聚焦帶 的英文怎麼說

中文拼音 [jùjiāodài]
聚焦帶 英文
focal zone
  • 聚 : 動詞（聚集; 聚積） assemble; gather; get together
  • 焦 : Ⅰ形容詞1 （物體受熱失去水分 呈現黃黑色並發硬、發脆） burnt; scorched; charred 2 （著急） worried;...
  • 聚焦 : [物理學] （使光或電子束等聚集於一點） focus; focusing; concentrate
  1. Chemotherapy use chemical drugs to treat tumor, it also bring harm to person ' s body. it is a new hotspot that using ultrasonic to treat tumor in the world recently. focusing ultrasonic on tumor, we can kill the malignant cells using the heat generated by ultrasonic without serious side effect like actinotheraphy or chemotherapy, so, it is new method with great hope

    將超聲波用於腫瘤治療是近年來各國研究的熱點，通過將超聲波聚焦到腫瘤組織上，利用其熱效應殺死腫瘤細胞，不會給患者帶來生理痛苦，也不會像放療和化療那樣產生嚴重的副作用，因此是一種很有發展前途的新方法。
  2. Since the dichromated gelatin has a higher diffraction efficiency in all holographic recording materials, the aim of this research is to use dichromated gelatin as the recording material and to make use of the principle of holography to design holographic optical components, especially in fabrication procedure of dichromated gelatin film and in experimental technique to form a high diffraction efficiency using different angular exposure method

    為了產生優質的聚焦能力與效率，本研究採用目前具有最高繞射效率（ 80 ~ 90 % ）的重鉻酸明膠材料作為感光劑，除了自行調制藥劑比例成分，並依嚴格的製作步製成重鉻酸明膠全像片外，並採用不同角度重覆曝光方式改良干涉式波帶板無法自動追蹤的缺點，經過多次試驗與改進，藉以形成具備高繞射效率和自動追蹤功能的全像光學波帶板。
  3. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  4. Activity of alcohol dehydrogenase and phenylalanine ammonia - lyase varied during the blooming of jasmine flower. the non - specific esterase isozymes were isolated by different methods. two enzyme stripes were gained with page ( polyacrylamide gel electrophoresis ) method, while eight stripes were obtained with ief ( isoelectrofocusing ) method

    等電聚焦法分離茉莉花酯酶的效果較好，用聚丙烯酰胺常規分離只得到2條酶帶，而用等電聚焦法分離茉莉花酯酶同工酶可獲得8條比較清晰的酶帶。
  5. Development of focusing broadband immersion probe

    水浸寬帶聚焦超聲探頭的研製
  6. Electrons which pass through the thin specimen are brought to a focus in the back focal plane of the objective lens, this lens, like all electromagnetic lenses, acts as a converging lens and thus forms a diffraction pattern in this b. f. plane

    穿越薄樣本的電子被帶到目標透鏡背面焦點平面的一個焦點，這個透鏡，象所有的電子透鏡一樣，充當了聚焦透鏡的作用，因此，構造了在這個背面焦點平面的衍射模式。
  7. This paper ' s study is focused on the principle of bistatic sar on the basis of giving a brief introduction of sar principle, including azimuth resolution, mapping width, focusing deepness, pulse repetition frequency limitation and radar equation etc. then the paper studies the special form of bistatic sar with stationary transmitter

    在簡要介紹了合成孔徑雷達的成像原理后，本文著重從原理方面對雙站sar進行了分析，討論雙站sar的方位向解析度，測繪帶寬，聚焦深度，脈沖重復頻率限制，雷達方程等問題，然後對發射機固定的雙站sar這種特殊的雙站sar模式進行分析。
  8. The organizing committee of on demand china 2007 is dedicating to creating a top - level communication platform that enables all vendors and costumers in the chinese market to easily access the latest digital printing technology, products, solutions, as well as share experiences and knowledge

    作為中國首個聚焦按需印刷技術的展會，它的舉辦將為中國的印刷從業者帶來了世界尖端的數碼按需印刷技術、產品以及解決方案，創造了一個獲取印藝新知的窗口，更為國內外廠商提供了一個交流經驗和技術的平臺。
  9. The tbc algorithm simulates that wave near the boundaries is plane wave, and its amplitude and direction are decided by trial and error. in this thesis, the operation principle of an awg is introduced and the structure parameters of 8x8 awg with its central wavelength 1550. 12 / 7 / n and channel spacing 3. 2nm are designed by discussing the crosstalk to neighboring waveguide, the insertion losses and losses equal, etc. this thesis employs the waveguide theories to analyze the slab waveguide and the arrayed waveguide, and offers the distributions of stable optical fields

    本文旨在設計一個中心波長為1550 . 12nm 、波長間隔為3 . 2nm的8 8awg波分復用器，通過綜合考慮相鄰波導間的最大串擾、插入損耗、通帶寬度以及各通道損耗均勻等指標來設計、優化awg的各個結構參數，如輸入、輸出波導和波導陣列中相鄰波導的間隔，平板波導的聚焦長度，波導陣列中相鄰波導的長度差等。
  10. Standard practice for mechanized ultrasonic examination of girth welds using zonal discrimination with focused search units

    用與聚焦探尋裝置的帶狀差別進行環縫焊接的機械超聲檢驗的標準操作規程
  11. For these special area, how to use the proper water resource in the irrigated area as the cut - in point to develop waterfront landscape, and change the former method which is only focused on irrigation and water conservancy and how to make the best use of waterfront to build a rapid - developing area in city and town, is a urgent and real - life problem. it is worthy of serious reflection and hunting

    在這樣一個特定地區，如何利用灌區特有的渠水資源作為濱水景觀開發的切入點，扭轉以往僅僅聚焦于灌溉、水利的片面做法；如何解決灌區濱水景觀的特殊性，最大限度發揮濱水空間的潛力，營造城鎮更新的活躍地帶，在當今城市大發展的宏觀背景下，是一個迫切而又現實的問題，值得每一個建設者認真思索與探求。
  12. Rapid identification of seed purity by ief for the hybrid rice combination fengyou

    幾個水稻品種的種子蛋白超薄等電聚焦譜帶的差異
  13. Qd3. among them, six halocins ( hal c6, hal c8, hal c9, hal c16, hal cl7 and hal c22 ) displayed wide inhibitory spectra and could inhibit the growth of most ( > 10 ) haloarchaeal strains tested

    純化后的嗜鹽菌素c8在tricinesds - page上表現為單一條帶，分子量大小為6 . 3kda ，等電聚焦測得其等電點為4 . 4左右。
  14. Thirdly, a modified extended chirp scaling ( ecs ) algorithm is presented, which solves the problem of producding fine focused images in the class of chirp scaling ( cs ) algorithm. lt can be used for uwb - sar imaging effectively. the phas e error produced by cs operation are analyzed. a windowed process in two dimension frequency domain before cs operation are proposed. it can improve the quality of image and widen the effectively swath and increase the peak to sidelobe ratio ( pslr )

    然後針對chirpscaling （ cs ）類演算法不能對參考點精確聚焦的問題，提出了一種改進的擴展cs （ ecs ）演算法，實現了對uwb - sar的高效成像；分析了cs操作產生的相位誤差，提出在cs操作之前在二維頻率域對信號加窗，除有效提高信號的峰值旁瓣比（ pslr ）外，還可以提高圖像質量，增加有效測繪帶寬度。
  15. The interferometric zone plate is the essential of hoes, which is the interference between plane wave and sphere wave, can focus the light beam by diffraction, instead of the way which conventional lens or concave mirrors do

    摘要干涉式波帶板系由平面波和球面波兩道光波干涉而成，為研究全像光學元件的基礎，其可經由繞射作用達到聚焦效果，猶如使用傳統凸透鏡或凹面鏡所產生的效果。
  16. The camera connection for the second camera do not provide power or pan, tilt and zoom control

    連著的另一臺攝像機不帶開關、掃視、俯仰、變焦和聚焦控制。
  17. The fifth part introduces in detail some new thought that cognition of information science brings us. for example, the relation from theory, metatheory and philosophy, the change of paradigm in information science research, the relation between cognition for information science and information - seeking behavior, the focus of cognition for information science be the problem of knowledge configuration, the relation between cognition for information science and information research. at last, author further discusses the modification for brookes " equation

    在第5部分中，詳細描述了情報學認知觀給我們帶來的新思維：如，理論、元理論和哲學以及情報學研究範式的轉變、情報學認知觀與信息查尋行為、認知觀點的情報學聚焦知識結構問題、情報學認知觀點與情報研究，最後，記述了筆者對布魯克斯情報學方程式的進一步探討。
  18. A practical soft - edge annular beam is also studied numerically and the similar properties are obtained t6 confirm our analysis

    然後利用數值模擬的手段，研究了帶軟化因子的環形光束的聚焦性質，從而在整體上給出了環形光束的聚焦性質。
  19. The subunits of dpl were dpl - a 39. 6kd and dpl - 3 36. 8kd, respectively. it may consist two a subunits and two 3 subunits without disulphide bridges. dpl showed no specific agglutination with any type of human erythrocytes

    純化的dpl在page和等電聚焦中顯示一條帶，在非還原和還原sds - page中呈現兩條帶，分子量分別為- 39 . 6kd和- 36 . 8kd ，證明dpl由兩個亞基和兩個亞基組成，無二硫鍵。
  20. Discussions and preliminary experiments are given for some potential applications of left - handed materials. experimental results which are in accordance with expects for the focusing of plane wave using symmetric rings and the focusing of radiate source using rings are obtained. simulation results are also obtained concerning the - like structure based backward radiate antenna and transmission line based left - handed structures

    對稱環結構異向介質凹透鏡的平面波聚焦、結構異向介質的點源會聚等實驗都得到了和預期接近的初步結果；對基於結構全固態異向介質後向波介質天線微波異向介質的實驗研究和基於微帶電路結構單元的異向介質進行了計算機模擬研究，也取得了較好的結果。
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