南海波高熵和风速熵

根据风速的统计分布，给出了有因次风速熵和无因次风速熵的定义及其计算方法，使用ＧＥＯＳＡＴ高度计１９８６年１１月－１９８９年２月的有效波高和风速的资料，计算，分析了南海海域上的波高熵，风速熵，给出它们的时间变化特征和空间变化特征，并对不同随机量的无因次熵，即随机度进行了比较。     

Tephra Discovered in High Resolution Peat Sediment and Its Indication to Climatic Event

Floating tephra was deposited together with ice core,snow layer,abyssal sediment,lake sediments,and other geological records.It is of great significance to interpret the impact on the climate change of volcanic eruptions from these geological records.It is the first time that volcanic glass was discovered from the peat of Jinchuan(金川)Maar,Jilin(吉林)Province,China.And it is in situ sediments from a near-source explosive eruption according to particle size analysis and identification results.The tephra were neither from Tianchi(天池)volcano eruptions,Changbai(长白)Mountain,nor from Jinlongdingzi(金龙顶子)volcano about 1 600 aBP eruption,but maybe from an unknown eruption of Longgang(龙岗)volcano group according to their geochemistry and distribution.Geochemical characters of the tephra are similar to those of Jingiongdingzi,which are poor in s.Jica,deficient in alkali,Na20 content is more than K20 content,and are similar to distribution patterns of REE and incompatible elements,which helps to speculate that they originated from the same mantle magma with rare condemnation,and from basaltic explosive eruption of Longgang volcano group.The tephra,from peat with age proved that the eruption possibly happened in 15 BC-26 AD,is one of Longgang volcano group eruption that was not recorded and is earlier than that of Jinglongdingzi about 1 600 aBP eruption.And the sedimentary time of tephra is during the period of low temperature alteration.which may be the influence of eruption toward the local climate according to the correlativity of eruption to local temperature curve of peat cellulose oxygen isotope.     

基于AutoCAD的管线调查系统的建设

现有管线调查常用的记录方式有直接用笔记录于调查表格中和使用PDA作为管线外业调查的手簿两种方式,这两种方式都需要大量的内业数据处理。为提高管线调查的效率,进行了基于AutoCAD的管线调查系统的建设。本文介绍了该系统的开发方式,系统功能,作业流程等。着重介绍了管线调查信息的存储、管线信息调查、自动生成调查井位、自动生成高程表和调查表等功能以及操作命令的制作等关键技术。该系统已进行了试点应用,实践证明大大提高了作业效率,取得了良好的效果。     

宿松茅口阶沉积成岩研究

宿松地区茅口阶为一连续的海退沉积序列，先后发育浅海陆棚相、开阔台地相、颗粒滩相。所经历的成岩作用主要有胶结、重结晶、白云石化、压溶、溶蚀及充填等．本文还对成岩环境进行了讨论。     

单片机汉字处理系统

本介绍ＩＢＭ－ＰＣ机汉字点阵的获取及其与ＭＳＣ－５１单片机构成的实时通信功能的实现方法，采用ＩＢＭ－ＰＣ机作为上位机，并通过ＭＳＣ－５１单片机的控制实现１６×１６点阵汉字的显示。     

碎石桩加固冷却塔地基效果的检测技术与质量评价

介绍了安阳电厂冷却塔碎石桩复合地基静载、动力触探、瑞利波法系列原位试验。根据试验结果，对冷却塔地基加固与改良效果及施工质量进行了评价。     

黑龙江省东部跃进山群中绿片岩的地球化学特征及地质意义

跃进山群出露位于佳木斯地块和那丹哈达地体之间，是完达山造山带的组成部分。它由大陆斜坡相沉积物、大洋中脊型玄武岩和洋岛型玄武岩组成，其中有镁铁－超镁铁质岩块体。它不是一个地层单位，而是与活动大陆边缘板块俯冲作用有关的蛇绿混杂岩     

铝对铬成矿地球化学的依存性和对抗性

基于岩浆铬矿床与超镁铁质岩石的关系，从元素亲合性和共生规律的角度揭示了铝对铬成矿制约的主导作用，分析了铝和铬亲石、亲氧的二重性及其晶体化学的依存关系。论证了超镁铁Ｓｉ－Ｏ体系中铝丰度过高或过低均不利于铬的成矿。揭示了制约元素分散富集的因素都是在一定条件下互为依存和转化的，是在动态中的矛盾的对立和统一。     

计算机内存的分类及优化管理

本文从计算机应用角度出发，介绍了计算机内存的基本结构及其类型内存配置对计算机工作的影响，同时讨论了如何合理计算机内存，以便充分发挥计算机的优势。