Methods: The study group comprised 70 patients with chronic CHF, the control group involved 162 patients with compensatory heart function secondary to cardiovascular diseases. All patients underwent 24 h ambulatory electrocardiogram, time domain indices of HRV and VA were analysed.

Some problems have been discussed, such as the error factors, the positive anomaly of velocity ratio, the anomalous time indices and the relation between anomaly and seismic gap.

本文讨论了地震波速变比异常在地震预报应用中的一些问题。如多台求波速比值方法的误差因子、是否存在正异常的问题、关于异常时间的判别指标以及异常与空区的关系等。

International Comparative Studies on monetary purchasing power indices in the era of knowledge economy

知识经济时代货币购买力指标的国际比较研究

Used to Martensite Crystal Coordinate Revolving Defining A-M Phase Transformation Crystal Face and Crystal Axial Indices Relationship

采用坐标旋转法确定A-M相变的晶面晶向指数关系

In this paper, relations between the Eulerian angles ε, γ, ψ, of a rotation-cut crystal plate and its indices of crystal plane are deduced, thus providing the bases and methods for cutting and orientating of actual crystal plate in the electro-acoustic technique.

本文导出了各种旋转切割晶片欧拉角εγψ与晶片表面结晶面网指数hkl的关系，为电声应用中实际晶片的切割与定向提供了方法和依据。

As the sputtering pressure decreasing, the thicker of films were increased, the closer effective refractive indices of ZnO films to Crystal Refractive Indices.

溅射压强越小，薄膜越厚，薄膜的有效折射率越接近晶体材料的折射率。

In the dictionary matching based Chinese word automatic assignment indexing, there is some difficulty in additional indexing of proper noun.

在以词典匹配为基础的中文自动赋词标引中，存在如何实现专有名词的增词标引问题。

Subject assignment indexing of Chinese

汉语主题赋词标引

Research of Dynamic Compound Indexing for Moving Objects Based on Road Distribution

基于道路分布的移动对象动态组合索引研究

State Analysis of the Subject Indexing and Quality Control

主题标引状况分析及质量控制

A study of Assembly in Document Subject Indexing

文献主题标引中的组配问题

The Subject Indexing of Network Information Resources Based on SKOS

基于SKOS的网络信息资源主题标引

The Using of Free Words in Subject Indexing for Retrieval Journals

检索期刊主题标引中自由词的运用

Free term indexing is a supplement for subject indexing of Chinese Classified Thesaurus.

自由词标引是对以《中国分类主题词表》为依据的主题标引的补充。

Rules of Free Term Indexing for Chinese Books Deposited in National Library of China

国家图书馆中文图书自由词标引规则

Thematic indexing is divided into free indexing and controlled indexing according to the post-trial world-list. The Study of a Numerical Controlled Indexing Mechanism for All the Surface of Bolted Sphere Node of Grid's Machining

主题标引依是否使用词表，分为自由标引和受控标引两种。网架节点球全球面数控分度夹紧装置研制

This paper discusses the existing problems in key words indexing and introduces the free indexing methods in an effort to get the accurate and standardized key words efficiently.

鉴于高校学报学术论文中关键词标引现状，探讨了关键词的概念和如何抽取，介绍了自由标引关键词的方法，旨在使学报关键词的标引更加快捷、准确和规范。

The Experiment on Comparing Automatic Indexing with Free Indexing of the News Database

新闻数据库自动标引与自由标引的比较实验

The Study of the Question of Free Indexing

自由标引问题研究

Manned indexing experiences based auto-classifying tries to solve this problem through the principle of the compactness and inter changeableness of information search languages. However, direct application of indexing phrases to match the targets causes a series of problems in the actual situations.

基于人工标引经验的自动分类试图通过情报检索语言兼容互换的原理解决这一问题，然而直接应用标引词串对分类进行匹配在实际应用中产生了一系列的问题。

Some problems in controlled thesaurus indexing are pointed out: low indexing efficiency, relation net among the descriptors and new terms aren't developed, and uncertain coordinate indexing.

分析了建立情报检索系统时受控主题标引的不足之处：标引效率低、语义网得不到扩充、不一致的组配标引。