查询词典 gradients

Methods Rat bone mesenchymal stem cells were isolated from adult rats bone marrow by Ficoll -Paque density gradients, cultured and amplified in vitro, and then identified by flow cytometry ; Middle cerebral artery occlusion model of regional cerebral ischemia in rats were made by thread embolizing.

方法Fieoll-Paque分离液梯度离心分离大鼠骨髓间质干细胞（rat bone mesenchymal stem cells，rMSCs），经体外培养扩增并流式细胞术鉴定；线拴法制作大鼠大脑中动脉闭塞脑局灶缺血模型，Hoechst33342标记细胞，分别通过静脉移植及立体定向局部移植到大鼠缺血侧纹状体。

The effect of parison temperature gradients on behavior of parison inflation and part cooling further influence distributions of final part wall thickness and part quality.

由于型坯温度分布直接影响型坯吹胀行为和制品冷却，从而影响制品最终的壁厚分布和制品质量。

METHODS: We have employed a series of toxicological and pharmacodynamical tests to determine its LD50 and learn the actions of different prescriptions of Yumasha-fen's gradients.

进行LD50测定、小鼠酚红法、青蛙纤毛运动法、小鼠氨水引咳法、组织对豚鼠鼻粘膜过敏反应等毒理学和药效学试验，对各组份进行配方分析。

Through the analysis of the alloy electroplating solution in gradients, the process variables and their relationship between content of manganese in the alloy coating, the optimum process has been obtained, the additive to improve the cathode current efficiency was found; it was found that the deposits with a manganese content 40～60% exhibit excellent corrosion resistance; the corrosion resistance of zinc-manganese alloy coating will be even better after"phosphated"and passivated.

研究发现Na〓SeO〓能显著提高锌锰合金电沉积电流效率。首次用循环伏安法、恒电势电解法、恒电流阶跃法研究了Na〓SeO〓提高电流效率的作用机理。研究发现Na〓SeO〓在锌锰共沉积的条件下在阴极是分两步还原，即：首先在-0.9V处被还原为单质硒，然后在-1.25V处被还原为多硒阴离子。证明了多硒和多硒阴离子都在阴极存在特性吸附

By setting five kinds of poplar row spacing gradients and control, the yield distribution rules of three intercropping medicinal species were observed, namely Glycyrrhiza uralensis, Platycodon grandiflorum and Pinellia pedatisecta.

设置了5种不同毛白杨行距梯度和无林地对照，观测了不同毛白杨行距以及同一行距下的不同林地位置间作的甘草、桔梗、天南星3种药用植物的产量分布规律。

These findings indicate that there is plasticity in response to micro\|habitat heterogeneity along the continuous moisture content gradients of sand dunes at the ramet population and clonal fragment levels.

结果表明，准噶尔无叶豆对沙丘坡面水分条件连续变化的异质性小生境存在分株种群及克隆片段两个等级的可塑性响应，并通过可塑性变化适应了沙丘坡面水分条件的分异。

It was found the flow velocity gradients around the gas-tunnel was high enough to cause air mixture and sand-core washing-out, the casting should be with good sinkhead and gas-venting ability.

对铸造过程充型模拟的计算结果可知，在气道附近区域，流体流动的速度梯度很大，容易出现卷气、冲刷砂芯等现象，因此，在这些区域出现气孔、针孔和缩孔、砂孔等缺陷的可能性很大，为此，必须保证铸件凝固补缩良好、排气通畅。

Finally, we investigate the boundary behavior of solutions to subelliptic p-Laplace Dirichlet problem and get the L~p-estimates of solutions as well as their generalized gradients and Hardy potentials.

在此基础上，研究了Heisenberg群上具有齐次边界条件的次椭圆p-Laplace方程Dirichlet问题解的边界行为，得到了解及其次椭圆梯度和Hardy位势的边界L~p估计。

Thus, the secondary edge reflector heats the edge and reduces thermal gradients across the susceptor and the semiconductor wafer to inhibit slip dislocations in the wafer during epitaxial layer deposition.

这样，二次边缘反射器便可加热外边并减小横越衬托器和半导体晶片的热梯度，从而可在外延生长层沉积时阻止晶片内滑移位错的发生。

The other 18 subjects (31%) did not meet listing criteria due to pulmonary hypertension with massive transpulmonary gradients, severe diabetes, or another factor; 7 patients had wearable LVAD implants and the remaining 11 who had contraindications both to HTX and to LVAD implantation remained on medical therapy.

其他18名患者（31%）由于跨肺压差、严重糖尿病或其他原因导致的肺动脉高压而不符合移植标准；7名患者植入了LVAD，其余11名既有HTD禁忌症又有LVAD禁忌症的患者仍然在接受药物治疗。

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。