聚體的結構 的英文怎麼說
中文拼音 [jùtǐdejiēgòu]
聚體的結構
英文
structure of polymers- 聚 : 動詞(聚集; 聚積) assemble; gather; get together
- 體 : 體構詞成分。
- 的 : 4次方是 The fourth power of 2 is direction
- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 構 : Ⅰ動詞1 (構造; 組合) construct; form; compose 2 (結成) fabricate; make up 3 (建造; 架屋) bui...
- 結構 : 1 (各組成部分的搭配形式) structure; composition; construction; formation; constitution; fabric;...
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Chiral quaternary ammonium salts were synthesized from cinchonine in cinchona alkaloids using chloromethylated polystyrene - polyethylene glycol, diethylene glycol, triethylene glycol and glycol as polymer - supported phase transfer catalysts, finsl products were characterized by ftir, elemental analysis, scanning electron microscopy, x - ray photoelectron spectroscopy ( xps )
摘要以金雞納生物堿中的辛可寧為原料,氯甲基化聚苯乙烯聚乙二醇、一縮二乙二醇、二縮三乙二醇、乙二醇等為載體合成了幾種聚合物負載的手性季銨鹽,並對它們的結構用紅外光譜、元素分析、掃描電鏡和x射線光電子能譜等測試手段進行了表徵。Abstract : the formation technologies, the structure and properties of tcs microporous man - made yarn - kind new polyester fibre which was spinned in tcs with some micrometallic - oxide have been studied. the results indicate that the rheological behaviour and spinnability of commixed polyester melt, and the structure and properties of the fibre, are relative to the spinning temperature, melt pressure, microporpus size for spinning, formation conditions, thermo - vascellum temperature, thermo - vascellum position and rolling speed, besides the viscosity of polyester cuts, coacervation particles, adding amount and size of micrometallic - oxide
研究表明, tcs微孔化共混聚酯熔體在成型加工中的流變行為和可紡性,及其纖維的結構性能除了與原料切片的特性粘度、凝聚粒子和共混聚酯中超細金屬氧化物微粒的添加量、粒徑等因素的影響有關外,還與紡絲溫度、紡絲熔體壓力、噴絲板微孔尺寸、冷卻成形條件、熱管溫度、熱管安裝位置以及卷繞速度等因素的影響密切有關。Study on granular structure in laterite vn soil has already been reported in different land use pattern but it is little about soil fertility in karst environment. the better the soil structure, the higher the content of water - stable soil aggregate so there is an osculation correlation between aggregate and structure of soil
不同利用模式下紅壤團粒結構的特徵研究己有報道,但關于巖溶環境中土壤變化的研究則很少。土壤團聚體與土壤的結構密切相關,團聚體含量高,則說明土壤結構好。The analysis of ir spectrum and melt flow index showed that the composite had a micro - crosslinking structure, and the analysis of dsc discovered there was - spherulite in the aggregate structure of the composite of pp
紅外光譜分析和熔體質量流動速率的測定表明,復合材料體系產生了微交聯; dsc分析發現, pp材料的聚集態結構中含有球晶。The polymerization kinetics of pam, the feeding pattern of the initiator naoh and a method used to characterize the spherulite morphology of monomer casting nylon were investigated. the mechanics of inhibition of pam to the polymerization of nylon was certificated by means of a series of experiments
通過兩個體系的pam pa - 6復合材料的力學性能、 sem 、 xrd 、 dsc和tem等測試方法研究復合材料的結構與性能間關系,表明聚甲亞胺端基對復合材料性能有一定的影響。2801 and lbg was used as polymer matrix because of their different hfp ratio, dbp was used as plasticizer. the films were made by bellcore method. structure, crystallinity, liquid uptake and conductivity of the films with different ratio of pvdf dbp sio2 was determined
本文用hfp含量不同的2801和lbg為基體, dbp為增塑劑,採用bellcore方法制膜,得到了聚合物電解質的結構、結晶度、吸液量和電導率隨sio _ 2 、增塑劑含量、聚合物結晶度的變化規律,並對納米無機粒子改性聚合物電解質的機理進行了一些探討。Traditionally it is considered that particles are formed into the single - chain structure, while the body - centered tetragonal ( bct ) structure comes into being when the particle volume is a little high. and the other structure models such as the layer model, the fiber model, the column model and so on
粒子發生聚集所形成的結構傳統的認為是單鏈模型,而當粒子的體積濃度比較大時,一般認為是體心四方結構(即bct模型) ,此外還有諸如層結構模型、纖維結構模型、圓柱結構模型等等。Therefore, it is really necessary to improve the anti - jamming ability of cmts ( cable modem termination system ) based on current docsis protocol. this paper firstly investigates the topology, architecture, key devices and channel features of hfc network, then points out its inherent disadvantages of this kind of topology
本論文首先對hfc網的拓撲結構、體系結構、關鍵設備、通道特點等方面進行了充分的研究,指出這種網路拓撲結構固有的缺點,那就是上行是多點到一點的信號匯聚。A “ cosmic origins spectrograph ” will examine the structure and composition of the matter concentrated in the “ cosmic web ” ? long, narrow filaments of galaxies and intergalactic gas separated by huge voids
「宇宙起源光譜儀」將檢查聚集在「宇宙網」 (星系和星系間氣體被巨大的空間分隔所組成的狹長線)中的物質的結構和組成。The crystallization and melting behavior of mellocene - catalized branched and linear polyethylenes of low molecular weight was studied. it was found that the crystalline lattice of branched polyethylene is larger than that of linear polyethylene because of the existence of branched chains. the melting behavior of branched polyethylene is similar to that of linear polyethylene since the branched chains can not enter the lattice. however, the crystalline behavior of low molecular weight branched polyethylene is the same as that of high molecular weight linear polyethylene, but different with that of low molecular weigh linear polyethylene. kinetics theory analysis evidenced that the transition temperature of growth regime of the branched polyethylene is about 20 lower than that of linear polyethylene with the same molecular weight. it may be attributed to the existence of short branched chains
研究了金屬茂催化的低分子量支化聚乙烯和線性聚乙烯的結晶及熔融行為,發現支化聚乙烯的結構與線性聚乙烯相同為正交結構,但晶格略有膨脹.支鏈的存在對熔融行為影響不大,兩種聚乙烯的熔點均隨結晶溫度的升高而非線性增加,表現出低分子量樣品的共同特徵.但支鏈的存在對結晶行為卻有很大的影響,主要是由於支鏈的存在降低了晶體的結晶速率從而影響結晶過程,使得低分子量的支化聚乙烯的結晶行為與高分子量線性聚乙烯的結晶行為相似而與低分子量的線性聚乙烯不同.動力學分析表明,低分子量的支化聚乙烯的結晶生長方式的轉變溫度比同等分子量的線性聚乙烯降低了約20Polyparaphenylenevinylene ( ppv ) has been paid attention to because of good photoelectric property and peculiar molecule framework ; fullenene have three - dimensional conjugated structure and diminutive electron binding energy, and its peculiar structure and property has interested photoelectric scientist. as an electronic acceptor, c60 can enhance the efficiency of organic photoelectric cells compounded with ppv. but the little solubility of c60 in common organic solvent limited its application, and processing measure need more researchment
聚對苯乙撐( ppv )具有優良的光電性能和特有的分子構架而倍受關注, c _ ( 60 )具有三維共軛結構完美的對稱性和小的電子結合能,以其獨特的結構和性能引起了光電科學工作者的極大興趣,將c _ ( 60 )作為電子受體與共軛聚合物ppv復合可以使有機光伏電池的效率提高。However, the enzymatic activity of this mutant decreases by more than 90 %
N一末端是形成緊密二聚體的必需結構元件。The md simulation data were analyzed in terms of average atomic positions, root mean square ( rms ) fluctuations, monomer - monomer interactions, hydrogen bond ( h - bond ) network, secondary structure, and so on. through the comparison, we found that when the system includes zn2 + ions and phenol, the stability of insulin hexamer is enhanced, but the conformational flexibility related to its biological activity is decreased. in addition, the insulin hexamer tends to dissociate in the absence of zn2 + and phenol
通過對這兩個模擬所得到的軌跡在原子的平均位置、方均根漲落、方均根偏差、單體之間相互作用、氫鍵網路、二級結構等方面進行的比較分析發現,對于包含鋅離子和苯酚的體系,胰島素六聚體的穩定性得到了增強,但其構象柔性卻受到了削弱;對不含鋅離子和苯酚的體系,胰島素六聚體的穩定性明顯減弱,構象柔性卻表現得較為突出,在這種情況下,胰島素六聚體還表現出解聚的傾向。In the kidney, lung, eye and brain, multiple water - channel homologs are expressed, providing a network for water transport in those locations
已確定水孔蛋白的基本結構是在細胞膜中以四聚體的形式存在。The ordered and micro - phase structures of the molecular of pu materials are decided directly by its synthesis technology, composition and other materials compounded with it, and they will influence the possessive properties of pu materials. in this paper, general studies on pu have been carried out by the methods of controlling the prepolymerize technology, taking off dissociative tdi from prepolymer through decompress boiling distilling technology, polymerized in - situ with nano - particles and interpenetrated with ps, the relationship between properties and structure of pu / omt, pu / sio2 nano - composites and pu / ps ipns were characterized by ftir, dmta, tem andtga
本文用控制預聚體反應中單體的摩爾比、減壓共沸蒸餾去除預聚體中游離tdi 、用納米填料參與聚氨酯原位復合和與聚苯乙烯進行互貫等方法,合成了聚氨酯蒙脫土納米復合材料、聚氨酯sio _ 2納米復合材料和兩步法合成的基於聚醚( ppg )和聚酯( 3010 )的聚氨酯苯乙烯互穿網路聚合物材料,研究了其性能;運用ftir 、 dmta 、 tem 、 tga等表徵手段,對復合材料的結構進行了研究。Secondly, essential law of soil crust formation was obtained : when coarse sand exceeded 50 %, soil crust dominated by depositional crust would be formed. when soil clay exceeded 30 % and soil aggregated degree was less than 140 %, soil surface tended to form soil crust dominated by structural crust
四、土壤聚合劑聚丙烯酰胺( pam )對控製表土結皮形成的效果: pam能控製表土結皮形成的主要原因是, pam能改善土壤的結構狀況,顯著提高土壤團聚體的穩定性,從而有效的抑制了表土結皮的形成。To prepare the functionally gradient materials ( fgm ) of polysilane - polyacrylate, the method of solution preparation was performed. based on the results of the back - scattered electron images and linear scanning of the polysilane - polyacrylate film ' s cross section, the dependence of polysilane - polyacrylate film ' s structure on molecules of polysilane and polyacrylate, pmma / pmts feed ratio and component concentration were investigated
通過測試有機硅聚合物-聚甲基丙烯酸酯樹脂膜的結構,分析了聚有機硅( pmts ) 、聚甲基丙烯酸酯( pmma )的分子量、 pmma pmts體系配比、組分濃度等因素對有機硅聚合物-聚甲基丙烯酸酯樹脂膜結構的影響。The organic matter influenced > 0. 25 mm soil particle aggregation and > 0. 5 mm water - stable soil particle aggregation slightly and played an important role in the aggregation of > 5 mm water - stable soil particles. the percentage of aggregates destruction were remarkably negatively related with content of > 5 mm water - stable soil particle aggregate, and ultimately negatively related with > 0. 25 mm water - stable soil particle aggregate, which meant the content of water - stable soil particle aggregate dropped as the rise of percentage of aggregates destruction, the loosely fe took a role in increasing content of water - stable soil particle aggregate. the main factor that affecting content of > 0. 5 mm water - stable soil particle aggregate was percentage of aggregates destruction, whereas organic matter and percentage of aggregates destruction were the dominating matters that influencing content of > 0. 25 mm water - stable soil particl
粘粒含量在各級團聚體的形成過程中起著一定的作用;有機質對0 . 25mm團聚體、 5mm水穩定性團聚體有一定作用,對0 . 25mm水穩定性團聚體起顯著作用;團聚體結構破壞率與5mm水穩定性團聚體成顯著負相關,與0 . 25mm水穩定性團聚體達到極顯著負相關,說明結構破壞率越大,水穩定性團聚體的數量就越少,反之越多;游離鐵含量對促進水穩定性團聚體方面起一定的作用,影響0 . 5mm水穩性團聚體含量主要是結構破壞率,而影響0 . 25mm水穩定性團聚體含量的是有機質和結構破壞率。In this paper, the structure characteristics and lubricating theory of teflon is studied, and tribology capability of teflon is researched on four - ball machine, and the serviceability and development of teflon used as lubricant additive is discussed
摘要研究了固體潤滑劑聚四氟乙烯的結構特徵和潤滑原理,使用四球摩擦試驗機研究了聚四氟乙烯的摩擦學性能,探討了聚四氟乙烯作為潤滑添加劑的應用現狀與發展前景。The influence factors to electrochemical deposition and gradient distribution of pmgcf, such as the predrying extent of the swelling cathode film, the excessive power voltage of the cathode, the ph value of electrochemical reduction medium solutionn, the microstrucure of polymer matrix, were majorly invested in this thesis
本文著重討論了了溶脹陰極膜的預乾燥程度、陰極過電位、電解質溶液的ph值、聚合物基體的結構等因素對金屬銅在溶脹陰極膜中的沉積分佈以及結晶的形態的影響。分享友人