最佳值

MAP is a kind of fertilizers which can be sold for reducing the expense of chemical precipitation method running. Though large numbers of experiments some kinetic parameters, including the value of pH, the relationship between the rate of ammonia-nitrogen removal and the ratio of reagents selected in reaction, reaction time and speed of whisking and so on were obtained.

在大量实验的基础上，通过对反应的几个动力学参数的详细研究，总结出了pH 值、反应药剂配比等与氨氮去除率的关系，并通过正交试验设计与单因素分析得出该方法在处理高浓度氨氮废水中最佳的工艺条件。

The sensitivity, specificity, positive predictive value, negative predictive value, Youden's index of three biomarkers were calculated.

以灵敏度为纵坐标，1-特异度为横坐标，分析ROC曲线，从而确定检测的最佳阈值。

The results were very successful.The removal rates of chromaticity and CODCr reached 96.56% and 94.46% respectively under the optimal conditions as follows:dosages of H2O2 and Fe2+ were 4.0g/L and 0.3 g/L respectively,microwave irradiation power was 500 W,and radiation time was 1 min.The investigation shows that the microwave irradiation,homogeneous Fenton oxid...

结果表明，微波-Fenton氧化-PASS混凝法适合于处理复杂垃圾渗滤液，在H2O2的质量浓度为4.0 g/L，Fe2+质量浓度为0.25 g/L，pH值为3.0，固定微波辐射功率500 W，辐照1 min，PASS质量浓度为25 mg/L的最佳条件下，出水色度仅15倍，脱色率和CODcr去除率分别达到96.86%和94.46%；微波辐射、Fenton氧化和PASS混凝沉淀结合处理垃圾渗滤液废水时具有较好的协同效应。

By acclimatizing culture of bacteria for 60 days, the removing rate of UDMH in the wastewater was 98% by active sludge treating. pH value, sludge concentration, temperatu...

活性污泥降解UDMH最佳条件为pH值7.0-7.5，污泥质量浓度1.60-1.28g/L、温度25-30℃、搅拌速度80-100r/min，UDMH质量浓度≤1580mg/L。

The iodine number of bamboo charcoals by three-step carbonization had the highest one and could be increased over 900 mg/g, even could reached over 1000 mg/g.

而竹炭降低COD之效果，则显示COD的降低率会随炭化次数增加而提高，此与碘值之变化趋势一致，以三阶段炭化竹炭的处理效果最佳，COD降低率最高可达54%。

As a result,nitrate was deoxidized into nitrite.It provides a new way to determine the concentration of nitrate in vegetable.Revivification efficiency was chose as investigation index in the paper.

以还原效率为考察指标，在单因素实验的基础上，通过正交实验研究了酶法还原蔬菜中硝酸盐的最佳反应条件为pH值为7，反应温度30℃，酶浓度200 u/L，NADPH浓度4 mmol/L，反应时间30 min。

Under the optimum conditions, the lactobacillus bulgaricus microcapsule was madeby single agglomerate, and precipitated the wall with located in rapeseed oil with 50%ammonium sulfate solution; The preliminary micro-emulsion filtrated, then drawsome microcapsule from the micro-emulsion and progressing the second emul-sification, injecting a mixture with 3% CAP and 1.5% gelatin into the micro-emulsion,and keep the stirring speed 200r/min for 5 minutes, adjusting pH as 3.0 with aceticacid, then desiccating with the spray drier after 30 minutes. At last, got the prodtictof microcapsule powder.

通过最佳乳化条件制备的乳液，采用单凝聚法制备保加利亚乳酸杆菌微胶囊，用50％硫酸铵溶液，使菜籽油中的壁材CAP析出，形成初步的微胶囊，过滤，取上层微胶囊油液，缓慢注入3％CAP和1.5％明胶混合液中，进行第二次乳化，在200r／min的搅拌速度下乳化5min，用冰醋酸调节乳液的pH值至3.0，固化30min，取乳液置于喷雾干燥机中进行喷雾干燥。

The relationship between coating microstructure and electromagnetic properties of electroformed Ni-Fe alloy s was studied.

研究了电铸镍铁合金制备过程中工艺条件对电铸层成分的影响，获得含铁质量分数20%电铸层的最佳工艺条件为镀液硫酸亚铁含量6g/L、pH值2.5、温度55℃、电流密度3.5A/ dm~2；讨论了镀层形貌及电磁性能的变化关系。

The results showed that the optimal fermenting condition was the 50% of water content,the 1% of...

结果表明，最佳发酵条件为含水量为50%、接种量为1%、添加辅料为麸皮、pH值为7.0。

The stability of immobilized ECE on pH, temperature and operation were improved.

固定化酯酶的最佳pH值和温度分别为10.5和50℃。

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％。