環形激波 的英文怎麼說

中文拼音 [huánxíngjībō]
環形激波 英文
annular shock
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 激 : Ⅰ動詞1 （水因受到阻礙或震蕩而向上涌） swash; surge; dash 2 （冷水突然刺激身體使得病） fall ill fr...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 環形 : annular; ringlike; ring form; bight; annularity環形癌 annular carcinoma; 環形電路 [訊] loop circu...
  1. The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro

    激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。
  2. This dissertation is about taking use of the merit of the traveling wave principle, exciting a traveling wave in a ring type stator with two tangential paths, generating the linear movement of the ultrasonic motor

    本文研究利用行波原理的優點，在具有兩個直線段的長環形結構中激勵出行波，使馬達產生直線運動的超聲波直線馬達。
  3. The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other

    當前噴嘴流束中的不穩定擾動波在穿過腔內的剪切層時，剪切層對其有選擇放大作用，形成渦環結構，剪切流動中渦環與碰撞壁撞擊，在碰撞區域產生壓力擾動波並向上游反射，在上游剪切層分離處誘發新的擾動的產生，當新擾動與原擾動匹配時，射流上游就被不斷地受到周期性激勵，腔內就產生流體自激振蕩並在後噴嘴出口形成脈沖射流。
  4. Secondly, we propose and demonstrate experimentally a novel multi - wavelength erbium - doped fiber ring laser by using a mach - zehnder fiber interferometer and composite cavity. as a result, simultaneous multi - wavelength oscillations with narrow linewidth and equal wavelength span are obtained in room temperature. this device has advantageous of simple design fabrication and low cost et al

    進一步，我們設計了一種新穎的多波長摻鉺光纖環形激光器，這種激光器是利用mach - zenhder （ m - z ）光纖型干涉儀作為梳狀濾波器，並且與復合腔共同選頻，獲得了窄線寬、等間隔的多波長同時輸出，這種激光器具有在常溫工作，結構簡單，成本低等優點。
  5. Linear array can only provide an azimuth scan ranging from 0 to 180 degree, while circular array from 0 to 360. by means of recurring moving array excitation, circular array controls the beams ’ orientation simply and neatly, creating a perfect pattern in azimuth and an ideal pattern in pitch

    線陣只能有180的掃描范圍，而圓形陣列能夠提供360方位角，通過循環移動陣列激勵，簡單而靈活地操縱波束的方位，能夠在方位上產生沒有方向性方向圖，而在俯仰方向上也有一個理想的方向特性。
  6. Internal waves are a kind of bridge relating the diapycnal mechanical mixing to external sources of mechanical energy : first, internal waves are driven by wind stress and barotropic tide so that large amount of mechanical energy are transported to abyssal ocean with propagation of internal waves ; second, the mechanical energy can directly be cascaded to mixing through instability and breaking of internal waves

    內波是外界提供的機械能與混合之間聯系的橋梁之一，一方面風和潮汐通過激發內波，將能量向深海和大洋內區傳遞，另一方面，內波的不穩定和破碎直接將機械能串級到小尺度湍流混合中去。開展傾斜地形上內波的傳播以及內潮的產生等方面的研究對海洋混合過程的參數化以及混合對大洋環流的影響等方面的研究具有重要的科學意義。
  7. Numerical investigation of detonation direct initiation induced by toroidal shock wave focusing

    用環形激波聚焦實現爆轟波直接起爆的數值模擬
  8. Based on the character of the eof gain at 1550 nm, a laser diode ( ld ) worked at 980 nm and acted as the pumping source, a eof employed as gain medium, and a fiber grating used as reflector, an ring - cavity all - fiber laser worked at 1562. 5 nm was demonstrated with an output power of 2. 0 mw and a bandwidth of 0

    本文主要基於摻鉺光纖在1550nm波段的增益特性，利用帶尾纖的980nm半導體激光器作為泵浦源，鉺光纖作為增益介質，布拉格光纖光柵作為諧振腔反射鏡，實現了波長為1562 . 5nm的環形腔光纖激光器，得到了2mw的激光輸出。
  9. ( 3 ). the theoretical analysis and the experimental study on an active mode - locked fiber laser are conducted. the harmonic mode - locked pulses of 2. 5ghz and 5ghz are achieved and the 2 - 4 order rational harmonic mode - locked pulses of 2. 5ghz are researched in active mode - locked erbium - doped fiber ring lasers

    （ 3 ）對主動鎖模光纖激光器進行了理論分析和實驗研究，在主動鎖模摻鉺光纖環形腔激光器中實現了2 . 5ghz 、 5ghz的諧波鎖模，並在2 . 5ghz的調制頻率下獲得了二、三、四階的有理數諧波鎖模脈沖。
  10. In chapter 5, constant modulus algorithm ( cma ) is a well - known blind adaptive beamforming method as it requires no pre - knowledge about the signal except that the transmitted signal waveform has a constant envelope

    在實際的無線環境中，隨著用戶的激增，通信環境日趨惡劣，這就要求波束形成演算法在強干擾的環境中，仍然能夠快速而準確的收斂于期望信號。
  11. The second part emphatically analyzes the operating ideas and marketing modes of two famous education companies in the world - - - apollo education group and mckinsey corporation, to use for reference. in the third part, i analyzes the current operating situation of chengdu hengzhi education corp. ltd., points out the problems and difficulties which it faces in the fierce market competition, analyzes the microcosmic environment which it is under through tools like swot, and determines its marketing strategies. the forth part is the core of this paper, in which the special marketing mode - - - linking the production character with the service cha racter of education is set up, using the marketing modes of apollo and mckinsey for reference and combining the current environment and consumer ' s demand this paper systematically constructs the marketing strategy of hengzhi education corp. ltd. and sets up the marketing mode for the training trade which is suitable for the west region in china

    本論文共包括四個部分，其中第一部分對培訓行業所處的國際國內環境進行了描述和分析，包括國外教育產業化的發展進程、教育產業目前的主要體現形式、國內教育行業的現狀及發展趨勢等；第二部分著重分析了全球最知名的兩個教育公司? ?阿波羅教育集團和麥肯錫公司? ?各自的經營理念和營銷模式，以資借鑒；在第三部分中，我對成都恆知教育公司的運行現狀進行了分析，並指出其在激烈的市場競爭中遇到的問題和阻礙，同時通過swot分析等工具對恆知公司所處的微觀環境進行了分析，確定了公司的營銷戰略選擇；第四部分是這篇論文的核心部分，通過對阿波羅和麥肯錫兩家公司營銷模式的借鑒，結合公司所處的環境及客戶的需求，建立了將教育的產品性和服務性相結合的特有的營銷模式。
  12. ( 3 ) ln the fourth chapter of this dissertation, a tunable single - longitudinal - mode erbium doped fiber ring laser is achieved by using the very narrow bandpass characteristics of the self written grating formed in a section of erbium doped flber withoat undergoing pumping by stable standing wave in it. tl1e tunable laser ' s wavelength tuning range is 40nm, from l 523. 79llm to l563. 92nm

    三、在本文第四章，利用駐波干涉和飽和吸收誘發的自寫入光纖光柵的窄帶濾波特性及反射波長自適應特性，研製成可調諧摻鉺光纖環形腔單頻激光器，其波長連續可調諧范圍達40nm （ 1523 . 79nm ?安激大學碩士學位論文摘要1563
  13. Pressure wave refrigerator is a new kind of refrigerating equipment using the shock wave movement to transform gas pressure energy into heat energy. it has been widely used in industrial areas for many advantages

    壓力波製冷機是一種依靠激波運動將氣體壓力能轉變成熱能並將熱量形式傳給環境而產生冷效應的一種新型製冷設備，應用前景廣闊。
  14. The paper presents a new scheme of wavelength conversion, which based on fiber ring semiconductor lasers ( frsl ). its configuration and operating principle are demonstrated

    本文提出一種基於光纖環形腔半導體激光器（ frsl ）的波長轉換方案，闡述了其結構模型和工作原理。
  15. 4. the fundamental principles of both the linear cavity fiber laser and the ring cavity fiber laser and the stability criterion for multiwavelength oscillations are introduced. several kinds of techniques to achieve mulitwavelength oscillations are summarized

    4 .介紹了線形腔光纖激光器和環形腔光纖激光器的基本理論以及多波長激光器穩定振蕩的條件，並總結了幾種實現多波長摻鉺光纖激光器的穩定振蕩的方法。
  16. 4. a novel structure l - band erbium - doped fiber ring laser is demonstrated, which has much improved the performance of l - band fiber ring laser

    4 .提出了一種結構新穎的l -波段環形腔摻鉺光纖激光器，有效的提升了l -波段鉺光纖激光器的性能。
  17. The former has compact structure ;, little cavity loss, higher coupling efficiency, and higher superposition efficiency. but there is no enough room for other devices. the latter overcome this problem, but the diffraction loss and mirror loss is increased

    六鏡環形諧振腔可以確保角度很小，但總腔長較長，腔內衍射及腔鏡吸收和不完全反射造成的損耗較大，同樣很難得到穩定的雙波長激光輸出。
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