CIMS环境中的一个知识型数据库

本文分析了ＣＩＭＳ环境中软件及硬件管理方面的问题，设计了一个搜集各种知识的知识型数据库，并以注塑模具为研究对象，研究并搜集模具设计、制造过程中生成及应用的知识．     

一类特殊的n元序链的优化研究

论述了当各工序最早开工时间相同时由平行工序转为顺序工序的最优排序问题。通过对特殊的n元序链的优化理论的研究,给出了解决问题的一种方法。     

Turbo BASIC与汇编语言的接口方法和应用实例

结构化的Turbo BASIC提供了多种与汇编语言的接口方法，本文全面介绍了其中常用的几种方法，并着重指出其与解释BASIC中接口方法的不同之处，最后给出一个Turbo BASIC调用8088汇编语言程序的应用实例，说明该语言解决同类问题具有的简单方例和可靠等优点。     

Opening and evolution of the South China Sea constrained by studies on volcanic rocks: Preliminary results and a research design

The South China Sea (SCS) is characterized by abundant seamounts, which provide important information about the evolution of the SCS and related deep processes. Cenozoic volcanism in the SCS and its surroundings comprises three stages relative to the spreading of the SCS:prespreading (>32 Ma), syn-spreading (32-16 Ma), and post-spreading (<16 Ma). The pre-spreading magmatism predominantly occurs on the northern margin of the SCS and in South China coastal areas and shows a bi-modal affinity. The syn-spreading magmatic activity was very limited on the periphery of the SCS, but may be concentrated in the SCS. However, seafloor samples of this stage are not available yet because of overlying thick sedimentary deposits. Post-spreading magmatism is widespread in the central and southwest sub-basins of the SCS, Hainan Island, Leizhou Peninsula, Thailand, and Vietnam. These are mainly alkali basalts with subordinate tholeiites, and display OIB-type geochemical characteristics. The Dupal isotope anomaly and presence of high-magnesian olivine phenocrysts suggests their possible derivation from the Hainan mantle plume. The temporal and spatial distribution of Cenozoic volcanism in the SCS and its surroundings may be accounted for either by plate stress re-organization before and after SCS spreading, or by ridge suction of plume flow during opening of the SCS. If the latter is the case, the volcanic rocks within the SCS basin may not be typical mid-ocean ridge basalts (MORB). It remains puz-zling, however, that the transition between the South China continental margin and the SCS basin does not have features typical of a volcanic rifted margin. Clearly, the relationship between mantle plume and SCS opening needs further evaluation. A better un-derstanding of the link between deep processes and opening of the SCS not only requires enhanced studies on igneous petrogene-sis, but also is heavily dependent on systematic sampling of seafloor rocks.     

以实验室信息化促进实验室管理模式改革

随着高校招生规模逐年扩大,高校实验室承担的教学任务、开放实验任务越来越多,高校实验室管理工作也变得更加繁重和复杂,特别是开放实验室也给传统的实验室管理提出了新的挑战.使得各高校应建立一套高校实验室信息管理平台,改变传统的实验室管理模式,实现开放实验室的全天候开放,大型仪器设备得到充分共享,减轻实验室管理人员的工作负担,提高管理效率和服务水平.     

平行双裂纹应力强度因子的计算方法

为了快速、方便地估算多裂纹尖端的应力强度因子,以承受均匀拉伸载荷的含平行双裂纹的有限平板模型为研究对象,提出了一种基于裂纹最大张口位移量确定平行双裂纹尖端应力强度因子的新方法.该方法以单裂纹问题中最大张口位移与应力强度因子间的函数关系为基础,考虑了平行双裂纹的垂向、纵向裂纹间距比和裂纹长度比的影响,拟合出纵向间距比为0时不同裂纹长度比下与垂向间距比相关的修正系数表达式,并进一步分析了裂纹纵向间距比对双裂纹尖端应力强度因子的影响,最终建立了平行双裂纹应力强度因子的简便方法.     

文化与休闲——免费后的博物馆与旅游业的互动

如何抓住博物馆免费开放的契机,拓展旅游业的发展,实现文博事业和旅游经济的合作共赢,共同走上良性循环的可持续发展之路,是当前面临的重要课题。通过转变观念、引入休闲、树立品牌等途径,两者的互动势必使文博事业与旅游产业都获益匪浅。     

试论李贽开放的自然观

李贽崇尚自然、追求自然是与他思想的开放性分不开的,他为追求自由和解放,时刻都在对自己的灵魂进行剖析,对假道学及落后的传统习惯势力进行无情的揭露和批判。     

灌浆压力对裂隙岩体可灌性的影响分析

岩体的可灌性不仅取决于受灌裂隙的初始开度,还与在灌浆压力作用下裂隙的弹性扩张值有关.本文首先建立了灌浆压力沿流程的非线性分布方程,然后导出了估算裂隙弹性扩张值的理论公式.示例分析表明,灌浆压力的扩缝效应对细裂隙的可灌性有较明显的改善作用.