Selection and evaluation of suitable tree species in dry and dusty mining areas of Northwest China

To select drought-resistant and dust-tolerant native species suitable for use in the rehabilitation of major coal bases in northwest China,nine tree species were identified for growth rates,biomass,harm index,and physiological indices under drought and high dust stress conditions.The results showed that,in the dust resistance index system,the order was Caragana korshinskii>Amorpha fruticosa>Sabina vulgaris>Hedysarum scoparium>Tamarix chinensis>Ammopiptanthus mongolicus>Ulmus pumila>C aryopteris mongholica>Elaeagnus angustifolia.In a comprehensive drought and dust resistance index system,14 indices(such as shoot length,stomatal conductance,and peroxidase)had the larger weight indices.The drought and dust resistance order of the tree species was C aragana korshinskii>Ulmus pumila>Amorpha fruticosa>Sabina vulgaris>Caryopteris mongholica>Ammopiptanthus mongolicus>H edysarum scoparium>Tamarix chinensis>Elaeagnus angustifolia.This study provides effective strategies and references for selecting suitable tree species for arid mining sites in China,and also for the revegetation of coal mining sites worldwide.

Research on Scientific Research Performance Evaluation in Colleges and Universities Based on Malmquist Index

Scientific research is of vital importance to the development of colleges and universities.Scientific evaluation of the scientific research performance of colleges and universities,especially the study of their dynamic performance in different time ranges,can not only promote the progress of scientific research in colleges and universities,but also contribute to the rational allocation of national educational resources.Based on the Malmquist index,using the panel data of the five-year period from 2012 to 2016,this paper evaluates the changes in the research performance of China’s colleges and universities,analyzes the influencing factors of total factor productivity changes from three perspectives of time series,comparison of colleges and universities,and regional analysis,and proposes countermeasures and suggestions.

Development unit division and favorable area evaluation for joint mining coalbed methane

Based on the productivity equation of coalbed methane (CBM) well, considering the impact of coal reservoir reformability on gas well productivity, the main production layer optimization index in the “three-step method” of optimal combination of production layers is corrected, and then the CBM production layer potential index is introduced to evaluate favorable areas for commingled multi-coal seam production. Through analysis of the key parameters of coal reservoirs affecting the CBM productivity index, a development unit division method for areas with multi-coal seams is established, and a quantitative grading index system is proposed. On this basis, the evaluation process of CBM development favorable area is developed: the mature 3-D modeling technology is used to characterize the reservoir physical properties of multi-coal seams in full-scale;the production layer potential index of each grid is calculated, and the production layer potential index contour under single-layer or commingled multi-layer production are plotted;according to the distribution of the contour of production layer potential index, the quantitative index of CBM development unit is adopted to outline the grade I, II, III coal reservoir distribution areas, and thus to pick out the favorable development areas. The practical application in the Yuwang block of Laochang in Yunnan proved that the favorable area evaluation process proposed can effectively overcome the defects of selecting favorable development areas only relying on evaluation results of a major coal seam pay, and enhance the accuracy of the evaluation results, meeting the requirements of selecting favorable areas for multi-coal seam commingled CBM production.

A Systemic Approach Integrating Genetic, Mining and Management Visions: The Geologic and Mining Knowledge System

Following the example of other industrial activities, mining evaluation is now exposed to socio-economical and technological constraints which are unstable in quick evolution. The keys to its success are increasingly related to a methodology of work more scientific than ever. The Systemic Approach has broadly showed its effectiveness in numerous disciplinary fields, both scientific and engineering ones: Biology, Economy, Social and Management Sciences, Quality Management, Information Systems… Helped by technological progress, this approach has especially excelled in the management of spatial information (e.g. GIS). It constitutes therefore an excellent solution to the problems of mining evaluation by the integration of genetic, mining and managerial data within an Information System, thus optimizing scientific and economic valuation of mineral resources.

An Evaluation Study on Water Ecological Civilization Construction in Coal Mining Subsidence Area

By combining expert consultation and field investigation,an evaluation system,consisting of 29 indices in 5 aspects of water safety,water ecology,water management,water landscape and water culture,was established for water ecological civilization construction in coal mining subsidence areas.The weight of the indices was determined using improved group-decision fuzzy analytic hierarchy process and fuzzy mathematical method,and their score was determined according to their value before the pilot and the value at the end of the pilot.Combined with the weight,the actual score of the indices was obtained.Finally,a comprehensive index of water ecological civilization in coal mining subsidence areas was obtained.Through the weight and score of the indices,the construction status,existing problems and future tasks of coal mining subsidence areas were analyzed,in order to provide a reference for the region to further clarify the direction and key tasks of water ecological civilization construction.

Evaluation of the Safety of Mine Road Based on Fuzzy Analytic Hierarchy Process

Generally, mine roads are located in the mountain areas, as its complex topography, mostly along the river near the cliffs, steep bend anxious, the mine road design has to adopt lower technical standards relatively and usually is lack of traffic safety facilities. Especially, there are mainly medium-sized vehicles on mine road, under the heavy traffic vehicles affect repeatedly, high frequency of traffic accidents more easily happen in mine road area and cause serious effects on life or property. Combining with the particularity of mine road safety environment, this paper studies the basic theory of safety evaluation, analyses the factors of traffic safety design and special mine terrain conditions, and then establishes mine road safety index system and evaluation model based on the principles such as systematicness, independent indexes, qualitative and quantitative analysis, feasibility, scientificity and reliability. At last, the paper successfully evaluates the safety of road in Huang Mailing phosphate rock area with fuzzy AHP method based on engineering project.

基于Nature Index的中国部分高校生命科学科研产出的分析

采用英国自然出版集团发布的2014年生命科学学科的自然指数作为数据来源,分别整理统计43所高校的论文数指标、分数计数指标、加权分数计数指标、国内合作与国际合作占比,在此基础上对比分析了2014年中国部分高校生命科学学科的科研产出情况,并就如何缩小中国与美国的生命科学学科的科研实力差距提出了建议,包括图书馆作为科研服务部门应开展关于科研评价指标介绍、高质量期刊投稿指南等讲座,以提高学校在顶级期刊上发文的命中率。

A Criteria-based Assessment of the Coverage of Scopus and Web of Science

Purpose: The purpose of this study is to assess the coverage of the scientific literature in Scopus and Web of Science from the perspective of research evaluation.Design/methodology/approach: The academic communities of Norway have agreed on certain criteria for what should be included as original research publications in research evaluation and funding contexts. These criteria have been applied since 2004 in a comprehensive bibliographic database called the Norwegian Science Index(NSI). The relative coverages of Scopus and Web of Science are compared with regard to publication type, field of research and language.Findings: Our results show that Scopus covers 72 percent of the total Norwegian scientific and scholarly publication output in 2015 and 2016, while the corresponding figure for Web of Science Core Collection is 69 percent. The coverages are most comprehensive in medicine and health(89 and 87 percent) and in the natural sciences and technology(85 and 84 percent). The social sciences(48 percent in Scopus and 40 percent in Web of Science Core Collection) and particularly the humanities(27 and 23 percent) are much less covered in the two international data sources. Research limitation: Comparing with data from only one country is a limitation of the study, but the criteria used to define a country's scientific output as well as the identification of patterns of field-dependent partial representations in Scopus and Web of Science should be recognizable and useful also for other countries. Originality/value: The novelty of this study is the criteria-based approach to studying coverage problems in the two data sources.

Sustainable development of coal cities in Heilongjiang province based on AHP method

The sustainable development of coal mining cities in Heilongjiang province has important effect on the economic stability and development of Heilongjiang, Northeast China, and China at large. To further the sustainable development evaluation system of coal mining cities in Heilongjiang province, based on the analytic hierarchy process （AHP） method combined with operational and scientific principles using Saaty＇s 1-9 scale method to construct the judgment matrix from five aspects, such as economic development and environmental quality, this paper establishes the comprehensive evaluation index sys- tem of sustainable development of coal mining cities in Heilongjiang province, including comprehensive index of industrial economic benefits and the contribution rate of science and technology. In addition, using fuzzy comprehensive evaluation method, a comprehensive evaluation is made on the indices of the four major coal mining cities of Heilongjiang. The result shows that the coal mining cities are not bet- ter than Datong of Shanxi province in many indices. The economic development and environment quality are the most important indices of the targeted layer influencing the sustainable development of coal min- ing cities of HeilonKiiang, and their index weights are 0.4358 and 0.2844, respectively. These two indices including comprehensive index of industrial economic benefit and the ratio of environmental protection investment to GDP are the key elements influencing the two aspects.

Empirical research of advantage disciplines of C9 League

Purpose:Based on the case of the top nine elite universities in China(i.e.C9 League),we evaluate the university discipline advantages in terms of outputs and influence of scientific articles.Combining with the discipline collaboration analysis,we provide suggestions on discipline development and future collaboration for C9 League members.Design/methodology/approach:First,we carry out a correlation analysis.Then,we obtain the new combination evaluation indicators through factor analysis on seven primary indicators from InCite platform.Afterwards,we assign the weighted values to different indicators in order to get the evaluation scores and the ranking for each C9 League member.Then,we obtain the bibliographic data of the C9 League members for extracting the category classifications from the Web and transforming them into Degree-Granting and Personal Trainning Courses Catalogue(DPTCC).According to the original collaboration frequencies among C9 League members,we carry out the analysis on two-mode collaboration networks.Finally,we propose some suggestions on the future collaboration and development.Findings:There is correlation relationship between the outputs of scientific papers and influence indicators,so it is necessary to use the various indicators to acquire the more scientific evaluation.Meanwhile,league members are different in the discipline development level,and have inadequate collaboration with each other,which indicates that there exists the great potential for further collaborations.Research limitations:Despite the relative high quality SCI papers,preference for different disciplines of SCI and different discipline features for C9 members probably exert negative influence on evaluation results.Practical implications:We provide a research thought and an operational approach to the disciplines evaluation,which would promote more methods for scientific discipline evaluation and reasonable management for universities.Originality/value:There are more and more articles on the universities evaluation indexes,but rarely on the relationship among the indicators.Therefore,our approach would be helpful for the evaluation of university disciplines.

科技人才评价研究综述

加强科技人才评价研究,有助于发挥“评价”的“指挥棒”和“风向标”作用,充分激发科技人才的创新创造活力,为加快实现高水平科技自立自强和建成科技强国的宏伟目标提供有力的人才支撑。综述了科技人才评价对象的研究现状,从专家定性评价法、定量指标评价法以及综合评价法3个方面对科技人才评价方法进行述评,重点介绍了层次分析法、熵值法、因子分析法、基于熵权的TOPSIS法、模糊综合评价法,对科技人才评价常见指标体系进行了梳理总结,展望了科技人才评价的发展趋势,结合当前形势与政策,提出今后应进一步细化评价对象分类研究,注重科技人才评价指标的价值导向和数字化技术在科技人才评价中的深化应用。

基于地表敏感变形和房屋因素的矿区建筑物损坏评价方法

针对目前建筑物采动损坏评价因素的不尽合理与区域性评判结果的局限性,提出基于地表敏感变形和房屋因素的矿区建筑物采动损坏评价方法。采用理论分析、数值模拟和现场调查等方法对建筑物采动损坏评价进行了研究与探讨。首先,采用数值模拟方法,揭示地表变形、建筑物结构类型、主变形方向与建筑物长轴的夹角等因素对建筑物损坏影响规律,模拟结果表明:①当沿建筑物长轴的变形增大时,建筑物的损坏程度增大,得出了平房建筑加速损伤的地表变形临界值为曲率K=0.6 mm/m^(2),水平变形ε=6 mm/m;②不同结构的建筑物损坏程度不同,其中具有圈梁或构造柱的建筑物抗变形能力强,研究并确定了二层砖混结构(圈梁和构造柱)损坏程度的地表临界变形值;③建筑物对其长轴方向的地表变形较为敏感,影响损坏大,但对其长轴的垂直方向的变形不太敏感,而变形与建筑物斜交方向的建筑物损坏程度介于2者之间。其次,基于地表敏感变形因素、主变形方向、房屋因素共选取7个评价指标,建立建筑物采动损坏评价的未确知测度模型,根据各评价指标对建筑物的重要程度,采用层次分析法定权;最后,应用于峰峰矿区和徐州矿区3个村庄的建筑物损坏实例,结果表明:在选取的50户140余栋建筑物评价中,预测准确率在80%以上,预测精度高于传统方法,且预测效果良好,弥补了传统评价方法的不足,验证了评价指标选取和评价模型的可靠性。

基于PMC指数模型的中国省域科技成果转化政策量化评价分析

科技成果转化政策需要充分且有效的政策体系支持,政策文本量化能为政策的制定与完善提供参考,促进科技成果转化政策精准发力。通过构建多维度评价指标体系评价中国省域科技成果转化政策水平,为省级区域政府进一步优化科技成果转化政策、促进科技成果顺利转化提供参考。基于2015年以来我国省域科技成果转化政策包含的高频词,构建包括9个一级指标和42个二级指标的科技成果转化政策评价指标体系,结合PMC指数模型对省域科技成果转化政策文本进行量化评价。结果显示:我国30个省份科技成果转化政策的PMC指数均值为7.57分,整体政策处于良好级别,但还存在政策工具结构不均衡、政策视角考虑不全、政策目标内容欠周、政策客体单一化和政策保障手段不完善等5个方面共性问题。由此提出优化政策工具结构、拓宽政策视角、改进政策目标、丰富政策客体和完善政策保障手段等针对性建议。

新质生产力视域下中国高校科技创新力评价及影响因素研究

习近平总书记立足于我国经济发展时代特征提出新质生产力概念,并作出一系列重要论述。新质生产力是在新技术革命推动下,以信息技术、人工智能为引擎,以科技创新为驱动力的生产力形态,是高质量发展的强劲推动力、支撑力。高校作为国家创新体系的重要组成部分,在基础研究、应用研究、成果转化等方面发挥着重要作用,取得了一批重大科技成果,但还存在着诸多不足,面临不少困难和问题。在习近平总书记关于新质生产力重要论述的指引下,准确把握高校科技创新的重要地位和独特优势,客观评价我国不同地区高校科技创新力发展水平,分析存在的问题,提出对策建议,具有极其重要的意义。文章采用TOPSIS法测算我国31省(自治区、直辖市)高校科技创新力指数,基于空间自相关理论探究我国高校科技创新力指数的空间关联特征,运用泰尔指数分析我国高校科技创新力指数的空间差异性,运用地理探测器原理研究我国高校科技创新力的影响因素及其交互作用。研究结果发现:我国31省(自治区、直辖市)高校科技创新力整体还不强,创新力指数的空间分布不均衡,东部地区明显高于中部和西部地区;空间自相关性显著,上海、江苏、广东、浙江等指数较高省份呈现“高-高”集聚特征,甘肃、海南、新疆、西藏等指数较低省份呈现“低-低”集聚特征;区域间差异明显,东部和西部地区域内差异较中部地区显著,东部地区内部差异逐渐缩小,中部地区内部差异先增大后缩小,西部地区内部差异有所增大;影响我国高校科技创新力发展的主要因素是人力资源、经费投入等,且区域间投入存在明显差异,中部和西部地区投入不足,同时还受区域对外开放和技术需求等因素影响;内部因素交互作用强度大于外部因素,交互作用强度较大的是教学与科研人员数、科技经费当年拨入、成果应用及科技服务项目数、R&D成果应用及科技服务项目经费当年拨入、信息化水平,且信息化水平发挥的作用越来越大。根据研究结论,以习近平总书记关于新质生产力重要论述为指引,从创新投入、资源配置、资源共享、政产学研合作等方面提出对策建议。

世界一流企业科技创新能力评价指标体系研究

加快形成新质生产力是新时代塑造发展新动能的应有之义。提升中央企业科技创新能力并助力其成为世界一流企业,是加快形成新质生产力的关键抓手。从创新决策能力、创新支持能力、创新生态能力、创新攻关能力和创新引领能力等5个维度构建了世界一流企业科技创新能力评价指标体系。评价指标体系是加快建设世界一流企业的“指挥棒”。通过构建科学合理的世界一流企业科技创新能力评价指标体系,以评促改不断提升中央企业科技创新能力,加快培育一批竞争力强的“链主”企业。在指标设置方面,应结合各类中央企业特征、所处行业属性以及内外部环境,使不同类型企业的评价指标能够切实反映其本质特征。

基于PMC指数模型的铁路绿色施工政策研究

研究目的:铁路绿色施工政策是落地铁路可持续发展,打造生态铁路的方向引领与实施保障。铁路绿色施工政策的量化研究可以为政策的制定、修订、完善与优化提供重要的数据决策依据。本文借助ROSTCM6.0文本挖掘工具及PMC指数模型,旨在科学合理地评价我国当前铁路绿色施工相关政策的效果与优劣,为铁路绿色施工政策的高质量制定提供决策支持。研究结论:(1)选取7项铁路绿色施工政策作为研究样本,验证了PMC指数模型在评价铁路绿色施工政策的实用性与可靠性,结果与实际情况符合度较高,表明该模型可为铁路绿色施工政策评价提供借鉴价值;(2)各项政策的PMC指数等级可以有效判断该项政策的优劣,明确政策现状及优化方向;(3)本研究结果可为相关部委及公司制定、优化铁路绿色施工政策提供参考和借鉴。

基于PMC指数模型的老年健康政策量化评价研究

目的/意义通过政策文本挖掘及量化评价,对当前老年健康政策体系建设进行讨论,为未来政策调整和优化提供参考。方法/过程以2019—2023年有关部门出台的老年健康相关政策为研究对象,运用ROST文本数据挖掘工具获得高频词表及语义网络,运用Gephi绘制社会网络关系图进行文本分析,构建PMC指数模型量化分析老年健康相关政策。结果/结论“国家”“社会”“知识”“资源”“保障”等高频词在社会网络中与其他节点密切关联,是老年健康政策的重点领域,老年健康政策制定整体上态势积极。建议提高政策的精准性和适应性,明确政策时间节点与核心要素,增强政策功能和内容的策略分析。

安徽省煤炭资源开发利用水平调查 及问题分析

为了掌握安徽省煤炭资源“三率”情况和综合利用水平,协助管理部门建立合理的矿产资源开发利用评价体系,以2023年度安徽省煤炭资源开发利用水平调查试点工作为基础,梳理了工作方法和工作成果,并对当前煤矿开发利用及管理中存在的主要问题进行了分析,得出以下结论:一是“三率”考核指标存在局限性,不能全面真实反映资源开发利用现状;二是煤炭采出率较低,存在资源浪费问题;三是煤矿资源储量不够明确,管理存在欠缺;四是管理部门和煤矿企业技术力量有待加强;五是煤矿综合利用率指标有待进一步优化。此外,根据存在的问题,提出了具有针对性的管理建议。

科技论文评价指标体系的研究现状及发展研究

文章梳理了我国科技论文评价指标体系的研究现状,总结研究热点、把握研究趋势,为科技论文评价指标体系的完善和发展提供理论参考。采用CiteSpace R6.1可视化分析工具,围绕与“科技论文评价指标体系”相关的关键词进行了系统分析,旨在深入探讨当前研究的热点问题。研究发现,国内相关论文的研究主题主要包括科技论文评价体系指标、指标体系构建、多维指标、学术创新评价、评价改革等。首先,回顾了学术论文评价指标的起源和发展历程,包括传统的引用次数、影响因子等指标,以及近年来兴起的学术社交网络和科学影响力指数等新型指标。其次,通过对相关文献的分析,总结了当前学术界对于评价指标的研究热点和关注领域,包括学科差异、合作网络、知识转化等方面。最后,展望了未来学术论文评价指标的发展趋势,包括引入多维度评价指标、采用人工智能技术进行评估、推动开放科学运动等。

英国政府反恐战略演变:对CONTEST报告文本的量化分析

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