amplification ratio 中文意思是什麼

amplification ratio 解釋
放大比率
  • amplification : n. 1. 擴大；擴充。2. 【電學】增幅，放大（率）。3. （聲明等的）補充材料。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. At first, 1. 67 u g per well mcab all was coated on three wells of a plate, and then 1. 5 x 1011 phage virion was diluted and added, after incubating with the target, wash away unbound phage by tbst ( 0. 1 % tween - 20 ), the bound phage was eluted with ph 2. 2 tris - gly buffer and amplified, the specially bound phage was enriched by taking through addition binding / amplification cycles. ln the following cycles, the stringency of panning can be increased by raising the concentration of tbst or decreasing that of mcab all, collecting and titering the washing phage of last time and output phage in each round, the selective ratio and the false positive rate of each round were worked out, the gradually increasing of selective ratio and decreasing of positive rate shows that the panning was effective. after 4 rounds of panning, 11 phage clones were selected after competitive - ellsa, the dna samples of 8 positive clones and 1 negative clone were sequenced and all the foreign peptides inserted was also deduced, a clear consensus binding sequence emerged

    在本實驗中，利用隨機12肽庫對抗豬瘟病毒（ classicalswinefeverviruscsfv ）糖蛋白me2的單抗a11進行表位篩選，經過四輪篩選以後，隨機挑取11個克隆作競爭- elisa檢測，結果表明，所挑11個克隆中，有9個克隆能對me2蛋白和a11反應產生抑制作用，抑制率最高可達64 ； dna測序以後經過dnastar軟體分析，發現它們的核心序列為anwralsl ，該核心序列與豬瘟病毒e2蛋白的28 - 35位氨基酸ttwkeysh具有同源性；夾心- elisa檢測和western - blotting試驗均證明所挑陽性克隆能被a11所識別；人工合成含核心序列的多肽經間接elisa試驗證實，也能被a11識別。
  2. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  3. Krf excimer is the best medium in uv ultra short pulse amplification for its small saturation energy and high contrast ratio accessible

    它具有波長短（ 248nm ） ，頻帶寬（ 3thz ） ，工作介質的非線性效應小，能量轉換效率高等優點。
  4. To guarantee the stability of the frame in strong earthquake motion, and on the basis of analysis on the concept of “ capacity design ” in the above three countries seismic design provisions, it is advised that the moment amplification coefficients at the bottom sections of columns for the frame structures in some seismic intensity be increased to reduce the possibility of the frame column yielding. taking the above three countries seismic codes as reference, it is recommended that it be added details of seismic design by using diagonal shear reinforcement to safeguard beams against sliding shear failure, when the positive - negative shear forces are reverse and the ratio is high

    為了保證在大震作用下框架結構的穩定性，借鑒國外規范「柱-梁承載力級差系數」的思想，本文提出了對部分抗震等級的框架結構的柱端抗彎能力增強系數應予以提高，以降低框架柱屈服的可能性;參照國外有關規范的發展，本文建議對于正、負剪力反向且比值較大的框架梁宜增加交叉斜筋，以防止沿垂直裂縫發生嚴重的剪切錯動。
  5. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算，初步建立了一臺實驗系統；採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量，並模擬了相關參數對展寬比的影響，對實驗具有指導意義；評價了再生放大器和多通放大器的優缺點，對放大過程中通常忽略的放大自發輻射現象（ ase ）進行了分析，並提出了相應的解決方法；針對放大過程中出現的增益窄化和增益飽和現象，對輸入種子脈沖提出了一種新的分段頻率調制函數，實現了對增益窄化效應和增益飽和效應的共同抑制；提出了系統的材料（包括放大介質和光路中的普通介質）正是融合高階色散的來源。
  6. Krf excimer is the best medium in uv ultrashort pulse amplification for its small saturation energy and high contrast ratio accessible. this work concentrated on uv ultrashort pulse amplification by discharge pumped and e - beam pumped krf amplifier, and build a high power krf laser system in the feature

    一方面由於它的氣體性質和飽和能量小，在超短脈沖放大過程中的非線性效應小，可以不採用cpa路線而直接將超短脈沖激光放大到10 ~ （ 19 ） w cm ~ 2甚至更高。
  7. At last, in term of the property of wide band of fra, the interference between channels of multi - channel amplification system is discussed. in multi - channel system, the relations between signal - interference ratio and input signal wave power, between signal - interference ratio and the number of channel and between signal - interference ratio and gain of fra have be discussed. the way of restraining the interference is produced

    最後結合喇曼放大器寬帶寬的特性討論了在多通道系統中光纖喇曼放大器的串擾問題，研究了在多通道系統情況下，系統中的信擾比與信號輸入光功率、通道數以及放大器增益之間的關系，並提出了減小此串擾的方法。
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