参数曲线

Blood samples were collected at 0, 5, 10, 15, 30, 45 minutes and 1, 1.5, 2, 3 hours after the drug was given. Serum concentrations of penicillin G were determined by microbiological method. A computer program was used to determine the pharmacokinetic parameters for the blood concentration- time data by compart...

以电子计算机程序处理血药浓度—时间数据，血药浓度随时间变化符合二室开放模型，所得主要动力学参数为：分布半衰期(t1/2α)0.14±0.03h；消除半衰期(t1/2β)0.70±0.21h；表观分布容积0.696±0.141 l/kg；体清除率11.67±1.02 ml/；药时曲线下面积21.57±1.93h·IU/ml，本文还根据单剂量给药参数推算给药方案，供兽医临床参考。

The paper emphatically and deeply studied how to design and realize the functions sub-modules of the configurationally monitoring, the sub-modules include safety management sub-module, process flow sub-module, flow measurement sub-module, alarm sub-module, cure sub-module, parameter setting sub-module, report sub-module. The configurationally monitoring module possesses perfect functions of dynamically monitoring the production process of operating area, dynamically displaying parameter records of flow, pressure as well as temperature, inquiring and analyzing parameter records, drawing tendency charts, data alarming, automatic generating and printing all kinds of report forms and safely managing system.

本文继续深入的对构成组态检测模块的七个子模块；系统安全管理模块、工艺流程模块、流量计量模块、报警模块、曲线图模块、参数设置模块、报表模块的设计开发展开了研究，实现了对作业区生产过程的动态显示，流量、压力、温度等参数的动态显示与历史查询、曲线的绘制、数据报警、各种工作报表的自动生成和打印及安全管理等功能。

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。

The reason is: in the process of the theory formule and finite element calculation, the parameters selected majority are average, while the real static curve is the comprehensive effect of the above pile and side pile in the dirrerent parameter model.

其原因为：在理论公式和有限元计算过程中，所选取的参数大多为加权平均，而实际的静载曲线为桩周土及桩端土不同模型参数土层的综合效果。

And nonlinear least square method was used to fit the rhe...

并运用非线性最小二乘法，对水泥浆流变参数随时间变化曲线进行了拟合，得出流变参数的计算公式。

We use simulation analysis output curves to study the chancing property of the movement parameters and the spreading performance parameters.

利用仿真输出曲线研究了空载和不同加载情况下，不同压力时折叠翼的运动参数和展开性能参数的变化规律。

Four important conclusions were drawn. First, the CMLE method is the most suitable pro-cedure for parameter estimation in 1-parameter model. Second, the test construction of TIPS guided by classical test theory will not be valid for obtaining reliable measures. Third, the systemmatic ICC presenting method presented the perfect item and ability latent traits for the results in CMLE findings. Fourth, the complicated analysis of reliability coefficient and likeli-hood parameters met the precise and accurate measures of latent traits in either integrated process skills or hypothesizing skills.

本研究四项主要结论如下：一是CMLE确为分析试题潜在结构的量化模式，本文之精心分析过程及分析技术本身即为重要的测验资料分析规范；二是TIPS全卷及试题与原始之评量目标对应关系并未如古典测验理论之分析结果；三是各试题之表徵曲线图示法，显示在同一难易度鉴别度下，CMLE估计法分析确实显现高、中、低能力群之试题及能力特质；四是由信度系数及概度参数分析精准地显示了全卷及形成假说技能之试题参数之潜在特质。

In order to assurance the maching accuracy and surface quality of steam turbine blades,based on typical CAD/CAM software Pro/Engineer 2.0,the flow diagram of parametric modeling and maching of turbine blades is drawn;The 3-D entity model of Steam Turbine Blade is upbuilt by parametric modeling method,and the fit-method with NURBS is extracted to smooth the curve surface,and the matrix expression of NURBS is deduced to make the surface more accurate;Then based on it's CAD model,the maching technology process...

为保证汽轮机叶片的加工精度和表面质量，以典型的CAD/CAM软件Pro /Engineer Widefire2.0中文版为基础，绘制了汽轮机叶片参数化设计加工的流程图；用参数化建模方法建立了叶片的三维实体模型，提出用NURBS曲线拟合方法进行光顺处理，并推导出NURBS的矩阵表达式便于截面型线的拟合，进而使叶片的造型更加精确；在CAD模型的基础上，分析了叶片的加工工艺流程，并用软件的CAM功能对叶片进行数控加工仿真，生成了NC代码。

Regulation of the alternation of the postoperative measuring value of the breast and corelative area is the objective designing basement to estimate the postoperative effect and to instruct the clinical routine .

为了掌握隆乳术后乳房及相关部位体表参数的变化规律，借以为手术设计提供依据，预测术后效果，指导临床工作。通过对受术者进行术前、术后乳房及相关部位体表测量，应用GRAFTOOL软件对数据进行分析，获得标准体形及身高与胸围的关系曲线和隆乳术前后经乳头胸围标准参数的变化数值。

The curves are compared which are obtained from three sets of damping oleo-hole with different constant section area under the same structure parameters and initial filling parameters.

经与3组不同直径常截面油孔在同样结构参数和初始填充参数下曲线的对比分析，证明采用变截面油孔缓冲器优化前起落架突伸性能的合理性。

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。