粒子最大密度 的英文怎麼說

中文拼音 [lìzizuìdàmìdù]
粒子最大密度 英文
limited particle density
  • 粒 : 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）
  • 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...
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 粒子 : grain; granule
  1. Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest

    文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。
  2. Using diethanolamine as aminating agent and glacial acetic acid as neutralizing agent, aminated epoxy acrylic cationic resin was prepared. the effect of technology of aminated epoxy acrylic resin on properties of eletrodeposition was studied by conductivity meter and electrophoresis apparatus. it was shown that, conductivity firstly decreased, and then increased with aminating temperature increase. in contrast with putting polyacrylic resin into thin acetic acid solution, the more compact film could be achieved by neutralizing polyacylic resin with glacial acetic acid and then add it into water. when neutralizing temperature was enhanced, the speed of electrodepsidon was found to increase, and the film was also more compact. increasing the dn leads to enhanced conductivity and smaller particle size. when dn equaled to 80, the smoothest film could be achieved

    以二乙醇胺為胺化劑、冰醋酸為中和劑，合成了胺化環氧丙烯酸陽離子樹脂.採用電泳儀和電導率儀，研究了胺化環氧丙烯酸樹脂合成工藝對陰極電泳塗料電沉積性的影響.結果表明，隨著胺化溫度的增加，電泳液電導率先下降後上升.將冰醋酸加入樹脂中中和，後用水稀釋，比樹脂在醋酸稀溶液中中和，電沉積性能更好.電沉積速率隨著中和溫度的上升而增加，電沉積膜緻密性相應增加.中和度（ dn ）愈高，電泳液電導率愈大，粒徑越小，而塗膜外觀在中和度為80時達到最佳
  3. Analysis of the sequence variation of cytochrome b gene indicated that there is no evidence of insertions or deletions, i. e., they are all of identical length of 1143 bp in all the sequences of cytochrome b gene. further, the sequences can be fully translated into amino acid using chicken mitochondrial codon without nonsense mutations or intervening stop codons. the 1143 bp cytochrome b alignment contained 416 variable sites, of which 306 were parsimony informative sites with the strongest variable in third codon positions and less variable in first and second codon positions

    細胞色素b基因序列變異分析表明： 1 ）雁形目鳥類細胞色素b基因全序列長度一致，無插入和缺失：對照雞線粒體密碼子系統全序列能全部翻譯成氨基酸序列，無無義突變，全序列內部無終止密碼子； 2 ）序列比對后1143加，含416個核著酸變異位點， 306個簡約信息位點，其中處於密碼子第三位的變異最大，第一位和第二位堿基的變異相對較小。
  4. It was show in this thesis that the po activity existed histochemically in haemo - cyte and its peripheral zone. most po were electron - dense and homogenous. prophenoloxidase is found in both plasma and haemocytes. propenoloxidase is most abundant in large granule haemocytes, a small abount is present in some small granule haemocytes and hyaline cells, or absent

    Po大部分均質且電子密度很高。在細胞外有異物處的po密度最大。其中大顆粒細胞周圍的po陽性產物最多，小顆粒細胞和透明細胞則很少或沒有。
  5. Numerical simulation results indicate that, for low temperature dust particles, dust particles mainly exist in the area near the column center and their charge - number can be considered as a constant, while in the area where there are no dust particles, ion and electrons are in ambipolar diffusion ; for high temperature dust particles, both the distribution regions of dust particle and high ion density are expanded and dust charge - number is increasing with the distance from the center

    計算結果表明：當塵埃粒子的溫度較低時，塵埃粒子主要集中在圓柱形放電器的中心很小的區域，塵埃粒子攜帶的電荷幾乎是一個常數，受塵埃粒子空間電荷的影響，離子在該區域的密度最高。在遠離中心區域，離子和電子呈現雙及擴散特點；當塵埃粒子的溫度較高時，塵埃粒子分佈的區域和高離子密度區域擴大，塵埃粒子離放電器中心越遠，攜帶的負電荷越多。
  6. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  7. In high energy neutrino - emulsion collisions, the normalized distribution of two - particle relative pseudorapidity and the correlation between the mean maximum number density of shower particles and multiplicity are investigated

    摘要論述了高能中微子與核乳膠碰撞中，歸一化的兩粒子相對鷹快度分佈，和平均最大簇射粒子數密度與多重數的關聯。
  8. A monte carlo algorithm was presented to model the relation between the scattering phenomenon, depolarization changes and sea water depth, it is discovered that the radius of scattering point and the degree of depolarization increase with increasing of the sea water depth. at last, a optical engineering software ( lighttools ) is introduced to simulate optical scattering in the deep sea water, and studys the corelation between scattering and relative refractive index, particle density and particle size in the sea water. the experiment results show that the intensity of scattering will increase evidently with the increasing of particle size, particle density and relative refractive index. the methods and results in the article provide the basic theory and experiment validation for improving performance of communication, detection and imaging under sea water

    本文以球形粒子的mie散射理論、 stokes矢量法以及mueller矩陣來研究海水的散射特性和散射中的退偏振度變化;通過montecarlo方法模擬藍綠激光在海水傳輸過程中的散射現象以及散射中的退偏度變化與海水深度的關系，發現隨著海水深度的增加，散射后的光斑半徑、退偏振度將逐漸增大。最後通過光學工程軟體（ lighttools ）對海水中的散射進行模擬實驗，研究散射與海水中粒子密度、粒子大小和相對折射率的關系。實驗結果表明，隨著粒子半徑、粒子密度和相對折射率的增加，散射的強度將顯著增加。
  9. Powders are scattered in dispersant by the high - energy dispersing technology ; viscidity of dispersant is great, density of dispersant close particle density. polyvinyl alcohol is choosed as dispersant, and concentration of polyvinyl alcohol ranges from 3wt % to 7wt % ; the concentration of particle is 0. 4g / cm3. 4 the consolidation technology includes dry, the rate of heat - up and sintered

    分散採用高能量的分散技術；分散劑選擇粘度大，密度與懸浮粒子密度相近的分散劑；對于鈦粉、不銹鋼粉，其分散劑選擇聚乙烯醇，聚乙烯醇的濃度范圍在3wt ? 7wt ；在刷塗工藝條件下懸浮液的最佳濃度為0 . 4g / cm ~ 3 ，懸浮液濃度對多孔金屬膜的透氣性影響不大。
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