Low molecular weight mannuronic acid, guluronic acid and κ carrageenan were prepared from algin and carrageenan by the acid hydrolysis method, and their weight average molecular weights and the distribution widths of molecular weight were determined by high performance gel permeation chromatography respectively.

本文以褐藻膠和κ-卡拉膠為原料通過(guò)酸水解分別獲得了低聚的甘露糖醛酸轮奸视频网址、古羅糖醛酸和低聚κ-卡拉膠日本三级日本成网人站，并采用 HPGPC法測(cè)定了這 3種低聚糖的重均分子量。在此基礎(chǔ)上再經(jīng)硫酸酯化和成鹽修飾制備了各自的硫酸酯堿式鋁鹽在线伊人免费观看。

The object of projectile design is analyzed, and the layer-TOPSIS method is provided for the evaluation of total effectiveness by taking the layer concept into the TOPSIS method. In the calculation of object weights, the grade calculation method is suggested, which has less dependence on the subjectivity of decision-maker and can take account of both sensitivity and allowableness of objects, the geometric-arithmetic method is provided for grade weight calculation and methods for sensitive weight and allowable weight are given. Of modes in system analyzing, the penetration model of target with spherical-fragment is carried out based on the theory of Dynamic Spherical Cavity Expansion, and it is a supplement of the models for calculation the damage of the fragmentation warhead to target.

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The effects of temperature,shearing rate,angular frequency,molecular weight and molecular weight distribution on the rheological behavior were discussed.The resultsshowed that the molecular weight and its distribution of the polymer inferred from ...

研究表明，從穩(wěn)態(tài)和動(dòng)態(tài)測(cè)得的流變曲線(xiàn)求得的4種PP切片的分子量及其分布指數(shù)是同落球粘度法與熔融指數(shù)法相結(jié)合求得的分子量分布指數(shù)相吻合的色色日韩欧美网站。

The apparent weight of calcium,the length and weight of the rats,and the length,weight,bone density and calcium content of the femurs were measured in every group.

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For each substance, a mole is its atomic weight, molecular weight, or formula weight in grams.

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It measures weight quickly and accurately and displays weight is gram, avoirdupois ounce, troyounce, or penny weight, totally 4 units.

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Round the actual weight is loaded through the load bearing axle parts, such as the role of the body in the weight-bearing load of the central hole roulette wheel, the weight-bearing pressure rim round the bottom of rubber board in the track.

負(fù)重輪的實(shí)際受載情況是負(fù)重輪軸通過(guò)軸承等零件將車(chē)體載荷作用在負(fù)重輪輪盤(pán)的中心孔上，負(fù)重輪下方橡膠輪緣壓在履帶板上色精品网站。

In this dissertation, the best simultaneous approximation with weight to infinite sequence from simultaneous-suns in complex normed linear space is considered, and in the case when the weight satisfies a certain condition, the characterizations of approximation from a simultaneous-sun and uniqueness of approximation from a RS-set are obtained; moreover, in the case when the weight is free, the characterizations of approximation to a totally bounded sequence from a convex set are established.

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The result showed that the single correlation between the characters of weight and heart girth, chest width and circumference of cannon bone was significantly different. The correlation between weight and heart girth, chest width, circumference of cannon bone was highly positive correlation. Among seven regression models, the correlation index of six regression models was over 0.7, but that of 60 days was 0.452. The result suggested that selecting body weight was efficient through heart girth, body high, chest width and circumference of cannon bone.

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The time required for the feed passing through the alimentary tract increased with the increase of body weight.Pigs with body weight of33 kg.were fed with daily ration of 48g and 30g per kg body weight,and the speed of chyme passing throug...

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