gain amplification 中文意思是什麼

gain amplification 解釋
增益放大
  • gain : vt 1 獲得；博得，掙得；贏得，打勝（戰爭、官司）。2 吸引；爭取…（到一邊），說服。3 （尤指通過努力...
  • amplification : n. 1. 擴大；擴充。2. 【電學】增幅，放大（率）。3. （聲明等的）補充材料。
  1. Simulations of gain and aberrance are done to study the amplification of pulse signal with a frequency of 0. 25mhz

    對頻率為0 . 25mhz的脈沖信號放大進行了模擬，分析了其增益和脈沖畸變隨放大參量的變化情況。
  2. Optical amplification in the random gain media

    光在隨機增益介質中的放大
  3. The theoretical part mainly refers to studies of optical parametric chirped pulse amplification. we analyze some basic theories of opcpa, such as phase matching, parametric bandwidth, walk - off in space and time, gain property and so on, and compare the basic properties of bbo, lbo and kdp

    理論部分主要是對新興的光參量啁啾脈沖放大技術的相位匹配、參量范圍、時空走離、增益及帶寬特性等基礎理論進行了分析，並對常用的bbo 、 lbo和kdp基礎特性進行了比較分析，這對于光參量啁啾脈沖放大系統的設計具有一定的實際意義。
  4. Extraction of large - fragment genomic dna in order to gain dna template of pcr amplification ( long pcr amplification and salvage pcr amplification ) which was high purity and large fragment, three methods were used to extract genomic dna of bacillus subtilis, i. e. low melting - point agarose embedding method, sds - proteinase k - phenol chloroform extraction method and bacterial genomic dna extraction kit method. the genomic dna of bacillus subtilis were gained by these methods, and the operated programs of the methods were improved. the results showed that the genomic dna extracted by low melting - point agarose embedding method were obviously biggest than that of another two methods

    大片段基因組dna的提取為了獲得用於pcr擴增（長距離pcr擴增和分段pcr擴增）的高純度、大片段（至少為pcr產物長度的4倍）的dna模板，應用三種方法：低熔點瓊脂糖包埋法， sds -蛋白酶k -酚氯仿抽提法和細菌基因組dna提取試劑盒法，分別提取獲得了枯草桿菌基因組dna ，並對3種方法的操作程序進行了不同程度的改進，結果表明：低熔點瓊脂糖包埋法提取的基因組dna片段明顯大於后兩種方法，採用0 . 5瓊脂糖凝膠電泳3h ，仍然跑不出加樣孔。
  5. The maximum gain - before - feedback is the most amplification of the sound before the sound system goes into feedback and starts squealing

    最大反饋前增益，就是音箱開始嘯叫，或者出現振鈴效應時候的增益。
  6. In chapter 5, we make numerical calculation, then analyze the properties of the population distribution, the gain, the coherence term and population difference, and validate the transient light amplification mechanism of this system

    第五章我們根據數值計算結果分析了粒子數分佈、增益、相干項和粒子數差的瞬態演化過程，驗證了系統產生增益的機制。
  7. 4. pulse signal is researched when amplified by edfa. for signal with a frequency of 10 khz, the gain is about 3db higher than sequence signal amplification, but in time domain, aberrance occurred with the amplified signal

    4 .建立了edfa非穩態放大模型，對頻率為10khz的脈沖信號進行了實驗分析，結果表明，其小信號增益比連續光放大提高了3db ，但輸出脈沖存在畸變。
  8. The amplification characters of er3 + / yb3 + co - doped fiber are studied in our experiments. when the doped fiber length is 50cm, the amplified signal power is 170mw and the gain is 12. 2db in the case of signal power of 10. 8mw and pumping power of 2. 5w

    本論文著重研究了採用一級放大時，信號光在雙包層光纖中的放大特性，截取50cm的光纖，在輸入泵浦光功率為2 . 5w ，信號光功率為10 . 8mw時，獲得了170mw的放大信號光輸出，增益為12 . 2db 。
  9. A dfdl model including gain saturation effects is developed and this model is used to study the fluctuation of the pulse width theoretically, which is identical to the experiments. in order for ps pulse amplification, the saturation fluence for krf at 10 ps and gain of the discharge krf laser are monitored. 4

    開展了10pskrf激光在空氣中的傳輸實驗研究，計算了自導引區內的閾值光強，觀測到光束自聚焦和自導引現象，測量了自導引區域內的等離子體密度，並對激光脈沖的傳輸演化進行了分析。
  10. 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。
  11. The results show that there is gain narrowing when pump is gaussian temporal profile and it ' s pulse width close to signal ' s and that the spectrum extended in the case of saturated amplification when pump is near top - hat temporal profile

    在泵浦光為高斯時間波形且脈寬與信號光差不多時，出現增益窄化；而當泵浦光近似為時間平頂時，飽和放大后光譜增寬。
  12. Research on gain of doped photonic crystal fiber with raman amplification of soliton

    準周期結構一維光子晶體的帶隙特性與濾波特性
  13. 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。
  14. Ytterbium ( yb ) - doped silica fibers have a broad - gain bandwidth ( 850 ~ 1050nm ), excellent power conversion efficiency, and a broad - absorption bandwidth ( 900 ~ 1200nm ). their ability to provide amplification over the very broad wavelength range from ~ 975nm to ~ 1200nm is expected to generate increasing interest in the near future. they offer an almost ideal gain medium for the fiber lasers and fiber amplifiers that work at the wavelength around 1 m

    摻鐿石英光纖具有幾個方面的優點，如能級結構簡單，與摻er3 + 、 nd3 +等稀土離子的光纖相比，不存在對泵浦光或信號光的激發態吸收（ esa ） ，可以有更高的摻雜濃度;有較寬的吸收光譜（ 850 ~ 1050nm ） ，可以利用多種泵浦光源來設計泵浦方案;輻射光譜寬（ 900 ~ 1200nm ） ，激光輸出波長可以有很寬的可調諧范圍。
  15. The paper primarily researches a kind of nonlinearity of fiber - the effect of srs ( stimulated raman scattering ) to wdm ( wavelength division multiplexing ) system and the gain and noise properties of fiber raman amplification exploited with srs

    本文主要研究了光纖中的一種非線性效應?受激喇曼散射對數字波分復用傳輸系統性能的影響，以及利用它所開發的光纖喇曼放大器的增益和噪聲特性。
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