三维线框模型生成全参数化模型方法研究

针对船体母型船模型由原先的线框模型转化为CATIA全参数化模型的相关问题,以SPD设计软件输出线框模型数据为基础,运用CATIA CAA二次开发技术手段,对转化生成全参数化模型方法进行了研究。开发软件工具高效处理面片模型,读取零件属性数据,以面片模型为基础,匹配属性数据作为输入参数,自动构建板架模型。实现了原有线框模型到CATIA平台全参数化模型的转化。     

A sense of belonging among Australian university students

ABSTRACT

This study was designed to explore what students perceive as essential factors influencing their sense of belonging. Gaining insight into what students perceive as influencing their sense of belonging enables design of interventions to foster that sense of belonging. Two hundred and nine students from a university in Sydney responded to the question: ‘What would help you to feel that you belong at Macquarie University?’ Results showed students most frequently identified people as instrumental in feeling that they belonged at university. Students also reported that places where there is respect, and where others are accepted, contributed to their feelings of belonging. Lastly, opportunities to interact with other students, such as within clubs, societies and at events, were reported by students to contribute to their feelings of belonging. Findings of the current study are discussed in relation to existing literature, to develop approaches that may enhance university students’ sense of belonging.     

Children's distributive justice judgments: aversive racism in Euro-American children?

Euro-American 2nd- and 4th-grade children (Ms=7.67 and 9.82 years) heard stories about Black and White characters who produced artwork yielding a windfall reward. Children allocated rewards to characters, justified their allocations, and judged the fairness of patterns representing different justice principles. Older children allocated more money to Black than White productive characters and to White than Black needy characters, consistent with predictions from aversive racism theory. Rationales most often relied on equality principles; older children gave more equity-based justifications for Black than for White characters. Fairness ratings of patterns representing 4 justice principles revealed effects for age and character race. Implications for understanding the developmental course of moral judgments as they apply to racial differences are discussed.     

网络市场测试中的期权应用

网络产品试销是为了解决市场与产品不确定性问题,由于实物期权法在处理不确定性问题上的优势,在试销决策问题上引入实物期权方法很有必要。通过计算分析,实物期权法能比较合理地反映高风险网络市场中选择权的价值,反映管理者灵活地调整营销策略而给项目带来的增值。