Spatial Distribution of Integrated Impact Index of Mega-event——A Case Study of Expo '99 Kunming

Taking the affinity between events and media as a conceptualization base, a total of 1032 related news re-ports of Expo '99 Kunming, gathered from the internet data bank of China INFOBANK from 1992 to 2003, are used as data sources. After classifying them with a communication research method-the content analysis, a data bank for SPSS is set up, and a mathematic model called the Integrated Impact Index of Expo '99 Kunming is constituted. With the model, the spatial distribution of the total integrated impacts of Expo '99 Kunming on the regions or cities with different regional scales is analysed quantitatively. The conclusions are: 1) the Expo '99 Kunming made obvious integrated impacts on the regions or cities of every scale, especially in the venue city and the region-Kunming City and Yunnan Province; 2) it had corresponding impacts on other provinces; 3) the spatial distribution of Integrated Impact Index had a disaggregation with both plane extension and spotted decentralization; and 4) there was a distance decay law in all three scales of regions (Kunming City, Yunnan Province and the whole China), which incarnated the spatial extension law of the integrated impact of a special mega-event.

Assessing the socio-cultural impact of urban revitalisation using Relative Positive Impact Index(RPII)

Urban heritage is a vital resource that connects communities to their local identity.Unplanned developments and rapid urbanisation often harm the authenticity of historic areas,disrupting the cultural fabric and altering their character.This study introduces the Relative Positive Impact Index(RPll),a novel technique for assessing the socio-cultural impacts of urban revitalisation.The significance of RPII lies in its ability to quantitatively evaluate the impacts on the cultural fabric and integrity of historic urban areas,which is crucial for sustainable urban development.The study's objective is to apply RPII in evaluating qualitative socio-cultural characteristics in historic urban areas,with a focus on four main criteria and 16 sub-criteria,in the case of the Kuttichira precinct.The methodology integrates the analysis of published literature,a quantitative survey mapping the stakeholders'perception,and qualitative insights.This approach facilitates an in-depth understanding of how urban revitalisation affects local socio-cultural dynamics,preserving the authenticity and character of historic areas.The study reveals that the revitalisation project in Kuttichira positively impacts the socio-cultural fabric of the area,maintaining cultural integrity and addressing social challenges.These findings offer valuable insights for sustainable urban development and policymaking in historic areas.The study recommends the application of RPll in other urban precincts for comparative analysis and further development of urban development practices,contributing to informed urban policy and planning decisions.

Tropical cyclone hazards analysis based on tropical cyclone potential impact index

Tropical cyclone,a high energy destructive meteorological system with heavy rainfall and gale triggered massive landslides and windstorms,poses a significant threat to coastal areas.In this paper we have developed a Tropical Cyclone Potential Impact Index （TCPI） based on the air mass trajectories,disaster information,intensity,duration,and frequency of tropical cyclones.We analyzed the spatial pattern and interannual variation of the TCPI over the period 1949-2009,and taking the Super Typhoon Saomai as an example have examined the relationship between the TCPI and direct economic losses,total rainfall,and maximum wind speed.The results reveal that China＇s TCPI appears to be a weak decreasing trend over the period,which is not significant overall,but significant in some periods.Over the past 20 years,the TCPI decreased in the southern China coastal provinces of Hainan,Guangdong and Guangxi,while it increased in the southeastern coastal provinces of Zhejiang,Fujian and Taiwan.The highest values of TCPI are mainly observed in Taiwan,Hainan,the coastal areas of Guangdong and Fujian and Zhejiang＇s southern coast.The TCPI has a good correlation （P=0.01） with direct economic loss,rainfall,and maximum wind speed.

Assessing the Impact of Petrol Service Stations on Selected Physico-Chemical Water Quality Parameters within Port Harcourt Metropolis, Nigeria

This study assessed the impact of petrol service stations on physico-chemical water quality in Port Harcourt metropolis, Rivers State. This threw light on the extent of damage and alteration of water quality in Port Harcourt metropolis as a result of the proliferation of petrol service stations especially the condition of ground and nearby surface water. This serves as a useful tool to government and regulatory authorities for planning especially due to lack of central water supply system in Port Harcourt metropolis. The parameters studied were sampled, measured and analyzed using in situ and other standard methods. Remarkable results above permissible limits of interest for physicochemical parameter analysis revealed pH values from 4.6 to 6.8, electrical conductivity from 0.002 µS/cm to 0.42 µS/cm, salinity from 3 ppm to 4050 ppm, and temperatures from 19.9˚C to 32.6˚C. Total dissolved solids (TDS) varied from 7 ppm to 1000 ppm, biochemical oxygen demand (BOD) from 0.167 mg/L to 2.167 mg/L, chemical oxygen demand (COD) from 0.257 mg/L to 3.253 mg/L, and dissolved oxygen (DO) concentrations from 1.70 mg/L to 4.30 mg/L. Specifically, water samples from NNPC Filling Station (Choba) and Eneka Pond displayed “Poor” water quality with WQI values of 112.003 and 112.076, respectively. Similarly, ALLTEC Filling Station (Eneka) and TOTAL Filling Station (Rumuomasi) had “Poor” water quality with WQI values of 173.707 and 180.946, respectively. In contrast, Excelsis Filling Station (Akpajo) demonstrated “Good” water quality with a WQI of 85.2072, while Total Filling Stations (Slaughter) and Choba River revealed “unsuitable for drinking” water quality with WQI values of 552.461 and 654.601, respectively. Slaughter River also indicated very poor water quality with a WQI of 442.024. The physicochemical and nutrient analyses of the water samples showed that activities of the filling stations within the study area may have polluted groundwater in the environment posing poor aesthetics and great health risk to consumers of the water bodies. The findings underscore the need for immediate remediation efforts and stricter regulatory measures to protect water quality. The study concluded that surface and groundwater near petrol service stations in Port Harcourt are unfit for drinking and irrigation purposes without adequate treatment.

基于IMPACT模式的护理管理结合低升糖指数膳食管理对2型糖尿病患者饮食行为及自护能力的影响

目的分析基于IMPACT模式的护理管理结合低升糖指数膳食管理对2型糖尿病(T2DM)患者饮食行为及自护能力的影响。方法选取2021年1月至12月收治的100例T2DM患者为研究对象,按照随机数字表法将其分为对照组与观察组,各50例。对照组采用常规护理干预,观察组在对照组基础上加基于IMPACT模式的护理管理结合低升糖指数膳食管理。比较两组的饮食行为、自护能力以及血糖控制水平。结果干预后,观察组的饮食行为量表各维度评分高于对照组,差异具有统计学意义(P<0.05)。干预后,观察组的自我护理能力测定量表(ESCA)各维度评分高于对照组,差异具有统计学意义(P<0.05)。干预后,观察组的空腹血糖(FBG)、餐后2 h血糖(2 h PBG)水平低于对照组,差异具有统计学意义(P<0.05)。结论基于IMPACT模式的护理管理结合低升糖指数膳食管理不仅能够改变患者饮食行为,还能加强其自护能力,以此提高血糖控制水平,值得推广。

The impact of tourism on soils in Zhangjiajie World Geopark

The soil hardness, soil water content and soil bulk density along the trails of six scenic spots in the Zhangjiajie World Geopark were measured and analyzed, and the integrated effects of tourism trampling on soils were evaluated for each scenic spots by calculating its soil impact indexes （SII） in the park. The results indicated that visitors＇ activities caused a serious influence on the soil in the park, especially in the two most used scenic spots-- Yellowstone Village and Gold Whip Stream. The impact of tourism on soil mainly occurred within 3 m along the trails. The impact shapes are classified into six type as single-sided node type, double-sided node type, cross node type, single-sided linkage type, double-sided linkage type and short-cut linkage type. Of six types of impact shapes, the single-sided node type and double-sided type were dominant. The average water contents of soil for six scenic spots at sample areas of 1 m, 2 m and 3 m from trial is 36.6%, 24.5% and 2.2% lower than that of the control area, respectively. The average soil hardness for six scenic spots at 1m, 2 m, and 3m from the trails tramped increased 167.9%, and 122.2%, and 15.8%, respectively, compared with the control area. Soil bulk density increased 26.5% at 1 m and 20.9% at 2 m from the trails. The main countermeasures for reducing the range and extent of tourism impact on soil are discussed.

Impact of body mass index on outcomes of 48281 patients undergoing first time cadaveric liver transplantation

AIM: To investigate possible disparities in perioperative morbidity and mortality among different body mass index(BMI) groups and to simulate the impact that these differences might have had on the cohort of patients undergoing cadaveric liver transplantation(LT).METHODS: All adult recipients undergoing first time LT for benign conditions and receiving a whole graft from brain-dead donors were selected from the united network of organ sharing registry. From January 1994 to June 2013, 48281 patients satisfied the inclusion criteria and were stratified by their BMI. The hypothesis that abnormal BMIs were independent predictors of inferior outcomes was tested with univariate and multivariate regression analyses.RESULTS: In comparison to normal weight recipients, underweight and morbidly obese recipients had increased 90-d mortality(adjusted OR = 1.737; 95%CI: 1.185-2.548, P = 0.005)(adjusted OR = 1.956; 95%CI: 1.473-2.597, P = 0.000) respectively and inferior patients' survivals(adjusted HR = 1.265; 95%CI: 1.096-1.461, P = 0.000)(adjusted HR = 1.157; 95%CI: 1.031-1.299, P = 0.013) respectively. Overall, patients' 5-year survival were 73.9% for normal-weight, 71.1% for underweight, 74.0% for overweight, 74.4% for class Ⅰ obese, 75.0% for class Ⅱ obese and 71.5% for class Ⅲ obese recipients. Analysis of hypothetical exclusion of underweight and morbidly obese patients from the pool of potential LT candidates would have improved the overall survival of the entire cohort by2.7%(95%CI: 2.5%-3.6%).CONCLUSION: Selected morbidly obese patients undergoing LT for benign conditions had 5-year survival rates clinically comparable to normal weight recipients. Impact analysis showed that exclusion of high-risk recipients(underweight and morbid obese patients) would not significantly improve the overall survival of the entire cohort of patients requiring LT.

Grey-theory based algorithm for impact assessment of green design

Life cycle assessment (LCA) is an important content of green design;the major phase of LCA is impact assessment. After classifying the impact factors, with grey-system theory, the evaluating grey-groups and their whitening weighing functions are defined;the grey-cluster analysis of each classified impact is performed;based on analyzing results, the calculating method of classified impact index is given. By range of action, the impact classes are grouped to three groups - global impact, regional impact, and local impact;the calculating methods of grouped and overall impact index are presented. Finally, an application example of comparative choice of a category of products - three materials, steel, aluminum and engineering plastics is given.

基于主题模型的论文标准化影响力指标研究——一个新的论文标准化影响力指标GTNI

当前学界关于论文的标准化评价指标多从学科角度分类,忽视论文主题的多样性且每一主题概率不同等问题。文章在CNCI(Category Normalized Citation Impact,学科规范化影响力)指标基础上,结合主题模型、引文分析等方法提出构建可横向比较的普适性指标GTNI(General Topic Normalized Citation Impact,基于主题模型的论文标准化影响力),以提高学术论文评价的科学性。GTNI是对论文每一主题被引进行标准化并综合而获得的指标。通过理论分析、指标构建、实证研究和对比检验,表明GTNI指标在论文影响力评价方面具有较好的效果,且具有应用前景。

基础设施配套工程对生物多样性影响的评价——以翠坪山县级自然保护区为例

通过调查基础设施改造提升项目在翠坪山县级自然保护区的影响评价区域范围的生物多样性现状,评价项目对保护区的景观、生物群落、物种、主要保护对象、生物安全、三江并流世界遗产地和社会因素7个方面的影响程度,计算得出生物多样性影响指数(BI)为50.00,确定改造提升项目对翠坪山县级自然保护区生物多样性的综合影响程度属于中低度影响,并提出相应的保护措施,以期降低建设项目对区域生物多样性的影响。

Experimental Study on the Mechanical Parameters Relating to the Impact Tendency of Coal Sample

Coal burst remains one of the gravest safety risks that will be encountered in mining in the future, because the stress conditions will become more complex as mining depths increase. Various influencing elements exist, and varied geological and mining circumstances might result in diverse coal burst phenomena. The impact propensity of coal has variations as a result of the distinct physical and mechanical qualities of each. To identify the impact propensity of coal and then understand the rules of coal burst occurrence, laboratory tests can be conducted to identify the physical and mechanical parameters affecting coal samples. The mechanical properties, energy absorption, and energy dissipation characteristics of coal samples were examined experimentally in this paper using coal samples that were taken from the mine. On the basis of the evaluation of the impact inclination parameters for four fundamental coal samples, novel impact inclination indicators and the relationship between the fractures in the coal sample and the impact inclination parameters were discussed. The following are the key conclusions: 1) On-site samples of No. 15 coal from the Qi yuan Coal Mine were taken (15 s) and processed in accordance with the guidelines for the coal specimen impact inclination test. The accuracy of the specimen was sufficient for the test. 2) Analysis is done on the mechanical relevance and calculation techniques of the four fundamental coal sample impact tendency characteristics, dynamic failure time (DT), elastic strain energy index (WET), impact energy index (KE), as well as uniaxial compressive strength (RC). 3) Regarding the rock burst danger of rock samples, the potential use of the ratio of pre-peak and post- peak deformation modulus to Kλ and the residual elastic strain energy index CEF as the impact propensity indices of coal samples are discussed. It is possible to utilize two new impact propensity indices to evaluate the impact propensity of coal samples, according to test results that reveal a linear correlation between two new impact inclination indexes and four fundamental impact tendency indexes. 4) The statistical analysis of the crack ratio with the four impact propensity indicators after coal specimen failure, and the correlation among the crack ratio with the indicators, are both done. The findings indicate that the four impact propensity indicators have a linear relationship with the crack ratio of the coal sample surface cracks.

锡林郭勒盟大型露天煤矿区地质环境时空演化评价

内蒙古锡林郭勒盟大型露天煤矿区经过20多年的开发,产生了一系列矿山地质环境问题,矿区地质环境在一定程度上遭到破坏,因此,开展大型露天煤矿区地质环境时空演化评价可为矿区生态地质环境修复提供参考。本文对锡林郭勒盟3个大型矿区进行地质环境时空演化评价。首先通过现场调查,明确了研究区主要的矿山地质环境问题,包括植被覆盖度下降、土地压占(排土场和工业场地)、地形地貌景观破坏(露天采坑)和含水层破坏等4类;其次利用遥感影像定量获取了2000—2020年之间的矿山地质环境问题信息,并建立了矿山地质环境评价指标体系;然后应用层次分析法确定了矿山地质环境评价指标的权重,并通过基于GIS的影响指数模型对矿山地质环境影响进行了评价和区划,探讨了矿山地质环境时空演化规律。研究结果表明:(1)3个大型矿区植被覆盖度下降区域的面积、排土场压占土地面积和露天采坑破坏地形地貌景观面积随时间不断增加;(2)大型矿区采矿对地质环境的影响划分为无影响区、轻微影响区、一般影响区、较强影响区和强烈影响区5个等级分区;(3)3个大型矿区地质环境时空演化规律基本相同,不同影响区的空间分布特征和面积随时间变化的规律不同。

公路转弯段线形指标对混凝土护栏安全性能的影响

公路转弯段的线形设计指标对护栏的安全性能有重要影响。文中基于路侧安全领域广泛使用的有限元软件LS-DYNA,通过模拟和实车试验对比验证模型的有效性,建立货车与混凝土护栏复杂碰撞试验模型,模拟计算得到车辆碰撞护栏的详细动画,作为平曲线路段上护栏安全性能的直观感受,将行车道半径、路面超高、车辆速度作为变量,研究和量化主要线形指标对混凝土护栏安全性能的影响。结果表明:道路半径接近与设计速度对应的极限最小半径时,车辆的翻滚角增大,车辆易碰撞护栏发生侧翻;行车道路面超高6%为混凝土护栏安全性能的临界点,采用大于6%的超高会使车辆沿护栏迎撞面爬坡跃升的高度增加,车辆更容易发生侧翻,设计时应避免大超高(6%以上)和小半径极值的组合;在曲线路段,碰撞速度对护栏安全性能的影响明显,整体式货车车速达90 km/h后,发生侧翻的风险明显增加。文中研究成果可为道路曲线路段路侧的线形安全设计提供理论基础。

《宁波职业技术学院学报》2018—2023年主要计量指标分析及发展建议

运用文献计量内容分析法,对《宁波职业技术学院学报》2018—2023年的载文基本情况、出版时滞、栏目设置、基金论文、核心作者群、影响力指标数据等进行统计分析,发现学报存在部分问题,并提出有针对性地推介与宣传、把控出版时滞、优化栏目设置、培养核心作者群、强化向名家约稿等建议,以促进《宁波职业技术学院学报》的发展。

考虑双维波动性的地铁冲击负荷网储协同平抑策略

地铁列车频繁启停使其牵引负荷出现短时间大幅度的冲击,容易导致变压器绝缘加速老化、引发主变过载风险。针对这一问题,本文提出一种协同网储的地铁负荷冲击优化策略。首先,基于地铁负荷时序特性剖析冲击性负荷形成机理,建立考虑功率曲线特征的双维波动性指标,定量描述冲击程度。其次,分别以系统经济性最优与负荷冲击最小为上下层目标,建立网架拓扑与储能装置协调控制的双层优化模型,求解最优开关变动及储能调度策略。最后,以上海某地铁线路实际供电负荷为例,结合多场景进行验证分析,结果表明所提方法能有效平抑冲击性负荷,实现供电可靠性与经济性的提升。

考虑节点中断风险的弹性供应链设计方法

供应链全球化发展为企业带来广阔前景,但庞大的供应链体系也造成供应链中断风险激增,为企业带来了巨大潜在风险。然而,由于供应链中断风险难以预知,针对中断的弹性供应链优化设计方法还远不成熟。在此背景下,建立了一种新颖的弹性供应链设计优化方法,旨在增强供应链抵御中断的能力。提出并定义了节点中断风险评价指标(NDII),以反映节点中断对供应链的影响程度。定义风险系数(RW)以表征供应链风险程度,避免了对风险场景及其概率分布的预测,同时体现企业对供应链弹性的重视程度。基于鲁棒优化(RO)方法,建立了对高风险节点惩罚的NDII-RO优化方法,并应用于广东省生物燃料供应链优化设计。优化结果表明该方法可实现抵御中断风险的弹性供应链设计。

脑电双频指数监测下的浅镇静技术在20例牙科焦虑症患者下颌阻生齿拔除中的应用

目的:探讨浅镇静技术在焦虑患者阻生牙拔除术中的应用。方法:对20例下颌阻生牙焦虑患者行丙泊酚静脉输入,在患者脑电双频指数(bispectral index,BIS)达到80~85时拔除阻生牙,术中监测患者心率(heart rate,HR)、平均动脉压(mean arterial pressure,MAP)、呼吸频率及血氧饱和度等,术后指导患者记录视觉模拟评分法(visual analogue scale,VAS)评分及询问患者顺行遗忘情况,采用SPSS 20.0软件包对数据进行数据统计,配对t检验比较术中生理指标与入室时的差异性,采用描述性分析法分析患者术中疼痛情况。结果:所有患者均顺利完成手术,未出现明显不良反应,术中HR、MAP、呼吸频率及血氧饱和度均未出现异常,患者术后VAS评分为1~3分,对手术开始、黏膜切开及牙钻声音顺行遗忘,即焦虑得到缓解。结论:针对牙科焦虑症患者下颌阻生牙的拔除,丙泊酚静脉浅镇静技术(BIS=80~85)即可达到较为满意的效果,减轻患者焦虑,提高舒适度。

水利工程社会影响后评价指标体系构建及应用

水利工程的建设涉及范围广泛,会对当地产生一定社会方面的影响,目前尚无统一的规定和系统的方法体系评价这些影响及指标的选择与评判。为此,结合现阶段国家水利工程建设发展目标与规划要求,从居民生活环境、工程社会效益、地区和谐性三个方面构建了包含3个一级指标、13个二级指标和29个三级指标的水利工程社会影响后评价指标体系,阐述了各指标含义和评价标准,考虑到评价过程的模糊随机性,运用变权函数进行权重的修正,并构建等级云模型分析评价结果的不确定性。工程实例应用结果表明,水库建设后对当地的社会影响等级为中等,建设区水环境、资源开采利用、工程效益开发是区域后期建设管理的重点。

我国文献计量学发展历程及其在科技期刊评价中的应用

文献计量学作为期刊评价的一个主要工具,在优化期刊质量、促进期刊良性发展中发挥着重要作用。对我国文献计量学的发展历程、文献计量学在期刊评价中的应用及存在的问题进行综述,在此基础上提出相应举措,指出今后仍应不断完善期刊评价指标和体系的建设。

口腔种植修复治疗牙列缺损伴牙周炎对牙周指数的影响

目的观察口腔种植修复治疗牙列缺损伴牙周炎的效果并分析对牙周指数的影响。方法回顾性分析2022年1月至2024年1月合肥市口腔医院收治的120例牙列缺损伴牙周炎患者的临床资料,按照患者采取的不同治疗方法将其分为研究组(60例)与对照组(60例)。对照组患者采用传统修复治疗方法,研究组患者采用口腔种植修复治疗方法。比较两组患者治疗前后的牙周指数、炎症因子水平、边缘骨吸收量、基质金属蛋白酶(MMP)水平、种植体存留率。结果研究组种植体存留率高于对照组,差异有统计学意义(P<0.05)。研究组治疗后菌斑指数(PLI)、牙袋深度(PD)、龈沟出血指数(SBI)、MMPs水平、C反应蛋白(CRP)、白介素-1β(IL-1β)、白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)高于对照组,差异有统计学意义(P<0.05);两组的边缘骨吸收量(MBL)比较,差异无统计学意义(P>0.05)。结论口腔种植修复治疗牙列缺损效果较为显著,种植体留存率较高,且不会增加牙槽骨吸收,但会刺激机体,引发炎症反应,对牙周炎也无明显改善效果。