時間變換 的英文怎麼說

中文拼音 [shíjiānbiànhuàn]
時間變換 英文
time transfer
  • : 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...
  • : 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...
  • : 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. The fractional fourier transform is linear time - frequency transform, and it doesn ’ t have disadvantages of wigner - ville distribution. moreover, the precision of this method is higher, and the performance of antinoise is better

    而分數階傅立葉是線性,所以它不受交叉項的干擾,沒有不模糊區減半的缺點,而且它的估計精度高、抗噪性能好。
  2. In this paper, it is shown that some atomic formulas of symbolic states generated by the algorithms can be removed to improve the model checking time - and space - efficiency. such atomic formulas are called as irrelevant atomic formulas. a method is also presented to detect irrelevant formulas based on the test - reset information about clock variables

    一個自動機是一個五元組n , l 0 , c , e , i ,其中n為一個有窮的位置集合, l 0n是初始狀態, c是一個取實數值的量的有窮集合, e ng c 2 cn是轉的集合。
  3. [ scene change to conan, time passed ] jodie protects camel ' s safety

    [場景柯南,流逝過去]朱蒂保障卡梅爾的安全
  4. 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,利用小波頻空的可性,用dwt構造卷積核,對卷積反投影演算法做了改進。
  5. The time - scale amplitude plot and phase plot based on hermitian wavelet transform are presented to singularity detection of signal. the corresponding relation relation between singularity and amplitude plot or phase plot is created. as successful application, fault of axletree damnify is found by means of this method

    提出了基於hermitian小波?尺度幅圖和相圖來識別信號奇異性的方法,建立了信號奇異點與幅圖和相圖的對應關系,在軸承損傷故障診斷中取得了成功的應用。
  6. 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,以及用的方法處理幾何的埃爾朗根綱領,到20世紀拓撲學、高維空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。
  7. Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system

    首先在流學原理的基礎上,深入分析混凝土在輸送管道內的流動狀態,得出混凝土泵的負載特性方程;然後根據功率鍵合圖的建模方法,建立泵送迴路和分配迴路的數學模型,並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬,分析了在不同的輸入流量(泵送頻率)和下,活塞桿的位移和系統的液壓沖擊情況,找到了引起液壓沖擊的根本原因(即分配迴路的響應(固定值)與活塞桿的運動化值)不相匹配) ,並提出了相應的改進方法。
  8. There are two implementations for discrete reaching law, both has obvious strongpoint and limi - tations. so the two was synthesized. simulation results showed that the discrete vsc is easier to be implemented by computer control system, and go further in decoupling between chattering control and system dynamics, while the robustness is not so good as continuous time vsc

    本文的另一項工作是在連續系統的基礎上,討論了離散結構控制策略和抖振控制,針對控制量加速度不足,提出了離散趨近律的兩種實現方式,由於兩種實現方式同樣具有明顯的優缺點,因此將兩種方式結合起來,增加了兩個與滑模面平行的切面作為系統在兩種方式之的界限,並通過計算機模擬驗證控制效果。
  9. 12 daws c, yovine s. reducing the number of clock variables of timed automata. in proc. the 17th ieee real time systems symposium, rtss 96, washington dc, usa, december 1996, ieee computer society press, pp. 73 - 81

    如果從某一個位置l出發,一個量x在被重置之前,不會被任何轉用形如x
  10. Formats 03, marseille, france, september 6 - 7, 2003, lncs 2791, pp. 34 - 45. 11 kalus havelund, arne skou, kim g larsen, kristian lund. formal modelling and analysis of an audio video protocol : an industrial case study using uppaal

    如果從某一個位置l出發,一個量x在被重置之前,不會被任何轉用形如x c或者xc的條件測試,那麼符號狀態l , d中的所有形如x - y
  11. Then, harmonic analysis is done with the newest baytap - g tidal data analyzing software developed by ishiguro and professor tamura, who are working in japan and the eterna34 tidal data analyzing software developed by wenzel, who had worked in german. as a result, the recently observed tidal gravity parameters of jiufeng station are obtained. finally, the ocean loading correction of the observing tidal gravimetric parameters, the temporal synthesized tide, correction of the station air pressure and the polar motion on the gravity residual, the analysis of the final residual, and so on, are investigated

    Vauterin研製的tsoft潮汐數據預處理軟體,實施了觀測數據的預處理,為超導重力儀觀測數據的國際資料交和數據分析準備了修正後數據;然後利用由日本ishiguro與tamura研製的最新的baytap - g和由德國的wenzel研製的eterna34潮汐分析軟體,對預處理后的重力潮汐觀測數據進行調和分析,獲得了九峰臺最近的觀測重力潮汐參數;最後討論了觀測潮汐參數的海潮改正、隨化的重力合成潮的構制、大氣效應改正、極移重力改正以及最終重力殘差的分析。
  12. The structure seems to change color during different times of the day and night

    這一建築物彷彿會在白晝和黑夜的不同時間變換顏色。
  13. We solve time - dependent schrodinger equation of one - dimensional atom in intense laser field with pseudospectral method by introducing nonlinear space transformation

    本文通過引入非線性空,用偽譜方法數值求解了一維原子在強激光場中的含schr (
  14. As the targets flying in groups may spread over several range of cells and their doppler frequencies are time *. varying, a scheme of target number detection in groups on a conventional low *. resolution radar is proposed based on a time *. range *. doppler image cube which is constructed by substituting a time *. frequency transform for the fourier transform in the conventional range *. doppler imaging

    針對實際編隊目標在距離上的分佈特性和目標多普勒頻率的化規律,利用聯合代替傳統傅立葉,建立目標-距離-多普勒立體像,提出一種基於立體像的目標架次檢測方法。
  15. Then, the thesis presents a schema based two - level associated model, which dramatically reduces the number of the candidate subscriptions. in addition, an incremental subscription matching algorithm is proposed to efficiently matching events for millions subscriptions. furthermore, since indexing is very important to the system, the indexing scheme for xml data is defined based on the containment relationship, which can be more efficient to deal with relative paths than previous methods

    另外,由於在意向匹配過程中涉及大量索引問題,為此針對先前研究在處理基於相對路徑的意向表示上存在的問題,本文提出了一種基於相容關系的索引模式,利用系統抽象數據拓撲結構進行相對路徑到絕對路徑的轉,通過基於相容關系的數字方式編碼,能夠快速確定對應結點的依賴關系,同提出了新的路徑轉演算法,將復雜度由過去的平方為線性。
  16. At the beginning of fourth chapter, the article transforms the solving problem of partial differential equation for the american put price into a standard initial and boundary value problem of parabolic type by making some transformations. afterwards, the solving problem of parabolic type is transformed into a initial value problem of ordinary differential equation with respect to through fourier transform again. at the last section of the fourth chapter, the article solves the initial value problem with the progressive euler method and the finite element method

    在第四章,對美式看跌期權價格所滿足的偏微分方程定解問題通過作一系列,使之轉化為一個標準的拋物型初、邊值問題,接著又通過傅里葉,把拋物型初、邊值問題轉為一個關于量的常微分方程初值問題,然後再分別利用改進的歐拉法和有限元法對其進行了求解。
  17. Investigation using remote sensing ( rs ) technology can breakthrough the limits of traditional methods, make full use of its capability of integration, visualization, rapidity and vast - dimensions analysis, and get better results the paper takes the up - to - date landsat - 7 etm + data, which is the most widely used, and quickbird data, which has the highest resolution nowadays, and according the features of the data and landslides, processes the quickbird data with 1 : 10 000 dem orthophoto correction and the landsat - 7 etm + data as follows : ( 1 ) selecting optimal spectrum band : selects 753 bands as the optimal bands ; ( 2 ) image intensifying : selects the principle components processing method on the basis of comparing several image intensifying methods ; ( 3 ) rigour geometric direction : corrects the geometric distortion of the map ; ( 4 ) image fusion : mainly takes his space transform fusion and resolution fusion method, and acquires maps with higher spectrum resolution as well as space resolution. after that, the visual effect of the image has been enhanced, and the interpretation precision

    採用遙感技術,可以突破傳統調查方法的限制,發揮其宏觀、綜合、直觀、快速的特點,取得更好的效果。論文選取目前應用最廣的陸地衛星最新系列landsat - 7etm +數據和空解析度最高的商業衛星quickbird數據作為主要的數據源,根據數據的特點及滑坡災害應用特徵,對quickbird遙感數據則基於1 : 10000dem進行了正射校正,對etm +遙感數據進行了波段優選,選取了753作為最佳組合波段;圖像增強,通過各種增強處理方法的效果對比,選擇主成分分析法對圖像進行增強;幾何精校正,糾正圖像的幾何形;影像融合,主要選取了效果較好的his空融合和解析度融合,得到的圖像既具有較高的光譜解析度,同也具有較高的空解析度。經過上述數字處理,較好地改善了圖像的視覺效果,提高了圖像解譯的精度。
  18. Because the method uses the linear measurable function of bearings varying with time, so it is more effective than the normal method which based on bearings of the target directly, and at the same time it can overcome the limits when use the normal method in special situation

    由於該方法將目標方位隨化的非線性關系轉到另一空的線性關系,這使得檢測更加有效、直觀,並且能夠克服直接採用方位序列檢測目標轉向機動在特殊情況下失效的限制。
  19. Beginning with the equivalence principal, two types of near - field to far - field ( nfff ) transformation s are discussed systematically, i. e. frequency - domain nfff ( fd - nfff ) and time - domain nfff ( td - nfff ). in td - nfff transformation, the concurrent - processing approach is used, where the contributions to far - field from the tangential electric current and magnetic current on the equivalence surface are calculated " on - the - fly " in step with the fdtd simulation. as a result, it is not necessary to store the tangential current components for every equivalence surface at every time step, and therefore reduce considerably computer storage required for the td - nfff transformation

    在理論部分,本文從電磁場的等效原理出發,系統、詳盡地論述了頻域和域近遠場的基本思想,在域近遠場中採用實方法,即每進行一個步的迭代,就計算一次等效面上該步的切向電流和切向磁流對遠場各方向的貢獻,這樣就使域近遠場不需要儲存等效面上每一個步的切向電流和切向磁流,大大減小由於近遠場而增加的計算機內存需要量。
  20. 4. with the consideration of practical soil - pile interaction, the soil around pile is modeled as a three - dimensional viscous - elastic continuous medium and the time effect of the settlement of single pile is studied. the semi - analytical solutions for vertical displacement of soil and for the relationship between settlement of pile head and time were obtained by laplace transform method and fourier inverse method, and the law of the settlement of pile head varying with time was then analyzed and discussed

    考慮樁土藕合作用的單樁沉降效應研究從研究空軸對稱問題的角度出發,將樁周土體建模為三維粘彈性連續介質,更為合理地考慮了靜荷載下樁土系統中單樁與樁周土的藕合作用,分別建立了樁周土體和樁體的靜力平衡方程,並通過拉普拉斯、傅立葉逆等數學手段,獲得了單樁樁周土體的垂直形和樁頂沉降在拉普拉斯域內的解析解和在域內的半解析解,進而分析討論了單樁沉降隨化的規律。
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