The results showed: no significant difference was found between the results of single tube quantitative assay method and multiple tube fermentation technique;single tube quantitative assay method showed better accurateness,precision,and reproducibility than multiple tube fermentation technique;single tube quantitative assay method was quicker and more economical.

結(jié)果表明：MUG單管定量檢測(cè)法與大腸埃希氏菌多管發(fā)酵法對(duì)菌懸液99国产性爱、天然海水、水產(chǎn)品的檢測(cè)結(jié)果沒(méi)有統(tǒng)計(jì)學(xué)差異；MUG單管定量檢測(cè)法檢測(cè)數(shù)據(jù)的精確性高于大腸埃希氏菌多管發(fā)酵法，而且更為快速国产精品国产三级囯快看、經(jīng)濟(jì)。

Results: TFF2 peptide was distributed in cytoplasm of epithelial cells of the intercalated duct, striated duct and interlobular duct, and positive reaction was found in the cavity, especially near the cavosurface of epithelial cells in the striated duct and interlobular ducts.

結(jié)果：TFF2免疫反應(yīng)陽(yáng)性物質(zhì)主要位于閏管无码黄色视频大全、紋狀管和小葉間導(dǎo)管上皮細(xì)胞胞質(zhì)A片在线视频观看，特別是近管腔面更多，紋狀管和小葉間導(dǎo)管管腔內(nèi)亦有陽(yáng)性物質(zhì)分布亚洲中文字幕无码乱线；顆粒區(qū)管的少顆粒暗細(xì)胞或無(wú)顆粒細(xì)胞強(qiáng)陽(yáng)性超碰在线看；多顆粒細(xì)胞弱陽(yáng)性或陰性。

The structure and morphology of CNTs which have been purified and not yet, were characterized by TEM, SEM, XRD, Raman, TG-DTA, BET, IR. The results indicated that when the stokehole reaction temperature was 1170℃,the decompose temperature of Ferrocene was 150℃,he volatilize temperature of Benzene was 50 ℃, hydric flow rate was 270ml/min, the concentration of thiophene was l% and the reaction time was 20 minutes, the CNTs with single-walled and multi-walled were prepared.

結(jié)果表明：爐膛反應(yīng)溫度1170℃日韩精品片第7页在线观看视频、二茂鐵的分解溫度150℃最新网站毛片、苯的揮發(fā)溫度50℃、氫氣的流量270ml／min性小说在线视频、噻吩體積分?jǐn)?shù)1.00／100ml苯一级a看片免费视频、反應(yīng)時(shí)間20min時(shí)，可以得到碳納米管麻豆精品视频在线免费观看，既有單壁管又有多壁管，單壁管的內(nèi)徑分布在0.88～1.15nm之間色欲美女啪啪视频，多壁管的直徑分布在40～120nm之間欧美日劲；純化后的碳納米管比表面積增加，管壁光滑禁18在线观看免费视频，而且產(chǎn)生了大量的含氧官能團(tuán)日韩口爆，有利于在水溶液中的分散。

The structure and morphology of CNTs which have been purified and not yet, were characterized by TEM, SEM, XRD, Raman, TG-DTA, BET, IR. The results indicated that when the stokehole reaction temperature was 1170℃,the decompose temperature of Ferrocene was 150℃,he volatilize temperature of Benzene was 50 ℃, hydric flow rate was 270ml/min, the concentration of thiophene was 1% and the reaction time was 20 minutes, the CNTs with single-walled and multi-walled were prepared. The diameters of the single-walled CNTs are in the range of 0.08~1.15nm, and that of the multi-walled CNTs are in the range of 40~120nm.

結(jié)果表明：爐膛反應(yīng)溫度1170℃800avzaixian热久久、二茂鐵的分解溫度150℃谁有免费黄色网站直接看的、苯的揮發(fā)溫度50℃、氫氣的流量270ml/min国产极品白嫩精品的一线天、吩體積分?jǐn)?shù)1.00/100ml苯欧美色综合网站在线看、反應(yīng)時(shí)間20min時(shí)，可以得到碳納米管，既有單壁管又有多壁管A片免费视频A级，單壁管的內(nèi)徑分布在0.881.15nm之間亚洲精品偷拍第2页，多壁管的直徑分布在40120nm之間；純化后的碳納米管比表面積增加2021国产精品偷窥盗摄，管壁光滑www.色色色色，而且產(chǎn)生了大量的含氧官能團(tuán)，有利于在水溶液中的分散先锋影音资源精品资源站。

Launch dynamics and transfer matrix method of multibody system are used to develop a launch dynamics model, equations of vibration characteristics and dynamic response. The firing dispersion test method of a non-full loading fire rocket based on the idea of equal initial disturbance is presented.

應(yīng)用發(fā)射動(dòng)力學(xué)和多體系統(tǒng)傳遞矩陣法理論66J8影院在线观看，建立了多管火箭發(fā)射動(dòng)力學(xué)模型，推導(dǎo)出了多管火箭振動(dòng)特性和動(dòng)力響應(yīng)方程欧美女人兽牲交，形成了基于等起始擾動(dòng)思想的多管火箭非滿管射擊密集度試驗(yàn)方法人人看人人爱人人操人人做。

By using the transfer matrix method of multibody system, the hard problem of computation of the vibration characteristics of LRMLRS coupled with rigid bodies and elastic bodies is solved which is very difficult to the ordinary dynamic methods, and the vibration characteristics of LRMLRS which is varied when the number of rockets in the launch device is varied, is obtained conveniently. By developing augmented eigenvectors of the LRMLRS and its orthogonality conditions, the nonorthogonality problem of the multibody system including rigid bodies and elastic bodies is solved and the exact analysis of the dynamics response of the LRMLRS including rigid bodies and elastic bodies is realized. By using the random integer programming method, the hard optimization problem which contains continuous variables, discrete variables and random variables at the same time is solved. This method provides a technology for optimum design with random variables and discrete variables. The dynamic optimum design is realized to decrease the number of rockets consumption in the LRMLRS test. The simulation system of dispersion of fire is established by using the maximum entropy method to estimate dispersion of fire.

通過(guò)應(yīng)用多體系統(tǒng)傳遞矩陣法，解決了剛彈耦合遠(yuǎn)程多管火箭多體系統(tǒng)振動(dòng)特性這一通常力學(xué)方法不便于解決的計(jì)算難題免费人妻98，方便地獲得了遠(yuǎn)程多管火箭振動(dòng)特性及其隨發(fā)射架上火箭彈個(gè)數(shù)變化而變化的情況国产一级迷奸黄片视频大全；通過(guò)構(gòu)造增廣特征矢量及其正交性條件，解決了剛彈耦合多體系統(tǒng)特征矢量不具有通常意義下的正交性的難題欧美久久久黑人精品久久久极品，實(shí)現(xiàn)了對(duì)剛彈耦合遠(yuǎn)程多管火箭動(dòng)力響應(yīng)的精確分析人人摸人人干人人操不卡；應(yīng)用隨機(jī)整數(shù)規(guī)劃法，解決了同時(shí)考慮連續(xù)天码欧美一区免费精品、離散和隨機(jī)變量等多種設(shè)計(jì)變量的優(yōu)化設(shè)計(jì)難題国产三级国产精品三级在专区，為含隨機(jī)和離散變量的優(yōu)化設(shè)計(jì)提供了手段，實(shí)現(xiàn)了減少遠(yuǎn)程多管火箭試驗(yàn)用彈量的動(dòng)態(tài)優(yōu)化設(shè)計(jì)国产99久久久国产精品下药；建立了應(yīng)用最大熵法估計(jì)的密集度仿真系統(tǒng)超碰人人操人日人人，優(yōu)化射序和射擊間隔，實(shí)現(xiàn)了提高遠(yuǎn)程多管火箭射擊密集度的動(dòng)態(tài)優(yōu)化91麻豆精品福利。

Raman spectrum, UV-Vis spectra, IR, NIR and XPS spectra were used to characterize the material. The result indicates that there is a conjugative effect between MWNT and bromine, which induces the change of electron distribution on the MWNT surface. It increased the car- rier density and the electrical conductivity of MWNT became higher.

通過(guò)拉曼光譜欧美一级特黄大片aaa，紫外可見(jiàn)光譜，紅外吸收光譜欧美日韩在线一，近紅外吸收光譜和X光電子能譜等方法研究两男一女一级A片免费看，結(jié)果表明：溴與多壁碳納米管之間存在共軛作用，使多壁碳納米管表面的電子云分布發(fā)生了變化日韩妓女精品视频播放网站，導(dǎo)致空穴載流子的產(chǎn)生毛片视频免费观看高清在线，增加了載流子濃度，提高了多壁碳納米管的導(dǎo)電性能国内乱伦视频。

Although the SWNTs are higheractive, their price is great higher than that of MWNTs, so we try to functionalize theMWNTs with the same method.

盡管單壁碳納米管的活性高于多壁碳納米管一木高清dvd，但其制備成本遠(yuǎn)高于多壁碳納米管，因此我們也嘗試了用沉淀聚合方法改性多壁碳納米管久久久久久久精品国产免费…。

CNTs were first pre-treated using acid solution (HNO3) to obtain CNTs functionalized with carboxylic groups. Subsequently, the stearyl alcohol was grafted onto CNT with the assistance of dehydrating agent, N,N'-dicyclohexyl-carbodiimide. Excellent dispersion in organic solvents such as acetone, THF, and chloroform was found for the modified CNTs (CNT-C18). In addition, the PBS/CNTs nanocomposites were then prepared through simple melt-blending. Mechanical properties, thermal behavior, conductivity of resultant polymer/CNT composites were investigated. The results show that excellent dispersion of nanotubes in the PBS matrices was achieved.

為了增加多壁奈米碳管在復(fù)合材料中的分散性无吗不卡强奸轮奸视频，將碳管表面進(jìn)行化學(xué)修飾，首先將多壁奈米碳管浸入HNO3溶液中，進(jìn)行酸化亚洲一级性交黄片，使碳管表面帶有羧酸的官能基网站18禁，然后再加入十八烷醇，在溫和的條件下欧美激情在线第三页，藉由N18歲在线网址，N'-二環(huán)己基碳二亞胺(N，N'-dicyclohexyl- carbodiimide国产色一区，DCC)脫水劑脫水日本人人射，使碳管和十八烷醇之間產(chǎn)生酯基的化學(xué)鍵結(jié)，改質(zhì)后的碳管可以分散在acetonewww.中文字幕在线播放、THF在线免费看黄色乱视频、chloroform…等有機(jī)溶劑中，結(jié)果顯示成功的利用DCC脫水劑完成碳管的改質(zhì)亚洲中文经典三级片在线视频。

objective to evaluate clinical effect of the handling protaper nickel-titanium rotary instruments in preparation of canals of posterior teeth.methods 96teeth with pulpitis or periapical periodontitis were instrumented by handling protaper rotary instruments using step-down technique,and by k files using step-back technique for control.all teeth were obturated with lateral condensation methods.the efficiency of preparation was analyzed with ra-diographs before and after operation.results no transportation,apical blockage and ledge were found in test.the technique could keep canals smooth.there were two ledge,one instrument fracture and nine transportation in control.the operative time was shorter and post treatment pain seldom occurred in handling protaper group.conclusion the handling protaper niti rotary instruments can prepare the canals effectively and safety.after the preparation,the canals could be easily washed,sterilized and filled.it is an efficient instrumentation method for posterior teeth's canals and be used widely.

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