D-distribution and its applications

We derive the distribution of the sum ofn independent doubly truncated Poisson variables not necessarily identically distributed. This distribution is called a D-distribution. Its p.d.f. can be expressed in terms of a D-number and an incomplete exponential function which are both defined in this paper. We investigate the relationship between these numbers and distributions, and use these relationships to derive recurrence relations and other properties of the D-distribution. A minimum variance unbiased estimates of the p.d.f. of this D-distribution is also obtained. Some example are included at the end to illustrate the use of this D-distribution.     

An Effective Statistical Approach for Comparative Risk Assessment1

Comparative risk assessment is an evaluation process designed to rank environmental problems based on the severity of potential hazards. The purpose of this paper is to provide an effective statistical approach to analyze perceived environmental risks. Environmental problems, evaluative criteria, and other potential moderator variables need to be determined first, and then the risk perception data collected. Repeated measures analysis is used to first test for interactions between environmental problems and potential moderator variables. If there are no significant interactions, then the risk difference among environmental problems is tested unconditionally; otherwise the risk difference is tested conditionally. Cluster analysis for environmental problems is performed only when the risk difference is significant. The clustering results can be objectively determined by using the simultaneous T² confidence intervals. Risk-based priority setting is made according to the clusters obtained. To illustrate this approach, an empirical study of comparative socioeconomic risks in Taiwan was conducted. Socioeconomic impacts areas including social security, quality of life, production cost, investment willingness, and economic resources are used as evaluative criteria. Results indicate that selected impact areas do affect relative risk differences among 24 environmental problems, and the difference is significant for each area. Therefore, cluster analysis is conducted separately for each impact area. Risk-based priority settings for clusters of environmental problems are reported.     

试论学位论文资源的开发与利用

博硕士学位论文具有很高的信息价值,也是科研人员的重要参考文献。如何合理地开发和利用这些信息资料,在现有条件下实现优化管理是当前图书工作面临的一个现实问题。高校图书馆利用80/20法则管理学位论文可以更好地利用信息资源,发挥高校的科研优势,取得最佳管理效果,值得应用和推广。     

SZ and CMB reconstruction using generalized morphological component analysis

In the last decade, the study of cosmic microwave background (CMB) data has become one of the most powerful tools for studying and understanding the Universe. More precisely, measuring the CMB power spectrum leads to the estimation of most cosmological parameters. Nevertheless, accessing such precious physical information requires extracting several different astrophysical components from the data. Recovering those astrophysical sources (CMB, Sunyaev–Zel’dovich clusters, galactic dust) thus amounts to a component separation problem which has already led to an intensive activity in the field of CMB studies. In this paper, we introduce a new sparsity-based component separation method coined Generalized Morphological Component Analysis (GMCA). The GMCA approach is formulated in a Bayesian maximum a posteriori (MAP) framework. Numerical results show that this new source recovery technique performs well compared to state-of-the-art component separation methods already applied to CMB data.     

物联网技术在统计数据采集中的应用探索

本研究通过统计业务与物联网技术的结合,利用统计学和物联网技术的理论和方法,构建了一套将物联网技术应用于统计数据采集工作的技术路线,通过使用现代物联网技术包括射频技术、光电技术、二维码技术、无线网络技术、电子代码技术等,一方面,使得物联网数据的采集更为准确和便捷;另一方面,通过现代技术获取海量数据,可以弥补传统数据采集方法单一、数据丢失及可得数据维度低数量少等缺陷,这对实现当前统计业务工作的高效、准确、便捷具有重要的现实意义。     

African American and European American Women's Marital Well‐Being

Using a sample of 247 African American and European American women in their 3rd year of marriage, this study compared the predictors of marital well‐being for each group by focusing on the influences of individual, interpersonal, and social and economic resources. Regression analyses revealed that emotional health (individual), trusting one's spouse (interpersonal), and feeling underbenefited in the relationship (interpersonal) were significant predictors of marital well‐being for both groups of women. Physical health (individual) and in‐law relations (social and economic), however, affected the marital well‐being of only African American women. Findings from this study suggest the need to examine marital well‐being within the context of race.     

清末民初基督教在山东的传播与山东的教育文化现代化

教育作为文化传播的主要形式之一 ,通过受众对社会变迁的影响极大 ,清末民初基督教在山东的传播形式的变化 ,致使教会教育在山东普遍兴起 ,并由此开启了山东教育文化现代化的进程。随着教会教育的发展 ,国立新式教育的起步 ,两种教育形式形成了相互竞争 ,相互促进的态势 ,进一步推动了山东教育文化现代化的进程。     

借鉴发达国家农业改革的经验保护我国农业

WTO成立后 ,为了适应世界贸易自由化的趋势 ,欧、美、日等发达国家对其农业保护政策进行了成功的改革 ,使其农业保护政策在WTO框架下得以继续实施。我国在加入WTO后可以借鉴这一成功经验 ,采取切实有效的措施对我国的农业进行必要的支持与保护     

涤锦复合丝与棉灯芯绒的风格测试及分析

对以棉为原料的传统灯芯绒和以涤锦超细复合丝为原料的灯芯绒进行FAST风格测试,并应用SPSS软件进行风格测试数据分析,研究不同原料使灯芯绒面料风格上产生的差异,以使涤锦超细复合丝在灯芯绒面料上应用更好更广泛.     

略论党的根本宗旨的与时俱进性

全心全意为人民服务是中国共产党领导中国革命和建设的根本宗旨,它反映了中国共产党与其它党派的本质区别,在党的历史上发挥了巨大的作用;“三个代表”重要思想中关于中国共产党代表最广大人民根本利益和执政为民的内容,则是对党的根本宗旨在新的历史条件下作出的新的表述和重大发展,既体现了我党根本宗旨的深刻历史渊源,又反映了党与时俱进的理论品格。