随着旅游者环境意识的不断增强，人们的消费行为对环境产生的影响也越来越受到关注。从低碳旅游感知价值和参考群体的影响作用出发，构建“90后”低碳旅游参与意愿的结构方程模型，并进行了假设的验证。研究结果表明：情感价值和社会价值对“90后”低碳旅游参与意愿具有显著的正向影响，而功能价值对这个年龄群体的低碳旅游参与意愿的显著正向影响在本文中未得到验证；主要参考群体（父母、亲戚）和次要参考群体（同学、朋友）虽然对“90后”低碳旅游参与意愿都正向影响显著，但次要参考群体的影响程度要高于主要参考群体的。研究认为，“90后”正不断成为消费的新生力量，在这个消费群体中推广低碳旅游得到的效用很重要，这种效用是从感知质量和期望绩效比较中以及短期和长期感知成本的降低中得到的。此外，发挥同学朋友的参考群体作用，也可以提高此类人群的低碳旅游参与意愿。

With the growth of environmental awareness,tourists pay more attention to the impact of their consumption behavior on the environment.In this paper,a structural equation model of the will-ingness of post-90s generation to participate low-carbon tourism is built in view of the perceived value and reference group,and the hypothesis verification is conducted.The results show that the senti-mental value and social value have a significant positive effect on post-90s generation''s low-carbon tourism participation willingness,while the significant positive effect of functional value has not been verified in this study.The main reference group(parents,relatives)and the secondary reference group (classmates,friends)have a significant positive effect on post-90s generation''s willingness to partici-pate low-carbon tourism,and the effect of the secondary reference group is greater than that of the main reference group.It is also suggested that with the active participation of post-90s

对长春花的化学成分研究进展进行文献整理,为其进一步开发利用提供有价值的参考。

This paper sorted the literatures on progress of researches on chemical contents of Catharanthus Roseus,so as to provide val-uable reference for its further development and utilization.

参考钢质海船相关规范以及人体工程学的要求，统计分析了豪华邮轮各部分主要设计参数，并讨论了通道的设计原则及方法，对提高豪华邮轮研发设计有一定参考价值。

In this paper, the main design parameters of cruise ship are statistical analyzed in terms of relevant norms of steel ships and ergonomic requirements. Design principles and methods of channels are discussed also. The result would be an important reference for improving the research and design development for cruise ship.

从党的十六届六中全会提出社会主义核心价值体系命题，到党的十八大强调社会主义核心价值体系是兴国之魂，决定着中国特色社会主义发展方向。学术界关于高校社会主义核心价值体系建设的研究如火如荼。对已有研究成果进行分析梳理，可以为深入研究社会主义核心价值体系提供参考和借鉴，推动高校更好地践行社会主义核心价值体系。

The presentation of the socialism core value system at the Sixth Plenum of the 16th CPC Central Committee and the emphasis of the socialism core value system as the soul to rejuvenate the nation at the 18th CPC National Congress determine the development direction of China-featured socialism. At the same time, the researches by the academic circle on the construction of the Socialism Core Value System of Universities and Colleges are in full swing. This Article has analyzed and sorted the existing research results with the expectation of acting as the references for the further research on the socialism core value system so as to bring the role of universities and colleges in the promotion and implementation of the socialism core value system into full play and continuously increase the practicability of researches.

介绍了Mathematica在辅助二重积分的计算方法的教学中的应用，并展示了相关课件的演示效果．相关的内容对二重积分的课堂教学有较好的参考价值和应用价值．

In this paper , some applications of Mathematica in assisting the teaching of calculating double integrals are introduced and the demonstration of the courseware is displayed as well .The research provide valuable preference for classroom teaching .