均勻變換 的英文怎麼說

中文拼音 [jūnyúnbiànhuàn]
均勻變換 英文
affine transformation
  • : Ⅰ形容詞(均勻) equal; even Ⅱ副詞(都; 全) without exception; all
  • : Ⅰ形容詞(均勻) even Ⅱ動詞1. (使均勻) even up; divide evenly 2. (分出一部分) spare
  • : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
  1. Unwinding roller is made of stainless composite piping material, which has the following advantages : ( smooth on surface, non - pilling, non - knotting, non - slip - stick, unity in unwinding expansion, good core - spunned result ), roller seat, driven chain, traction changing gear, adjustable bearing godet wheel, driven cover

    退繞羅拉:採用不銹鋼復合管材料製作,該種材料具有以下幾種優點(表面光滑、卜掛絲、不纏絲、不打滑、退繞張力、包芯效果好) 、羅拉托座、傳動鏈輪、牽伸齒輪、可調試軸承導絲輪、傳動防護罩。
  2. 4. an roi coding method realized by foveation technology and two of its extended applications are presented. by unevenly upscaling the wavelet coefficients, the method can not only reconstruct the roi data priorly in a low bit - rate codestream, but make the progressive reconstruction of the image data more convenient for the human vision system

    該方法根據人類視覺生理特點,將小波系數進行非的上移位處理,不僅能夠保證感興趣區域圖像數據在低比特數據流中的優先恢復,還實現了使圖像的漸進恢復過程更加適合人類生理視覺感觀特點的效果。
  3. Multi freezing air orientation, freezing equably

    多重凍結氣流方向,凍結
  4. In this thesis, summarized the basic theories of fourier transformation and the fast fourier transformation that are generally adopted to detect and analyze the electric power harmonic in the electric power supply system. at the same time, summarized the even sample principle, the phenomenon of frequency mix, the window functions and the frequency leaking as so on, those are closely - related to sample from figure signal

    簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉和快速傅利葉的基本理論以及與數字信號采樣密切相關的抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本理論。
  5. Summarized no - line loads and the present situations of the electric power harmonic pollution in the guangyuan district ' s electric power supply system ; explained the theories of fourier transformation and the fast fourier transformation those are widely adopted by majority scholars to examine and analyze the electric power harmonic in the electric power supply system. summarized the principle of even sample, the frequency mix phenomenon, the window functions and the frequency leaking as so on, those are closely - related to the figure signal

    簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉和快速傅利葉的基本理論,簡要闡明了與數字信號采樣密切相關的抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本理論,同時闡述了電力系統的諧波檢測與分析的相關理論基礎知識。
  6. The air absorbed by the fans is separated in and equably flows in the interior and outer canister, from to the heater and interior canister, the air is efficiently heat - treated, then the hot air influxes to and is balanced in because of the mixing by the heater, the hot airs temperature in has only little change, then it is separated completely from to ensure the balance - dryness of the colophony

    由鼓風機吸入的空氣在處被分散,于內筒和外筒間地流動,從處進入內筒和加熱管進行有效地熱交。然後熱風在處匯集,在處無序混亂的熱內被化。由於加熱箱熱風混合效果的作風,處的熱風溫度化幅度很小,熱風經熱風排出口被完全地分散開,從而保證了樹脂乾燥。
  7. Of the currently available coolers for electronic products with a high heat flux, microchannel heat sinks have been proved to be able to provide the best heat transfer performance and are one of the most promising coolers. the manifold microchannel ( mmc ) heat sink has many advantages such as low thermal resistance, compact structure, little amount of coolant, low flow rate, uniform temperature distribution along the flow direction and many others, so it is able to provide the best heat transfer performance : lowering the maxmal temperature and the temperature difference

    在目前高熱通量電子產品冷卻器中,微通道熱沉已被證實是傳熱性能最佳且最具應用潛力的冷卻方式之一,而歧管式微通道熱沉因具有低熱阻、結構緊湊、所需冷卻液量小、沿流動方向溫度分佈等優點則成為減小電子元器件熱表面最高溫度、降低溫度化的一種有效方法。
  8. Being local in space and frequency, and some even compactly supported, wavelets are used to simplify the wave equations in slowly varying nonhomogeneous medium, and transfer the problem of solving two - dimension wave equations into a series of one - dimension problems, after words, the method in 1 can be applied to solve it. as a result, the complexity of the problem and the difficulty in solving it are largely reduced

    利用小波在空間域和頻率域上具有局部性的特點,通過小波展開,把二維非問題轉化為一系列一維非問題,然後利用在(一)中得到的通用計算公式求解,大大降低了問題的復雜性和難度。
  9. The tests of e - o applications by our flux ktp has been realized, the results showed : optical waveguides fabricated by using an ion - exchange process, which have an exchange - ion concentration depth profile and refractive - index profile, is close to a complementary error - function distribution, optical homogeneity and device thermal stability is much better. amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2. 5 % at 1064 nm. high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width, this modulator had run for three years, and the crystal did n ' t blackened, it showed our low conductivity flux ktp can endure high modulation voltage for a very long time

    Ktp晶體的電光應用試驗表明:用離子交法製作的電光波導,其離子交濃度、折射率化符合餘弦誤差函數,光學性以及器件的溫度穩定性較好;製作的強度調制電光開關,消光比為150 : 1 ,對1064nm激光的插入損耗為2 . 5 ;製作的電光調制器用於激光脈沖整形試驗,從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質量光脈沖,該電光開關經過長達三年多的使用,沒有出現晶體黑現象,說明本實驗的低電導率ktp晶體能夠耐受長時間的調制電壓。
  10. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發,建立了笛卡兒坐標下無源空間中無耗媒質的fdtd基本方程和圓柱坐標下無源空間中無耗媒質的fdtd基本方程,詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置;推導了mur一階和二階邊界條件在圓柱坐標下的差分格式;給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場技術;最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場,並分析了天線的一些參數的化對天線輸入阻抗的影響,得出了一些有用的結論。
  11. Secondly, we bring statistic coding, prediction coding, transform coding and analysis & synthesis coding into radar area. according to the properties of radar data, we take 4 methods, which are huffman coding ; prediction error model and lzw coding ; fft, uniform quantization in each frequency bank and huffman coding ; wavelet transform, uniform quantization in each frequency bank and lzw coding, to compress the genuine ground clutter radar data and give the corresponding results

    根據雷達回波的特性,分別採用了huffman編碼法,預測誤差模型和lzw編碼法, fft 、分頻帶量化和huffman編碼的壓縮演算法,小波、子帶量化和lzw編碼的壓縮演算法等四種演算法,並給出了用這些演算法對真實的地雜波雷達回波數據進行壓縮的實驗結果。
  12. In geometry fitting, we introduce the scattered data interpolation technology, and by using the corresponding points on the shared boundary between the given facial mesh and the organ to be pasted, the facial mesh can be automatically fitted to the organ to be used. and in texture fitting, we extend the improved field - based morphing algorithm to the corresponding texture map, and with the preprocessing of the histogram - matching method we can obtain smooth replacing result in the texture map

    在紋理上,將改進的場形演算法拓展到人臉模型對應的紋理圖上,不但完成了紋理圖中對應器官區域的替,同時通過引入以點到邊界距離的函數為權重的線性插值,實現了在替器官區域從目標圖像到源圖像的過渡;又通過引入直方圖規定化的技術,解決了由於膚色相差較大而產生的邊界不能平滑過渡的問題。
  13. Based on the difference of measuring errors between spectrum and a single pulse, the article introduces a procedure which can improve the specification of non - linearity of commercial adc for spectrum measurement without channel - width - everaging circuit

    摘要根據放射性能譜測量的誤差並不等於對單個脈沖測量的誤差的特點,提出一種先測出模數器的道寬,然後利用軟體方法進行道寬的技術。
  14. The system can simulate the transfer process of photo - thermal and thermal - electric at a given parameter setting of structure, environment and circuit. on the basis of circuit structure, the calibration, parameter adjusting and signal readout can be simulated, the vary process of readout circuit, readout voltage, optical gain, optical gain rate, and uniformity can be given. in addition, all kinds of character parameters of device can be forecasted

    本論文根據umbirfpa的原理,建立它的軟體模擬系統,它可以根據給定的結構、環境、電路設置等參數首先模擬光熱、熱電轉過程,並可根據電路結構,模擬校準、參數調節並讀出信號,給出讀出電流和電壓、光學增益、光學增益比、非性等各特徵量的定量化過程,預測製成后器件的各種性能參數。
  15. 4. problem of circular array ’ s high side - lobe ( relative to main - lobe ) and the lower depth of zeros is resolved using mode space transform, which changing uniform

    4 .利用模式空間圓形陣列轉化成虛擬的線陣,解決了圓形陣列副瓣電平較高(相對于主瓣) 、零點深度相對較淺的問題。
  16. The main works and innovations of this thesis are as follows : ( 1 ) based on the oversampling of ofdm frequency response, this paper proposes a channel estimator which combines the comb - pilot - tones partitioning and the fourier transform with the same pilot symbol samples

    具體而言,主要有以下六個方面的工作和創新點: ( 1 )利用在ofdm系統中通道的頻域響應是過采樣的特性,提出了在頻域內用梳狀分佈的導頻符號和與導頻符號數相同點的傅里葉相結合的通道估計方法。
  17. This thesis discusses maslov ' s method, wavelet transform and their applications to asymptotic evaluation of wave equations in high frequency fields. the method of solving wave equations in caustic domain by symplectic geometrical theory, and the method of simplifying two - dimension wave equations in slowly varying nonhomogeneous medium by wavelet - transform theory are proposed. the caustics phenomena of electromagnetic wave propagation in concave reflector, the singularities of caustics, and the method of computing wave fields in and far away from the caustics in concave reflector are also discussed

    本論文探討了maslov方法在波動方程高頻近似中的應用及焦散區的具體求解方法;討論了用小波化簡二維非介質條件下的波動方程;本文還討論了凹面反射的焦散現象、凹面反射焦散區的奇性種類,討論了二、三維凹面反射波動場非焦散區、焦散區的計算方法。
  18. The electric potential of a line charge inside a thin cylindrical conductor is calculated by conformal mapping and mirror image method

    摘要利用保角和電象法,分別得出帶電線與接地薄導體圓筒內的電勢。
  19. The usual way to solve this problem is to transform the original signal into " 0 ", " 1 " equally - distributing circuitry code type which is fit for the optical channel, and then transmit

    解決該問題常用的方法是通過通道編碼將原始信號為「 0 」和「 1 」分佈的適合光線通道傳輸的線路碼型,再送入光路進行傳輸。
  20. Abstract : based on the c. carathe " odory theorem, several conclusions related to near - axis image formation in an axial symmetric optical system have been verified by means of the projection transformation

    文摘:以卡拉西奧多里定理為基礎,用投影驗證了在的各向同性介質中具有軸對稱性的光學系統近軸成象的結論。
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