A monte carlo evaluation of response surface analysis based on paired-comparison data

The use of the logit transformation on paired-comparison data in the weighted least squares analysis of response surfaces for aesthetic qualities of products is discussed. Monte Carlo simulations are employed to investigate the small sample properties of the estimators and test statistics. A secondary objective of the Monte Carlo simulations is the comparison of two transformation procedures. The simulations are of standard-item paired-compar-ison experiments in which ties are not allowed.     

Plans for blocking and fractions of nested cube designs

Plans for implementing nested cube designs invoiving 3 to 5 factors within moderate sized blocks are eveloped. Fractionsc of 1/2 and 1/4 replicates of components of the generic design are used. Suggestions for data analysis are offered.     

积极开发生态童装 提升中国制造童装国际竞争力

随着人们健康意识及环保意识的不断增强,健康、安全的生态童装日益受到关注。为避免出口童装被通报召回等贸易摩擦事件的发生,我国童装生产企业应结合相关国际童装安全标准,对童装进行科学设计并选用绿色环保的面料及辅料,以促进生态童装的研发以及提升中国制造的童装在国际市场的竞争力。     

浅埋大跨黄土隧道下穿公路方案比选

以大跨黄土隧道下穿公路安全施工为背景,对隧道下穿公路的安全施工方案进行研究。基于公路路面破损指数与下穿公路施工风险事件引起路面最大沉降之间的关系确定了隧道下穿施工可能引起的路面最大允许沉降量,并据此制定出施工管理基准,对比分析了CRD和CD法引起的隧道拱顶沉降、地表最大沉降、支护受力和隧道周边地层塑性区特征,建议采用CD法进行下穿施工。下穿孙辛路施工监测结果表明,采用CD法保证了隧道施工安全和孙辛路的正常通行。     

Assessing the effects of land use and land cover patterns on thermal conditions using landscape metrics in city of Indianapolis,United States

Direct applications of remote sensing thermal infrared (TIR) data in landscape ecological research are rare due to limitations in the sensors, calibration, and difficulty in interpretation. Currently there is a general lack of methodology for examining the relationship between land surface temperatures (LST) derived from TIR data and landscape patterns extracted from optical sensors. A separation of landscapes into values directly related to their scale and signature is a key step. In this study, a Landsat ETM+ image of Indianapolis, Unites States, acquired on June 22, 2000, was spectrally unmixed (using spectral mixture analysis, SMA) into fraction endmembers of green vegetation, soil, high albedo, and low albedo. Impervious surface was then computed from the high and low albedo images. A hybrid classification procedure was developed to classify the fraction images into seven land use and land cover (LULC) classes. Using the fractional images, the landscape composition and pattern were examined. Next, pixel-based LST measurements were correlated with the landscape fractional components to investigate LULC based relationships between LST and impervious surface and green vegetation fractions. An examination of the relationship between the LULC and LST maps with landscape metrics was finally conducted to deepen understanding of their interactions. Results indicate that SMA-derived fraction images were effective for quantifying the urban morphology and for providing reliable measurements of biophysical variables. LST was found to be positively correlated with impervious surface fraction but negatively correlated with green vegetation fraction. Each temperature zone was associated with a dominant LULC category. Further research should be directed to the theoretical and applied implications of describing such relationships between LULC patterns and urban thermal conditions.

中国进口反倾销调查对外国直接投资的影响——基于中国化工行业的实证分析

化工行业是全球反倾销的重点领域,也是目前我国进口反倾销调查的主要对象,占到案件总数的70%以上。同时,这些产品多数是我国目前急需的基本原材料,且国内市场供不应求。本文以我国化工行业遭受国外倾销产品的冲击,以及进口反倾销所引致的化工行业外国直接投资的流量与战略变化等问题为出发点,通过选取中国化工行业最大的外商投资企业——德国巴斯夫(BASF)公司的个案,以及运用总体和分行业数据对进口反倾销调查与外国直接投资关系的实证检验与评估,揭示了两者之间的关系,并进一步提出进口反倾销调查与外国直接投资相协调的政策建议。     

论《王贵与李香香》的版本变迁与文本修改

20世纪40年代出现在延安"解放区"的叙事诗歌《王贵与李香香》,随着建国前后"新的人民文艺"建设及其文本的"经典化"过程,以及当代中国社会及其意识形态的变迁,作品版本也经由出版者及作者的多次修改而形成了不尽相同的文学版本及其文本形态.本文从文献学及版本资料研究的角度着手,通过对其作品版本的流传及其变迁与文本修改的汇校及分析,探讨不同时期及其时代背景之下"当代文学"的政治印记及意义变化,以及中国当代叙事诗歌的艺术建构及其文学史叙述等.     

Linear scalar-on-surface random effects regression models

Many research fields increasingly involve analyzing data of a complex structure. Models investigating the dependence of a response on a predictor have moved beyond the ordinary scalar-on-vector regression. We propose a regression model for a scalar response and a surface (or a bivariate function) predictor. The predictor has a random component and the regression model falls in the framework of linear random effects models. We estimate the model parameters via maximizing the log-likelihood with the ECME (Expectation/Conditional Maximization Either) algorithm. We use the approach to analyze a data set where the response is the neuroticism score and the predictor is the resting-state brain function image. In the simulations we tried, the approach has better performance than two other approaches, a functional principal component regression approach and a smooth scalar-on-image regression approach.     

The need for knowledge modification in technology change: a framework to consider changes in domain complexity,knowledge and productivity

This paper researches productivity in relation to domain complexity and the present knowledge capacity in an organisational context. The study is based on five very different case studies. Three studies are conducted in Denmark, Germany, Mexico and China and are related to knowledge transfer in the relocation of manufacturing facilities. Two studies investigate operation and automation of oil and gas production in the North Sea. The case study method involves semi-structured interviews, surveys, an analysis of historical production data and observations. Based on the findings from the field studies, the paper develops a conceptual framework that management can use for discussions of productivity, development of knowledge and design of learning programmes when considering changes in the complexity of a domain or a change in knowledge.     

关于何其芳的文稿修改——以诗集《夜歌》和论文《关于现实主义·序》为例

何其芳整理重版自己的旧稿,尤其是1940年代在延安、重庆时的诗文时,有较多的删、改、增。本文以诗集《夜歌》和长篇论文《关于现实主义.序》为例,说明何其芳作品不同版本的修改情形,从而在一个特殊角度折射社会政治形势、时代思潮的变动与作家的创作、文化心态之间的互动关系。