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optimum conditions相关的网络例句

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For a deep study on the characters of starch phosphorylase as well as its physiological effects during starch metabolism, the optimum extractive techniques and measurement conditions of SP in the bulb of Lilium davidii var. unicolor were ascertained, furthermore, some biochemical nature of this enzyme were preliminarily studied in this experiment.

摘要为深入研究百合鳞茎淀粉磷酸化酶的性质及其在鳞茎淀粉代谢中的生理作用,本试验确定了兰州百合鳞茎内SP的最佳提取和测定条件,并对部分酶学性质进行了初步探索。

The optimal medium consisted of 2% glucose, l.5% soluble starch, 2% peptone, 0.5% soya powder, 2.5% unpurified salt, initial pH 6.0~6.5. The optimum culture conditions was: 5% inoculation amount, seed cultural time 24h, 150mL liquid medium in 500mL Erlenmeyer flask, 29℃ and 180r/min for 3d.

对菌株B2817的发酵工艺进行了研究,得到其最佳的发酵培养基配方:葡萄糖2%,可溶性淀粉1.5%,蛋白 2%,黄豆粉0.5%,日晒盐2.5%,pH6.0~6.5。

For the veneering with 0.3mm thick veneer over a graduated particleboard, the optimum processing conditions were a UF adhesive level at 78g/m~2 over the board, a PVAC adhesive level at 42g/m~2 over the veneers and 4.6 percent 36% HCL ...

用0.3mm厚的水曲柳薄木对渐变结构刨花板饰面时,其最佳工艺条件为:脲醛树脂胶在刨花板上的涂胶量为78g/m~2,聚醋酸乙烯酯乳液在薄木上的涂胶量为42g/m~2,38%盐酸用量为聚醋酸乙烯酯乳液重量的4.6%。

Under the optimum experimental conditions, copper, iron and zinc in traditional Chinese medicines such as radix angelicae sinensis, flos sophorae, herba taxilli, folium apocyni veneti and radix scutellarae were determined. The recoveries are between 90% and 110%, the relative standard deviation is less than 5%, and the experimental results are satisfactory. This method is rapid and reliable.

在选定的实验条件下,利用标准加入法分析测定了中药当归、槐花、桑寄生、罗布麻叶和黄芩等中药中的铜、铁和锌的含量,回收率为90%~110%,方法的相对标准偏差小于5%。

With egg yelk as raw material, extracted by aquiferous ethanol and aether, removing water and oil by acetone, we gain phospholipids mixture, and search the extracting conditions. The optimum condition is determined:extracting temperature (20 ), time (60mins), solvent (92%ethanol),solvent quantity (12 times of the yelk), at which yield is highest; using thinlayer chromatography to measure its component, the content of phosphatidylcholine extend to 68.2%.

本文以鸡蛋的卵黄为原料,采用含水乙醇与乙醚提取,通过丙酮脱水去油,得到粗品卵磷脂;并对提取条件进行了优化研究,结果表明:提取时间60分钟,用92%乙醇,加入含水乙醇是蛋黄重的12倍,在20℃时,卵磷脂收率最高;采用薄层扫描法定量检测,所得粗品卵磷脂的纯度高达68.2%。

Therefore, besides soil and climate conditions, management practices occupied the majority of yield variability in Quzhou County, suggesting that the yield gap could be reduced significantly through optimum field management.

因此,除土壤和气候状况外,管理措施也是造成产量差异的重要因素,通过优化管理措施可以大大减小产量差异。

The optimum hydrolytic condition for crude drug was: zymolysis at 39℃for 72 hours, hydrolysis at 90℃with 5% sulfuric acid for 6 hours under natural pressure; The reserved time of diosgenin was about 10 minutes under its chromatograms conditions, and the R-value between the main peak and the nearby peak was bigger than 2, which means reaching the standard of chromatograms separation.

生药材的最佳水解条件是:在39℃恒温箱中发酵72 h,加硫酸至5%,90℃水浴中常压水解6 h。

The optimum reaction conditions were as follows: rosin 5 g, m: in: m 1:2:2, palladium chloride 0.090 %, n: n1:10, hydrogen pressure 5 MPa, reaction temperature 160℃ reaction time 3 h, mass fraction of abietic acid could be under 1%, mass fraction of dehydroabietic acid was 5.6%, which conforms to the national standards. The regeneration of catalyst was investigated. After cycling five times, the product of hydrogenated rosin still conforms to the national standards without any treatment of catalyst.

在松香5g、m:m:m1:2:2、氯化钯0.090%、n:nl:10、氢气压力5MPa,反应温度160℃,反应时间3h的较佳工艺条件下,产物氢化松香中极酸的质量分数小于1%,去氢枞酸的质量分数5.6%,符合GB/T 14020-2006国家标准;并对催化剂的重复使用性能进行了考察,催化剂相不经过处理直接重复使用5次后,产品氢化松香仍然符合国家标准中关于枞酸和去氢枞酸的指标要求。

The technology of extraction total alkaloids from the Abrus cantoniensis Hance was studied and the optimum ultrasonic extraction conditions were obtained through the orthogonal experimental design.

研究了鸡骨草总生物碱的超声提取工艺,通过正交试验得出了超声提取的最佳工艺条件。

In order to research the mechanism and effect of hydrodynamic cavitational enhancement, find the basic rule which affected it. The work has been carried out as following.First, an effective equipment of hydrodynamic cavitition is built. Second, we find a new method to capture the free radicals, which is used to measure the amount of hydroxyl. And its correlation with the intensity of cavitation has been studied aims at analyzing the effect of various factors on the yield of hydroxyl, achieving the optimum hydrodynamic cavitation conditions. Then, hydrodynamic cavitation is used to the degradation of organic wastewaters containing rhodamine B, and sterilization of biologic wastewaters containing enterobacter aerogenes. Finally, numerical simulation based on computer fluid dynamic has been made for verifying the effect of hydrodynamic cavitation theoretically.

为了探求水力空化强化效应的机制和效果,寻求影响空化强化效应的基本规律,本论文就此开展了如下研究工作:设计建立实用有效的水力空化实验装置;建立空化自由基捕捉新方法,并以此定量检测水力空化羟自由基,研究空化羟自由基产量与空化强度的关系,研究各种因素对空化自由基产量的影响,以寻求最佳空化强化条件;在此基础上,进行了水力空化对含罗丹明B有机废水降解处理、对含产气肠杆菌生物污水杀菌处理研究,实验检验水力空化的强化效果;根据计算流体力学理论对空化流场进行数值模拟,从理论上验证水力空化的发生效果。

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