輻射方向 的英文怎麼說

中文拼音 [fúshèfāngxiàng]
輻射方向 英文
radial direction
  • 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） ...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 輻射 : radiation; exposure; radio; beaming
  • 方向 : direction; orientation
  1. Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results

    這種方法的積分方程的積分核里含有復雜的微積分運算，為了簡化計算，本文在推廣的海倫積分方程的基礎上，對方程進行了簡化，推導了nakano方程，並以平面阿基米德螺旋天線，平面等角螺旋天線，軸向模圓柱螺旋天線，具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例，用矩量法求解了天線上的電流分佈，研究了螺旋天線輻射的寬頻帶特性，所得的結果均與參考文獻吻合很好。
  2. The experimental results show : the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened ; moreover, under the condition of the same power of microwave, the pulse duration of the out - put microwave was prolonged by about 30 % ; the peak power of the microwave was enhanced by 3db

    通過在裝置上做的兩種陰極的對比實驗，結果顯示:碳纖維陰極的使用，改善了電子束質量，使輻射微波的脈寬增加了30 %以上，輻射主瓣方向上的功率密度提高了3db以上，頻譜分佈較純凈，實現了微波的高效輸出。
  3. The simulation results are compared to the normal dipole antenna in order to observe the influence of fractal and investigate the effect of antenna miniaturization. the relationship between miniaturization and fractal dimension is researched. the koch and 3 / 2curve fractal unit are applied to yagi - uda antenna, the performance like impedance characteristic and radiation pattern is simulated by cst microwave studio ?

    對其阻抗特性及輻射方向圖進行了模擬計算，並分別與未應用分形的普通半波振子天線相比較，觀察分形對天線性能的影響，以檢驗分形天線小型化的效果，研究了尺寸縮減性與其分形結構的分形維數之間的關系。
  4. In chapter 2, a simplified analytical model is presented for the analysis of the bvi mechanism, adopting the beddoes " prescribed wake model. by this model, the azimuthal location and miss - distance of the bvi and the radiation directivity of the bvi noise are calculated and discussed, and some conclusions are obtained

    在第二章，使用beddoes預定尾跡模型，建立了一個用於旋翼槳-渦干擾特性機理分析的簡化數學模型，分別對旋翼槳-渦干擾位置、槳-渦干擾距離和聲輻射方向性等進行了計算和分析，得出了有意義的結果。
  5. In summaries, we use two parts, isotropic and anisotropic, to describe the anisotropic diffuse - radiation ; connected the horizontal diffuse - radiation and the land modulus to calculate the diffuse irradiation on actual terra ; and modem geo - tech, dem and pci - geomatica software and so on, is convenient and helpful to deal with mass geo - data and geo - information

    總結本文的技術與方法，本文以各向同性與各向異性權重分離方法描述了散射輻射各向異性特徵；以平地散射輻射與地形因子結合方式詳細探討了地形因子的作用;以dem數據與現代地理信息軟體相配合，嘗試了高效的現代地理空間信息計算技術。
  6. The radiation performance of the antenna illuminated by a round wave - guide is described in detail by clear physical pictures

    推導了天線的輻射公式，並對天線的輻射方向圖和頻帶寬度進行了討論。
  7. The text introduces the theory of the radar antenna " s scan wave by adopting the method of using wave width to describe antenna radiate direction fig

    本文介紹了雷達天線的掃描波束理論，採用了用波束寬度描述天線輻射方向圖的方法。
  8. The radiation characteristics of an array with elements in a medium and the radiation space in another medium are studied in detail, and the maximum and minimum radiation conditions are firstly deduced. finally, the radiation patterns of two kinds of special arrays are presented

    深入研究了陣列單元與輻射空間為不同介質時的輻射特性，首次導出了最大輻射條件和最小輻射條件，給出了二元、三元陣列的輻射方向圖。
  9. Around 2 : 15am, fans at suburb locations in hong kong saw seven to eight meteors pouring from the sky, sometimes up to five meteors emerged from the radiant all at once. even people in urban districts could also see two to three meteors per minute

    在凌晨2時15分左右，處于香港不同郊外地方的朋友，每分鐘都可看見七八顆流星，有時甚至是同一時間看見五顆流星從輻射點向四周發射，即使是在燈火通明的市區，每分鐘看見兩三顆流星也非難事。
  10. The third chapter is experiment analyses of multi - aperture transient electromagnetic method, it analyzes multi - aperture transient method in theory and discusses radiation direction characteristic of first field by means phased array theory and integrating result of experiment contrast. according to kinematics character it also brings forward similar interference concept and analyzes reason of similar interference phenomenon, it gained footing between similar interference item and depth on the base of it and experiment formula

    藉助于相控陣原理的思想，結合模擬實驗觀測值對比結果，對多孔徑tem方法進行模型分析，詳細討論了多孔徑一次場的輻射方向特性，利用光波的運動學特徵提出類相干的概念，分析了多孔徑tem輻射源存在類相干現象，推導出類相干實驗公式，並得出類相干項與多孔徑框邊長以及埋深的關系表達式和。
  11. Making use of the propagation property of the electromagnetic wave, the authors made a further discussion on the directional characteristics of the radiation electromagnetic waves from elements antenna, symmetric whip and antenna array, and analysed the effects of various factors on the directional characteristics

    摘要利用電磁波的傳播特點，對元天線、對稱振子及其天線陣輻射電磁波的方向性做進一步的探討，並分析各因素對其輻射方向性的影響。
  12. Abstract : making use of the propagation property of the electomagnetic wave, the authors made a further discussion on the directional characteristics of the radiation elecromagnetic waves from elements antenna, symmetric whip and antenna array, and analysed the effects of various factors on the directional characteristics

    文摘:利用電磁波的傳播特點，對元天線、對稱振子及其天線陣輻射電磁波的方向性做進一步的探討，並分析各因素對其輻射方向性的影響。
  13. Crops sown in line ; the directional characteristics of thermal radiance ; scanning direction

    行播作物熱輻射方向特性掃描方向
  14. Taking erectophile type continuous vegetation as a example, authors had done many monte carlo simulations, and established empirical analytic expressions of radiances with component temperature, soil emissivity and leaf area index. empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters, such as component temperature, soil emissivity and lai, from thermal infrared 2 channels and 2 angles data. many experiments of genetic algorithm inversion from simulated data were conducted, results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken. comparison between inversion results and ground - truth data has been done. this paper offers a new example to retrieve component temperature from multi - channel, multi - angle thermal infrared data based on the model of directionality of thermal radiance

    在熱輻射方向性規律的基礎上，以喜直型連續植被為例，進行了大量的monte carlo模擬，建立了輻射亮度和組分溫度植被葉面積指數及土壤比輻射率之間的經驗函數關系。採用遺傳演算法，從熱紅外2個波段2個角度數據中，同時反演混合像元組分溫度土壤比輻射率和葉面積指數等5個參數。通過對模擬的觀測數據進行大量的遺傳演算法反演試驗，結果表明，遺傳演算法反演組分溫度非常穩健，在寬松的先驗知識條件下，遺傳演算法可以解決不確定性反演問題。
  15. This radiator has, for any wavelength and any direction, the maximum spectral concentration of radiance at a given temperature

    在給定溫度下，對于所有波長和入射方向黑體輻射功率最大。
  16. And radiometer frequency is entended to millimeter wave and sub - millimeter wave, with improvement of electronic technology and microwave and millimeter wave technology, and practical application demand

    隨著電子技術和微波毫米波技術的發展，也隨著實際應用的需求發展，微波輻射計向著毫米波和亞毫米波輻射計方向發展。
  17. Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field. a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle. aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing

    該方法利用表面熱輻射方向性和顯熱通量都是源於土壤和植被溫度的貢獻這一共同點，發現在一定傾斜角度的觀測下，視場中植被與土壤的比例可以較好地反映植被和土壤與大氣進行湍流熱交換的貢獻率，所以稱該方法為最佳組分面積比法，用最佳組分面積比可以將任意角度下觀測到的輻射溫度訂正為空氣動力學溫度，經過地面和遙感數據驗證表明，用該方法計算的通量精度高於普通的單層模型。
  18. Using a dual tracer method as the optimal procedure, the radio - guided method allows us to confirm the complete harvest of sns by gamma probing, while the dye procedure enables us to perform real time observation of the lymphatic vessels

    二元示蹤法是最目前理想的方案：輻射導向技術使我們能確信信號淋巴結已被探測器完全採集，而染色技術則使我們能夠對淋巴管進行實時觀測。
  19. Presented in this paper is the investigation of some problems existing in the far - field method widely used in hpm measurement. first, the errors are analyzed from the practical calculation of the directivity for the radiation of the te11 mode in the circular waveguide. secondly, the results obtained from simulation and experiments are compared with each other on the effective area of the receiving antenna of certain types, and the power capacity are calculated for these antenna

    首先，對圓波導te11主模輻射方向性系數實際計算中存在的誤差進行了分析;其次，對一些型號的接收喇叭有效面積進行了模擬和實測對比，並通過計算給出了這些型號的接收喇叭的功率容量;最後，實驗測定了微波脈寬對一些微波器件? ?同軸型檢波器、同軸型衰減器及微波電纜性能的影響。
  20. Attempt to calculate the diffuse irradiation on the actual terra by used of the modern geo - information technology and the high resolution digital elevation model, we focused on 3 points in discussion : 1. to construct an appropriate model to describe the anisotropic character of the diffuse - radiation. according to the circle - sun suppose, we decomposed it into 2 parts, one is the isotopic part and the other is anisotropic

    本文的討論主要著眼於三個方面： 1 、散射輻射各向異性特點利用環日假設理論，把太陽散射輻射分解為各向同性散射和環日散射兩部分，並以水平地面上的直接輻射和散射輻射各自在總輻射中所佔比例來表示其權重，描述實際散射輻射各向異性的特徵。
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