最佳值

Chelate fiber with amidoxime group,which is obtained from chemical modification of PAN fiber,is treated with mercury nitrate to prepare anion-exchange fiber.The optimum conditions of the anion-exchange fiber absorption of the thiocyanate ion,such as ion concentration,time,the pH value were studied.

以聚丙烯腈纤维进行NH2OH化学改性制得的含有偕胺肟基的螯合纤维为原料，经Hg(NO3)2化学处理，制得阴离子交换纤维；并以硫氰酸根离子为研究对象，系统地探讨和研究了阴离子交换纤维吸附硫氰酸根离子的最佳条件参数：离子浓度、时间、pH值等。

During the process of accumulating phosphorus the best pH value is 7.0 under anoxic condition.

在积累磷的过程中最佳的PH值是7.0在缺氧情况下。

Uses the strong sulfuric acid anthrone determination kelp polysaccharide the content, mainly uses the single factor experiment definite orthogonal experiment, makes the microwave radiation time, the liquid-solid separately compared to, the ph value as well as the extraction temperature to the kelp polysaccharide extraction quantity influence, determines the best experimental condition again by the orthogonal experiment.

采用浓硫酸蒽酮测定海带多糖的含量，主要利用单因素试验确定正交实验，分别做出微波辐射时间、固液比、ph值以及提取温度对海带多糖提取量的影响，再以正交实验来测定最佳实验条件。

According to the kinetics analyze, the aerobic biodegradation was approximatively first order reaction.

污泥的降解偏二甲肼最佳条件为pH 值7.0～7.5、污泥浓度1.6～1.28g/L、温度在25～30℃、搅拌速度在80～100r/min。

Through computer simulation of azeotropy rectification dehydration tower with benzene as entrainer, the optimal technical parameters were obtained as follows:①the output quantity of top tower was 69 kg／h, return benzene phasor as 58 kg／h and reflux ratio as 3, alcohol concentration in charge the higher the better, however, its maximum value influenced by water content at azeotropy point;②sensitivity analysis results indicated that the sensitivity of output quantity of top tower was the highest, alcohol concentration in charge the second and return benzene phasor and reflux ratio the lowest.

对以苯作为夹带剂的共沸精馏脱水塔进行了计算机模拟，得到了最佳工艺参数：①塔顶采出量为69 kg／h，返回苯相量为58 kg／h，回流比为3，进料乙醇浓度越高越好，但其最大值受共沸点水含量的影响。②敏感性分析的结果为塔顶采出量的灵敏度最大，进料乙醇浓度次之，而返回苯相量和回流比较小。

After taking into account the economic factors of pulp yield and bleachability, active alkali charges of 17.5% to 25.0% were applied in a typical kraft cooking which provides yields of 43.6% to 30.5%, with kappa numbers ranging from 28 to 10. The optimal cooking conditions called for an AA of 20.0% to 22.5%.

考量纸浆收率及漂白性等经济成本因素，二年生之白千层经17.5%~25.0%之活性碱蒸煮后，其纸浆收率约在43.6%~30.5%，卡巴值为28~10，最佳蒸煮条件之用碱量以20.0%~22.5%为宜。

Rhytidiadelphus triquetrus, Abies nephrolepis and Ass. Calamagrostis angustifolia, Carex schmidti. The mentioned associations provided the most suitable habitat for Valeriana amurensis.

结果显示：拟垂枝藓、臭冷杉林和小叶章、臌囊苔草沼泽中黑水缬草的重要值较大，分别为49.9%和49.1%，即黑水缬草生长的最佳生境为拟垂枝藓、臭冷杉林和小叶章、臌囊苔草沼泽生境。

Cotton and silk fabrics were dyed with natural carminic acid after the Iron ion pre-mordant treatment. The K/S values of the fabrics were characterized. The single factor process experiments were carried out for mordant concentration, temperature and time. The optimal process parameters were mordant concentration cotton: 1×10^(-3mol/L and 10 min at 90℃; silk: 1×10^(-3)mol/L and 10 min at 40℃.

将铁离子前媒染处理后的棉、丝织物采用天然染料胭脂虫酸进行染色，以染色织物的K/S值进行表征，对媒染剂浓度、温度、时间3个因素进行了单因素工艺实验，得到了铁离子前媒染棉、丝织物的最佳工艺参数（棉：1×10^(-3)mol/L， 90℃，10分钟；丝：1×10^(-3)mol/L， 40℃，10分钟）。

Investigation of the Iron Ion Pre- mordant Process in the Dying of Natural Dyes;2. Study on cotton fabrics ecological dyeing process with cork tree bark based on loess mordant ;3. Cotton fabrics were dyed with natural carminic acid after the Ti ion pre- mordant treatment.

将钛离子前媒处理后的棉织物，采用天然染料胭脂虫酸进行染色，以棉织物的K/S、H*值进行表征，对媒染剂浓度、温度、时间3个因素进行了单因素工艺实验，得到了钛离子前媒处理的最佳工艺参数(媒染剂浓度9×10-3 mol/L，50℃，40 min)。

The findings of this study demonstrate the presence of enzymes in S. Japonicum, which are able to catabolize the heme.

成虫匀浆抽提物体外降解血红素的反应对pH值有依赖性，HO和BR反应的最佳pH环境均为pH 8.7。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。