light threshold 中文意思是什麼
light threshold
解釋
光閾,無色閾-
Just below threshold, consistel1t to theoretical analysis, there are numbers of comb - like narrow linewidth lights due to resonating of ifltr8 - cavity ase light. novel experimental results of the erbium - doped - fiber ring resonator behaviors operating near threshold are reported in the chapter
首先理論分析了當有源環形腔無注入光，且有源光纖環形腔在閾值以下時，由有源腔內ase輸出光表現出的腔輸出特性。 -
( 2 ) ln the third chapter of this dissertation, the behaviors of intra - cavity amplified spontaneous emission ( ase ) light in the active fiber resonators are firstly studied by both theoretical and experiment8l ways, when it is operating near the threshold
二、在本文第三章中，研究無注入光時，通過分析腔內ase光輸出特性來研究有源光纖環形腔在近閾值點附近的濾波特性。 -
In this thesis, we demonstrate the study of si - based light emitting materials and its importance in si - based photonics integration. we discussed mainly the gain, differential gain, threshold current of si - based quantum - dot laser and the dependence of threshold current on temperature from discrete energy level of three - dimension confined quantum - dot and state density distribution of 5 - function
本文闡述了si基光發射材料的研究進展及它在硅基光電子集成中的重要地位，從三維受限量子點的分立能級和函數狀的態密度分佈入手，著重討論了si基量子點激光器的增益、微分增益、閾值電流及閾值電流的溫度特性。 -
A glimmer of factory means, because of higher times soon light dish slice situation for having the attestation problem, for small factory and speech, threshold and customer s threshold of its technique will more increasing, light dish slice big trend of property the big will more obviously, future even appearing reduce pricing the competition, and also can t such as the past cd - r the property eliminate of horrifying
一線廠商表示，由於更高倍速光盤片有認證問題，對于小廠而言，其技術門檻及客戶門檻將更提高，光盤片產業大者恆大的趨勢將愈趨明顯，將來即使出現殺價競爭的情形，也不會如過去cd - r產業淘汰時的慘烈 -
At first, bubble flow image is acquired using laser and incandescence lamp respectively as light source and using ccd. according to different optics - dispersion character, threshold segmentation method is proposed to identify gas from the gas - water flow, which make steadfast base for further calculate void fraction. the precision of threshold directly affect the calculate precision of void fraction
文中分別採用激光片光源和影視燈照明，採用逐行掃描數字ccd攝像機獲取氣泡的流動圖像；根據氣泡和水對光的反射特性不同，提出採用閾值法識別圖像中的氣泡和水，從而為進一步計算摻氣濃度打下堅實的基礎。 -
The reaction of threshold on linewidth of ring ' s output light is pointed out. this provides a new auxiliary method to determine the threshold
最後提出一種利用有源腔內ase輸出光的線寬變化特徵來判斷有源光纖環形腔閾值點的輔助方法。 -
To analyze some key technologies of optical network relative with rwa in detail, such as transmission, switching and internetworking ; to emphasize on the research of function, fabric and performance of optical cross - connection ; to carry out numerical simulations for crosstalk introduced by optical cross connect and to present measurements for suppressing it such as doubly filtering, fixing optimum decision threshold and appropriately choosing the number of multiplexed wavelengths ; 3. to research the fundamental principle and some problems relative with rwa, including the type of optical network, the type of traffic, the type of service, the survivability of optical network ; to classify and compare rwa algorithms and particularly research some dynamic rwa algorithms ; 4. to present reserved light - path and classify network resource such as used, unused and reserved status, to emulate establishment of all - optical connection in optical network through modified rwa algorithm and show effectively reducing setup time of all - optical connection utilizing reserved light - path ; to research rwa algorithms of multi - fiber network, to present new link weight functions dependent on node degree, unused fiber ( s ) per wavelength - layer and routing policies, to perform emulation of rwa based wavelength layer graph applying new link weight functions and show them make algorithms better performance and network lower blocking rate ; 5
詳細分析了與rwa相關的光網路關鍵技術，包括傳輸、交換、組網等，重點研究了光交叉連接的功能和結構、性能，對其引入的串擾進行了詳細分析，選擇恰當的器件參數進行了數值模擬，並提出了抑制措施（如雙重濾波、優化判決門限、選擇恰當的復用波長數） ; 3 .研究了光網路的r認叭的基本原理、與r認叭的幾個相關問題（光網路類型、業務類型、流量類型、光網路生存性） 、 r認人演算法的分類和比較，具體研究了幾種動態r場人演算法; 4 .研究了以全光連接建立時間為優化目標的r認認演算法，提出預置光路的概念，對網路資源進行狀態分類（佔用、未佔用、預置） ，利用改進的r認叭演算法模擬，預置光路可為部分新到的連接請求快速建立連接，從而提高網路性能;研究了以多光纖網路連接阻塞率為優化目標的r認城演算法，提出了以節點度數、每個波長分層的空閑光纖數以及路由策略決定的幾種鏈路權重函數，利用基於波長分層圖模型的并行r場人演算法模擬，利用新的鏈路權重函數使得演算法具有更優的性能，使網路具有更低的連接阻塞率。 -
Because of their fine extinction ratio and high anti - light - damage threshold value, laser - polarizing prisms are popular among workers in science and technology field
激光偏光棱鏡，以其優良的消光比性能和高抗光損傷閾值性能，倍受科技工作者歡迎。 -
Among those nonlinear effects, stimulated brillouin scattering has the worst effects on the fiber hydrophone system due to its low threshold and it produces a new light wave which is different from the incident light in frequency. this dissertation discusses the physical mechanism and quantum explanation of sbs in fiber
在眾多非線性效應中，由於受激布里淵散射（ stimulatedbrillouinscattering ）效應的閾值最低，且產生了與入射光場不同頻率的新的光場，故對光纖水聽器系統而言，影響最大的即是受激布里淵散射效應。 -
On this basis, a model of pulse damage threshold fth ( j / cm2 ) was proposed. calculations on pulses of three different envelope shapes indicate that, with the same pulse duration, wavelength and incident light intensity, fth of pulse with gaussian envelope is higher that that of the pulses with hyperbolic secant and lorentzian envelope, i. e. gaussian pulse would need a little higher intensity to induce breakdown than the other two
在這個基礎上，提出了一個研究脈沖破壞閉值的模型，對三種不同包絡脈沖的分析表明，在相同的脈寬、波長和入射光強下，高斯脈沖的破壞閉值較高，雙曲正割和洛侖茲脈沖的破壞閩值相對較低，即高斯脈沖最不容易對介質造成破壞。 -
In the uv light region, the absorption dramatically increases that is caused by the absorption of the films substance, hi addition, as the heat treatment temperature increases the absorption threshold slightly occurs " red shift "
在紫外區，薄膜的吸光度急劇增大，而且，隨著熱處理溫度的增加，吸收閾值發生輕微的「紅移」 。這種降低是由於薄膜物質的吸收所致。 -
We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s
根據能量動量守恆關系和clbo的色散方程，詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬，並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。 -
The special edition of speed display unit, alarm and warning light will be activated when traveling speed over threshold speeding limit
超速提示器，是車輛行駛顯示記錄儀的精簡版，尺寸小巧，用於有安全需要的單位或個人，降低交通事故發生率。 -
Speedtrol speed display unit is an interactive monitoring device, which not only record the traveling data, but also display the real time traveling speed on led display. the speeding alarm and warning light will be activated when the traveling speed is over the threshold speeding limit
顯示並根據設置提示超速，並能記錄和存貯車輛行駛過程中的各種參數-車速超速日期時刻開車時刻停車時刻行駛里程行駛時間等狀態。 -
Green - mode which provides off - time modulation to linearly decrease the working frequency under light - load conditions and power limiting which will turn off the transistor when peak current of inductor reaches the threshold current
同時該電路集成了能在輕負載情況下自動降低頻率的綠色模式以及能在電感峰值電流過高時關斷調整管的功率限制模塊，降低了系統的功耗。 -
This article introduces the process and requirements of detection set by iaea in the light of the need for detection, setting of investigation levels and alarm threshold, selection of instrument, location and evaluation of radioactive materials
本文從探查需求分析、調查水平和報警閾的確定、儀器選擇、探測報警、核查定位、鑒別等幾個方面介紹了對非法運輸放射性物質進行探查的一般過程和要求。 -
Adopting the amendatory rate equation, the threshold of the micro - cavity has been studied and the conclusion is shown as following : if there is not non - radiation transition, the pump velocity just need to compensate the photon velocity escaped from the cavity, and the intensity of output light will direct ratio to the intensity of input light then we got a micro - cavity laser with no threshold
採用修正的速率方程對微腔激光器的閾值進行研究，得到如下結論：在沒有無輻射躍遷時，激光器的泵浦速率只需恰好補償光子向腔外的逃逸速率，輸出光強隨著輸入泵浦光強性線增加，實現所謂的「無閾值」激光器。 -
In this paper, some investigation and design as following. have been carried out on er - yb codoped phosphate glass waveguide laser first, three primary performance parameters of er - yb waveguide laser pump threshold power ; output power and slope efficiency have been commulated and analysed theoretically based on er ~ ( 3 + ) - yb ~ ( 3 + ) energy configuration ; rate equation of stable state and transmitting equation. the influences of er - yb ions concentration ; enabled waveguide length ; light dot radius of signal light and pump light ; reflectivity of output lens on three above parameters have been researched
首先，從er ~ （ 3 + ） - yb ~ （ 3 + ）能級結構出發，結合激光穩態速率方程與傳輸方程，對鉺鐿波導激光器的三個主要性能參數:閾值功率、輸出功率、斜率效率作了理論計算分析，並研究了鉺、鐿離子濃度、光波導激活長度、信號光與泵浦光光斑半徑比例、輸出耦合鏡反射率對這三個關鍵性能參數的影響。 -
Although each light dish slice situation for pressure for big factory all not speech, this year dvd - r light dish slice containing price drop, in fact, current the united states ce consume electronics exhibition, already appearing a price mess, however, the big factory all mean, on the other hand, the dvd demand quickly promote, although the price drop, the factory measure empress, earning, accrual will still increase ; on the other hand, big factory will then announce new products, the light dish that higher times are soon slice, increase to compete the threshold, then reduce to reduce price to impact factory earning, accrual. because of the dvd light dish slice period for of technique, funds. etc
雖然各光盤片大廠均不諱言，今年dvd - r光盤片有跌價的壓力，事實上，目前美國ce消費電子展，已出現通路品牌光盤片價格紊亂的情形，不過，大廠均表示，一方面， dvd需求量快速提升，雖然價格下滑，但是廠商擴量后，營收獲利仍將正增長另一方面，大廠將以推出新產品，更高倍速的光盤片，提高競爭門檻，以減少殺價對廠商營收獲利的沖擊。 -
Discussions about how segment and bin sizes effect on the cloud masking show that it is appropriate to chose 32x32 as segment size, using automatic and dynamical threshold algorithm, cloud - contaminated pixels are masked on gms5 images, fy2b raw images and images wiped off stray light
根據所求出的閾值，對每個像元陣內的逐個像元進行雲判識。若某個像元在紅外和可見光兩個通道中的任何一個被判識成雲，則該像元為雲像元。
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