According to the goals of maximization for selling revenue and profit, this paper, using the concept of price elasticity and cross elasticity of demand, sets up mathematical models for the price adjustment of relative products.
根据企业销售收入最大化和利润最大化两个不同目标,利用需求价格弹性、需求交叉弹性的概念,提出了相关产品价格调整的数学模型,并结合具体实例研究计算。
On the basis of it, the fully related product design technology in UGs WAVE is presented and a parametric procuct assembly model is designed by this technology.
对产品级参数化设计和实现产品装配结构的参数化设计的意义进行了论述 ,并在此基础上介绍了UG软件的WAVE中的全相关产品级设计技术 ,最后利用该技术实现了一个具体产品装配结构的参数化设计。
Association study on COMT (Val1 58 Met) genetic polymorphisms and heroin dependence;
儿茶酚-O-甲基转移酶Val1 58 Met基因多态性与海洛因依赖的相关性研究
Genetic Diversity of Eleven Polymorphic Loci within HLA Gene Complex and Association with Nasopharyngeal Carcinoma;
HLA区间11个遗传标记多态性与鼻咽癌的相关性研究
Objective To find out the association between the indoor formaldehyde, benzene series pollution and the plank material, decoration time, well ventilated etc, and provide scientific basis for choosing suitable time to live after decoration.
结果 室内甲醛浓度与人造板材使用量、通风时间、检测时的温度等因素有明显的相关关系 (P<0 。