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浅谈立窖水泥生产适应ISO国际标准的技术措施
ISO国际标准 技术措施
2015/2/2
为了适应我国经济发展的需要和提高我国水泥产品的质量，国家最新发布了与IS0接轨的水泥强度标准，这一举措将对国内水泥生产企业产生很大的影响，因为与国外水泥相比，我国大多数水泥在性能上的差距主要表现为凝结时间偏长、早期强度偏低、颗粒较粗等不足。总体而言，IS0标准实施后我国现行水泥强度要普遍下降约一个强度等级，具体到某一企业，影响则不尽相同，如生产占我国水泥产量30％的GB325水泥厂，由于工艺水平低...
EFFECTIVENESS OF SEISMIC DISPLACEMENT RESPONSE CONTROL FOR NONLINEAR ISO-LATED BRIDGE
nonlinear isolated bridge active control passive control saturation
2008/12/22
The effectiveness of seismic displacement response control for isolated bridges, which behave nonlinearly at both the columns and the isolators, is studied using the LQR optimal active control. A typ...
ISO 12006-2 AND IFC – PREREQUISITES FOR COORDINATION OF STANDARDS FOR CLASSIFICATION AND INTEROPERABILITY
ISO 12006-2 IFC interoperability construction classification construction ontology
2010/9/28
There are two major candidates for Core Ontologies for the construction and facilities management sector, the ISO 12006-2 Framework for classification of information, and the Industry Foundation Class...
ISO DIS 13567 - The Proposed International Standard for Structuring Layers in Computer Aided Building Design
CAD-system layering standardisation
2010/9/27
This article describes the semantic organisation of the standard proposal as well as its default syntax. Important information categories deal with the party responsible for the information, the type ...