扇束 的英文怎麼說

中文拼音 [shānshù]
扇束 英文
fan-beam
  • 扇 : 扇動詞1 （搖動扇子等使空氣流動） fan 2 （用手掌打） strike with the palm of the hand; slap 3 （鳥...
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  1. A new kind of fan - beam antennas

    一種新型扇形波束天線
  2. The image reconstruction algorithms is thoroughly researched. the filter back projection ( fbp ), algebra reconstruction technology ( art ) and fan beam data rearrangement algorithm used in medical computer tomography are improved. the noser algorithm, linear neural networks method and hopfield neural networks method are presented and gain the better result of image reconstruction

    深入研究了圖像重建演算法，改進了醫學ct的濾波反投影演算法、代數重建技術和扇束投影數據重排方法，提出了帶圖像光滑約束的noser演算法、線性神經網路方法和hopfield神經網路方法，並得到了較好的圖像重建結果。
  3. The beam scans a circular area in the form of a sector which sweeps around and around.

    這波束周而復始地呈扇形掃視一個園形區域。
  4. By using the method of aircraft and turbofan engine integrated analysis, a model of maneuverable missile and turbofan engine integrated constrain analysis and mission analysis was developed and the computative examples and the analysis were given

    摘要利用飛機渦扇發動機一體化設計的思路，建立了飛航導彈渦扇發動機一體化設計的約束分析和任務分析模型並給出了算例和分析。
  5. The warriors have bands, ribbons or pins for typing up their hair and the decorations are in the shape of fans, pleats, rolls or splits which seem to be flowing smoothly

    束發后的發帶兩端帶頭飄灑于頭頂的前側，帶頭有的呈扇面形，有的呈折波形春卷形雙歧形等，有的翻卷，有的飄動，生動形象，千姿百態。
  6. The mission section, the constrain conditions, the weight composition of the maneuverable missile, and the model of used in turbofan engine maneuverable missile were presented

    簡述了飛航導彈任務剖面、約束條件的給定、導彈的重量組成以及渦扇發動機模型。
  7. This paper regards narrow fan - beam scan mode as multi - detector parallel beam scan mode

    本論文將窄角扇束掃描看成是多探頭的平行束掃描。
  8. In this paper, the author discusses in detail an efficient iterative image reconstruction algorithm in industrial computerized tomography ( ict ) with the narrow fan - beam projection

    本文對工業ct窄角扇束掃描方式下的迭代圖像重建演算法進行了研究。
  9. Its image reconstruction belongs to the image reconstruction under narrow fan - beam scan mode. after comparing different algorithms, this paper introduces convolution back projection algorithm for the parallel image reconstruction

    採用高能直線加速器作為射線源的高能x射線工業ct機多採用窄角扇束掃描方式，其圖像重建屬窄角扇束掃描方式下的圖像重建。
  10. The narrow fan - beams are reset into parallel beam then the image reconstruction is conducted by parallel beam " convolution back projection algorithm, which combines the high scan efficiency with the convenience of image reconstruction. this paper analyses the parallelism in narrow fan - beam " convolution back projection algorithm, divides the task of image reconstruction into several subtasks, and discusses the parallelization of narrow fan - beam " decomposition and reset, parallel beam " convolution back projection, and image accumulation

    對于窄角扇束掃描方式，把窄角扇束重排成平行束，再由平行束卷積反投影重建演算法來重建圖像，是把掃描的高效率和重建方式的簡便易行很好的結合起來。本論文對窄角扇束卷積反投影演算法進行了并行性分析，指出把圖像重建任務分解為多個子任務并行工作，並在工作站機群上討論了窄角扇束的分解、重排、平行束卷積反投影圖像重建、圖像合成的并行實現。
  11. When the tea - table was done with, they all moved to one of the windows, and looked out into the heavy twilight

    茶點結束之後大家又坐到一扇窗戶面前去眺望沉沉的暮色。
  12. 2. the design thought of annular fan beam sensor structure is presented, and array laser sensor of 15x5 fan beams structure was developed. the sensor ' s measurement sensitivity distribution and spatial resolution are analyzed and calculated

    提出了環形扇束傳感器結構的設計思想，並研製了15 5扇束結構的陣列式激光傳感器，以及對其測量靈敏度分佈和空間解析度等性能指標進行了分析計算。
  13. The experiments showed that the cracking process of such restrained beams in this paper can be divided into three phases, that is, formation of the fanning zones, initialization and development of splitting cracks along longitudinal reinforcement, and accelerating development of the critical crack and / or cracks ( diagonal, flexural ). during the last two phases, it was observed that further opening of some cracks led to some

    研究結果表明，鋼筋混凝土有腹筋約束梁的裂縫開展過程大致可分為扇形區逐步形成、劈裂裂縫出現和發展、最終臨界裂縫（斜裂縫或彎曲裂縫）加速發展至破壞等階段。在後兩個階段中存在某些裂縫發展減弱同時某些裂縫迅速開展的「此消彼漲」的現象。
  14. Unfortunately, up to now, there is no an efficient algorithm to deal with the iterative reconstruction algorithm, especially from fan - scanned projections

    對于迭代重建，目前尚無很好地解決該問題的演算法，特別是對扇束投影重建問題。
  15. It is suggested that the distribution of the depositional systems and the depositional facies have the clear characteristic that in the north of the research area, the alluvial fan sediment, the fluvial system and the delta system are the main styles of the depositional system, towards to the direction of basin the lacustrine, the barrier, the carbonate ramp system become the main depositional systems

    受海平面升降變化控制，區內沉積體系和沉積相的分佈具有明顯的分帶性，北部靠近源區以沖積扇或河流及三角洲沉積為主，向盆地方向以湖泊或海岸障壁-瀉湖、碳酸鹽緩坡沉積為主。中二疊世北部源區發生構造抬升，當時古氣候逐漸乾燥，成煤環境結束，沉積物以陸相河流、湖泊三角洲占優勢。
  16. On the base of the related research achievement, the structure and characteristics of annular fan beam sensor, principle of light scanning, image reconstruction, image explanation and system frequency domain analysis are thoroughly researched. there will be a helpful exploration for developing and utilizing the novel optical measurement technique

    在國內外相關研究進展的基礎上，對環形扇束光學傳感結構及特性、光線掃描原理、圖像重建、圖像解釋和系統綜合分析等方面進行了深入的研究，為進一步開發利用該項新型光測技術進行了有益的探索。
  17. The constrain - analyzed results and the mission - analyzed results of some maneuverable missiles indicate that the model of maneuverable missile and turbofan integrated constrain analysis and mission analysis is feasible and available

    對飛航導彈的約束分析計算結果和任務分析計算結果表明，建立的飛航導彈渦扇發動機一體化約束分析與任務分析模型是合理可行的，具有很好的工程實用價值。
  18. The simulation results show that, either for parallel geometry or for fan beam geometry, high resolution images can be reconstructed by means of both the algorithms from the overlapped projection data. moreover, the quality of the images reconstructed by the virtual detector algorithm from the overlapped low - resolution projection data is almost as good as that of the images reconstructed directly from the high - resolution projection data

    大量模擬試驗結果表明，無論對平行束的相疊低分辨數據還是對扇形束的相疊低分辨數據，用虛擬探測器法和直接重建法均可由相疊低分辨數據重建出具有較高解析度的圖像。
  19. To fan - scanned projections, they are commonly rearranged into parallel projections, which, however, occupy a great deal of memory

    對于扇束投影圖像重建情形，一般做法是將扇形投影重排成平行投影模式，為此需開辟大量內存來存放投影矩陣。
  20. The parallelization of image reconstruction by convolution back projection with narrow fan - beam based on workstations cluster can solve fast image reconstruction of high power x - ict, and the speed of parallel image reconstruction relates to the numbers of workstations involved

    本論文採用窄角扇束卷積反投影圖像重建在工作站機群上的并行實現能解決高能x射線工業ct機的快速圖像重建問題，并行圖像重建的速度與參與并行實現的工作站數有關。
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