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Trichogramma showed high control efficacy on cotton bollworm eggs after three times of release both in the second and in the third generation bollworm periods. The parasitism on the second and third generation bollworm eggs were 66.0%-70.7% and 76.0%-81.2%, respectively, which were significantly higher than that in the control (second generation: 7.0%-12.3%, third generation: 5.2%-7.4%). And the injury rate of cotton buds and bolls in the second and third generation bollworm were 2.2% and 3.1%, respectively, which were significantly lower than that in the control (second generation:8.5%, third generation: 20.9%). In the second generation bollworm period, number of bollworm eggs or larvae in the Trichogramma released cotton field did not differ to that in the chemically controlled field. But in the third generation, there were significantly less bollworm eggs and larvae in the Trichogramma released cotton field. There were more predators in the Trichogramma released cotton field. These results indicated that cotton boll worm in the transgenic insect-resistant cotton field can he effectively controlled by mass-releasing of T.

结果发现:棉铃虫卵在棉株不同部位的分布差异较大,2代棉铃虫卵主要分布在叶正面、叶背面和茎尖,3代棉铃虫卵主要分布于蕾铃;在放蜂田,赤眼蜂对棉株不同部位棉铃虫卵的寄生率差异较大,2,3代棉铃虫时期对叶正面、叫背面、茎尖、蕾铃的棉铃虫卵寄生率均较高,对叶柄和茎杆处卵的寄生率较低;并以3代棉铃虫时期的寄生率较高;在2,3代棉铃虫时期分别连续释放3次赤眼蜂,对棉铃虫具有很强控制作用,2,3代棉铃虫卵的被寄生率分别为66.0%~70.7%和76.0%~81.2%,均显著高于化防田的自然寄生率(2代:7.0%~12.3%,3代:5.2%~7.4%);蕾铃被害率分别为2.2%和3.1%,均显著低于化防田(2代:8.5%,3代:20.9%;2代棉铃虫时期,放蜂田和化防田的棉铃虫卵量和幼虫数量差异均不显著,但3代棉铃虫以后,放蜂田棉铃虫卵量和幼虫数量均显著低于化防田,且放蜂田的捕食性天敌数量显著高于化防田。

So the process is offered using isomerization with separation. 1,2,4-trimethylbenzen is converted to 1,3,5-trimethylbenzen by isomerization. By means of precise distillation mesitylene is separated from products of isomerization as much as possible with high purity. 1,2,4-trimethylbenzen is recycled, at last , more mesitylene is produced and the productive cost is much lower .

为此,本文将催化异构化技术和精密精馏技术结合起来,通过异构化将偏三甲苯转化为均三甲苯,通过精密精馏技术将产物中均三甲苯最大限度的分离出来,得到很高的产品纯度,同时偏三甲苯循环使用,提高了均三甲苯的产量,降低了均三甲苯的生产成本。

In this paper, the studies on the preparation of high pure mesitylene usingMTBE tail gas are made in both experimental and theoretical, different factorsaffecting the alkylation reaction to produce mesitylene by MTBE tail gas areinvestigated, the optimal condition of reaction is defined and the alkylationreaction kinetics of different components are studied, moreover, the comparisonbetween C4 raffinate oil and isobutene used for alkylation agent is made too.

本文对MTBE尾气烷基化法制备高纯度均三甲苯过程进行了实验研究和理论分析,确定了不同因素对烷基化反应的影响,得到了MTBE尾气制备均三甲苯的最佳反应条件,并对不同组分的烷基化反应动力学进行了研究。此外,对乙烯C4抽余油和异丁烯做为烷化剂的实验结果进行了分析和比较。

RESULT: 1.Ouabain act on lens sodium-pump,under the LM,lens anterior capsular membrane discontinuous,epithelium cells clustered,occluding zonule seperated,lens fiber layers fractured.Under the EM,cells totally hollowed,mitochondria swelling,myelin figure appeared.RT-PCR examine the expression condition of αsubunit of sodium pump on mRNA level,α1、α2 and α3-isoform are all decreased.2.Digoxin act on lens sodium-pump,under the LM,lens cell oedema,linkage distructed,extensive exfoliation.Under the EM,plasma appeared little half-transparant hollow region,mitochondria swelling and ridge disappeared. RT-PCR examine,α1、α2 and α3-isoform are all decreased.3.Amphotericin B act on lens sodium-pump,under the LM,lens epithelium cells linked tightly,arranged in-line,lens fiber layers arranged tightly and regularily.Under the EM,abbundant cellular organes,exuberant cells function indicated. RT-PCR examine the expression condition of αsubunit of sodium pump on mRNA level,α1 and α3-isoform are increased significantly,demonstrated isoform-specific action.4D-thyroxine act on lens sodium-pump,under the LM,lens plasmalemma integrated,cells arranged tightly and regularily.Under the EM,nucleus fission appeared,desmosome half-desmosome and tensile microfilaments linked the cells. RT-PCR examine,α2 and α3-isoform are increased, also demonstrated isoform-specific action.5.Vitamin E act on lens sodium-pump,under the LM,lens anterior capsular membrane continuous and smooth,epithelium cells tightly linked,lens fiber layers appearede hollow region occasionally.Under the EM,lateral membrane high density belt appeared,abundant nucleolus. RT-PCR examine,onlyα1-isoform are increased, demonstrated significantly isoform-specific action.6.DMSO act on lens sodium-pump,under the LM,lens anterior capsular membrane slightly thicker,cells linkage partly distructed.Under the EM,plasmalemma denaturation,mitochondria swelling.RT-PCR examine,α1、α2 and α3-isoform are all altered slightly and haven't significant meanning.

结果:1、哇巴因作用于晶状体钠泵后,光镜下晶状体前囊膜断裂、上皮细胞聚积、闭合连接分离、纤维板层裂隙,电镜下全层细胞空泡化、线粒体肿胀出现髓样结构,RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达均减弱。2、地高辛作用于晶状体钠泵后,光镜下晶状体细胞水肿、细胞连接破坏、广泛剥离,电镜下胞质见少许半透明空化区、线粒体肿胀嵴消失,RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达均减弱。3、两性霉素B作用于晶状体钠泵后,光镜下晶状体上皮细胞紧密连接、线状排列、纤维板层紧密规整,电镜下细胞器丰富、细胞功能旺盛,RT-PCR法检测α1及α3表达显著增强、具有一定的重整异构作用特异性。4、D甲状腺素作用于晶状体钠泵后,光镜下晶状体质膜完整、细胞排列紧密规整,电镜下胞核见分裂像、细胞间有桥粒、半桥粒及张力微丝,RT-PCR法检测α2及α3表达均增强、亦有一定的重整异构作用特异性。5、维生素E作用于晶状体钠泵后,光镜下晶状体前囊膜连续光滑、上皮细胞紧密连接、纤维板层偶见空化,电镜下囊侧膜内有高电子密度带、细胞核仁丰富,RT-PCR法检测仅有α1的表达显著增强、具有极强的重整异构作用特异性。6、二甲基亚砜作用于晶状体钠泵后,光镜下晶状体前囊膜轻度增厚、细胞连接部分破坏,电镜下质膜变性、线粒体肿胀,RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达无显著改变。

The esterifying effects of monascus, daqu and rhizopus strain on single acid (acetic acid, caproic acid, lactic acid, butyric acid) and mixed acid (acetic acid,caproic acid,lactic acid, and butyric acid mixed together according to the ratio of 1∶1∶1∶1) were studied.

对红曲霉、大曲以及根霉菌对单一酸(乙酸、己酸、乳酸、丁酸)和混合酸(四大酸按1∶1∶1∶1混合)的酯化效果进行了研究,结果表明,红曲霉能促进己酸、丁酸及混合酸与乙醇的酯化作用,生成的酯类物质均为己酸乙酯,而且酯化能力极强;大曲能促进己酸、丁酸及混合酸与乙醇的酯化作用,生成的酯类物质均为己酸乙酯,并且能促进乙酸与乙醇的酯化生成乙酸乙酯;根霉能促进己酸和混合酸与乙醇的酯化作用,生成少量的己酸乙酯和乳酸乙酯。

As to the high polarity, high boiling point resultant—trimesic acid, the analysis methods of infrared spetrum, gas chromatography-mass spectroscopy, vapour-phase chromatography, acid number titration and so on are seperately used to characterize its property. Infrared spetrum and gas chromatography-mass spectroscopy are used to have a qualitative analysis on the resultant and are compared with the stand diagram. Sulfuric acid-methanol esterification and rapid esterification are used to prepare the trimesic acid trimethyl-ester and have a FID quantitative analysis. So that we make sure the purity of trimesic acid in the resultant and also we have an acid alkali titration on the resultant to get its acid number, in order to verify the purity of trimesic acid in the resultant.

对于高极性、高沸点的固体产物均苯三甲酸,分别采用红外光谱、气质联用、气相色谱、酸值滴定等分析手段进行了表征:利用红外光谱、气质联用的方法进行产物的定性分析,并与在同一仪器、同一条件下做出的标准谱图进行比对;采用硫酸-甲醇酯化法和快速酯化法制备出均苯三甲酸三甲酯,对其进行气相色谱FID定量分析,进而确定固体产物中均苯三甲酸的纯度;用酸碱滴定法确定固体产物的酸值,以对固体产物中均苯三甲酸的纯度进行验证。

Compared with the control, the lungs of 3-day-hyperxia-exposure group developed into edema, hemorrhage and inflammatory infiltration and this condition aggravated at the 7th day. The pulmonary septum was significantly widened at the 14th day, the interstitial fibrocytes as well as alveolar epithelial cells proliferated obviously, and the tendency of lung fibrosis was also presented. The results mentioned above showed that the modle of hyperoxia lung injury was successfully established, and the acute inflamationm was its early symptom while the fibrosis was its late manifistation. There was no positive cytes of IFN-γ in the lung of nomal rats, The positive cytes of the groups under hyperxia-exposure for 3, 7, 14 day, which climbed to the climax at the 7th day and began to decline from the 14th day, were found in alveolus epithlia,pulmonary interstitial, bronchoepithlia and macrophage.

高氧14天(5.46±0.30)虽有所下降,但同空气组比,差异仍然具有显著性(P.05);BALF中蛋白含量高氧3天(0.45±0.10)、7天(0.66±0.08)、14天(0.79±0.14)显著高于空气组(0.18±0.08,P值均。05);肺通透系数高氧3天(6.61±2.05)、7天(10.88±1.54)、14天(12.75±2.20)均明显高于空气组(2.99±1.27,P值均。05);同时病理组织学改变也表明与空气组比较,高氧3天时肺组织水肿、出血、炎性细胞浸润,7天时进一步加重,14天时肺间隔明显增宽,间质纤维细胞和肺泡上皮细胞明显增生,出现肺纤维化倾向;以上结果均表明我们成功地建立了高氧肺损伤动物模型,且急性炎症反应是其早期表现,纤维化改变是其晚期表现。

Other dimensions of father's involvement were not variated in terms of children' age. Father's involvement was not different in terms of children's gender. Fathers who were androgyny were involved more than other fathers of sex role types and who was masculinity involved more than femininity and undifferentiation.

双性化的父亲对儿童的互动监督、规则约束、情感表达、间接支持、学业鼓励均显著多于其他性别角色的父亲;男性化的父亲对儿童的规则约束显著多于女性化的父亲;女性化的父亲在互动监督、情感表达、间接支持和学业鼓励方面均显著多于未分化的父亲。

Methods By using SCL90, the parents of 36 children with schizophrenia were studiedResults The parents' mental health (including personal relations, depression, anxiety, paranoea, somatization, hostility and fear) was worse than the normal model (P01 or P05) The mean scores of somatization, depression and anxiety of the children's mother was significantly difference from those of their father (all P05) The average score of personal relation factor in mother was obviously lower than in father Conclusion Clinical medical and nursing staff should pay attention to the mental health of the diseased children's parents and provide corresponding mental interventional measures

目的 探讨精神分裂症患儿父母心理健康状况。方法采用SCL90 对36例精神分裂症患儿父母进行调查。结果患儿父母整体心理健康状况较常模差,其中人际关系、抑郁、焦虑及偏执4项因子分与常模比较,差异有极显著性意义(均P01);躯体化、敌对和恐怖3项因子分与常模比较,差异有显著性意义(均P05)。患儿母亲躯体化、抑郁、焦虑3项因子分均明显高于父亲,两者比较,差异有显著性意义(均P05);而人际关系因子分明显低于父亲。结论临床医护人员应重视精神分裂症患儿父母的心理健康状况,并给予相应的心理干预措施。

The homogenisation temperature, that is the temperature at which the fluid and vapour phases coalesce , is the minimum temperature of depositionof the mineral

均化温度,即流体与汽态聚结温度,是矿物沉积的最低温度。到中国译典经典版本中查找关于coalesce的最新解释和例句。。。。

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推荐网络例句

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说,如果是/否的问题回答f可看的价值观念在许多最有限坐标,然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明:基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小,它既能去除奇异点,又能保持图像中目标的边缘不变性,具有很好的滤波效果。

It explains in detail how the methods of elicitation, discussion, and induction are to be used in the physics teaching.

本文根据心理学原理论述了改革初中物理教学的必要性,并对"启发、讨论、归纳法"在物理教学中的应用作了详细的阐述。