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paa PAA =Pan American World Airw...

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尸)上的任一強p同余,可以決定s尸)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

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尸)上的任一強p同余,可以決定s尸)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

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尸)上的任一強p同余,可以決定s尸)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

pab

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。

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 基膜選用聚醚砜超濾膜,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 。

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,并將聚丙烯酸和硝酸銀置于“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。

The morphology of self - assembled monolayers of mercapto methoxy poly ethylene glycol mpeg and its complex film with poly acrylic acid were investigated with atomic force microscopy . the roughness of the complex film was affected by the concentration and the ionic strength of paa solution , and some rougher complex film were formed in a solution with high concentration of paa and stronger ionic strength 利用afm技術研究了聚丙烯酸在末端硫醇化的聚乙二醇分子自組裝膜表面形成復合膜的表面形態及影響因素,發現溶液濃度和離子強度對復合膜的表面形態及粗糙度有較大影響。

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。

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。

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,固定于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于l l結合的八面體結構,這樣也利于本吸附劑對ldl的吸附。

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,采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。

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 并利用紅外( ft - ir ) 、 x ?射線衍射( xrd )對產品進行了表征,結果證明此材料為嵌入型插層復合物。

Thus , to improve the specific of lithium ion batteries , main effort should be directed toward the synthesis of new positive electrode materials , i . e . various lithiated oxides that could reversibly intercalate one li atom per 3d - metal atom at about 4v versus li O 。由于電壓高、價格便宜和對環境友好而成為最有希望的備選材料之一。首次采用了聚丙烯酸paa為鰲合劑,運用溶膠凝膠法,合成了limn 。

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尸)上的任一強p同余,可以決定s尸)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

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 。

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。

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。

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。

Properties of electroresponsive pva paa hydrogels under an electric field stimulus 水凝膠纖維的電刺激響應性能