研究人员称，尚不清楚人们是否可以通过食用足够量的姜黄素以达到活性浓度，但他们称通过注射双去氧基姜黄素而很容易达到活性浓度。
The researchers said it is not clear if people can eat enough curcumin to get this level of activity, but said bisdemethoxycurcumin was active at a level that could easily be achieved by infusion.
医生很早就知道，某些抗抑郁药物可以降低他莫昔芬在血液中的活性成分浓度。
Doctors have long known that some antidepressants and other medicines can lower the amount of tamoxifen's active form in the bloodstream.
研究结论证实MPS(多磺酸粘多糖)不但能透皮吸收，而且其活性成分能在各真皮亚层达到有效的治疗浓度。
The results not only confirmed the absorption of MPS but also showed that the active ingredient reaches the individual dermal layers in therapeutic effective concentrations.
第二部分则主要研究了驯化活性污泥对高盐度、高金属离子浓度的实际废水的处理过程。
The other is the study of domesticated activated sludge disposing wastewater containing high salinity and high concentrations of metal irons.
随着乙腈浓度进一步升高，木瓜蛋白酶活性不断降低。
With the acetonitrile concentration increasing, the activity of papain reduced constantly.
此技术组合生产的酶蛋白的表达量、酶活性和比活性，均显著高于其他浓度和时间的处理。
Prepared with this combination, the enzymic protein expression, enzyme activity and activity ration are significantly higher than other treatments of concentration and time.
本文从土壤微生物群落结构、微生物区系、土壤呼吸、微生物生物量以及土壤酶活性方面对大气高浓度CO2的响应进行了综述。
In this paper, the effects of elevated CO2 on soil microbial community structure, soil microflora, soil respiration, soil microbial biomass, and soil enzyme activities were summarized.
不同处理的不同浓度对保护酶活性和MDA含量影响不同。
The effects of SOD and POD activity and MDA amount are different between different treatments.
引发剂用量增加使得体系中活性中心浓度增加因此共聚物的产率上升；
The concentration of active center increases with the increase of dosage of initiator, so the yield of copolymer increase.
微生物的比耗氧率活性与底物浓度及负荷率有关。
The SOUR activity of microorganism was related to organic concentration and loading factor.
在油菜根中，过氧化物酶(pod)活性随供铁浓度的提高而降低。
In the rape root, the activity of peroxidase (POD) decreased with the rising of iron concentration.
研究了驯化过程中菌体存活率、比死亡速率和腈水合酶活性随丙烯酰胺浓度的变化。
The survival rate, specific death rate and nitrile hydratase activity of cells as the function of acrylamide concentration during the process were investigated.
只有当催化剂表面的活性相浓度控制在适当的范围，催化剂才表现出最佳的催化行为。
The optimal catalytic performance could be obtained by adjusting the surface concentration of active phase within a proper range.
而且与模拟油形成的表面活性剂富集中间相的表面活性剂浓度非常高。
The surfactant concentration of the surfactant enrichment medium phase formed with simulated oil is higher.
采用凝胶转化率曲线法和表干时间法，从MI的结构和浓度、活性稀释剂、助剂和树脂等方面对MI引发的光固化进行了研究。
The effects of MI structure and concentration, reactive diluents, additives and resins on photo curing initiated by MI were studied by the gel conversion and photo-curing rate.
研究了活性炭种类、上样速率、吸附剂种类及其浓度等条件对产品质量和收率的影响。
The effects of activate carbon, in-flux rate and adsorbent on the quality and yield of product were studied.
肠道菌把我们摄入的化学物质转变成有益的、无害的或者是有害的化合物，因而可以影响人体接触的具有药物活性的化合物的浓度水平。
The gut inhabitants transform chemicals we consume into beneficial, harmless, and harmful compounds, thereby influencing the level of human exposure to pharmaceutically active compounds.
测量的化学需氧量和浓度的阴离子表面活性剂是用来跟踪氧化。
Measurements of the Chemical Oxygen Demand and the concentration of the anionic surfactants were used to follow the oxidation.
去甲麦普替林、活性部分的浓度高于阈浓度时，会增加出现不良反应的可能。
When the concentrations of N-demethylmaprotiline and active moiety are higher than threshold concentration, the possibility of side effects may be increased.
研究了不同浓度乙醇对土壤转化酶活性的影响以及不同底物(蔗糖)浓度对乙醇与转化酶活性关系的影响。
Effect of ethanol concentration on the soil invertase activity and effect of different substrate (saccharose) concentrations on the relationship between invertase activity and ethanol were studied.
观察了表面活性剂sds浓度的影响。
The effects of surfactant (SDS) concentrations were also investigated.
进而，利用饱和分数与抗冻活性之间的关系，给出抗冻活性与抗冻蛋白浓度的理论关系。
The theoretical relations between the antifreeze activity and concentration of antifreeze protein are given by using of the relation between the saturation fraction and antifreeze activity.
甲酸浓度、活性炭加入量、过氧化氢初始浓度及温度对噻吩硫的氧化脱除均有影响。
Formic acid concentration, activated carbon dosage and initial hydrogen peroxide concentration, reaction temperature affect the oxidative removal of thiophene.
土壤酶活性主要受底物浓度变化的影响。
Soil enzyme activity was mostly affected by substrate concentration.
结论：稀土离子在较低浓度时都能抑制活性氧自由基的生成。较高浓度时，作用相反。
Conclusion: Lanthanide ions can inhibit the production of active oxygen free radicals at low concentration, but it turned out contrary at high concentration.
为了充分发挥药剂对害虫的防治效果，药液中表面活性剂的浓度必须大于临界胶束浓度。
For good effectiveness to pests, the concentration of surfactant in the liquid insecticides with conventional concentration must be more than the CMC.
为了充分发挥药剂对害虫的防治效果，药液中表面活性剂的浓度必须大于临界胶束浓度。
For good effectiveness to pests, the concentration of surfactant in the liquid insecticides with conventional concentration must be more than the CMC.
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