动力学

Results showed that urokinase at 20U/ml was the optimal concentration used. Fibrinolysis kinetics and plasma plasminogen concentration of 27 normal persons and 27 patients with acute myeloblastic leukemia were detected, a significant difference was observed between the two groups. Repetition test showed that the coefficience of variation was 5.24±1.51%. This method could also be used to detect the concentration of plasma fibrinogen.

结果 初步建立了正常人纤溶动力学分析参数，确定了20U/ml尿激酶为最适试验浓度，检测22例正常人，27例急性髓细胞白血病患者纤溶动力学及纤溶酶原含量，显示患病组较正常组差异有显著意义(P.05， P.01)，重复性试验显示该方法的变异系数为(5.42±1.51)%，并可同步测定血浆纤维蛋白原浓度。

Objective Since the neurophysiological system is a highly nonlinear dynamic system,nonlinear dynamic information of EMG signals were extracted to describe its characteristics.

目的 由于运动神经系统本质上是一个高度非线性的动力学系统，尝试提取肌电信号的非线性动力学信息作为信号的特征。

According to the above study result, the diversity of microorganisms population in the SUFR system is complex and the bio-community formed in the SUFR system is stable. The close relations between abundance of bacteria and nutrients were found. The correlation between heterotrophic bacteria and COD was 0.949. The correlation between organic phosphate bacteria and TP was 0.815. The correlation between nitrosobacteria and NH3-N was 0.909. The correlation between disnitrifier bacteria and TN was 0.653. These inneglectable great factors effecting on phosphorus-uptake and phosphorus-release of phosphorus accumulating organisms are the influent COD、the concentration of DO、the sludge retention time、the temperature. The diversity of organic phosphate bacteria population in the SUFR reactor was complex and there is no phosphate bacteria taking the absolute superiority in quantity. The near-native pure culture method powerfully complement the traditional pure culture technique and enrich culture technique. The sludgy bioactivity is very good in whole SUFR reactor. By the quality of being biochemistry, the anaerobic phase is higher than anoxic phase and the anoxic phase is higher than aerobic phase of SUFR.

通过以上试验内容研究发现，SUFR 系统中的微型动物种群较多，微生物生态系统稳定；系统中微生物的数量与营养盐的含量密切相关，其中总异养菌与COD的相关系数r 为0.949，有机磷细菌与TP 的相关系数r 为0.815，亚硝化菌与NH4+-N的相关系数r 为0.909，反硝化菌的数量和TN 的相关系数r 为0.653；污水生物除磷工艺中进水COD 的浓度、DO 浓度、泥龄的长短、温度都是影响聚磷菌释磷及吸磷效果的不可忽视的因素；SUFR 系统中的磷细菌呈现种群多样化的趋势，没有占绝对优势数量的磷细菌；微孔滤膜近自然培养法是对传统纯培养技术和富集培养技术的有力补充；整个SUFR 反应器系统中污泥的生物活性很好，就可生化性来讲，厌氧反应器大于缺氧反应器大于好氧反应器；按照动力学方程式求出的细胞生长动力学特征值和SUFR 脱氮除磷系统工艺的实测值结果基本吻合。

The process of the nonexchangeable potassium release from the soil tested in 912 hours can be well described with linear equation.④ The constant B rate of the nonexchangeable potassium release from the soil tested is controlled by the content of clay and slowly available K.

关于非交换钾的释放动力学，Martin等已用几种微酸性砂质土和砂壤质土进行了初步研究［7～10］，国内在此领域研究不多，对中国北方广泛分布的黄土性土壤非交换钾释放动力学研究更少。

The contant B rate and the average velocity V of nonexchangeable potassium release can be used for the evaluation of the capability of soil supporting potassium to plant.Key words soil,nonexchangeable potassium release,kinetics of potassium release,Shaanxi Province

本试验通过H饱和树脂模拟根系吸钾过程，探索黄土性土壤非交换钾的释放动力学特征，并用暗棕壤和风砂土作参照，旨在为了解黄土性土壤非交换性钾释放动力学特征和评价供钾特性提供科学依据。

Based on the dynamical system of a tuberculosis spread m odel, the dynamical behavior of a tuberculosis spread model with constant immigr ation was discussed, and the local and global asymptotic stability of the endemi c equilibrium on this model is studied by using Hurwitz criterion and multiple m atrix theory. Sufficient conditions for the local and global asymptotically stab ility of the endemic equilibrium on this model are obtained.

在结核病传播的数学模型的动力学系统基础上，利用 Hurwitz 判据和复合矩阵理论，讨论了具有常数移入的结核病传播的数学模型的动力学性质，研究了具有常数移入的结核病模型的地方病平衡点的局部和全局渐近稳定性，得到了具有常数移入的结核病模型的地方病平衡点是局部和全局渐近稳定的充分条件。

In this paper, a series of polysiloxanes crosslinked by tetraethyl orthosilicate, polyurethanes crosslinked by trimethanol propane, and polyurethane/polysiloxane IPNs were synthesized at the existence of catalyst at room temperature.

用FTIR研究了聚硅氧烷、聚氨酯和IPN的化学结构和固化反应动力学，用TG-IR联用技术研究了聚硅氧烷、聚氨酯和IPN的耐热性及在无氧条件下的热裂解产物、热分解反应动力学和热分解机理。

The paper discusses five key points in the qualitative reconstruction: 1 timely, to combine a study of "reversed succession", 2 spatially, to synthesize a study of "inversion tectonics", 3 to emphasize significance of structural restoration in palaeogeographic reconstruction, 4 reformation events in the period of basin formation serving as a link between past and future, and 5 a study on basin geodynamics matched with the orogenic geodynamics.

文章讨论了定性重建中的5个要点：l时间上，要结合&反序&的研究，2空间上，要结合&反转构造&的研究，3强调构造复位在古地理重建中的意义，4盆地建造阶段中的改造事件所起的承前启后作用，5盆地动力学与造山动力学的结合研究。

Methods: After the model of transplanted pancreatic cancer was established in nude mice with orthotransplantation of human pancreatic cancer cell line into the pancreas, the ischemia of the right lobe of the pancreas was induced with ligation of the gastroduodenal, inferior pancreaticoduodenal and dorsal pancreatic arteries.

在建立人胰腺癌细胞株裸小鼠胰腺原位移植瘤模型的基础上，结扎荷瘤裸鼠胃十二指肠动脉、胰十二指肠下动脉及背胰动脉诱导胰腺右叶区域性缺血，观察缺血对裸小鼠胰腺移植癌群体增殖动力学及细胞周期动力学的影响。

The results show that the products morphologies are amorphous, granular, needle-like when the kinetics advances linearly and the products of tetrapod and multipod-like ZnO appear as the kinetics proceeds parabolically.

结果表明：氧化动力学遵守直线规律时，产物的结晶形貌是无定形、颗粒状和单针状；氧化动力学曲线为抛物线规律时，产物的结晶形貌是四针状和多针状。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。