I_3─半群是幂零的若干充要条件

本文通过半群的代数理论给出了Ｉ＿３—半群是幂零的若干等价条件，并且导出几类是幂零的Ｉ＿３－半群     

产芽孢细菌B130（BACILLUS SPP）培养条件的初步研究

本文就产芽孢细菌B130(Bacillus spp.)培养条件进行了初步研究,筛选出产菌量较高且来源方便,价格低廉的培养基成分(％w/v):豆饼粉3,麸皮4,玉米粉3,最适pH:6.5或8.0,确定了最佳培养时间区间为平衡期末期。     

The detection of structural deformation errors in attitude determination

In the determination of the attitude parameters from a multi-antenna GPS array, one of the major assumptions is that the body frame is rigid at all times. If this assumption is not true then the derived attitude parameters will be in error. It is well known that in airborne platforms the wings often experience some displacement during flight, especially during periods of initializing maneouvres, such as taking off, landing,and banking. Often it is at these points in time that it is most critical to have the most precise attitude parameters.There are a number of techniques available for the detection of modeling errors.The CUSUM algorithm has successfully been implemented in the past to detect small persistent changes. In this paper the authors investigate different methods of generating the residuals, to be tested by the CUSUM algorithm, in an effort to determine which technique is best suited for the detection of structural deformation of an airborne platform. The methods investigated include monitoring the mean of the residuals generated from the difference between the known body frame coordinates, and those calculated from the derived attitude parameters. The generated residuals are then passed to a CUSUM algorithm to detect any small persistent changes. An alternative method involves transforming the generated residuals into the frequency domain through the use of the Fast Fourier Transform. The CUSUM algorithm is then used to detect any frequency changes. The final technique investigated involves transforming the generated residuals using the Haar wavelet. The wavelet coefficients are then monitored by the CUSUM algorithm in order to detect any significant change to the rigidity of the body frame.Detecting structural deformation, and quantifying the degree of deformation, during flight will ensure that these effects can be removed from the system, thus ensuring the most precise and reliable attitude parameter solutions. This paper, through a series ofsimulations, will assess the effectiveness of the above mentioned techniques for detecting structural deformation effects on a GPS multi-antenna array. These principles are then tested with experimental data.     

钢结构发展现状与对策

首先简要地介绍了国内外钢结构的发展现状，尤其是我省发展钢结构的前景和存在的主要问题，同时在分析论证的基础上，提出了在我国加入WTO后推广钢结构的对策和措施。     

显微组织对NdFeB磁体β（iHc）的影响

研究了显微组织对ＮｄＦｅＢ磁体ｉＨｃ及β（ｉＨｃ）的影响，对ＮｄｘＦｅ９３－ｘＢ７磁体，ｘ从１６增加到２８时，Ｈｃ增加了５５％，β（ｉＨｃ）降低了约１１％；进一步优化显微组织，增加富Ｎｄ晶间相，减弱晶粒间的磁耦合作用及消除晶粒表面的高退磁场区域，不仅可提高磁体的矫顽力，亦可显著改善其矫顽力温度系数。     

一种基于距离和灰度的特征提取及其十字链表法的编程实现

本文从数字图像的灰度及其边缘的距离特征 ,对数字图像的特征提取进行了分析和探讨 ,并绘出了基于十字链表这种数据结构的编程实现方案     

烷基苯摩尔体积和摩尔折射度的拓扑化学研究

用拓扑方法探讨了烷基苯摩尔体积和摩尔折射度与分子结构的关系，提出一个既能合理在征烷基苯结构性能关系、又能准确预测其摩尔体积和摩尔折射度的定量关系式。     

A Study on the Design for Object-Oriented Adaptive Decision-Making Teams

1 .ＩＮＴＲＯＤＵＣＴＩＯＮＩｎＣ3Ｉｓｙｓｔｅｍｓ,ｒｅｃｅｉｖｉｎｇ ,ｔｒａｎｓｍｉｓｓｉｏｎ ,ｐｒｏｃｅｓｓｉｎｇａｎｄｄｉｓｐｌａｙｏｆｉｎｆｏｒｍａｔｉｏｎａｒｅｄｅｖｅｌｏｐｅｄｃｏｎｃｅｒｎｉｎｇｔｈｅｄｅ ｃｉｓｉｏｎｍａｋｉｎｇｏｆｃｏｍｍａｎｄｅｒｓ.Ｔｈｅｒｅｆｏｒｅ,ｔｈｅｍａｊｏｒｔａｓｋｏｆａＣ3Ｉｓｙｓｔｅｍｉｓｆｏｃｕｓｅｄｏｎｄｅｃｉｓｉｏｎｍａｋｉｎｇ.Ｗｉｔｈｔｈｅｒａｐｉｄｄｅｖｅｌｏｐｍｅｎｔｏｆｃｏｍｍｕｎｉｃａｔｉｏｎａｎｄｎｅｔｗｏｒｋ ,ｔｅａｍｄｅｃｉｓ…     

秦巴山区西洋参栽培的基本经验

根据秦巴山区的生态特点，对影响西洋参栽培中的质量和产量等几个基本问题进行了总结。     

基于模糊δ规则的模糊关系方程求解算法的改进

首先给出反例说明Li Xiaozhong等人提出的基于模糊δ规则的神经网络学习算法中的基础引理是有缺陷的,然后直接对算法进行了改进,并证明了改进后算法的有效性.最后用数字例子对改进后的算法进行了验证,结果表明十分有效.