话音的频域编码

本文阐述了语言信号的子带及变换编码原理,为了消除分块效应,介绍了一种作为语言编码新方法的搭接式变换和与此有关的快速算法及滤波器设计。最后,对于为实现最佳比特分配所需的提取副信息的一种方法作了简要的说明。     

Stock Returns and Inflation

In this paper the relationship between inflation and stock returns in Australia is examined. It is found that increases in the price level reduce the real level of the stock price index. However, it is also found that the question of whether persistent increases in inflation affect real returns cannot be addressed using the Australian data.     

Real Business Cycle Models: An Introduction

In this article we present a simple real business cycle (RBC) model, in order to show that these models capture many of the features of business cycles in the real economy. While these models are very abstract, we argue that they are a useful way of thinking about the macro-economy. RBC models have also been influential in refocusing attention on supply issues in macroeconomics, after a long postwar focus on aggregate demand management in Australia and most other western economies. Policies such as structural reform and labour market reform are clearly aimed at influencing the supply side of the economy and productivity, and can be understood within the framework of RBC theory. RBC models have developed rapidly recently, yet there remains a good deal of misunderstanding about the methods and aims of these models. In this article we present a review of the literature and examine a simple model, using graphical techniques, to clarify some issues. We also argue that these models, while having limitations, have caused a fruitful re-examination of supply issues in economics, after the almost exclusive focus on aggregate demand in macroeconomics until the late 1970s.     

非线性网络的故障诊断

本文讨论了将K故障证实法推广于具有不可及节点的非线性网络的多故障诊断问题。提出了一种新的故障检验和分析方法,通过诊断实例,说明了本方法的可行性。     

Significant Issues for the Future: Some Additional Perspectives

The rational elements of management dominated the questions raised by our Editorial Board members in the previous issue of JPIM when they offered their ideas in, "Significant Issues For the Future of Product Innovation." In this article, the discussion is continued with some other Board members but this time the human side of managements gets its due attention. The issues presented here add to the picture of complexity that is the reality of product innovation but they also may provoke the thinking that can lead to an improvement in management performance.     

多措并举 促进资本走出去

该文梳理了近年来我国促进资本流出的外汇政策,从政策法规制定、税收优惠、金融机构发展和金融市场建设四个方面分析了境外投资发展缓慢的原因;指出要进一步拓宽资本流出渠道,应加快制定《境外投资保证法》,支持金融机构对外投资和提供金融服务;放宽境外机构在境内筹集人民币限制,支持个人资金走出去,并完善“走出去”综合管理信息系统。     

知识经济引发的机遇和挑战

未来的经济将是以知识创新与技术创新为基础,进入以全球为市场的时代。国家综合国力的竞争,核心是科技转化为生产能力的竞争。支柱产业的确立,要根据国内、国际两个市场的条件而定。知识经济不可避免地促进经济全球化的发展。我们不能闭关自守,也不能听人摆布。要善于在参与世界经济中增进自己的安全与利益