屠隆与普陀十二景

普陀山雄奇幽灵的自然景观，经历代文人题咏，便有了人文品格，成为山水风景社会化的显著标志。明代戏剧家屠隆首题普陀山十二景，并且是《普陀十二景诗》的始作俑者，对后世有较大影响。     

Simple inference in multinomial and ordered logit

This paper provides some simple methods of interpreting the coefficients in multinomial logit and ordered logit models. These methods are summarized in Propositions concerning the magnitudes, signs, and patterns of partial derivatives of the outcome probabilities with respect to the exogenousvariables. The paper also provides an empirical example illustrating the use of these Propositions.     

Possibilities for Using the Internet in Japanese Education in the Information Age Society

As the globalization of the economy has accelerated in recent years, the Internet has become an essential part of the infrastructure, primarily as a communications medium. In the Information Age society, the ADC principle (autonomy, distribution, and collaboration) has become an underlying assumption, which also applies to the institution of education. The fading power of Japan may come from its educational system, which emphasizes standardization and uniformity, while discouraging creativity and individuality. Now is the time for Japan to reevaluate its educational system at every level so that it better supports the societal and business needs of the Information Age economy. Therefore, this paper proposes five kinds of changes to the Japanese educational system. They are community networks, digital kids and participatory education, growing up digital and youth education, online higher education, and media literacy education for the elderly. First, community networks provide citizens with better and more convenient access to local services, activities, and information. Second, the notion of the digital kid suggests that it should be participatory, including all members of the community. Third, as digital kids grow up digital using the Internet would enhance both intergenerational and intra‐generational communication in the twenty‐first century. Fourth, online higher education should become widely available in Japanese society in the twenty‐first century. Fifth, although media literacy education for the elderly in Japan is yet to come to its maturity, senior network groups are beginning to receive wider attention as they will provide Japanese elderly with a new avenue for communication. When and only when these educational reforms are pursued, will Japanese people be able to participate effectively in the global society.     

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.     

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.     

宽带信号采样的关键技术研究

提出了一种实现宽带信号实时采样的技术原理和应用设计方法;论述了混合滤波器组技术对传统并行交替采样结构进行非均匀采样的校准处理,多通道采样的时钟与触发同步机制,以及分相存储实现大容量采样数据存储等研究内容;给出了系统的可行性设计。     

二溴羟基苯基荧光酮分光光度法测定痕量钴的研究

本文研究了在CTMAB及Cl~-存在的情况下,二溴羟基苯基荧光酮光度法测定痕量钴的方法。在pH=9～11范围内,Co(Ⅱ)与显色剂形成1:5的蓝色配合物,其最大吸收波长位于640nm,表观摩尔吸光系数为1.4×10~5。钴量在0～14μg·50mL~(-1)范围内符合比耳定律。本法应用于猪肝中痕量钴的分析,结果令人满意。     

烧结温度对CaCu3Ti4O12性能的影响

传统的烧结法，经850℃、980℃预烧和1000℃-1125℃烧结制备了CaCu3Ti4O12巨介电常数陶瓷．通过X射线衍射（XRD）对体系进行了结晶性能和形貌测试，用阻抗分析仪对试样在50—300K范围内的介电性能进行了测试．研究结果表明：CaCu3Ti4O12的介电常数直接受材料的结晶程度、晶粒大小及致密度控制．通过改善预烧粉末先驱体的结晶程度、提高材料的晶粒尺寸和致密度、改善烧结样品的结晶程度可以获得性能优良的材料．结晶完整，晶粒尺寸大及致密度高的CaCu3Ti4O12在较大的温区范围具有高的介电常数．     

The effect of mixing-distribution misspecification in conjugate mixture models

Parametric mixture models are commonly used in the analysis of clustered data. Parametric families are specified for the conditional distribution of the response variable given a cluster-specific effect, and for the marginal distribution of the cluster-specific effects. This latter distribution is referred to as the mixing distribution. If the form of the mixing distribution is misspecified, then Bayesian and maximum-likelihood estimators of parameters associated with either distribution may be inconsistent. The magnitude of the asymptotic bias is investigated, using an approximation based on infinitesimal contamination of the mixing distribution. The approximation is useful when there is a closed-form expression for the marginal distribution of the response under the assumed mixing distribution, but not under the true mixing distribution. Typically this occurs when the assumed mixing distribution is conjugate, meaning that the conditional distribution of the cluster-specific parameter given the response variable belongs to the same parametric family as the mixing distribution.