極輻射線 的英文怎麼說

中文拼音 [jífúshèxiàn]
極輻射線 英文
polar streamer
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 輻 : 名詞（車輪中車轂和輪圈的連接物） spoke
  • 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） ...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 輻射線 : radiation; ray
  • 輻射 : radiation; exposure; radio; beaming
  1. Characteristics of heat balance parameters of arctic ocean drifting ice and open sea are presented based on the profile - flux method and the data obtained by the first chinese national arctic research expedition during aug. 19 24, 1999

    利用中國首次北極考察隊於1999年8月19日24日在北冰洋浮冰區獲得的大氣近地層垂直廓線和輻射等資料，依據相似理論方法，對比分析了北冰洋無冰海面和冰面上熱平衡參數的變化特徵。
  2. In october 1991 it was reported that the ozone shield, which protects the earth ' s surface from harmful ultraviolet10 radiation, had dwindled11 to the lowest level recorded over antarctica since 1975 when measurements were first taken

    據報道， 1991年10月，南極上空防止地球表面遭受有害紫外線輻射的臭氧層，萎縮至1975年開始有測量記錄以來的最低點。
  3. Thus, space - charge field in excitated photoconductor can intensity influence not only the shape of photo - electric current of pcss ' s, but also the terahertz out put of photoconducting antenna. in this paper, the forming and movement of space - charge field are simulated by means of fdtd method

    觸發條件下光電導體內部電場不僅顯著的影響光電導開關產生超快電脈沖的功率、波形，而且對thz偶極天線的輻射功率也有明顯的影響。
  4. The results indicate that compared with the antenna without reflecting structure, the proposed antenna achieves broader impedance bandwidth, increases the forward radiation gain and has stronger backward radiation suppression

    結果表明，與沒有地平面反射結構的天線相比，該印製偶極子天線增加了抗帶寬，提高了前向輻射增益，抑制了後向輻射。
  5. Kapton is used extensively on spacecraft primarily as flexible substrates for lightweight, high - power solar arrays because of its inherent strength, temperature stability, excellent insulation properties, ultraviolet ( uv ) stability and infrared ( ir ) transparency. however, polymeric material undergoes severe degration after being exposured on atomic oxygen ( ao ) in low earth oribit ( leo )

    聚合物kapton由於具有較高的比強度，優越的熱穩定性、絕緣性、紫外線輻射穩定性及紅外線穿透功能，是航天飛行器常用的材料，但由於空間環境中的原子氧對這種材料造成極大的損害，大大限制了這種材料在空間環境下服役時間。
  6. The radiation field evolves from a steady saturation state to a limit cycle oscillation state, and eventually to chaotic oscillation state as the current increases, the region in which the field exhibits limit cycle or chaotic oscillation is called the " soft " and " hard " nonlinear regime, respectively : ( 1 ) in the " soft " nonlinear regime, the radiation field is characterized by period doubled bifurcation and the discrete power spectrum

    隨著電流的增大，輻射場經歷由穩定飽和到極限環型的周期振蕩，並最終過渡到非周期性混沌振蕩的演化過程，按其狀態可分為「軟」和「硬」兩種非線性區域： （ 1 ）在「軟」非線性區域，場的極限環振蕩態和穩定飽和態是交替出現的，其特徵是典型的倍周期分岔，輸出功率譜是分立的。
  7. Interrupters used in power switchgear, x - radiation limits for ac high - voltage power vacuum

    電力開關用交流高壓電力真空斷路器的x射線輻射極限
  8. In the cores of many so - called " active galaxies ", we can observe extremely powerful radio sources with double - lobed structure and jets of high - energy particles

    很多所謂活躍星系的核心都會發出能量極大的無線電輻射，或擁有高能粒子噴流雙瓣無線電輻射源等結構。
  9. The performance of the pbg antenna using the new pbg cover together with a pbg substrate is studied by the fdtd method together with the pml boundary treatment. the numerical results show that a more focused beam radiated in the broadside direction is achieved. the gain of the pbg patch antenna in the forward direction is improved by about 6 db. the radiation directivity is improved significantly and reaches 11. 5 db, which is 0. 4 db less than the maximum value that is allowed physically for this size of the antenna ( this difference is about 4. 1 db less than the difference achieved by thevenot et al.,

    用fdtd方法並結合pml吸收邊界條件，我們對加了這種新的覆層結構並且基底鉆孔的復合結構電磁（光子）晶體貼片天線的性能進行了研究，結果證明加了這種新的電磁晶體覆層結構以後，天線的波束收攏很多，並且向前輻射的增益大大提高，與普通天線相比，天線的e面和h面方向圖上向前輻射的增益均提高了約6db ，另外，該復合結構天線的方向性系數達到了11 . 5浙江大學博士學位論文db ，與該物理尺寸天線的方向性系數的理論極限值（ 11 . 9db ）相差0 . 4db ，該差值比thevenot等人設計的電磁晶體覆層天線的相應差值減少了約4 . 1db ，比qiu等人設計的電磁晶體天線的相應差值減少了約1
  10. Igh in the atmosphere hovers the thin but important ozone layer, which absorbs most of the earth s solar ultraviolet radiation and converts it into heat energy. only a small portion of the ultraviolet radiation is left to reach the earth

    氧存在於大氣層中，雖然是薄薄的一層，卻非常重要，它能吸收陽光中的紫外線，將這些有害的輻射，轉換成熱能，只讓極少量到達地表。
  11. In order to reveal the mechanisms of extreme radioresistance and dna repair in deinococcus radiodurans, we examined proteome changes in a wild type strain following y - irradiation using 2 - dimensional polyacrylamide gel electrophoresis and silver staining

    為了研究耐輻射球菌極強的輻射抗性與dna修復機理，我們應用雙向電泳結合銀染的方法考察了野生型菌株kd8301在射線照射前後細胞體內總蛋白組的變化情況。
  12. In the primary experimental study, the microwave power, the microwave frequency, and the mode are measured, hie relations among the microwave radiation, the intensity of the magnetic field, the position of the magnetic coil, the amplitude of the beam current, and the a - k gap are investigated

    在初步的微波實驗中，測試了微波的功率、頻率和模式，測試了磁場強度和線圈位置對微波輻射輸出的影響，測試了束流大小和陰陽極間距對微波輻射輸出的影響。實驗結果發現微波的功率和模式基本與模擬結果吻合，器件工作穩定，重復性良好。
  13. Method for determination of the maximum symmetrical radiation field from a rotating anode x - ray tube for medical diagnosis

    醫療診斷用旋轉陽極x射線管的最大對稱輻射區域的測定方法
  14. After the si photodiode was calibrated by synchrotron radiation, we can get the quantum efficiency of 5 to 50 nm bandwidth which made a transfer standard to spectrum measurement system

    Si光二極體用同步輻射標定后，得到了5 50nm波段的量子效率曲線，函蓋實際實驗使用的8 30nm波段，使光譜測量系統的標定有了一個傳遞標準。
  15. In the following section, the thesis demonstrated the robustness of the proposed method in the computation of radiated electromagnetic fields of switched mode power supplies by means of a numerical study on the electromagnetic fields of an electric dipole antenna

    應用本文開發基於pml吸收邊界條件三維時域有限差分計算軟體，計算了電偶極子天線的三維輻射電磁場，並將計算結果與解析解進行了對比分析，驗證了時域有限差分法計算高頻開關電源輻射電磁干擾的有效性。
  16. Abstract : in tokamak plasma radiation diagnostics, if the width of a detected plasma chord is comparable with the plasma minor radius, the plasma boundary may influence the line - integrated emissivity considerably and make it a weighted integral of the width - averaged emissivity

    文摘:在托卡馬克輻射診斷中，當探測束線的極向寬度與等離子體小半徑可以比較時，等離子體邊界會顯著影響線積分輻射率，使其成為寬度平均輻射率的帶權重的線積分。
  17. A kind of novel composite photocatalysts containing tio2 and tourmaline particles, such as tourmaline / tio2 composite photocatalysts and tourmaline / [ tio2, sio2 ] composite photocalysts, were fabricated mainly by the sol - gel technique, whose microstructure, photocatalystic activities and spontaneous polarization were investigated by the scanning electron microscope ( sem ), uv - visible spectro - photometer, etc. the novel porous composite films of tourmaline / tio2 were prepared from alkoxide solutions on the surface of copper by sol - gel method

    本工作利用電氣石礦物材料的天然電極性、輻射紅外線性能和tio _ 2的光催化性能，研製以電氣石為載體， tio _ 2薄膜和[ tio _ 2 ， sio _ 2 ]復合薄膜為催化劑的新型復合催化材料。研究材料的制備技術、結構、性能及電氣石表面tio _ 2晶體生長機理、電氣石增強tio _ 2光催化效率機理。
  18. They found two events showing the shortening of pulsating cycle and decaying of radiations intensity. the signatures matched theories of what scientists would predict to see. when matter is falling so close to the event horizon, it will be circling the black hole with increasing speed and its light will rapidly dim as it is stretched by gravity to ever - longer wavelengths

    研究人員分析了極大量來自緻密天體天鵝座xr - 1的紫外線輻射，發現其中兩組數據顯示，輻射脈沖的周期隨時間縮短，而其強度則隨時間衰減至消失，這現象與一些物質在接近黑洞視界時繞著黑洞急促旋轉，放出的輻射因為重力紅移而衰減的情況相符。
  19. Thz radiation generated from a si3n4 covered gaas photoconductive dipole antenna is investigated in the paper

    分析了瞬態電場對thz偶極天線輻射的影響。
  20. The research about the critical technique includes : developing the radiation - hard ccd sensitive to the x and euv ray ; implementing the design of ccd driving clock and signal readout electronic using cpld ; implementing shutter design which can realizing 1ms - 10s exposing time

    關鍵技術突破包括：完成x射線和極紫外波段都敏感的抗輻照型ccd技術設計，並利用cpld實現了非規則像素陣列ccd的驅動時序和讀取電子學電路設計和調試：完成1ms 10s寬動態范圍快門裝置設計和調試。
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