矿产资源资产未来净收益动态预测系统

针对已建立的矿产资源资产净收益动态预测模型比较复杂、计算工作量大、手工计算难以完成的特点，开发了矿产资源资产净收益动态预测软件系统。分析了预测软件的设计思路、主要功能及实现过程，建立了系统软件的功能结构。净收益动态预测软件操作简便，使用方便，使矿产资源资产净收益动态预测能够真正付诸于实际。     

等离子熔射直接制造可视化仿真软件的开发

根据Lattice Boltzmann方法计算原理,设计粉末运动随机算法,首次建立了等离子熔射直接制造技术LBM和随机算法计算模型,采用面向对象系统设计方法,自行开发了可视化动态仿真软件,分析了软件的结构、功能和实现。     

矿产资源储量管理的思路及面临的困境研究

文章通过实施严格的储量动态管理,为建立政府管理与市场运作相结合的资源优化配置打下良好的基础。有利于增强对矿产资源开发利用的监察执法力度,及时发现并制止矿产开发利用中出现的各种违法行为,确保国家资产不流失,确保矿产资源补偿费的足额征收,确保矿业秩序的健康、稳定、有序发展。     

矿产资源动态监督管理系统的开发

本系统是基于地理信息系统（GIS）技术、数据库技术以及网络技术．实现矿产资源信息图形数据与属性数据统一管理的矿产资源动态监督管理系统。系统依据经审查符合要求的全省持采矿许可证的开采矿山的矿产资源储量年报,根据矿产资源储量数据库建库的有关规定．依照建库工作流程,为河北省、市、县三级矿产资源储量监管机构和其他相关用户设计的一套专用软件。介绍了系统的设计思想、功能实现、系统包含的功能模块、各个模块的功能结构以及采用的技术特点。     

浅议我国矿产资源资产评估

在分析我国矿产资源资产情况的基础上,总结了国内矿产资源资产的构成因素,分析了矿产资源资产的属性,并对矿产资源资产以及采矿权评估进行了深入研究,提出当今矿业权市场应该加大管理力度,禁止开采微型矿山,防止国有矿产资源资产流失的具体措施。     

资产收益过程可预测下的动态资产组合选择

基于资产收益过程的可预测性,提出一种新的动态资产组合选择方法.等分投资期,建立各期资产组合中风险资产权重是其预测变量观察值线性关系的模型,将预测变量收益过程引入资产收益过程;通过矩阵变换形成表征资产收益过程的拓展的资产空间,将条件问题求解转化为非条件问题求解,运用均值-方差分析法获得模型系数,使投资者各期终期财富期望二次效用最大;最后,给出模型的算法,进行实证研究.结果表明,预测变量通过拓展的资产空间描述了资产的收益过程;投资者根据各期预测变量的观察值可适时调整资产组合,保持其投资决策的最优化.研究为动态情景下的条件问题求解提供一种方法.     

基于多GIS平台的矿产资源定位预测数据处理方案——以栾川钼钨矿评价为例

矿产资源预测给GIS系统提出了繁杂的目标。多种GIS间数据转换、功能利用往往制约矿产资源的快速评价和工程化开展。本文以河南省栾川钼钨矿评价为例,利用现有多GIS系统,采用软件工程的系统分析方法,建立了基于多GIS平台的操作方案。     

基于无人机倾斜摄影测量的矿产储量动态监测

以广西区内两处露天矿区作为研究区域进行矿产资源储量监测,探讨低空无人机倾斜摄影测量技术在矿产储量监测方面的应用,为矿产资源有效地保护与开发利用提供科学的数据支撑。基于ArcGIS和Context Capture两款软件,详细阐述了利用ArcGIS提取高程点进行数字地面模型(digital terrain model, DTM)法矿区动用储量计算和基于Context Capture软件进行矿产储量计算的两种方法,并运用新兴技术与传统成熟技术结合的方法,实现对露天矿区的储量监测,最后在检验产品精度符合规范要求的情况下,完成两种方法的精度比较。实验结果表明：采用两种不同方法对两处矿区进行矿产资源储量监测,其误差百分比分别为6.17%、0.05%,相对误差均满足规范要求;无人机倾斜摄影技术可用于矿产资源储量的动态监测,该技术在简化作业流程的基础上,可以低成本、快速、动态地实现矿区动用储量的监测,为有关部门的管理和矿产资源的开发利用提供科学的数据支撑。     

单井蒸汽辅助重力驱启动过程动态预测模型

利用物质平衡和能量守恒原理,建立了裂缝性稠油油藏水平井蒸汽吞吐动态预测解析解模型,模型分为注蒸汽加热动态计算、油藏平均压力计算及产量计算三个部分,可以对单井蒸汽辅助重力驱的启动过程进行动态预测。以克拉玛依某油田为例进行了计算,结果表明,该模型能用于裂缝性稠油油藏单井蒸汽辅助重力驱启动过程的动态预测。     

矿产资源评价理论与方法评述

矿产资源评价是一项结构繁杂、功能综合、因素众多的复杂系统工程，矿产资源地质评价是基础，矿产资源综合评价是一种评价指标相对全面的评价方法。系统评述了矿产资源评价理论和方法的研究状况，预测了矿产资源评价的发展方向。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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