fourier surface 中文意思是什麼

fourier surface 解釋
傅里葉曲面
  • fourier : n 1 傅立葉〈姓氏〉。2 Francois Marie Charles Fourier 弗朗瓦斯馬利沙利傅立葉〈1772 1837，法國空想...
  • surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
  1. Sequentially, the author discussed the technologies of medical image 3d visualization according to the clinical applications. with the development of computer, 3d visualization and computer graphics, the 3d visualization of medical images has progressed from fourier transform and convolve inverse projection to mpr ( multi - planar reformation, mpr ) and mtp ( maximum intensity projection, mtp ), nowadays, the real 3d reconstruction method, surface and volume rendering has risen. the image registering, image segmentation, pixel data set construction and 3d special interpolation are the key technologies in medical images 3d reconstruction

    隨著計算機技術、三維可視化理論和計算機圖形學的發展，醫學圖像的三維可視化技術也從傅立葉變換、卷積反投影等基本圖像處理演算法，發展到真正的三維重建演算法：面繪制和體繪制；醫學圖像的三維可視化技術的應用也從三維醫學成像發展到虛擬內窺鏡，以及今天的虛擬可視化人體研究；而圖像的配準、圖像分割、體數據集的構建、三維空間插值則是醫學圖像三維可視化實現過程中的關鍵技術環節。
  2. This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center, containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity. at the same time, many wide - applied metering technology, for example, the diffracted field ( fringe ) measurement, co - focal lens system, optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well, were combined into it successfully. this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing, instrument science, measuring and testing technology and automatic technology

    該多功能激光光電實驗系統以泰曼-格林干涉（ twyman - green ）光路作核心，包括先進的數字波面干涉技術和一種基於空間干涉原理的、納米解析度零差干涉儀位移測量方法，同時將多種新穎、工程實用價值高的測量技術和光路如衍射測量、共焦顯微技術、光纖傳感技術以及反映傅立葉光學基本光學原理的4f空間濾波系統也組合進去。
  3. Components, structure and surface morphology of the resulted films were identified by fourier transform infrared ( ftir ) spectroscopy, x - ray diffraction ( xrd ) and scanning electronic microscopy ( sem ). the analyses showed the content of cubic boron nitride in the resultant films on substrates was rather high and crystal particles of c - bn with uniform size, smooth crystal plane and regular shapes ( quadrangle and hexagon ) densely arrayed on the substrate

    傅里葉轉換紅外吸收（ ftir ）光譜儀、 x射線衍射（ xrd ）儀和掃描電鏡（ stm ）的測量結果顯示，基底上的bn膜中立方相含量很高，且晶粒大小均勻、排列緻密，晶形呈規則的四角和六角形。
  4. We believe the fine mechanical properties of tubular film are related to its fine chain orientation structure by using pole figure investigation and polarized fourier transform infrared ( ftir ) spectra analysis, the modes of orientation for flat and tubular films are obtained. it was found that the cellulose chains of the flat and tubular films have an uniplanar orientation mode with respect to the film surface

    通過x衍射織構（極圖）分析和偏振紅外光譜分析建立了平膜和管膜的取向模型：平膜和管膜都有單平面取向；平膜中的分子鏈在膜表面內呈無規取向:管膜中的分子鏈則相對于拉伸方向有明顯擇優取向。
  5. The interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity

    研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為，以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張力、接觸角及比表面面積等測定手段，分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗，討論了配料比、溫度、壓力、攪拌等工藝條件對吸附量的影響.結果表明，香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附；香精無法完全潤濕載體粒子表面，但可以對其形成部分浸潤；提高溫度、壓力、攪拌速度可以增加吸附量，而延長吸附時間對增加吸附量貢獻不大
  6. Abstract : the interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity

    文摘:研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為，以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張力、接觸角及比表面面積等測定手段，分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗，討論了配料比、溫度、壓力、攪拌等工藝條件對吸附量的影響.結果表明，香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附；香精無法完全潤濕載體粒子表面，但可以對其形成部分浸潤；提高溫度、壓力、攪拌速度可以增加吸附量，而延長吸附時間對增加吸附量貢獻不大
  7. Secondly, the grafted membranes were prepared by grafting 2 - acrylamido - 2 - methyl propane sulfonic acid ( amps ) on pretreated membranes using cetric ammonium nitrate ( can ) as an initiator in the aqueous medium. the surface compositions of the grafted membranes were determined by fourier transform adsorption spectrum ( ftir ) and x - ray photoelectron spectroscopy ( xps ). and the morphology of the grafted membranes was studied by scanning electron microscopy ( sem ) and atomic force microscopy ( afm )

    然後，選用硝酸鈰銨作為引發劑， 2 -丙烯酰胺- 2 -甲基丙磺酸（ amps ）為接枝單體，在水溶液體系中進行接枝共聚反應制備pvdf ? g ? amps中空纖維膜，並利用傅立葉紅外光譜（ ftir ） 、 x光電子能譜（ xps ） 、掃描電子顯微鏡（ sem ）及原子力顯微鏡（ afm ）等檢測手段證實了接枝共聚物的存在。
  8. A quantitative analysis on the surface of the plate composite membranes with various polymerization tune was made on the basis of the feature absorption to ir by means of attenuated total reflection - fourier transform infrared spectroscopy. the results showed that polyamide functional layer grew thick with the polymerization time going on. this indicates that the polyamide functional layer formed on the interface cannot separate the w / o phases to stop the reaction

    利用衰減全反射-傅立葉變換紅外（ ftir - atr ）對不同聚合時間的平板復合膜表面進行了特徵吸收定量分析，研究發現，聚酰胺功能層隨聚合時間不斷增厚，這說明已形成的聚酰胺功能層不能屏障兩相而終止反應，相反由於哌嗪單體的分子量遠低於納濾截留分子量的范圍，很易擴散穿過功能層達到兩相界面，繼續與有機相單體酰氯反應。
  9. The results of attenuated total reflectance - fourier transform infrared ( atr - ftir ), x - ray photoelectron spectroscopy ( xps ) and contact angle measurement showed that the amphiphilic copolymer could self - segregate on the hydrophobic pdl - la surface

    利用衰減全反射傅立葉轉換紅外光譜（ atr - ftir ） 、 x -射線光電子能譜（ xps ）分析以及接觸角測定對改性聚乳酸材料表面進行了表徵。
  10. The solution formula of dwell time is deduced by using the pulse iteration method and the smoothing fourier transition method, and the formula can be simplified referring to workpiece shape. according to the anastomotic status of the tool and workpiece surface, we present the new model of the inherent relation among local pressure density, removal rate, convergence ratio and residual errors, and the corresponding formulas are given. the forming cause of the edge effect in the polishing process is analyzed, and the means which reduces the edge effect is put forward

    2 、針對計算機控制光學表面成形（ ccos ）的加工方式、誤差收斂特點，研製了去除函數呈高斯分佈的雙轉子結構研拋模；採用脈沖迭代法、平滑因子傅立葉變換法推導出駐留時間的演算法，求解過程中根據工件面形的特點作了各種形式的簡化；提出了工件表面和研拋模的吻合誤差與局部壓強、材料去除率、收斂比之間內在關系的數學模型，並推導出相應的計算公式；分析了邊緣效應產生的原因，在加工過程中採用相對壓力因子對去除函數進行修正，可以消除邊緣效應的影響。
  11. In order to utilize the atmospheric duct phenomena, and to make the electronic reconnaissance facilities more effective and the status of battlefield more advantageous, on the basis of classification of the atmospheric duct, first the model for evaluating the effective detective zone of electronic reconnaissance facility is established, then the numerical value simulation method of electromagnetic wave propagation under the condition of surface duct calculated with parabolic equation and fourier arithmetic is presented, and finally the influences of atmospheric duct on electronic reconnaissance facility is analyzed

    為充分利用大氣波導條件，發揮電子偵察設備效能，使戰場態勢向有利於己方方向轉化，在介紹大氣波導分類的基礎上，建立評估電子偵察設備的有效探測區的模型，給出用拋物線方程及其分佈傅里葉演算法計算電磁波在表面波導條件下傳播的數值模擬方法，並分析了大氣波導對電子偵察設備的影響情況。
  12. People mostly choose traditional fourier transform to process surface wave data anciently

    在對瑞雷面波勘探資料進行處理時，以往主要採用常規的fourier變換。
  13. Analysing the texture of wear surface image through fourier frequency spectrum and grey matrix eigenvalue, image texture has respective character because of affection of different wear methanism

    通過傅立葉頻譜和灰度共生矩陣特徵量的提取對圖像進行紋理分析，由於不同磨損機制的作用，圖像紋理具有不同的特性。
  14. 2 ) fourier amplitude spectrum analysis : ( 1 ) the fourier amplitude spectra decrease with the increment of depth ; and the components of fourier spectrum become complex in near - surface. ( 2 ) the fourier amplitude decrease faster in shallow soil level, and smaller in deep soil level. ( 3 ) compared with the deepest bedrock fourier spectrum, spectral components of higher than 5 hz decrease with depth decrease

    2 .地震動傅立葉振幅譜沿深度的變化規律（ d隨著深度的增大，傅氏譜振幅逐漸減小;越接近地表傅氏譜的頻譜成份越多，形狀越復雜;傅氏譜振幅值在淺層沿深度的下降梯度較大，在深層下降較小; 「土層/基巖」場地的基巖內_匕下兩測點的地震動頻譜沿深度幾乎不變，傅氏譜十分相似; d基巖以上的土層測點，高於shz的高頻成分減少。
  15. These are correlation characteristic parameter, fourier spectrum characteristic parameter, power spectrum characteristic parameter, time domain amplitude characteristic parameter, linear prediction coding coefficients, instantaneous characteristic parameter, absorb and decay coefficient, velocity characteristic parameter and wavelet packet transform characteristic parameter. the parameters contain the surface relatively wide, the prediction which is suitable for the goal of many kinds of seism needs

    分別為：自相關特徵參數、付立葉譜特徵參數、功率譜特徵參數、時域振幅特徵參數、線性預測編碼系數、瞬時特徵參數、吸收衰減系數、速度類特徵參數和小波包變換特徵參數，參數涵蓋面較寬，適用於多種地質目標的預測需要。
  16. In this part, response spectrum and fourier amplitude spectrum are studied, the main results are as follows : 1 ) response spectrum analysis : a ) absolute acceleration response spectrum ( sa ) : ( 1 ) in general, response spectrum decrease with depth, for m < 4. 5, the shape and the predominant period of each response spectrum in different depths are similar : the variation of spectra with depth focus on near - surface level ; the normalized spectra are similar to each other, except the predominant perk value in middle depth of some earthquakes is higher than other depth

    地震動反應譜沿深度變化的規律（ l ）加速度反應譜（ s 、 ）沿深度的變化規律一般，加速度反應譜（ s 。 ）隨深度的增加而減小。震級較小時，不同深度各測點的反應譜形狀很相似，卓越周期基本一致;淺層處反應譜沿深度的變化梯度較大;深層處反應譜大小比較接近;強震時，反應譜形狀在短周期有較小差別，長周期逐漸接近。
  17. The experimental results show that the surface si - oh bonds infrared intensity of ultrafine silicon dioxide was decreased and thermogravimetric loss was increased by using fourier infrared ( ftir ) spectroscopy and thermogravimetric ( tg ) analyzer

    傅立葉紅外光譜和熱重分析結果表明，改性后的超細二氧化硅顆粒表面的硅羥基吸收峰明顯減小。
  18. Retrieve surface emissivity from airborne fourier transform infrared spectrum

    地表發射率的機載傅里葉變換紅外光譜反演方法研究
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