正交镜象滤波器组的理论及应用

正交镜象滤波器组(QMF)是一种新型的滤波系统.与普通滤波器组比较,用它实现对信号的频域分析及综合时可大大减少所需的计算量.本文除阐述了双信道及多信道QMF的概念及频响要求之外,还对有关的设计理论及执行方式作了简述.最后对QMF的主要应用领域作了介绍.     

Japan Image Mirror

Asmall-scale survey was deducted recently by China's Foreign Trade and showed that Chinese urbanites are changing their attitudes toward Japan and many of them are viewing their Asian neighbor more positively.On the topic of "Japan Image",we interviewed over 50 young white collars from China.Most of them have been to Japan or working for Japanese enterprises in China.Based on their interests and knowledge to Japan,we paint an international picture to this economic giant by inflection from the thought mirror in minds.     

对鲍德里亚自然观点的批判

鲍德里亚在《生产之镜》里对马克思的"自然"进行了歪曲的解读,他认为马克思的自然观点是把自然当作生产原则的表现和表达,是奴性自由和孤立的总体性的隐喻,是永恒的、超越的观念等,从而否定马克思的物质生产劳动的基础性地位观点,进而否定了马克思主义的社会历史理论。     

A NEW SUT CONSOLIDATION METHOD TESTED BY A DECOMPOSITION OF VALUE ADDED AND CO2 EMBODIED IN EU27 EXPORTS

This paper develops a method to consolidate national supply–use tables (SUTs) into a single supra-regional SUT. The method deals with mirror trade statistics problems, such as the different valuation of imports and exports, and it corrects for double-counting re-exports. The method is tested by means of a decomposition of value added and CO₂ emissions embodied in EU27 exports to third countries. When the national SUTs for the period 2000–2007 are used, neglecting intra-European Union spillover and feedback effects results in an underestimation of the embodied value added of 12–15%. Not consolidating the national tables properly leads to a further underestimation of 11–16%. With these underestimations removed, EU27 foreign exports still only explain around 11% of EU27 Gross Domestic Product, whereas they explain 17% of the EU27 CO₂ emissions. Hence, the income benefits of these exports are, in relative terms, considerably smaller than their CO₂ emission cost.     

Conceptual blending in advertising

Conceptual blending occurs at the moment of perception and creates new meanings out of existing ways of thinking. Analysis of data collected in phenomenological interviews reveals the blending processes consumers use to “make sense” of advertisements. We recognize subtle similarities and differences between metaphor and blending, and examine their occurrence in three types of blending networks in ads.     

大数据技术的哲学审思

大数据依托云计算、系列分布式处理平台等技术,采集、存储、挖掘、分析海量数据,旨在全面反映事物发展样态,预测事物发展的基本规律与趋势。大数据时代,让数据“说话”,改变了人们的日常生活和思维方式,更带来了深刻的哲学思考：以相关性消解因果性,以总体取代样本,以镜像化世界嵌入真实世界,以数据表征事实,以符号性等同真实性。只有深度把握好大数据的技术本质,才能避免滑入数据镜像的物化世界深渊,让大数据更好地服务社会。