amplification range 中文意思是什麼

amplification range 解釋
放大范圍
  • amplification : n. 1. 擴大；擴充。2. 【電學】增幅，放大（率）。3. （聲明等的）補充材料。
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  1. Sixties primers were used for dna amplification and a total of 237 amplification products range from 450bp to 2500bp were generated. a similarity matrix for all pairwise comparisons was calculated using nei and li ' s formula and then transformed to distance matrix. dendrograms were constructed by applying unweighted pair - group arithmetic average ( upgma ) and neighboring - jointing cluster analyses using the phylip software

    在第二部分，應用改進的ctab法提取了石蓴屬和滸苔屬各3個種及作為對照的剛毛藻的基因組dna ， 60個引物被用於擴增，共獲得237個片段大小在450 - 2500bp之間的擴增片段，依據nei和li （ 1979 ）的公式計算出樣品成對比較的相似性距陣並換算成遺傳距離，應用phylip軟體包，按照upgma法和n - j法分別構建聚類圖。
  2. Taking protective measures can obviously reduce the face slab ' s surface temperature drop - out range and the maximum principal stress amplification caused by temperature sudden drop, and the stronger protective measures are, the more obvious reduced effect is

    採取保護措施，可以明顯削減氣溫驟降所產生的面板降溫幅度及最大主應力增幅，保護措施越強其削減效果越明顯。
  3. In chapter three, genomic dna were extracted from four individuals from sinotubimorpha porracea and grateloupia filicina, respectively and from g. livida as a control. sixties primers were used for dna amplification and a total of 120 amplification products range from 250bp to 2500bp were generated. distance matrix and dendrograms were obtained as described in last paragraph

    在第三部分，應用ctab法提取了管形藻、蜈蚣藻各4個個體及作為對照的舌狀蜈蚣藻的基因組dna ， 60個引物的rapd分析獲得120個片段大小在250 - 2500bp之間的擴增片段，遺傳距離和聚類分析同前。
  4. The injection - locking technology, characterized by the frequency stabilization, amplification, modulation and etc, has been widely used in the small - signal recovery, frequency synchronization, power synthesis, phase modulation and etc in the microwave, millimeter wave and higher frequency range communication and phased - array systems

    注入鎖定技術具有穩頻、放大、調制等特性，已被廣泛應用於微波毫米波以及更高頻段通信和相控陣系統中的小信號恢復、頻率同步、功率合成、相位調制等。
  5. The laser beam spot evolution and electron density in the guiding range are evaluated with the burn pattern and the measured conductivity. the above results will be useful in ultrashort laser pulse amplification and future research in ultrashort intense laser propagation in plasmas and ionizing gases

    以上研究結果對于超短脈沖激光放大技術研究以及超短超強脈沖激光在低密度等離子體和空氣中長距離傳輸和聚焦研究等具有重要的實用參考價值。
  6. Abstract : to decrease nonspecific products and obtain clear rapd patterns, 18 10 - mer random primers were tested at different annealing temperatures. the results indicated that all the amplification can be performed when the annealing temperature is in the range of 40 ~ 50. there were a few primers with which the amplification was still performed when the annealing temperature is above 60. by using high annealing temperatures, some primers which produce more nonspecific product at the annealing temperatures of 35 ~ 38 could generate reproducible and distinct bands

    摘要用38 66不同復性溫度處理，比較了18條隨機引物的擴增結果.發現復性溫度在40 50之間均有數量不等的擴增產物，不同引物的最高復性溫度不同，有些引物用60以上的復性溫度仍有擴增產物.一些在35 38的復性溫度下非特異性產物較多的引物，通過大幅度提高復性溫度，能提高擴增產物的特異性，獲得清晰的rapd帶型。
  7. The hemaglutinin ( ha ) of aiv plays the key role in determing the pathogenicity, cell receptor binding property and host range of the virus. the homology of the ha sequences reported and registered in genbank of different strains of h _ ( 5 ). h _ ( 9 ) subtype was respectively analyzed and compared with each other. the conservative domin of ha seqence of h _ ( 5 ), h _ ( 9 ) subtype was selected for pcr amplification. two sets of specific primers were designed

    本研究根據genbank中查出的禽流感病毒h _ 5亞型，禽流感病毒h _ 9亞型的ha片段基因組序列，利用dnasis軟體分別對aiv的h _ 5 、 h _ 9亞型ha基因區域進行同源性比較，設計篩選出兩對聯合pcr反應的特異性引物，其中一對是h _ 9亞型通用引物，擴增出ha片段695bp ，另一對引物為h _ 5亞型的通用引物，擴增出的ha區域部分目的片段約為448bp 。
  8. 2. one voltage controlling manner is presented. this manner combines amplification and attenuation, and fine control and coarse control can be operated separately, it can adjust the amplitude by 1mv step in the range of 50mv to 10vpp conveniently

    2 .提出一種放大與衰減相結合，精細控制和粗略控制分別進行的電壓控制方式，可以方便地實現信號幅度在50mv ? 10vpp之間以1mv的步進改變。
  9. 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。
  10. This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination

    本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
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