平面型无参比电极二氧化硫传感器

制备了一种新型无参比电极由ＮＡＳＩＣＯＮ和ＹＳＺ两种固体电解质及Ｎａ２ＳＯ４辅助电极构成的二氧化硫传感器。实验结果表明,该传感器对二氧化硫产生Ｎｅｒｎｓｔ响应。由于这种传感器采用了平面结构,对比电极和工作电极处于同样气氛中,消除了氧的影响和密封问题,同时有利于传感器的微型化和多元复合。     

关于时滞Liénard型方程的周期解

本文研究具有时滞的Lienard型方程周期解的存在性,得到了一些新的结果。     

关于二维Navier—Stokes方程的不稳定性

应用分层理论证明了二维Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程的ｃ＾２不稳定性,并给出了重要例证分析。     

Spontaneous transformation of C60Br24 to C60 in solvents

It was found that C₆₀Br₂₄ transforms to C₆₀ spontaneously in some solvents. The intermediate, C₆₀Br₈, can be separated in some cases. When the bromine trap, phenol, was added,p-bromophenol and other brominated product were obtained and identified. The influences of time, the kind of solvent, etc were investigated. Possible mechanism was suggested. Supported by the National Natural Science Foundation of China Liu Ying: born in 1969, Ph. D     

Search for new antiphytovirucides

The lead compound of substituted 2-(4′-hydroxyphenyl)benzimidazoles were modified by phosphorylation sulfonation and carboxymethylation. The benzimidazoloamidophosphate (6) (7) have better activity against tobacco mosaic virus (TMV). The benzimidazolophenoxyacetic acid, phenoxysulfonic acid containing trifluoromethyl, and nitro group have 77%≈85% efficiency for wheat rust disease. Supported by the National Natural Science Foundation of China and National Laboratory of Elemento Organic Chemistry Nankai University Qu Fanqi: born in 1952, Associate professor     

镦粗工艺理论与技术的进展

提出了普通平板间镦粗圆柱体高径比Ｈ／Ｄ〉１时刚塑性力学模型的拉应力理论和高径比Ｈ／Ｄ〈１的静水应力力学模型的剪应力理论,前者打破了传统工程塑性力学中所阐述的镦粗体内部总处于三向压应力之说,后者圆满地解释了大型饼类锻件中常出现的“夹馅饼”缺陷问题,平板镦粗所理论已被定性物理模拟和定量数值模拟,广义滑移线解,力学分块法和生产解剖试验所证实,在该新理论基础上,进一步提出方柱镦粗的两个新力学模型,锥形板镦     

星像函数与凸像函数的一个推广

利用一类积分算子,构造了函数族Ｓ（ｎ,α,λ）与Ｋ（ｎαλ）。建立了包含关系。并给出了函数族的一些不等式。     

提高注射法导入外源基因棉铃成铃率的技术研究

对采用注射法导入外源基因的棉铃,在激素种类、不同生态条件、结铃部位、结铃性、整枝方式等方面进行分析,探讨了导入棉铃落铃机理和提高导入棉铃成铃率的技术途径。     

棉花黄萎病毒素在早期抗病性检测中的应用研究

用棉花黄萎病（Ｖ．ｄａｈｌｉａｅ）毒素,处理不同抗性品种二叶期幼苗,结果表明,黄萎病毒素对棉花幼苗有明显致萎作用,其萎蔫指数与田间病情指数呈显著正相关,同时发现黄萎病毒素对种子发芽也有明显的抑制作用