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The effects of the AlCA and NaCl concentration, the hydrolysis degree and the concentration of HPAM, the pH value, and the aging at certain temperature on the morphology and properties were also investigated.

在同一pH值条件下，／比值越小，交联反应速度越慢，柠檬酸含量太高时，不能发生交联反应。

The glutamine synthetase produced by the engineering bacteria can specially act on NH4 and aminoglutaric acid, the durability to the high concentration ammonium ion has been distinctively improved because of the dissolution of adenosine acylation modification, the major bottleneck of glutamine with enzymatical production has been solved, and the concentration of the obtained glutamine can reach 47.6g/L.

本发明工程菌产的谷氨酰胺合成酶可专一性的作用于NH 4 和谷氨酸，且因解除了腺苷酰化修饰作用对高浓度铵离子的耐受能力显著提高，解决了酶法生产谷氨酰胺的重要瓶颈，生成的谷氨酰胺的浓度最高达到47.6g/L。

In this research, the spider silk from the major ampullate gland of native Nephila pilipes was collected via the forced-silking apparatus at the reeling speed of 3 m/min. The obtained silk was dissolved in hexafluoro-isopropanol. The influence of pH and temperature over the secondary structure of the silk protein in solution state was examined via Circular Dichroism. The effect of silk concentration and electrical field strength on the structure conformation of silk protein during film casting process was investigated via FT-IR. During the drying process, the increase of silk concentration and the presence of electric field tend to form β-sheet and β-turn. Finally, the dried film of silk protein was treated with different temperatures and cation solutions to study the post-treatment effects.

本研究所采用之蜘蛛丝蛋白质系取自本土品种人面蜘蛛之大囊壶腺体，以3 m/min之卷丝速度强迫取丝(forced-silking)收集蜘蛛丝，再将纤维溶於六氟异丙醇溶剂中配制成溶液，以圆二色光谱仪分析在不同 pH 值与温度条件下丝蛋白质在溶液中之二级结构变化，再将蜘蛛丝溶液以不同浓度及电场强度下乾燥成薄膜后，以傅立叶红外线光谱仪检测分析丝蛋白质在固体状态下之二级结构，最后以不同温度加温、离子溶液浸泡等条件对乾燥所得之薄膜进行后处理，并分析其二级结构之变化。

The structure of ITO films prepared on flexible substrate for different concentration of SnO2 is polycrystalline bixbyite, the crystal lattice parameter of films increases and distortion of crystal lattice is more obvious with the increasing of SnO2 concentration.

用不同掺杂比例的靶材制备的薄膜均为多晶纤锌矿结构，掺杂比例增大，样品的晶格常数变大，晶格畸变明显。

It is concluded that the main influence factors on the micro-hardness of the nickel deposit are sulphamate concentration and electrolyte temperature. The most hard nickel deposit layer was obtained with sulphamate concentration 700g/L, cathodal current density 5A/dm2, pulse current frequency 800Hz, pulse current duty cycle 0.6, electrolyte pH value 4.0, electrolyte temperature 70℃.

试验结果表明：主盐浓度和镀液温度是影响镀层硬度的显著因素；当主盐氨基磺酸镍的浓度为700g/L，阴极电流密度为5A/dm2，脉冲频率为800Hz，占空比为0.6，镀液pH值取4.0，镀液温度为70℃时，可以制得显微硬度最高的镍镀层。

For D-fructose functionalized BOPP, three parameters including irradiation time, cerous concentration and hydrogen ion concentration all have positive effect on monosaccharide immobilization.

水接触角数据也揭示了酮糖和醛糖在改性效果方面的差异，酮糖改性的BOPP膜的表面水接触角在47°左右，而醛糖改性的BOPP膜的表面水接触角为60°。

The chemical structure of the product was characterized by means of the melting point and IR. The results show that tetraethylammonium bromide which was used as a phase transfer catalyst in this reaction had optimization effect on the interfacial diffusive reaction of BTC and PNP. Higher concentration of sodium hydroxide, lower temperature and a higher dosage of BTC produced a small amount of 4-nitrophenyl chloroformate, while lower concentration of sodium hydroxide and a lower dosage of BTC made reaction incomplete, which affected the yield.

结果表明，在碳酸二（4-硝基苯基）酯合成中使用的相转移催化剂四乙基溴化铵对受界面扩散控制的BTC气与对硝基酚钠反应有良好的相转移催化效果；氢氧化钠质量分数较低时，酚钠盐向溶有BTC的油相扩散速度较小，较高时会产生氯甲酸对硝基苯酯；温度较低、BTC量较高时，会产生少量氯甲酸对硝基苯酯，BTC用量较低会使反应不完全，这些都影响着收率。

A one-year investigation on the N and P concentration and accumulation of Cyperus malaccensis in the wetlands of Minjiang River estuary showed that the N and P concentration of C.

对闽江河口湿地优势植物短叶茳芏N、P养分含量与积累量进行了1年的监测。

Methods:The Caco-2 cell monolayer model was used to study the bi-directional transport of daphnetin and the effects of time,temperature,pH,drug concentration and P-gp inhibitor on the daphnetin absorption.Drug concentration was measured by HPLC and the apparent permeability coefficients were calculated.

采用Caco-2细胞单层模型研究祖师麻甲素的摄取和跨膜转运，采用HPLC法检测药物浓度，计算其表观渗透系数，考察时间、温度、pH值、药物浓度以及P-gp抑制剂对祖师麻甲素吸收的影响。

The cardiomyocyte viability were detected by MTT assay for calculating the survival rate and the inhibitory rate of the virus. Myocardial F-actin and VEGF were analyzed by immunofluorescent staining with confocal microscopy. Mean fluorescent intensity of F-actin and VEGF were determined by flow cytometry.Results There is no toxicity on cardiomyocytes when PD is at concentration of 0.02 mmol/L and 0.2 mmol/L while there is toxicity at concentration of 2 mmol/L. CVB3 could reduce the viability of cardiomyocytes, depolymerize F-actin cytoskeleton and reorganize VEGF protein.

体外培养心肌细胞，用100 TCID50柯萨奇B3病毒（CVB3）感染心肌细胞，建立病毒性心肌炎实验模型，然后分别用0.02mmol/L、0.2mmol/L、2mmol/L三种不同浓度的PD处理感染CVB3病毒的心肌细胞，观察心肌细胞的形态和搏动，用细胞免疫荧光技术标记纤维状肌动蛋白和VEGF蛋白，四唑蓝比色法测定心肌细胞活性和病毒抑制率，流式细胞仪检测各组心肌细胞VEGF蛋白和F-actin平均荧光强度。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷