Xuemin Dong

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This paper introduces the solutions of spatial information service on client side using Scalable Vector Graphics (SVG). The research examines the spatial representation model, coordinate system, symbol base and topology model based on SVG, and then, makes a creation of standard document and applied extension of SVG in order to support spatial presentation,(More)
Energetic salts based on dipicrylamine and its amino derivative were synthesized. All salts were fully characterized by multinuclear NMR spectroscopy ((1)H, (13)C), vibrational spectroscopy (IR), and elemental analysis. Ethylenediammonium di-DPA (DPA=dipicrylamine) and 1,3-diaminoguanidinium DPA were further confirmed by single-crystal X-ray diffraction.(More)
A stacked injection mold with hot runner is designed to form the inside bracket of global pick-up head after analysing its structure. The mold which used stacked molding, hot runner system and open mold system of gear and rack can enhance productivity greatly under the premise of product quality guaranteed. In the mould design process, Pro / E Modeling(More)
This paper proposed a framework using a spatial-extended standardized SVG to implement a WebGIS project on the client side. It proceeds with creating the SVG-based representation model to make SVG support a complete representation of spatial information first, and then a spatial-extended standardized SVG is proposed for a spatial publishing framework on the(More)
After World War Two, composite B (composed of 60% cyclotrimethylenetrinitramine (RDX) and 40% 2,4,6-trinitrotoluene (TNT)) replaced TNT as a kind of castable explosive in large-diameter ammunition, which increased the destructiveness of weapons remarkably. However, several drawbacks of composite B were found later, such as exudation of an oily liquid under(More)
The molecularly imprinted polymers (MIPs) for two structural analogs, 1,3,5-triacetyl-1,3,5-triazacyclohexane (TRAT) and 1,3,5,7-tetraacetyl-1,3,5,7-tetraazacyclooctane (TAT), have been synthesized respectively under the same conditions. The TAT-MIP showed excellent imprinting effect, whereas the TRAT-MIP did not. To understand the different imprinting(More)
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