QRD

To study the effect of Qianggan Ruanjian decoction ( QRD ) on hepatocirrhosis portal hypertension and its possible function mechanism .

探讨强肝软坚方对肝硬化门脉高压症的作用及其可能机制。

Quadratic residue sequence diffuser ( QRD ) is a very widely used sound diffusion structure , as for its simple structure , convenient proliferation and excellent diffusion performance .

二次剩余序列扩散板是一种应用非常广泛的声扩散结构，其结构简单、制造方便并且扩散性能优良。

The Highest Level of Chinese Non-recovery Coking Technique & Introduction of the QRD Anthracite Clear-type Thermal-recovery Stamping Mechanical Coke Oven

中国无回收炼焦技术最高水平&QRD无烟煤清洁型热回收捣固式机焦炉介绍

The differences of the acoustic diffusion when terraces , QRD and absorptive material of distinct parameters are employed on the ground , the ceiling and the rear wall respectively are discussed .

讨论了在地板、天花板和后墙分别安装阶梯以及不同参数的二次余数扩散体和吸声材料时，声场扩散性的改变。

The main contents in this dissertation include : 1 、 Sequential interference cancellation ( SIC ) algorithm for V-BLAST , including zero-forcing or MMSE based SIC and QR decomposition ( QRD ) based method , are studied .

研究内容主要包括：1、研究了一些最基本的V-BLAST系统的连续干扰消除（SIC）检测算法，包括了基于迫零和最小均方误差准则的连续干扰消除技术，基于QR分解的算法等。

The tree will have two main branches , the V5Query ( describing what the user wants to see ) and the V5QueryResultSet ( QRD ) which describes how the user wants to see the results ( list or crosstab ) .

该树将有两个主要分支，V5Query（描述用户希望看到什么）和V5QueryResultSet（QRD），后者描述用户希望如何看到结果（列表或交叉表）。

The quadratic residue diffuser ( QRD ) is approximated by a transfer formula of the acoustic specific impedance , and it is validated by the whole surface modeling . Third , the acoustic field in a classroom is simulated numerically using the two dimensional BEM program .

采用了声阻抗率的转移公式近似表示二次余数扩散体，利用完全边界模型进行了验证。第三，利用二维边界元程序对教室的声场进行了数值模拟。

This paper introduces the development and the advantages of the non-recovery coke oven , and expounds the technical features and structural features of the QRD anthracite clear-type thermal-recovery stamping mechanical coke oven with the self-intellectual property right that is designed by our country .

首先简要介绍了无回收焦炉的发展与优点，而后着重介绍了我国自行设计具有自主知识产权的QRD无烟煤清洁型热回收捣固式机焦炉的工艺特点及结构特点。