五参数录井综合解释模型

该文提出的五参数综合解释模型,是井口地质录井综合解释油气水层的一种定量解释方法。它以气测、K.S法、判别模型和电测解释结果为基础,用逐步判别法建立的。它用最大概率解决归类问题,使油气水层解释符合率和正判率都得以提高,为井口地质综合解释自动化作了一次成功尝试。     

数字区调新技术新方法—RS_OrthoMapper系统研制开发

为了适应当今数字区调工作的需要,开发一套3S技术有机结合简单实用的数字区调野外工作平台或软件系统,已成为燃眉之急。论文介绍了数字区调新技术新方法--RS_OrthoMapper系统研制与开发的基本需求、系统的总体结构与设计、系统实现等,并给出了系统中一些重要的逻辑视图。该系统在西藏昌务场和青海阿拉克湖等地区数字区调填图中示范应用,获得良好效果。     

Developing artificial neural networks for safety critical systems

There are many performance based techniques that aim to improve the safety of neural networks for safety critical applications. However, many of these approaches provide inadequate forms of safety assurance required for certification. As a result, neural networks are typically restricted to advisory roles in safety-related applications. Neural networks have the ability to operate in unpredictable and changing environments. It is therefore desirable to certify them for highly-dependable roles in safety critical systems. This paper outlines the safety criteria which are safety requirements for the behaviour of neural networks. If enforced, the criteria can contribute to justifying the safety of ANN functional properties. Characteristics of potential neural network models are also outlined and are based upon representing knowledge in interpretable and understandable forms. The paper also presents a safety lifecycle for artificial neural networks. This lifecycle focuses on managing behaviour represented by neural networks and contributes to providing acceptable forms of safety assurance.     

Displacements of Multiblock Geotechnical Structures Subjected to Seismic Excitation

A method is presented for calculations of irreversible displacements of multiblock structures subjected to seismic excitation. Use is made of the kinematic approach of limit analysis. To make the analysis tractable a hodograph representing distribution of accelerations in the structure is introduced. Distinction is made between soils conforming to the associative and nonassociative flow rules, and the importance of this distinction is demonstrated. The yield acceleration calculated for slopes comprised of soils conforming to the nonassociative flow rule is lower than that for a soil with the same strength parameters, but its deformation governed by the associative flow rule. Consequently, the displacements predicted for the former are larger. An example of a slope is demonstrated, but the method presented is applicable to other structures, such as retaining walls and embankments.     

矿区地质环境定量评价的FAHP与可变模糊集模型

针对矿山地质环境影响因素具有多样性、不确定性特征,难以进行定量评价的问题,将模糊层次法(Fuzzy analytic hierarchy process,FAHP)与可变模糊集相结合,以宁夏某地区为例,构建了一种适用于矿区地质环境的定量评价模型。首先构建了涵盖矿区地质背景、地质灾害、资源毁坏、环境污染等4个一级指标,工程地质条件、地形地貌、水文气象、人类活动强度等16个二级指标的矿区地质环境评价指标体系;然后采用可变模糊集求解方法计算了各评价指标的权重向量,并结合FAHP法求解出矿区地质环境等级特征值,依据各特征值对矿区地质环境所属等级进行了准确划分。研究表明:该矿区地质环境等级特征值为2.489,综合地质环境等级为II级,区内地质环境总体良好;该区矿区地质背景、地质灾害、环境污染等级均为II级,资源毁坏等级为III级,表明该区资源毁坏程度处于预警状态,有必要进一步加大矿产资源、土地资源以及水资源的保护力度,实现可持续发展。     

油气圈闭地质评价方法及应用

本从含油气系统理论出发，对圈闭成藏的油源，储层，圈闭，保存，配套史制定分级评价标准，并赋予相应的评价系数，在此基础上应用地质风险概率理论与模糊数学的方法，在微机上定量评价圈闭含油气性。     

山东英格庄金矿床构造特征研究及找矿方向

通过英格庄金矿床构造特征及控矿规律的综合研究,表明金矿化分布于石沟—巫山断裂带中,严格受断裂带控制,金矿体赋存于近SN向压扭性断裂带中,其深部是找矿的有利靶区。     

基于3DMine的贾家堡铁矿储量估算研究

在贾家堡地质数据库的基础上,利用3DMine矿业软件进行样品组合,并对组合样进行地质统计学分析;根据分析后的矿体品位空间变异情况,运用距离平方反比法及普通克里格法对块体模型进行品位估值,并分别生成矿体资源量报告,比较了两者的储量计算结果,并探讨了在资源管理及采矿设计中的应用。     

Advancements in the design and validation of an air pollution integrated assessment model for Spain

This paper describes the design and application of the Atmospheric Evaluation and Research Integrated model for Spain (AERIS). Currently, AERIS can provide concentration profiles of NO₂, O₃, SO₂, NH₃, PM, as a response to emission variations of relevant sectors in Spain. Results are calculated using transfer matrices based on an air quality modelling system (AQMS) composed by the WRF (meteorology), SMOKE (emissions) and CMAQ (atmospheric-chemical processes) models. The AERIS outputs were statistically tested against the conventional AQMS and observations, revealing a good agreement in both cases. At the moment, integrated assessment in AERIS focuses only on the link between emissions and concentrations. The quantification of deposition, impacts (health, ecosystems) and costs will be introduced in the future. In conclusion, the main asset of AERIS is its accuracy in predicting air quality outcomes for different scenarios through a simple yet robust modelling framework, avoiding complex programming and long computing times.     

用基因表达式编程生成数字高程模型

数字高程模型是地理信息系统进行地形分析的基础。在处理采样点缺失时,常用的空间插值方法难于客观地确定插值函数结构和参数。本文将基因表达式编程技术应用到数字高程模型的生成中,做了下列工作：（1）形式化描述高程基因,缓冲区和簇等概念;（2）证明了深度定理及引理;（3）提出了缓冲区策略（BS）,适时注入优质高程体;（4）提出了动态簇的搜索算法（DCSA）,方向搜索相关点算法（SCPD）和象限扩展搜索算法（ESDA）,按方向动态扩展搜索簇,避免了冗余点的计算;提出了移动拟合GEP算法（EF-GEP）,插值空间细分,缩小了拟合空间;（5）实验表明新方法是有效的,平均进化代数为227代,平均最高适应度为97.4527,提高了7.23%。三维地质模型形象地表达出了地质体形态结构。