查询词典 surface active agent

25% arketai water dispering agent, 70% imiler water dispering agent, 4.5% high active cypermethrin emulsifiable solution and 20% haoniandong emulsifiable solution had strongest toxic effect on Coccinella septempunctata. 10% liuyangmycin and 1.1% matrine powder had weakest toxic effect, which should he avoided in production.

结论］25%阿克泰水分散剂、70%艾美乐水分散剂、4.5%高效氯氰菊酯乳油和20%好年冬乳油对七星瓢虫的毒杀作用最大，生产中应尽量避免使用。10%浏阳霉素和1.1%苦参碱粉剂的毒杀作用最小。

The stabilities of the extract from sanguisorba under different pH, light, heat, ultraviolet ray, oxidant, reducing agent and additive agents were studied. It was indicated the products could widely used in the condition of weak acid or neutral, while they were not stable to heat and light, so they should be used without light and at low temperature. The products had a strong ability to withstand ultraviolet ray. They could easily be oxidized and degraded by oxidant while they were not easily affected by reducing agent and were almost not affected by additive agents. The extract from the stem of sanguisorba was analyzed by UV and FTIR, showing that the structures of the active components were not changed during ultrasonic wave extracting.

研究了pH值、光、热、紫外线、氧化剂、还原剂以及添加剂对地榆提取物稳定性的影响，结果表明地榆提取物适合弱酸或中性条件下使用，使用范围比较广；但对光热稳定性较差，适合在避光低温的环境；具有很强的抗紫外线能力；氧化剂对地榆提取物稳定性影响较大，会加速其降解，还原剂对地榆提取物影响不大；其他添加剂对其稳定性几乎没有影响；并通过UV和FTIR光谱分析，超声波浸提没有对地榆根茎中有效成分的结构发生改变。

In order to enhance the miscibility between the inorganic and the organic phases,the silanol coupling agent is made from the slane VTMS and the colloid silica. Then the silanol coupling agent and nano-particles of ZnSb2O6 as the conductive filler are successfully bonded and the nano-particles of ZnSb2O6 will become more organic-like. The colloid silane-SiO2-ZnSb2O6 precursor solution is subsequently mixed with a homogeneous lsopropylalcohol solution of SR-399 acrylic monomers (Dipentaerythritol pentaacrylate) and the active free radical agent709. Under nitrogen purging, this reaction solution prepolymerize at 60℃. Then, the solution is spin-coated with the spin coator at room temperature. At last, the coated thin film is cured and crosslinked by the UV curing reactor to form the highly transparent thin film with good optoelectronic properties from hybrid organic-inorganic nano-composite.

首先以矽氧烷VTMS和colloid silica制备矽氧偶合剂，再以此偶合剂对分散於异丙醇溶液之奈米级的colloid ZnSb2O6做有机化改质，以增进其与有机高分子基材的键结相容性，我们将此colloid silane-SiO2 - ZnSb2O6前驱物与SR-399有机基材单体(Dipentaerythritol pentaacrylate)的异丙醇溶液与活性自由基光起始剂709均匀掺混后，在充满氮气反应系统下，加热至60℃进行预聚合反应，接著在室温下以旋转涂布机旋转涂布成厚度均匀薄膜，最后将此薄膜直接高温硬化或以UV硬化机网状键结硬化成透明与具部份导电性等光电特性之无机/有机奈米混成薄膜。

Uses in the paint, the printing ink, the varnished cloth coloration, the printing industrial used dye printing reserving agent, uses in the neutral cowhide glue in the matches industry the acidity, increases the gummy effect, the pharmaceutical industry serves as the adhesive plaster raw material, in addition also uses in the pigment zinc chrome yellow, the zinc acetate, the zinc carbonate, the zinc chloride and so on manufacture, the synthesis methyl alcohol catalyst, the synthetic ammonia sweetening agent, the glass and glazes the production, the pellet thin active zinc oxide (about particle size 0.1um) may serve as plastic and so on polyolefine and polyvinyl-chloride light stabilizers, the zinc oxide also uses in pressing, the photochemical catalysis, the electro-optic sensitively extremely, domains and so on coating, color television development.

用于油漆、油墨、漆布的着色，印染工业用的印花防染剂，在火柴工业中用于中和牛皮胶的酸性，增加胶粘效果，医药工业用作橡皮膏的原料，此外也用于颜料锌铬黄、醋酸锌、碳酸锌、氯化锌等的制造，合成甲醇的催化剂，合成氨的脱硫剂，玻璃和釉料生产，颗粒细的活性氧化锌（粒径0.1um左右）可用作聚烯烃和聚氯乙烯等塑料的光稳定剂，氧化锌也用于压敏、光催化、光电极、涂料、彩电显影等领域。

To explore new synthetic methods, we set out a careful investigation of the reaction of benzimidazolium salt with many nucleophilic agents, including the active aromatic compounds and heteratom nucleophilic agents, and found that the quaternary C=N is not so active; when benzimidazolium salt is reacted with big nitrogen nucleophilic agent? phthalimide, it does not give the expected addition product, instead, produces N-alkyl phthalimide through alkyl-transfermation from benzimidazolium salt to phthalimide.

为了开发新的合成方法，研究了苯并咪唑盐与各种亲核试剂（活泼芳环与杂原子亲核试剂）的反应，发现苯并咪唑盐不与活泼芳环及杂原子亲核试剂发生2位加成反应；在与体积较大的位阻型N亲核试剂邻苯二甲酚亚胺反应时，未得到亲核试剂与极化的C＝N的加成产物，而是得到N烷基化的邻苯二甲酰亚胺，进一步研究表明，苯并咪唑盐将1（3）位N上的烷基转移给了邻苯二甲酰亚胺，并讨论了其反应机理和取代基，溶剂效应。

The result shows, grass of Sikkim small hole is temporary decline Yan period with permanent decline water content of Yan period soil is respectively 7.06% be in temporary decline with 6.20%; the Sikkim of Yan period is small after water of Kong Cao answer bibulous and rapid, decline Yan condition is eliminated gradually, appearance of aftertreatment group of answer water 6 H and contrast active of basic consistent;SOD is during threatening processing with markedder than notting have to taking a picture change, the ascendant;CAT that there is certain range after answer water and POD active are in threatening during after rising first, drop, all remarkable prep above contrasts level, and the active;MDA content that still keeps taller after answer water as the extension of time of arid and threatening processing mushroom, to threatening the 8th climate reachs maximum, content of the MDA in the lamina after answer water drops quickly, arrive the 5th day after answer water, content of the MDA in threatening group lamina is adjacent already contrast level.

结果显示，锡金微孔草暂时萎焉期和永久萎焉期土壤含水量分别为7.06%和6.20%；处于暂时萎焉期的锡金微孔草复水后吸水迅速，萎焉状态逐渐消除，复水6 h后处理组外貌和对照基本一致；SOD活性在胁迫处理期间和对照相比无显著变化，复水后有一定幅度的上升；CAT和POD活性在胁迫期间先上升后下降，均显著高于对照水平，且复水后仍然保持较高的活性；MDA含量随着干旱胁迫处理时间的延长而迅速增加，到胁迫第8天时达到最大值，复水后叶片中MDA含量迅速下降，到复水后第5天，胁迫组叶片中MDA含量已接近对照水平。

Active oxygen is found to be involved in apoptotic progress affected by exogenous SOD and measurement of SOD in cell sap. Arsenic compounds cause a decrease of SOD in cell. It is exactly the decrease that make plenty of active oxygen gather in mitochondria, and starts the apoptotic progress. The analysis of SOD values shows that active oxygen has an effect on apoptosis.

通过加入外源性SOD和对胞液SOD的测量，发现胂化物引起细胞凋亡的过程，有活性氧的参与，并且胂化物还导致细胞内SOD值的减少，正是由于这种降低，才导致了细胞内特别是线粒体中活性氧大量聚集，启动了细胞凋亡过程，通过对SOD值的分析，证明了活性氧在细胞凋亡中的作用。

The interactions among the three active sites---N3, 04 and 05 in the most stable conformer of glycine and the three mono-value cations--~ Li~ and Na~ are investigated at the R0B3P86/6-3 1 G* level. Their relative binding strength and the binding order are compared and analyzed when the same active site reacts with three different cations or the same cation reacts with three different active sites, respectively.

利用限制性的DFT方法和6-31G基组函数，考察了甘氨酸的最稳定构象中的三个活性位：N3、O4和O5与单价阳离子H~+、Li~+和Na~+相互作用的情况，比较分析了三活性位与同一阳离子相互作用时的相对强弱和同一活性位与三个不同阳离子作用时的成键顺序。

In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.

本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应，由于溴代苯乙酮是含有羰基的卤代烃结构，它可以发生亲电取代和亲核加成反应，当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时，控制反应条件可以发生单取代和双取代两种产物；当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时，溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物，这在以前的研究中是没有发现的。

Additional pathologic findings included: chronic peptic duodenitis (6 out of 17, 35%), active duodenitis (1 out of 17, 6%), and celiac-like features (2 out of 17, 12%) in the duodenum; chemical gastropathy (3 out of 18, 17%), active chronic gastritis without Helicobacter pylori (2 out of 18, 11%), and erosion (1/18,6%) in the stomach; reactive epithelial change (3 out of 7, 43%), active esophagitis (3 out of 7, 43%), ulceration (2 out of 7, 29%), and erosion (1 out of 7, 14%) in the esophagus. Serum MPA levels were available in 7 patients, 6 of whom had abnormal duodenal apoptotic counts.

其他病理特点包括：十二指肠：慢性消化性十二指肠炎（17例中有6例，35%）、活动性十二指肠炎（17例中有1例，6%）和乳糜泻样特征（17例中有2例，12%）；胃：化学性胃病（18例中有3例，17%）、慢性活动性胃炎且无HP感染（18例中有2例，11%）和糜烂（18例中有1例，6%）；食管活检：反应性上皮改变（7例中有3例，43%）、活动性食管炎（7例中有3例，43%）、溃疡（7例中有2例，29%）和糜烂（7例中有1例，14%）。7例患者提供了其血清MPA浓度，其中有6例的十二指肠细胞凋亡计数异常。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。