空間換時間 的英文怎麼說

中文拼音 [kōngjiānhuànshíjiān]
空間換時間 英文
trade space for time
  • 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...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 空間 : space; enclosure; room; blank; interspace
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. On the basis of investigation and research about the technology of reconstruction for ict image up - to - date, this paper is devoted to develop an algorithm for image reconstruction based on wavelet theory. in this paper, time - frequency distribution for spatially varying filter was used to construct convolve - kernel by dwt, to modify convolve - back - projection algorithm

    本文在國內外有關ct圖像重建的研究狀況基礎上，根據小波分析理論，利用小波變換在時頻空間的可變性，用dwt變換構造卷積核，對卷積反投影演算法做了改進。
  2. As we all known, with the founding of euclidean geometry in ancient greece, with the development of analytic geometry and other kinds of geometries, with f. kline " s erlanger program in 1872 and the new developments of geometry in 20th century such as topology and so on, man has developed their understand of geometry. on the other hand, euclid formed geometry as a deductive system by using axiomatic theory for the first time. the content and method of geometry have dramatically changed, but the geometry curriculum has not changed correspondingly until the first strike from kline and perry " s appealing

    縱觀幾何學發展的歷史，可以稱得上波瀾壯闊：一方面，從古希臘時代的歐氏綜合幾何，到近代解析幾何等多種幾何的發展，以及用變換的方法處理幾何的埃爾朗根綱領，到20世紀拓撲學、高維空間理論等幾何學的新發展，這一切都在不斷豐富人們對幾何學的認識；另一方面，從歐幾里得第一次使用公理化方法把幾何學組織成一個邏輯演繹體系，到羅巴切夫斯基非歐幾何的發現，以及希爾伯特形式公理體系的建立，極大地發展了公理化思想方法，不管是幾何學的內容還是方法都發生了質的飛躍。
  3. Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located

    首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。
  4. In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical

    在硬體設計中，本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、後面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部採用串口通信，同時系統電路配置成中斷響應方式，這樣既滿足了系統要求，又充分利用了tms320f2812的硬體資源。在軟體設計中，本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態反饋的控制演算法的程序設計。
  5. 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。
  6. Then, the solving method is studied besides the transform relationship of the problem between the time space and the phase space

    研究了問題在時域和相空間中的變換關系和求解方法。
  7. The best scheme was chosen after analysis and comparing and the structure was designed. at same time, the kinematics analysis was conducted, coordinate transformation matrix using d - h method was set up, and the kinematics equation direct solution and inverse solution was deduced, the velocity jacobian matrix was constructed using vector product method, and the values of displacement and velocity of some special point including the wrist point were calculated. secondly, the working space of the robot was analyzed and the axes section of practical working space was drawn

    首先，作者針對機器人的設計要求提出了多個方案，對其進行分析比較，選擇其中最優的方案進行了結構設計；同時進行了運動學分析，用d - h方法建立了坐標變換矩陣，推算了運動方程的正、逆解；用矢量積法推導了速度雅可比矩陣，並計算了包括腕點在內的一些點的位移和速度；然後藉助坐標變換矩陣進行工作空間分析，作出了實際工作空間的軸剖面。
  8. Real - time conversion for color space in videophone

    可視電話的視頻色彩空間的實時轉換
  9. The saying about “ realize the mind consciousness ” in buddhism means to realize all the earthly phenomena, such as space, time, psychological, physiological, physical, social, natural and so on, all the anti - conversion phenomenon are nothing but the position changes of causes and reasons, changes in composition, differences in types, and then the consequence are the phenomenon of dissolution - composition, composition - dissolution, and combine - dismiss, dismiss - combine

    佛教所說的悟境，既是悟出世間的一切現象，空間的、時間的、心理的、生理的、物理的、社會的、自然的，凡是現象的起滅轉換、無非是由於因及緣的位子的變動，成份的增減，類別的出入，而產生的離合、合離及組成、解散，解散了再組成的現象。
  10. Axial load composed of five main kinds of vehicles was gained by eye - observing, and then the mean exchange coefficients of each kind of vehicles and equivalent standard axle load were obtained

    利用目測法得到各類車輛軸載組成，通過分析得到各類車輛平均軸載換算系數，然後求得標準軸載作用次數，採用空間換時間方法，最後建立了四個地區不同交通量等級下的路面使用性能預測方程。
  11. An efficient method of computing the shortest path algorithm which is based on dijkstra algorithm is presented ; 4

    對經典dijkstra最短路徑搜索演算法採用空間換時間的方法，提高了搜索效率； 4
  12. Interlace to progressive conversion is accomplished by means of " space for time ". double frequency designed may upgrade the sytem and meet the need of slltv research in future

    利用「空間換時間」的新方法，將視頻信號進行隔行到逐行的轉換。同時為了可以升級系統，滿足后續研究的需要，設計了倍頻功能。
  13. The existing comparatively mature algorithms about these two problems is optimized and improved. fast implementation of operation on big integers is realized mainly through cut buffer, namely the strategy of getting time by space

    並對現有比較成熟的演算法進行了優化改進，主要通過開辟緩沖區，以空間換取時間的策略，完成了大整數的高速運算。
  14. We must adopt the strategy of trading space for time

    我們必須採用以空間換取時間的戰略。
  15. Trade space for time

    以空間換取時間
  16. But, to gain the high quality and low baud rate, g723. 1 pays out the costs, such as the high complex of coding arithmetic, high delay and large store space. each of them brings up the difficulties of its real - time implementation

    G . 723 . 1的高質量和低碼率是以其高復雜度的編碼演算法、較高的延遲以及較大的存儲空間換得的，這也大大增加了它的實時實現難度。
  17. The invariance of the interval further strengthens that view of a kind of "interchangeability" between space and time.

    間隔的不變性進一步加強了空間和時間之間具有某種「可交換性」的那種觀點。
  18. There are spatial and temporal scalability simultaneously in three - dimensional wavelet transformation for sequence pictures, it is one of best video encoding methods in network video

    視頻序列圖像的三維小波變換壓縮，同時具有空間和時間的內在伸縮性，是網路視頻傳輸的理想編碼方法之一。
  19. The conventional ways has low efficiency, which result in the application of overlap grid in moving - grid problem, which need re - disposes the interpolating connection in every step in time direction, is very difficult considering the computational efficiency. aim at the above problem in application of overlap grid, this paper using an new manner rooting in analysissitus to put forward a “ method of distinguishing points of intersection ” and develop corresponding computational soft, which could realize the automatic and shape - independent pre - disposal process for overlap grid. to deal with the problem of low efficiency for pre - disposal process in moving - grid, this paper bring forward the “ mosaic ” method and adt method which based on the huge memory of modern computer

    對于重疊網格在動網格應用中的計算效率問題，本文通過進一步研究插值信息的高速查詢方法，提出不同於傳統演算法思路，以現代計算機大內存為基礎，用計算機物理內存空間換計算時間的」 mosaic 」方法以及應用基於二叉樹數據結構的adt （ alternatingdigitaltree ）方法兩類方法，成功的將原處理時間提高了兩個數量級? ?即將網格規模在百萬量級的重疊網格預處理時間從傳統方法的耗時30 60分鐘提高到幾十秒鐘，從而成功解決了這一問題。
  20. Among the standards which are established using mixed coding technology, g. 723. 1 has the highest efficiency, and widely used in many fields. but to gain the high quality and low baud rate, g. 723. 1 pays out the cost, such as the high complex of coding arithmetic, high delay and large storage space. each of them bings up the difficulties of its real time implementation

    G . 723 . 1演算法是目前制定的一系列採用混合編碼技術語音編碼標準中效率最高的，以其卓越的性能被廣泛應用在各種領域。但它的高質量和低碼率，是以高復雜度的編碼演算法、較高的延遲，以及較大的存儲空間換得的，這也大大增加了它的實時實現難度。
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