速率

PCN was prepared by means of intercalation compounding,and the flame retardance of PCN was studied.

通过插层复合法制备了PCN ，研究了PCN的阻燃性能，结果表明，粘土含量比仅为 2 %和 5 %的尼龙-6/粘土纳米复合材料的热释放速率峰值比尼龙-6分别下降 3 2 %和63 %，烟气的生成速率表现出同—趋势。

During the non-isothermal crystallization, compared with common PE, the cooling rate had less impact on the crystallization rate of mPE. Second, the sensitivity of the melt viscosity of mPE to the shear rate was poor, and the introduction of long chain branches onto the molecular structure of mPE could improve the dependence of their melt viscosity on both shear rate and temperature. In the extensional rheometric tests, the occurrence of phenomena of'strain hardening' relied on the structure of linear long chains, and mPE didn't show the behavior of'strain hardening', which implied that the melt strength ofmPE was poor.

其中通过共聚方法在mPE分子中引入非线性长支链结构，对提高mPE熔体粘度对温度的依赖性作用较为明显，而对提高mPE熔体粘度对剪切速率的依赖性以及对提高mPE熔体强度作用较弱；采用共混方法在mPE体系中引入线性长支链结构，则对提高mPE熔体粘度对剪切速率的依赖性以及提高mPE的熔体强度的作用较为明显，而对于提高mPE熔体粘度对温度的依赖性作用相对较弱。

When the culture medium was the mixture of lake water and sediments, the average absorption velocity of DP was 2 ng for per 10000 Microcystis aerugilnosa and 7.6 ng for per 10000 Scenedesmus obiquus respectively everyday. And the average increasing velocity was 1.19×10~5 per mL and 3.7×10~4 per mL respectively everyday.

在沉积物和湖水作培养基的情况下，每1万个微囊藻吸收水中的溶解性磷的平均速率约为2ng／天，斜生栅藻约为7.6ng／天，微囊藻和栅藻的平均增长速率为1.19×10~5个／mL·d和3.7×10~4个／mL·d。

The plant burial environment in the high-tide flat is more humid than that in the beach within a dam due to the tidal effect, so the decomposition rate and the carbon and nitrogen content variation rates of Scirpus triqueter litter in the high-tide flat are significantly higher than those in the beach with in a dam.

由于受潮汐作用影响，高潮滩的植物埋藏环境比堤内的更潮湿，从而使得藨草在高潮滩的分解速率以及碳、氮元素含量的变化速率都明显高于堤内。

The above facts indicated that silicon accumulation in the rice leaf sheath inside, the leaf surface and the sclerenchymatous cell, played the physical barrier role, delayed the hypha of sheath blight expansion.5、Analysing the physiological and biochemical mechanism of the resistance to rice sheath blight improved by silicon application in several respects.(1) After being inoculated with R.solani, O2 and POD activities disordered, CAT activities obviously declined. O2 producingvelocity in 91SP\'s leaves and leaf sheaths of Si+ rice plants were lower than those of Siriceplants, MDA content in leaves and leaf sheaths of Si+ rice plants were lower thanthose of Si- rice plants significantly in three days after inoculating, SOD、POD、CATactivities in leaf sheaths of Si+ rice plants were higher than those of Si- rice plantssignificantly in one day after inoculating, SOD、POD、CAT activities in leaves ofSi-treatment were higher than those of Si- rice plants significantly in three days afterinoculating. O2 producing velocity and MDA content in Lemont\'s leaves and leafsheaths of Si+ rice plants were lower than those of Si- rice plants significantly afterinoculating, and SOD、POD、CAT activities of Si+ rice plants were higher than those ofSi- rice plants significantly.

说明硅在水稻叶鞘内侧、叶表和厚壁细胞积累，起到了物理屏障的作用，延缓了纹枯病菌的扩展。5、阐明了施硅增强水稻抗纹枯病的生理生化机制(1)接种纹枯病菌后，两个水稻品种91SP和Lemont的叶鞘和叶片超氧阴离子自由基O2性紊乱，CAT活性明显下降；抗病品种91SP叶鞘和叶片施硅处理的O2产生速率小于缺硅处理，叶鞘和叶片MDA含量在接种第3 d后显著低于缺硅处理，叶鞘SOD、POD、CAT活性在接种1 d后一直显著高于缺硅处理，叶片SOD、POD、CAT活性在接种3 d后显著高于缺硅处理；感病品种Lemont叶鞘和叶片施硅处理的O2产生速率、MDA含量始终显著小于缺硅处理，SOD、POD、CAT活性始终显著大于缺硅处理。

Result: The absorption rates in rat stomachs at 2 h after administration was 76.31%; The absorption rates at colon, duodenum, ileum and jejunum were 46.25%, 40.54%, 38.21%, 32.77%, respectively. The absorption rate constant at concentrations of 10.014 4, 20.028 8-40.057 6 mg·L-1 in intestine were 0.643 4, 0.613 7, 0.597 0 h-1, respectively. The K a of scopoletin at pH of 6.0, 6.8 and 7.4 in intestine were 0.621 7, 0.603 3, 0.613 7 h-1, respectively.

结果：东莨菪素在大鼠胃中2 h的吸收百分率为76.31%；东莨菪素在结肠、十二指肠、回肠、空肠的吸收率分别为46.25%，40.54%，38.21%，32.77%；不同质量浓度东莨菪素10.014 4，20.028 8，40.057 6 mg·L-1在小肠的吸收速率常数分别为0.643 4，0.613 7，0.597 0 h-1；不同pH(6.0，6.8，7.4在小肠的吸收速率常数分别为0.621 7，0.603 3，

A furnace equipped with a removable measuring scale in the side was applied to study on the shrinkage characteristics of semicoke/coke under gradient temperature during coking process.

利用炉侧安装了移动测量标尺的加热炉(φ150 mm×300 mm)，分别以三种加热速率(1.0℃/m in、1.5℃/m in和3.0℃/m in)及两种堆密度(880 kg/m3和1 080 kg/m3)模拟工业炼焦，研究了1 500 g的炼焦用煤在焦化过程中径向收缩与焦化时间、中心温度、焦化升温速率及梯度温度的关系。

In Eucalyptus forestland, soil organic carbon, total nitrogen, available potassium contents and soil PH decreased significantly; soil available phosphorus and exchangeable magnesium contents, net nitrogen mineralization rate and ammonification rate also decreased but showed no significant difference. In shrubland, soil exchangeable calcium content increased significantly, but the contents of other nutrients had no significant change.

结果表明：火烧3年后，桉林土壤有机碳、全氮、速效钾和pH含量明显降低，土壤有效磷、交换性镁、土壤净氮矿化速率和氨化速率降低，但不显著；火烧灌草坡除土壤交换性钙明显增加外，其他土壤养分均无显著变化。

Results: Zaoboning granula at different doses could inhibit the action potential amplitude and maximal upstroke velocity, prolong the action potential duration, ERP /APD90 of AP, and suppress the diastole depolarization rate, prolong the sinuatrial circle length of AP.

示波器照像记录实验结果。观察早搏宁冲剂低、中、高浓度0.1gL^(-1， 0.2gL^(-1)， 0.3gL^(-1)对AP及AP各指标的影响，并与盐酸普鲁卡因胺比较。结果：早搏宁冲剂可降低豚鼠AP的动作电位幅值及0期最大除极速率v(下标 max，延长动作电位时程，同时降低AP的4期除极速率，延长窦性周长。

The daily courses of net photosynthetic rate and transpiration rate in leaves of Sonneratia apetala from mangrove forest wetland park of Nansha District in Guangzhou together with influencing factors were studied under natural condition.

文章以广州南沙区红树林湿地公园的无瓣海桑人工林为研究对象，测定叶片净光合速率、蒸腾速率的日变化并探讨其与相关生理生态因子的关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。