政令与民俗——以民国年间废除阴历为中心的考察

民国纪元之始,即下令废除阴历,颁行阳历。然整个民国时期,阴、阳历法事实上并行。阴历废而不止,表面上缘由在于阴历与民情习惯的调适,深层的根源则是阴历作为民俗“以传统的力量捍卫传统”,故远不是一纸政令就能取消的。阳历虽然经过政令的发布、推行在法律上得以确立。然阴历凭借民众习俗这一强大、丰腴、潜在的社会土壤始终存在,至今不衰。其中,政令与民俗之关系发人深思。     

城市大型热源联网运行管网布置方案及水力工况比较

城市大型热源联网运行具有明显的社会、环境和经济效益．能有效地提高集中供热的安全性和质量．本文在分析联网运行制约因素的基础上．提出了一种新的联网方案：串联热源的同程式供热管网方案．该方案通过相互间加热网水．联网的各热源将各自的热最转移到城市的集中供热管网．各供热区间的管网布置为同程式．本文对其进行了初步的分析和研究．并着重讨论厂其在水力工况和水力稳定性方面的性质．     

Sample Size and Power Calculation in Comparing Diagnostic Accuracy of Biomarkers with Pooled Assessments

When testing of a biomarker is costly, pooling of samples becomes a useful and efficient alternative (Faraggi et al., 2003). In this paper, we develop procedures for sample size and power calculations for planning a study comparing the accuracy of biomarkers in diagnosis of diseases with pooled samples. Explicit formulas are derived for several important pooling strategies. The effects of pooling samples on sample size and power of the test are also discussed.     

《红楼梦》两部英译本称谓翻译及其差异探究

文章通过对《红楼梦》两部英译本A Dream of Red Mansions和The Story of the Stone中称谓翻译的研究,探讨并说明《红楼梦》的两位译者之所以在称谓上采用不同的译法不仅仅因为两位译者不同的文化身份,而且还与译文的翻译目的、预期读者以及翻译环境有关.     

口碑传播研究综述及其在网络环境下的研究初探

随着平民传播时代的到来,口碑传播研究再次兴起,尤其是电子口碑传播的研究,引起了实践界和理论界极大的关注。为此,从口碑传播的内涵、理论、主体、客体、效果、过程和研究方法等几个方面,通过对国内外有关经典口碑传播和电子口碑传播的研究进行系统性的梳理和评述,并在此基础上提出一个综合性理论框架解释电子口碑传播行为模式。     

预氧化对多孔碳化硅陶瓷抗氧化及抗热震性的影响

考察了多孔碳化硅陶瓷的抗氧化性及抗热震性,探讨了不同制造工艺对多孔碳化硅陶瓷抗氧化性及抗热震性的影响。研究了SiC陶瓷在热处理过程中SiC颗粒表面氧化形成的SiO_2在不同热处理温度的状态变化及其对试样抗热震性的影响。     

Electricity consumption changes following solar adoption: Testing for a solar rebound

We use household-level data to explore residential electricity use patterns following installation of solar panels. Solar adoption leads to an increase in total electricity consumption relative to a matched non-adopting control group. Our point estimate translates to a rebound effect of 28.5%, suggesting that nearly a third of the electricity produced by a customer's solar panels is used for increased energy services, rather than reduced grid electricity consumption. We explore several potential drivers of an increase in electricity consumption. These results have important implications for electricity planning and policy, suggesting that rooftop solar stimulates additional demand for electricity.     

中国太阳能产业专利发展战略研究

通过分析太阳能产业专利发展的战略思想、战略目标、战略阶段,提出太阳能产业专利战略发展实施方案,即应该营造良好的专利发展的思想意识环境,积极运用专利收买战略与交叉许可战略,逐步构建专利网,建立产业专利联盟,以更好地促进中国太阳能产业的长足发展。     

Optimal Composite Markers for Time‐Dependent Receiver Operating Characteristic Curves with Censored Survival Data

Abstract. To increase the predictive abilities of several plasma biomarkers on the coronary artery disease (CAD)‐related vital statuses over time, our research interest mainly focuses on seeking combinations of these biomarkers with the highest time‐dependent receiver operating characteristic curves. An extended generalized linear model (EGLM) with time‐varying coefficients and an unknown bivariate link function is used to characterize the conditional distribution of time to CAD‐related death. Based on censored survival data, two non‐parametric procedures are proposed to estimate the optimal composite markers, linear predictors in the EGLM model. Estimation methods for the classification accuracies of the optimal composite markers are also proposed. In the article we establish theoretical results of the estimators and examine the corresponding finite‐sample properties through a series of simulations with different sample sizes, censoring rates and censoring mechanisms. Our optimization procedures and estimators are further shown to be useful through an application to a prospective cohort study of patients undergoing angiography.