中国安全科学学报最新文献_第7页

Study on performance of gas-liquid extinguishing agent for lithium iron phosphate battery modules 磷酸铁锂电池组件气液灭火剂性能研究

中国安全科学学报 Pub Date : 2020-03-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.03.009

H. Qiang, Tao Fengbo, Liu Yang, Sun Lei, Niu Zhiyuan, Jin Yang

引用次数: 0

Effect of SDBS of different mass fractions on coal's wettability by molecular simulation 不同质量分数的SDBS对煤润湿性的影响

中国安全科学学报 Pub Date : 2020-03-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.03.004

Li Shugang, Guo Doudou, Baixue Yang, Yan Min, Lin Haifei, Shi Yu

{"title":"Effect of SDBS of different mass fractions on coal's wettability by molecular simulation","authors":"Li Shugang, Guo Doudou, Baixue Yang, Yan Min, Lin Haifei, Shi Yu","doi":"10.16265/J.CNKI.ISSN1003-3033.2020.03.004","DOIUrl":"https://doi.org/10.16265/J.CNKI.ISSN1003-3033.2020.03.004","url":null,"abstract":"In order to study effects of surfactant on coal ' s wettabilityꎬ with SDBS taken as research objectꎬ Wiser coal chemical structure model and Material Studio molecular simulation software were used to establish a system where SDBS of six different mass fractions coexisted with water and coal. Thenꎬ the system' s adsorption configurationꎬ energy changesꎬ relative concentration distribution as well as mean square displacement (MSD) of water molecules were analyzed. The results show that hydrophobic alkyl chains of SDBS molecules are adsorbed on coal surfaceꎬ and hydrophilic group with benzene ring warps to water phaseꎬ which reduces liquid ̄solid interfacial tension of water and coal. As mass fraction of SDBS 中国安全科学学报 China Safety Science Journal 第30卷 2020年 increasesꎬ the system's total energy decreasesꎬ but interaction energy between SDBS and coal increasesꎬ indicating that adsorption between molecules is more stable and wettability is enhanced. Spatial distribution difference of hydrophobic alkyl chains of SDBS molecules is one of the main factors affecting wettability. Diffusion coefficient of water molecules increases along with the growth of SDBS mass fractionꎬ which has a significant effect on wettability of coal.","PeriodicalId":9976,"journal":{"name":"中国安全科学学报","volume":"17 1","pages":"21"},"PeriodicalIF":0.0,"publicationDate":"2020-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81632466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Health risk assessment caused by productive dust in coal-fired power plants 燃煤电厂生产粉尘的健康风险评价

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.024

XU Surui

引用次数: 1

Risk analysis of gas storage separator based on RBI technology 基于RBI技术的储气分离器风险分析

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.004

Wang Jinjiang, Wang Shuhui, Z. Xing, Zhang Laibin

引用次数: 0

Study on influence of groove curvature on movement characteristics of slurry in tailing dam collapse 尾矿库溃坝时槽曲率对浆体运动特性的影响研究

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.009

Liu Kehui, Wu Dongming, C. Hai, Jing Xiaofei, Li Kaifang, Kang Qinrong

引用次数: 0

Limitation of Barrell formula in calculating gas diffusion coefficient of coal 巴瑞尔公式计算煤瓦斯扩散系数的局限性

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.012

Jiang Hongfu, An Fenghua, Peng Xinshan

引用次数: 1

Research on risk control decision method for deepwater drilling blowout 深水钻井井喷风险控制决策方法研究

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.018

Zhu Jingyu, Chen Guo-ming, L. Han, Meng Xiangkun, Zhi Chenxiao, Zhou Lichen

引用次数: 0

Study on voice feature change of radiotelephony communication under fatigue state 疲劳状态下无线电话通信语音特征变化研究

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.025

Sun He, J. Qi, Liu Chang

{"title":"Study on voice feature change of radiotelephony communication under fatigue state","authors":"Sun He, J. Qi, Liu Chang","doi":"10.16265/J.CNKI.ISSN1003-3033.2020.02.025","DOIUrl":"https://doi.org/10.16265/J.CNKI.ISSN1003-3033.2020.02.025","url":null,"abstract":"In order to prevent air traffic control incidents, fatigue warning mechanism of controllers is studied by using voice data of radiotelephony communication and PVT method. Firstly, effective control instruction information was intercepted and redefined speed speed, tone and other features were extracted from audio files of radiotelephony communication during training process of control simulator. Then, controllers' response capability before and after each training was tested by using PVT method, and speech features and PVT test results were compared. Finally, change trend of speech features in each time period was observed with box chart statistics, absolute and relative speech feature intervals under fatigue state were analyzed by k-means ++ algorithm, and safety red line was proposed based on observation on change process of controllers ' fatigue. The research shows that the proposed method can provide early fatigue warning and therefore prevent incidents and improve safety management by effectively monitoring 第 2 期孙禾等: 疲劳状态下陆空通话语音特征变化研究 controllers' work state through their voice features.","PeriodicalId":9976,"journal":{"name":"中国安全科学学报","volume":"10 1","pages":"158"},"PeriodicalIF":0.0,"publicationDate":"2020-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82280003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pore structure and fractal characteristics of outburst coal in northern Guizhou 黔北突出煤孔隙结构及分形特征

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.011

Chen Liuyu, Liang Xijian, Shen Zhonghui, B. Juan, Liu Yu, Xu Shiqing

{"title":"Pore structure and fractal characteristics of outburst coal in northern Guizhou","authors":"Chen Liuyu, Liang Xijian, Shen Zhonghui, B. Juan, Liu Yu, Xu Shiqing","doi":"10.16265/J.CNKI.ISSN1003-3033.2020.02.011","DOIUrl":"https://doi.org/10.16265/J.CNKI.ISSN1003-3033.2020.02.011","url":null,"abstract":"In order to reveal effects of outburst coal ' s pore structure on gas adsorption capacity and emission performance, low-temperature liquid nitrogen adsorption experiments of coal samples from three typical mines in northern Guizhou were carried out. Pore structure parameters were studied, including specific surface area, pore volume, average pore diameter, most probable pore diameter and fractal dimension, and gas diffusion pattern in pores was analyzed. Finally, impacts of pore characteristic parameters on adsorption capacity and emission performance was discussed. The results show that outburst coal's pores are relatively developed with pore permeability, and gas in pores mainly emits in transitional 第 2 期陈刘瑜等: 贵州北部突出煤的孔隙结构及分形特征研究 and Fick diffusion types. Compared with temperature, pressure and pore diameter have a more significant effect on Knudsen number. It is also found that pore characteristic parameters maintain a good linear relation with initial diffusion velocity of gas, and fractal characteristics of coal pore are evident. Adsorption capacity are quadratic function increasing while initial diffusion velocity of gas increases linearly with fractal dimension.","PeriodicalId":9976,"journal":{"name":"中国安全科学学报","volume":"27 1","pages":"66"},"PeriodicalIF":0.0,"publicationDate":"2020-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79201937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Study on evacuation ability of airport terminals to violent terrorist attacks 机场航站楼应对暴力恐怖袭击的疏散能力研究

中国安全科学学报 Pub Date : 2020-02-28 DOI: 10.16265/J.CNKI.ISSN1003-3033.2020.02.014

Chen Yizhou, Zhang Wudi, Yan Feng, Li Qi

{"title":"Study on evacuation ability of airport terminals to violent terrorist attacks","authors":"Chen Yizhou, Zhang Wudi, Yan Feng, Li Qi","doi":"10.16265/J.CNKI.ISSN1003-3033.2020.02.014","DOIUrl":"https://doi.org/10.16265/J.CNKI.ISSN1003-3033.2020.02.014","url":null,"abstract":"In order to address emergency evacuation of personnel in airport terminals in the event of violent terrorist attacks, relationship between various influencing factors was analyzed by using ISM method and decision-making trial and evaluation laboratory ( DEMATEL). And key factors affecting personnel evacuation ability were screened out. Then, classification standards of warning levels for emergency evacuation were put forward according to relevant standards, regulations, severity and controllability of attacks and emergency evacuation area. The results show that building structure, safety facilities, violent terrorist attacks, age, emergency preparedness, evacuation channel, environment familiarity and on-site status have great influence on other factors of evacuation capacity. Those that are greatly affected by other factors are mainly speed, evacuation guidance, emergency rescue, crowd's angle, evacuation distance, safety facilities, violent terrorist attacks and evacuation channels. The key influencing factors are 第 2 期陈一洲等: 暴恐事件下机场航站楼疏散能力研究 evacuation guidance, speed, emergency rescue, safety facilities, violent and terrorist attacks, building structure, crowd's angle and evacuation distance. And attribution causes that affect evacuation ability rank in order of importance as building structure, age, familiarity with environment, safety facilities, site condition, gender, violent terrorist attacks and emergency preparedness.","PeriodicalId":9976,"journal":{"name":"中国安全科学学报","volume":"7 1","pages":"86"},"PeriodicalIF":0.0,"publicationDate":"2020-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78993278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0