正向特性 的英文怎麼說

中文拼音 [zhēngxiàngtèxìng]
正向特性 英文
forward characteristic
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 正向 : [電學] forward direction正向傳導 forward conduction
  • 特性 : characteristic（s）; character; performance; features; properties; behaviour; response; character...
  1. Taking the silicon diode as an example, through an analysis of the diode ' s current - voltage characters and the avometer circuit, the writer finds out the reasons for the differences in the amount when measuring the positive direct current equivalent resistance with different ohm grades

    摘要以硅二極體為例，從二極體的伏安特性及萬用表內部電路的角度，分析了用指針式萬用表的不同歐姆檔位測量二極體的正向直流等效電阻時，其值緣何不同。
  2. Moreover, aiming at the location of inclined license plate, we have proposed the algorithm based on gray changing characteristic and orientation field. in this section, we discussed in detail the application of mathematical morphology operator in rough locating objective region and introduced the theory and realization method of orientation field. then we used it to detect inclined angel of objective region, finally we can precisely locate and emendate the inclined license plate based on detection result, and so we provided the favorable foundation for segmenting character

    此外針對傾斜車牌區域的定位分割問題，提出了基於灰度變化特性和方向場計算的定位演算法，其中詳細討論了數學形態學運算元在目標區域粗定位中的應用，重點介紹了方向場計算理論和實現方法，並將其應用於目標區域傾斜角度的檢測，根據檢測得到的結果進行了傾斜車牌區域的準確定位和校正，為后續的字元分割打下良好的基礎。
  3. Based on the close analysis of the influence factors of the vertical bearing capacity, circular aperture extension theory is employed to establish the computing formulas for the pile vertical stress and the foundation vertical bearing capacity, respectively. moreover, with analyzing the features of the calculation parameters such as materials of gunite mortar, jet pressure, diameter of the jet pipe, pile length, pile layout, a design theory for chemical churning pile composite foundation is proposed. then, the variation of the pipe deformation with loads, the deformation coordination of pile and soil are studied

    在此基礎上深入探討了旋噴樁的樁土受力特性及其復合地基的加固機理，從影響旋噴樁復合地基豎向承載力的因素入手，基於圓孔擴張理論給出了樁體豎向應力及旋噴樁復合地基的豎向承載力計算公式;通過對噴射漿液、噴射壓力選取、噴射直徑估算、樁長及樁位設計等各種計算參數的深入分析和研究，提出了一套相應的旋噴樁復合地基設計計算方法;通過計算分析，深入探討了旋噴樁復合地基變形隨荷載變化規律、樁和樁間土變形協調關系、樁土應力比及復合地基壓縮模量的確定，並提出相應的設計方法和修正參數;此外，結合工程應用，對旋噴樁復合地基的施工技術及其現場質量檢測方法進行了較全面的探討。
  4. Schottky barrier diode is a kind of majority carrier device, using the contact barrier formed between metal and semiconductor to work. it has the advantages of low turn - on voltage and high response frequency, compared with pn junction diodes

    肖特基二極體是利用金屬與半導體之間接觸勢壘進行工作的一種多數載流子器件，與普通的pn結二極體相比，它具有正向導通電壓低，響應速度快等優良特性。
  5. The catv charge and control system is mainly composed of the management software 、 the header data modulator and the terminal charge and control equipment. i am responsible for design catv charge and control equipment and test system. the header data modulator is used to encrypt the control single from computer and transmit it into the appointed frequency. the terminal charge and control equipment demodulate out the control single from data modulator and transmit it to the addressing control part, where the demodulated fsk single is received and well - handled by the cpu unit, decode the unauthorized signals and deliver it to the shut point, shut point make use of capability of wideband anf characteristic of shut, then the signal of illegal customer will be turn off and vice versa, the legal customer can receive the normal signal

    前端數據調制器完成對計算機輸出的控制信號加密處理，將指令碼載送到一指定頻率點。終端收費控制器解調出控制信號，送至單片機尋址控制部分。單片機尋址控制部分接收經fsk數據解調器送來的信號，送入cpu單元后，解出不授權信號，然後向關斷部分送入信號，關斷部分利用pin二極體的寬帶工作能力以及關斷特性，實現對非授權用戶或者非法用戶的信號關斷，使之不能正常收視，繳費用戶進行開通正常收視，達到控制用戶通道的管理。
  6. The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes

    本文就是在此背景下，利用金屬波導和單軸晶體的一些特性，結合麥克斯韋方程組和波導的邊界條件，從三種不同的情況研究了光在對稱平面單軸晶體金屬波導（波導層是單軸晶體，兩個波導界面均為金屬）內的傳輸特性，其主要貢獻為，首次解析地得到了這種波導結構下模式場的精確解，並發現了一些有用的特性： （ 1 ）模式場的性質因單軸晶體的性質不同而異； （ 2 ）當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時，波導中傳輸te波和tm波，只不過其主模因單軸晶體的性質不同而異，當波導層介質為負單軸晶體時，波導主模是te波主模，而波導層介質為正單軸晶體時波導主模是tm波主模。 （ 3 ）當單軸晶體光軸位於波導面內時，對于正單軸晶體，波導的主模是橫電波te _ 0模，任何頻率的光波均可激勵該模式；當光波波長滿足一定條件時，波導內傳輸單模，否則，將激勵起高階模式，高階模即匪te波，也匪tm波，而是兩者耦合而成的混合模。
  7. In chapter 5, based on biot ' s theory for anisotropic fluid - saturated porous media, the rayleigh waves in orthotropic non - viscous fluid - saturated porous media are studied

    在第5章中，以biot的各向異性液飽和多孔介質理論為基礎，研究了正交各向異性無粘流體飽和多孔介質中瑞利波的傳播特性。
  8. In chapter 2, based on generalized characteristics theory, characteristic analysis is carried out on the problem of stress wave propagation in orthotropic fluid - saturated porous media under longitudinal impacting

    在第2章中，根據廣義特徵理論，對正交各向異性液飽和多孔介質在縱向沖擊載荷作用下的應力波問題進行了特徵分析。
  9. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  10. Compound fluorouracil injection is a chemotherapy drug with various characteristics of carrier, targeting and increase immunity. the targeting system is able to directly deliver the liposome - coated drug to the lesion then kill cancer cells without side effects

    微脂體針劑是一種具有載體、靶向和提升免疫力等多功能的化學療法用藥，此靶向特性能直接將包覆化療藥物的微脂體針對病灶直接殺死癌細胞而不傷害正常細胞，再者，它也會增加身體免疫力並且無副作用。
  11. 2. the radiant characteristics of the sar images are evaluated, which includes relative calibrations and absolute calibrations of the sar images, corrections of the antenna patterns, and ratio transforms and contrast adjustments of the sar images

    2 . sar定標與其圖像輻射特性評價，包括圖像的內定標和外定標，以及以天線方向圖校正、比例變換和反差調整為內容的sar圖像的輻射校正和增強。
  12. The numerical simulation of axisymmetric two - dimensional shock tube is studied, which has a conical convergent section, and its driving gas is the hot product of hydrogen oxygen detonation. finite volume tvd scheme is adopted and the mesh is local orthogonal. the primitive equations are euler s equations of multi - component flow. the new method of eliminating numerical oscillation at the interface of two materials is extended to two dimensions. the mechanical character of this shock tube is analyzed

    對由前向爆轟產生驅動氣體並具有局部錐形收縮截面的軸對稱激波管利用兩相常比熱完全氣體的歐拉方程組和有限體積tvd格式在局部正交的網格上進行了二維數值模擬。將消除兩種介質界面處數值振蕩的新方法成功地推廣到二維情況。分析了該激波管的力學特性。
  13. Secondly, the neutrality of expectable monetary shocks and unexpectable monetary shocks. thirdly, the shocks of negative and positive monetary supply on real output, that is, the symmetry of monetary nutrality. this dissertation demonstratively proved that above three kinds of monetary shocks all had obvious influences on real output during the sample period from 1993 to 2001, and the money supply does not possess the character of nutrality in stimulating chinese economic growth

    本文的實證表明，無論是一般意義上的貨幣供給沖擊，還是其他非一般意義上的貨幣供給沖擊（預期到的和未預期到的貨幣沖擊，以及正向（擴張性）的和負向（緊縮性）的貨幣沖擊） ，在1993 2001年的樣本期內，均對實際經濟產出具有明顯的影響，說明貨幣在中國經濟增長中不具備中性的特徵。
  14. Presently, cfst arch bridges develop in the direction of large - span and lightweight style, accordingly, investigators and devisers should increasingly attach more importance to their dynamic behaviour, and some typical dynamic matter of bridges, such as seismic response, wind induced vibration, coupled dynamic vibration between bridge and vehicle should not be ignored

    目前，鋼管混凝土拱橋正朝大跨、輕型的方向發展，因此，該類型橋梁的動力特性也日益引起重視，象地震、風振、車振等橋梁的典型動力問題也是該類橋梁所無法迴避的。
  15. Based on this model, it was presented that how to select the thickness of epilayer, the doping concentration of epilayer, schottky contact, the width of pn grid, the depth of pn junction and the doping concentration of pn junction for the trade - off between forward and reverse characteristics

    基於此模型，提出在對正反向特性進行折衷時，如何選擇合適的外延層摻雜濃度和厚度、肖特基接觸和pn結網格寬度、 pn結深度和摻雜濃度。
  16. The same with normal metal film, fe0. 3cu0. 7 ( 500nm ) granular film have positive coefficient of temperature. the negative resistance is observed in fexcu ( 1 - x ) granular film under certain condition. this characteristic of negative resistance is weakened or changed to positive with the change of thickness of film, ratio of fe atom to cu atom, anneal, test temperature

    N ） fecu顆粒膜月一i特性研究發現，極小電流下電阻測量具有不確定性； fe cu矚00川）顆粒膜己與普通金屬薄膜一樣，具有正的溫度系數； f民c山x顆粒膜在一定條件下存在負阻現象，並且隨顆粒膜厚度、鐵銅原子比、退火條件、溫度的改變分別存在負阻特性的減弱或向正阻特性的轉變。
  17. Lastly, aiming at the poor results which all current algorithms do for directional textures, and cannot synthesis texture directly, aiming at the particularity of this kind of textures, we bring forward the conceptions of non frontal parallel textures and frontal parallel textures. by analyzing texture ' s direction through fourier spectrum, we introduce the conception of main direction, and solve the approximation value of texture ' s main direction by discrete approximated approach. by this way, we can synthesis indirectly simple structural non frontal parallel textures

    最後針對現有演算法對帶有方向的紋理合成效果差，無法直接合成紋理圖像的難點，本論文首先提出了非正平行紋理與正平行紋理的概念，分析了它們之間的內在聯系，引入了兩個角度參數來描述紋理的朝向，採用傅立葉頻譜法分析紋理的方向特性，並提出了紋理主方向的概念，本論文引入離散逼近的方法來求解出紋理主方向的近似值，這樣我們就能用一種間接的方法合成簡單的結構性非正平行紋理。
  18. After simulating the reverse recovery characteristics, the forward and backward i - v characteristics, carries distribution and current vectors et al by medici, the optimal design to some key parameters is proposed

    同時對器件反向恢復特性、正反向-特性及載流子分佈、電流矢量等物理量進行了模擬和詳細的機理分析。
  19. The application of mps structure improves the reverse characteristics and preserves the forward characteristics of sbd. and the application of silicon carbide enhances the advantage of mps structure

    Mps結構的應用，在保留sbd正向特性的同時，大大提高了其反向特性，而碳化硅材料的應用更加強化了mps的這一優勢。
  20. The influences of the technics error on reverse characteristic were also investigated

    進行工藝容差及正向特性分析。研究復合結構soildmos的反向特性。
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