青年初期的人格结构研究

以16PF为测量工具分析了青年初期的人格结构,研究发现,青年初期的人格结构在模式上与成人“大五”一致,其模式没有年龄特异性和文化特异性;但在内涵上,内外向性、情绪稳定性和谨慎性这三个维度是稳定的、普遍的,另外两个维度既对经验的开放性和宜人性存在着年龄特异性和文化特异性,分别命名为智慧和现实性。     

学习十六大报告开创民族高等教育新局面

十六大报告从全面建设小康社会,实现中华民族伟大复兴的全局出发,深刻阐述了新时期教育发展的目标和任务,也为我国的民族高等教育提出了更高更新的要求.本文结合十六大报告的有关要求,对民族高等院校如何在新的历史条件下,与时俱进,取得全面的发展提出了一些思路.     

D-optimal minimax regression designs on discrete design space

One classical design criterion is to minimize the determinant of the covariance matrix of the regression estimates, and the designs are called D-optimal designs. To reflect the nature that the proposed models are only approximately true, we propose a robust design criterion to study response surface designs. Both the variance and bias are considered in the criterion. In particular, D-optimal minimax designs are investigated and constructed. Examples are given to compare D-optimal minimax designs with classical D-optimal designs.     

基于TMS320F240芯片的开关磁阻电机调速系统研究

介绍了以TM S320F 240芯片为核心的高性能数字化SRD控制器的设计,给出了硬件电路设计方案和软件实现策略,并对功率电路的工作原理作了详细分析。     

论政治文明建设的基本原则

十六大指出,社会主义政治文明建设必须坚持三个基本原则:中国共产党的领导、人民当家作主和依法治国有机统一;立足国情,吸收和借鉴人类政治文明的有益成果,坚持创新;积极稳妥,循序渐进.深入学习、领会这三大基本原则及其精神,对于如何开展社会主义政治文明建设具有重要的指导作用.     

对十六大报告中若干领导观的思考

十六大报告在新的历史条件下坚持和发展了领导就是服务 ,领导就是表率 ,领导必须相信和依靠群众 ,领导必须与时俱进等马克思主义领导观。对此 ,广大领导干部应该认真学习和领会 ,从而不断更新观念 ,有效地带领人民群众去努力实现全面建设小康社会的奋斗目标。     

On the detection of changes in autoregressive time series I. Asymptotics

Various test statistics are discussed which can be used for detecting changes in the parameters of an autoregressive time series. In this first part of our study, the limiting behavior of the test statistics is derived under the null hypothesis of no change as well as under alternatives. In a forthcoming second part of our investigation, these asymptotic results will be compared to some corresponding bootstrap procedures, and a small simulation study will be conducted.     

A nonparametric repeated significance test with adaptive target sample size

In this article a general result is derived that, along with a functional central limit theorem for a sequence of statistics, can be employed in developing a nonparametric repeated significance test with adaptive target sample size. This method is used in deriving a repeated significance test with adaptive target sample size for the shift model. The repeated significance test is based on a functional central limit theorem for a sequence of partial sums of truncated observations. Based on numerical results presented in this article one can conclude that this nonparametric sequential test performs quite well.     

Pooling multivariate data under W, LR and LM tests

Two independent random samples are drawn from two multivariate normal populations with mean vectors μ1 and μ2 and a common variance-covariance matrix Σ. Ahmed and Saleh (1990) considered preliminary test maximum likelihood estimator (PMLTE) for estimating μ1 based on the Hotelling's T _N ², when it is suspected that μ1=μ2. In this paper, the PTMLE based on the Wald (W), Likelihood Ratio (LR) and Lagrangian Multiplier (LM) tests are considered. Using the quadratic risk function, the conditions of superiority of the proposed estimator for departure parameter are derived. A max-min rule for the size of the preliminary test of significance is presented. It is demonstrated that the PTMLE based on W test produces the highest minimum guaranteed efficiencies compared to UMLE among the three test procedures.     

尖镰孢菌F.oxysporum L19内切纤维素酶诱导碳源的研究

以在自然界中筛选到的一株产纤维素酶的丝状真菌尖镰孢菌F.oxysporumL19为材料,定时测定尖镰孢菌在10种碳源中的纤维素酶活力,发现酶的合成受培养基中碳源种类的调节控制。结构相对完整的纤维类物质(微晶纤维素、TYPE50、CMC、醋酸纤维素)诱导活性较高,二糖(乳糖、麦芽糖、蔗糖)和单糖(葡萄糖和D-木糖)几乎没有诱导作用,麸皮汁液体培养液表现出了较高的诱导活力。菌丝在麸皮汁培养液上的生长状况的研究表明,菌丝的生长情况与酶的产生存在不同步性。这为下一步酶的纯化和分子生物学的研究中选择不同生长期的培养也提供了依据。