放射調制 的英文怎麼說

中文拼音 [fàngshèdiàozhì]
放射調制 英文
emission medulation
  • 放 : releaseset freelet go
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 放射 : radiate; emit; blas; radiation; emission; shooting; shedding; abjection; emanation; effluence
  1. Our previous studies showed existence of apoplast cam in the plant cell and cam had many extracellular functions. so it supposed cam may be one of important extracellular polypeptides and trigger the intracellular signal transduction by binding the receptor. in this study, radiolabelled ligand is used to investigate the binding characteristic of cam and a. thaliana protoplasts. and chemical crosslinking is employed to explore binding proteins in the membrane. at first, ( 35 ) ~ s - cam was produced using ( 35 ) ~ s - labeled amino acid mixture in e. coli. sds - page and autoradiograph indicated high - purified, high - specific radioactivity ( 35 ) ~ s - cam was obtained. electrophoresis of ( 35 ) ~ s - cam is the same as that of unlabeled cam with ca ~ ( 2 + ) or egta ; a quatitive of protoplasts was prepared by enzymolysis

    首先，用~ （ 35 ） s標記的氨基酸混合物喂養工程菌成功地制備了~ （ 35 ） s標記的擬南芥鈣調素（ ~ （ 35 ） s - cam ） ， ~ （ 35 ） s - cam純度高、放射活度高、 ca ~ （ 2 + ）與egta存在時的電泳行為與未標記cam相同，可作為一種高靈敏性的探針用於進行受體學分析實驗；用擬南芥種子誘導愈傷，通過酶解制備了大量原生質體。
  2. One was cloning, sequence analysis and expression of the fragment containing the b and c antigenic sites locating at the 5 " terminus in spike gene of tgev in prokaryotic expression system ( fused with gst ), the other was preparation of non - radioactive probe labeled by digoxigenin for detecting the rna extracted from tgev by assay of dot - blot

    為了鑒別診斷tgev與prcv及對tgev進行流行病學調查，本研究採用原核表達系統（ gst融合表達系統）表達tgev纖突蛋白（ s蛋白）中含有b和c抗原位點的多肽，並且制備了非放射性地高辛標記的核酸探針，通過斑點雜交（ dot - blot ）檢測tgev核酸rna 。
  3. At first, environment detection data is collected, modulated and emitted in the the system of fy - 2 and detectors. then data signal is magnified, demodulated and sent in the earth - based system of data receiving and demodulating. at last, data is received, processed, stored, displayed and judged to make alarm automatically by telephone for solar proton - events and x - ray flare in the system of data processing and alerting

    首先在fy - 2衛星及探測器系統中，環境探測數據被收集、調制並發射，接著由地基數據接收及解調系統將數據信號放大、解調還原並發送，最後由數據處理及警報系統將數據接收處理、保存顯示並對太陽質子事件、 x耀斑進行自動電話報警。
  4. Since the envelope of modulated signal fluctuates, these methods generate unwanted intermodulation distortion ( imd ) products in a nonlinear radio frequency ( rf ) power amplifier ( pa ). so it is necessary to use linearization technique to reduce the adjacent channel interference ( aci )

    但包絡變化的調制信號經過非線性射頻功放后會產生交調分量，因此必須採用線性化技術來減少由此產生的鄰道干擾。
  5. The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method

    本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。
  6. It introduces the method of modulated light subtracting infrared radiation of atmosphere and background as well as the method of phase - lock - loop detecting feebleness signal

    採用光路差分調制的方法實時扣除背景紅外輻射，並採用鎖定放大器進行微弱信號的檢測。
  7. For implement of wide band modulation, multi - carries and elimination of adjacent channel interference to satisfy ber requirement in wcdma system, which is most popular in 3g technology, the linearity requirement of the base station power amplifier becomes tighter

    以wcdma為代表的第三代移動通信技術，為實現寬帶調制、多載波應用，同時減小鄰通道干擾以滿足通信系統的誤碼率要求，對基站發射機功放的線性指標要求苛刻。
  8. For low distortion, the drains ( or collectors ) of a differential amp " s front - end should be bootstrapped to the source ( or emitter ) so that the voltages on the part are not modulated by the input signal

    為了得到低失真，差分放大器前端的漏極（或集電極）應該被引導到源極（或射極） ，這樣埠電壓就不會被輸入信號調制了。
  9. 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。
  10. Survey of indoor radioactive level in wuhan

    武漢市居室內放射性水平調查及控制
  11. Comparison of telomerase activity in a few cell lines showed that application of dna sequencer in detecting telomerase enzyme activity is applicable in quantitative and qualitative determination of telomerase activity. the result of this method could be available within 4 - 5 hours with high sensitivity and less handling time. it provided a reliable means to study on regulative mechanism of telomerase activity and relationship between telomerase activation and malignancy

    Trap與dna測序相結合檢測端粒酶活性的方法，操作簡便、快速、經濟、無放射性危害，可在3 ? 4小時內得到檢測結果，大大縮短了檢測時間，為研究端粒酶活性的調節機制、端粒酶與惡性腫瘤之間的關系以及臨床上鑒別和診斷腫瘤的良惡性提供了一種檢測手段。
  12. Nonradioactive nucleic probe to tgev was prepared and was applicated to detect tgev at first stage, which established foundational work for differentiating tgev from prcv and investigation on epidemiology of tgev

    制備了tgev非放射性標記的核酸探針，並初步應用於檢測tgev 。二者為tgev鑒別診斷、血清學調查奠定了基礎。
  13. The heart rate is determined by the slope of depolarization. in physiological state heart rate is mediated by various physical, chemical and neural processes that take place in different, linked organs and organ systems

    在完整統一的機體，反射性調節、整體性的反應以及情緒變化等經過中樞整合后，通過自主神經系統傳送至竇房結，對其發放頻率進行調制。
  14. The sounds and images are converted into electrical signals by a microphone ( sounds ) or video camera ( images ), amplified, and used to modulate a carrier wave that has been generated by an oscillator circuit in a transmitter

    聲音合圖像由話筒（聲音）或攝像機（圖像）轉換為電子信號，經過放大后，用來調制發射器中一個振蕩器產生的負載電波。
  15. This paper had did the most important work was the design of transciever and the construction of working environment, and also the video module and power amplifier module. at last, we did the measurement and debugging of total system, achieved anticipate target, satisfied the requirement of communication

    本文所做的主要工作在於發射機總體設計和工作環境的構建，發射機視頻模塊，調制模塊以及功率放大器模塊的設計，最後對系統進行了總體的調試，達到預期指標，滿足了要求。
  16. According to the characteristic of gyrotron, key technologies and design methods of the transmitter such as all solid - state modulator are also discussed

    根據迴旋管放大器的組成和特點，討論了發射機中應用的全固態調制器等關鍵技術及其設計方法。
  17. In this dissertation, a boa - type waveguide optic switch with double - heterostructure gaas / gaalas has been researched. gaas - based integrated optical devices have good temperature, good anti - radiation and optical - transmission characteristics, and also have wide transparent range of wavelength. they can also be integrated on a chip with optical active devices and electronic devices, such as semiconductor laser, optical modulation, optical amplifier, pin, and so on

    基於gaas材料的集成光學器件不僅具有良好的光傳輸特性、溫度特性、抗輻射能力和其較寬的透明波長范圍，還有望進一步實現晶元與光源、光調制器、光探測器和半導體光放大器等其它光電器件以及集成電路的單片集成；採用gaas gaalas雙異質結材料製作的光開關可以得到較低的開關電壓，而且採用gaas gaalas異質結材料的光傳輸損耗很小。
  18. The modulated carrier is also amplified, then applied to an antenna that converts the electrical signals to electromagnetic waves for radiation into space

    調制后的負載電波也經過放大，然後加載到天線中，天線把電子信號轉化成電磁信號，發射到空中。
  19. Two wedge interferometers are designed that the thickness of one is higher than the other. so when the incident coherent light through the interferometers can acquire two fringe patterns which having space shift, but the incident incoherent light only result in consistent intensity signal. through a differentiating amplifier, two signals subtract which can eliminate noise of background and result in higher contrast ratio fringe signals. this method largely improves the system and the ability of detection. the spacing of line fringes is a function of incident laser wavelength, by analyzing, we can extract the wavelength of incident laser. the optical unit analyzing and results also simulated with matlab

    當背景光入射時，直接穿過干涉儀，僅發生強度的衰減，在兩個探測平面上產生幅度基本一致的灰度信號，通過差分放大器，相消為零，從而抑制了背景干擾。當激光信號入射，穿過干涉儀時受到調制，在探測平面上產生干涉條紋。通過所設計的存在平均厚度差的雙楔形干涉儀，兩路干涉條紋圖案出現相對移位：在兩個探測平面對應的位置上，一路出現亮紋，另一路出現暗紋。
  20. In transmit channel, power amplifier make the signal level more high in order to make electromagnetic wave transmit long distance

    發射鏈路中，功率放大器對已調制信號進行功率放大，以保證更遠的通信距離。
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