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激光快速成型技术的应用 被引量:8
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作者 王雅先 尉富恩 王科峰 《轻工机械》 CAS 2006年第4期143-145,共3页
传统的制造技术,新产品开发周期长、成本高,采用激光选区粉末烧结(SLS)技术得到的蜡型可直接用于生产,得到金属零件,无须制造模具,可大大缩短新产品开发周期,降低开发成本。本文主要介绍了激光选区粉末烧结技术的原理和特点,并结合工业... 传统的制造技术,新产品开发周期长、成本高,采用激光选区粉末烧结(SLS)技术得到的蜡型可直接用于生产,得到金属零件,无须制造模具,可大大缩短新产品开发周期,降低开发成本。本文主要介绍了激光选区粉末烧结技术的原理和特点,并结合工业生产,详细阐述了SLS技术的应用。 展开更多
关键词 快速成型 选区粉末烧结(SLS) 快速铸造 翻模成型 反求工程
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激光选区快速成型技术在铸造行业的应用 被引量:1
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作者 王雅先 《内蒙古科技与经济》 2010年第16期66-66,70,共2页
文章主要介绍了激光选区粉末烧结(SLS)技术的原理和特点,并结合工业生产,研究了SLS快速成型和铸造行业结合的一体化技术,从而实现了从计算机三维模型到金属零件的快速铸造工艺。
关键词 激光选区粉末烧结 快速铸造 翻模成型 反求工程
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The Value Relevance of Foreign Currency Translation Adjustments (FCTAs) in the Italian Stock Exchange
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作者 Olga Ferraro Stefania Veltri 《Journal of Modern Accounting and Auditing》 2012年第10期1523-1534,共12页
The main aim of this paper is to test whether the foreign currency translation adjustments (FCTAs), the largest components of other comprehensive income (OCI) for most firms, are incrementally value-relevant for i... The main aim of this paper is to test whether the foreign currency translation adjustments (FCTAs), the largest components of other comprehensive income (OCI) for most firms, are incrementally value-relevant for investors with respect to the net income (NI). Previous archival research on the value relevance of FCTAs has documented a weak or non-existent link between FCTAs and firm valuation (Pinto, 2005). The hypothesized reasons could reside in the econometric method employed, in the use of as-if numbers, and in the missing consideration of the differential effect that exchange rate changes have on firms of varying levels of capital intensiveness. This study adds to the existing literature by empirically testing the value relevance of as-reported FCTAs numbers in the earnings and book value model the Ohlson-like interacted model through panel data techniques. The main finding of this study is that as-reported FCTAs are significantly and incrementally value-relevant, when their parameter estimates are allowed to vary in the cross-section. 展开更多
关键词 value relevance foreign currency translation adjustments (FCTAs) other comprehensive income (OCI) Italy listed groups as-reported data
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