有效射束 的英文怎麼說

中文拼音 [yǒuxiàoshèshù]
有效射束 英文
useful beam
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 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;...
  • 有效 : effective; valid; efficacious
  1. Our study shows that the optical potential of the diffracted light of the semi - gaussian beam is far higher than that of the evanescent - light wave, and its maximum normal velocity of the incident atoms can be far grater than that of the evanescent - light wave under the same parameters, so the blue - detuned semi - gaussian beam, as a novel atomic mirror, can be used to efficiently reflect atoms with a normal velocity of greater than 1 m / s

    研究表明，半束蘭失諧高斯光束衍射光場的光學勢遠大於消逝波光場的光學勢，在同樣的參數條件下，入射原子的最大速度也比消逝波光場的大，所以作為一種新穎的原子反射鏡，半束蘭失諧高斯光束可以被用來有效的法向速度大於1m s的入射原子。
  2. The modified traveling wave monopole model is employed in simulating the electron beam in crt of computer vdu. meanwhile acceleration fields of the electron beam are studied in details and its expression given for the first time with measured results. a novel analyzing method is proposed to study the spectrum of electromagnetic information leakage based on the viewpoint of field point, which has been verified effective by experiments

    採用經修正的行波單極子模型模擬計算機陰極射線管顯示器電子束，並詳細研究了電子束的加速場，首次給出了其計算公式和實驗測試結果；還提出了一種新的從場點出發的信息電磁泄漏頻譜分析方法，實驗證明了其有效性； 3
  3. Aiming at this problem, the main research issues and achievements in this paper are as follows : bi - directional data transformation between rdb and xml with semantic constraints preserved for most of existing researches on static data transformation between xml and rdb, dtd is taken as the schema description language for xml, and the semantic constraints are often lost during the transformation process. to overcome these disadvantages, the author adopts xml - schema, a standard schema description language proposed by w3c to replace dtd, as the description method owing to its more powerful functions than dtd, and of course with the syntax much more complicated. after analyzing the constraints characteristics in both xml - schema and relational schema, a semantic constraints - preserved algorithm is proposed which can realize the bi - directional schema mapping between rdb and xml through a formalized description of xml based on regular tree and a general expression for relational schema based on direct graph approach

    保留語義約束的xml與rdb雙向靜態數據轉換技術現有研究大多採用dtd （ documenttypedefinition ，文檔類型定義）作為xml的模式描述語言，並且在模式映射過程中丟失語義約束信息，本文分析了xml - schema （ xml - schema採用與dtd完全不同的語法，數據描述能力更強同時也更為復雜，已被w3c確定為替代dtd作為xml模式描述語言的標準）及關系模式的語義約束特徵，通過基於正則樹的xml形式化描述方法以及基於有向圖的一般關系模式表示方法的研究，建立保留語義約束的xml - schema與關系模式的雙向模式映射演算法，實現了xml與rdb的雙向數據轉換，較好地解決了xml與rdb在靜態數據轉換層面的數據集成問題，可有效滿足企業大量rdb數據面向xml的發布以及與日俱增的xml數據存入rdb的應用需求。
  4. A simple and effective method is given to successfully simulate circular and different serrate type aperture ' s far - field diffraction and compared with the diffraction of hard - edged circular apertures

    摘要採用一種簡單有效的方法，模擬了光束經圓形孔徑和不同齒形光闌的遠場衍射分佈，並與經圓孔硬邊光闌的衍射作了比較。
  5. In the process of programming, the scaling step is adopted to adjust the performance and efficiency of optimization, using the method of filtering inactive constraints to reduce the sensitivity analysis

    程序化過程中，為了提高演算法的效率，採用了射線步來調整結構性態；用準有效約束初選有效約束，以減少敏度分析。
  6. At first, modeling of these divvies by rate equations to obtain expressions for threshold and slope efficiency is given. on the case of this theory, the large numbers of literatures and datum are consulted, and the laser is home studied. through rationally selecting and improving the reflector surface, ensuring the beam quality, increasing farthest the absorption path, and improving effective pumping frequency ; through designing the water cooler of yag bar, the volume of laser is half the same internal and international production, and the output power is get to the extremum of the same international production

    並在此基礎上查閱了大量文獻和資料，對該種激光器進行了深入的研究，通過對yag棒直徑的合理選取併合理地改進反射鏡面，從而既保證了光束質量又最大限度的增加了吸收長度，有效的提高了泵浦效率；在不影響泵浦的前提下，通過有效縮短yag棒的長度減小輸出損耗；對yag棒的水冷系統進行優化結構設計，使激光器體積減小到國外同類產品體積的一半，而輸出功率已達到國外同類產品的極限值。
  7. With the end of cold - war and the intension of competition of aerospace launch market, people hammer at constantly the performance of products and meanwhile they more concern decreasing the cost

    隨著冷戰的結束以及航天發射市場競爭的不斷加劇，人們在不斷提高產品性能的同時，更加關注降低產品成本，而產品概念設計（方案設計）階段是降低產品成本最有效的階段。
  8. In order to verify the simulation field, the ultrasonic wave field radiating by a planar transducer was measured by small ball. by comparing the simulation field with the measured field, it is found that mgb is accurate in the far - field and most near - field region

    為了驗證聲場模擬的可靠性，利用小球法測量了直探頭的水中輻射聲場，將試驗聲場和模擬聲場比較，發現多元高斯聲束模型在遠場區和大部分近場區都是有效的。
  9. The finite difference beam propagation method ( fd - bpm ) can simulate the performance of the waveguide accurately. single mode rid waveguide structure parameters are derived by variational - effective index method ; fd - bpm and its transparent boundary condition ( tbc ) are concerned, and then the eim used to transfer a 3d waveguide to 2d waveguide is analyzed ; finally we summarize the characteristic of the y branch

    本文先利用變分有效折射率法推導出滿足單模傳輸的脊形波導結構參數;接著介紹了有限差分束傳播法及求解的透明邊界條件，同時分析了將三維結構轉化為二維結構的有效折射率法，最後對y分支的特性進行了模擬。
  10. As an example, the parallel machine scheduling problem is mapped on a non - constrained matrix construction graph, and a aco algorithm is proposed to solve the parallel machine scheduling problem. comparison with other best - performing algorithm, the algorithm we proposed is very effective. the finite deterministic markov decision process corresponding to the solution construction procedure of aco algorithm is illustrated in the terminology of reinforcement learning ( rl ) theory

    本章最後提出了解決并行機調度問題的蟻群演算法，該演算法把并行機調度問題映射為無約束矩陣解構造圖，並在演算法的信息素更新過程中應用了無約束矩陣解構造圖的局部歸一化螞蟻種子信息素更新規則，與其他幾個高性能演算法的模擬對比試驗證明這種方法是非常有效的。
  11. Abstract : a general bpm simulator for optical waveguides is presented in this paper. this system includes three tools : the effective refractive index calculation tool, the waveguide mode solution tool, and the beam propagation method simulation tool. this system is very useful for the optimal design of the linear optical waveguide devices

    文摘:介紹了一個光波導器件計算機輔助分析系統，該系統集成了3個實用工具：光波導有效折射率計算工具，光波導模式求解工具和三維復折射率全矢量有限差分束傳播法模擬工具.本系統用於線性波導器件，模擬光在波導中的傳播過程，從而可以優化設計波導器件，探索新結構器件
  12. Even if experimenters bounce the beams to and fro to increase the effective length of an interferometer ' s arms to more than 100 kilometres, the expected difference in length between the two beams ' paths still amounts to less than a hundred - millionth of the diameter of a hydrogen atom

    盡管已經讓激光束反復反射來使激光干涉管臂的有效長度增加到超過了100公里，但在光路路程之內，兩束光波長差仍小於氫原子直徑的一億分之一。
  13. This kind of surgery places a silicon band around the proximal stomach and implants a subcutaneous injection port to control the size of the proximal gastric partition. this surgery has been adopted by europe, australia and the united states with the efficacy and safety verified

    此手術于胃上部裝置矽膠束胃帶，並於皮下置一個注射器，以調節開口的大小而控制胃排空的速度。此束胃帶于歐、美、澳等國家採用多年，其有效性及安全性已為各國所確認。
  14. Otherwise the progressing nuclear engineering makes it possible to improve the quality of neutron beams ; and combined with the developing tumor - localizing boron compounds, bnct will be more effective and more useful for cancer treatment

    另一方面，核能技術的進步也促使中子射束的品質有所改進；配合含硼尋癌藥的發展，硼捉中子治療的效果應該可以更好，于癌病治療上的應用?圍可以更廣。
  15. You could create an analogous capability in other programming languages, but python provides particularly versatile reflection mechanisms, and allows clear expression of validity constraints

    您可以用其它編程語言創建類似的功能，但python提供了非常通用的反射機制，而且能夠清晰地表達有效性約束。
  16. At the same time, the possibility of using nonlinear optics in widening the detecting wave band of hartmann - shack wavefront sensor is exploringly discussed. adaptive optics guarantees the beam quality of laser projecting system. beam cleanup, atmospheric turbulence compensation and correction of any disturbance and fabrication error in the light way are required to promise a near diffraction beam, but normal adaptive optics system can only correction one of them

    自適應光學進行光束大氣傳輸波前畸變校正時，要求系統必須能進行光束凈化和校正大氣湍流造成的波前畸變，並且能夠同時有效地克服發射系統製造誤差、重力變形以及光路內部氣體擾動的影響，得到接近衍射極限的輸出激光光束。
  17. Stimulated brillouin scattering ( sbs ) is considered to " be an effective approach for phase conjugation ( pc ) and increasing the brightness of solid laser radiation

    改善固體激光器光束質量，採用受激布理淵散射（ sbs ）是一種有效的手段。
  18. The gauss - ray tracing have the dynamic and geometric character. it can compose the record by calculating the high frequency wave in transverse anisotropic medium, avoiding getting the accurate ray path. it is a very steady and effective method with little calculation time and a good precision

    高斯射線束正演包括地震波運動學特徵和動力學特徵，能有效的計算橫向上不均勻介質中高頻體波的合成紀錄，避開了精確求取兩點射線路徑，大大減少了計算的時間，同時又具有較高的精度，是一個很穩健有效的方法。
  19. Numerical results show that if appropriate delay times of sources are exerted on elements of phased array, direction of acoustic beam radiated from the phased array can be steered so that the refracted compressional wave and the refracted shear wave can be excited effectively

    結果表明，只要在相控線陣的各陣元之間施加合適延遲時間的激勵信號，就可以調整輻射器的輻射聲束的方向，以有利於激發滑行縱波和滑行橫波；只要採用相對較低的頻率或使用加權相控線陣，就可以增大相控線陣的輻射主瓣角寬，以利於在任意地層有效激勵滑行縱波。
  20. For a system to expose its implementation, the reflection capability is required to open itself effectively and restrictively to clients, which will improve the system ' s flexibility and adaptability, as well as separate the non - functional properties from its functional properties

    如果要想將一個系統的實現開放出來，就得藉助反射的能力將自身有效地且有約束地開放給客戶，以提高系統的靈活性和適應性，並且還可以分離系統的功能性屬性與非功能性屬性。
分享友人
分享到 Line

分享到臉書