查询词典 activity coefficient

Trends of overground physiological and biochemical indexs are almost the same—weak soil Naphthalin pollution stress stimulate them,strong pollution restrain stress them. In the first two weeks of seeding stage weak soil Naphthalin pollution stimulate root activity,but soil Naphthalin pollution stress restrain root activity from the second week till jointing stage, In corn grouting stage soil Naphthalin pollution stress stimulate root activity.

部分的生理生化指标都有促进作用，而高浓度的土壤萘污染胁迫对玉米地上部分的生理生化指标有抑制作用；苗期的前两周低浓度土壤萘污染胁迫对玉米的根系活力有促进作用，苗期第三周到拔节期土壤萘污染胁迫抑制玉米的根系活力，而到了用营养生长到以生殖生长为中心的灌浆期土壤萘污染对玉米的根系活力有促进作用。

Pharmacological activity test in vitro All target compounds and PFT-αwere assessed for their ability in vitro to protect PC12 cells against H2O2 induced apoptosis through MTT methods. The results suggested that compound 3a, 3b and 3c have dual activity of neurotrophy and apoptosis inhibiting activity on oxidation stress damaged PC12 cell.

三、抗神经细胞凋亡实验对目标化合物都进行了体外药理活性试验：以H2O2为凋亡诱导剂损伤PC12细胞构建氧化应激损伤的凋亡细胞模型，用MTT法考察目标化合物对H2O2诱导的神经细胞凋亡的抑制作用。

The invention relates to a dyeing liquor used to discriminate the protozoan cell activity, a method to discriminate the protozoan cell activity and the application of the method to discriminate activity of nosema bombycis.

本发明属于细胞活力检测领域，特别涉及一种用于鉴别原虫细胞活力的染色液及一种鉴别原虫细胞活力的方法及该方法在鉴别家蚕微孢子虫活力中的应用。

Based on relative literatures,this part has included five resesearch aspects as below.1 Fifteen compounds were isolated and purified by extraction,column chromatography,and their structures were determined on the basis of spectral analysis: acteoside(Ⅰ-1),isoacteoside(Ⅰ-2),crenatoside(Ⅰ-3),cistanoside F(Ⅰ-4),sinapoyl-4-O-β-D-glucoside(Ⅰ-5),adenosine(Ⅰ-6),β-siterol(Ⅰ-7),oleanic acid(Ⅰ-8), succinic acid(Ⅰ-9),caffeic acid(Ⅰ-10),protocatechuic aldehyde(Ⅰ-11),p-hydro xybenzyl alcohol(Ⅰ-12),β-daucosterol(Ⅰ-13),D-galacitol(Ⅰ-14),D-mannitol(Ⅰ-15).Ⅰ-4～15 were obtained from this plant for the first time,andⅠ-6,7,9,and 13 were isolated from Orobanche genus for the first time.2 The scavenging test of DPPH showed that most compounds have comparative antioxidant activity as L-ascorbic acid and part of them show better activity such as the O.coerulescens extract and phenylethanoid glycosides.Acteoside showed potent free radical scavenging effects with a median inhibition concentration of 25.6μg/ml.3 The anti-HBV activities of acteoside,isoacteoside and crenatoside were measured,and all of them showed suppressive activity on the expression of HBsAg and HBeAg in the HepG2.2.15 cell line.

本论文在文献调研基础上对紫花列当化学成分及生物活性进行了研究，并从免疫抗病毒角度探讨紫花列当中特征性成分类叶升麻苷的肝保护作用及其机制。1采用大孔树脂、硅胶和Sephadex LH-20等色谱技术对紫花列当进行系统的植物化学研究，从中分离得到19个化合物，利用UV和NMR等波谱手段及理化性质鉴定了其中的15个化合物，分别为类叶升麻苷(Ⅰ-1)、异类叶升麻苷(Ⅰ-2)、crenatoside(Ⅰ-3)、cistanoside F(Ⅰ-4)、sinapoyl-4-O-β-D-glucoside(Ⅰ-5)、腺苷(Ⅰ-6)、β-谷甾醇(Ⅰ-7)、齐墩果酸(Ⅰ-8)、琥珀酸(Ⅰ-9)、咖啡酸(Ⅰ-10)、原儿茶醛(Ⅰ-11)、对羟甲基苯甲酸(Ⅰ-12)、β-胡萝卜苷(Ⅰ-13)、D-半乳糖醇(Ⅰ-14)和甘露醇(Ⅰ-15除化合物Ⅰ-1、Ⅰ-2和Ⅰ-3外，其余化合物均为首次从该植物中分离得到。2)通过大孔树脂富集该药材有效部位苯乙醇总苷，并采用HPLC测得其所含特征性成分类叶升麻苷的含量可达80%以上。3DPPH自由基清除试验显示紫花列当提取物及其所含的苯乙醇苷类化合物均具有较好的抗氧化能力，其清除DPPH自由基能力接近于抗坏血酸。4采用卡介苗整体致敏、脂多糖离体攻击构建大鼠原代肝细胞免疫性损伤模型，在体外观察类叶升麻苷的保肝作用。

The secondary root number per plant of Yumai No 49,a mi d-s trength quality wheat,is the smallest among the three varieties except the winte r stage but its root system quality is the best;the intensity of reducing TTC an d the activity of SOD of fresh wheat root are the highest during the period fro m winter stage to flag leaf stage.Since flag leaf stage,its physiological charac ters are weaker and have bigger variation during whole stage.The secondary root number per plant of Yumai No 50,a soft quality wheat,is the biggest except duri ng winter stage,and its dry weight of root of single plant is the heaviest in ev ery stage.Before 19th,March,its intensity of reducing TTC is the weakest and dec reases abruptly after flag leaf stage,but its activity of SOD decreases slowly.R oot dry weight per plant of Yumai No 34,a high quality wheat,is the smallest amo ng the three varieties and its root system quality is the weakest.Before jointin g stage,the intensity of reducing TTC is stronger,but after that,it decreases sl owly though it is smaller,and the activity of SOD decreases slowly in every stag e.

中筋小麦豫麦49号除越冬初期外，其它各时期单株次生根条数均为最少，单株根干重介于豫麦34号及豫麦50号之间，单根质量高；越冬初期至挑旗期，根系活力、根中SOD活性均强于其它两个品种，挑旗后，根系生理活性较小，整个生育期根系生理活性变化幅度大；弱筋小麦豫麦50号除越冬初期外，其它各时期单株次生根条数均最多，单株根干重各时期均为最大；拔节前根系活力最弱，挑旗后根系活力下降幅度较大，根中SOD活性较强且各时期变化幅度不大；强筋小麦豫麦34号，单株根干重最小，根系质量最差；拔节前根系活力较强，拔节后根系活动较弱，下降速度缓慢，根中SOD活性各时期变化幅度较小。

The activity of glutamate-pyruvate transaminase andglutamic oxalacetic transaminase was measured using AU5400 automaticbiochemical analyzer; the activity of the hyaluronic acid,the laminin,precollagen typeⅢ type, collagen typeⅣ was evaluated according toradioimmunoassay method; the activity of transforming growth factor beta-1(TGFβ1)and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) was measured according to enzyme linked immunosorbent assay. Results First, the effect of Baoganning on CCL_4 induced hepatic fibrosis in rats.

研究结果一、保肝宁对四氯化碳(carbon tetrachloride CCL_4)复合因素致大鼠肝纤维化模型的作用： 1、与正常组动物血清相比，模型组动物血清中的ALT、AST、HA、LN、PCⅢ、CⅣ、TGFβ1、TIMP-1显著升高(P＜0.05)；与模型组相比，保肝宁高、中、低剂量组血清中的ALT、AST、HA、LN、PCⅢ、CⅣ、TGFβ1、TIMP-1显著降低(P＜0.05)；秋水仙碱组、复方鳖甲软肝组动物血清中上述指标呈不同程度的下降趋势。

Objective:To produce low-sugar and high-moisture preserved pachyrhizus; Methods:The relationship of moisture and water activity, numbers of bacterial and mildew were researched. Then water activity was reduced by chitosans with different viscosity-average molecular weights; Results:The number of mildew was a major microbial index of quality-maintaining duration of product. The lower viscosity-average molecular weights of chitosans was, the more water activity reduced; Conclusion:When 9 kD molecular weight,...

目的：为生产低糖、高水分含量番薯果脯；方法：研究果脯中水分含量与水分活度的关系及细菌总数和霉菌数在保温试验中的变化，并采用不同黏均分子量的壳聚糖降低果脯的水分活度；结果：果脯中霉菌数是影响产品保质期的主要微生物指标，壳聚糖的黏均分子量越低，降低水分活度的幅度越大；结论：通过添加0.5%、9kD黏均分子量的壳聚糖，产品水分含量为20%、总糖为26%时，番薯果脯常温放置保值期达到12个月。

The biological tests indicate that most of the compounds synthesized have herbicidal activity in a certain degree and several compounds show certain bactericidal activity. Further anti-ALS enzyme test shows that two kinds of novel phosphonic ureas have good anti-ALS enzyme activity.

对合成的部分化合物进行了初步的生物活性测定，所设计的大部分化合物都显示出一定的除草活性，有的具有一定的杀菌活性；对两类膦酰脲化合物进行了离体ALS酶抑制试验，结果表明它们是很好的ALS酶抑制剂，同磺酰脲相当，有希望作为另一类ALS酶抑制剂的先导化合物。

The results of the physiological and biochemical indexes in callus tissue of Poncirus trifoliata tested under calcium carbonate(CaCO3) stress indicated that except total iron content, the negative correlations among CaCO3 concentration and peroxidase activity, superoxide dismutase activity, catalase activity, active iron content, soluble protein content and callus growth were recorded.

提要测定碳酸钙(CaCO3)胁迫下枳壳愈伤组织的某些生理生化指标的结果表明：除全 Fe 含量外，CaCO3浓度与过氧化物酶活性、超氧化物歧化酶活性、过氧化氢酶活性、活性Fe含量、可溶性蛋白质含量、愈伤组织增重均呈显著或极显著负相关，与培养液pH值呈显著正相关；随着培养的进程， POD活性、活性Fe和可溶性蛋白质含量、愈伤组织增重呈降低趋势， SOD和CAT活性先升后降，含高浓度CaCO3的培养液 pH值仅在20日左右略有降低。

All PPO activity could strongly catalyze oxidative activity of pyrogallic acid, but they were very weak for the oxidative activity of chlorngenic acid.

不同杨桃品种的PPO活性有很大差异，蜜丝甜杨桃PPO对焦性没食子酸的氧化活性明显高于其他品种，而酸杨桃PPO活性极弱。

He got into race cars, while my father liked go-karts more, so I didn't really pay attention to what Diego was doing, as I was just racing karts.

叔叔开的是跑车，而我父亲更喜欢越野卡丁车，所以我并不太关注Diego在做什么，我仅仅在跑我的卡丁车而已。

She is at present gone to look for the best nectar and ambrosia to regale me this evening.

她今晚为款待我，现在又去准备美酒佳肴去了。