黑斑蛙早期胚胎发育过程中蛋白酶活性

本文采用活性电泳方法,对黑斑蛙（Ｒａｎａ ｎｉｇｒｏｍ ａｃｕｌａｔａ）早期胚胎发育过程中蛋白酶活性进行了研究．结果如下：尾芽期以前未检测到蛋白酶活性;中性条件下,心跳期检出分子量分别为８０、７２、６６ｋＤ的三种蛋白酶;随着胚胎的发育,蛋白酶的种类逐渐增多、活性逐渐增强;三种ｐＨ 条件下各时期所检出的酶的种类及活性并不相同,但以中性条件下酶的种类多、活性强．     

猕猴大肠5-羟色胺免疫活性细胞的免疫组织化学研究

以免疫组织化学ＳＰ法显示猕猴大肠含５－ ＨＴ的细胞,并用Ｗｅｉｂｅｌ体视学方法对其进行了定量分析．结果表明,猕猴大肠５－ ＨＴ免疫活性内分泌细胞的密度在结肠离心段最高,直肠密度中等,盲肠和结肠向心段最低．５－ ＨＴ免疫反应阳性细胞多分布在肠腺处,其形态多样,大多为锥形、梭形、圆形等．有些细胞的基底部有突起,突起的末端含有５－ ＨＴ阳性物质;有些细胞的５－ ＨＴ阳性物质释放到腺腔或肠腔面．     

换热器网络综合的同步优化超结构模型的研究

提出了一种新的基于专家系统的无分流换热器网络超结构模型,建立了换热器网络同步优化的数学模型,通过求解该型自自动地获得热网络的最优结构,通过示例说明了本文提出的超结构模型的有效性。     

远程教学系统的设计与实现

本文介绍了应用Ｊａｖａ和ＨＴＭＬ进行Ｃ＋＋语言远程教学系统的开发实践。对开发过程中的若干关键问题进行探讨,并提出了相应的解决方案。最后提出了一种基于因特网／企业内联网具有计算机支持协同工作功能的远程教学系统的解决方案。     

金上硫醇自组装膜研究进展

对硫醇类化合物在金上形成的自组装膜的自组装动力学、结构、性质及其上的跨膜电子传递机理进行了综述。     

Determination of specific surfaces of silica xerogets by SAXS

Small angle X-ray scattering (SAXS) with synchrotron radiation as X-ray source has been used to study the structure of silica xerogets prepared by sol-get process. Both the agreement of SAXS profiles with and the deviation from Porod’s law and Debye’s theory have been found, showing that there are differences between the structures of these xerogets. The specific surfaces of the samples whose SAXS profiles agreed with Porod’s law and Debye’s theory have been determined by analyzing SAXS data according to the methods of Porod and Debye, respectivety, and the results of both methods used were found to be similar. We have proposed the corresponding Porod and Debye analysis methods to determine the specific surfaces of samples whose SAXS profiles do not agree with Porod’s law and Debye’s theory, i.e. the negative or positive deviation. The results of both methods used here were also found to be close to each other. The specific surfaces fell between approximatety 80–150 m²/cm³ for the samples prepared under various conditions.     

Gene control of flowering time in higher plants

Flowering involves a transition process from vegetative growth to reproductive development, in which a series of routine changes take place in the shoot apical meristems from metabolic pathway to external phenotype. Expression of the genes related to flowering is the foundation for achieving the transition. Environmental factors (such as vernalization and photoperiod) and the growth status of cell itself induce the expression of the specific genes. A lot of achievements have been made recently in gene control for the determination of flowering time. The article reviews some new advances of such researches related to our work and the interesting field.     

基于OpenGL的微观分子运动三维实时动画仿真系统设计和实现方法

研究了微观分子运动的仿真问题,提出了一种利用分子运动三维坐标数据得到分子运动三维动画仿真系统的设计和实现方法。首先给出系统的分子动力学数学模型、基于OpenGL的坐标变换模型及光照模型等,然后给出系统的数据处理、图形仿真和人机交互三个主要模块的设计和实现方法。最后使用该方法实现了一个液态金属分子运动的实时仿真系统。     

可再生能源互联网中的微电子技术

可再生能源互联网对电子系统提出了五大要求:高效性、安全性、可靠性、便利性、宽泛性.为了实现上述要求,可再生能源互联网需要多学科、多方面、多层次的创新.微电子技术将会渗透到可再生能源互联网的各个层级,是可再生能源互联网的重要支撑性技术之一.文章重点围绕固态变压器、分布式储能技术、信息采集芯片技术、通信芯片技术四个方面,阐述了可再生能源互联网中的微电子技术所面临的特殊要求、技术挑战及未来可能的发展趋势.     

Research on fault-tolerant control of networked control systems based on information scheduling

A kind of networked control system is studied; the networked control system with noise disturbance is modeled based on information scheduling and control co-design. Augmented state matrix analysis method is introduced, and robust fault-tolerant control problem of networked control systems with noise disturbance under actuator failures is studied. The parametric expression of the controller under actuator failures is given. Furthermore, the result is analyzed by simulation tests, which not only satisfies the networked control systems stability, but also decreases the data information number in network channel and makes full use of the network resources.