threshold potential 中文意思是什麼
threshold potential
解釋
臨界電位-
In this paper, micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed, the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model. the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser, the layer refractive index and pair number of bragg mirror, thickness, position and oxidized material ' s refractive index of oxidized aperture, in detail. more practically, considering dos shell of laser as non - perfect one, or supposing that dos shell is separated from the laser, we can obtain more significative results
本工作以矢量場模型出發，對具有誘人應用前景的柱形垂直腔面發射結構（ vcsel ）的微腔半導體激光器（ mcsl ）進行了理論分析，建立了用於分析方柱形和圓柱形結構具有氧化孔徑層的激光器的模式特性的理論模型；對圓柱形結構情況進行了數值模擬，得到了振蕩波長、閾值增益隨激光器內外半徑、 bragg反射鏡層折射率、周期數以及氧化孔徑層厚度、位置和氧化物折射率的詳細變化規律；為使理論計算更接近實際，將外加金屬包殼視為非理想導體，或將金屬包殼與激光器結構隔開，分別對這兩種情況下的結果進行了討論。 -
Different labeling policies are not based on the scientific risk assessment, rather it lies on different political, economic and trade considerations. in this paper, labeling regulations in different countries and territories are reviewed including : the type and scope, the threshold level and exemption, the content of labeling, and the negative labeling for non - gm products. the problems and potential impacts of labeling system on gm products are discus
本文在分析不同國家和地區轉基因產品標識管理政策的基礎上，從標識類別、標識范圍、標識閾值及豁兔政策、標識內容和陰性標識五個方面，對不同國家和地區的標識管理政策進行了比較，並對標識管理中存在的問題進行了分析。 -
The principle advantages of vcsels over conventional edge - emitting lasers lie in ultralow threshold current, small far - field divergent angle, high modulation frequency, potential for wafer level testing and the ease for single longitudinal mode operation and two - dimension integration. as a result they show considerable promise for applications such as optical fiber communication, parallel optical interconnects, optical information processing and neural networks, etc. a direct coupling theoretical model in quasi - three - dimension for the gain - wave guide vertical - cavity surface - emitting lasers has been created in this paper
它與傳統的邊發射激光器相比具有更優越的特性，例如，具有極低的閾值、較小的遠場發散角、調制頻率高、易實現單縱模工作和二維集成，無須解理封裝即可進行在片測試等，所以，它被廣泛應用於光纖通訊、并行光互聯、光信息處理、光神經網路等領域。 -
It is shown that the results calculated using the ccdwa are agreement with one of the accurate quantum mechanics employing the same potential. quantum mechanical tunneling is important in near threshold, and classical trajectory calculation is not good for prediction of the cross sections. the reaction cross sections calculated using different potentials is different, which show that the investigation of reaction cross section can provide evidence for test of accuracy of the potential energy surface
研究發現：勢能面相同時用ccdwa方法計算的截面和公認精確的量子力學結果比較符合；閾能附近的量子力學隧道效應較為顯著，準經典彈道方法不能很好的預言其截面；用不同勢能面計算的反應截面有差別，說明反應截面的研究能為檢驗勢能面的準確性提供依據。 -
Under a unified model of carrier transport over trap state established potential barrier at drain side, device degradation behavior such as asymmetric on - current recovery and threshold voltage degradation can be understood
我們通過載流子在漏極附加陷阱態勢壘的輸運模型，解釋了器件在應力后出現的閾值電壓的退化現象和非對稱性開態電流恢復現象。 -
In order to evaluate the eco - economic adaptability of crops production, the concepts and calculative methods of ecological potential capacity and market potential capacity were put forward, the dynamic threshold value system of the indexes for the economic adaptability of different crop - region combinations was established, the calculative method of the single eco - economic adaptability indexes, the comprehensive eco - economic adaptability indexes which reflects the principle of minimum factor and the apparent eco - economic adaptability indexes and the regional comprehensive apparent eco - economic adaptability indexes which reflects practical situation of crops production were built up. 12 representative counties in jiangsu province were selected to analysis, and 77 combinations of eco - economic adaptability indexes, apparent eco - economic adaptability indexes of crop - region and 12 regional comprehensive apparent eco - economic adaptability indexes were obtained
摘要為評價作物生產的生態經濟適宜性，提出了生態容量潛勢和市場容量潛勢的概念和計算方法，建立了適用於不同作物地區組合的、各指標閾值具有動態性的生態經濟適宜性評價指標閾值體系，構建了單生態經濟指標適宜性指數及反映最小因子定律的綜合生態經濟適宜性指數、表現作物生產現狀的表觀生態經濟適宜性指數和地區綜合表觀生態經濟適宜性指數的計算方法。 -
The main contents of this thesis include : ( 1 ) summarize and analysis of the theories on vibration transmission through rolling element bearings ( 2 ) based on the threshold setting and signal ’ s statistical approach, a method for solving the problems of denoise was developed ( 3 ) using sparsity and clustering, the method and hypotheses for underdetermined blind source separation was studied ( 4 ) the method based on potential function clustering was given for underdetermined blind source separation of noisy signals based on the assumption that the input distribution is sparse and the mixture procedure is linear, the attenuation matrix and the delay matrix were estimated by clustering. the approach was experimentally illustrated for the case of m = 2. the separation of the signals from bearing test bed proved that the given methods are available and reliable
在需求分析和研究現狀分析的基礎上，本論文針對如下內容進行了重點研究: （ 1 ）以滾動軸承為例，對旋轉機械振動信號的傳輸進行了歸納分析; （ 2 ）通過設定某一門限並研究信號間的統計特性，研究了旋轉機械振動信號的盲源分離過程中噪聲消減策略; （ 3 ）應用稀疏信號分析和聚類分析方法，對盲源分離中欠確定問題的假設條件進行探討並對分離方法進行了分析; （ 4 ）採用基於勢函數聚類分析的方法，研究了欠確定前提下含噪聲測量過程中信號盲源分離方法。 -
We also, discuss the features of a single charge soliton in detail, such as peak potential, peak width, threshold voltage and their dependences on the array parameters
文中還詳細討論了單電荷孤子的峰高、峰寬和閾電壓等方面的特徵以及它們隨結鏈結構參數的依賴關系。 -
Lastly establish theoretical, industrial threshold value of organic enrichment of source rocks and grading evaluation criterion under different source rocks thickness, hydrocarbon potential, superface depth conditions
建立了不同厚度、不同生烴潛力、不同頂面埋深條件下烴源巖的有機質豐度理論下限、工業下限及分級評價標準。 -
Photorefractive phase conjugation, which is one of the most important methods for producing phase conjugation wave, is of potential use in many fields due to its low build - up threshold, high fidelity and high damage threshold, etc. in this thesis, we present a complete research to the characteristics and applications of ce : bati03 self - pumped phase conjugation ( sppc )
光折變位相共軛具有建立閾值低、保真度高和大損傷閾值等優點，因而具有廣泛的用途。在本論文中，我們針對ce ： batio _ 3晶體光折變自泵浦位相共軛器的特性和應用做了全面深入的研究。 -
The threshold for pain, tissue damage, and potential hearing loss in humans is 120 decibels
120分貝是人類感到痛苦、組織受損、造成潛在的聽力喪失的下限。 -
Finally in this part, a system of concepts raised from the theory of " potential energy " is proposed by new concepts such as tool of " potential energy ", threshold of " potential energy ", field of " potential energy ", current of " potential energy " and array of " potential energy "
本文的重點是將「勢能」這一概念拿到藝術領域中，力圖從「勢能」的角度去審視藝術的創作問題，在此主要提出了勢能分析理論的概念系統，即勢能分析理論的新概念：勢能具、勢能閾、勢能場、勢能流、勢能陣。 -
The eyes can be considered as a salient and relatively stable feature of faces, so firstly eyes - analogue regions in cluttered images are segmented using local adaptive threshold edge detector. then the small eye - analogue regions are grouped together and labeled using a traditional labeling process according to their geometrical and color features. instead of finding potential eye - pairs from eye - analogue regions one by one, all possible pairs of eyes are encode as the solution, and the potential face are searched by gas
新意之處：利用膚色是一種感知現象的特性以及神經網路的強大感知、學習功能，採用進化神經網路對膚色進行感知和分類；以眼睛的幾何和周邊的膚色特徵分割眼睛塊，克服了在完整的膚色區域內檢測人臉方法的局限性；對候選眼睛對的編號而不是人臉在圖像中的位置、人臉的尺度和方向進行編碼，使遺傳演算法用於人臉定位時的問題空間得以大大簡化，採用一個新穎的眼睛及臉頰部位的灰度投影及膚色模板驗證，可以實現多尺度、任意方向的正面人臉檢測，實驗結果令人滿意。
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