DCS与MBMIS注记信息的转换     

秦志远 《测绘学院学报》1992,(3)

本文介绍了由“数字地籍测量系统(DCS)”注记信息形成“军队基建营房图形管理信息系统(MBMIS)”注记图元的过程以及西文字符的ASCII码与中文方式下相应字符的机内码转换算法。  相似文献   

用RAM扩充程序存贮器     

王立红 《中国海洋大学学报(自然科学版)》1995,(Z1)

给出一种用ＲＡＭ扩充程序存贮器的方法，以及具体的硬件线路。这种简便实用的方法可为用户提供一种根据需要自行修改或编写应用程序的环境．  相似文献   

内存当磁盘——LASER310上实现程序链接     

李华祥 《广东海洋大学学报》1989,(Z1)

本文设计了一个程序,将待传递的数据POKE入受保护的内存单元,使LA5ER 310电子计算机仅借助于录音机就可以实现程序链接,从而使不具备磁盘机的LASER 310运行大程序成为现实。  相似文献   

形状记忆合金金属橡胶自回复减震(振)器的性能试验研究     

李素超  李惠  毛晨曦  赵亚哥白 《震灾防御技术》2010,5(1):81-88

形状记忆合金金属橡胶(Shape Memory Alloy Metal Rubber,SMAMR)是在金属橡胶基础上改进的一种新型减振材料,在减震(振)器发生塑性变形之后,形状记忆合金金属橡胶可以通过加热诱发金属橡胶中的形状记忆合金丝发生相变,从而达到变形自回复的目的。本文通过对8个金属橡胶试件的静力和动力压缩试验研究发现,形状记忆合金金属橡胶力学性能稳定,并且形状记忆合金金属橡胶减震(振)器的塑性变形可以通过升温进行自回复,而不需要更换新的减震设备。  相似文献   

具有记忆固化压力属性的模型边坡变形实验研究     

张强  徐嘉谟 《工程地质学报》1998,6(4):362-367

在开挖引起的位移场的模拟实验中, 是否考虑自重体积力对模型材料固化时的作用及其力学性质的影响, 所得到的模拟结果会有很大的本质的不同。本文通过两种对比实验证明了这一点。  相似文献   

地图矢量数据计算机内存管理方法   总被引：3，自引：0，他引：3  

魏代永  郝向阳  巩学美 《测绘学院学报》1999,(2)

文中提出了复式链表的概念, 讨论了用复式链表对地图矢量数据进行内存管理的原理与方法, 有效地解决了地图属性数据与图形数据的内存管理及内存连接问题, 大大提高了地图矢量数据存取速度, 为各种地理信息系统和地图数据库的矢量数据管理提供了一条有效的途径。  相似文献   

煤岩变形破坏电磁辐射记忆效应的力电耦合规律   总被引：1，自引：0，他引：1       下载免费PDF全文

撒占友  何学秋  王恩元 《地球物理学报》2006,49(5):1517-1522

理论分析了煤岩变形破坏过程中电磁辐射脉冲数与损伤之间的关系，探讨了煤岩变形破坏电磁辐射产生机制及电磁辐射记忆效应的力电耦合规律，建立了等围压三轴应力状态下含瓦斯煤岩变形破坏电磁辐射记忆效应的力电耦合模型，实验测定并分析了单轴压缩状况下含瓦斯煤岩变形破坏电磁辐射记忆效应的力电耦合规律.结果表明，含瓦斯煤岩变形破坏电磁辐射记忆效应力电耦合模型很好地反映了煤岩变形破坏电磁辐射记忆效应特征规律和微观损伤机理.  相似文献   

地震史料的数字化处理——以《20世纪山东十大地震》画册编辑为例     

刁守中  梁凯利  马玉香  李红  游本跃  郑建常 《国际地震动态》2007,(1):25-30

原始性地震资料(史料)蕴涵着大量的地震科学信息.针对目前原始性地震资料(史料)存储的分散、纸介质老化破损、无法进行计算机网络发布和传播等问题,本项目在广泛收集20世纪山东及近海10次5级以上地震的原始性地震资料(史料)的基础上,采用数字摄影、计算机数字化扫描技术、计算机图像编译等技术,借以形成原始性地震资料(史料)的计算机数字化图像文件;同时将原始性地震资料(史料)的发掘、抢救与地震基本现象、基本知识的归类整合相结合,将原始性地震资料(史料)计算机数字化电子载体存储与地震科普相结合,编制出《20世纪山东十大地震》画册,解决了原始性地震资料(史料)由纸介质存储向数字化电子载体存储的技术进步问题,实现了计算机网络发布和传递.  相似文献   

Elimination of effects of earthquake in monitoring crustal movement     

C. T. Celik  W. Chen  R. M. Bingley 《Studia Geophysica et Geodaetica》2007,51(2):207-219

Monitoring crustal movements is important in understanding the earth surface and in developing theories about plate tectonics. Plate tectonics describes earth crust which consists of a number of plates moving relative to one another. Global plate models suggest that plate movements are constant due to the fact that relative movements of plates were represented by averaged plate motion. However, if an earthquake occurs, the uniform movement of related plates does not follow the regular trend. In analysis by Kalman Filter, the effects of an earthquake occured within crustal movement monitoring period by geodetic method have been eliminated by a proposed approach, Fading Memory Filter. The proposed method was tested using a real/simulated data. The results of the test showed that the effect of a strong earthquake (M_w = 7.1) which had occurred in the Gulf of Eilat/Aqaba was eliminated. Consequently, the proposed method is capable of removing or eliminating a suddan effect in monitoring crustal movements in the analysis by using the Kalman Filter.  相似文献   

Political memories of conflict,economic land concessions,and political landscapes in the Lao People’s Democratic Republic     

《Geoforum》2014

Political memories—which are crucial for establishing and maintaining ‘political capital’, based on individual and group positioning during past conflict and wars, but also in relation to presentday politics—are important when considering varied outcomes from negotiations and other interactions that occur in the Lao People’s Democratic Republic in relation to large-scale economic land concessions. This paper continues to expand on the idea of political memories of past conflicts and wars by considering the concept in relation to the theoretical framework proposed by Hall et al. (2011) in their book Powers of Exclusion, which stresses the importance of interactions between regulation, force, the market and legitimation for understanding different types of exclusionary processes, especially those linked to land access. I argue that political memories are particularly relevant when it comes to legitimation, but that expanding the concept so as to include political memories is important. In relation to large-scale plantation, mining and hydropower dam concessions, I also stress the importance of political memories in (re)shaping understandings of landscapes, thus creating particular varieties of memory laden political landscapes, which too are constituted by the past but are also politically mobilized in the present.  相似文献