The Incremental Group Testing Model for Gap Closing in Sequencing Long Molecules

In this paper, we propose the incremental group testing model for the gap closing problem, which assumes that we can tell the difference between the outcome of testing a subset S, and the outcome of testing S {x}. We also give improvements over currently best results in literature for some other models.     

企业理财系统相关性研究

企业理财系统相关性由企业理财内容循环的相关性、企业理财过程循环的相关性、企业理财内容循环与过程循环的相关性构成.研究企业理财系统相关性,对探索企业理财系统及规律性、增强企业理财系统柔性及提高企业经济效益都有着重要的实际指导意义和理论价值.     

A correlation-theoretical interpretation of schur analysis

This paper is heavily leaned on the author's recent investigations concerning SCHUR analysis of non-negative Hermitian block matrices. The parameters of the matrix balls and the triangular choice scheme which describe a non-negative Hermitian block matrix will be interpreted in the framework of correlation theory     

Superiority comparisons between mixed regression estimators

This paper gives necessary and sufficient conditions for a mixed regression estimator to be superior to another mixed estimator. The comparisons are based on the mean square error matrices of the estimators. Both estimators are allowed to be biased.     

利用Teager-Kaiser算子的多径信号抑制

为了解决多径干扰对无线定位精度的影响,该文在传统的窄带相关技术的基础上,利用TK算子对其进行改进。改进后的技术在不过多地增加计算负担的情况下,不仅保持了窄带相关技术对于长时延多径信号抑制的功能,而且还改善了其对短时延多径信号抑制效果不佳的缺陷。仿真结果证明,该算法对于无线信道的多径信号抑制起到了一定的改善作用,从而提高了无线定位精度。所以,该研究对于无线定位技术的工程应用和理论研究具有一定的参考价值。     

Small area estimation: the EBLUP estimator based on spatially correlated random area effects

This paper deals with small area indirect estimators under area level random effect models when only area level data are available and the random effects are correlated. The performance of the Spatial Empirical Best Linear Unbiased Predictor (SEBLUP) is explored with a Monte Carlo simulation study on lattice data and it is applied to the results of the sample survey on Life Conditions in Tuscany (Italy). The mean squared error (MSE) problem is discussed illustrating the MSE estimator in comparison with the MSE of the empirical sampling distribution of SEBLUP estimator. A clear tendency in our empirical findings is that the introduction of spatially correlated random area effects reduce both the variance and the bias of the EBLUP estimator. Despite some residual bias, the coverage rate of our confidence intervals comes close to a nominal 95%.     

我国中小企业国际化成长相关因素的实证分析

选取深圳证券交易所中小企业71家上市公司为样本，考察了我国中小企业国际化成长的影响因素。研究结果显示我国中小企业国际化成长与企业创业时间无关，与企业高管层的国际化知识经验水平及企业外资背景正相关，与企业资本／劳动比率和技术水平负相关。劳动密集型企业的国际化进程要优于资本密集型和高技术型企业。我国中小企业应提升高管层的国际化知识和经验水平，充分发挥“新生学习优势”，从国际化的过程中增强对国际市场机会的判断和利用能力；同时，利用外资开展内向国际化，是提高外向国际化水平的有效途径。     

On the analysis of multivariate repeated measures designs

The relationship between the mixed-model analysis and multivariate approach to a repeated measures design with multiple responses is presented. It is shown that by taking the trace of the appropriate submatrix of the hypothesis (error) sums of squares and crossproducts (SSCP) matrix obtained from the multivariate approach, one can get the hypothesis (error) SSCP matrix for the mixed-model analysis. Thus, when analyzing data from a multivariate repeated measures design, it is advantageous to use the multivariate approach because the result of the mixed-model analysis can also be obtained without additional computation.     

Phase-shifting common cycles and common trends

In this paper, we outline a framework for modelling and analysing economic fluctuations and dynamics. It is assumed that there may exist common trends and common cycles in the time series to be analysed It is further generalised that common cycles may have non-coincident, or phase-shifting attributes These attributes are examined via the Markov transition matrix in a VAR system, revealing the way in which the phase-shifting works with the reduced rank Markov transition matrix. The links with the structural common trend model are also presented.     

川中丘陵区小麦品种绵阳26号的产量构成因素分析

运用相关、通径分析的方法分析了四川省小麦主推品种绵阳 2 6号的产量及其构成因素之间的关系。结果表明 ,绵阳 2 6号小麦品种千粒重的变异不大 ,穗粒数是产量构成的最重要因素 ,合理的有效穗是高产的前提。