粘度测定法

The intrinsic viscosities , weight average molecular weights M w , number average molecular weights Mn were determined by viscometry,light scattering and memberane osmometry.

由粘度、光散射和膜渗透压法测定了特性粘度［η］、重均分子量Mw及数均分子量Mn，GL2、GL3和GL5多糖的Mw值分别为124×104、12.8×104和5.8×104。

Additionally, the oxidation degree or thealdehyde contents were measured by using photometry and titration methods.

采用直接法和间接法测定了氧化海藻酸钠的氧化度，以粘度法表征了相对分子质量。

The changes of molecular weight and viscosity of the UV-curing coatings during storage were determined by GPC and viscometry .

用凝胶渗透色谱和粘度法跟踪测定光固化涂料贮存期间的分子量参数和粘度，探讨了影响光固化涂料贮存稳定性的各种因素，对2种光固化树脂在加入不同光引发剂、不同活性稀释剂后的贮存稳定性作了评价。

Use viscometry to determine viscosity-average molecular weight of oxidated polyethylene wax and introduce the measurement,process and effect factors in detail.

用粘度法测定氧化聚乙烯蜡的粘均分子量。

A Novel Method for Intrinsic Viscosity Determination of Polymer SolutionThere are many methods for molecular weight determination of polymers, among which viscometry is used most, it has been broad applied both in production and scientific research. This method is easy to operate with simple instruments and is applicable for broad-range molecular weight, additionally, it has high precision.

在许多情况下，常需要对同种类聚合物的特性粘度进行大量重复测定，如果都按此法操作，每个样品至少要测定3个以上不同浓度溶液的相对粘度，这是非常繁琐的，而且需时较长，尤其在所得样品量极少的情况下，就难以用此法求得高聚物溶液的，为此，人们找到了更快速的近似方法，即"一点法"。

A modified approach was used to determine viscosityand blend miscibility parameter μ for mixture solutions between Aeromonasgum and Erwinia gum with other polysaccharides by using viscometry indilute aqueous solution.

采用粘度法测定了稀溶液体系中气单胞菌胶和欧文氏胶分别与黄原胶和果胶混合液的粘度数据，并按修改了的数学表达式计算出共混相容性参数。

Monomeric percentage of conversion measured by bromination and average molecular weight measured by viscosity method are also carried out.

用溴化法测定单体转化率，用粘度法测定聚合物的相对分子质量。

The different methods of blood pressure measurement and vital microcirculation observation method were used . The systemic blood pressure, arteriolar and capillary blood pressure decreased significantly after 3 months of Linzhi administration in addition to the routine hypotensor in 27 cases of refractory primary hypertension.

用各种血压测定法及活体微循环观察法发现，40例难治性高血压病人（治疗组27例，对照组13例）口服灵芝3个月后在大动脉血压、小动脉血压和毛细血管血压下降的同时，病人血粘度（高切、低切时的全血粘度及血浆比粘度）、红细胞压积和红细胞沉降率明显下降（P＜0.05），甲襞微血管数增多、口径扩大、流速加快（P＜0.05），血糖明显下降（P＜0.05），但胆固醇、甘油三酯及高密度脂蛋白下降不明显（P＞0.05）。

The relative molecular mass of chitosan fractionated by ultrasonic wave was measured by the light scattering method.

采用粘度法分析了不同溶剂对壳聚糖粘度的影响，用光散射法测定了超声波分级的壳聚糖的相对分子质量。

METHODS Acute incomplete ischemia was induced by ligaturing bilateral carotid arterise and cutting heads in mice, the survival time and asthmatic time were observed; the coagulation timewas measured by sheet glass method,and the blood viscosity was also assayed; the platelet aggregation induced by collagen were studied by turbdimetry in vitro.

采用结扎小鼠双侧颈总动脉造成急性不完全性脑缺血模型，观察平均存活时间；另取小鼠断颅后测定断颅喘息时间；采用玻片法，观察胡芦巴总皂苷对凝血时间的影响；采用比浊法；观察其对体外血小板聚集率的影响，并测定全血粘度。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐