作者机构：
[谢水波; 肖拾红; Zeng, Tao-Tao; 刘金香; 陈华柏; 凌辉; 王劲松] Hunan Provincial Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, China
通讯机构：
Hunan Provincial Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, China
期刊：
Applied Mechanics and Materials,2014年662:141-146 ISSN：1660-9336
通讯作者：
Fan, Shuai
作者机构：
[Wang, Jingsong; Fan, Shuai] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.;[Guo, Qingwei] MEP, South China Inst Environm Sci, Guangzhou, Peoples R China.;[Sun, Ping; Zhang, Weiming] Nanjing Univ, Sch Environm, Nanjing 210046, Peoples R China.
通讯机构：
[Fan, Shuai] U;Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
会议名称：
International Conference on Mechanical Engineering, Civil Engineering and Material Engineering
会议时间：
20140927-28
会议地点：
Wuhan
会议主办单位：
[Fan, Shuai;Wang, Jingsong] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.^[Guo, Qingwei] MEP, South China Inst Environm Sci, Guangzhou, Peoples R China.^[Zhang, Weiming;Sun, Ping] Nanjing Univ, Sch Environm, Nanjing 210046, Peoples R China.
会议论文集名称：
Mechanical engineering, materials and information technology II: Selected, peer reviewed papers from the 2014 2nd International Conference on Mechanical Engineering, Civil Engineering andaterial Engineering (MECEM 2014), September 27-28, 2014, Wuhan, China
摘要：
In order to investigate the mechanism of extracellular polymeric substances (EPS) influencing sludge characteristics, variations of extractable EPS from municipal sewage sludge by acid/alkaline pretreatment and gamma-ray irradiation were studied. The changes in constituents of EPS were analyzed by UV-vis spectra and SEM images. The effects of alkaline pretreatment and gamma-ray irradiation on the functional groups in EPS were investigated by Fourier transform infrared (FTIR) spectrometer. Results showed that the extractable EPS increased clearly with increasing irradiation dose from 0 to 15 kGy. UV-vis spectra indicated that a new absorption band from 240 nm to 300 nm existed in all irradiated samples, apart from acid condition. The results of FTIR spectroscopic analysis indicated that, irradiation influenced major functional groups in EPS, such as protein and polysaccharide, and these effects were clearer under alkaline condition. SEM images provided that after alkaline hydrolysis, gamma-ray irradiation was more effective in resulting in the sludge flocs and cells broken, compared with acid pretreatment (pH 2.50). (c) 2013 Published by Elsevier Ltd.
作者：
Gu, Wei Li*;Wang, Han Qing;Kou, Guang Xiao;Cao, Qiao Ying
期刊：
Computer Modelling and New Technologies,2014年18(9):438-444 ISSN：1407-5806
通讯作者：
Gu, Wei Li
作者机构：
[Gu, Wei Li] School of Energy and Power Engineering, Central South University, Changsha, China;[Wang, Han Qing; Kou, Guang Xiao] Hunan University of Technology, Zhuzhou, China;[Gu, Wei Li; Cao, Qiao Ying] Department of Urban Construction, University of South China, Hengyang, China
摘要：
According to the problems as low efficiency, aging of organic heat transfer material and frequent accidents in the operation of the coil organic heat transfer material heater, with the finite time thermodynamics, this paper studies the actual processes including combustion process, flow and heat transfer process, considers the irreversible factors as combustion condition, the fuel characteristics, flow resistance and heat transfer temperature difference, derives the calculation formula of energy loss for three processes and to determine the minimum energy loss. Based on this, this paper proposes energy-saving optimization strategy and gives examples, the results accord with the analysis. In design and operation, the outlet flue gas temperature of furnace, flue gas temperature and flow velocity of hot oil are important.
期刊：
BioTechnology: An Indian Journal,2014年10(6):1640-1643 ISSN：0974-7435
通讯作者：
Xie, Shui-Bo
作者机构：
[Xie, Shui-Bo; Yang, Rui-Li; Zeng, Tao-Tao; Rong, Li-Shan] Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, China;[Wu, Wei-Lin] Hunan Sheng Long Project Management Ltd, Zhuzhou, China;[Xie, Shui-Bo] Key Discipline Lab. for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构：
[Xie, S.-B.] H;Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South ChinaChina
关键词：
Experiment;Gray relational analysis;Pseudomonas aeruginosa loaded by nano-Fe3O4 (NFPA);Uranium
摘要：
According to the improved 3 scales (0, 1, 2) Analytic Hierarchy Process (E-AHP) and Extenics theory, an evaluation model is built to evaluate the slope stability. The model takes into account nine indexes that affect the slope stability. The classical matter element and extensional matter elemen are established by collectting actural data. And combined with the specific example, this model accurately calculated the stability state of the slope. The results shown that it not only can take advantage of Extenics Matter-Element theory and the correlation function to study the relationship between index and slope stability, but also can avoid the shortcomings of the traditional AHP judgment matrix inconsistent. It is a new model to evaluate the slope stability.
作者机构：
[谢东; 叶勇军; 刘泽华; 熊军] School of Urban Construction, University of South China, Hengyang 421001, China;[王汉青] School of Civil Engineering, University of Hunan Technology, Zhuzhou 412007, China;[谢东; 王汉青] School of Energy Science and Engineering, Central South University, Changsha 410083, China
通讯机构：
School of Urban Construction, University of South China, China
摘要：
Waste management of several typical construction projects was investigated in Hunan area; the project differences were analyzed on the waste amount and components, the increasing environmental impact of construction wastes was discussed. The disposal advices were given on the aspects of reducing, resources and eco-friendship of construction wastes. The environmental impact of construction wastes is permanent and accumulated, and the components are increasing diversified, so, the secondary contaminations are also increasing severe.
作者机构：
[柯国军; 宋百姓] School of Urban Construction, University of South China, Hengyang 421001, China;[柏纪平] Faculty of Advanced Technology, University of Glamorgan, Pontypridd CF37 1 DL, United Kingdom
通讯机构：
School of Urban Construction, University of South China, China
摘要：
This paper carries out dynamic tests of self-compacting prestressed concrete beams, 10 simply-supported and 5 free, then simulates modal analyses. It shows that, via comprehensive analyses of the first four natural frequencies and modes, the simple support can not achieve the ideal confinement effect for dynamic tests. Especially the tested high frequencies and modes are obviously different from corresponding theoretical values, instead the same as elastic-supported beams. The support plays the role of elastic one. The conclusions will provide meaningful references to further researches on prestressed concrete beams such as improving the accuracy of tests, dynamic analyses and theoretical frequency calculation.
期刊：
Applied Mechanics and Materials,2013年401-403:1044-1047 ISSN：1660-9336
通讯作者：
Xie, Dong
作者机构：
[Xie, Dong; Mo, Shunquan] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
通讯机构：
[Xie, Dong] U;Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
会议名称：
International Conference on Frontiers of Manufacturing Science and Measuring Technology
会议时间：
2013-07-30
会议地点：
LiJiang(CN)
会议主办单位：
[Xie, Dong;Mo, Shunquan] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
会议论文集名称：
Frontiers of manufacturing science and measuring technology III: Selected, peer reviewed papers from the 2013 3rd International Conference on Frontiers of Manufacturing Science and Measuring Technology (ICFMM 2013), July 30-31, 2013, LiJiang, China
摘要：
This paper firstly presents the operation principle of individually ventilated cages (IVC) system. Measurements on micro-environment of IVC system in laboratory animal room at University of South China are conducted to attain the internal environment parameters (Temperature, humidity, air velocity, air cleanliness and noise). Research results show that internal micro-environment parameters basically meet national standards about the barrier environment, but internal air distribution is uneven. In IVC system, air velocities in the edge side are higher than in the middle side, and the maximum air velocity is about 10% larger than the minimum value. Temperature in internal micro-environment depends on indoor temperatures which IVC system located in, and there has a close correlation between air velocity and temperatures. Internal environment evaluation could provide the first-hand research materials for guiding the breeding and management of laboratory animal.
作者机构：
[颜智勇; 张政科] Department of Environmental Engineering, Hunan Agricultural University, Changsha 410128, China;[岳衡] Municipal Engineering, University of South China, Hengyang 412001, China;[龙焰] Department of Environmental Engineering, Jinan University, Guangzhou 510632, China;[虢清伟; 许振成] South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China
通讯机构：
Department of Environmental Engineering, Hunan Agricultural University, China
作者机构：
[刘金香; 刘迎九; 王劲松; 段毅; 谢水波] Key Laboratory of Pollution Control and Resources Reuse Technology of Hunan Province, University of South China, Hengyang 421001, Hunan, China;[谢水波] Key Discipline Lab. of National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, Hunan, China
通讯机构：
Key Laboratory of Pollution Control and Resources Reuse Technology of Hunan Province, University of South China, China
期刊：
Journal of Applied Sciences,2013年13(13):2614-2617 ISSN：1812-5654
通讯作者：
Liu, B.
作者机构：
[Hu, Shuai; Liu, Baoping] College of Economics and Management, University of South China, P.O. Box 421001, Hengyang City, Hunan Province, China;[Rong, Lishan] City Construction College, University of South China, P.O. Box 421001, Hengyang City, Hunan Province, China
期刊：
Applied Mechanics and Materials,2013年401-403:1493-1498 ISSN：1660-9336
通讯作者：
Wang, Zhong-you
作者机构：
[Chen, Zhen-fu; Wang, Zhong-you; Liu, Jun] Univ South China, Urban Construct Inst, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Wang, Zhong-you] U;Univ South China, Urban Construct Inst, Hengyang 421001, Hunan, Peoples R China.
会议名称：
International Conference on Frontiers of Manufacturing Science and Measuring Technology
会议时间：
2013-07-30
会议地点：
LiJiang(CN)
会议主办单位：
[Chen, Zhen-fu;Wang, Zhong-you;Liu, Jun] Univ South China, Urban Construct Inst, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
Frontiers of manufacturing science and measuring technology III: Selected, peer reviewed papers from the 2013 3rd International Conference on Frontiers of Manufacturing Science and Measuring Technology (ICFMM 2013), July 30-31, 2013, LiJiang, China
摘要：
There are two conventional techniques i.e. the approach based on structural testing and non-damaged detecting method, of which the former is partial to structural integrity analysis while the latter focuses on partial detection. The damage identification approach is discussed from the perspective of detection medium in the paper. And non-destructive testing in civil engineering (NDT-CE), of which the research status and existing issues are presented, can be attributed into three categories as following: one is based on the stress wave theory, such as impact-echo method, acoustic emission technique and ultrasonic pulse method; one employs the mechanism of electromagnetic wave propagation on behalf of GPR; one uses radiography as the medium, for instance, infrared imaging and computerized tomography. It is emphasized that ground penetrating radar (GPR) has been applied in practice and studied more and more, and moreover, the prospects in the field are provided.
摘要：
Using the numerical simulation method, this thesis studies the radon concentration distribution in downwind area of the flat ground uranium tailings impoundment with and without vegetation on the beach face under the wind speed of 0.5, 1.0, 2.0 and 4.0m/s. The numerical results show that the radon concentration decreases gradually with the increasing wind speed and distance from uranium tailings impoundment. As the wind speed is 0.5m/s, the radon concentration is higher in downwind area of uranium tailings impoundment, and accumulation range is larger and local pollution also becomes more serious. However, radon concentration and accumulation range falls rapidly with wind speed increased to 4.0m/s. At the same wind speed, radon concentration under the condition of beach face with vegetation is higher than the one without vegetation within 600m range of uranium tailings impoundment along the downwind direction, but radon concentration is lower under the condition of beach face with vegetation out of 600m range. It illustrates that vegetation can inhibit radon diffusion to some extent.
关键词：
Dunkirk sediments;compressibility;compressive strength behaviour;lime;shear strength test;triaxial test
摘要：
The increasing cost associated with high-quality materials has lead to the need for sediments to be treated and then used in road construction in the context of durable development. Therefore, the modification and stabilisation of Dunkirk marine sediments by using lime is necessary to study for their potential use in road construction. Based on the physical characteristics of untreated sediments, a series of laboratory tests to investigate the geotechnical properties of untreated sediments and lime-treated sediments, such as unconfined compressive strength tests, standard oedometer tests, direct shear tests and triaxial tests, were performed. Lime was added in percentages of 3% and 6%, by weight of dry sediments. The test results show a significant improvement in unconfined compressive strength and shear strength due to the addition of lime. From the strain–stress relationship of compressive strength tests, it can be found that the failure mode of solidified sediments develops gradually from plastic failure to brittle failure, while the failure strength increases and the failure strain decreases with lime content. Compared with untreated sediments, the shear strength parameters of solidified sediments determined by direct shear tests, such as internal friction angle and cohesion, are increased owing to the pozzolanic reaction between lime and clay minerals. Using the oedometer apparatus, it is observed that after lime treatment, the preconsolidation pressure, the coefficient of consolidation and the compression index are increased, while the swelling index is decreased. The characteristics of the deviator stress–axial strain relation and the pore water pressure distribution under different confining stresses are compared with untreated and treated sediments, and the effect of lime content on cohesion and internal friction angle determined by triaxial tests is discussed.
