我国高等教育可持续发展模式及其国际比较研究

本文运用聚类、判别、回归等多种统计方法 ,在“三步走”发展战略的指导下 ,通过对国外 2 0个发达国家和地区首年达到人均GDP4 0 0 0— 50 0 0美元的经济和教育指标关系的研究 ,揭示出我国到本世纪中叶实现人均GDP4 0 0 0— 50 0 0美元时 ,其高等教育发展的模式和主要特征 ,其核心在于为我国高等教育实行可持续发展提供定量化的理论依据和理想目标。最后 ,提出了实现这一目标的政策性建议。国家自然科学基金(79700031);; 国家社会科学基金(00CJL007

上市公司股权融资偏好与经营绩效的实证分析

目前 ,我国上市公司在再融资方式的选择上存在着强烈的股权融资偏好。研究股权融资偏好行为与上市公司经营业绩之间的相关性不仅具有理论上的意义 ,而且对于上市公司、股东和经营者而言 ,都具有重要的实践意义。本文以实证的方法来分析这种相关性 ,结果认为上市公司过度的股权融资将造成其经营业绩的下

System Mode Identification and Simulation of Chinese Sustainable Development in Early 21 Century(2001-2020)

自改革开放以来，中国经济持续高速增长，取得了令人瞩目的成就。但是粗放型经济增长模式带来的环境问题对中国人口、资源、环境可持续发展的制约和压力也愈来愈明显。因此，实现经济增长方式从粗放型向集约型转变是我国实现“三步走”战略的关键，而经济增长方式转变中的人口、资源与环境可持续发展的含义是在不损害未来世代生存所依赖的自然资源基础前提下的发展，其核心在于对传统发展模式进行系统变革，其本质在于不允许通过消耗性地利用自然资本来创造增加财富，而只能靠人力资源的增加，这是一种全新的经济发展模式。 就中国来说，人口、资源、环境及其相互关联的复杂的结构关系是影响可持续发展的重要构成因素集合。因此，要真正实现中国...China has achieved great success with the high economy development speed since the reform and open policy being executed. But the problems of restrictions and pressures on the sustainable development of Chinese population、resources and environment ,which has been brought about by the extensive type of economy development format , are getting clearly. Thus, to realize the transformation from extens...学位：经济学硕士院系专业：经济学院人口研究所_人口、资源与环境经济学学号：20002000

The Relationship of Career Decision-making Anxiety and Self-efficacy with Attribution Style of College Students

择业心理因素及其相互关系对大学生就业有较大影响,对715名大学毕业生择业焦虑、择业自我效能感与择业归因方式的关系及择业自我效能感在择业归因方式和择业焦虑之间的中介作用的调查发现,大学毕业生择业自我效能感对择业焦虑具有显著的负向影响,择业归因方式对择业自我效能感具有显著的正向影响,个人素质类归因方式对择业焦虑具有显著的负向影响,社会支持类归因方式对择业焦虑具有显著的正向影响,择业自我效能感在个人素质和社会支持类归因方式与择业焦虑之间起着显著的部分中介作用,在机会运气、求职知识、个人努力和积极情绪类归因方式与择业焦虑之间起着显著的完全中介作用。Job-hunting psychological factors and their interrelationships have large effects on college students' employment.715 college graduates were measured to find out the relationship of career decisionmaking anxiety and self-efficacy with attribution style as well as the mediation effect of the self-efficacy among the attribution style and anxiety.The results showed that career decision-making self-efficacy had a significant negative impact on career decision-making anxiety,career decision-making attribution style had a significant positive impact on career decision-making self-efficacy;personal quality attribution style had a significant negative impact on career decision-making anxiety;social support attribution style had a significant positive impact on career decision-making anxiety;career decision-making self-efficacy partly mediated the relation of personal quality and social support of career decision-making attribution styles with career decision-making anxiety,while fully mediated the relation of the other four career decision-making attribution styles and career decision-making anxiety

Economics analysis of developing private bank

本文从理论解释层面上分析了我国民营银行对民营经济的影响,认为民营银行的快速发展促进了民营经济增长,并针对如何构建民营银行体系以改善对民营经济的金融支持,提出了率先利率市场化、加快金融创新等若干建议。The paper, through theoretical explanation, studies how Non-governmental banks affect private economy,and concludes that the development of non-governmental banks result in the advance of private economy.Finally, some suggestions on how to develop non-governmental banks are put forward

1.5MW循环流化床锅炉内煤与垃圾混烧的烟气特性

通过对1.5MW循环流化床锅炉内煤与垃圾混烧产生的烟气中的CO、HCl、SO2、NOx、H2O、二口恶英等成分进行在线监测,发现原煤燃烧排放的CO浓度要高于添加垃圾后排放的CO浓度,随垃圾加入比例的增大,不完全燃烧份额增加,相应的CO排放值逐渐提高。由于原煤含硫量远高于垃圾含硫量,因此随着垃圾加入比例的增大,烟气中的SO2浓度有所降低。烟气中HCl浓度随着垃圾加入比例的增大几乎呈直线增加。而烟气中NOx浓度则呈现出含量下降的趋势,这证明循环流化床锅炉可以抑制NOx总量的生成,但N2O的排放浓度会有所增加。此外,随着垃圾加入比例的增大,烟气中的H2O和二口恶英含量也有所增加,成为该工艺实际应用过程中需要考虑的问题

15mw循环流化床锅炉内煤与垃圾混烧的烟气特性

通过对1.5MW循环流化床锅炉内煤与垃圾混烧产生的烟气中的CO、HCl、SO2、NOx、H2O、二口恶英等成分进行在线监测,发现原煤燃烧排放的CO浓度要高于添加垃圾后排放的CO浓度,随垃圾加入比例的增大,不完全燃烧份额增加,相应的CO排放值逐渐提高。由于原煤含硫量远高于垃圾含硫量,因此随着垃圾加入比例的增大,烟气中的SO2浓度有所降低。烟气中HCl浓度随着垃圾加入比例的增大几乎呈直线增加。而烟气中NOx浓度则呈现出含量下降的趋势,这证明循环流化床锅炉可以抑制NOx总量的生成,但N2O的排放浓度会有所增加。此外,随着垃圾加入比例的增大,烟气中的H2O和二口恶英含量也有所增加,成为该工艺实际应用过程中需要考虑的问题。</p

Subwavelength Chiral Spiral Acoustic Metamaterials for a Robust Topological Acoustic Insulator

Topological acoustic insulators enable sound waves to transmit along the surface without backscattering, which builds a new pathway towards sound wave control. However, a large share of topological acoustic insulators are realized based on special point group symmetry and Bragg scattering mechanism. This method not only exerts a restriction on the unit cell design but also requires the lattice constant to be comparable with the wavelength. In this paper, the chiral spiral acoustic metamaterials are constructed based on an Archimedean spiral structure. This structure enjoys subwavelength characteristics and is easy to construct. Taking advantage of the chirality of the spiral structure topological phases with opposite energy flow direction can be constructed. The edge state is formed at the interface composed of the spiral units sharing different chirality, which does not depend on point group symmetry. The topological transportation on the interfaces shows strong robustness despite sharp corners verified by straight and zigzag waveguides. The topological acoustic insulator with a chiral spiral structure provides a 11el strategy for small acoustic devices with robust sound transmission

15mw循环流化床锅炉内煤与垃圾混烧的烟气特性

通过对1.5MW循环流化床锅炉内煤与垃圾混烧产生的烟气中的CO、HCl、SO2、NOx、H2O、二口恶英等成分进行在线监测,发现原煤燃烧排放的CO浓度要高于添加垃圾后排放的CO浓度,随垃圾加入比例的增大,不完全燃烧份额增加,相应的CO排放值逐渐提高。由于原煤含硫量远高于垃圾含硫量,因此随着垃圾加入比例的增大,烟气中的SO2浓度有所降低。烟气中HCl浓度随着垃圾加入比例的增大几乎呈直线增加。而烟气中NOx浓度则呈现出含量下降的趋势,这证明循环流化床锅炉可以抑制NOx总量的生成,但N2O的排放浓度会有所增加。此外,随着垃圾加入比例的增大,烟气中的H2O和二口恶英含量也有所增加,成为该工艺实际应用过程中需要考虑的问题

1.5MW循环流化床锅炉内煤与垃圾混烧的烟气特性

通过对1.5MW循环流化床锅炉内煤与垃圾混烧产生的烟气中的CO、HCl、SO2、NOx、H2O、二口恶英等成分进行在线监测,发现原煤燃烧排放的CO浓度要高于添加垃圾后排放的CO浓度,随垃圾加入比例的增大,不完全燃烧份额增加,相应的CO排放值逐渐提高。由于原煤含硫量远高于垃圾含硫量,因此随着垃圾加入比例的增大,烟气中的SO2浓度有所降低。烟气中HCl浓度随着垃圾加入比例的增大几乎呈直线增加。而烟气中NOx浓度则呈现出含量下降的趋势,这证明循环流化床锅炉可以抑制NOx总量的生成,但N2O的排放浓度会有所增加。此外,随着垃圾加入比例的增大,烟气中的H2O和二口恶英含量也有所增加,成为该工艺实际应用过程中需要考虑的问题