质点

According to Markovian theory and Langevin equation with random ambulate in concern simulated the excursion and diffusion of oil.

采用马尔科夫随机理论建立分析污染物粒子的运动过程，即通过Langevin方程追踪质点求得油膜的漂移扩散过程中考虑了油膜扩散随机数的影响。

We isolate the LCA binding glycosylated proteins from anosia human liver cell extraction and liver cancer cell extraction by LCA coupled epoxy magnetic particles, and the glycosylated fractions were separated by 2D gels which were analyzed by 2D ImageMaster to established disparity expression spectra between Chang Liver and SMMC-7721 firstly.

利用该方法对健康人肝脏细胞Chang Liver总蛋白、肝癌细胞SMMC-7721总蛋白及健康人血清进行了糖蛋白的分离纯化，结合2D电泳技术及其图像分析，建立了健康人肝脏细胞ChangLiver和肝癌细胞SMMS-7721 LCA结合糖蛋白的差异表达谱，分别得到蛋白质点148±5和209±7个，匹配点数为127，匹配率为85.36%。

Twenty-seven differential proteins were tested by MALDI-TOF-MS, and 16 were identified. Of the 16 proteins, 13 were up-regulated in patients with HCC, including heat-shock protein 27, member RAS oncogene family (RAB14), actin, alpha 1 antitrypsin, RNA-binding protein regulatory subunit and so on. By contrast, the levels of proteins such as PDX6, HSPA8 and MnSOD were significantly reduced in HCC patients.

对27个差异蛋白质点进行了质谱分析，鉴定出16个蛋白质，在HBV相关性HCC患者PBMC中表达明显增强的有热休克蛋白质27、ras癌基因家族(RAB14)、肌动蛋白、α1-抗胰蛋白及RNA结合蛋白调节亚基等13个蛋白点；而PDX6、HSPA8及锰超氧化物歧化酶在HCC患者PBMC中低表达。

RESULTS: A well-resolved and reproducible 2-DE pattern of PBMC was obtained from patients with HBV associated HCC or LC. For HCC, the mean number of protein spots was 1186±43, with an average matching rate of 91.6%, and for LC, the mean number of protein spots was 1013±41, with an average matching rate of 90.2%. Twenty-seven differential proteins were tested by MALDI-TOFMS, and 16 were identified. Of the 16 proteins, 13 were up-regulated in patients with HCC, including heat-shock protein 27, member RAS oncogene family (RAB14), actin, alpha 1 antitrypsin, RNAbinding protein regulatory subunit and so on. By contrast, the levels of proteins such as PDX6, HSPA8 and MnSOD were significantly reduced in HCC patients.

结果：得到了分辨率较高、重复性较好的HBV相关性HCC及LC患者PBMC双向凝胶电泳图谱，HBV相关性HCC及LC患者PBMC凝胶的平均蛋白质点数分别为1186±43及1013±41；组内的平均匹配率分别为91.6%，90.20%对27个差异蛋白质点进行了质谱分析，鉴定出16个蛋白质，在HBV相关性HCC患者PBMC中表达明显增强的有热休克蛋白质27、ras癌基因家族(RAB14)、肌动蛋白、α1-抗胰蛋白及RNA结合蛋白调节亚基等13个蛋白点；而PDX6、HSPA8及锰超氧化物歧化酶在HCC患者PBMC中低表达。

For serviceability, the displaced shape, which storey drift ratio of the floor level at point of contraflexure on the initial mode of lateral displacement is equal to limit of the storey drift ratio, may be seen as target displacement mode. Based on the target displacement mode of frame- shear wall structure in the serviceability performance level, the equivalent parameter can be obtained.

对于使用良好性能水平，将侧移曲线上反弯点对应的楼层处的层间位移角刚好达到相应限值时的侧移曲线作为目标侧移曲线，据此计算等效单自由度体系的等效参数以及原结构的基底剪力和各质点的水平地震作用。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

Finally, experiment results indicate that K_2SO_4 is the most widely and best stimulation effect in familiar dissoluble sulfate.

引入外来质点，降低了成核的表面能势垒，使CaSO_4·2H_2O更容易结晶。

The stress distribution widespreadly and unequivalently in brain tissue, which mainly effect by the cerebelar tentorium, cerebral falx, and unregular geometry of cranial bone .

结论脑内质点应力差值致脑组织剪应变损伤，猫颅骨不规则的几何形状、小脑幕、大脑镰结构是导致旋转暴力向脑内传递广泛而不均一的主要原因。

The near isogenic lines, Ps and Pf, were developed by anther, which serves as materials for isolating and cloning Rf3 gene by using of two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) we had improved in this study.

该特异蛋白质点的出现与消失可能与玉米CMS-S的育性恢复有一定关系，对其纯化分离将为Rf3基因的克隆奠定基础和进一步了解玉米质核互作不育表达模式的分子机制。

Results: Twenty one differential protein spots were screened and 5 differential proteins were identified. They included Ezrin protein, transcription elongation factor A, and lamin A/C which were up-regulated in LoVo cells and non-metastatic protein expressed in isoform a (NM23 A) and heat shock protein 8 (HSPA8) which were up-regulated in SW480 cells.

结果：筛选出21个差异蛋白质点，成功鉴定出5种差异蛋白质，其中在LoVo细胞株中表达上调的蛋白有埃兹蛋白、转录延长因子A (transcription elongation factor A)和甘氨酸A/C，在SW480细胞株中表达上调的蛋白有NM23蛋白[non-metastatic cell 1 protein (NM23A) expressed in isoform a]和（heat shockprotein 8，热休克蛋白8）。

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。