Some new constructions of strength 3 mixed orthogonal arrays

Orthogonal arrays of strength 3 permit estimation of all the main effects of the experimental factors free from confounding or contamination with 2-factor interactions. We introduce methods of using arithmetic formulations and Latin squares to construct mixed orthogonal arrays of strength 3. Although the methods could be well extended to computing larger arrays, we confine computing to at most 100 run orthogonal arrays for practical uses. We find new arrays with run sizes 80 and 96, each has many distinct factor levels.     

An easy way to tell what you are esting in analysis of variance

Least squares regression models are often used to analyze unbalanced fixed effect data sets with u unique cells defined by design or by post-hoc stratification. Constraints exist among the regression coefficients if there are more coefficients than cells. Models with fewer linearly independent regression coefficients than cells or with empty cells impose constraints on estimated cell means. An easy method of determining constraints among the estimated cell means and among the estimated regression coefficients for any model is developed and illustrated using a small data set.     

Hypothesis testing for two-group incomplete-data growth curve problems

Using simulation techniques, the null distribution properties of seven hypothesis testing procedures and a comparison of their powers are investigated for incomplete-data small-sample growth curve situations. The testing procedures are a combination of two growth curve models (the Potthoff and Roy model for complete data and Kleinbaum's extention to incomplete data) and three estimation techniques (two involving means of existing observations and the other using the EM algorithm) plus an analysis of a subset of complete data. All of the seven tests use the Kleinbaum Wald statistic, but different tests use different information. The hypotheses of identical and parallel growth curves are tested under the assumptions of multivariate normality and a linear polynomial mean growth curve for each of two groups. Good approximate null distributions are found for all procedures and one procedure is identified as empirically most powerful for the situations investigated.     

Low-risk opportunity recognition from mature technologies for SMEs

It is common that SMEs recognize low-risk technological arbitrage opportunities in mature technologies, enter the global market, and occupy significant market shares. This opportunity is characterized by imitable technology complexity, market insignificance for oligopoly companies, and technology maturity. We propose a new and systematic method to recognize the most appropriate low-risk technological arbitrage opportunities for SMEs. The four-phase opportunity recognition procedure consists of technology complexity analysis, market appropriateness analysis, technology maturity analysis, and organizational fit analysis using empirical measures and analytic tools. An illustrative example of a company searching for technological arbitrage opportunities in semiconductor equipment is provided.     

Least Squares estimation for the multivariate weibull model of bougaard based on accelerated life test of system and component

Accelerated life testing of products quickly yields information on life. In this article, we present a simple method to incorporate the information collected from accelerated life tests of both components and (series) systems. The multivariate Weibull distribution of Hougaard is applied to model lifetimes of components. Least-squares (LS) estimators of the model parameters and their joint asymptotic distribution are derived. The effects of the dependence parameter and the proportion of the system-data to the asymptotic relative efficiencies of the LS estimators are investigated.     

集群融资：破解欠发达地区中小企业“融资难”——兼谈鄱阳湖生态经济区建设融资问题

中小企业发展面临着＂融资难＂的问题,其主要原因是交易成本高与信息不对称。针对这些原因,有观点提出要发展民间融资与成立中小金融机构。但是,欠发达地区在这两个方面都不具有优势,迫切需要在金融之外找到答案。因此,抓住建设鄱阳湖生态经济区过程中将会形成不同产业集群的历史机遇,以产业集群为依托,发展中小企业集群融资模式,可以有利于解决融资难问题。     

城市商业银行与中小企业的信贷博弈研究

中小企业在我国经济建设中起着不可低估的作用,也是城市商业银行的主要服务对象。但是由于中小企业的特点,城市银行和中小企业之间存在着更为严重的信息非对称,从而加大了银行的风险,也限制了中小企业在我国经济建设中作用的发挥。为了解决这一问题,本文从信息经济学的角度对城市商业银行与中小企业的信贷博弈进行了研究,并进行分析,对城市商业银行选择占优战略进行了阐述。     

陕西省中小企业培训困境与对策

在对陕西省部分中小企业的培训状况进行调查的基础上,分析了当前陕西省中小企业培训面临的困境及其原因,并借鉴了国内外一些企业培训成功的案例,由此提出了解决陕西省中小企业培训困境的具体对策。     

论二十世纪初小诗体的艺术建构

二十世纪二十年代在中国诗坛上兴起的以冰心、宗白华为代表的小诗体创作的热潮,作为现代诗歌革命的一种阶段性的收获,达成了现代诗神与形两者相对平衡的艺术效果,唤醒了传统诗灵,但是由于缺乏一种文体类型应该具有的体的自觉与规范而告一段落。小诗体的矛盾运作过程诠释的是一个个热情的、寂寞的诗灵在寻找躯体的历史,为在古今中外的文化建构之中找寻新诗体的突围之路提供了可贵的教训和借鉴。     

滁州市中小企业发展现状与对策研究

通过对滁州市中小企业发展的优势分析,结合滁州市中小企业的发展现状深入剖析存在的问题,并针对这些问题从政府部门支持、企业提高自身素质、完善金融服务等方面提出了相应的对策建议。