通用阵列逻辑GAL的破译软件

本文介绍与GAL器件破译仪主机运行有关的软件,包括异步通信程序模块、数据的二次处理和逻辑化简程序模块,以及菜单和附加功能程序模块。本文采取了一些措施,使破译时间得到减少。     

应山灵芝研究初报

对湖北应山灵芝的生态,生物学特性及其驯化栽培进行了研究。     

考虑横向变形的薄壁箱梁计算

在符拉索夫的虚功法的理论基础上,对符氏虚功方程进行扩充,讨论多箱带悬壁的薄壁箱梁在截面横向可变形及悬臂转动情况下,截面纵向、横向位移和应力计算方法。通过算例,分析虚功方程的计算结果。     

贵州生态旅游资源评价与开发利用建议

本文在分析贵州生态旅游资源特点并对生态旅游资源进行分类的基础上,阐述了发展贵州生态旅游的优势和不利条件,对生态旅游资源进行了初步评价,最后对开发贵州的生态旅游资源提出了措施建议。这些措施主要包括：１加强宣传教育,增强广大群众的自然保护意识;２开展生态旅游规划研究;３开展对自然保护区和国家公园管理人员和导游人员的知识培训等。     

满江红鱼腥藻glnA基因上游调控区的克隆及其序列分析

以满江红鱼腥藻（Ａａｃ）提取总ＤＮＡ为模板,通过ＰＣＲ技术,扩增得到其谷氨酰胺合成酶基因（ｇｌｎＡ）上游区．经酶切得到４０９ｂｐ的片段,并将其连接到ｐＢｌｕｅｓｃｒｉｐｔⅡｋｓ＋上测序．将测序结果与Ａｎａｂａｅｎａ７１２０调控序列比较,有９８２％的同源性．在上游调控中也具有ｎｉｆｌｉｋｅ和Ｅ．ｃｏｌｉｌｉｋｅ启动子,值得注意的是,调节蛋白ＶＦ１的结合位点正好位于ｎｉｆｌｉｋｅ启动子上．所克隆的片段不但对蓝藻固氮、泌氨的基因调控研究具有意义,也对表达载体的构建具有实用价值．     

烯烃的分子距离边数矢量(μ)及沸点的估计与预测

基于双键相对于单键键长的大小,提出了烯烃的分子距离边数（ＭＤＥ）矢量（μ矢量）;进而通过多元线性回归方法建立μ矢量与烯烃沸点之间的关系模型并进行预测,计算沸点与实验值之间的均方根误差仅为３．７８Ｋ,相关系数为０．９９９３。     

Genomic organization of EDSV strain AA-2

The genomic organization of egg drop syndrome virus strain AA-2 isolated in China is reported here. The genome was found to be 32 838 bp in length, approximately 2 kb shorter than those of the human subgenus C adenoviruses. Analysis of open reading frames indicated that the genes for major viral structural proteins (55 K, Penton base, pⅦ, pⅩ, pⅥ, Hexon, 100 K, pⅧ and Fiber), as well as EP, DNA polymerase and ⅣaⅡ are present in the expected locations in the genome. EDSV possesses no identifiable E3 and E4 regions and most proteins encoded by E3 and E4 regions of other adenoviruses genome were not presented in EDSV.     

Chronology of environmental events over East Asia during the past 130 ka

In the transitional region between the Loess Plateau and deserts, 4 sections located respectively at Yuling, Hengshan, Dingbian and Huining of China are studied. The high-resolution paleoclimatic records obtained show that environmental events on varying time scales have happened over East Asia. These events are dated with the time scales established using the recently-developed approach of Automatic Orbital Tuning. This leads to the establishment of the chronology of the environmental events.     

Preliminary study on climatic signals of stable isotopes from Holocene speleothems under monsoon condition

Within the East Asian monsoon zone the change in oxygen isotope of Holocene stalagmite is mainly related to monsoon rain rather than to temperature. And carbon isotope can be taken as a comprehensive signal which contains the natural information and the information of anthropogenic activity. Isotopic analysis is also compared with the annual layer records.