晶體置位 的英文怎麼說
中文拼音 [jīngtǐzhìwèi]
晶體置位
英文
setting of crystal- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 體 : 體構詞成分。
- 置 : 動詞1. (擱; 放) place; put; lay 2. (設立; 布置) set up; establish; arrange; fix up 3. (購置) buy; purchase
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
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Meanwhile, a method for rapid thermal fixing is presented, which has some advantages over conventional technique in stability and repeatability, while shortened the fixing time. secondly, we have designed and made a compact practical holographic system that consists of angular - fractal multiplexing system and thermal fixing equipment, including a crystal repositioner with precision less than 0. 001
另一方面,圍繞高密度全息存儲設計復用存儲技術,製作了有較大存儲能力的小型實用熱固定全息系統,包括角度一維度復用系統、離線加熱的晶體夾持器和復位裝置、適合離線與在線加熱的溫控加熱裝置。Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field
文摘:討論了在雙光子驅動場作用下,三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用,兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質,這不僅依賴于兩個上能級與禁帶的相對位置,同時也依賴于原子的初始狀態,而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同,也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質Such control can be realized in case where a atom interact with photonic band gap matericals when the atom is placed in photonic crystals whose density of modes is dramatically different from that of free space vacuum. it was known that control could be achieved by varying the frequency ( which leads to the changes of the relative position of the upper levels from the forbidden gap ) or by varying the photonic density of modes ( dos ) or by varying the intial atomic state
由於光子晶體具有不同於真空中的光子態密度,原子和光子帶隙材料便發生相互作用,這樣便可以控制原子的自發輻射。改變原子上能級與光子禁帶邊緣的相對位置、材料中的光子態密度或原子初態都可以控制原子的自發輻射。The microstructure morphology, the concentration, the infrared transmittance, and the x - ray rocking curves measured showed that a long single crystal part and axial steadily distributed zone of the concentration existed in the as - grown crystals. the radial concentration distribution has relatively high uniformity
通過觀察生長態晶體中的微觀組織形貌,並測量晶體軸向和徑向上不同位置處的成分、紅外透過率和x射線回擺曲線,發現晶內有較長的單晶段和軸向成分穩定區。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 。Slight displacements of atoms relative to their normal lattice positions, normally imposed by crystalline defects such as dislocations, and interstitial and impurity atoms
原子相對於它們正常點陣位置的輕微位移,通常是由晶體的缺陷,如位錯、間隙原子、雜質原子存在引起的。For a cubic crystal of 1cm 1cm 1cm, the horizontal and vertical selective angles are 0. 008 and 0. 41 respectively. so the system is capable of storing 10000 holograms. we also have made an off - line heater and an on - line heater, both of which are controlled by a temperature controller ( model eurotherm )
對于邊長為1cm的立方晶體,復用系統在水平方向和垂直方向上的選擇角分別為0 . 008和0 . 41 ,能夠存儲10000幅數據頁;復位裝置的角度復位精度優於0 . 001 ;溫控加熱裝置的控溫精度為0 . 1 。Results : squareshaped anterior capsulotomy was well done in 56 eyes ( 94. 9 % ) during the operation
術后3個月散瞳后通過房角鏡觀察人工晶體的固定位置。Once the sapphire was covered with nanotubes, they could place the metal electrodes of the transistors wherever they wanted and remove the unwanted nanotubes with highly ionized oxygen gas
藍寶石上覆蓋奈米管后,就可在任意的位置安裝電晶體的金屬電極,再以高度離子化的氧氣除去不需要的奈米管。This thesis work has researched the fabrication technics of photonic crystal defect waveguide with air - bridge structure and collecting waveguide ; suggested using uv - lithography and wet etching to fabricate traditional waveguide, after that, using eb - lithography and dry etching to fabricate photonic crystal holes, so can reduce the fabrication cost by a big range ; designed the moulding board, which can fabricate the air - bridge structure and is convenient for recognizing position in eb - lithography ; the structure consisted of traditional waveguides and etching grooves are fabricated on soi successfully, then an successful eb - lithography is realized on the structure, the defect waveguide collected with the traditional waveguide quite well ; used the etching grooves to do the sacrificial layer etching experiment, which grounded etching sacrificial layer by photonic crystal holes in next step
提出採用紫外光刻工藝製作傳統波導結構之後,通過電子束曝光和干法刻蝕製作光子晶體小孔的工藝方案,大幅度減低了製作成本;設計出可形成空氣橋結構、並且適用於電子束曝光位置識別的光刻模板,在soi材料上成功製作出帶有空氣橋刻蝕預留槽以及接續光波導的結構,在該結構上成功實現了光子晶體帶隙波導的電子束曝光,帶隙波導與接續光波導位置接續良好;最後利用預留槽進行了刻蝕犧牲層的實驗,為下一步利用光子晶體小孔刻蝕犧牲層形成空氣橋結構打下了基礎。To enable the visually impaired to access computers and the internet, computers with specially designed facilities have been installed at eight service units run by four ngos. these special facilities include screen - enlarging software, voice synthesizer software, braille display and large - size lcd monitors
有機會使用電腦和上網,我們在四家非政府機構主辦的八個服務單位,裝置附有特別設施的電腦這些設施包括屏幕放大軟體語音模擬軟體盲人點字機和大型平面液晶體顯示器。By the method of matrix optics, the waist width and imaging distance of gaussian beams through the coupling system are calculated. by the result of the calculation, a set of double planoconvex lens coupling system are designed and manufactured. the coupling efficiency is up to 92 %
利用矩陣光學的方法,計算了高斯光束經耦合系統聚焦后的像距和束腰寬度,以此為指導設計加工了一套雙平凸鏡耦合系統,耦合效率達92 ;在以上基礎上研究了泵浦光與振蕩光在激光晶體中的匹配,計算出了泵浦光經耦合系統后的最佳焦點位置。The piezoelectric actuator becomes one of the most prospective components because of its outstanding advantage. but the hysteresis and creep character of the material restrict the development of this actuator. new stable characteristic tungsten bronze piezoelectric actuator was adopted as driving component in this article, we develop the anti - hysteresis control method through contrasting the crystal structure of the tungsten bronze actuator with which of the perovskite actuator, at the same time corresponding software and hardware were studied in order to prove the validity of this control method, and then demarcated the other characters of the actuators through lots of experiment results
本研究選用了性能穩定的硬性鎢青銅型壓電陶瓷驅動器作為驅動元件,從壓電陶瓷驅動器遲滯產生的微觀機理入手,通過對比硬性鎢青銅型壓電陶瓷驅動器和軟性鈣鈦礦型壓電陶瓷驅動器的晶體結構,研製出壓電陶瓷驅動器抗遲滯驅動方法,設計了相應的軟硬體裝置以從實驗結果上證明這種方法的正確性,並對其他影響定位精度的因素進行了特性標定實驗。As one of its sub - detectors, the electromagnetic calorimeter ( emc ) made of csi crystals, is mainly used to measure the energies and positions of electrons and photons coming out from interactions
Bes的電磁量能器( electromagneticcalorimeter , emc )是北京譜儀多個子探測器中的一個,採用csi晶體結構,主要用來測量反應末態電子和光子的能量和位置信息。The mechanism of hydrothermal process has also been studied. under the hydrothermal conditions, a small quantity of cu2 + in solutions were carried to the copper lattice due to the diffusion and convection, then the cu2 + move to the positions of lattice defect. the crystallization reaction happened and copper powders got a good crystallinity and an excellent antioxidation
在穩定的水熱條件下,由於擴散、對流或強迫流動引起少部分溶解在溶液中的銅離子向銅晶體表面附近的區域輸運,在晶面某一位置上被吸附,並通過表面擴散,順著臺階運動到扭折位置,發生結晶反應。By ensuring that all inner surfaces of the valve are kept constantly wetted and vented to the upstream side when the valve is in the closed position, we have eliminated the conditions required for gas accumulation and caustic crystallization in the body cavity
為了確保所有閥門的內部表面能夠經常保持濕潤狀態,並在閥門關閉期間能將次氯酸鈉排出到上游位置,我們已經消除了閥腔內氣體積累和結晶體產生的必要條件。The complication were slight vitreous hemorrhage in 3 eases, vitreous extrusion in 3 cases and temporary uveitis in 1 ease, conclusions for the management of lens dislocation, it is very important to select the right surgical method
結論根據晶狀體脫位的位置及前後段的情況合理選擇手術方式,可取得良好的手術效果。The creep cavity location and damage of polycrystalline material was studied, and it was considered that there was a great correlation between the cavity sites, creep damage and grain size, and the damage often occurred in the location where grain size was small
摘要研究了多晶體材料在高溫蠕變下的空洞出現位置和損傷特點,認為同一組織下空洞的出現及蠕變損傷的位置與晶粒尺寸有關系,晶粒尺寸小的部位易發生損傷。4. when sppc operated in ce : batio3 with 532nm continuous wave, the phase conjugate reflectivity was measured as a function of incident angle, incident spot dimension, incident position in the crystal and incident power
對連續532urn激光入射下, ce : batio3晶體的位相共軛特性進行大量實驗研,究,討論了位相共軛反射率與晶體上激光入射角、激光在晶體上入射位置。Through changing the cavity form and crystal positions, different power ultravoilot output are obtained. extracavity thg
在兩種方式里邊分別改變腔形和晶體的位置,得到不同功率的紫外光輸出。分享友人