查询词典 parameters

Methods 65 patients were scanned in brain with magnetic resonance spectroscopy,the location and the size of region of interesting and other scanning parameters values （FOV,frequency matrix,phase matrix,saturate cingulum,etc.） were changed intentionally,the values of full width at half maxium and water suppression lever were recorded.A preliminary evaluation of the resulted waves and the relationship between the parameters data and the quality of the MRS waves were probed.

对65例头颅检查的受检者行磁共振波谱扫描，有目的地改变感兴趣区域的位置、大小和其他参数设置（FOV、频率矩阵、相位矩阵、预饱和带等），记录预扫描后系统显示的半高宽、水抑制程度等数值，并对扫描后显示的图像质量进行初步评价，探讨这些数值与波谱质量之间的关系。

objective to explore the effects on images from the space location of spectrum and scanning parameters,and summarize the technological essential and application hints.methods 65 patients were scanned in brain with magnetic resonance spectroscopy,the location and the size of region of interesting and other scanning parameters values （fov,frequency matrix,phase matrix,saturate cingulum,etc.

对65例头颅检查的受检者行磁共振波谱扫描，有目的地改变感兴趣区域的位置、大小和其他参数设置（fov、频率矩阵、相位矩阵、预饱和带等），记录预扫描后系统显示的半高宽、水抑制程度等数值，并对扫描后显示的图像质量进行初步评价，探讨这些数值与波谱质量之间的关系。

objective to explore the effects on images from the space location of spectrum and scanning parameters'and summarize the technological essential and application hints.methods 65 patients were scanned in brain with magnetic resonance spectroscopy'the location and the size of region of interesting and other scanning parameters values （fov'frequency matrix'phase matrix'saturate cingulum'etc.

目的 观察波谱空间定位和扫描参数对图像质量的影响，并初步小结应用要点。方法对65例头颅检查的受检者行磁共振波谱扫描，有目的地改变感兴趣区域的位置、大小和其他参数设置（fov、频率矩阵、相位矩阵、预饱和带等），记录预扫描后系统显示的半高宽、水抑制程度等数值，并对扫描后显示的图像质量进行初步评价，探讨这些数值与波谱质量之间的关系。

Since color＇s parameters are correlative,decreasing dimension by wiping off some parameters affects classificatory precision.

通过对颜色与其参数的相关性分析，认为颜色的各个参数都是紧密相关的，去除某些参数进行降维处理，实际上造成了精度损失。

It consists of three components: the parameters estimating on-line; the calculating of closed-loop critical gain K and frequency ω; evaluating the PID parameters to enable the closed-loop syetem with the given phase margin.

该算法有三部分组成：在线参数估计；计算系统在比例控制下的闭环临界振荡频率ω和临界增益K；确定PID控制器参数使闭环系统具有给定的相位裕量。

For the separation of the complex system of alcohol fraction of Fructus schisandrae chinensis, complex sample analysis system software was utilized to optimize the high performance liquid chromatographic conditions. The HPLC retention parameters a and c, and the peak shape parameters σ and W1/2 were obtained accurately and rapidly by analyzing 4 linear gradient elutions.

针对五味子乙醇提取物的复杂体系，借助于复杂样品分析系统软件，根据组分在4次简单线性梯度下42个峰的保留时间，快速准确地计算出各组分的液相色谱保留参数a，c值和峰形参数σ，W1/2。

Linear solvation energy relation was firstly introduced in the paper, and the method and step of gaining the special parameters of solvent and solute were introduced in detail, and these special parameters were used to selection and optimization of extractive agent in extractive distillation. The model of predicting activity coefficient at infinite dilution was established by linear solvation energy relation. By the above theory, several candidate solvents were selected to separate C5 fraction, and by experiment of vapor-liquid phase equilibrium at atmosphere pressure, the mixture of N-methyl-pyrrolidone including 4% water was used extractive agent of separating C5 fraction. Then binary vapor-liquid phase equilibrium of the some compound in C5 fraction and N-methyl-pyrolidone were determined at atmosphere pressure and correlated by NRTL equation. Isoprene being objective compound, experiments were operated in the laboratory-scale column; the processes were simulated by RadFrac model in ASPEN PLUS. And by the combination of experiment and simulation, the new process of separation of C5 was established.

本文首先对线性溶剂化能关系进行了分析介绍，也介绍了采用溶剂化能关系得到溶质溶剂特性参数的方法步骤，并将这些参数用于萃取精馏萃取剂的选择与优化；也通过线性溶剂化能关系式建立无限稀释活度系数预测模型，取得了一定的预测精度；将通过上述方法初选的溶剂进行了常压汽液平衡的测定研究，通过实验研究选定含水4%的N-甲基吡咯烷酮溶液做为C5分离的萃取剂，测定了大量N-甲基吡咯烷酮与C5组分的二元平衡数据，并进行关联计算；以异戊二烯为目标产物在实验室规模的精馏塔内进行了C5分离的实验研究，取得大量塔内数据；通过选用合适的热力学模型，采用ASPEN中RadFrac模块对分离过程进行模拟研究，通过实验与模拟相结合，建立了C5分离的新工艺，为将来的工业化打下了坚实的基础。

The application of an algorithm based on weighted least squares estimation method measuring and computing parameters of synchronous machine is studied,these parameters can be directly obtained by repeatedly p...

针对参数辨识的收敛性和多值性问题，提出了一些有效的方法，如采用动态阻尼因子和动态增益矩阵，提高了参数辨识的精度和算法的稳定性。

A series of structural parameters and component parameters of novolac resin were concluded through DEPT 135 spectrum of typical novolac resin with low or high mass fraction,including o-o,o-p and p-p condensation percentage of total condensation reaction;o-,p-percentage of active point in condensation reaction;reaction percentage of different active points;condensation ratioof phenolic resin in double ortho way and the average number of resin.

为准确了解线形酚醛树脂的组成和微细结构，利用高分辨率核磁共振技术中近年发展起来的DEPT135测定方法，测定了线形酚醛树脂的有关结构参数：o-o位缩聚百分率、o-p位缩聚百分率、p-p缩聚百分率；参与缩聚反应活性点中o位占据百分率、p占据百分率以及各个活性点参与反应百分率；同核双邻位缩聚值；不同类型酚醛树脂的平均核体数。

The optimization methods of database SQL query were studied and some available query optimization Methods were given out as follows: The incompatible data type should avoid to be used; More redundancy search parameters should be given as join condition in join query; In some condition, the number of note hitted to target was estimated by optimizing implement using the average density; Some other maths operating symbol should avoid to be used as condition parameters in WHERE clause; Some operating symbol and its sentence should avoid to be used also; When the cluster function was used,the WHERE clause should be paied attention to more,and so on.

作者单位：（重庆工学院商贸信息学院，重庆 400050）摘要：数据库SQL查询语句的优化，须注意：避免使用不兼容数据类型；连接查询中应多给连接条件提供一些冗余的搜索参数；某种条件下优化器只能使用其平均密度以估计命中的记录数；避免对WHERE子句中条件参数使用其它数学操作符；避免使用某些操作符及相应语句；聚簇函数的使用应注意WHERE子句。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切