顆粒粒度研究 的英文怎麼說

中文拼音 [yánjiū]
顆粒粒度研究 英文
particle size study
  • : Ⅰ名 (小圓珠形或小碎塊形物) small particles; grain; granule; pellet Ⅱ量詞(用於粒狀物)
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : 研同 「硯」
  • : Ⅰ動詞(仔細推求; 追查) study carefully; go into; investigate Ⅱ副詞[書面語] (到底; 究竟) actually; really; after all
  • 研究 : 1. (探求) study; research 2. (考慮或商討) consider; discuss; deliberate
  1. In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed

    本文用邊界元方法了一類典型心腦動脈分支血管中血液流動的流體動力特性,計算了分支血管血液流動的速矢量分佈,同時計算了分支附近有多個狀繞流物時血液的流場分佈,及物所受壓力狀況,給出了物的運動趨勢,分析了引起粥樣斑塊病變、血瘤、血栓的可能原因
  2. It is discovered that existence of small amount of n - butyl alcohol in mesoporous zeolite synthesis system can not only modify ordered degree of formation of mesoporous zeolite, which improves hydrothermal stability of it, but also help to attain much smaller, nearly nanometer, grain of mesoporous zeolite

    發現,少量正丁醇的存在能改善介孔分子篩形成過程的有序,並使其水熱穩定性得到提高,同時合成產物的更小,趨近納米
  3. Secretic granules in b cell are fairly big, cores are various. there is fairly big gap between the core and the limiting membrane ; the center of secretic granules in a cell exist compact core and there is no gap between the core and the limiting membrane ; secretic granules in d cell are too much, electron density of granules is lower, and there is no gap between the core and the limiting membrane, what ' s more, fairly big chondriosome can be seen in the cell

    B細胞的分泌王曉麗尼羅羅非魚胰島顯微和亞顯微結構的13較大,芯的形態多樣,電子密差異大,芯與界膜之間常有較大的空隙; a細胞分泌形態不規則,芯的大小不等,界膜與芯之間無空隙; d細胞分泌較多,芯的電子密較低,界膜與芯之間無空隙,此外,胞質內可見較大的線體。
  4. The influence of inflow velocity, the baffle body height and the clapboard position on the flow velocity, flow equilibrium between the two sides of the clapboard, particle distribution, rich / lean concentration ratio and flow resistance characteristic are studied numerically

    文章了來流速,撞擊塊高、隔板位置等因素對氣相速場、隔板兩側配風均勻性、、濃淡分離比和燃燒器內阻力特性的影響。
  5. Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l. cv hetao flesh, which was cloned into plasmid vector pmd - 18 - t. the clon of antisense orientation were selected, and it was inserted downstream of camv35s promoter and enhancer " " of tmv into the plant expression vector pbinyxw, antisence expression vector pbinya was constructed. at the base that pollination and fertilization of cucumis melo l. cv hetao was studied, using pollen tube pathway transformate cucumis melo l. cv hetao, 76 fruit had been obtained, moreover, hardness and content of sugar were analysed

    本實驗以河套蜜瓜果肉基因組dna為模板,用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增,得到128bp的擴增產物。將得到的擴增產物克隆到質載體pmd - 18 - t上,篩選反向克隆,然後將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子「 」的下游,構建成反義表達載體pbinya 。並在對河套蜜瓜授粉受精生物學的基礎上,通過花粉管通道法轉化河套蜜瓜,共獲76瓜,並進行了硬和含糖量的分析。
  6. That is the premise of the bg / ha electrophoresis codeposition. the laws of the electrophoresis deposition of the bg and ha partic les were found by the study on each of their deposition under the different conditions. the electrophoresis codeposition of the bg and ha particles had been studied and the bg / ha graded coating, which is compact in the bottom layer and porous near the surface layer, had been prepared on the surface of the dental implant after the low temperature heat treatment ( about 740 ) and fast firing ( 50 - 80 / min, heat preservation time was 5 - 8min. )

    以bg微粉和ha微粉作為塗層原料,通過bg和ha微粉在非水介質中的分散情況和帶電特性,選擇冰醋酸為介質,使分散在其中的bg和ha表面均帶上正電荷,為電泳共沉積提供前提條件;通過對不同條件下bg 、 ha各自電泳沉積的,探索出了兩者電泳沉積的規律;通過對bg和ha在冰醋酸中電泳共沉積以及后續低溫( 740左右)快燒( 50 ? 80 min ,保溫5 ? 8min )熱處理的,在鈦合金牙根種植體基體上成功制備出了底層緻密而表層多孔的bg ha梯塗層。
  7. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後,本文還對絮凝動力學和絮體結構進行了,在前人的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合試驗條件的假設,建立了碰撞頻率表達式,應用了數量平衡方程,從而建立了絮凝過程的動力學生長模型,模型計算結果與試驗數據對比表明,二者趨勢一致,在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程;對絮體結構的中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮、絮團和絮網三個不同的生長階段,通過假設結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維數基本與試驗中的實際絮體相符,在一定程上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  8. Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )

    以武裝直升飛機防護裝甲材料為對象,採用真空熱壓粉末冶金燒結工藝制備了含sic體積分數分別為5 、 15和25的sic增強鋁基復合材料,結合其力學性能、掃描電鏡和界面微區能譜分析結果,分析了sic _ p al復合材料的真空燒結過程中的界面現象,以及材料增強和斷裂機理,並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態(應變率為3 . 3 10 ~ ( - 3 ) s ~ ( - 1 ) 5 . 2 10 ~ 3s ~ ( - 1 ) )的壓縮破壞響應進行了,分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下,材料的變形和微觀損傷機理,以及利用高速沖擊空氣炮測定了改復合材料制備剃復合板的穿透性能。
  9. Firstly, the surface characteristic of polystyrene particle is changed from water detesting to water intimity by using special techniques and admixtures so mat the compound quality with inorganic materials is insured. secondly, the contradiction between the weight and strength is solved through optimizing the particle size and using composite fiber and the best heat conductivity is achieved under the condition that the necessary strength is met. in the research process, the author solved the problem of fiber dispersing in insulating materials so that the contraction of the material is controlled

    課題中,首先採用特殊的改性工藝及外加劑實現對聚苯乙烯表面的成功改性,使其表面由憎水轉化為完全親水,確保與無機材料的復合質量;其次,通過採用優化骨料級配及使用復合纖維等措施解決了保溫材料的輕質與強的矛盾,使保溫材料在滿足必要的強的前提下,導熱系數降至最小;並且,課題中成功解決了纖維在保溫材料中均勻分散的問題,達到了抑制保溫材料收縮的目的;最後,通過採用復合外加劑、合適的膠凝材料及合理的配比等措施確保該保溫材料具有良好的和易性,滿足施工的要求。
  10. Glutathione redox system as the important parts of defense systems was studied after exposure to sulfur dioxide at different concentrations. dna damage caused by so2 and lead acetate were also studied. protective roles of seabuckthorn seed oil on oxidative damage caused by so2 in liver and lung of mice were also investigated

    本文在整體動物水平上了不同濃二氧化硫吸入后小鼠組織谷胱甘肽氧化還原系統( glutathioneredoxsystem )的動態變化規律;二氧化硫所致氧化損傷的防護作用;二氧化硫和大氣物中親氣性重金屬元素鉛對dna的聯合損傷作用。
  11. Dna damages caused by so2 and lead acetate were studied with the single cell microgel electrophoresis technique ( or comet assay ) in order to confirm the damaging degree of lead ( as an important component of atmosphere particle matter ) on dna from male mice exposed to so2. the migrating distances of dna of brain, lung, spleen and kidney cells of mice increased significantly, compared to the control group under conditions of single and combined poisoning of so2 ( 42mg / m3 ) and lead acetate ( 0. 2 % ), and lead could strengthen dna damage degree by so2 in nuclear dna of brain, kidney, spleen cells. damaging degree of so2 on nuclear dna of lung cell of mice was more severe than that of lead

    為了明確大氣物中的重要組分? ?鉛在二氧化硫所致dna損傷中的作用程,利用單細胞凝膠電泳技術( singlecellgelelectrophoresis , scge ,或稱彗星實驗, cometassay )了鉛與二氧化硫的聯合污染,結果表明在42mg m ~ 3so _ 2和0 . 2醋酸摘要一abstract鉛單獨及聯合染毒條件下,小鼠腦、肺、腎、脾細胞dna遷移距離均比對照顯著增加;鉛加劇了50 :對腦、腎、脾細胞核dna的損傷程; 50 :對肺細胞核dna的損傷程要比鉛的損傷大,小鼠肺細胞核dna遷移距離在50 :和醋酸鉛聯合作用組與醋酸鉛單獨作用組間有極顯著性差異( p < 0 . 01 ) ,而與502單獨作用組間沒有顯著性差異。
  12. The hydraulic gradients of settling slurry flow transported in three kinds of moving states, i. e. suspension, saltation, or partially suspension were investigated, based on analyzing the changes of solid particles and water in momentum, velocity and their mass related to momentum exchanging over the acceleration period of the solid particles

    從固體加速期間清水與固體的速變化、動量傳遞、相關質量等基本問題分析入手,了沉降性漿體在水平管道內流動時其固體在3種流動狀態下的水力坡,提出了沉降性漿體在水平管道內流動的機理模型,進而用該模型對一些輸送條件下的沉降性漿體的水力坡進行了計算。
  13. As showed by the results, mpf is advantageous for the stable formation or growth of pre - sintered glass beads, and it can partly guarantee the desired " results of sintering

    結果表明,利用復配造孔劑有利於的穩定生成和成長,在一定程上保證燒結過程達到理想狀態。
  14. It is found that the electric, field improves elongations in 2090 and 2090 + ce alloys markedly, especially in 2090 alloy, but has little effect on strengths. at the same time, the electric field lessenes percentages of intergranular delamination and increases transgranular fracture and microscopic plastic deformation. besides, the electric field makes both average particle size and its distributing range of 8 " phase smaller, and reduces the half width of pfz in aged alloys

    表明:固溶電場可顯著提高2090合金及2090 + ce合金的延伸率,尤其是對2090合金,但對強則無明顯的影響;同時,固溶電場減少合金的沿晶分層斷裂比例,並增加穿晶斷裂及微區塑性變形;固溶電場還使合金時效后相的平均尺寸減小、尺寸分佈范圍減小,並使pfz的寬減小。
  15. The age hardening characteristic of as - cast cu20ni20mn and cu20ni35mn alloys and the interface characteristic between the alloy and cast tungsten carbide were studied, and on the basis of this study, composites of cu - ni - mn alloy reinforced with different volume fraction ( 0 - 45vol. % ) and different size ( 42 - 362 m ) of cast tungsten carbide particles were made by vacuum hot - pressing liquid sintering technology. pin on disk two body abrasion tests have been performed with different size of sic abrasive under different loads

    本文了鑄態cu20ni20mn和cu20ni35mn合金的時效硬化特性及其與鑄造碳化鎢的界面特性,並在此基礎上以不同尺寸( 42 362 m )的鑄造碳化鎢為增強體,採用真空熱壓液相燒結技術制備了不同含量( 0 45vol . )的鑄造碳化鎢增強cu - ni - mn合金基復合材料;以不同的sic為磨料,在不同載荷條件下利用銷?盤磨損試驗機測試了復合材料的二體磨料磨損性能。
  16. Effects of different calcium concentration on ca2 + in ca2 * - sequester ing organelles of photoreceptor cell in penaeus monodon fabriciu by the combined oxalate - pyroantimonate technique, we observed the subcellular distribution of calcium in the photoreceptor cells of penaeus monodon fabricius, by changing the extracellular calcium concentration. the result showed that, in vitro, in presence of 50mmol / l, the quantity of calcium antimonate deposit in the multivesicular bodies, pigment and lamellar body were more than that of photoreceptor incubated in lower calcium solution, which contained 50mmol / l egta. in higher calcium solution, we ecu id not f i nd the depos i t in the mitochondr ia, but in lower calcium solution, there was a little deposit in the mitochondria

    學位論義小同ca卜濃對斑節對蝦光感受器的形響3 .外界不同鈣離子濃對斑節對蝦光感受器細胞內所儲存的鈣離子的影響應用草酸一焦銻酸鹽結合的沉澱技術斑節對蝦光感受器細胞在不同ca之『濃條件下胞內儲存的ca2 +變化,其電鏡觀察表明:在高鈣溶液培育后,細胞內的多囊體、色素、板膜體中都存在大量的焦銻酸鈣沉澱的黑色,線體中未發現沉澱;在生理溶液培育后,線體中出現沉澱,而其他caz +儲存器中焦銻酸鈣沉澱的黑色大量減少。
  17. Study on the distributor law of entrainment particles in the dilute phase of turbulent fluidized beds of fcc regenerator

    湍流流化床稀相區夾帶分佈規律的
  18. The experimental study to the velocity profiles of food particle in vertical pipe flow

    垂直管流中食品分佈的實驗
  19. The reinforcing effect has been researched, with wc of 40 ~ 60 mesh dimension and 10 ~ 52 wt % volume fraction. the matrices were grey cast iron and low chromium cast iron

    復合材料中碳化鎢為40 60目,體積分數范圍為10 52 ,基體材質分別選用了灰口鑄鐵和低鉻鑄鐵,了它們的復合效果。
  20. This article mainly emphasize on the classification of coarse grained soil from the viewpoint of engineering application ( content of coarse grains ), vibrating method is introduced in the shaping. meanwhile, research is made to the water stability and shear strength. through research, following conclusions are obtained : coarse grained gradation is the main factors to determine its shear strength, when the coarse grains content is over 70 % or around, the maximum shear strength appears : the grains itself have a bigger effect on the shear strength

    以往對粗土的方法多採用擊實法,很少有人其抗剪強特性,本文主要從工程應用的角(粗含量)對粗土進行工程分類,成型方法採用振動法,同時對水穩定性、抗剪強特性進行,通過得出以下結論:組成級配特性是決定其抗剪強的主要因素,當粗含量在70左右時,抗剪強最大;本身的特性對抗剪強影響較大,越堅硬、大小相差越大、越不均勻、形狀越呈稜角狀、填築密越大,抗剪強就越高;含水量對抗剪強的影響很小,可以忽略不計。
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