下降物

Result The number of diarrhea in each group administered bayberry extracts was reduced, with the effect of the ethanol extract being stronger than that of water extract.

结果 灌胃杨梅果实提取物的小鼠的腹泻次数均有明显的下降，且醇提物的作用效果要好于水提物。

Oct.,2005. Results The monthly average concentrations of benzene series in six months after decoration changed obviously while the temperature and time changed.

结果苯系物浓度随时间、温度的变化有统计学意义，随装修后间隔时间的延长，空气中苯系物浓度逐渐下降，4个月后达到国家标准限值的要求。

And mechanical test results indicate the tensile strength and flexural strength of copolymers decrease with increasing biphenyl content in the backbone.

力学实验表明：随着共聚物PPSU结构含量的增加，共聚物的拉伸强度和弯曲强度略有下降。

More levels of nano-SiO〓 lead to larger particle size. An increase in polymerization reaction temperature causes the decrease in coagulum and increase in viscosity and particle size, and the nano-SiO〓 has same effects at certain temperature. When the levels of hydrophilic monomer acrylic acid and hydroxylethyl methacrylate in core composite are increased, the particle size of emulsifier-free emulsion decreases, in spite of the presence of nano-SiO〓.

无皂乳液具有单分散性好、表面洁净、成本低廉、不影响产品性能的特点，首次研究了含或不含纳米粒子的含羟基和羧基的丙烯酸无皂乳液聚合，发现含或不含纳米粒子的无皂乳液聚合后的粒子粒径较大，具有单分散性；较多的纳米粒子导致较大的乳液粒径；反应温度升高，凝聚物含量下降，而乳液粘度和乳胶粒粒径增加，在相同的反应温度下，纳米粒子降低了聚合过程中的凝聚物含量，增加了乳液聚合物的粘度和粒径；不论纳米粒子是否存在，当无皂乳液核组成中亲水单体AA和HEMA用量增加时，乳胶粒粒径均减少。

The substituted half-sandwich titaconece with bulky alkoxyl group [CpTiC1〓 or CpTi 〓] or indene ring can not be fluorinated by BF〓·Et〓O under the selected condition, but still coordinates with the BF〓, this coordination then enhances the steric effect that stabilizes the precursor and hinders the reduction of the Ti to the Ti species, reflected in the decrease in polymerization activity.

但是这个转化受主催化剂分子的空间位阻和聚合反应温度的影响，当主催化剂为大位阻的烷氧基取代茂钛络合物或茚钛络合物时，在一般的聚合温度下BF〓不能对它们进行氟化，但可以和其中的OR配位，这种配位进一步加剧了空间位阻，从而阻碍了活性中心的形成，导致催化活性的下降。

The results showed that the avian nLM cells were sensitive to edges moving across their ERFs, depending on the contrast, length, and orientation, but not on the shape and area size of the stimuli.

主要证据有：（1）运动边缘可诱导出强烈的视觉发放；（2）神经元视觉发放与刺激物形状和大小无关；（3）刺激物边缘模糊后神经元的视觉反应明显下降。

The absorrption of benzoid compound by activated carbon fiber was studied. In theexperiment, the influence of the rate of filtration to the purification effeciency was researched. On the basis of summarizing the principle, advantage and recent research on watertreatment by the activated carbon fiber, adsorption performance of three activated carbons(fibrous, granulose, and powdery) were studied.

选用粘胶基活性碳纤维吸附废气中苯系物，考察了吸附过程中滤速对净化效率的影响，结果表明：滤速为0.20m／s以下时，活性碳纤维对废气中苯系物的净化效率达到90％以上；滤速为0.22m／s时，其净化效率有所下降，净化效率由大到小依次为邻二甲苯、甲苯、苯。

Therefore, the LsHNXs genes were cloned in this study, and their function was studied by RNAi. The main results were shown as follows:1 The conservative sequences of three LsHNXs genes (LsHNX1, LsHNX2, and LsHNX3), and the 3'-terminal specific sequences of LsHNX2 and LsHNX3, were cloned by RT-PCR and 3'-RACE.2 The plant RNAi vectors were constructed and the transformation of Limonium sinense was done. The RNAi lines of three single-genes and one double-gene were obtained and were propogated rapidly for the molecular and the stress tolerance analysis.3 To be compared with wild type, the Na+ and K+ contents secreted by the leaves of LsNHX1 transgenic plants were remarkably higher.

主要实验结果如下：1采用RT-PCR和3'-RACE方法从补血草中克隆获得LsNHXs基因家族三个成员LsNHX1、LsNHX2和LsNHX3的保守区序列以及LsNHX2和LsNHX3的3'端特异序列。2构建植物基因RNAi沉默表达载体并转化补血草，获得三个单基因和一个双基因的RNAi沉默表达植株，快繁转基因植株供分子鉴定和耐逆分析。3LsNHX1转基因植株叶片表面分泌物中的Na+、K+离子含量比野生型对照显著增加；叶组织内Na+离子含量和K+离子含量均略高，但差异不显著；K+/Na+比没有显著差异。4LsNHX2转基因植株叶片表面分泌物中的Na+离子含量比野生型对照有所下降，但差异不显著；K+离子含量比对照显著降低。

Here, we took demonstration study of the ecological impacts of disconnection from the river on fish recources in Zhangdu Lake. Our results showed that:(1) Fishery mode changed and the rate of wild fishery production changed from 95% in 1949 to less than 5% in 2002.(2) Fish species have decreased from 80 in 1950s to 52 at present, and the rate of migrant and potamic species decreased from 50% in 1950s to 30% at present.(3) Comparing with the linking lake, Zhangdu Lake had higher fishing production, larger individual size, fewer species number and lower diversity index of "mihunzheng" fishery, a universal fishing tool in Yangtze.

我们以涨渡湖为例开展江湖阻隔后对单个湖泊鱼类资源所产生的生态影响进行研究，结果表明：江湖阻隔导致湖泊生产经营方式改变，使得野生渔业产量的比例由1949年的95%，降低到2002年的不足5%；江湖阻隔后湖泊鱼类种类由50年代约80种下降到现在的52种，其中，洄游性和流水型鱼类比重由50%下降至不足30%；迷魂阵渔获物在单位产量、个体大小上极显著(p 0.01)地高于通江湖泊，但在物种数和多样性指数上则要低得多(p 0.01)。

The results showed that film packaging obviously decreased the weight loss and rotted rate, and to some extent decreased the respiration rate and slowed down the reduction of anthocyanin content, inhibited polygalacturonase and pectinesterase activities. But the decrease of total soluble solids, vitamin C and protopectin contents were slightly affected by packaging film.

结果表明，薄膜包装对降低果实失重率和腐烂率具有较好的效果；对降低呼吸强度、抑制多聚半乳糖醛酸酶和果胶酯酶的活性以及花色苷含量的下降有一定效果；对减缓贮藏期间可溶性固形物、维生素C和原果胶含量的下降无明显影响。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。