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Single-crystalline sodium tungsten bronze (Na-WO3) nanorods with typical diameters of 10–200 nm and lengths of several of microns were prepared via hydrothermal synthesis. X-ray diffraction data showed that the as-prepared Na-WO3 nanorods crystallize in a hexagonal structure (space group P6 / mmm) with unit cell parameters a = 7.3166(8) Å and c = 3.8990(8) Å, and elongate along the <001> direction...
Based on analysis of the reasons of low efficiency in construction industry, the paper suggests that the key point of improving efficiency is the implementation of lifecycle building information integrated management. The main contents of research in this paper include the concept of BIM, product analysis and implementation. After the analysis of the BLM, it is indicated that BIM is the key technology...
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