空間波動 的英文怎麼說
中文拼音 [kōngjiānbōdòng]
空間波動
英文
space wave- 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...
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 空間 : space; enclosure; room; blank; interspace
- 波動 : 1 (不穩定) undulate; fluctuate; unsettle; surge; rise and fall 2 [物理學] wave (motion); wave...
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The planets occupy orbits that are regularly spaced according to a pattern first noticed by bode.
行星動行的軌道在空間的位置是有一定規則的,波特首先注意到了這種規律性。Mechanics course mainly includes the description of movement of objects, the instantaneous effect of strength, spatial build - up effect of strength, temporal build - up effect of strength, nonindividual body mechanics, mechanical wave and sound, relativity, inalterability and covariability and mechanics foundation of the theory of relativity
力學主要內容包括物體運動的描述,力的瞬時效應,力的空間累積效應,力的時間累積效應,連續體力學,機械波和聲,相對性、不變性與協變性和相對論力學基礎等。Estimating a dynamical trajectory of the reverberation and then taking it out from the observation, all target echoes should be obtained. that is called signal separation
信號分離是指在相空間中估計混響動力學軌道,從觀測中減去估計的混響,從而分離出目標回波。It does not need much area, not any pollution, not consuming much electricity power, not need much cost. gshp combined floor radiation air - conditioning system possess high seasonal average cop value and great capacity of edaphic depositing heat energy, can ease up supplied water temperature fluctuating with the change of the outdoor air temperature
地源熱泵技術聯合地板輻射對房間進行冷暖聯供的形式,具有地源熱泵季節性平均性能系數高、土壤蓄熱能力強、能緩解空氣源熱泵存在的供冷供熱能力隨環境溫度波動大的矛盾等優點。Radar, light, and other electromagnetic waves transfer momentum and energy through space.
雷達、光和其它形式的電磁波將其動量和能量通過空間輸送出去。Fluctuations are spatial and temporal in character.
這種波動的特點是空間性和瞬時性的。The most outstanding function of this wheelchair is its height which can be regulated with user ' s requirements. this function helps expand the user ' s available space, supplement the user ' s body defect and reduce the caregiver ' s burden. it get more improved than previous products. besides, the wheelchair has designed both manual and eletric mode. on one hand, it can save user ' s energy and power, on the other hand it won ' t leave users hopeless in case of powering off and relieve the user ' s worriness. in addition, the bigger basket on the tail part of the wheelchair provides the great convenience for user ' s carrying goods. multiangular back and height - regulated pedal add comfortableness to users. the minidesk with the wheelchair is very convenient for users to read, write and do other things
本設計的多功能輪椅最突出的一個功能就是座位的高度可以根據使用者的需求隨意進行調節,這樣就可以大大擴展使用者的操作空間,補充了使用者在身體上的缺陷,也可以減輕照顧人員的工作負擔,比起以前的產品有了較明顯的改進;其他功能還有輪椅的手動電動兩種驅動方式,這樣可以解決老年人和殘疾人在體力上存在的問題,同時在外出時遇上沒電的情況也不至於顯得無能無力,消除了使使用者在長途奔波時的顧慮;此外位於輪椅尾部的超大儲物筐,給使用者攜帶物品帶來了極大的方便,靠背的多角度調節,腳踏板的高度調節大大增加了使用者的使用舒適度,輪椅上小桌的設計給使用者讀書,寫字,進行其他活動帶來了極大的方便。The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage
系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速,減少了逆變器輸出電流的諧波,降低了脈動轉矩,提高了電壓的利用率。The equations of motion governing the axisymmetric elastic deformation of finite orthotropic cylindrical shells, involving the effect of transverse shear and rotational inertia, are derived. by applying the reverberation method, the displacement and the resultant forces of the shell in the phase space are expressed. then the transient waves in the finite orthotropic cylindrical shell subjected to the axisymmetric impact are obtained by using inverse laplace transforms. furthermore, the transient solutions are decomposed to the generalized ray integrals and computed numerically
分析了計及剪切變形和轉動慣性的有限長正交異性圓柱殼中彈性瞬態波的傳播問題,採用回傳矩陣法,在相空間中給出了位移和內力的表達式。再利用laplace逆變換,得到正交異性圓柱殼受軸對稱沖擊作用時彈性瞬態波解,然後將其分解為若干廣義射線積分之和,並用數值方法求解之。The traffic trunk line is a basic premise of the development of teb
工業集聚-擴散的波浪式運動是經濟在空間上擴散的一個基本模式。While two ( or more ) electromagnetic waves of the same frequency, same direction of vibration, same phase or constant phase difference superpose in space, the amplitude of composite wave is vector sum of the amplitude of each wave
由兩個(或兩個以上)頻率、振動方向相同、相位相同或相位差恆定的電磁波在空間疊加時,合成波振幅為各個波的振幅的矢量和。A i med at the badu ( k343 ) i arge seale i andslide in the nankun railway, geophysical exploration techniques such as seismic reflection of high resolution and geological radar are appi ied to detect the geologic characteristics of the landslide mass including 3d - conformation, perimeter, geometric parameters, si ippage pattern and distribution of displacement field in this dissertation. besides, acoustic method is used for detection of the former anti - slide piles and potency losing causations of the piles are analyzed and the sound geological conditions for upgrade of the piles are ascertained by the above investigations
本文針對南昆鐵路八渡( k343 )大型滑坡,運用高解析度反射地震、地質雷達等地球物理探測技術對滑坡體地質進行了詳細的勘測,揭示了八渡滑坡體的空間形態、邊界與幾何參數、滑動方式以及位移場分佈特徵;同時,利用聲波探測對原抗滑樁進行了檢測,分析了失效原因,並查清了擬建抗滑樁地段的地質條件。As the percentage of flexible space structures and the requirement for control accuracy continuousely increase, the control of flexible space structures is increasingly important. focusing on the problem of vibration control of clamped beam, the thesis studied the application of wave absorbing theory to the vibration control
隨著空間結構中的撓性結構的比重的不斷增加和軌道、姿態控制精度要求的不斷提高,使撓性結構振動控制日益重要,本文針對懸臂梁的彎曲振動控制問題,研究了波吸收器在振動控制中的應用。A significant change in the number of connections can invalidate the parameter settings of blue and cause the queue backlog oscillation between loss and under - utilization
連接數量的顯著變化會使得blue隊列管理機制的參數失效並導致隊列在丟包和空隊列之間波動。( 2 ) based on the wave equation in the acoustic fluid space and the theory of thin - wall structure, the non - symmetrical coupled structure - acoustic dynamic equation without damping is studied. the non - symmetric system of the finite element model for coupled structure - acoustic response is solved by the conjugate subspace iteration method
由聲空間波動方程和薄板理論出發,對聲場?結構耦合系統的模態分析提出了有限元數值方法,採用共扼子空間迭代法對非對稱特徵方程進行處理,採用靜凝聚法消除質量矩陣的奇異性。The circumference mfl of the wire rope has a broad space - frequency range along the axial of rope
鋼絲繩周向漏磁信號沿繩長有豐富的空間波動頻率成份。Albert einstein suggested long ago that we are adrift in a universe filled with waves from space
阿爾伯特?愛因斯坦在很久以前發現,我們漂泊在充滿著空間波動的宇宙中。After the discussion of the numerical simulation method based on the fdtd method and the pml technique, the motions of the charges and the electrical field lines were first employed to describe the radiation procedures of the pulse electromagnetic waves. then the causes of how the charges are accelerated and how the motion status of the charges are maintained were further studied from the angle of interaction of charge and field. after these analyses, it was pointed out that the pulse radiation is due to the suddenly occurred time - varying electrical field ( displacement current ) in the open space. this view was further evidenced by two examples : one is the partly resistance loaded antenna, the other is the partly curved antenna. the radiation procedures of the pulse electromagnetic waves of many different situations were simulated throughout this paper with the contours and waveforms of electric field given. these figures are very helpful to the understanding of the radiation mechanism of the pulse electromagnetic waves
在討論了基於時域有限差分法和完全匹配層技術的數值模擬方法之後,首先從運動電荷和電力線的角度直觀地描述了脈沖電磁波的輻射過程,然後進一步從場與電荷相互作用的角度分析了天線上電荷是如何被加速以及如何維持其運動狀態的,指出了開放空間中突然出現的時變電場(位移電流)是脈沖電磁波輻射的根本原因.文中還對局部電阻加載的天線和局部彎曲的天線進行了研究,以進一步說明上述觀點.對多種情況下的脈沖輻射過程進行了數值模擬,並給出了電場的等高線和空間波形圖,這些圖形對理解脈沖電磁波的輻射機理非常有益3 ) the dynamic responses are studied primarily when the normal incident waves from the lateral boundary are rayleigh surface waves. the results of the dynamic response and the spatial waveforms are given. through comparing the numerical solutions with the analytical solutions of one - phase media, the validity of the corresponding program is proved
初步分析了基於單相介質理論的rayleigh面波從側邊界垂直入射時的動力響應問題,給出了動力響應結果和rayleigh面波的空間波形,通過比較單相介質數值解與解析解兩種方法的分析結果來檢驗程序的正確性。First, being based upon kalman filter, extended kalman filter formulas was established ; second, with using extended kalman filter in non - linear dynamics system maximum likelihood identification method, the self - contained formulas of estimating parameter was established ; third, according to the air layout of the missle, the aerodynamic parameters identification calculating model was gained, with applying to the non - linear dynamics system maximum likelihood identification method ; finally, with using the calculating model, the aerodynamic parameters were gained. the results which were gained from the calulating model were almost consistent with which were gained from the wind tunnel experiment. thus, it was viable to use the method to estimate the aerodynamic parameters
首先,以卡爾曼濾波為基礎,將其推廣于非線性動力學系統,建立了廣義卡爾曼濾波算式;其次,把廣義卡爾曼濾波算式應用於非線性動力學系統最大似然演算法和非線性動力學系統最大似然遞推演算法中,建立了各自的參數估計完備算式;再其次,以所建立的傾斜穩定導彈空間運動數學模型為基礎,根據該導彈的氣動布局,推導並建立了該導彈空間運動數學模型,將最大似然遞推演算法應用其中,建立了導彈氣動力參數辨識的數學模型;最後,利用該模型,估算出了氣動力參數,所得結果與風洞實驗數據基本吻合,從而認為採用此方法是可行的。分享友人