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赖氨酸对儿童身心发育有显著影响。本文在此基础上,对年龄因素作进一步检验,运用方差分析的方法,改进方差分析中的某些计算,得出“不服用赖氨酸的儿童各年龄段之间在身心发育上无显著差异,同服赖氨酸的儿童各年龄之间有显著差异。”并得到赖氨酸最佳补给期。 相似文献
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牛油脂(BT)作为高熔点反刍动物脂的代表,在烘焙食品、起酥油、人造黄油和火锅调味品等食品工业中有着广泛地应用。因存在价格鸿沟且缺乏检测监督方法,牛油脂产品中易被混入棕榈硬脂(ST)以降低成本,提高熔点增强塑性。该研究提出一种利用近红外光谱结合化学计量学对BT掺混进行快速定性定量分析的有效方法,采用PLS方法成功建立掺混牛油脂样品中ST含量的定量模型,R2=0.998 9,交互验证均方根误差(RMSECV)为0.882%,预测均方根误差(RMSEP)为1.65%。结果表明本文建立的基于近红外光谱技术结合化学计量学方法有望作为一种经济、快速、无损和定量的技术应用于反刍动物脂肪样品的真实性检测。 相似文献
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A trust region-CG algorithm for deblurring problem in atmospheric image reconstruction 总被引:3,自引:0,他引:3
In this paper we solve large scale ill-posed problems, particularly the image restoration problem in atmospheric imaging sciences,
by a trust region-CG algorithm. Image restoration involves the removal or minimization of degradation (blur, clutter, noise,
etc.) in an image using a priori knowledge about the degradation phenomena. Our basic technique is the so-called trust region
method, while the subproblem is solved by the truncated conjugate gradient method, which has been well developed for well-posed
problems. The trust region method, due to its robustness in global convergence, seems to be a promising way to deal with ill-posed
problems. 相似文献
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