超聲波分散 的英文怎麼說

中文拼音 [chāoshēngbōfēnsǎn]
超聲波分散 英文
ultrasonic dispersion
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 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. A two - dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks : parallel to the surface, 450 oblique angle to the surface, and quarter - circle

    摘要建立了無限長板的具有吸收邊界的二維平面應變有限元模型，在研究了脈沖超聲波在無限長板中傳播的基礎上，對板中平行於表面的裂紋、與表面成45的斜裂紋和四分之一圓周弧形裂紋三種情況的脈沖超聲波散射進行了重點研究。
  2. The results of performance testing showed that the additive of nano - powders can evidently enhance the latex coatings " weathering resistance, scratch resistance, water resistance and alkaline resistance, and do not reduce other performances ; polybasic nano - composite powders have more efficient than single nano - powder ; the dispersing method have biggish effect on performances. observing the stability of nano - additive of exterior latex coating showed there was no viscidity rising, no delaminatiom sedimentation in two months. tryout by plant showed that nano - weatherability additive can obviously enhance the weathering resistance of latex coating and water resistance, and no reducing other capabilities

    對其性能研究的結果表明，納米粉體材料的引入，可以明顯提高乳膠漆的耐候性、耐洗刷性和耐水耐堿性能，對其它性能無不良影響；納米多元復合粉體比單一粉體的改性效果明顯；納米粉體的添加工藝對改性乳膠漆性能有較大的影響，採用同普通填料一致的添加方式制備的試樣與採用超聲波預分散后在配漆階段加入制備的試樣相比，後者在穩定性、耐候性等方面的性能都有所提高。
  3. In order to show the scattering and complex mode - conversion clearly, the total field is decomposed into longitudinal and transverse parts and the scattered field is obtained by subtracting incident wave from the total field

    通過對縱橫波的分離和在全波場中對散射波的分離，清晰地顯示了裂紋對脈沖超聲波的散射和復雜的模式轉換。
  4. The ultrasonic can also afford the energy that the electroless plating need so that the coating speed is rapider than the normal low - temperature electroless plating, then reduce the cost. the ultrasonic has great advantage in dispersion compared with the normal mechanical mixing

    同時相比較傳統的機械攪拌分散工藝，超聲波分散具有明顯的優勢，可以大大提高顆粒的分散性，使復合粉末中各組成更為均勻。
  5. The omt after its suspension treated with ultrasonic wave was inserted with poly ( styrene - butyl acrylate ) emulsion. xrd test found the layers of omt particles were dispersed partly in the composite ; extraction experiment of nano - omt / pba - st composite indicated a great amount of macromolecule has inserted into the interlayer of omt. dta analysis showed the decompose temperature of composite has improved by 73 at 4 % omt

    將omt的水懸浮液經超聲波處理，與苯丙乳液復合， omt p （ ba - st ）復合物的萃取和xrd試驗證明乳液的大分子已經大量嵌入omt層間，使大部分omt以納米級均勻分散於苯丙乳液之中； dta分析結果說明添加4 omt苯丙復合材料的分解溫度升高了73 。
  6. According to the high dispersedness and low precision of measurements when using the traditional time difference method in small diameter and low flow rates conditon, this paper brings forward a new method based on high - speed data acquisition technique. the time difference comes out accurately with high resolving ability of time by using the method and the signal processing algorithms. the developed ultrasonic detection system is composed of two ultrasonic detectors, a transmitting and receiving ultrasonic unit, a high - speed data acquisition unit and a computer

    本文針對傳統的時差法在小管徑、低流速測量時，具有測時結果分散性大、測量精度受計數頻率的影響大等不足，創造性地把高速數據採集技術應用在超聲波流量、壓力測量上，用信號處理演算法求時差，使時差成為一個統計量，有效地克服了超聲波傳統時差法測量精度差、不能測量小管徑、低流速流體流量的缺點，提高了時差測量的解析度和精度。
  7. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵聲表面波機理的基礎上，求出了線光源激勵的超聲振動的位移表達式，發現線光源激勵的近場區表面波具有波形好，信噪比高，指向性好，幅度強等特點。通過理論推導，得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比，並與入射角和散射角有關；適當減小cfpi的帶寬，增加腔長，增大鏡面反射率，或者減小檢測入射角都可以提高系統的信噪比。
  8. The objective of the paper is to get nano sisn ^ co composite powder of high quality by electroless plating at normal temperature. the rules were researched that the composition of electroless plating solution and reaction condition had an influence on the reaction of electroless plating of nano - si3n4 with ultrasonic wave. the best composition of electroless plating solution was obtained

    本文以常溫化學鍍法制備高質量的納米氮化硅?鈷磷復合粉末為目標，研究鍍液組分及其工藝參數對納米氮化硅超聲波化學鍍鈷的影響規律，得到了納米氮化硅超聲波化學鍍的優化配方，制得了鍍層均勻，分散性好的納米復合粉末。
  9. The graphite dispersion was made in water with various surfactants and dispersants by ultrasonic dispersion

    本論文主要採用超聲波分散的方式和分散劑制備了穩定的石墨水分散懸浮體系。
  10. Secondly, the surface - treating method of the carbon nano tubes was investigated, which was first time to process the surface of carbon nano tubes using the techniques such as purification, alkaline treatment, modification of coupling agent and ultrasonic dispersion

    研究了碳納米管的新型表面處理方法，首次將碳納米管純化、堿處理、偶聯劑表面改性、超聲波分散聯用於碳納米管處理過程。
  11. The stability of nano - alumina aqueous dispersion is tokened by spectrophotometer and particle size distribution instrument. it is proved that when condition is dispersant pmaa = 0. 4 %, ph = 9, nano - - alumina content = 4 % ( wt % ), ultrasonic for twenty minites, excellent stable nano - alumina aqueous dispersion can be acquired. nano particle average size is 205nm

    用分光光度計和粒度分析儀表徵了納米粒子水分散液的穩定性，結果表明納米相al2o3濃度為4 % ，分散劑為陰離子聚電解質，用量0 . 4 % ， ph = 9 ，採用超聲波分散20分鐘得到最好的分散效果，納米顆粒的平均粒徑為205nm 。
  12. In this work, layered lini1 - xalxo2 ( 0 < x 1 / 2 ) solid solution materials were successfully synthesized by current co - precipitation method in the air, and their preparation and properties were deeply and systematically explored. influences of different factors on the structure and properities of samples were studied, including li resources, different performs, li / m ( oh ) 2 molar ratio, calcining heat condition, the best synthesis technics were concluded : sintered for 16h at 700 from li source ( lithium nitrate ) : m ( oh ) 2 = 1. 05 : 1, ultrasonic vibration for dispersing and catalysing are best. lini0. 8al0. 2o2 exhibited a discharge capacity of 130. 7 mah ? g - 1 in the voltage range of 2. 8 ~ 4. 40v and at a specific current of 0. 2 c. a new co - precipitation method was proposed, it included ultrasonic for dispersing and catalysing, by dropping lioh to the aqueous solution of metal nitrates, hydroxides of metals were precipitated and the resulting solution was evaporated as received

    採用傳統共沉澱工藝在空氣氣氛中成功地合成出了二元lini1 - xalxo2 （ 0 < x 1 / 2 ）層狀固溶體系列，綜合考察了不同鋰源、預處理方式、鋰的配比量、焙燒溫度等條件對合成產物的結構和性能的影響，確定出了最佳合成工藝:以硝酸鋰為鋰源，超聲波作為分散動力源，鋰源與鎳鋁金屬鹽摩爾比為1 . 05 : 1 ， 700下焙燒16h的lini0 . 8al0 . 2o2樣品電化學性能最佳，在2 . 8 ~ 4 . 40v之間， 0 . 2c的倍率放電可逆容量達130 . 7mah ? g - 1 。
  13. Finally, some important conclusions were drawn, that is, using distributed pzt transducers, ultrasonic guided waves are generated and received in a pipe. usually, there are many different modes of guided wave propagating in the pipe and these modes are generally dispersive, the specific exciting signal of a harming windowed toneburst with a central frequency of 70khz for decreasing the effect of dispersion was selected. and guided wave are generated using 16 distributed pzt transducers in a circumferential direction for suppressing flexural modes

    首先，對當前本課題研究領域的進展作出綜述，並簡要介紹與超聲導波技術相關的理論基礎；其次，建立了一套有效的實驗裝置，在此實驗裝置基礎上，重點研究了採用分散式pzt傳感器在管中激勵和接收特定模態超聲導波的方法：根據在管狀波導中傳播的超聲波具有頻散現象及多模態特徵，選擇具有單一頻率的特定信號激勵超聲導波，使其頻散最小；同時採用分散式傳感器抑制不同模態的波型。
  14. In addition, the effective combination technologies of ultrasonic, microwave, alternating current deposition, supercritical fluid drying with traditional liquid methods is the most promising one to prepare high purity, small size and well - proportioned dispersing nano - particles

    而超聲技術、微波輻射技術、交流電沉積技術、超臨界流體乾燥技術、非水溶劑水熱技術等新技術與傳統液相法的有機結合，是制備高純度、小粒徑、均勻分散的金屬氧化物納米粉體的最有前途的方法。
  15. Using teos and ti ( obu ) 4, etc. as modifying material, wood samples were nano modified by means of microwave technology, supersonic dispersing method and pressure penetrating method etc

    摘要採用納米合成技術，以正矽酸乙酯、鈦酸丁酯等作為改性木材的前驅體，結合微波擴孔技術、超聲分散技術、壓力浸漬等方法，對木材進行了改性。
  16. Feature : super sonec independent spring with pressurized germ - proof cotton material. ensures quality sleep. space plant cotton : dissipates heat, elastic, environmental friendly and moisture and germ - proof

    特點：超聲波獨立簧，並經防菌不織布壓裝而成，互不干擾，充分保證睡眠質量。進口太空乳膠綿：散熱透氣、回彈強、環保、防潮、防菌。
  17. Through the experiments of powder suspending liquid centrifugal stability 、 temperature 、 quality and absorbency, this paper researched the effect of ultrasound on dispersing capability of nano - tio2, and got the optimum ultrasound dispersing condition of nano - tio2 suspending liquid in definite extension

    摘要通過對粉體懸浮液的離心穩定性、溫度和質量變化、吸光度的變化進行實驗，本文研究了超聲波對納米二氧化鈦分散性能的影響，並在一定的實驗范圍內，得出納米二氧化鈦粉體懸浮液的最佳超聲分散條件。
  18. Mostly tasks as follows : it was realized that electroless cobalt plating of nano - sis ^ at normal temperature with ultrasonic wave. the problem of dispersion of the nano - powder was solved

    完成的主要工作如下：通過在納米氮化硅的活化及化學鍍反應過程中施加超聲波，實現納米氮化硅的常溫化學鍍，解決納米粉末分散性的問題。
  19. Therefore, wool dyeing at low temperature in short time is feasible from the view of technology and economics ; it has a bright feature in dyeing industry

    結果表明，超聲波染色不僅可以提高染料的平衡上染百分率，節約能源和降低染色成本，而且還可以加快上染速率，增大擴散系數，降低染料上染的活化能。
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