查询词典 suppressive

Moreover, The influence of parameters, such as bracing stiffness, yielding displacement of the dissipater and different distribution of dissipating braces on the suppressive effectiveness of structure vibration is studied and some referential suggestion is presented for the design of passive energy dissipation system.

此外，本文还对耗能支撑减震参数(斜撑刚度、耗能器屈服位移)的改变以及耗能支撑的不同布置方式对结构减震效果的影响进行了分析，为摩擦耗能支撑框架的设计提供一些参考性建议。

The experiments may contribute not only to investigating the mechanism of interaction between ldiotype and anti -idiotype T cells by which immune network are up-regulated, but also to analysing the suppressive effect of anti -idiotypic T cell or antibodies against the antigens on the activated T cells in the allo-responsiveness.

本课题选用小鼠耳后心肌移植模型，用同种抗原特异的活化T淋巴细胞免疫同系小鼠的方法，诱导免疫小鼠同种心肌移植物存活时间的延长，以此探讨免疫网络中独特型-抗独特型相互作用机理，着重分析在同种抗原诱导的免疫应答中，抗独特型T细胞和抗活化T淋巴细胞抗原抗体对同种免疫反应的抑制作用。

Bacillus subtilis str. B5423, Pseudomonas fluorescens str. Pf7-14, nonfluorescent pseudomonads str. P13 are antagonistic to rice sheath blight. Resistance to antibiotic is the character that was chosen to use to mark the strains in order to monitor the population dynamics of the strain on the surface of rice plant and to elucidate the mechanism of suppressing the diseases.

中文题名拮抗细菌的生态学及其对水稻纹枯病的抑制作用副题名外文题名 Ecology of biological control agents and their suppressive effect on rice sheath blight 论文作者李湘民导师许志刚教授苗东华博士学科专业植物病理学研究领域\研究方向植物病害生物防治学位级别博士学位授予单位南京农业大学学位授予日期2002 论文页码总数116页关键词纹枯病拮抗细菌水稻馆藏号BSLW /2003 /S435 /19 Bacillus subtilis B5423，Pseudomonas fluorescens Pf7-14，和非荧光假单胞肝菌Pseudomonas sp.P13是对水稻纹枯病菌有拮抗作用的三支细菌菌株。

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。

AIM: To investigate the effect of phellodendron and three kinds of its main components, which have a suppressive effect on the immune system, on the membrane fluidity of normal murine splenocytes.

目的：观察具有免疫抑制作用的药物黄柏及其3种主要成分：小檗碱、药根碱与巴马汀对正常小鼠脾细胞膜流动性的影响。

MATERIALS AND METHODS: Cytotoxicity of the drugs was measured by MTT assay. The coefficient of drug interaction was used to analyze the synergistical suppressive effect of drug combination.

材料与方法：采用MTT法测定不同浓度氯化镉和顺铂对人肝癌细胞SMMC-7721增殖的抑制作用；应用两药相互作用指数进行联合作用分析。

Besides, the splenocyte culture supernatant(IL-2) of Trionyx sinensis increased obviously thymocyte proliferation,which was also neutralized by polyclonal anti-human IL-2 antisera,and eliminated the suppressive effect of rabbit anti-thymocyte antisera on thymocyte.

中华鳖脾细胞培养上清液(含IL-2)对中华鳖胸腺细胞也有较明显的促增殖作用并能消除兔抗中华鳖胸腺细胞血清对中华鳖胸腺细胞增殖的抑制作用。

On the basis of these theoretic methods, there are three different research conclusions to the problem mentioned above. The first one is the stimulative view, the second is the suppressive view and the third one is the unconspicuous view or the view that both effects existed.

在这些理论方法基础上，关于FDI与中国企业科技进步关系的问题，目前主要有三种不同的研究结论：一是发现有促进作用的研究结论；二是发现有抑制作用的研究结果；三是发现作用不明显或两方面作用都有的研究结论。

Results CT and HRCT had more sensitivity and specificity than X-ray chest film.There were more image manifestations in HRCT such as grand grass,net,line,nodular,honeycombing,bronchiectasis,honeycombing cyst,peribronchovascular interstitial thickening and irregularity.There were significant difference between them （P.05）.These patients who were suspected IIP had better control and remission after being treated with hormone and immuno-suppressive drug.

结果 胸部CT在诊断方面比常规胸片有较大的优越性，HRCT则有更高的敏感性和特异性，HRCT表现出磨玻璃影、网状、线条、小结节、蜂窝影，支气管扩张、细支气管扩张、支气管壁和血管壁增厚及不规则等征象，12例临床疑诊为间质性肺炎的患者，经胸部HRCT诊断的12例，而胸部平片诊断的仅有2例，二者比较差异有显著性（P.05），HRCT疑诊的IIP患者，经临床激素及免疫抑制剂治疗，病情均得到控制或缓解。

objective to compare image manifestations values between high resolution computerized tomography and x-ray chest film in idiopathic interstitial pneumonia in the elderly.methods we analysed and compared image manifestations between hrct and x-ray chest film with 12 cases of clinically suspected iip in the elderly.results ct and hrct had more sensitivity and specificity than x-ray chest film.there were more image manifestations in hrct such as grand grass,net,line,nodular,honeycombing,bronchiectasis,honeycombing cyst,peribronchovascular interstitial thickening and irregularity.there were significant difference between them （p.05）.these patients who were suspected iip had better control and remission after being treated with hormone and immuno-suppressive drug.conclusion it have more significant virtues in hrct to manifest iip in the elderly than x-ray chest film,and it also may manifest iip curative effect.

目的 比较高分辨断层摄影术、x线胸片检查对老年特发性间质性肺炎的诊断价值。方法对12例临床疑诊为间质性肺炎的老年患者，进行胸部hrct与胸部平片检查，并对照分析。结果胸部ct在诊断方面比常规胸片有较大的优越性，hrct则有更高的敏感性和特异性，hrct表现出磨玻璃影、网状、线条、小结节、蜂窝影，支气管扩张、细支气管扩张、支气管壁和血管壁增厚及不规则等征象，12例临床疑诊为间质性肺炎的患者，经胸部hrct诊断的12例，而胸部平片诊断的仅有2例，二者比较差异有显著性（p.05），hrct疑诊的iip患者，经临床激素及免疫抑制剂治疗，病情均得到控制或缓解。结论 hrct表现老年间质性肺炎的特点明显高于胸部平片，且hrct可以反映间质性肺炎的疗效。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。