點核芯配箍率、柱截面高度變化對異型節點抗剪性能的影響；提出應考慮節點核芯區箍筋屈服的不均勻性並在通裂狀態下以「小核芯」為分析單元來研究此類節點抗剪承載力的建議；最終給出了異型節點抗剪承載力的計算公式。
  6. I enjoyed three whole days of meditating, reading, learning and watching master s videos in the embrace of her wisdom and love, along with copious amounts of delicious food and cakes, advanced tai chi exercises, and plenty of hearty laughter

    三天的快樂時光中，在充滿智慧與愛力的修行氣氛下，大家一起打坐學習閱讀教理看師父錄影帶，享用了許多美味的食物和糕點，並學到進階的太極拳，歡樂的笑聲洋溢整個小中心。
  7. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  8. Though much progress has been achieved in previous study, there still remains a lot to be studied and perfected. the thesis is devoted to study on the multi - ribbed slab wall, the main bearing member in mrss, including its mechanism, failure mode, aseismic capability, mechanical models, ultimate bearing capacity and aseismic design based on control. the paper mainly accomplished such work as follows : 1 ) based on test research on multi - ribbed slab wall, the paper proposed the member ' s failure modes under horizontal loads, analyzed the co - performance between the inner frame and the infilled silica bricks and that between the slab and the outer frame, discussed the wall ' s bearing capacity, rigidity, deformation, ductility and energy dissipation ability in different modes, and put forward a simplified mechanical model of the slab wall under vertical loads

    本文針對密肋壁板結構的主要受力構件? ?密肋復合墻體為研究對象，就其受力機理、破壞模式、抗震性能、三階段力學模型、極限承載能力以及基於控制的抗震設計方法等進行了較為詳細的研究，完成的主要工作有： 1 ）通過對密肋復合墻體在水平低周反復荷載和單調荷載作用下的試驗研究，提出了墻體的主要破壞模式；分析了框格與內部填充砌塊、墻板與外框的共同工作的受力特點；探討了不同破壞模式情況下墻體的承載能力、剛度、變形、延性、耗能等抗震性能，並給出了豎向荷載作用下密肋復合墻體的簡化力學模型。
  9. The second part brings forward a new ar - model - based arm detection method based on features of arm and characteristics of velocity and acceleration of the radar echoes. by establishing two - order ar models, this new detection method computes the poles of models representing different targets, thus estimates the acceleration of the targets so as to determine the nature of the targets. furthermore, this method can not only be applied when the arm is being tracked by radar, but also be put into use in radar ’ s seeking and scanning times

    第二部分則是根據反輻射導彈（ arm ）的特點及其雷達回波信號中速度、加速度等特徵，提出了一種新的基於ar模型的arm檢測演算法，該方法通過建立二階ar模型、估計代表不同目標的模型極點，並由此估算目標加速度來判斷目標性質，該方法不僅可以在雷達已跟蹤上arm后採用，而且適用於雷達搜索掃描時使用，模擬結果表明該方法具有解析度高，對雷達脈沖重復頻率（ pulserepetitionfrequency ， prf ）及積累脈沖數要求不高的特點，在低的prf及少的積累脈沖下，利用該方法仍可有效地識別檢測arm 。
  10. First, robust controllers design with mixed performance requirement is researched by giving output - feedback synthesis with h2, h and regional pole placement constraints. second, reduced - order robust filters design for continue - time / discrete - time systems is researched. the filters obtained are a set of permitted ones and have optimality and unbiased estimation

    首先，以極點配置、 h _ 2 、 h _為目標的輸出反饋綜合為例研究多目標魯棒控制器設計；再則，對連續離散時間系統研究降階魯棒濾波器設計，使得所設計的濾波器具有最優性和無偏性。
  11. Uniaxial motion, fixed - axis rotation ; first and second order systems ; natural and forced response ; transfer functions, zeroes, poles ; elementary control : open - loop, closed - loop ; closing the loop alters the natural and forced response characteristics ; stability and instability

    003單軸運動，固定軸的轉動，一階與二階系統，自然與強迫響應；轉移函數，零點，極點；基本控制：開迴路，閉迴路；回授對自然與強迫響應特性之改變；穩定與不穩定。
  12. This dissertation presented two new methods of robust adaptive track control for a class of mimo strong nonlinear system with external disturbance. one method makes use of taylor approximation principle to linearize the mimo strong nonlinear system at the ideal equilibrium point, meanwhile external disturbance is considered, and then designs two on - line neural network controller respectively, which can dynamically compensate the high order items of taylor series and the control signals at ideal equilibrium point under the drive of state error between linear and nonlinear system. a linear feedback controller obtained by pole assignment and two on - line neural network act on the practical mimo high nonlinear system together, guaranteeing the whole system robust stable and tracking the specified signal ; the other method designs three on - line neural networks for this class of system

    本文對於一類含有外部擾動的多輸入多輸出（ mimo ）強非線性系統，提出了兩種新的魯棒自適應跟蹤控制方法，第一種利用了taylor近似的原理，在考慮了外部擾動的情況下，將mimo強非線性系統在理想平衡點處線性化，分別設計了兩個在線神經網路控制器，在線性和非線性系統之間的狀態誤差驅動下動態補償系統的taylor近似高階項及理想平衡點處的控制信號，滿足極點配置方法的線性反饋控制器和兩個在線神經網路聯合作用於實際的被控mimo強非線性系統，在保證整個系統魯棒穩定性的情況下，能夠跟蹤給定的指令信號；另一種方法是針對這類系統設計了3個在線神經網路，分別實時抵消這類非線性系統中的非線性部分、與控制量耦合的非線性項以及外部擾動，使得受控系統的輸出可以完全跟蹤給定輸入參考信號。
  13. Pole assignment for the first order coupled generalized control systems

    一階耦合廣義控制系統的極點配置問題
  14. At the same time, it states the dominant industry for each district, and defines growth pole of beijing suburbs on the basis of density of dominant industry and economical level for each district. finally, the paper demonstrates that it is necessary to build economy growth pole model of beijing suburbs on the beginning of 21s1 century on analysis of relations among dominant industry, growth pole and economic growth point, discusses evolvement rules about pole - core space structure phase. point - axis space structure phase and network space structure phase, analyses which space structure phase beijing suburbs is in, and brings forward point - axis developing model, then explains definition of point - axis developing model and important meanings for economy development of beijing suburbs, referring to principle of point - axis developing model, the paper proposes economy growth point model, and offer the policy and suggestion for government corresponding to the problems of application of economy growth point model

    最後，通過論述主導產業、增長極與經濟增長點的相互關系，闡述了從產業和地區角度對主導產業和增長極進行綜合分析以構建21世紀初北京郊區的經濟增長點模式的必要性，探討了極核式空間結構階段、點軸式空間結構階段、網路空間結構階段這三種空間結構的演變規律，分析了21世紀初北京郊區所處的空間結構階段，提出了點軸開發模式，從點? ?軸開發的定義、對北京郊區經濟發展的意義進行了論述，進一步通過對點? ?軸空間結構系統的形成機理分析，借鑒點? ?軸開發的原理，提出21世紀初北京郊區的經濟增長點的構建模式，並針對這種模式構建中存在的問題，對政府工作提出了可行性建議。
  15. 4. considering ordinate navigation of certain torpedo system as applied object, output - feedback controllers with h2, h and regional pole placement constraints and reduced - order robust filters are designed. furthermore, simulation results show efficiency and feasibility of the theory and algorithm researched in this paper

    以某型在研魚雷系統縱向運動為應用對象，設計含有極點配置、 h _ 2 、 h _的多目標魚雷輸出反饋控制器和降階魯棒濾波器，並通過計算機模擬驗證本文所研究的理論和方法的合理性和有效性。
  16. This paper discussed the necessary and sufficient condition for arbitrary robust pole assignments of simo systems and miso systems under structured perturbation, and derived the order of compensators when robust pole assignment can be realized

    討論了simo系統和miso系統在結構的可加性擾動下實現魯棒的任意極點配置的充分必要條件，得出了有可能實現魯棒任意極點配置時控制器的階次。
  17. Based on a systematic investigation on the predatory natural enemy community in cotton fields to the north of the huaihe river of anhui province, the methods of polar ordination ( po ) and fuzzy cluster analysis ( fca ) were employed to study the dynamic classification of predatory natural enemy community in cotton fields and the method of principal component analysis ( pca ) was employed to study the major stages of change of predatory enemy community in cotton fields during the process of cotton growth and development

    摘要在對安徽省淮北棉田捕食性天敵群落進行系統調查的基礎上，採用極點排序和模糊聚類分析方法，研究了棉田捕食性天敵群落的動態分類；採用主成分分析方法，研究了棉田捕食性天敵群落在棉花生長發育過程中演變的主要階段。
  18. Especially, paper research that the k - order rational b - spline function change to polynomial b - spline when h limit to 0, +. last the spline function can be used to express the hyperbolic curves. then, when k = 3, 4, paper research the infection of curve because qi is changed

    當形狀參數h 0 ~ + ， +時， k階指定極點有理b樣條退化成多項式b樣條，最後還給出了雙曲線的精確表示
  19. The order - reduced results are verified by comparing the zeros, poles and outputs curves before and after the order reduction and applying the linear quadratic optimal control law for low - order model to the high - order model

    通過零極點比較、輸出曲線比較和將針對低階模型設計的線性二次型最優控制律加入原高階模型等方法對降階結果進行了驗證。
  20. The problem of controller based on time domain performance index using 8 operator theory is discussed in this paper. relation among s domain, z domain and s domain is given. the process of design is showed by an example

    給出了s域、 z域與delta域之間的極點映射關系並推導了二階系統的s域對應的delta域的特徵多項式，並用一個實例說明了控制器的設計過程。
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