pnl

PNL waves study of several moderate strong earthquakes in northwestern China

中国西北地区几个中强地震的Pnl波研究

PNL Question-answering System Based on Fuzzy Description Logic

基于模糊描述逻辑的PNL网络问答系统

This paper specifies precise natural language process based on fuzzy description logic as fuzzy PNL question-answering system .

基于模糊描述逻辑，该文特化了PNL过程，提出了PNL式模糊网络问答系统。

Objective To discuss the method and clinical value of 3D volumetric display in the diagnosis of pulmonary nodular lesion ( PNL ) .

目的探讨CT三维重建显示肺内结节病变的方法及诊断价值。

To investigate the clinical value of constructing PNL pathway using the2D ( 2-dimensional ) CT reconstruction to image the kidney and nearby organs .

通过对肾脏及周围脏器的CT二维重建成像，探讨CT二维成像指导安全建立PNL手术通道的的临床价值。

The source parameters of 9 strong events in the North China region have been determined with a joint moment tensor inversion of teleseismic and regional distance body waves ( P , SH , Pnl ) .

本文利用远震P波及SH波和区域地震P（nl）波波形反演方法，测定了华北9次强震的断层面解、震源深度及地震矩。

Finally various separation algorithms proposed for PNL BSS / ICA and general nonlinear BSS / ICA are reviewed and give a conclusion about the problem and tendency on the development about nonlinear BSS / ICA .

最后对非线性BSS/ICA存在的问题和发展趋势进行了总结。

Considering the characteristic of BTT control , the relative motion equation is established in the polar coordinate , based on which the mathematical model of BTT guidance system is obtained . Then BTT PNL is deeply analyzed .

结合BTT控制的特点，推导了极坐标系下的弹目相对运动方程，建立了BTT导弹制导控制系统的数学模型，在此基础上对BTT比例导引律进行了分析。

To improve the disadvantages such as computation-demanding and imprecise estimate of score function , of the existing methods for PNL mixture , we proposed a novel post-nonlinear blind source separation algorithm based on mutual information minimization .

现有的PNL算法往往存在一些缺点，例如计算量比较大、记分函数估计不精确等。为了克服这些缺点，本文提出了一种基于最小互信息的PNL分离算法。

Conclusion The 3D volumetric display of PNL can be easily obtained using spiral CT machine . The quality of image mainly depends on the primitive data , and this new method is valuable in characteristic diagnosis and selecting operation-plan .

结论肺内结节病变的三维重建在螺旋CT机上简单易行，图像质量主要依赖于原始数据资料，它对结节的定性诊断和术前手术方案的选择有一定价值。

Such parameters as time nonlinear parameters ( TDNL , TINL ), amplitude nonlinear parameters ( ADNL , AINL ) and phase nonlinear parameter ( PNL ) can be used to describe its static performance .

用时间非线性参数（TDNL和TINL）、幅度非线性参数（ADNL和AINL）以及相位非线性参数（PNL）来描述相位体制DAC的静态性能；

16 patients were primarily stone-free , 7 patients had clinically insignificant residual stones that passed spontaneously after PNL , and 12 patients needed auxiliary measures . Average operative duration was 158 minutes . No major complications were discovered .

16例患者一次取净，7例症状不明显的残余结石，PNL术后自然排出体外，12例需要其它辅助方式治疗，手术平均时间158min，无工作通道建立过程中常见的严重并发症发生。

Most of the earthquake data recorded by our seismograph network are in the range of 3 ° - 13 ° . The study of Pnl - wave in this range shows great significance in the research of regional stress field , plate dynamics and crustal structures .

我国地震台网所记录到的国内地震大部分落在3&13°的范围内，因此在此范围内的Pnl波对研究区域应力场，板块动力学及地壳结构具有非常重要的意义。+