数理统计方法在饲料产品质量控制中的应用

在饲料工业生产中，饲料产品的质量是企业的生命。饲料厂为了满足用户的要求，为了竞争市场，往往在饲料标签上标明产品成分分析保证值、净重等。如果实际分析值低于产品成分分析保证值，用户就会退货，从而影响企业信誉，造成经济损失。如果实际粗蛋白高出产品粗蛋白保证...

Design and Performance of a Controlled Environment Mini-chamber for Measuring Produce Quality Deterioration

To minimize losses between harvest and retail display, a system is needed to track temperature and RH exposure of fresh produce and predict its quality at each step of the distribution chain. With accurate models, such system could （1） identify problematic situations before losses occur; （2） become a management tool for decision makers; and （3） help quantify the real impact of individual inappropriate conditions. A project was initiated to develop models required for such a decision system. Because the data required to develop models were not available for most fruit and vegetables, a series of storage trials was planned for measuring changes in physiological and microbial quality, and development of physiological disorders and/or diseases, as a function of time, temperature and RH. To meet this objective, controlled environment mini-chambers were designed, built and instrumented for measuring the effect of traceable environmental conditions encountered during storage and transportation of fresh horticultural produce of similar size and shape as tomato. Detailed design and performance evaluation of these mini-chambers are presented.

积极发展金刚石行业为提升低碳经济服务

本文从我国高速发展的超硬材料的代表——金刚石（含装备、控制系统、产品系列化，产量绝对比、质量先进规范化）人手，阐述了其必然替代普通磨料。同时从金刚石的工程性作用，全方位阐述了它在矿产资源，特别是能源资源方面的无可替代的作用；从金刚石的功能性作用，阐述了金刚石的半导体性质在光伏效应、光伏电源的作用。这些都是确保低碳经济的极为重要的基本措施。