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The emulsion characteristics and properties of PU films were studied by means of rotational viscosimeter,Autosizer ,tensile tester and atomic force microscope.

通过粘度测定、粒度分析、力学性能和耐水性能测试、原子力显微镜分析,研究了软段类型、软段分子量对乳液及其胶膜性能的影响。

Based on field experiment and measure data, ecological characteristics of soil water in different fencing sandy land in arid desert area and vegetation restoration effect of soil water variation in fencing sandy land were analyzed. In representation of Artemisa arenaria DC population, observing and researching vegetable restoration effect of soil water variation in fencing sandy land. The results indicate as follow:(1)With the vegetation development constantly in fencing sandy land, soil water utilization of vegetation increased. It made soil water content and soil water storage reduced with the increase of fencing time in sandy land.

本文通过野外实验测定数据,分析研究了干旱荒漠区不同类型封育沙地土壤水分生态特征,以及封育沙地土壤水分变化对植被恢复的影响,并以当地沙蒿种群为代表,观测研究封育沙地土壤水分变化对植被恢复的影响,结果表明:(1)封育沙地随着植被的不断生长,植被对土壤水分的利用也有所增加,从而使沙地土壤含水量和储水量随封育时间的加长而表现为一定的降低趋势。

The canopy interception will increase with the precipitation during at the beginning of rain, but it will keep stable later. The canopy interception quantity of six forest types is Mixed conifer forest, Pinus massoniana forest, Cupressus funebris forest, Conifer and broadleaf forest, Broadleaf forest and Shrubbery and grass land in order.There is much difference among the different species of the shrub and herbage.

林下灌草层不同的物种最大持水量有很大区别,在测定的物种中持水量最大的是糯米条,持水量最小的是柞木,糯米条的持水量接近柞木的3倍。6种森林类型林下灌草生物量从大到小依次是灌草地、马尾松林、针叶混交林、针阔混交林、阔叶林和柏木林;灌草层的持水量与其生物量具有密切关系,生物量多的持水量相应也多。

Some important control parameters,including the concentration of samples,the pumping rate,the ultrasonic intensity and dispersion time,and the selection of the deflocculant,are optimized for the establishment of a standard operation process for soft clay.

采用马尔文公司生产的Mastersizer Micro(MAF5000)激光衍射粒度仪测定江苏连云港地区软土的粒度分布,对样品质量浓度、泵速、超声波强度与时间、分散剂选取等控制参数进行了优化设计,确定合适的控制参数,便于对相同类型的软土测量确定标准操作规程。

Methods:the thin layer scanning method was used to determine the content of ellagic acid.

选用4因素3水平正交表l9(34),以薄层扫描法测定鞣花酸含量,考察4个因素(溶剂类型,提取时间,提取次数,溶剂用量)、3个水平对鞣花酸提取率的影响。

Methods The levels of serum CRP in 210 patients with malignant tumor and 45 healthy persons were measured by emulsive immunodiffusion.They were analyzed by statistical method.

采用免疫散射比浊法测定210例不同类型恶性肿瘤患者及45例健康体检者的血清CRP水平并进行比较分析。

Based on soil desertification between agriculture and husbandry interlace zone in north of Shannxi Province, on the basis of theories of landscape ecology、land resource and principle of soil genesic science, through field surveying data and indoor analyzing, the properties of soil physical, chemical and biological characteristics are systemic analyzed about desertification soil of different vegetation cover rate and type, achieving primary achievements and important evolves are as follows:Ⅰ.

本研究基于当前全球荒漠化危害现状及国内外荒漠化防治中恢复生态学的发展需要,以陕北农牧交错带土地荒漠化问题为研究对象,应用景观生态学理论、土地资源学和土壤发生学的基本原理,在野外考察、资料收集和室内测定分析的基础上,对不同植被盖度和植被类型荒漠化土地的土壤理化性质和生物学性质进行系统分析,取得的主要成果如下: 1。

Drug sensitive test and three-dimensional test220 strains of Pa were isolated from hospitalized patients between 2003 and 2007. K-B method was used to tested the susceptibility of 10 different antibiotics. IRPa was screened by testing the minimal inhibitory concentration of imipemem by using agar diluiion method.The susceptibility of these IRPa to the antibiotics was analysised. Three-dimensional test was used to identify the different kinds of beta lactamases from 220 strains of Pa.2.Carbarpenems hydrolytic enzyme genes and oprD2 gene were detectedamong the selected IRPa strains, PCR method was performed to detect carbapenemase genes which included GES、KPC、SPM、VIM、IMP、GIM gene and the oprD2 gene;Multiplex PCR were used to detect OXA genes and plasmid-mediated AmpC beta lactamase genes; The expression of the chromosomal AmpC beta lactamases and oprD2 genes in IRPa strains were analyzed by Real-time PCR.3.Identification and characterization of integronsIntegrase gene was detected by PCR, and the classification of integrons was performed by using restriction fragment length polymorphism.PCR was performed to detect the qacE△1-sull gene,and the gene cassetes which are located at variable region of integrons in the strains were detected to be positive.

方法1、药敏实验和三维实验收集2003~2007年临床分离的220株Pa,对这些菌株采用K-B法测定10种临床常用抗生素的药敏情况,同时采用琼脂稀释法检测亚胺培南的最低抑菌浓度(Minimal inhibitory concentration,MIC),筛选出对亚胺培南耐药的铜绿假单胞菌,并分析其对其它抗生素的药物敏感率;采用三维实验的方法分析220株Pa产β内酰胺酶的类型。2、碳青霉烯类水解酶和oprD2蛋白的检测针对鉴定的IRPa菌株,采用普通PCR方法检测具有碳青霉烯水解作用的β内酰胺酶耐药基因(GES、KPC、SPM、VIM、IMP、GIM基因)和oprD2基因,采用多重PCR的方法检测OXA型基因和质粒携带的AmpC酶基因,用荧光定量RT-PCR方法检测oprD2蛋白基因表达情况;同时对产AmpC酶的Pa(25株,含IMP耐药和敏感株)用RT-PCR方法检测AmpC酶基因的表达量情况。3。

The comparison studies on gossypol of different genetic types of pigment gland in the seeds of cotton newly bred, including the special and common glandless and glanded ones, was conducted through highperformance liquid chromatography on a C18 Column with methanol 0.5% acetic acid aqueous solution, 90∶10 as mobile phase at a flow rate of 0.8mL·min-1 and UV detection at 254 nm.

运用高效液相方法对新近育成的特殊和普通的无腺体陆地棉及特殊和普通的有腺体陆地棉及海岛棉等多种遗传类型品种材料的棉酚含量进行了比较研究。实验以一反向C18色谱柱为固定相,甲醇 0.5%的醋酸90∶10为流动相,流速为0.8mL·min-1,建立了分离度好、准确而快速的棉酚HPLC测定方法:其最低检测限量3×10-6g/mL-1,精密度和准确度均小于10%,回收率为100.4%~103.2%。

Eight differential expression bands were cloned and sequenced.Blastn analysis showed that seven of them had highly homology(81%~100%)with EST sequences of Triticum aestivum and Hordeum vulgare.Six of the seven sequences came from Triticum aestivum,and one sequence came from Hordeum vulgare.

对上述5种特异表达类型中8条特异表达片段进行序列测定和分析,在相应的数据库,经Blastn比对,有7个序列在数据库中找到同源序列,且与普通小麦和大麦中的EST序列有较高的同源性,同源性为81%~100%,其中有6个来自普通小麦,1个来自大麦。

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