期刊：
2017 3RD INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND MATERIAL APPLICATION (ESMA2017), VOLS 1-4,2018年108 ISSN：1755-1307
通讯作者：
Liu, Yong
作者机构：
[Zhao, Guodong; Zhang, Yan; Yang, Zhu; Liu, Yong; Lou, Yalong] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Zhao, Guodong; Zhang, Yan; Yang, Zhu; Liu, Yong; Peng, Guowen; Lou, Yalong] Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.;[Peng, Guowen] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Liu, Yong] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Liu, Yong] Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.
会议名称：
3rd International Conference on Environmental Science and Material Application (ESMA)
会议时间：
NOV 25-26, 2017
会议地点：
Chongqing, PEOPLES R CHINA
会议主办单位：
[Lou, Yalong;Liu, Yong;Zhao, Guodong;Zhang, Yan;Yang, Zhu] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.^[Lou, Yalong;Liu, Yong;Peng, Guowen;Zhao, Guodong;Zhang, Yan;Yang, Zhu] Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.^[Peng, Guowen] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
A year-long monitoring of gamma radiation effective dose rate and radon concentration had been done in the reservoir area of one uranium tailings pond in Hunan province (The monitoring area included indoor and outdoor area of residential buildings and workshops, tailings dam slope). Afterwards, the annual effective radiation dose of the people in that radiation environment had been calculated based on the results of monitoring, as well as a radiation risk assessment. According to the assessment, gamma radiation effective dose rate and radon concentration in the monitoring area were low, and the annual effective radiation dose was far below the international standard (30mSv), which showed that the radiation would not put the people's health at risk. However, the annual effective radiation dose of gamma was far above that of radon in the area of uranium tailings pond; therefore, it's advisable to take quarantine measures in in the area of uranium tailings pond to keep the surrounding residents away from unnecessary ionizing radiation.
摘要：
The water-based Fe3O4 magnetic fluids were prepared by chemical co-precipitation of Fe2+ and Fe3+ using NaOH to control the pH, different surfactants were added to modify the magnetic particles. The stability, viscosity of the fluids and the magnetic property of magnetic particles were evaluated. The influences of different factors, such as reacting time, temperature, stirring speed, pH value, supersonic dispersing time, molar ratio of Fe2+/Fe3+, and surfactant, on properties of magnetic fluids were discussed. The experimental results showed that the optimal conditions were: molar ratio of Fe2+ and Fe3+ 1:1.5, pH value 9.0, stirring speed 1500 r.min(-1), reacting time 10 minutes, temperature 55 degrees C, supersonic dispersing time 30 minutes, suitable surfactant Tween 80.
摘要：
The length of the pre-splitting crack is an important parameter in underground mine deep-hole blasting, and experience and engineering analogy methods are used commonly, but they seldom have scientific and theoretical basis. In this paper, the mature numerical analysis software - ANSYS/LS-DYNA was adopted, the different lengths of pre-splitting crack were simulated. In the filling body, the corresponding maximum blasting vibration velocity and stress are obtained by numerical simulation when the maximum initiation section blasted. The corresponding regression formulas are obtained by using the least square method, and the optimal length of the pre-splitting crack is 12 m through the calculation. Proved by practice, this method to get the length of the pre-splitting crack is scientific and effective, can be extended in other similar blasting engineering.
摘要：
The farmland soil and creek sediments in different depth in the mining area were sampled, and their content of U-238,Ra-226 and Th-232 were determined by gamma spectrometric method to assess the impact of the soil environment by single index method. The result shows Th-232 was not influenced on soil in survey area. Ra-226 influenced more seriously than U-238 on farmland soil, meanwhile, the farmland soil at downstream of tailings dam was contaminated seriously by radionuclides than at other places. For creak sediments,adit water resulted in more serious pollution by U-238 than Ra-226, however, tailings erosion resulted in more serious pollution by Ra-226 than U-238.
摘要：
Total suspended particle (TSP) and fine particulate matter (PM2.5) samples were collected continuously using an atmospheric particulate matter sampler at sampling points in a tailings reservoir in the south from October 28 to November 3, 2013. The mass concentrations of particulate matter in the air, the contents, and morphological analysis of heavy metal elements (Pb, Cd, U, Cu) were also studied. The results indicate that the air particulate matter concentrations exceed the mass concentration limits of national Grade II ambient air quality standard (GB3095-2012); The heavy metals content in air particulate matter from high to low order is: Pb > Cu > U > Cd and heavy metals are easier to be concentrated on fine particulate matter (PM2.5); heavy metal elements (Pb, Cd, Cu) exist mainly in the exchangeable morphology, especially the element Cd.
关键词：
Bridge erecting machine tipping;Fault tree analysis;Minimal path set;Structural importance;Countermeasure
摘要：
Bridge erecting machine has been widely used nowadays with its efficiency, while just as a coin has two sides, it also brings problem. If a rollover happens, it will lead to equipment damage, casualties or other disastrous accidents. How could technicians take measures to prevent accidents as efficiently as possible? Question remains unsaved. Based on the analysis of “10.26” bridge erecting machine tipping accident, this paper gives a qualitative analysis on the accident by using fault tree analysis. Firstly, fault tree diagram for the bridge erecting machine tipping, namely the causal and generalization relation between events is formulated. All the basic events that influence the way and the degree of the accident are identified, and these can be ascribed to the following three aspects: manufacturing defect, personnel operating error and management oversight. In terms of management oversight, the responsibility of construction unit, safety supervision department and supervision unit are of great importance. Secondly, combining the minimal path set with the structure importance, we conduct a qualitative analysis on the personnel casualties resulted from the accident, thus seek critical approaches to accident prevention. Finally corresponding safety control measures are put forward. It is noteworthy that the approach can be applied in the similar accidents entirely.
摘要：
The experimental treatment of emulsifying wastewater containing fluo rescent permeating agent is conducted using demulsification, flocculation, sedimentation and Fenton processes. The experimental results show that, under the appropriate conditions, the COD, oil and chromaticity can be removed efficiently. The pH, COD, oil and chromaticity of the outwater can reach the national standards.
作者机构：
[Ye, Yong-jun; Ding, De-xin] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang, Hunan, Peoples R China.;[Dai, Xin-tao; Ye, Yong-jun] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.
会议名称：
第二届能源、环境与材料科学国际学术会议(EEMS 2016)
会议时间：
2016-07-29
会议地点：
新加坡
会议主办单位：
[Ye, Yong-jun;Ding, De-xin] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang, Hunan, Peoples R China.^[Ye, Yong-jun;Dai, Xin-tao] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.
摘要：
In underground uranium mines of China, there are many chamber stopes that can generate and accumulate radon and its daughters, the concentrations of which are about 3-5 times higher than other countries. Therefore, it is very urgent to improve the level of radiation protection of the chamber stopes in China. Ventilation is one of the effective ways to control the concentrations of radon and its daughters. First, this study established the mathematical models that calculated the concentration of radon and its daughters in the chamber stope for designing and optimizing ventilation systems by using the theories of turbulent mass transfer and radioactive decay. Second, the models were used to analyze radon and its daughters' concentrations with the change of airflow rate, air volume, and radon generation rate in chamber stope. Third, the ventilation conditions of chamber stopes of four typical uranium mines in China were investigated and the models to calculate radon and its daughters' concentrations were used to verify its accuracy. Finally, the difference is analyzed between the measured values and the theoretical values of the total Potential Alpha Energy Concentration (PAEC) of radon daughters and a linear correction formula was established.
会议主办单位：
[Zhang, Y. Y.;Lv, J. W.;Song, Y.;Dong, X. J.;Fang, Q.] Univ South China, Sch Environm Protect & Safety Engn, Hengyang City 421001, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
In order to reveal the adsorption mechanism of the ferric chloride modified humic acid on uranium, the influence of pH value and contact time of adsorption on uranium was studied through a series of batch experiments. Meanwhile, the adsorption kinetics was analyzed with pseudo-first order kinetic model and pseudo-second order kinetic model. The results show that adsorption is affected by the pH value of the solution and by contract time, and the best condition for adsorption on uranium is at pH=5 and the adsorption equilibrium time is about 80 min. Kinetics of HA-Fe adsorption on uranium accords with pseudo-second order kinetic model. The adsorption is mainly chemical adsorption, and complexes were produced by the reaction between uranium ions and the functional groups on the surface of HA-Fe, which can provide reference for further study of humic acid effecting on the migration of U(VI) in soil.
摘要：
Dynamic shear modulus and damping ratio are two main parameters for describing the dynamic performance of aeolian soils. This paper presents the influence of the confining pressure, the consolidation ratio and the vibration frequency on the dynamic shear modulus and the damping ratio of aeolian soils with a series of dynamic triaxial tests. Experimental results show that the dynamic shear modulus of aeolian soils increases with the confining pressure and the consolidation ratio, while the damping ratio decreasing with them; both of the dynamic shear modulus and the consolidation ratio increases with the vibration frequency, but the influence is less than that of the confining pressure and the consolidation ratio.
关键词：
Locomotive runaway accident;Fault tree analysis;Cause analysis;Safety countermeasure
摘要：
August 12, 2011, a locomotive runaway has happened on the local railway named Xihe railway of a certain city, it led to a death of an older person and serious damage of four automobiles. The causing factors of the runaway accident have been comprehensively analyzed, which respectively include four aspects: human, machine, environment and management. By using the principle of fault tree analysis (FTA), the locomotive runaway accident fault tree has been set up after the accident investigation. Based on the corresponding formula, the authors have calculated the structure importance coefficient of each basic event. By analyzing the causation of the events, the minimal path sets have been obtained, and the order of the structure importance has also been obtained. Through the above analysis, the reasons of this accident have been analyzed systematically and the corresponding safety countermeasures have been proposed. The thesis can provide reference for prevention of similar accidents. (C) 2012 Authors. Published by Elsevier Ltd.
摘要：
Through the analysis of characteristics and laws of the radiant hazards in uranium waste rock and tailings to the environment, decommissioning the present situation of uranium mining and milling facilities in our country, and combining with the main research work, this article makes a series of management strategies.
作者：
Ye, Y. J.*;Liang, T.;Ding, D. X.;Lei, B.;Su, H.;Zhang, Y. F.
期刊：
IOP Conference Series: Earth and Environmental Science,2017年73(1) ISSN：1755-1307
通讯作者：
Ye, Y. J.
作者机构：
[Ye, Y. J.; Ding, D. X.] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.;[Ye, Y. J.; Liang, T.; Zhang, Y. F.; Su, H.; Lei, B.] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Ye, Y. J.] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.;[Ye, Y. J.] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
International Conference on Sustainable Energy Engineering (ICSEE)
会议时间：
JUN 12-14, 2017
会议地点：
Perth, AUSTRALIA
会议主办单位：
[Ye, Y. J.;Ding, D. X.] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.^[Ye, Y. J.;Liang, T.;Lei, B.;Su, H.;Zhang, Y. F.] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
A calculation model for radon concentration in shrinkage mining stopes under various ventilation conditions was established in this study. The model accounts for the influence of permeability and area of the blasted ore heap, ventilation air quantity, and airflow direction on radon concentration in a confined workspace; these factors work together to allow the engineer to optimize the ventilation design. The feasibility and effectiveness of the model was verified by applying it to mines with elevated radon radiation exposure. The model was found to accurately changes in radon concentration according to the array of influence factors in underground uranium mines.
作者：
Ye, Yongjun*;Ding, Dexin;Li, Feng;Wang, Shuyun
作者机构：
[Ding, Dexin; Ye, Yongjun; Li, Feng] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang, Hunan, Peoples R China.;[Ye, Yongjun; Wang, Shuyun; Li, Feng] Univ S China, Sch Environm protect & safety Engn, Hunan, Peoples R China.
会议名称：
2nd International Conference on Energy, Environment and Sustainable Development (EESD 2012)
会议时间：
OCT 12-14, 2012
会议地点：
Jilin, PEOPLES R CHINA
会议主办单位：
[Ye, Yongjun;Ding, Dexin;Li, Feng] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang, Hunan, Peoples R China.^[Ye, Yongjun;Li, Feng;Wang, Shuyun] Univ S China, Sch Environm protect & safety Engn, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
radiation hazard;fault tree analysis;uranium mine;countermeasure
摘要：
Workers in underground uranium mines work chronically in the opening radiation environment, the radiation hazards they suffered has attracted public's attention. So some effective measures must be carried out to control worker's received radiation dose. Fault tree analysis is a deductive system safety analysis method, which can offer decision basis for accident prevention and safety management. Based on the above two advantages, firstly, the paper analyzes the radiation hazards in underground uranium mines and their influencing factors. Then, the fault tree of radiation hazards is established in underground uranium mines, five groups of minimal path sets and the structure importance degree of each basic event are obtained. Finally, according to the results of fault tree analysis, some prevention countermeasures are putted forward to prevent radiation hazards.
作者机构：
[Tan, Yanpeng; Su, Qin] Univ South China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.;[Lv, Junwen; Zhang, Xiaowen; Tang, Dongshan] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.
会议名称：
2nd International Conference on Energy and Environmental Protection (ICEEP 2013)
会议时间：
APR 19-21, 2013
会议地点：
Guilin, PEOPLES R CHINA
会议主办单位：
[Tan, Yanpeng;Su, Qin] Univ South China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.^[Zhang, Xiaowen;Lv, Junwen;Tang, Dongshan] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
uranium;iron hydroxide colloids;adsorption
摘要：
The presence of the colloid will affect uranium heap leaching. The objective of this study was the examination of the ability of colloid retardation to uranium by irons hydroxide colloids simulated heap leaching process. Batch studies have been carried by observing the effects of pH, contact time, uranium concentration. Iron hydroxide colloids can exist stably at pH 1.5-3.0. The size of the colloid samples is between 20 nm and 1000 nm. The sorption equilibrium was attained at 24 h. The load uranium capacity on iron hydroxide colloids are between 2.43x10(-3) and 3.84x10(-3) mmol/mol. The colloid morphology of before and after loaded uranium were identified using S-4800 scanning electron microscopy (SEM/EDS). The load uranium capacity on iron hydroxide colloids is least at pH=2, it implies that the appropriate pH of uranium heap leach is 2.0 on the point of retardation of colloid to uranium migration.
作者机构：
[Liu, Dong] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.;[Zhao, Yurong] Univ South China, Sch Nucl Resource & Fuel Engn, Hengyang, Hunan, Peoples R China.
会议名称：
10th Conference on Man-Machine-Environment System Engineering
会议时间：
OCT 22-26, 2010
会议地点：
Sanya, PEOPLES R CHINA
会议主办单位：
[Liu, Dong] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.^[Zhao, Yurong] Univ South China, Sch Nucl Resource & Fuel Engn, Hengyang, Hunan, Peoples R China.
关键词：
man-machine-environment system engineering;university of south China;old desks and chairs;human-machine parameters
摘要：
This paper is based on basic principles and the theories of Man-Machine-Environment System Engineering, concerning the present conditions of old desks and chairs, I measured some human-machine parameters of some old desks and chairs in the second teaching building of University of South China, analyzed the measurement data, and reached some deficiencies of old desks and chairs. Based on these deficiencies with the analysis of the proposed improvement measures, according to human-computer-related parameters for the entire classroom standards for a reasonable layout, then design desks and chairs can meet the parameters of the plane body furniture.
