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在小学“信息科技”学科中开展研究性学习的探索
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作者 乐秀航 吴渊 《上海电教》 2002年第2期11-14,共4页
关键词 “信息科技”学科 研究性学习 小学教育 信息技术教育 计算机知识
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基于小波消噪的EMD模型在GPS振动信号处理中的应用 被引量:4
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作者 李旋 孙磊 +2 位作者 骆辉 戴吾蛟 何伟 《工程勘察》 CSCD 北大核心 2011年第3期72-76,共5页
经验模式分解和小波分解是当前有效处理非平稳信号的两种时频分析方法,它们各具有其优缺点,适用于不同的应用。从对GPS振动信号的预处理、时域和频域处理入手,结果分析表明,对GPS振动信号先进行小波滤波消除随机噪声的干扰,再应用经验... 经验模式分解和小波分解是当前有效处理非平稳信号的两种时频分析方法,它们各具有其优缺点,适用于不同的应用。从对GPS振动信号的预处理、时域和频域处理入手,结果分析表明,对GPS振动信号先进行小波滤波消除随机噪声的干扰,再应用经验模式分解更有利于变形特征信息的分离和提取,提取的信号与振动平台记录数据更加吻合。 展开更多
关键词 经验模式分解(EMD) 小波分解(WD) 全球定位系统 振动变形
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The Multi-Disciplined Skills Required of Forensic Accountants
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作者 Maria Italia 《Journal of Modern Accounting and Auditing》 2012年第3期365-373,共9页
Forensic accountants today are required to possess a number of characteristics and skills that are derived from a range of disciplines. They must be inquisitive, able to delve into motivations, operations and justific... Forensic accountants today are required to possess a number of characteristics and skills that are derived from a range of disciplines. They must be inquisitive, able to delve into motivations, operations and justifications underlying the behavior of white collar criminals. They must be able to simplify technical accounting information and convey it effectively orally and in writing to a court or tribunal; be able to trace information via information technology tools; have an understanding of the adversarial legal system and the rules of evidence. Universities offering forensic accounting courses in various formats are on the increase. The aim of this paper is to investigate the subject areas that any course specializing in forensic accounting needs to cover. 展开更多
关键词 forensic accounting FRAUD accounting information systems white collar crime
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Biotechnology Development Status and Prospects
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作者 Bingran Wang 《International Journal of Technology Management》 2013年第11期85-87,共3页
In current world, with the rapid development of science and technology and emerging new and interdisciplinary science, technological progress is having extensive and profound impact on the economic and social aspects.... In current world, with the rapid development of science and technology and emerging new and interdisciplinary science, technological progress is having extensive and profound impact on the economic and social aspects. Along with the wave of information technology revolution, life sciences and biotechnology are showing the developing prospect of unlimited possibilities. More and more people have foreseen the arrival of a new era of life sciences, which has important impact on science and technology development, social progress and economic growth. 展开更多
关键词 BIOTECHNOLOGY bioteehnology industrial agglomerations.
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