质点

The movable matrix module of the bending die for round pipe was drawn precisely according to the rotation property of the particle.

按质点的转动性质精确绘制出圆管弯曲模活动凹模模块，便于数控线切割机一次完成凹模加工，缩短了制模周

The lattice used is a set of 100 ball pendulums each with 3.6 g in mass,fixed on a rod.

这里所用的实验点阵是由100个质量为3.6g的质点组成的耦合的一维单自由度的单摆群。

Oints P and Q represent two positions of the particle.

点和q点分别表示该质点的两个位置。

Results:（ 1 ） The well-resolved, reproducible 2-DE patterns of oral lichen planus and normal oral mucosa were obtained.

结果：（1）人口腔扁平苔藓及正常黏膜组织的双向电泳图谱的平均蛋白质点数分别为1576 67和1608 73，同一组织凝胶在蛋白质点位置上重复性较好。

In this study, the well-resolved and reproducible 2-DE patterns of C-serum proteome from latex of healthy and TPD trees were established and some different-expressed protein spots between the two types of tissues were detected by mass spectrometry. These proteins may be involved the onset of TPD syndrome. The results presented here demonstrate that 2-DE technique provides a powerful complementary approach for the identification of TPD related proteins from rubber tree.

本研究建立了分辨率高且重复性较好的橡胶树死皮株与健康株胶乳C-乳清的双向凝胶电泳图谱，并应用质谱技术鉴定了其中表达差异的蛋白质点，这些差异表达的蛋白质可能参与了死皮发生和发展的过程。

Results Well-resolved,reproducible 2-DE patterns of SGC7901/VCR and SGC7901 were established.Silver staining was better when protein sample amount was low,overloaded protein will interfere resolution of the maps.Gels stained with colloidal Coomassie brilliant blue had more protein spots numbers and abundance without apparent trails when increased loading protein sample.

结果 获得了背景清晰、重复性好的双向凝胶电泳图谱，两种染色凝胶相比，硝酸银染色在样品少时显示更佳，过量则影响图像质量，而胶体考马斯亮蓝染色在上样量增加时的凝胶蛋白质点数目及丰度均增加，并无明显拖尾。

The well-resolved, reproducible 2-DE patterns of Ganyang Huafeng syndrome and Xuexu Shengfeng syndrome PD were established and revealed the protein expression difference of PBMC between the two syndromes of PD patients.

结果 获得了分辨率和重复性均较好的双向电泳考染图谱，对其中的15个差异蛋白质点分别进行肽质指纹分析，经数据库查询，初步鉴定为一些与细胞骨架、抗氧化应激、蛋白降解、信号转导、细胞周期调控等有关的蛋白质。

objective to investigate staining methods for two-dimensional gel(2-de)electrophoresis in multidrug resistance of gastric cancer.methods cultured vincristine-resistant human gastric cancer cell line sgc7901/vcr and its parental cell line sgc7901.variant amount protein of those cells were separated by 2-de.gels were stained with silver nitrate or colloidal coomassie brilliant blue,and scanned by image scanner.results well-resolved,reproducible 2-de patterns of sgc7901/vcr and sgc7901 were established.silver staining was better when protein sample amount was low,overloaded protein will interfere resolution of the maps.gels stained with colloidal coomassie brilliant blue had more protein spots numbers and abundance without apparent trails when increased loading protein sample.conclusion two staining methods were influenced largely by the sum of protein samples,properly selection may be helpful for further study with proteomics in multidrug resistance of gastric cancer.

低甲氧基果胶的胶凝机理及防止预凝胶。。。他扎罗汀凝胶与克林霉素凝胶治疗痤疮。。。注射隆乳后经乳晕切口取出聚丙烯酰胺。。。目的分析利用蛋白质组学方法研究胃癌耐药相关蛋白质中双向电泳凝胶的染色显示。方法培养胃癌细胞sgc7901和长春新碱诱导的耐药胃癌细胞sgc7901/vcr，用双向凝胶电泳技术分离总蛋白，银染及胶体考马斯亮蓝染色，image scanner扫描仪扫描凝胶。结果获得了背景清晰、重复性好的双向凝胶电泳图谱，两种染色凝胶相比，硝酸银染色在样品少时显示更佳，过量则影响图像质量，而胶体考马斯亮蓝染色在上样量增加时的凝胶蛋白质点数目及丰度均增加，并无明显拖尾。结论两种显色方法受样品量影响较大，恰当选用有利于通过蛋白质组学研究胃癌耐药机制工作的进一步开展。

Vortex Ring ; Temperature Inversion Layer ; Laser Induced Fluorescence ; Particle Image Velocimetry ; Comsol Multiphysics

指导教授朱锦洲；共同指导教授郭志禹；中文关键字涡环；逆温层；雷射萤光显影技术；质点显像测速仪；数值分析

We may assume that there is no correlation between the local velocity of a liquid particle at a mathematical point inside the void space and the concentration gradient.

我们可以假定，在空隙空间的一个数学点上液体质点的局部速度和浓度梯度之间无相关性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。