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论行为医学研究中小样本实验研究法的优长
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作者 张红静 《山东医科大学学报(社会科学版)》 1998年第3期12-13,共2页
在医学领域中行为(及心理)的研究是近几十年来发展起来的一个研究方向,在这一方面出现了行为医学、医学心理学等新兴学科。这些学科兼有自然科学和社会科学双重属性,被认为是用自然科学的方法去研究医学中较为社会化的问题(行为及... 在医学领域中行为(及心理)的研究是近几十年来发展起来的一个研究方向,在这一方面出现了行为医学、医学心理学等新兴学科。这些学科兼有自然科学和社会科学双重属性,被认为是用自然科学的方法去研究医学中较为社会化的问题(行为及心理)。即研究方法的科学性、客观性... 展开更多
关键词 行为医学 中小样本 实验研究法
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Evaluation of measurement uncertainty based on grey system theory for small samples from an unknown distribution 被引量:18
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作者 HAN LianFu TANG WenYan +2 位作者 LIU YongMeng WANG Jun FU ChangFeng 《Science China(Technological Sciences)》 SCIE EI CAS 2013年第6期1517-1524,共8页
To evaluate measurement uncertainty for small sample size and measurement data from an unknown distribution, we propose a grey evaluation method of measurement uncertainty based on the grey relation coefficient. The u... To evaluate measurement uncertainty for small sample size and measurement data from an unknown distribution, we propose a grey evaluation method of measurement uncertainty based on the grey relation coefficient. The uncertainty of measurement is analyzed using grey system theory, and the defects of the grey evaluation model of measurement uncertainty (GEMU) are studied. We then establish an improved grey evaluation model of measurement uncertainty (IGEMU). Simulations show that the precision of IGEMU is greater than that of GEMU, and that sample size has only a small effect on the precision of IGEVU. In particular, IGEMU is applied to evaluating measurement uncertainty for small sample size and measurement data from an unknown distribution. The measurement uncertainty of total profile deviation, which is measured by the CNC gear measuring center, can be evaluated by a combination of IGEMU and the Monte Carlo method. 展开更多
关键词 grey system theory grey relational coefficient measurement uncertainty tooth profile gear measuring center
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