磁擴散 的英文怎麼說

中文拼音 [cíkuòsǎn]
磁擴散 英文
magnetic diffusion
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  1. And is it the same as under radiation heating ? do the special electric and magnetic fields produced by bpec accelerate atom diffusion ? understanding the above questions fully is a key to expose the mechanism of pecht

    在脈沖大電流加工過程中原子是如何擴散的，與一般的加熱燒結、焊接是否一樣，脈沖大電流形成的特殊電場及磁場是否對原子的擴散有大的推動作用，弄清這些問題成為進一步揭示脈沖大電流熱加工機理的關鍵。
  2. In this paper, three unique models were designed to research atom diffusion at interface, contacting line and joining point under bpec heating and compare with it under radiation heating in order to find out if bpec speed atom diffusion. the first model was aimed to research atom diffusion at interface under bpec heating. experiment condition of bpec diffusion welding sheet cu and ni : direct diffusion welding, at a pressure of l0mpa, welded at 750 ~ 900, with heat rate of 200 ~ 400 / min for 10mm, on / off of 6 / l ~ 48 / 8, with die or not, vacuum of 6pa

    本文設計出三種樣品預構件，研究脈沖大電流加熱條件下片狀材料、線狀材料和球形顆粒之間的原子擴散過程，弄清脈沖大電流加熱條件下原子擴散與一般燒結和焊接過程中原子擴散的區別，以證實特殊的電場和磁場是否對原子的擴散有推動作用，揭示脈沖大電流加熱條件下原子的擴散過程，探索脈沖大電流熱加工技術快速高效的原因。
  3. Diffusion - weighted imaging ( dwi ), which successfully discriminats acute from chronic infarct, is particularly useful in patients with multiple infarcts in more than one territory

    擴散磁振造影因能分辨急性與慢性病灶而成為檢查急性多發性腦梗塞的利器。
  4. We describe a 57 - year - old man who presented with simultaneous large middle cerebral artery territory infarction and posterior cerebral artery territory infarction confirmed by dwi

    我們報告一大范圍的中大腦動脈及后大腦動脈同時發生腦梗塞，並經由擴散磁振造影確認的病例。
  5. Dwi reveals the accurate site of lesion earlier than traditional images, which indicates a better correlation between symptoms and etiology of stroke, and considerable improvement in patient care

    在診斷急性多發性腦梗塞時，擴散磁振造影能盡早指出正確的病灶位置，故有助於判斷病因，並修正治療方法。
  6. It is a dozen metals in one ; now almost diamond - hard - - and again almost as soft as copper ; here brittle as glass ? there malleable1o as silver ; now welding quite readily - - again, very difficult to weld ; melting rather easily - - at other times difficult to diffuse ; usually very magnetic - - and : again almost non - magnetic ; an excellent conductor of heat and electricity - - and at times stubbornly resistant to both

    鐵將十多種金屬特性合而為一：時而幾乎堅硬如金剛石，時而又柔軟如銅；此處易碎如玻璃，彼處又可展延如銀；時而很容易焊接，時而又很難焊合；有時相當易熔，有時又極難擴散；通常情況下富有磁性，但有時又幾乎磁性全無；本是熱和電的優良導體，但有時卻頑強地抗拒二者。
  7. The procedure to modify the sss code is as follow : at first the hom eos ( equation of state ) is replaced by the sesame eos, secondly the magnetic force is added to the momentum equation, the ohmic heating rate is added to the energy conservation equation

    對sss程序改造過程大致如下：首先以sesame數據庫物態方程替換sss程序原有的物態方程；其次在動量守恆方程中加上洛侖茲力項，在能量守恆方程中加上單位質量焦耳加熱項，通過麥克斯韋方程推導出磁擴散方程。
  8. Adding on brain atlas, ct - mri image fusion, important functional active areas detected by functional magnetic resonance imaging and white matter fibers tracked from diffusion tensor imaging into an image guided neurosurgery system can help doctors a lot for locating, recognizing and protecting brain area during neurosurgery operations

    通過在圖像引導神經外科系統中融合功能腦圖譜、 ct - mri圖像融合、功能磁共振圖像檢測到的重要腦功能區與擴散張量成像追蹤到的白質纖維束信息，可以在神經外科手術中幫助醫生精確定位、識別或保護重要腦區。
  9. The theory and experiment of measuring diffusion coefficients in terms of mr signal attenuation has been established for decades, but recent advance of diffusion tractography has enabled us, for the first time, to visualize and analyze the axonal fiber tracts in the living brain non - invasively

    其實，利用磁振訊號衰減量測到擴散系數之理論與實驗已確立了幾十年，但近年來擴散神經纖維束造影的發展，第一次使我們能夠在活體非侵襲性的觀察和分析神經軸突纖維束。
  10. By sims method, we analyzed the profile distribution of mn and c, found that increasing the annealing temperature is beneficial to the diffusion of mn, but has no influence to c. mfm and squid measurements demonstrate that sub micron single - domain magnetic mnas particles found in sample annealing at 850 for 15s show ferromagnetism at room temperature and have a high curie temperature more than 300k

    利用二次離子質譜方法對mn和c在樣品中的分佈進行了研究，發現退火溫度的上升，有利於mn的擴散；而對c的分佈影響較小。利用磁力顯微鏡和超導量子干涉儀對樣品的磁性質進行了研究。發現在850 + 15s退火處理的樣品中形成了亞微米級單疇磁性mnas粒子；經測試其在室溫下呈現出鐵磁性，居里溫度在300k以上。
  11. Formalin - fixed small animal brains magnetic susceptibility artifact control in single shot echo planar diffusion tensor imaging

    固定小動物腦標本單次激發回波平面擴散張量成像中磁化率偽影的控制
  12. Pathological changes of amyotrophic lateral sclerosis with in vivo magnetic resonance spectrum and diffusion tensor imagings

    在體磁共振波譜及擴散張力成像觀察肌萎縮性側索硬化的病理變化的研究
  13. The thesis points out that while large investment in agriculture has not started, small towns in yuebei mountain area should have pre - consciousness. they can not completely copy the experience of " industrialization of village " in coastal developed area. they should make full use of their specific characteristics and advantages to develop anti - magnetic nucleate towns, so as to strengthen their magnetic force and influence, therefore counter against the strong appeal of factor of production and create conditions to meet the industrial expand from the developed pearl river delta

    文章概述了「反磁力型」中心鎮的思想淵源和區域基礎，指出在工業發展尚未達到反哺農業的階段，粵北山區小城鎮應當具有超前意識，利用自身優勢和特色發展「反磁力型」中心鎮，提高其吸引力和輻射作用，從而抗衡沿海發達地區對生產要素的強大吸引力，同時也為下一階段接受珠江三角洲等沿海發達地區產業擴散創造條件，而不能一味地模仿沿海發達地區「農村工業化」的路子。
  14. Before reforming the code to be a mhd, the boundary condition of sss code is modified, so that we can calculate the electro - magnetic implosion of ideal conductive liner, where the magnetic field diffusion is neglected

    在進行一維磁流體力學改造之前，我們計算了磁壓驅動沒有磁擴散的理想導體內爆算例，主要是對sss程序的壓力脈沖邊界條件進行修改。
  15. Using the structure of diffused electric doublet layer based on dlvo theory, we analyze the factors which influence the cofe2o4 ionic magnetic fluid ' s stability, and they include magnetic particles " diameter d, magnetic fluid ' s q, magnetic particulate volume ratio v, and the viscous layer on the surface of particles

    以dlvo理論為基礎，利用擴散雙電層結構分析得知，影響cofe _ 2o _ 4離子型磁性液體穩定性的因素有：磁性微粒粒徑d 、磁性液體的q值、磁性微粒的體積分數_ ，以及磁性微粒表面粘性層的存在。
  16. The variation must in a swimming pool will soon diffuse throughout the pool, a concentration of magnetic field lines diffuses throughout the planet ' s outer core

    與游泳池中一滴有色的染料在池中迅速擴散的方式一樣，一個濃縮的地磁場曲線的擴散遍布地球的外核。
  17. So the rare field reversals are most likely caused by larger changes in the flow in the outer core, or in the way in which the field lines are wound into the flow by diffusion

    這樣，不經常發生的磁場倒轉，很可能是由外核流體或磁場曲線通過擴散宛然進人流體方式發生較大的變化而引起的。
  18. The gas sources that we used are trimethylgallium ( tmg ) and 99. 9999 % purity nitrogen, which were fed into reaction chamber and resonance cavity respectively. the highly dense ecr plasma up to 1011cm - 3 was created in the resonance cavity and introduced to the next reaction chamber by the force of divergent magnetic field. consequently, gan thin film was grew on the substrate sapphire ( 0001 ) placed in the downstream

    實驗採用有機金屬三甲基鎵氣源（ tmg ）和99 . 9999純度的氮氣，在ecr - pecvd150裝置共振腔內電子迴旋共振吸收微波能量產生的高密度ecr等離子體在磁場梯度和等離子體密度梯度的作用下向下級反應室擴散，在放置於下游區樣品臺上的- al _ 2o _ 3襯底表面附近發生物理化學反應沉積成gan薄膜。
  19. In succession, tini thin film is deposited on single - crystal silicon substrate using optimized parameters utilizing sputtering, and its transformation temperature ( a * ) is 72 ? indicated by dsc curve after being annealed in an ultra - high vacuum ( uhv ) chamber. in addition, the composition of the silicon - based tini film was analyzed by an energy dispersive x - ray spectroscopy ( eds ), and the ti content in the film is approximately 51at %

    按照改進的工藝參數，在單晶硅襯底上濺射-淀積了tini薄膜，並進行了超高真空退火， dsc法測得其馬氏體逆相變峰值溫度為72 ，利用能譜分析（ eds ）技術測得其ti含量約為51at ，通過對非晶tini薄膜與單晶硅襯底之間的界面進行eds及x射線衍射（ xrd ）分析，發現在用大功率（ 2000w ）直流磁控濺射法制備tini薄膜過程中，存在ti 、 ni與si的雙向擴散，發生了界面反應，並有三元化合物ni _ 3ti _ 2si生成。
  20. Fluid motions try to reverse the field on a few thousand years timescale, but the solid inner core tries to prevent reversals because the field cannot change ( diffuse ) within the inner core as quickly as in the fluid, outer core

    盡管流體運動會在幾千年的時間尺度上使磁場倒轉，但因為磁場的變化（擴散）在內核里不能與在外核的流體中一樣快，所以固體的內核會盡力阻止倒轉。
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