有限域上n元二次方程的解数

设p为奇素数,Fp是含p个元素的有限域,n是大于1的自然数．通过方程的秩r,对Fp上n元二次方程进行了分类,若r=1,Fp上n元二次方程除（p-1）／2个外,其余都有解;若r〉1,Fp上n元二次方程都有解,给出了各类方程的解数．     

光电式自动药品装瓶数粒机系统

介绍了一种新型全自动光电式药粒、片剂装瓶 数粒机的系统结构和工作原理,并着重分析了该种数粒机可编程控制器计数系统中气动快门响应速度、可编程控制器扫描速度等因素对计数准确率的影响,以及光电式计数控制系统的改进。     

一类二阶变系数线性常微分方程的通解

论述了二阶线性常微分方程y″＋A（x）y′＋B（x）y=D（x）在满足B^2＋A′B—AB^=m和B″-（AB）′=m的条件时可用初等积分法求其通解，并推出了求解公式．     

改进文山师专学生学习成绩的评定方法

针对文山师专以往学生学习成绩的评定比较重视期末考试成绩,从而导致一部分学生在教学过程中不够努力、期末考试作弊逐年增多的现状,提出了一个学习过程和期末考试并重的“三控制”方案,经过一学年的实验和改进,形成了一个较为可行的文山师专学生学习成绩评定办法。     

一类三阶变系数线性常微分方程的可积性

论述了一类三阶变系数线性常微分方程y A(x)y″ B(x)y′ D(x)y=E(x)当满足条件D2 DB′-BD′=0和BD DA′-AD′=0时,可用初等积分法求其通解,并推出了求解公式。     

续论■的极限

在《论■的极限》一文（发表于文山师专学报1990第一期，为了叙述方便，以下简称前文）中，分别对k,x,y取定值或者趋于无穷的各种情况，首先论述了F_k(x,     

连续函数列的极限函数不是Riemann可积的一个例子

叙述了构造连续函数列的极限函数未必可积例子的意义及构造思路，并构造了一个这样的例子。     

In situ ethylene copolymerization with an olefin-type monomer for one-pot synthesis of polyethylene tethered on multi-walled carbon nanotubes

A one-pot procedure for the synthesis of polyethylene tethered on multi-walled carbon nanotubes by in situ ethylene copolymerization with an olefin-type comonomer, α-alkene functionalized multi-walled carbon nanotubes (MW - CH = CH₂) is reported. The covalent linkage between polyethylene and multi-walled carbon nanotubes is demonstrated. The MWCNTs are chemically oxidized first by a strong oxidizing agent and then functionalized with chlorocarbonyl groups (MW-COCl) via reacting with thionyl chloride. The MW-CH=CH₂ are obtained by esterification of ω-undecylenyl alcohol with MW-COCl. The MW-CH=CH₂ may serve as olefin-type comonomers to further synthesize core-shell structured copolymers with a multi-walled carbon nanotubes core grafted with side chains of polyethylene via rac-(en)(THInd)₂ZrCl₂ copolymerization catalyst. The core-shell structured nanocomposites were characterized by means of ¹H-NMR, SEM, FTIR and TGA. The results confirmed the formation of polyethylene chains growing from the surface of multi-walled carbon nanotubes.