Comprehensive Evaluation on the Irrigation Water Quality in Turpan City Based on Matter Element Analysis Method

Matter-element analysis method was used to construct the comprehensive matter-element model for the evaluation of the quality of various kinds of irrigation water in Turpan City to evaluate the quality of irrigation water（such as river water,spring water, Karez well water, pumped well water） in Turpan City, Xinjiang. The results showed that the quality of the irrigation water was the best in October,which was in Grade I or Grade 2; in May, the quality of some of the irrigation water became poorer to Grade II, which was easy to soil salinization; in March, the detected qualities of the water samples water from the Meiyaogou basin were all in Grade IV, which was not suitable for farmland irrigation. The comparison on the evaluation results of matter-element analysis and fuzzy evaluation method showed that the results of the 2 methods were almost consistent with each other, and showed good uniformity.

Application test of matter element analysis in earthquake forecast

Calculation by means of the previous indices of the seismic activity can have the matter element analysis possess the forecast function. Readjusting repeatedly the grade limit value of every index can maximize the historical fitting ratio of the calculated and actual grade of the annual maximum magnitude, whose result is relatively ideal.

Study on Tourist Carrying Capacity Based on Matter Element Analysis

This paper proposes that it is necessary to implement the concept of tourist carrying capacity to facilitate the tourism planning, and presents a method to evaluate the carrying capacity. The method called matter element analysis can solve the uncertain and incompatible problem of the evaluated factors in assessing carrying capacity.The current state of a destination's carrying capacity can be determined by establishing the standard indexes and the matter element model. Through the evaluating of the travel industry zones of the Autonomous Prefecture of Western Hunan, the method is proved to be simple and feasible, and it is improved to be significant for the tourism planning and determination as well as the sustainable development of the regional tourism.

Evaluation on Urban Land Ecological Security Based on the PSR Model and Matter-Element Analysis: A Case Study of Zhuhai, Guangdong, China

As one of the Special Economic Zones since the reform and opening up, Zhuhai has developed during the past 30 years. Its economic development, industrial structure and ecological environment have undergone great changes. Research on changes in Zhuhai’s land ecological security is of great significance. Using relevant data from 2007-2012, this study established a land ecological security assessment system based on the PSR conceptual framework model. The system contained 18 indicators from 3 aspects according to the concrete features of Zhuhai. Then we used the matterelement analysis and the improved entropy weight to analyze and evaluate the land ecological security of Zhuhai. The results showed that: from 2007 to 2012, the levels of the land ecological security of Zhuhai were “secure”, and the value increased year by year;as the land ecological security response value increased, Zhuhai was capable of solving land ecosystem problems. However, it should be noted that the structure of land ecosystem in Zhuhai has not formed and that rapid expansion of construction land has caused the shortage of cultivated land and other issues. Measures should be taken to control the construction area, improve land intensive utilization and improve the land ecological security.

Integrated Evaluation of Air Traffic Controller Workload Based on Matter-Element Analysis

A model for evaluating the controller workload was presented based on matter-element analysis, particularly from a mansystem engineering perspective. On the basis of a questionnaire survey, 18 kinds of indexes which influence the controller workload were determined. By establishing the classical field and node field of the controller workload, the correlation function of the controller workload grade was obtained; then the correlation degree and estimated grade of controller workload were given. A case study verifies the feasibility of the proposed evaluation method.

Application of Matter Element Analysis Theory for Blasting Classification of Rock

The grading criterion of blasting classification, evaluating indexand the characteristic value are taken as matter elements. first, therelational function is constructed according to the gradingcriterion, and then, the grade of rock blasting is evaluated by thecomprehensive relational degree. The author has presented a systemmethod of blasting classification of rock. The practical exampleproves that it is simple in calculation and reasonable in evaluation.

Expert Anti-Evaluation Model Based on Matter-Element Analysis in Fund Project Peer-Review System

The article analyses several key issues which restrict the effectiveness of fund project peer review work. It analyses the evaluating theory and matter-element theory to access the expert anti-evaluation model, and also studies the expert anti-evaluation index system to support the anti-evaluation method. The practical basis is the true score data of the experts which is collected from the actual anti-evaluation in Liaoning province science and technology fund project peer review system. With the practical experience of the actual project, we prove that the expert index system anti-evaluation model and expert anti-evaluation method can improve the fund project peer review work and play a positive role for the peer review work and also make the review work more scientific and more rational.

Elemental Analysis of Air Suspended Particles in Rasht City Using Instrumental Neutron Activation Analysis

Instrumental neutron activation analysis （INAA） has turned out to be particularly useful in the analysis of suspended particles. This work describes the INAA characterization of air particulate matter collected in Rasht city, Iran. The particulate matter was collected in two sampling sites for elemental analysis in the period of winter-summer 2009. Samples have been transferred to the environmental laboratory of radiation applications research school. Neutron exposures were performed in Tehran Research Reactor, and measurements were carried out using HPGe detectors coupled to gamma ray spectrometer. In these filter samples, the elements, AI, As, Ba, Br, Ca, CI, Co, Cr, Cu, Fe, Hg, K, La, Mg, Mn, Na, Sb, Sc, Ti, V and Zn were determined using different irradiation and counting protocols. Results show that mean concentration of most air-pollutants in Rasht are lower than those measured in other cities in Iran （Tehran, Shiraz, Isfahan）. Collected data were also compared with reported results for other cities in the world.

Application of Improved Matter-element Extension Method in Comprehensive Assessment of Shallow Groundwater

Taking shallow groundwater in Jinjiang City,Fujian Province for example,it was found that the classical element-matter analysis shows deficiency in calculation of correlation function,so the improved matter-element method was applied for the comprehensive assessment of shallow groundwater in Jinjiang City,and the spatial distribution was shown in maps.The assessment results demonstrated that ground water quality of most regions in the study area belonged to Grade I and II,thus the overall quality of shallow groundwater was good.The groundwater of Grade IV and V(relatively poor and extremely poor) was mainly distributed in Dongshi Town,Chendi Town,Zimao Town,and Shenhu Town,major exceeding-standard factors that influence shallow groundwater quality in the local area included TDS,Mn^(2+),NO_3,NO_2,NH_4^+ and Cl^-,which mainly owed to invasion of seawater,original geological conditions,industrial and agricultural discharge,and human life.

基于AHP-FMEA的航材仓库选址合理性评价研究

针对后方航材仓库建设过程中选址这一多属性决策问题,提出一种基于层次分析法(analytic hierarchy process,AHP)和模糊物元分析法(FMEA)的物流中心选址方案的优度评价方法。根据航材仓库选址方案评价问题的特点,在考虑选址方案评价指标信息模糊性特征的基础上,对后方航材仓库选址影响因素进行分析,建立物元模型,通过AHP计算出各评价因子权重及关联函数,对选址方案合理性进行评价,比较选择出整体最优方案。实验结果证明:该方法可以方便地获得最优的综合评价方案,通过对各特征量值关联度的分析揭示待评对象的利弊面,从而指导航材仓库需选址方案的动态管理。

基于IFOA-KELM-MEA模型的游梁式抽油机采油系统井下工况的短期预测

实现对井下工况的预测是及时掌握抽油井生产状态的有效方法,对提高油井生产效率和降低维护成本具有十分重要的意义。采用混沌理论实现抽油井井下工况的短期预测,首先将所提取的示功图的不变曲线矩特征向量作为预测变量,在证明其数据序列具有混沌特性后,由核极限学习机(kernel extreme learning machine,ELM)建立混沌时间序列预测模型,对其中的几个不确定参数采用改进的果蝇优化算法(improved fruit fly optimization algorithm,IFOA)进行优化选取,IFOA采用全局群体多样进化和局部个体随机变异的策略,最后,对模型所预测的结果进行物元分析(matter-element analysis,MEA),诊断其属于哪种故障类型。由某油田作业区的两口生产井进行实例验证,结果表明所提出的IFOA-KELM-MEA预测模型是合理有效的。

航空公司安全韧性评价模型

为科学量化航空公司应对风险冲击与扰动,保持安全运行水平稳定的能力,将“安全韧性”概念引入航空公司安全管理,构建航空公司安全韧性评价模型。基于交通运输领域对韧性内涵的理解,提出航空公司安全韧性概念曲线,明确了航空公司安全韧性包括风险应对能力和安全运行恢复能力两方面。运用文献计量法和专家访谈法建立了航空公司安全韧性评价指标体系。运用序关系分析法和物元可拓理论构建了航空公司安全韧性评价模型。运用该模型对A航空公司进行评价,结果表明,A航空公司安全韧性等级为五级,处于优秀水平,与公司现阶段实际情况基本相符。

面向环境保护的黄河流域现代产业体系发展评估及空间格局分析

实现黄河流域高质量发展,必须实现产业体系的高质量发展,关键是要构建面向环境保护的黄河流域特色优势现代产业体系。本文在梳理现代产业体系内涵的基础上,构建了包括产业结构协调化、产业发展集聚化、产业竞争力高端化、环境友好化的现代产业体系评估框架,运用模糊物元分析法对黄河流域现代产业体系发展指数进行综合评估,并通过莫兰指数分析其空间格局演化趋势。结果表明:①2010—2020年间,黄河流域现代产业体系发展指数呈波动性增长态势,上、中、下游之间分异特征显著;②从全局上看,黄河流域现代产业体系发展指数具有明显的空间自相关性,呈现较强的空间集聚效应,且波动上升;③从局部上看,黄河流域现代产业体系空间分布格局较为稳定,观察期内未发生象限跃迁,存在显著的空间依赖关系。建议各省加强环境治理,重点推进中下游现代产业体系发展,并加强区域间协同合作发展。

基于物元模型的航道枢纽拥堵风险评估

航道枢纽作为构建综合交通运输体系的重要组成部分,其拥堵性评估将为整个航道的畅通安全运营提供决策依据。针对航道枢纽随时可能产生拥堵的风险,系统分析了与之相关的影响因素,通过建立物元模型,应用区域关联函数分析方法及层次分析法,对枢纽的拥堵性进行评估,以此为基础制定出相应对策来提高通过效率,并有效保障船舶在营运过程中的畅通与安全。

物元可拓法在引水隧洞围岩稳定性评价中的应用

为预防和控制引水隧洞中围岩失稳事故的发生,将物元可拓法应用于围岩稳定性评价中。以滇中引水工程为背景,选取滇中引水工程某隧洞段,构建引水隧洞围岩稳定性评价指标体系,划分围岩等级,选用灰色关联分析法(Grey Relational Analysis, GRA)和因子分析法(Factor Analysis, FA)组合确定权重,基于物元可拓模型进行引水隧洞围岩稳定性评价,以期减少目前评价方法中一些不相容现象及其他问题所带来的影响,从而提升长距离特大输水工程围岩稳定性等级评价的精度。结果表明,GRA-FA-物元可拓模型围岩稳定性评价结果与实际等级基本相符,与逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution, TOPSIS)相比,预测评价精度从62.5%提升到87.5%,准确性提升了约25百分点。因此,GRA-FA-物元可拓模型相较以往的评价模型可以更全面和客观地进行引水隧洞围岩稳定性评价,可为其他长距离特大引水工程施工风险评价提供理论支撑。

阳澄湖入湖河道分类、污染特征分析及治理策略

为进一步揭示阳澄湖入湖河道的污染物来源,提出相应的治理对策,以2017—2021年阳澄湖入湖河道水质监测数据为基础进行分析讨论。依据入湖水量选取10条主要入湖河道进行分析,其中位于阳澄湖东岸的白曲港在七浦塘拓浚工程建成之前主导流向为出湖,工程建成后,通过Pearson相关分析证实了其流向与七浦塘引水时的水力关系,因此白曲港被选为主要入湖河道。采用距平系数法、系统聚类法和物元分析法将阳澄湖主要入湖河道分为3个类别:第1类别包括白荡、蠡塘河、北河泾、永昌泾4条河道,第2类别包括渭泾塘、界泾和施家斗港3条河道,第3类别包括南消泾、七浦塘和白曲港3条河道。使用因子分析法进行因子分析,第1类别河道的因子为高锰酸盐指数(COD_(Mn))、氨氮(NH_(3)-N)、溶解氧(DO)和总磷(TP),第2类别河道的污染因子为NH_(3)-N、总氮(TN)、pH、TP和DO,第3类别河道的污染因子为pH、TP、TN和DO。通过对上游河道水质情况分析、文件研究以及实地调查等方式得出第1类别河道区域的污染源主要为工业污染源和生活污染源,第2类别河道区域污染源主要为工业污染源与种植业污染源,第3类别河道污染源主要为陆地水产养殖污染源与种植业污染源。针对总体污染源情况,建议通过控制点源污染、削减面源污染、增强上游河道治理、开展生态治理修复以及加强巡查监管等方式对各类别河道区域进行针对性治理,以提高入湖河道水质,为阳澄湖的系统性和整体性治理打好基础。

耕地保护经济补偿实施绩效与实施偏差

在“经济-生态-福利”绩效内涵及评价模式构建基础上,引入物元可拓模型,探讨了成都市2009—2018年耕地保护经济补偿绩效并分析其实施偏差。结果表明:①2009—2018年成都市耕地保护经济补偿绩效水平等级整体呈现出“较差”等级向“优秀”等级跃升趋势,但其转化状态不稳定。②2009—2018年成都市耕地保护经济补偿政策在经济绩效方面的作用较为显著,而其生态绩效和福利绩效却整体偏低。③政府耕地保护经济补偿成本系数、农村人均可支配收入、农村社会消费品零售额、农村居民参加社会养老保险人数等指标对成都市耕地保护经济补偿绩效提升有重要贡献,而化肥施用量不合理与耕地保护的农村劳动力投入过少成为制约其绩效提升的关键因素。④耕地保护的多重显性和隐形效益是耕地保护经济补偿绩效实施较低的内在因素,而耕地保护相关利益主体在耕地保护经济补偿政策实施过程中的行为抉择是其绩效高低的核心外在因素。因此,加强耕地保护经济补偿绩效内涵及绩效动态评估模型研究,探索耕地保护的多重显性和隐形效益显化及内化机制应成为今后研究重点。

常州市大气PM_(2.5)中金属元素浓度变化、来源及健康风险-以武进区监测点为例

目的探讨常州市武进区大气细颗粒物(PM_(2.5))中金属元素浓度变化、来源及健康风险。方法2016-2022年,每月定期采集常州市武进区大气PM_(2.5)样品,采用电感耦合等离子体质谱(ICP-MS)法对PM_(2.5)中的金属元素质量浓度进行检测,采用富集因子(EF)法和主成分分析法(PCA)对金属来源进行分析,并评估金属元素可能带来的健康风险。结果2016-2022年共采集610份有效样品,常州市武进区大气PM_(2.5)质量浓度的M(P_(25),P_(75))依次为70(40,110)、54(41,79)、56(38,85)、54(41,76)、41(28,58)、40(28,60)和39(28,54)μg/m^(3),整体上呈递减趋势且差异具有统计学意义(P<0.05)。各金属元素浓度整体上表现为:铝>锰>铅>铬>镍>锑>镉,除铬元素外,其他元素浓度均表现为冬春季高的特点;除锰的EF值在10~100之间,其他元素的EF值在不同年份和季节均有大于100的情况。PCA结果显示,因子1由锑、铝、镉、铅和锰组成,因子2由铬组成,因子3由镍组成,方差贡献率分别为52.91%、15.46%和10.95%。各元素的危害商(hazard quotient,HQ)整体上从高到低依次为:锰>镍>镉>铝>铬>锑,按中位数浓度计算,各元素HQ值均小于1,铬的致癌风险(carcinogenic risk,CR)均大于10^(-6),镉在2016和2018年的CR值大于10^(-6);按第95百分位数浓度计算,锰的HQ值均大于1,铬、镉和镍的CR值均大于10^(-6)。结论2016-2022年常州市武进区大气PM_(2.5)中多数金属元素浓度水平总体上呈下降趋势,其主要来源有工业排放、交通排放、煤炭燃烧、钢铁工业和航运排放,高浓度锰存在非致癌风险,而铬、镉和高浓度镍存在潜在致癌风险。

基于博弈论和云物元模型的矿山塌陷土地复垦适宜性评估研究

针对矿山塌陷土地复垦适宜性评估指标因素的模糊性和随机性,构建博弈论综合赋权-云物元模型。该模型结合矿山实际情况,从地形环境、水利环境和土壤环境3个方面划定11个二级评估指标,采用遗传层次分析法和变异系数法分别计算各评估指标的主、客观权重,再通过博弈论计算得到指标综合权重,并将云模型引入物元模型。将所建立的模型应用于广西凤凰山银矿,计算了一级指标关联度和综合关联度,并进行土地复垦适宜性评估。结果表明:1^(#)塌陷区和6^(#)塌陷区复垦为林地的适宜性评估等级为“勉强适宜”;2^(#)塌陷区、3^(#)塌陷区、4^(#)塌陷区、5^(#)塌陷区和7^(#)塌陷区复垦为林地的适宜性评估等级为“中等适宜”。评估结果与现场调研情况相吻合,可为矿山塌陷土地复垦工作实施提供新的思路。

时空数据影响下耕地空间布局优化模型仿真

由于耕地空间布局不仅需要考虑土地质量和生产潜力,还需要综合考虑环境保护、水文特征等因素影响,增加了空间布局规划的复杂性。为此,提出一种时空数据随机性影响下耕地空间布局规划方法。根据栅格空间数据和线性加权方法构建耕地布局规划模型,通过耕地质量自相关性计算耕地各指标数值,结合最优组合赋权法确定评价体系权重,利用增量自相关分析,归一化处理耕地指标数值,基于物元矩阵计算耕地地质环境的经典域与节域,获取耕地地质环境评价的综合关联程度,实现耕地空间布局规划。实验结果表明,所提方法时空数据随机性特征识别能力更强,耕地分类精度为94%,耕地空间布局规划效果好,空间集约性高,较小的耕地区域占地面积的NNI指数高达0.634。