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《Food Control》2017
Since the actual food safety monitoring data have characteristics of high-dimension, complexity, discreteness and nonlinear properties, it is difficult to accurately predict the risk of actual food inspection process. Therefore, this paper proposes a predictive modeling approach based on analytic hierarchy process (AHP) integrated extreme learning machine (ELM) (AHP-ELM). The proposed approach utilizes the AHP model to obtain the effective process characteristic information (PCIs). Compared with the analytic hierarchy process (AHP) integrated traditional artificial neural network (ANN) approach, the AHP-ELM prediction model is effectively verified by executing a linear comparison between all PCIs and the effective PCIs through daily inspection data source from the supervision and inspection department repository of China quality supervision system. Finally, the PCIs and the prediction value are obtained to provide more reliable food information and identification of potentially emerging food safety issues. The proposed method is applied to the food safety early warning and monitoring system in China. The result shows that the proposed model is effective and feasible in processing the complex food inspection data. Meanwhile, it can help to improve the quality of food products, ensure food safety and reduce the risk of food safety. 相似文献
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利用红外光谱法对四氯化钛(TiCl4)中的氧碳杂质含量进行检测,并成功将该检测方法应用于精TiCl4的在线检测中。在线检测系统样品池由2个腔体串联组成,光程分别是10 mm和40 mm,其中10 mm光程用于检测CCl4含量,40 mm光程用于检测COS、COCl2、CS2、C6Cl6、Si2OCl6、TiOCl2、SO2Cl2、SOCl2、VOCl3、CCl3COCl等化合物含量。样品池采用纯钛材质,窗片采用ZnSn材质,均具有较强的耐腐蚀性。实践证明,该在线检测技术有效解决了精TiCl4检测过程中接触空气水解的难题,使精TiCl4中氧碳杂质检测更加准确。 相似文献
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为了提高追溯系统的效率、用户体验和利用率等,提出设计特定风险控制水平下可配置化乳制品追溯平台的方法.该方法选择与食品风险相关的参数,包括HACCP(危害分析关键控制点)、风险等级、风险发生可能性、追溯环节和成本选择,应用二进制相关的数学推导生成这些参数的编码结果,把该编码结果进行低、中、高三种区间组合进行分析,并且详细设计追溯系统的可配置功能.以乳制品为例,按照企业需求系统提供定制化服务,追溯系统可根据企业个性化需求进行定制,解决追溯系统效率、用户体验和利用率等问题.对不同食品类型追溯平台实施改造与设计,可以提高企业应用追溯系统的积极性、政府监管效率以及便于消费者查询. 相似文献
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目的 研究红托竹荪多糖的超声辅助提取工艺及其膜分级分离方法.方法 样品采用超声辅助方法提取,以多糖提取率为指标,通过单因素试验结合响应面优化得到红托竹荪多糖的最佳提取工艺参数,并采用5种不同截留分子量的滤膜对红托竹荪粗多糖进行分级分离,比较这5种滤膜对红托竹荪粗多糖的分级效果.结果 红托竹荪多糖的最佳提取工艺参数为:超... 相似文献
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