行向、行距对小麦田间光照及产量的影响

以锦麦 2 6 9为试材进行不同行向、行距试验 ,结果表明 :通辽地区采用东西行向种植较南北行向种植群体受光好、产量高 ,适当扩大行距有利于提高单产降低成本     

ROW AND COLUMAN DESIGNS WITH CONTIGUOUS REPLICATES

A method is given for constructing row and column designs for situations where replicates are contiguous. Designs of this type are needed in cotton variety trials. A table of generating arrays is given from which a series of resolvable designs can be constructed; these designs are called latinized α-designs. Some results from cotton variety trials are presented.     

排律诗体文献研究领域的“地图”和“指南针”——沈文凡教授《排律文献学研究（明代篇）》读后

排律研究的成果与排律创作主体人数和作品数量极不相称,可以说,排律研究基本上处于荒漠化状态。《排律文献学研究（明代卷）》之出,极大地填补了排律研究的空白,并为后来者导夫先路。是书构架庞大严谨、资料宏富翔实,文风朴质健朗,颇有＂所向无空阔＂之气度。而其移步换形,为唐代文学研究开疆拓土的学术启示则更具深刻的学理价值。本文仅就阅读此书的感受来论证沈文凡教授《排律文献学研究（明代卷）》筚路樵轮,泽被学人的重要意义。     

Designs for two-colour microarray experiments

Summary.  Designs for two-colour microarray experiments can be viewed as block designs with two treatments per block. Explicit formulae for the A- and D-criteria are given for the case that the number of blocks is equal to the number of treatments. These show that the A- and D-optimality criteria conflict badly if there are 10 or more treatments. A similar analysis shows that designs with one or two extra blocks perform very much better, but again there is a conflict between the two optimality criteria for moderately large numbers of treatments. It is shown that this problem can be avoided by slightly increasing the number of blocks. The two colours that are used in each block effectively turn the block design into a row–column design. There is no need to use a design in which every treatment has each colour equally often: rather, an efficient row–column design should be used. For odd replication, it is recommended that the row–column design should be based on a bipartite graph, and it is proved that the optimal such design corresponds to an optimal block design for half the number of treatments. Efficient row–column designs are given for replications 3–6. It is shown how to adapt them for experiments in which some treatments have replication only 2.     

“行/列约束法”在外贸进出口货柜运输业务上的应用

外贸日常进出口业务活动中,我们经常遇到如何利用物质资源条件,求取并实现最理想目标的问题。本文研究了货柜运输业务上三维装箱问题,给出了一个基于管理数学中“行约法 /列约法”的摆放方法。通过和外贸进出口业务常规计算方法比较,降低了创汇成本,增加了经济效益。同时和其它方法比较发展,我们的方法在实际货柜装箱操作上,方便实用。     

Existence Conditions for Balanced Fractional 2m Factorial Designs of Resolution 2l + 1 Derived from Simple Arrays

We consider a fractional 2^m factorial design derived from a simple array (SA) such that the (? + 1)-factor and higher-order interactions are negligible, where 2? ? m. The purpose of this article is to give a necessary and sufficient condition for an SA to be a balanced fractional 2^m factorial design of resolution 2? + 1. Such a design is concretely characterized by the suffixes of the indices of an SA.     

Variance-balanced row–column designs involving diallel crosses incorporating specific combining abilities for comparing test lines with a control line

In this paper, the problem of comparing t test lines with a control line under a row–column setup in complete diallel cross experiment is investigated when specific combining ability (sca) effect is included in the model. Three classes of Mating-Environmental Row–Column (MERC) designs have been obtained which are variance balanced for estimating the contrasts pertaining to general combining ability (gca) effects free from sca effects.     

佛经与《列仙传》之关系辨

《列仙传》是释道合流的产物。中土文学对佛典散韵结合形式的模仿并非始于唐代之变文,应言《列仙传》首肇其端。我们试从佛道二教渊源、《列仙传》内容、结构体制与佛经的种种微妙关系角度阐释佛经对《列仙传》的深层影响。     

Bayesian clustering for row effects models

We deal with two-way contingency tables having ordered column categories. We use a row effects model wherein each interaction term is assumed to have a multiplicative form involving a row effect parameter and a fixed column score. We propose a methodology to cluster row effects in order to simplify the interaction structure and to enhance the interpretation of the model. Our method uses a product partition model with a suitable specification of the cohesion function, so that we can carry out our analysis on a collection of models of varying dimensions using a straightforward MCMC sampler. The methodology is illustrated with reference to simulated and real data sets.     

《道德经》对斯坦贝克生态思想的影响及其对当代环境危机的启示

中国老子《道德经》深刻地影响了美国小说家约翰.斯坦贝克。文章运用比较文学影响研究的方法,阐明了斯坦贝克与《道德经》的事实联系。在此基础上以《罐头厂街》为例深入分析老子＂道法自然,无为而治＂的生态智慧在斯坦贝克小说创作中的具体表现。指出《道德经》有力地参与了斯坦贝克生态思想的建构,为当代的生态环境危机提供了有力的支援。