中子衍射法 的英文怎麼說

中文拼音 [zhōngziyǎnshèfǎ]
中子衍射法 英文
neutron diffraction technique
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
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  1. By the methods of epn ( electronic probing needle ) 、 sem and xed, the formation mechanisms of the wear - resistant composite layer are studied, the results indicated that, molten iron has infiltrated into the alloying layer under capillary action. this caused ht powder, whose fusion point is low relatively, to be surperheated and formed a surface composite layer

    利用電子顯微鏡及x射線衍射等試驗方法，研究了復合層形成機理，研究表明，復合層是在毛細力作用下，鐵液被吸入合金層中，致使低熔點ht粉過熱熔化而形成的，並與母材是冶金結合。
  2. The primary theory of absorption and desorption was also explained. the effects of primary process parameters, such as hydrogen pressure, time and temperature on the magnetic properties of ndfeb have been researched. the structure and magnetic properties have been analyzed by means of optical metallographic microscopy, scanning electronic microscopy, x - ray diffraction analysis, infrared oxygen detector and magnetic properties measurement

    本文設計了燒結ndfeb的氫爆制粉設備，對設備調試以及使用過程中出現的主要問題進行了簡要的說明，提出了一系列解決方法；闡述了吸氫、脫氫的基本原理；研究了氫氣壓力、通氫時間、氫爆溫度等基本工藝參數對磁性能的影響；利用金相顯微鏡和掃描電子顯微鏡， x射線衍射分析，紅外線測氧分析及綜合磁性測量儀等手段分析了材料的組織結構和磁性能。
  3. The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected

    用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究，提出了一系列可供參考的數據：確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角；討論了第二準直器的尺寸和發散，以及使用第二準直器造成的強度損失；給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率，以及多種組合情況下譜儀的解析度曲線；對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。
  4. Based on laser molecular beam epitaxy, the strain behavior and the corresponding control technology in oxides heteroepitaxial system, especially in ferroelectric thin films with perovskite structure, was systematically studied by using in situ reflected - high - energy - electron - diffraction ( rheed ). some original and meaningful results were obtained. following aspects were included in this dissertation : the structure of thin films is analyzed by rheed

    本論文基於激光分子束外延的基本原理，以高能電子反射為主要監測工具，對氧化物薄膜特別是鐵電氧化物薄膜異質外延過程中應變行為及其控制方法進行了系統的研究，並取得了一系列有意義的結果，主要包括以下內容:利用反射高能電子衍射（ rheed ）的信息對薄膜結構進行分析。
  5. The extracted height - height correlation function and the random surface parameters obtained ever since conform with those obtained by the measurement of afm in chaper 3, based on the light scattering theory of kirchoff approximation, we propose the method for the extraction of surfaces parameters from the correlation functions of speckles intensity produced by light scattering in the region near the random surfaces

    我們以對三個高斯相關的隨機表面樣品的實驗測量為例，對該方法行了驗證。所測得的結果與用原子力顯微鏡測量的結果符合得很好。第三章根據基爾霍夫近似下的光散射理論，提出了從隨機表面附近衍射區內的散斑場相關函數中提取隨機表面參量的方法。
  6. During the experiment of protein crystal growth in space carried by chinese re - entry capsule fsw - 2, the crystals of barheaded goose hemoglobin suitable for x - ray analysis were obtained both in space and earth as contrast group. the diffraction data of both crystals were collected, and the structures were solved using molecule replacement methods. the comparison of structures in space and earth indicate that, the interactions among molecules in crystal and subunits of molecule in space is weakened relative to the crystal on earth, there is a contact in the

    在1994年我國返回式衛星fsw - 2上進行的空間蛋白質晶體生長實驗中，獲得了適合於x射線分析的空間實驗組和地面對照組的斑頭雁血紅蛋白晶體，並收集了x射線衍射數據。應用分子置換法解析了結構，並進行了比較研究。結果顯示空間晶體的分子間和分子中亞基間的相互作用趨于減弱，在
  7. Catalysts were prepared by impregnation reduction, thermal reduction, advanced thermal reduction and sol - gel methods from these metals. electrochemistry measurements, xrd, tem were used to test these catalysts. the results showed that these metals have some electrocatalysis activities towards hydrogen oxidation reaction

    本文選擇了w 、 mo 、 co等金屬，採用浸漬還原法、熱還原法、改進的熱還原法以及溶膠凝膠法分別制備了這幾種金屬的碳載催化劑，對制備出的非貴金屬催化劑進行了電化學測試、 x -射線衍射（ x - raydiffraction ， xrd ） 、透射電子顯微鏡（ transmissionelectronmicroscopy ， tem ）等測試，研究結果表明:這些非貴金屬在硫酸體系中對氫氣的氧化反應均有一定的催化活性。
  8. Especially, the nano - iron and nano - tungsten sols as well as their powders were characterized in detail by xrd, ft - ir, uv - vis, xfs, tem, sem, edax and so on. another new method is put forward firstly to estimate the addition of dispersants and its effect by uv - vis

    重點選取納米鐵乙醇溶膠和納米鎢乙醇溶膠以及其中的納米顆粒進行了詳細表徵，所涉及的測試方法包括x射線衍射、傅立葉紅外光譜、紫外-可見光譜、熒光光譜、透射電子顯微鏡及選區衍射、掃描電子顯微鏡及微區能譜分析等等。
  9. The thesis mainly investigated the bati _ 4o _ 9 ( bt _ 4 ), which has the lowest dielectric loss in ba - ti system, and ( ba, sr ) tio _ 3, the a position substitute compound of batio _ 3. the dielectric properties of bt _ 4 / bst with different preparation way and different elements doping were investigated. a archimedes method, xrd, sem, impedance analyzer, network analyzer and hakki - coleman method were used to investigate the density, phase formation, microstructure, dielectric properties and doping mechanisms

    本論文以在ba - ti系中具有最低介電損耗的bati _ 4o _ 9 （ bt _ 4 ）高頻介質陶瓷和batio _ 3a位sr取代而得的（ ba ， sr ） tio _ 3 （ bst ）高頻介質陶瓷作為研究對象，對不同粉體制備方法制備的bt _ 4 / bst高頻電介質材料進行不同元素的摻雜，運用阿基米德方法， x射線衍射分析儀，掃描電子顯微鏡和阻抗分析儀，網路分析儀， hakki - coleman法等方法手段和測試儀器測試燒成樣品的密度，相組成情況，微觀結構和介電性能，探討造成介電性能起伏的形成機理。
  10. This part emphasizes the synthesis of nanoarrays, aiming at controlling the size and distance of nanocrystallites using calixarene derivatives by altering the size, length and chemical structure of the organic molecules ; 2. this part emphasizes in situ synthesis strategy for fabrication of polymer network of zns based nanopowder, aiming at size controls, coating and preventing agglomeration following " one - pot " synthesis ; this method fits to low cost, large scale production ; 3. according to development in zno nanomaterials, we first report on the synthesis, characterization of amorphous zno, aiming at describing the principles and approaches of synthesis techniques, optical properties, spatial structure and doped effect ; the amorphous zno displays cage - like structure, showing a strong ultraviolet emission while the visible emission is nearly fully quenched, a potential uv - emission material ; 4

    本論文以量子結構自組裝為出發點，提出利用杯芳烴及其衍生物的化學受限反應實現尺寸可調半導體納米粒子自組裝；提出有機聚合網路原位組裝zns基納米熒光粉方法，把熒光粉的納米化、包敷、防團聚在「一鍋」反應中完成，適于低成本，批量生產；根據當前zno的研究情況，我們首次合成了非晶zno ，研究了它的光學性質，確定了它的結構，並對其摻雜進行了初步的研究，非晶zno表現出強的深紫外發光特性，而可見發射非常弱，是一種有巨大潛在應用價值的深紫外發光材料；利用非晶zno的亞穩特性，對晶化過程中非晶zno納米晶zno三維受限量子結構特性，界面特性進行了深入的研究；利用固相熱分解一般受擴散控制特性，實現了尺寸可控的zno三維量子結構的自組裝；利用非晶zno的高度分散性，容易均勻成膜特性，實現了非晶籽晶誘導低溫液相外延自組裝生長高取向zno晶體薄膜。
  11. The thesis analyzed the effects, associated with the propagation of laser in plasma channel, such as diffraction, plasma defocusing, the third - order intensity - dependent nonlinearity, the relativistic self - focusing, the focusing and defocusing of the plasma channel, and the absorbtion in the collision plasma and the finite pulse length effect

    文中用哈密頓-雅可比方程方法和源展開方法分別對激光在等離子體隧道中傳輸所涉及的衍射效應、等離子體散焦效應、三階強度非線性、相對論自聚焦、等離子體隧道的聚焦和散焦效應、碰撞等離子體中的吸收效應、有限脈寬效應等等做了基本的闡述。
  12. The relationship between sputtering conditions and the depositional speed shows : with working pressure 1. 2 pa, sputtering power 180w, the depositional speed of tio2 thin film is 40nm / h, and increases with the increasing of sputtering power. it can be also founded that the depositional speed is nearly proportional to the working pressure : within the range of 0. 3pa to 1. 6pa, the depositional speed increases linearly with the increase of ar pressure. with the enhancement of the substrate ' s temperature of sputtering or annealing, the resulted thin films show a tendency of decreasing in thickness, and increasing in refractivity

    本實驗是採用磁控濺射方法，在不同的溫度下制備了tio _ 2薄膜，並對薄膜進行了不同溫度和時間的退火處理，通過原子力顯微鏡（ afm ） 、 x射線衍射（ xrd ） 、掃描電鏡（ sem ）等檢測手段對薄膜的表面形貌和組成結構進行了分析，結果如下： （ 1 ）濺射工藝條件與薄膜沉積速度的關系表明：採用1 . 2pa工作氣壓， 180w的射頻功率tio _ 2薄膜的沉積速率為40nm h ，並隨射頻功率的增加而提高，呈近似的線性關系，在0 . 3pa 1 . 6pa氣壓范圍中，氬氣壓強升高沉積速率迅速增加，濺射溫度提高和退火處理能使薄膜的厚度減小和折射率提高。
  13. The principles of differential scanning calorimetry, electron microscope, nuclear magnetic resonance and x - ray were introduced in this paper together with their applications in oil quality control, development direction of investigation on oil quality control was also forecasted here

    摘要介紹了現代物理化學方法（差示掃描量熱法、電子顯微鏡、核磁共振法、 x -射線衍射法）的原理及其在油脂質量控制中的應用，並預側了油脂質量控制研究的發展方向。
  14. ( 211 ) reflection of the polycrystal a - iron sample is used in the simulation experiments, and both the resulting full - width - at - half - maximum ( fwhm ) of the diffraction peaks and peak shifts under tensive and compressive strain are in accord with that expected from analytical methods. the instrumental resolution curves, under various combination of the first collimator and second collimator and take - off angle of the monochromator, are given

    用- fe多晶樣品的（ 211 ）晶面進行了模擬實驗，得到的衍射峰半高寬以及拉應變和壓應中國原子能科學研究院博士學位論文變作用下衍射峰移動的模擬結果都與解析方法的預期值符合得很好。
  15. According to the significant improvement in properties of ions and particles doped perovskite, tb and cnt doped pt materials were prepared, and the properties studied. tb and cnt doped pt powders and films were successfully prepared by sol - gel method. by differential thermal analysis ( dta ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ), x - ray diffraction ( xrd ), fluorescent analysis and dielectric constant analysis, the morphology and phase transformation, crystalline properties, fluorescent properties and dielectric properties of the materials were studied

    本研究中採用溶膠凝膠法制備了具有優良結晶性能的稀土離子tb及納米碳管摻雜的鈦酸鉛（ pt ）超細粉末和（ 100 ）取向生長的薄膜，並利用差熱分析、掃描電子顯微鏡、透射電子顯微鏡、 x射線衍射、熒光分析和介電常數等多種分析測試手段對摻雜后的pt薄膜及超細粉末的相結構、光學性能、結晶性能以及介電常數等進行了研究。
  16. Application of modern analytical technology in quality control of traditional chinese medicine ( tcm ) are introduced in this paper, including chromatographic techniques, spectral techniques, nuclear magnetic resonance ( nmr ), mass spectrometry ( ms, gc - ms, lc - ms, ce - ms, icp - ms ), dna fingerprint techniques, x - ray diffraction techniques

    摘要介紹色譜法、光譜法、核磁共振波譜、質譜及其聯用技術、 dna分子診斷技術、 x射線衍射法等幾種現代分析方法在中藥質量控制中的應用。
  17. Non - destructive testing - standard test method for determining residual stresses by neutron diffraction iso ts 21432 : 2005 ; german version cen iso ts 21432 : 2005

    無損檢驗.用中子衍射測定殘余應力的標準試驗方法
  18. Nanocrystalline cerium ( iv ) oxide ( ceo2 ) powders were prepared by means of different methods, sol - gel method, precipitation method and electrochemical method. the powders were analyzed by using x - ray diffraction ( xrd ) and transmission electron micrograph ( tem ). ceo2 powders in different ways were compared from shape of particles and preparation technics

    本文主要採用液相法中的溶膠-凝膠法、均勻沉澱法和電化學法制備了ceo _ 2納米粉體，通過x -衍射、透射電子顯微鏡等手段對所制備的納米粒子進行了表徵，並從粒子的形態及制備工藝上進行了比較。
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