作者机构：
[Zhang, P.; Zhuo, Q.; Yang, Z.M.; Jiang, Y.; Ding, Y.H.; Ren, H.M.] Institute of Rheology Mechanics, Xiangtan University, Hunan 411105, China;[Yang, Z.M.] College of Chemistry, Xiangtan University, Hunan 411105, China;[Ding, Y.H.] Chemical Process Simulation and Optimization Research Center, Ministry of Education, Xiangtan University, Hunan 411105, China
通讯机构：
[Ding, Y H] Institute of Rheology Mechanics, Xiangtan University, Hunan 411105, People's Republic of China.
摘要：
We present a totally green approach towards the synthesis and stabilization of aqueous graphene dispersions through UV-irradiated reduction of exfoliated graphene oxide (GO). Polyvinyl pyrrolidone (PVP) is used to enhance the dispersibility of reduced graphene oxide (RGO) by one-step functionalization. The proposed method is low cost and easy without using any photocatalysts or reducing agents, which can open up a new possibility for green preparation of stable RGO dispersions in large-scale production.
期刊：
Journal of Membrane Science,2009年329(1-2):56-59 ISSN：0376-7388
通讯作者：
Ding, Y.(yhding@yahoo.cn)
作者机构：
[Ding, Yanhuai; Di, Wei; Zhang, Ping; Jiang, Yong; Long, Zhilin; Xu, Fu] College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, China;[Ding, Yanhuai; Zhang, Ping; Jiang, Yong; Xu, Fu; Long, Zhilin] Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, China
期刊：
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics,2013年87(5) ISSN：1539-3755
通讯作者：
Luo, KH
作者机构：
[Li, Q.; Luo, K. H.] Energy Technology Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom;[Li, X. J.] School of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China;[Luo, K. H.] Key Laboratory for Thermal Science and Power Engineering, Ministry of Education, Tsinghua University, Beijing 100084, China
通讯机构：
[Luo, K. H.] Univ Southampton, Fac Engn & Environm, Energy Technol Res Grp, Southampton SO17 1BJ, Hants, England.
关键词：
Conceptual simplicity - Droplet oscillations - High Reynolds number - Interface thickness - Large density ratio - Lattice boltzmann models - Pseudopotential models - Thermodynamic consistency
摘要：
Owing to its conceptual simplicity and computational efficiency, the pseudopotential multiphase lattice Boltzmann (LB) model has attracted significant attention since its emergence. In this work, we aim to extend the pseudopotential LB model to simulate multiphase flows at large density ratio and relatively high Reynolds number. First, based on our recent work [Q. Li, K. H. Luo, and X. J. Li, Phys. Rev. E 86, 016709 (2012)], an improved forcing scheme is proposed for the multiple-relaxation-time pseudopotential LB model in order to achieve thermodynamic consistency and large density ratio in the model. Next, through investigating the effects of the parameter a in the Carnahan-Starling equation of state, we find that the interface thickness is approximately proportional to 1/root a. Using a smaller a will lead to a wider interface thickness, which can reduce the spurious currents and enhance the numerical stability of the pseudopotential model at large density ratio. Furthermore, it is found that a lower liquid viscosity can be gained in the pseudopotential model by increasing the kinematic viscosity ratio between the vapor and liquid phases. The improved pseudopotential LB model is numerically validated via the simulations of stationary droplet and droplet oscillation. Using the improved model as well as the above treatments, numerical simulations of droplet splashing on a thin liquid film are conducted at a density ratio in excess of 500 with Reynolds numbers ranging from 40 to 1000. The dynamics of droplet splashing is correctly reproduced and the predicted spread radius is found to obey the power law reported in the literature.
期刊：
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics,2012年86(1) ISSN：1539-3755
通讯作者：
Li, Q.
作者机构：
[Li, Q.; Luo, K.H.] Energy Technology Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom;[Li, X.J.] School of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China;[Luo, K.H.] Center for Combustion Energy, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
通讯机构：
[Li, Q.] Univ Southampton, Fac Engn & Environm, Energy Technol Res Grp, Southampton SO17 1BJ, Hants, England.
摘要：
The pseudopotential lattice Boltzmann (LB) model is a widely used multiphase model in the LB community. In this model, an interaction force, which is usually implemented via a forcing scheme, is employed to mimic the molecular interactions that cause phase segregation. The forcing scheme is therefore expected to play an important role in the pseudoepotential LB model. In this paper, we aim to address some key issues about forcing schemes in the pseudopotential LB model. First, theoretical and numerical analyses will be made for Shan-Chen's forcing scheme [Shan and Chen, Phys. Rev. E 47, 1815 (1993)] and the exact-difference-method forcing scheme [Kupershtokh et al., Comput. Math. Appl. 58, 965 (2009)]. The nature of these two schemes and their recovered macroscopic equations will be shown. Second, through a theoretical analysis, we will reveal the physics behind the phenomenon that different forcing schemes exhibit different performances in the pseudopotential LB model. Moreover, based on the analysis, we will present an improved forcing scheme and numerically demonstrate that the improved scheme can be treated as an alternative approach to achieving thermodynamic consistency in the pseudopotential LB model.
期刊：
Journal of Alloys and Compounds,2009年475(1-2):207-219 ISSN：0925-8388
通讯作者：
Long, Z.(longzl@xtu.edu.cn)
作者机构：
[Zhang, Ping; Long, Zhilin; Wei, Hongqin; Ding, Yanhuan] Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Xiangtan, Hunan 411105, China;[Xie, Guoqiang; Inoue, Akihisa] Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan;[Wei, Hongqin] Department of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, Hunan 422000, China
通讯机构：
[Long, Zhilin] Xiangtan Univ, Inst Fdn Mech & Mat Engn, Xiangtan 411105, Hunan, Peoples R China.
期刊：
Energy and Environmental Science,2014年7(5):1700-1707 ISSN：1754-5692
通讯作者：
Zhao, CX
作者机构：
[Yi, Lanhua] Department of Chemistry, Xiangtan University, Xiangtan 411105, China;[Zhang, Ping; Zhao, Caixian; Chen, Feng] School of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China;[You, Kuiyi; Zhao, Caixian; Chen, Feng; Luo, Hean] School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China
关键词：
Carbon layers - Charge recombinations - Hydrogen production rate - Nano-structured - Solar water splitting - Ultra-violet light - Water splitting - Wide band gap
作者：
Wu, Lijuan;Xiao, Qizhen;Li, Zhaohui;Lei, Gangtie;Zhang, Ping;Wang, Li
期刊：
Solid State Ionics,2012年215:24-28 ISSN：0167-2738
通讯作者：
Xiao, Q.(qizhenxiao2004@yahoo.com.cn)
作者机构：
[Lei, Gangtie; Wang, Li; Xiao, Qizhen; Li, Zhaohui; Wu, Lijuan] College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, China;[Zhang, Ping; Xiao, Qizhen; Wu, Lijuan] Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Hunan 411105, China
作者机构：
[Ding, Yanhuai; Zhang, Ping; Long, Zhilin; Jiang, Yong] College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, China;[Ding, Yanhuai; Zhang, Ping; Long, Zhilin; Jiang, Yong] Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, China;[Huang, Jiangnan; Liu, Gui; Yan, Wenjin] College of Chemical Engineering, Xiangtan University, Hunan 411105, China
作者机构：
[Wu, Lijuan; Lei, Gangtie; Xiao, Qizhen; Wang, Li; Li, Zhaohui] Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Hunan 411105, China;[Zhang, Ping; Xiao, Qizhen] College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China;[Zhang, Ping; Xiao, Qizhen] College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, China
期刊：
Science and Technology of Advanced Materials,2008年9(1):Article: 015005 ISSN：1468-6996
通讯作者：
Ding, Y.(yhding@xtu.edu.cn)
作者机构：
[Ding, Yanhuai; Zhang, Ping; Long, Zhilin; Jiang, Yong; Xu, Fu; Di, Wei] College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China;[Ding, Yanhuai; Zhang, Ping; Long, Zhilin; Jiang, Yong; Xu, Fu] Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China;Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China
通讯机构：
[Ding, Yanhuai] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan 411105, Hunan, Peoples R China.;College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, People’s Republic of China;Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, People’s Republic of China
摘要：
Abstract A one-step method preparing of poly(vinylidene fluoride)-based electrospun membranes (PEMs) containing TiO2 has been developed. The effect of TiO2 on the morphology, degree of crystallization and electrochemical behavior of PEMs was investigated by scanning electron microscopy (SEM), atomic force microscopy (AFM), differential scanning calorimetry (DSC) and electrochemical measurements. The PEMs containing TiO2 show improved ionic conductivity and cycling performance compared with pure PEMs.
期刊：
Journal of Alloys and Compounds,2008年462(1-2):52-59 ISSN：0925-8388
通讯作者：
Long, Z.(longzl@xtu.edu.cn)
作者机构：
[Zhang, Ping; Long, Zhilin] Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Xiangtan, Hunan 411105, China;[Shao, Yong; Long, Zhilin; Shen, Baolong; Xie, Guoqiang; Inoue, Akihisa] Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
通讯机构：
[Long, Zhilin] Xiangtan Univ, Inst Fundamental Mech & Mat Engn, Xiangtan 411105, Hunan, Peoples R China.
关键词：
(PL) properties - Bulk glassy alloys - composition ranges - Copper mold casting - Corrosion properties - Cr addition - Effective permeability - Fe Co B - Glass-forming ability (GFA) - Glassy alloys - High-saturation magnetization - Magnetic (CE) - Magnetic and mechanical properties - mechanical behaviors
摘要：
In this paper we construct optimal preconditioners for the discrete mathematical models arising in modeling the elastic responses of lattice block materials. We present extensive numerical experiments to show that the preconditioned system has a uniformly bounded condition number with respect to the size of problem and with respect to the parameter relating the stretching and bending of the beams in a lattice. Using the limiting system of partial differential equations, we show theoretically that for square lattices the proposed preconditioners are efficient by proving a uniform bound on the condition number of the preconditioned system.
作者：
Zhongmei Yang;Ping Zhang;Yanhuai Ding;Yong Jiang;Zhilin Long;Wenli Dai
期刊：
Materials Research Bulletin,2011年46(10):1625-1631 ISSN：0025-5408
通讯作者：
Yang, Z.(kalimodor@163.com)
作者机构：
[Zhongmei Yang; Wenli Dai] College of Chemistry, Xiangtan University, Xiangtan 411105, China;[Yanhuai Ding; Yong Jiang; Ping Zhang; Zhilin Long] Institute of Fundamental Mechanics and Materials Engineering, Xiangtan University, Xiangtan 411105, China
期刊：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2008年483-484(1-2 C):313-315 ISSN：0921-5093
通讯作者：
Zhao, RG
作者机构：
[Luo, Wenbo; Zhao, Rongguo] Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, China;[Luo, Wenbo; Zhao, Rongguo] Key Laboratory of Low Dimensional Materials and Application Technology, Xiangtan University, Ministry of Education, Hunan 411105, China
通讯机构：
[Zhao, Rongguo] Xiangtan Univ, Inst Fundamental Mech & Mat Engn, Xiangtan 411105, Peoples R China.
会议名称：
14th International Conference on the Strength of Materials (ICSMA 14)
会议时间：
JUN 04-09, 2006
会议地点：
Xian Jiaotong Univ, Xian, PEOPLES R CHINA
会议主办单位：
[Zhao, Rongguo;Luo, Wenbo] Xiangtan Univ, Inst Fundamental Mech & Mat Engn, Xiangtan 411105, Peoples R China.^[Zhao, Rongguo;Luo, Wenbo] Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China.
期刊：
STRENGTH OF MATERIALS,2018年50(5):781-787 ISSN：0039-2316
通讯作者：
Luo, W. B.
作者机构：
[W. B. Luo; B. Y. Yin; X. Liu; Y. Li; Y. P. Liu] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan, Peoples R China.;[W. B. Luo; X. Liu] Xiangtan Univ, Hunan Key Lab Geomech & Engn Safety, Xiangtan, Peoples R China.
通讯机构：
[Luo, W. B.] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan, Peoples R China.;[Luo, W. B.] Xiangtan Univ, Hunan Key Lab Geomech & Engn Safety, Xiangtan, Peoples R China.
摘要：
Polyethylene pipes are widely used in water supply, gas, and sewage systems due to their excellent mechanical properties. A slow crack growth is the primary fracture mechanism for the pipes under long-term internal pressures. If the creep loading is treated as a special case of fatigue loading, the slow crack growth kinetics of polyethylene is defined in fatigue fracture tests at different stress ratios and extrapolated to creep crack kinetics. Linear elastic fracture mechanics concepts became the basis for predicting the creep lifetime of pressure-tight pipes subjected to various hoop stresses from extrapolated (synthetic) creep crack growth curves, and the prediction is in good agreement with the standard extrapolation in accordance with ISO 9080.
作者：
Ping Wang;Guangcai Gong*;Liqun Cai;Huahui Xie;Siyue Gong
期刊：
International Journal of Green Energy,2018年15(12):681-691 ISSN：1543-5075
通讯作者：
Guangcai Gong
作者机构：
[Ping Wang; Guangcai Gong; Liqun Cai; Huahui Xie; Siyue Gong] College of Civil Engineering, Hunan University, Changsha, Hunan, China;[Ping Wang] Faculty of building environment and equipment engineering, Civil Engineering and Mechanics, Xiangtan University, Xiangtan, Hunan, China;Faculty of building environment and equipment engineering, Civil Engineering and Mechanics, Xiangtan University, Xiangtan, Hunan, China
通讯机构：
[Gong, Guangcai] Hunan Univ, Coll Civil Engn, Changsha 410082, Hunan, Peoples R China.;College of Civil Engineering, Hunan University, Changsha, Hunan, China
关键词：
Building energy efficiency;cost;energy consumption;exergy consumption;Ratio of Exergy consumption to Energy consumption (REXE)
摘要：
The Ratio of Exergy consumption to Energy consumption (REXE) of the building is defined in the paper. The building life cycle REXELC provides a full understanding of high-quality energy consumption during the building life cycle. It is proposed as a new thermodynamic parameter to evaluate the building life cycle energy efficiency. It also can be applied as a simplified way to calculate the building life cycle exergy consumption. Five public buildings in China are taken as the study cases. The energy consumption, exergy consumption, and cost per construction area of the five cases are calculated to study the parameter REXELC. It is concluded that the building life cycle REXELC mainly depends on the energy consumption proportion and REXE of the building material’s production stage and building running stage. The economic analysis of the buildings shows that the building with too large or too small REXELC would not be the economic one. At last 2 mathematical regression models are established to investigate the relation between building life cycle energy consumption and REXELC. According to the regression model, all the buildings can be divided into four zones. The REXELC would be an important instruction in optimizing the design of building envelope.
期刊：
STRENGTH OF MATERIALS,2018年50(5):764-771 ISSN：0039-2316
通讯作者：
Luo, W. B.
作者机构：
[X. R. Wang; B. Y. Yin; W. B. Luo] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan, Peoples R China.;[W. B. Luo] Xiangtan Univ, Hunan Key Lab Geomech & Engn Safety, Xiangtan, Peoples R China.
通讯机构：
[Luo, W. B.] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan, Peoples R China.;[Luo, W. B.] Xiangtan Univ, Hunan Key Lab Geomech & Engn Safety, Xiangtan, Peoples R China.
摘要：
The fatigue damage characteristics of an asphalt mixture were analyzed, a new fatigue damage model was constructed based on the Schapery pseudovariable theory and continuum damage mechanics. According to the Schapery theory and the generalized elastic-viscoelastic correspondence principle, the experimental stress–strain curves of the asphalt mixture are transformed into the stress vs. pseudostrain curves. The relation between stress and pseudostrain is shown to be linear, which eliminates the viscoelastic hysteresis effect of the asphalt mixture and its time dependence. Pseudostiffness decreases gradually with the number of fatigue cycles. The damage variable is defined by the change in pseudostiffness. The parameters of the fatigue damage model are verified by fatigue tests up to 1000 cycles, and the fatigue damage for 2000 cycles is predicted and compared with the test results, which are in good agreement between themselves.
作者：
Ding, Yanhuai;Zhang, Ping;Long, Zhilin;Jiang, Yong;Xu, Fu
期刊：
Journal of Alloys and Compounds,2009年487(1-2):507-510 ISSN：0925-8388
通讯作者：
Ding, Y.(yhding@xtu.edu.cn)
作者机构：
[Ding, Yanhuai; Zhang, Ping; Jiang, Yong; Xu, Fu; Long, Zhilin] College of Civil Engineering and Mechanics, Xiangtan University, Hunan 411105, China;[Ding, Yanhuai; Zhang, Ping; Jiang, Yong; Xu, Fu; Long, Zhilin] Institute of Fundamental Mechanics and Material Engineering, Xiangtan University, Hunan 411105, China