还原时间

The effects of some factors, such as reaction temperature, reaction time, substrate concentration and yeast concentration, on the acetophenone conversion and- 1-phenylethanol enantioselectivity were investigated by orthogonal experiments.

研究了酵母细胞催化芳香酮的不对称还原反应，采用正交试验综合考察了反应温度、反应时间、底物浓度和酵母浓度等因素对底物苯乙酮转化率和产物1苯基乙醇对映选择性的影响。

The reductive degree of laterite mine can heat through adjusting the scale that joins carbolic white and microwave time will control.

红土矿的还原程度可通过调整加入碳粉的比例和微波加热时间来控制。

In order to enhance the convergence rate of recovered signal, we apply the decay rate approach to design the T-S fuzzy controller.

为了减少还原明文信号的时间，提出衰减速率的概念，使系统稳定时间缩短。

The reduction of oxime was investigated and the 17-amino steroid was obtained via reduction with Ni-Al alloy in yield of 85~90%.

本文尝试了六种将肟还原成胺的方法，发现在氢氧化钠溶液存在下用镍-铝合金还原甾体肟化合物，反应条件温和，反应时间短，产品收率85～90%。

Simultaneously it ensures small degree thermic and mechanic regulators fatiguing in the duration of time.

同时它可以确保小热还原度和机械调节时间，在时间疲于奔命。

By calculating theoretically and testing, Topgallant void ratio of gas grid was determined.At high temperature,the charge material was suspending in gas bed,experiments of different magnetizing roasting temperature and roasting duration have been run by leading to reductive atmosphere containing CO.

在高温条件下，通入含CO还原气体，使物料处于悬浮状态，进行了不同磁化焙烧温度及时间试验，查明在650℃～760℃，焙烧时间10～60秒内，可以使菱铁矿(FeCO_3)、赤铁矿(Fe_2O_3)快速转变为磁铁矿(Fe_3O_4)。

The characteristics of grain growth of metallic phase in direct reduction of high phosphorus oolitic hematite by carbon are discussed in the paper.

研究鄂西高磷鲕状赤铁矿直接还原过程中金属铁颗粒的长大特性，并着重讨论还原温度、渣相碱度及反应时间对铁颗粒长大的影响。

AMs that collected, pured and cultured with contine method were stimulated by LPS of different concentration(0μg/ml,0.01μg/ml,0.1μg/ml,1μg/ml,10μg/ml) for 60min or by 1μg/ml LPS for different time stage (0min,5min,15min,30min,60min,120min) to observe the dynamic change of NF-кB intranuclear level and NO production, from which the best concentration and time point of LPS stimulation were selected. In the study, all AMs were divided into 4 groups: control group, group stimulated with LPS, group interrupted by Cal C and group inhibited by PDTC. The following parameters were measured: NF-кB level in nuclear protein extraction of AMs detected with sandwich ELISA, Inter-nuclear transposition of NF-кB observed with immunocytochemistry staining, NO content in cell culture medium quantitied with nitric acid reductase assay, Morphologic change of AMs in apoptosis observed with acridine orange staining and fragmentation at genome DNA of AMs detected with apoptotic electrophoresis assay.

分离、纯化及培养大鼠肺巨噬细胞；以不同浓度的LPS(0μg/ml，0.01μg/ml，0.1μg/ml，1μg/ml，10μg/ml)和不同作用时间(0min，5min，15min，30min，60min，120min)分别刺激小室培养的细胞单层，观察NF-κB的核内浓度及NO合成量的动态变化，选择LPS的最佳用量和作用时间；然后分成四组实验，设正常对照组，LPS处理组，特异性PKC抑制剂阻断组，NF-κB抑制剂阻断组；收集培养的单层细胞及培养液；采用夹心ELISA法定量测定细胞核提取物中的NF-κB水平；免疫组化法检测NF-κB的核内移位变化；硝酸还原酶法测定细胞培养液中NO含量；吖啶橙染色观察凋亡细胞的形态学变化，凋亡电泳实验检测细胞凋亡后基因组DNA的断裂情况。

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。

At certain temperature and hydrogen flow rate, the weight changing of tungsten trioxide during the reduction was investigated by thermo balance, and the phase transformation analyzed by means of XRD.

在一定的温度和氢气流量条件下，用热分析天平精确测量WO3 还原反应过程中，不同时间的质量变化，并用X射线衍射分析进行物相鉴定，绘制纳米级WO3 (粒径≤ 5 0nm)的还原动力学曲线。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。