Thinking on Several Problems of China's Strategic Mineral Resources Security Guarantee北大核心CSCD

当前波谲云诡的国际形势下,战略(关键)矿产已成为各国贸易争端焦点。我国已将“资源安全”纳入16个国家安全之中。本文在系统梳理全球主要经济体战略(关键)矿产资源策略的基础上,针对我国战略矿产资源供应链产业链存在的四大堵点和难点,提出了四个方面建议:①顶层设计、整合资源,推动国有地勘单位深度改革,着力建设具有国际竞争力的中央所属国有地质勘查企业集团,履行央企职责,承担极端条件下战略矿产资源安全保障特殊功能;②战略布局,高起点,着力打造战略矿产资源安全保障产业链链长,全面协调打通供应链产业链的堵点和难点;③部委协同,系统梳理,着力推动战略矿产资源安全保障法治体系建设;④生态先行,资源环境并重,着力推动生态保护与资源安全“双轮驱动”。     

试谈煤炭地质科研单位薪酬分配制度改革

文章介绍了煤炭地质科研单位薪酬分配制度的现状以及发展的趋势,通过分析煤炭地质科研单位薪酬分配制度存在的问题在内、外部环境对煤炭地质科研单位薪酬分配制度改革的要求,提出现阶段煤炭地质科研单位在体制改革过程中薪酬分配制度改革的思路。     

地勘单位企业化改革的理性思考——东北煤田地质局一0七队产权制度改革的启示

东北煤田地质局107队通过资本运作，职工参股，资本量化，产权多元，股本流动等多种形式，试行模拟改制，调动了投资者、经营者、劳动者三方面的积极性，为推动地勘单位的企业化改革进程积累了一定的经验。     

Applying a modified conduit flow process to understand conduit-matrix exchange of a karst aquifer

Due to the high heterogeneity and complexity of water flow movement for multiple karst water-bearing mediums,the evaluation,effective development,and utilization of karst water resources are significantly limited.Matrix flow is usually laminar,whereas conduit flow is usually turbulent.The driving mechanisms of water exchange that occur between the karst conduit and its adjacent matrix are not well understood.This paper investigates the hydrodynamic characteristics and the mechanism of flow exchange in dual water-bearing mediums(conduit and matrix)of karst aquifers through laboratory experimentation and numerical simulation.A karst aquifer consisting of a matrix network and a conduit was proposed,and the relationship between the water exchange flux and hydraulic head differences generated from the laboratory experiments was analyzed.Two modes of experimental tests were performed with different fixed water level boundaries in the laboratory karst aquifer.The results indicate that the water exchange capacity was proportional to the square root of hydraulic head differences.The linear exchange term in the conduit flow process(CFP)source program was modified according to experimental results.The modified CFP and the original CFP model experimental data results were compared,and it was found that the modified CFP model had better fitting effects.These results showed that the water exchange mechanism between conduit and matrix is very important for solid-liquid interface reaction,water resource evaluation,and understanding of karst hydrodynamic behavior.     

陕西省国有地勘单位改革发展刍议

党的十八届三中全会作出了全面深化改革的战略部署,国有地勘单位改革也随之进入攻坚期、深水区。如何借鉴经验教训,深化国有地勘单位改革,这值得深思。陕西省国有地勘单位在全国率先统一由事业单位改制为国有企业,在国有地勘单位改革中形成了"陕西模式"。本文概述了陕西省国有地勘单位改革发展历程,分析了在改革主导、管理体制、运行机制和变革途径等方面呈现的改革特点,梳理了在构建现代企业架构、激发市场化经营思维、拓宽服务领域、增强地勘企业经济效益和建实省级公益性地勘队伍等方面取得的改革成效。文章认为,当前市场环境、现有顶层设计以及自身发展基础等均不利于改制后的国有地勘单位发展壮大,国有地勘单位企业化改革的"陕西模式"面临升级。     

Optical and infrared observations of SN 2002dj: some possible common properties of fast-expanding Type Ia supernovae

As part of the European Supernova Collaboration, we obtained extensive photometry and spectroscopy of the Type Ia supernova (SN Ia) SN 2002dj covering epochs from 11 d before to nearly two years after maximum. Detailed optical and near-infrared observations show that this object belongs to the class of the high-velocity gradient events as indicated by Si, S and Ca lines. The light curve shape and velocity evolution of SN 2002dj appear to be nearly identical to SN 2002bo. The only significant difference is observed in the optical to near-infrared colours and a reduced spectral emission beyond 6500 Å. For high-velocity gradient SNe Ia, we tentatively identify a faster rise to maximum, a more pronounced inflection in the V and R light curves after maximum and a brighter, slower declining late-time B light curve as common photometric properties of this class of objects. They also seem to be characterized by a different colour and colour evolution with respect to 'normal' SNe Ia. The usual light curve shape parameters do not distinguish these events. Stronger, more blueshifted absorption features of intermediate-mass elements and lower temperatures are the most prominent spectroscopic features of SNe Ia displaying high-velocity gradients. It appears that these events burn more intermediate-mass elements in the outer layers. Possible connections to the metallicity of the progenitor star are explored.     

改革“GPS原理与应用”课程教学，培养导航人才

分析了“GPS定位原理与应用”的课程特点,和当前教学现状,强调为适应GPS技术的快速发展及针对培养我国北斗导航人才的迫切需要,进行教材建设、师资力量培养、教学实施的改革,针对不同专业学生,优化课程内容配置,注重课程体系建设,并适当运用现代化教学手段,提高教学质量。加强GPS接收机关键技术教学,以适应我国北斗二代导航的需要,为我国培养优秀的专业技术人才。     

地质找矿改革发展面临的突出问题与对策

国有地勘单位的改革始于20世纪末,以原地矿部所属的地勘队伍以及工业部门所属的大部分地勘单位属地化为标志,国有地勘单位开始了企业化进程。国家一系列优惠政策,给地勘单位的发展注入了新的活力。国家在加大对地勘单位投入的同时,放开了民营资本进入地勘市场的限制,商业性地勘市场出现了前所未有的繁荣,并取得了一大批重要的地质找矿成果。但国民经济的快速发展及国际矿业巨头的垄断,致使国内矿产品供需矛盾日益突出,经济发展对地质技术保障能力的要求被迅速放大,同时地勘单位体制机制的不和谐性也显现出来,具体表现为:勘查体制不顺、找矿机制不活、政策落实不够、勘探能力不强等。针对上述突出问题,提出了完善勘查体制、创新找矿机制、推进政策落实、提升勘探能力等相应的对策。     

“数字图像处理技巧”通识课程的建设与改革

数字图像处理技巧是继2004年“数字图像处理”课程获得国家精品课程以来,遥感信息工程学院面向全校开设的首批通识教育选修课之一.课程组对该课程教学内容、教材、教学方法与手段、网络资源建设和师资队伍等方面进行建设与改革,其成果在教学实践中得到推广应用,取得了优良教学效果.     

在机构改革中做好交接处置科技档案资料工作

目前 ,省一级的机构改革工作正式开始 ,在机构改革过程中 ,档案部门和有关单位要做好地质科技档案的管理工作 ,确保档案得到妥善处置