等輻外差法 的英文怎麼說

中文拼音 [děngfúwàichāfǎ]
等輻外差法 英文
equal heterodyne
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 輻 : 名詞（車輪中車轂和輪圈的連接物） spoke
  • 外 : Ⅰ名詞1 （外面） outside; external side 2 （外國） foreign country 3 （以外） besides; beyond; in ...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  1. As the microbolometer which is voltage biased express some characters different from other infrared detectors under the effect of electric heat and infrared radiation together, the computing method of parameters, such as responsivity, noise, noise equivalent temperature different ( netd ), noise equivalent power ( nep ), optical gain, detectivity and so on is given in this paper. some of these parameters are particular compared with other detectors, and some have difference between microbolometer and other detectors

    由於微測輻射熱計在施加偏置電壓的情況下，電熱效應與紅外輻射的共同作用使它表現出與其他紅外探測器完全不同的一些特徵，文中給出了響應率、噪聲、噪聲等效功率、噪聲等效溫差、光學增益、探測率等參數的計算方法，這些參數中的部分是微測輻射熱計獨有的，或者與其他的紅外探測器的同一參數有所區別。
  2. In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples

    第二章在聲波動理論基礎上，詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式；根據fredholm積分理論，對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明；改進了chief法以提高其克服解的非唯一性的有效性和可靠性；對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究；開發了三次樣條改進chief法計算軟體，並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。
  3. 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
  4. The base of ehtv calculation is analyzing the dynamic heat transfer to equivalent temperature difference solar factor of windows, for the shading of windows it used external shading multiplier

    Ehtv簡化計算的基礎是將這些動態熱作用分解為等效溫差、標準窗太陽輻射得熱等參數，而且系統地提出外遮陽系數，簡化了建築遮陽對外窗太陽輻射得熱的計算方法。
  5. Since our reform and opening - up policy was implemented, companied with the development of economy and society, urbanization of our country has obtained substantial progress. enhancing the urbanization has been the call of economic development and social progress, the inevitable choice to adjust the economic structure and optimize the regional structure of production factor, the strategically act to start - up internal needs, to bring along economic increase and change the deflation situation. but we must aware of the situation that, compared with the requirement of modernization, advanced level in abroad or the practical needs of people, the level of our country ' s urbanization is very slow. many conflicts are acute. the main problems such as : the progress of urbanization is obviously lag than industrialization, the core competencies of the city is not strong enough, the cohesion of the city is not big enough to radiate the near area, the intention to manage the city is not strong etc. all these problems deserved to be studied deeply

    加強城市化進程，已成為中國經濟發展與社會進步的強烈呼喚，成為調整經濟結構和優化生產要素地域結構的必然選擇，成為啟動內需，拉動經濟增長，改變通貨緊縮局面的戰略舉措。但我們必須清醒地看到，我國城市發展與現代化建設要求相比，與國外先進水平相比，與人民群眾的實際需求相比，還存在不少差距，有些矛盾還比較突出。主要表現在：城市化水平還比較低，明顯滯後於工業化進程；城市的核心競爭力不夠強，內聚力和輻射力不夠大；城市經營觀念不強，辦法不多等等。
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