砂岩储层全岩矿物模拟岩心的制作方法研究与评价

主要介绍了砂岩储层全岩矿物模拟岩心的制作原理、制作方法,并对所制作的模拟岩心和天然岩心进行孔隙特性和实验性能对比评价。研究出一种新型环保硅酸盐类复合胶结剂,找出了影响模拟岩心强度和渗透率的主、次因素。确定了模拟岩心的制作方法,制作出具有完好外观且具有天然岩心的成分特性、孔隙特性、渗透特性、敏感特性和实验规律的模拟岩心,可代替天然岩心进行采油工程措施的室内模拟实验,既填补了无天然岩心就无法进行室内实验的空白．又解决了因天然岩心的非均质性导致实验数据重复性差或无可比性的难题。     

我国海岸工程技术展望

从海岸动力监测体系、河口海岸侵蚀及防护、海岸工程深水和离岸趋势、极端条件下海岸工程结构安全、岛礁工程开发技术、海岸管理与数字海岸、亲水工程、海洋能技术利用开发和海岸工程研究等九个方面对我国海岸工程中面临的问题,以及国外相关工程技术进展情况进行了分析,并指出我国未来海岸工程领域需要加以关注的重点问题和发展趋势。     

倒置式回声仪的研究进展

倒置式回声仪(IES)是一种锚系于海底的海洋观测仪器,它通过向上发射声信号并接收从海面反射的回声信号,测量并记录声信号的垂向往返传播时间。倒置式回声仪具有体积小、设置方便、性价比高、安全性强等特点。IES已经成功应用于全球多个海区,并取得了举世瞩目的成果。文中回顾了IES的发展历史,系统介绍了有关IES的研究成果与进展及在我国的初步应用。     

Advance in application of regional climate models in China

Regional climate models have become the powerful tools for simulating regional climate and its change process and have been widely used in China. Using regional climate models, some research results have been obtained on the following aspects： 1） the numerical simulation of East Asian monsoon climate, including exceptional monsoon precipitation, summer precipitation distribution, East Asian circulation, multi-year climate average condition, summer rain belt and so on; 2） the simulation of arid climate of the western China, including thermal effect of the Qinghal-Tibet Plateau, the plateau precipitation in the Qilian Mountains; and the impacts of greenhouse effects （CO2 doubling） upon climate in the western China; and 3） the simulation of the climate effect of underlying surface changes, including the effect of soil on climate formation, the influence of terrain on precipitation, the effect of regional soil degradation on regional climate, the effect of various underlying surfaces on regional climate, the effect of land-sea contrast on the climate formulation, the influence of snow cover over the plateau regions on the regional climate, the effect of vegetation changes on the regional climate, etc. In the process of application of regional climate models, the preferences of the models are improved so that better simulation results are gotten. At last, some suggestions are made about the application of regional climate models in regional climate research in the future.     

雄武背斜湾子地区物化探异常特征与找矿前景

本文通过对雄武背斜南东翼地质矿产、化探、物探等工作成果的综合分析,结合区域内金矿的成矿规律,对该区域内金矿的成矿远景进行预测,以期在该区寻找深部盲矿床。     

南海现代海平面变化研究的进展

本文根据笔者近年对广东海平面变化的研究,并参考前人的研究结果,对南海现代海平面研究的进展进行了较系统的评述.认为数十年来南海相对海平面总体上呈上升趋势,上升速率一般小于2.5mm/a.1.8mm/a或1.9mm/a可以近似地作为绝对海平面上升速率.预测2030年或2025年相对海平面上升幅度为20～25cm.     

海洋地质灾害研究的几个基本问题

海洋地质灾害的发生，发展和分布有其自身的规律和特点，成因的复杂性，发生的周期性，多发和复发性，群发与同步性构成了共同的属性。依据致灾的动力条件大致可分为内动力地质条件，外动力地质条件和人为地质条件三种类型我国在灾种的调查研究，防灾和减灾对策上取得了显著的成效。     

URBAN TOURISM RESEARCH METHODOLOGY——A Case Study of Guangdong-Hong Kong-Macao Area

1IN T R O D U C T IO N Urban tourismisa broad concept includingallkindsof recreationaalctivitietshattakeplaceincitie.s With the development of post-industrializat,i oncomprehen sive strengthofcitieshas been enhanced, and theimprove- ment of urban environm…     

TECHNIQUES OF CONSTRUCTING REGIONAL INPUT-OUTPUT TABLES: ACHIEVEMENTS

The development of any analytical method should have to experience at least four stages: its initial status, growth, mature and declining. However, although the regional input-output analysis has been widely applied for more than forty years, it is still one of the most important approach in regional economic analysis and forecast at present in the world. This is due to the never ended modifications and its great potentials. In this paper, we review the historical development of the regional input-output analysis.