paa 中文意思是什麼

paa 解釋
PAA =Pan American World Airways 〈美國〉泛美航空公司(1991年合併于 Delta 航空公司)。

  1. P ) is called an e - inversive p - semigroup if it satisfies the following main result 2 let be a normal partition of p. then x s ( p ) : for any a ? / then there exist and b " ? u " ( 6 ) such that a ' paa. b ' pab c p3 and apaa "

    接著用「核跡」方法研究s仔)上的強p同余,即證明s屍)上的任一強p同余,可以決定s屍)的一個強p同余對,反之s的任一強p同余對,可以決定s ( p )上的一個強p同余
  2. Poly ( methacrylic acid ) ( maa ) and poly ( acrylic acid ) ( aa ) microgels have been prepared as templates by employing inverse emulsion polymerization techniques. four types of spherical organic - inorganic nano - composites have been prepared by introduction of precipitation agent into the pmaa / paa microgels containing appropriate rate metal ions

    本課題開展了兩個模板體系的研究,即分別以丙烯酸( aa )和甲基丙烯酸( maa )為聚合單體,利用反相乳液聚合方法合成了幾種包埋有不同金屬離子的高分子微凝膠。
  3. Study on paa and pvp as drug delivery carriers

    聚乙烯吡咯烷酮對萘普生片釋放度的影響
  4. Properties of electroresponsive pva paa hydrogels under an electric field stimulus

    水凝膠纖維的電刺激響應性能
  5. By static anti - scaling method, through scale inhibition capacity test of caco3, the result show that paa has good inhibitive effect on caco3

    通過聚丙烯酸( paa )對碳酸鈣垢的靜態阻垢法阻垢實驗,結果表明:聚丙烯酸有良好的阻碳酸鈣垢效果。
  6. These precursors polymerize to form polyamic acid ( paa ). the paa reacts with metal film such as copper. thus its character become worse and circuit resistance increases

    電子科技大學博士學位論文聚酚亞胺( pi )是薄膜多層布線的重要介質材料,它是由兩種單體在熱處理后聚合而成。
  7. Conductive glass electrodes were modified with polyethylenimine ( pee ) and polyacrylicacid ( paa ) via electrostatic interaction ; and the electrochemical luminescence behavior of luminol on the modified electrodes was compared

    摘要通過靜電相互吸引作用對導電玻璃電極表面進行聚乙烯亞胺和聚丙烯酸分子層修飾;比較了修飾電極對中性介質中魯米諾電化學發光的影響。
  8. Having reacted with copper, paa becomes complex. the complex decomposes after heat treating and cause the increase in dielectric constant and reduction in dielectric breakdown strength. otherwise cu2o and cuo emerge from the complex, too

    N與cu反應后,形成絡合物,熱處理時自身降解,擊穿強度降低,介電常數提高; cz在熱處理后從絡合物離解出來形成cllo和cuzo 。
  9. Section one : preparation of polyacrylic acid / montmorillonite ( paa / mmt ) water absorbent hybrids by aqueous solution intercalated polymerization as montmorillonite is easily dispersed in water uniformly, the polyacrylic acid / montmorillonite ( paa / mmt ) was prepared by simple aqueous solution intercalated polymerization

    並利用紅外( ft - ir ) 、 x ?射線衍射( xrd )對產品進行了表徵,結果證明此材料為嵌入型插層復合物。
  10. The work of the paper mainly includes : ( 1 ) present a model for measuring the similarity between two hydrological time series. in this model, we adopt an intuitive dimensionality reduction technique for hydrological time series which is called piecewise average approximation ( paa )

    主要工作包括: ( 1 )提出了適合水文時間序列數據特點的相似性模型,採用簡單直觀的等時間間隔序列分段平均值技術( paa )作為水文時間序列降維方法。
  11. The results indicated that montmorillonite was intercalated by polyacrylic acid molecular. section two : preparation of polyacrylic acid / acrylamide / montmorillonite ( paa / am / mmt ) water absorbent hybrid by aqueous solution intercalated polymerization high water absorbent polyacrylate copolymer was prepared by aqueous solution intercalated copolymerization. in this reaction, the monomers were the partially neutralized acrylic acid ( aa ) and acryl amide ( am ) ; the cross - linking agent was diacryl ethylene ( egda )

    第二節溶液插層共聚制備聚丙烯酸鹽/丙烯酰胺/膨潤土雜化吸水材料及其性能研究首次利用溶液插層共聚制備了二丙烯酰基乙二醇酯( egda )交聯的聚丙烯酸鹽/丙烯酰胺/膨潤土( paa / am / mmt )雜化吸水材料。
  12. The support membrane is polyethersulfone ultrafiltration membrane, the concentration of polyacrylic acid was selected at 0. 05wt %, a suitable paa / pei ratio was 1 / 5 - 1 / 10 with a number of 4 bilayers. the molecular weight of paa was 4 000 000. the corresponding filtration time of the first paa layer range was 10 minutes while the reaction time was 20 minutes

    基膜選用聚醚碸超濾膜,聚丙烯酸濃度為0 . 05wt % ,聚丙烯酸與聚乙烯亞胺濃度配比為1 / 5 - 1 / 10 ,復合四層, paa分子量4000000 ,首層過濾時間10min ,過濾反應時間20min 。
  13. Tem reveals that the complex possessed good dispersibility in the system and the status varied reversibility with the ph value and the size of the complex is within 20 ~ 40nm. the complex was characterized by ft - ir, uv - vis, fluoresence and electrical conductivity methods. paa - ag nanospheres were also synthesized by coordination of polyacrylic acid and silver ( i ) ion and queued in line in lr

    本論文還以低分子量的聚丙烯酸和硝酸銀為主要原料,通過控制體系的ph值合成響應環境ph值變化的聚丙烯酸銀納米微球和納米柱狀物,通過tem觀察尺寸達20 - 40nm ,用ir 、 uv - vis 、熒光、電導率法分析聚丙烯酸和銀的配位作用、所形成配合物的組成與結構,並將聚丙烯酸和硝酸銀置於「線性反應器」中進行配位聚合,合成出線性排列的paa - ag納米微球。
  14. Part : study on the intercalated copolymerization and properties of exfoliated polyacrylic acid / acryl amide / montmorillonite ( paa / am / mmt ) hybrid using cation exchange resin as cation source, the montmorillonite convert to sodium form by means of the cation exchange reaction of the montmorillonite and cation resin. the two - step intercalation method by using two different organic salts was sued in the modification of montmorillonie. its effect was much better in preparing polyacrylic acid / acrylamide / montmorillonite ( paa / am / mmt )

    第三章插層共聚制備剝離型聚丙烯酸/丙烯酰胺/膨潤土納米雜化材料及其熱性能研究利用732陽離子交換樹脂對膨潤土進行鈉化,二次插層對鈉化膨潤土進行處理,溶液共聚法制備了剝離型聚丙烯酸/丙烯酰胺/膨潤土( paa / am / mmt )納米雜化材料。
  15. So, the probability of adsorption of ldl to adsorbents increases in the presence of ca2 +. in addition, an octahedral coordination geometry that is beneficial to the adsorption for ldl may be formed around a calcium ion between neighboring sde ligands immobilized on paa

    另外,從空間構象來考慮,當向吸附體系中加入caz 」后,固定於載體表面或其孔洞內的多個相鄰配體及其間隔臂分子圍繞鈣離子可能形成一個有利於l l結合的八面體結構,這樣也利於本吸附劑對ldl的吸附。
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