Methods: The analytical column was SHIMADZU VP-ODS C18 column(4.6 mm×150 mm 5 μm) with a mobile phase consisted of 0.05 mol/L disodium hydrogen phosphate solution(85% phosphoric acid solution with pH adjustment to 2.5)-acetonitrile-methanol(42.5∶47.5∶10) at the flow rate of 1.0 ml/min the detection wavelength was set at 254 nm.

目的：建立丙酸氯倍他索尿素乳膏中丙酸氯倍他索含量的HPLC測(cè)定方法。方法：色譜柱為SHIMADZU VP-ODS C18柱(4.6 mm×150 mm5 μm)流動(dòng)相為0.05 mol/L磷酸氫二鈉溶液(用85%磷酸溶液調(diào)節(jié)pH值至2.5)-乙腈-甲醇(42.5∶47.5∶10)流速為1.0 ml/min 檢測(cè)波長(zhǎng)為254 nm巨乳爆乳在线。

The distribution and the variation of the pre-stressed effective quantities in the cross section of the beam are comprehensively analyzed by the FEA along with the variation of the span numbers, span length and linear rigidity ratio of beam to column, wherefore the effect factors and the specific conclusions of lateral restraints on the pre-stressed formation in the concrete beam are drawn.

本文以豎向支承構(gòu)件有一定側(cè)向剛度的預(yù)應(yīng)力混凝土框架結(jié)構(gòu)為研究對(duì)象，分析了框架梁受到柱的側(cè)向約束時(shí)的受力機(jī)理，并運(yùn)用有限元數(shù)值模擬計(jì)算方法全面分析了隨著梁柱線剛度比日韩无码av毛片、跨度、跨數(shù)等諸多因素的變化丁香婷婷激情综合网，框架梁中預(yù)應(yīng)力有效量的分布和變化情況欧美日韩视频，得到了側(cè)向約束對(duì)框架梁建立預(yù)壓應(yīng)力的影響因素和具體結(jié)論。

The principal of buffer is described as follows.At impulsing down,the piston moves down and vacates the annular space.The pressure in respiratory cavity decreases to a certain level and the traveling valve opens.At that time,the liquids enter into traveling valve and cavity and the plunger is impulsed upward to carry out the gentle transient at the sudden change.When the upward impulsing begins,the respiratory cavity is subjected to pressure and the traveling valve closes.During the gradual pressure rising,the liquids in respiratory cavity effuse from the upper ventage and the sudden change of force-summing direction of plunger is relieved relying on the resistance of ventage.

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To obtain new ideas on optimal composite material structure, the fine structures of the trabeculae of the elytra of Allomyrina dichotoma Linné and Prosopocoilus inclinatus Motschulsky were investigated using scanning electron microscope.

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The results showed as follows: 1 Extraction of gelsemium total alkaloids. Total alkaloids were extracted with 95 per cent ethanol. The extract rate was 0.519 per cent and the extract purity were 88.02 per cent and 87.38 per cent; Total alkaloids were extracted with chloroform .The extract rate was 0.416 per cent and the extract purity were 89.02 per cent and 94.52 per cent. 2 Isolation of gelsemium total alkaloids with TLC. Total alkaloids contained five or more alkaloids. The optimal developing agent was chloroform :methanol :ethyl acetate(9:l:0.3),the optimal eluent was methylene chloride:methanol(92:8). 3 Isolation of total alkaloids with column chromatography. Alkaloid A and alkaloid B were obtained, alkaloid B was identified as koumine.

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A protein extraction method using 6 M guanidine hydrochloride with heating was developed for proteome analysis of formalin-fixed tissue.

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Results showed that,under conditions of pH=2.70,using 0.085 mol/L PBS as buffer solution,flow rate 0.8 mL/min,sample injection volume 10 μL,column temperature 25 ℃ and the UV detection wavelength 214 nm,the six kinds of hydroxy acid can be...

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A two_dimensional photonic cystal with a lattice of elliptic air cylinders, which are filled with the EIT atomic vapor, in the KAs backgroud material is designed.

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Taking the initial imperfection into consideration, the geometrical nonlinear analysis was performed for the latticed column.

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In section four, we point out that the mapping cylinder is not equivalent with the octahedral axiom.

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