寿命型产品可靠性的管理工程

本文采用系统工程方法,为寿命型产品的可靠性管理建立了一个连续和离散模型,以用来预测和评估可靠性。供实现产品科学管理和小子样系统可靠性研究之用。     

低氧化亚氮燃烧研究的现状与未来

本文评述了Ｎ２Ｏ研究的最新成果，提出了今后在该领域的研究和发展方向。     

用系统工程优化工艺提高转杯纺纱质量

用系统工程的方法，研究棉纺系统工程，从棉纺系统的角度分析影响ＯＥ８３．３ｔｅｘ质量的因素是粗节和棉结，制定了两套ＯＥ８３．３ｔｅｘ的工艺试验方案，阐述了两试验方案的结果，从理论上和实践上论述了方案Ｉ的合理性，并把它应用于实践进行工艺优化，从而达到提高转杯纺棉纱质量的目的。     

半球向全发射率和定向吸收率的测试研究

根据动态卡计法原理设计了可同时测定金属材料和以金属材料为底材的涂层在50～300℃温度范围内的半球向全发射率和定向吸收率的实验装置。该装置用单板机采集和处理数据,可一次直接测得发射率和吸收率两个重要数据及其随温度的变化情况。     

用TP801实现电视发射机的自动控制

本文提出了用TP801微机对电视发射机进行自动控制的微机值机系统,介绍了该系统构成及功能、硬件配置、软件功能及抗干扰措施等。本控制系统功能强、成本低、控制效果良好,是当前省以下电视台的一种理想的控制设备。     

一个在多用户微型机上实现的中文文字处理软件包

本文讨论了一个通用全屏幕编辑的中文文字处理软件包在ALTOS 586/986多用户高档微型计算机系统上的实观。着重阐述了文本缓冲区的设置以及存贮开销等问题。同时,还概述了该软件包的程序结构和基本功能。由于该软件包采用高级程库设计语言C编制而成,它具有良好的可移植性和较灵活的可扩充性。使用结果表明,本中文文字处理软件包具有可靠、灵活、方便等特点。适合我国办公室自动化(OA)系统中一般的中文文字处理工作。     

基于生态遗传算法的煤矸石自适应模糊模式识别

给出煤矸石组分模式识别的模糊神经网络模型，提出一种实用生态算子，同时将此基础上构建的生态遗传算法用于模糊神经网络的离线学习，能有效避免传统BP算法学习速度慢、易陷入局部极小的缺陷和基本遗传算法的遗传滑脱现象．仿真和实验结果显示新算法使离线训练的网络具有良好的收敛性能，而且从训练好的定量网络中提取模糊规则用于原煤的在线自动分选，不仅能提高煤中矸石的识别率，而且有效解决了系统识别精度与实时分选之间的矛盾．     

Can the occurrence of rare insertion／deletion polymor—phisms in human mtDNA be verfied from phylogeny？

Due to its specific characteristics,such as ma-ternal inheritance and absence of recombination,each mtDNA belongs to certain monophyletic clade in the rooted mtDNA tree(haplogroup) according to the mutations it har-bors,Rare mutation(excluding parallel mutation) occurring at multiple times in different haplogroups could thus be a potential reading error according to the mtDNA phylogent.This experience has been widely used im double-checking the credibility of the rare mutations in human mtDNA sequences.However,no test has been performed so far for the feasibility of applying this strategy to the rare insertion/deletion(indel) events in mtDNA sequences.In this study,we attempted to relate the rare indels in mtDNAs to their haplogroup status in a total of 2352 individuals from 50 populations in China.Our results show that the insertion of A at position 16259 is restricted to a subclade of haplogroup Cand can be verified.The other indel polymorphisms,Which occur in the repeat of the deleted or inserted nucleotide(s),may not be distin-guished from phantom mutations from a phylogenetic point of view.Independently and multiply sequencing the frag-ment with the indel is the best and the most reliable way for confirmation.     

ABC model and floral evolution

The paper introduces the classical ABC model of floral development and thereafter ABCD, ABCDE and quartet models, and presents achievements in the studies on floral evolution such as the improved understanding on the relationship of reproductive organs between gnetophytes and angiosperms, new results in perianth evolution and identified homology of floral organs between dicots and monocots. The evo-devo studies on plant taxa at different evolutionary levels are useful to better understanding the homology of floral organs, and to clarifying the mysteries of the origin and subsequent diversification of flowers.