测定时间

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。

In order to learn the influence of entanglements and other factors on the structural changes of atactic polystyrene, freeze-dried single-chain samples were prepared from dilute solutions of atactic poly- styrene in benzene at different concentrations (1×10-4 and 2×10-5 g/mL).

利用FTIR测试方法，测定a-PS在等温处理时红外吸收峰的时间依赖性与温度依赖性，研究样品中链缠结和链结构单元的堆积等因素对红外吸收峰的影响，进而探讨链缠结对a-PS分子运动的影响。

Isolations of the s.aureus insoluble peptidoglycan:(1) the s.aureus insoluble peptidoglycan was gained by cold, hot and hypersound affection repetat of s.aureus(ATCC25923);(2) the s.aureus insoluble peptidoglycan was gained by 10% trichloracetic acid, 5% trichloracetic acid,NH4HCO3 buffer with trypsin digestion of s.aureus(ATCC25923) in order. 2. Isolations of the s.aureus soluble peptidoglycan and quality control:(1) the s.aureus soluble peptidoglycan was released by short dose benzylpenicillin sodium and purified by sephadex G-100.(2) The quality control in the process of isolation: the soluble peptidoglycan was detected by SLP reagent kit; the LPS was detected by kinetic turbidimetric limulus test;and the protein was detected by improved LOWRY reagent kit.

金黄色葡萄球菌可溶性肽聚糖的分离提取及其质量控制(1)采用青霉素钠诱导法和葡聚糖G-100(Sephadex G-100)凝胶柱分离提取金黄色葡萄球菌可溶性肽聚糖；(2)金黄色葡萄球菌可溶性肽聚糖提取过程中的质量控制：采用SLP试剂盒对提取物定性检测，应用动态浊度法鲎试验测定提取物中内毒素含量，采用改良LOWRY试剂检测提取物中蛋白的含量；(3)采用青霉素诱导和Sephadex G-100凝胶柱分离提取金黄色葡萄球菌可溶性肽聚糖的条件：青霉素使用量、加入青霉素后孵育时间和菌液浓度等优化选择。

The effects of extraction temperature, microwave power, extraction time on betulin yield by MAE were discussed and the betulin content was determined by HPLC.

考察了提取温度、微波功率、提取时间对桦木醇收率的影响，并用高效液相色谱法测定了萃取物中桦木醇的含量。

Results: The optimum conditions of determination: the volume ratio of the polysaccharide and anthrone-sulfuric acid is 1:2; the time of color hydrolysis is 8.00 min; the cooling time at room temperature is 15.00min. On this condition, there was favorable correlation between the absorption of Dextron T20 and polysaccharide of Bletilla striata.

结果：当多糖溶液与蒽酮试剂比例为1：2，水解显色时间8.00min，室温冷却放置15.00min时，测定葡聚糖T20和白芨多糖含量具有良好的相关性。

Methods:The proliferation inhibition of cantharides injections on LoVo cells were detected by tetrazolium.Annexin V-FITC were applied to study cell apoptosis of LoVo cells.FCM were applied to detect the expressions of the Fas and Bcl-2 protein.Results:Cantharides iniections could inhibit the proliferation of LoVo cells and could couse cell apoptosis.

四甲基偶氮唑盐测定药物对LoVo细胞抑制作用与时间和剂量的关系，Annexin V-FITC方法对细胞凋亡进行检测，流式细胞术检测细胞Fas、Bcl-2蛋白表达水平结果：MTT实验表明复方斑蝥注射液可抑制LoVo细胞的生长并诱导发生凋亡。

Immunocytochemistry was used to observe the change of TH-IR positive neurons in substantia nigra and nNOS-IR positive neurons in caudatum, respectively.

同时设立SVHRP治疗组，测定小鼠爬竿和游泳时间以检测其运动协调性。

The effects of temperature and reaction time on the conversion of phenylaldehyde and yield of cinnamaldehyde were determined from 220℃ to 300℃.

在温度220~300℃范围内，测定了温度和反应时间对苯甲醛转化率和肉桂醛收率的影响。

The cinnamaldehyde as a main component in the essential oil was determined. The effects of type of solvent, temperature, extraction time and ratio of solid to solvent were examined and optimized.

考察了NPSMAE提取溶剂的种类、提取温度、提取时间及固液比等对测定的影响，同时将NPSMAE与超声波辅助提取及水蒸气蒸馏等方法进行了比较。

We determinedthe compartmental pharmacokinetics of dantrolene, simulatedthe concentration time course based on currently recommendeddosing, and suggest an optimal regimen.

我们测定了丹曲林的分室药代动力学，模拟基于近来建议剂量的浓度时间过程，并提出了一个理想的给药方式。9名志愿者(55–89kg)接受静脉输注丹曲林(5mg/kg ，30分钟后给予0.05mg · kg–1 · h–15h)。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。