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沈红霞 《建设机械技术与管理》2012,(9):67-70
1 行业背景与代理商风险
随着去年以来中国工程机械行业发展的降速,各种风险也随之显现,代理商一边面临着庞大的应收账款,又面临着对厂家的欠款.虽然以前市场也出现过大的调整,但是没有像这次一样调整幅度如此大,经历时间如此长.在我们挖掘机行业每年的总量只有两万五千台的时候,主机厂和代理商感觉也都过的挺好.但去年超过17万台的量以及今年最起码还是有12万的量,为什么我们每个人认为风险剧增呢?面对风险,代理商如何应对才能独善其身?结合合肥中建多年的经验,下面我从行业背景、标准化建设与风险管理、标准化建设的建议等三个方面进行分析. 相似文献
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The fabrication and characteristics of spindle Fe2O3@Au core/shell particle were investigated, and the effect of the core/shell nanoparticles as the surface enhanced Raman spectroscopy (SERS)-active substrates was studied. By using the seed-catalyzed reduction technique, anisotropic Fe2O3@Au core/shell particles with spindle morphology were successfully prepared. The Fe2O3 particles with spindle morphology were initially prepared as original cores. The Au nanoparticles of 2 nm were attached onto the Fe2O3 particles through organosilane molecules. Uniform Au shell formed onto Fe2O3 core modified by Au nanoparticles through the in-situ reduction of HAuCl4. The shell thickness was controlled through regulating the concentration of HAuCl4 solution. The results of TEM, XRD and UV-vis characterization show that the core/shell particles with the original shape of the Fe2O3 particles are obtained and these surfaces are covered by Au shell completely. The surface enhanced Raman spectrum of the probe molecules adsorbed on these core/shell substrates is strong and the intensity is enhanced with the increase of the thickness of Au shell or the aspect ratio of particles. The spindle Fe2O3@Au core/shell particles exhibit optimum (SERS) activity. 相似文献
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全国取用水平台整合是实现取用水业务“一网统管”的重要途径,但因拟整合的取用水业务系统繁多,信息资源分散,平台整合中存在一数多源、标准不统一、户证点关系不清晰等现实问题,由此尝试提出了利用知识图谱技术应用于平台整合过程,建设一套全国统一的数据库表结构标准,形成一套真实且唯一的户证点关系,构建一套智能且有效的监管数据产品。本文采用自顶向下的知识图谱构建方式,根据各系统的结构化数据,构造模式层中的本体及其相互关系,形成对应的概念模型和规则关系,然后依照此模式从数据中抽取实体及关系,进行数据融合,构造数据层,并及时进行知识更新,完成全国取用水平台知识图谱的构建。最后基于统一规范的数据库表结构标准,依据对取用水户取用水行为监管需求,开展时空尺度的数据信息统计分析,构建六类监管产品,形成取用水管控“一张图”。 相似文献