采用光纤网络的工业多媒体通信研究

讨论了在光纤网络环境下进行多媒体应用的若干问题。根据实际要求,着重讨论了在工业局域网上运行的,对工业现场进行动态实时监控的新型多媒体监控系统,这套系统包括以图像采集卡为核心的视频处理部分,实现网络传输的通信部分以及系统总控软件。     

Visual C++动态链接库与Authorware链接的实现

讲述了用Ｖｉｓｕａｌ Ｃ＋＋创建ＤＬＬ的方法以及Ｖｉｓｕａｌ Ｃ＋＋动态链接库与Ａｕｔｈｏｒｗａｒｅ链接的技术。     

Razumikhin-type theorems on exponential stability of neutral stochastic functional differential equations

The Razumikhin-type theorems on the pth moment exponential stability and the almost sure exponential stability for the neutral stochastic functional differential equations have been established. By applying these new results to neutral stochastic differential-difference equations with time variant delays, several known results have been improved or generalized.     

Stability of diatomaceous silica and its geochemical implication

An experiment of stability of diatomaceous silica was performed. The results show that pH value and temperature dominantly influence the stability. The pH value concerning largely dissolving diatomaceous silica is 2-3 higher than that amorphous silica due to the buffer action of coexistent clay minerals. The solubility of diatomaceous silica rises distinctly when temperature is over 40℃, which suggests the cause of distribution of large-scale diatomite deposits in the middle to high latitude areas over the world. There is no close relationship between the solubility of diatomaceous silica and time, which shows that the content of diatomaceous silica in diatomite deposits are determined by the latest environment condition since they formed and bore no relation to the time they experienced.     

Glutamate and γ-aminobutyric acid receptors and their characteristics in retina

Glutamate and Ⅱ-aminobutyric acid (GABA) are important neurotransmitters in the retinal neuronal circuitry. Using the whole-cell patch clamp technique and a rapid solution changer, glutamate and GABA receptors in the retina have been extensively investigated. Results indicate that glutamate receptors on horizontal cells may be an AMPA preferring subtype, which predominantly consists of flop splice variants. GABAA and GABAC receptors coexist in bipolar cells, with the latter showing significant desensitization. Kinetics analysis has demonstrated that the activation, deactivation and desensitization of the GABAC receptor-mediated response of these cells are overall slower than those of the GABAA response. Endogenous modulator Zn2 + in the retina has been found to differentially modulate the kinetic characteristics of the GABAC and GABAA responses.     

适应多民族地区教育改革和经济建设需要的中学化学教师培养方案设计

该文根据广西多民族地区教育和经济建设的特点,以德智体全面发展学说和现代结构主义课程论为理论基础,提出了一份面向２１世纪多民族地区化学（教育）专业的培养方案的设计方案。     

槟榔花粉的生物学,氨基酸和化学元素含量研究

研究结果表明,槟榔花粉呈球形或扁球形,极轴长２６ μｍ（２４ ．２ ～２７ ．８ μｍ ） ,赤道轴长２７ ．２ μｍ（２５ ．３ ～２９ ．１ μｍ） ,有两层壁,外壁含有多种生理活性物质;有１７ 种氨基酸,总含量按干重计,三亚崖城（４０．３２ ｍｇ／ｇ） ＞ 琼中湾岭（３９ ．７２ ｍｇ／ｇ）,其中Ａｓｐ、Ｇｌｕ 、Ｌｙｓ 含量较高,分别为５ ．８７ ｍｇ／ｇ、４ ．３８ ｍｇ／ｇ、３ ．８７ ｍｇ／ｇ．９ 种必需氨基酸和６ 种增香氨基酸的组分总量,均以三亚崖城＞ 琼中湾岭,药效氨基酸则以琼中湾岭＞ 三亚崖城;化学元素含量以宏量元素Ｋ＞ Ｍｇ＞ Ｃａ＞ Ｐ＞ Ｎａ,微量元素Ｓｉ＞ Ｍｎ＞ Ｆｅ＞ Ｚｎ＞ Ｐｂ ＞ Ｃｕ 、Ｎｉ．     

对长江中下游第四纪冰川发育的新认识

早在２０世纪３０～４０年代,李四光就已开始对我国长江中下游第四纪冰川发育问题进行研究。本文通过对长江中下游在冰期时的古气候、山体高度及雪线高度的研究,认为气候变冷和高山存在是长江中下游第四纪冰川发育最关键的条件。尤其是后者对发育冰川起着积极和直接的作用。     

复杂传热数学模型的有限元网格自动划分方法

提出了一种网格自动划分的方法映射数值求解方法,并结合冶金中的传热问题,阐述其具体实施过程·以ＴｕｒｂｏＣ为开发工具,编制了复杂求解域的有限元网格自动划分程序,该程序在ＴｕｒｂｏＣ２０集成开发环境上,调试运行通过·通过验证,本方法不但对凸域行之有效,而且较成功地解决了凹域问题·     

非保守Duffing方程周期解的存在唯一定理

讨论非保守的 Ｄｕｆｆｉｎｇ 方程 ｘ″（ ｔ） ＋ ｃｘ′（ ｔ） ＋ ｇ（ ｔ ,ｘ） ＝ ｅ（ ｔ） 的２π周期解,利用 Ｐｏｉｎｃａｒｅ 扰动方法,在渐近非一致条件γ（ｔ） ≤ｇｘ（ ｔ,ｘ） ≤Γ（ ｔ） ,γ,Γ∈ Ｌ１（０ ,２ π） ,γ,Γ满足可跨０ 特征值,得到所讨论方程２π周期解存在唯一的一个定理