dispersion of particles 中文意思是什麼

dispersion of particles 解釋
粒子的分散
  • dispersion : n 1 分散，散開；散布，傳播；離散。2 【物理學】彌散，色散；【化學】分散作用；被分散物；分散相，分...
  • of : OF ＝Old French 古法語。
  • particles : 粒子系統工具欄
  1. Beryllium powders with the same particle size and various contents of beo were prepared by pre - sintering - acid washing processes initiatively and the influence of beo alone on o mys of beryllium was observed and some new results have been obtained - compared with the content of beo, the distribution of beo in beryllium has more critical influence on mys ; finely dispersed beo along the grain boundaries and in the matrix results in the dispersion strengthening of beryllium matrix and thereby the higher mys value ; on the contrary, the coarser beo particles clustering on the grain boundaries results in negative influence on o mys

    開創性地用預燒結? ?酸洗工藝制備了相同粒度、不同beo含量的鈹粉，從而開展了beo含量單獨對鈹材_ （ mys ）影響的研究，得出一些新的結果：與beo含量相比， beo在鈹中的分佈狀態對_ （ mys ）的影響更大。沿晶界、晶內彌散分佈的較細小beo對基體鈹有彌散強化作用，使_ （ mys ）即較高；如果beo較粗大地成簇狀聚集在晶界，反而對_ （ mys ）有不良的影響。
  2. Colloidal particles are bombarded by molecules of the dispersion medium.

    膠粒會受到分散介質分子的碰撞。
  3. In this thesis, in order to reducing the amount of the pt catalyst, improving the electrocatalytic activity of the pt catalysts and utilization ratio of pt, the electrochemical codeposition method by cyclic voltammetry ( cv ) was used to prepare a series pt / moox / glassy carbon ( gc ) composite electrodes with high dispersibility. the composite electrode, pt / moox / gc, was characterized to study its composition and its electro chemical behavior by cv. using the xrd and sem techniques, the size and the dispersion degree of the catalyst particles were studied in presence or absence of moox in the catalyst

    為了降低主催化劑pt的用量、提高pt的活性和利用率，本論文利用循環伏安法共沉積制備高分散的pt moo _ x催化劑顆粒，利用循環伏安電化學表徵、 xrd和sem技術研究了引入moo _ x后的催化劑即pt moo _ x顆粒的粒子大小、分散狀態；利用icp - aes定量分析pt moo _ x催化劑顆粒的組成含量；並藉助于電化學方法分別評價了pt moo _ x gc電極催化劑的對甲醇的電催化活性和穩定性、氧還原電催化活性。
  4. The interactions between particles were discussed based on dlvo and edlvo theories. experiment results show the effect of the ph on the dispersion is due to the repulsion interactions of electrical double layer ; and addition suitable inorganic dispersant or organic macromolecule dispersant results in improvement the stabilization of the dispersion. the main action of the inorganic dispersants is to increase the repulsion interactions of electrical double layer and the main action of organic macromolecule dispersant is to increase hydration shell and steric hindrance

    研究表明： ph對顆粒分散的影響主要體現在對顆粒間雙電層靜電排斥力的改變；添加合適分散劑可以改變顆粒在水中的分散性；無機電解質的分散機制主要是增加顆粒表面的雙電層靜電排斥作用能，而高分子分散劑的分散機制主要是增加顆粒的水化膜排斥能和位阻排斥能；復合分散劑的分散效果要優于單一分散劑；提出了用經時損失性來評價分散穩定性。
  5. And the following conclusion was got : generally, the existence of particles would limit and retard the developing of the coherent structure of the turbulent fields ; but when the mass loading is a little high, the existence of particles would promote the developing of the turbulent field ; at the same time, the gas flow field would enhance the particles " dispersion. at this time, the interaction between the two phased would promote each other. this phenomenon is just like the " sympathetic vibration " in mechanical engineering

    認為：在一般條件下顆粒的存在會限制、遲滯流場的發展；但對于質量2002年6月?金晗輝摘要攜帶率較高的情況，在流場發展到一定程度以後顆粒的反作用會促進流場的發展;反之，在顆粒質量攜帶率較高的情況下，受顆粒反作用的氣相流場又會加強顆粒在流場空間中的擴散，揭示出氣粒兩相相間作用在一定的顆粒質量攜帶率條件下存在「共振現象」 。
  6. A series of near roundness cds nanoparticles with a particle diameter of 3 ~ 6nm have been prepared by controlling the concentration and proportion of reactants and adopting sodium hexametaphosphate as stabilizing agent. the studies demonstrate that these particles present obvious quantum size effect and an appropriate excess of cd2 + ion and hexametaphosphoric acid group polysnion are helpful to the dispersion and flame capability ' s improvement of particles. another series of near roundness monodisperse au nanoparticles with a diameter of 12. 3nm was prepared via sodium citric acid deoxidizing auric chloride acid

    利用六偏磷酸鈉作為穩定劑，通過控制反應物的濃度及比例，制備了粒徑為3 6nm 、呈近似球形的cds納米顆粒，光譜測試結果表明，顆粒具有明顯的量子尺寸效應，適當過量的cd ~ （ 2 + ）離子以及六偏磷酸根聚陰離子有助於顆粒的分散並提高其發光性能；採用檸檬酸鈉還原氯金酸，制備了接近球形、平均粒徑約為12 . 3nm的單分散體系au納米顆粒；採用wessling的前驅聚合物法獲得導電聚合物ppv前驅體。
  7. In addition, the vortex structures of the gas flow field and particle dispersion were studied when the coupling action between the two phases was considered in the case of different mass loading of mediate stokes number particles was provided in the gas - particle plane jet

    另外，文中還模擬研究了氣粒兩相平面射流中不同質量攜帶率下中等stokes數顆粒與氣相流場的相間耦合作用下氣相流場的旋渦擬序結構以及顆粒運動擴散規律。
  8. It is the fist thing to make particles to mix with htpb equally by the mixer. many superfine particles with various particle diameters, varieties, content and surface coated had been employed to study the influence on viscosity and dispersion of the slurry

    為了使加入的粉體通過捏合機的捏合，在丁羥膠中得到均勻的分散，我們分別研究了粉體的粒度、品種、組成及粉體表面經包覆處理后，對推進劑漿料的粘度、分散性的影響。
  9. In allusion to the agglomerates of tio2 particles, dispersion process of the nanoparticle tio2 in water was studied with mechanism whisk and dispersant, and the dispersing effects were measured by the methods of spectrophotometer

    針對納米tio _ 2顆粒的團聚，採用機械攪拌和分散劑的作用，對納米tio _ 2顆粒在水介質中的分散穩定性進行了研究，用分光光度法對分散效果進行了評價。
  10. The porous ceramics is composed of lots of bridge arch - shaped microspores that connected and well - distributed inside the material. when the fluid passes through these pores, the suspended matters, colloid particles and big molecular organic substances are withheld or absorbed to the inner surface of the pore, and result in filtration, purification adn even - dispersion, high strength, good resistance to abrasion, high temperature and corrosion, no pollution, long workinglife, and easy to regenerate, the porous ceramics are available for filtration and fluidization of variou gas and liquid

    微孔陶瓷過濾介質由許多大小分佈均勻，相互連通的橋拱狀開口氣孔組成.當流體從這些氣孔中通過時，流體中的懸浮物質，膠體顆粒，大分子有機物等被截留，吸附在微孔道內，從而達到了凈化和過濾均勻化的效果.微孔陶瓷強度高，耐磨損，耐高溫，耐腐蝕，無污染，氣孔分佈均勻，使用壽命長且再生簡便，特別適用於各種氣，液過濾和流態化過程
  11. At the same time, dispersion of different stokes number particles influenced by the ordered large - scale turbulent structures of the carrier gas phase was investigated. and the following " conclusion was drawn : particles of mediate stokes number mainly concentrated in the outer boundary region of large scale eddies, and they had the nignest dispersion rate ; particles or little stakes number mainly lay in the core region of the eddies, and they had the lest dispersion rate ; though particles of large stokes number distributed throughout the eddy structures

    同時還模擬研究了不同stokes數顆粒在二維流場旋渦擬序結構作用下的運動擴散特性，詳細描述了不同stokes數顆粒在流場中的空間分佈規律，認為：中等stokes數顆粒集中於流場旋渦的外沿區域，在流場空間中的擴散率最高；小stokes數顆粒集中於流場系列旋渦的渦核區域，在流場空間中的擴散率最低；而大stokes數顆粒則遍佈於流場旋渦渦核和渦外沿區域。
  12. The dispersion of the modified nano - sized caco3 in the pvc matrix was observed in tem ( transmission electron microscope ). the influences of surface treatment and the contents of nano - sized caco3, extrusion technology and other additives on the properties of the composites were investigated. the results show that the surface treatment of the nano - sized caco3 particles with wet method enlarged the specific surface area and reduced the surface energy of the particles, and made the particles dispersed at the nanometer level in the pvc matrix, which improved the mechanical properties of the composite

    本課題為了解決納米caco _ 3在pvc中的分散問題，對納米caco _ 3粒子進行了濕法處理，採用雙螺桿擠出法制備出具有良好性能的pvc -納米caco _ 3復合材料；對復合材料的力學性能和加工性能進行了測試；利用tem （ transmissionelectronmicroscope ，透射電子顯微鏡）觀察了納米caco _ 3粒子在pvc基體中的分散情況；討論了納米caco _ 3的表面處理方法、納米caco _ 3的含量、復合材料的制備工藝以及各種助劑對復合材料各項性能的影響。
  13. This kind of catalyst was very fine, with strong interaction between the support and the active component particle, and high dispersion of such particles on the surface of the support. yield of carbon nanotubes can also be improved greatly by the doping of molybdenum to catalyst

    本文所採用的檸檬酸法瞬時燒爆工藝制備的催化劑，顆粒小，載體與活性組分接觸好，活性組分分散均勻，可望實現單壁納米碳管的大規模製備。
  14. At last, three - dimensional mathematical model of gas - particle two phase turbulence was established, and it was adopted to study the gas - particle two phase rectangular jet as well. the distribution of the time - averaged velocity and turbulence intensity was studied, and some of the simulation results were compared with the experimental results ; the coherent structure of flow field was described in the three direction, the evolution and motion of the eddies was discussed too ; the dispersion of fine particles in the three dimensional space was also investigated

    全面地分析了矩形射流氣相時均流場的速度、湍流強度的空間分佈規律，並就部分數值模擬結果與實驗結果進行了對比研究;描述分析了氣相流場湍流擬序結構，對流向、橫向和展向三個方向旋渦的空間結構特點進行分析研究，並分析了流向渦隨時間變化的發展、運動規律。
  15. By compounding caco3 with pp, the effect of caco3 content, diameter and shape on the crystallization, dispersion morphology and properties of pp / caco3 composites was investigated. the results showed that addition of caco3 into pp decreased the apparent crystal size in perpendicular direction to the ( 110 ), ( 040 ) and ( 130 ) crystallographic planes of ppa crystal, and with similar uniform dispersion of caco3, the dominant factor influencing toughness is the diameter of caco3 particles, but not the decrease of pp crystal size. the toughening effectiveness of nano caco3 is obviously better than that of micron caco3

    將caco _ 3與pp進行填充復合，研究了caco _ 3含量、粒徑及形狀對體系的結晶，分散形態及性能的影響，發現碳酸鈣的加入使聚丙烯晶型垂直於（ 110 ） 、 （ 040 ）和（ 130 ）晶面的表觀晶體尺寸減小，揭示了在分散均勻的情況下，影響材料韌性的主導因素不是晶粒尺寸的減小，而是碳酸鈣的粒徑，納米張玲：彈性體及無機剛性粒子增韌增強聚丙烯復合材料的研究碳酸鈣的增韌效果明顯優于微米碳酸鈣。
  16. The results indicate that, the viscosity of the slurry is increased and the dispersion of the slurry is decreased along with the superfine particle diameter decreasing ; the viscosity and dispersion of the slurry are obviously influenced by the variety of particles ; the viscosity of the slurry is increased and the dispersion of the slurry is decreased along with the superfine particle content in the slurry decreasing

    研究表明：隨著粒子粒徑的減小，粒子在漿料中分散難度增加，漿料的粘度增大；粉體的含量增加，粒子的分散效果也下降，漿料粘度也上升；粉體種類的不同對漿料的粘度影響很大，同時也較大程度的影響了粒子的分散性。
  17. Fluoropolymer - based coatings are usually based on a dispersion of finely - divided resin particles in dispersants and diluents

    含氟樹脂塗料是在分散劑和稀釋液中很好的分散樹脂粒子所形成的塗料。
  18. In this work, we made an attempt to prepare ha particles directly in organic environment and dispersed the particles in it, in contrast of the traditional way mentioned above. ha ultrafine particles are prepared in the emulsion of chloroform and water with lecithin as the emulsifier, and the effect of lecithin on the dispersion of ha particles in chloroform has been explored

    在進行了多種方法的嘗試后，本文認為，直接在有機介質中進行ha合成的反應，是極為困難的；採用介質替換的方法，使水中制備的ha ，不經乾燥，分散在氯仿中，是一種基本可行的方法，然而分散效果還是欠佳，並且容易在後來的復合材料中形成大量空洞。
  19. An experimental research on the dispersion of particles in mixing layer

    混合層中粒子擴散的實驗研究
  20. Therefore improving the dispersion properties of powders and the surface modification of particles are very important

    因此解決粉體材料的分散性同時進行顆粒的表面改性就變得十分重要。
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