锌表面Mo(W)-S-Zn簇合物膜的XPS和AES研究

在锌表面获得了多种不同颜色且具有金属光泽的不溶性Mo(W)-S-Zn簇合物转化膜,所获膜层具有良好的耐蚀性能和装饰效果,加热处理后颜色将发生变化,加速腐蚀试验结果表明,金黄色膜耐蚀性最佳。FT-IR、FT-Raman、XPS和AES分析表明,该膜层厚度约为60nm。钼在膜表面的价态为+6价,而在膜内则以+6、+4价共存。从AES深度分布曲线可知,其组成为32.5％Zn,19.3％Mo,39.4％S,8.5％O。膜为多分子层组成的复杂体系,其颜色是各组分统计分布的结果。     

濒危状态的赫哲语

赫哲人的语言观念如何,濒危状态的赫哲语掌握者的比例、地理分布、年龄结构、语言能力等特征都是濒危状态赫哲语值得探讨的问题。     

工业企业经济效益综合评价与分析

利用SPSS软件,对我国31个省、直辖市的大中型工业企业的总资产贡献率、成本费用利润率、资本保值增值率、流动资产周转次数、全员劳动生产率、产品销售率、资产负债率、总资产周转率、净资产收益率、销售利润率等十个经济效益指标进行了因子分析,并将这十个指标归结为盈利、销售、运营、发展等多个因子。最后,根据每个因子得分情况将所有地区归为六类,进而做出综合评价。     

A general inverse sampling scheme and its application to adaptive cluster sampling

Not having a variance estimator is a seriously weak point of a sampling design from a practical perspective. This paper provides unbiased variance estimators for several sampling designs based on inverse sampling, both with and without an adaptive component. It proposes a new design, which is called the general inverse sampling design, that avoids sampling an infeasibly large number of units. The paper provide estimators for this design as well as its adaptive modification. A simple artificial example is used to demonstrate the computations. The adaptive and non‐adaptive designs are compared using simulations based on real data sets. The results indicate that, for appropriate populations, the adaptive version can have a substantial variance reduction compared with the non‐adaptive version. Also, adaptive general inverse sampling with a limitation on the initial sample size has a greater variance reduction than without the limitation.     

哈尔滨市发展绿色食品产业集群的基本条件与优势

产业集群对集群内企业在竞争力提升上有重要作用。哈尔滨市发展绿色食品产业集群,具有得天独厚的地理环境和资源优势,具有大企业集团集中、高校和科研院所较多的优势,及在国内外市场上的品牌和信誉优势。通过绿色食品产业集群的发展壮大,必将提高产品与企业的市场竞争力,推动绿色食品产业的持续发展。     

重庆市培育金融核心区：布局、路径与对策

金融核心区的培育是提升重庆金融集聚力和辐射力以及构建长江上游地区金融中心的关键因素.在审视金融核心区的概念、内涵和重庆市培育金融核心区的必要性、可能性基础上,运用大系统分析方法的原理,提出重庆金融核心区的规划布局和总体思路;基于产业集群理论探讨重庆金融核心区的培育路径与对策.研究认为,培育重庆金融核心区,要在运筹高端金融商务发展体系、夯实现代金融业发展平台、拓展金融业发展空间等三个方面合理布局金融产业,促进形成金融业产业集群,并优化金融生态环境和金融主体结构、强化金融资源共享和政府公共服务职能.     

THE PARTICIPATION DIVIDE: Content creation and sharing in the digital age

This paper looks at the prevalence of creative activity and sharing in an age when the barriers to disseminating material have been considerably lowered compared with earlier times. The authors use unique data to explore the extent to which young adults create video, music, writing and artistic photography, as well as the prevalence of sharing such material online. Findings suggest that despite new opportunities to engage in such distribution of content, relatively few people are taking advantage of these recent developments. Moreover, neither creation nor sharing is randomly distributed among a diverse group of young adults. Consistent with existing literature, creative activity is related to a person's socioeconomic status as measured by parental schooling. The novel act of sharing online, however, is considerably different by gender with men much more likely to engage in it. However, once internet user skill is controlled for, men and women are equally likely to post their materials on the Web.     

A qualitative comparative analysis of strategies for an ageing society, with special reference to pension and employment policies

The primary purpose of this study is to typify the respondent strategies of the OECD countries based on the interconnected structure of income and employment guarantees. More specifically, this article seeks to typify welfare policies into four types (welfare-to-work, welfare emphasis, labour emphasis, market emphasis) based on the leniency of the pension system and active state intervention in employment security. With the resultant four types, this article then places them as the dependent variable while incorporating per capita GDP, aged dependency ratio, pension maturity level, union density, constitutional structure index and degree of decommodification as causal variables. Through this process, this article aims to derive the decisive variable for each type through qualitative comparative analysis.     

国际制造业基地目标与江苏制造业集群培育

对于江苏来说,国际制造业基地目标意味着在10年内制造业国内生产总值将增长2.3倍。如何实现这一极具挑战性的战略目标呢?大力发展制造业产业集群是一个可行的途径。产业集群具有独特的竞争合作机制,能促使成员企业在规模不变的情况下形成高度专业化分工,实现外部规模经济和对资源的充分利用,从而提升整个产业的竞争力。将资源禀赋、产业基础、产业发展空间、地理区位、承接国际制造业转移等因素综合起来考虑,江苏省应当重点发展信息、石化、医药、纺织、装备、汽车及关键零部件等6大制造业集群。     

环渤海经济圈城市群能级梯度分布结构与区域经济发展战略研究

根据增长极理论、梯度转移理论和城市功能理论,构建了城市能级综合评价指标体系,并运用主成分分析法和SPSS软件对环渤海地区内的各城市进行了城市能级的综合评价,在此基础上又采用系统聚类分析法得到了环渤海经济圈城市群的层级分布结构,最后根据研究结果和相关理论提出了环渤海地区区域经济非均衡发展的建议和策略.