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氢链系统二分量模型中非谐相互作用下的扭结
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作者 万明芳 《武汉交通科技大学学报》 1996年第5期621-625,共5页
在二分量模型中讨论了氢链系统原子间非谐相互作用下的扭结孤子,得到了扭结和反扭结孤子的解析解.当考虑非谐相互作用时。
关键词 氢链系统 二分量模型 扭结 非谐相互作用
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氢键分子系统的二分量孤子偶模型中的非谐特性 被引量:1
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作者 成元发 《湖北大学学报(自然科学版)》 CAS 2002年第1期33-37,共5页
以氢键分子系统中二分量孤子模型为基础 ,采用直接微扰方法 ,研究了氢键系统中非谐相互作用下扭结孤子偶的运动特性 ,获得了 3次方到 4次方非谐项下孤子偶的非对称解 ,计算了源于非谐项下孤子偶的能量 。
关键词 氢键分子系统 氢键分子链 二分孤子偶模型 非谐特性 扭结孤子偶 直接微扰方法 非对称解
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带有非对称双阱势的氢键固体中的非线性激发
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作者 成元发 张晨 陈绍敏 《湖北大学学报(自然科学版)》 CAS 北大核心 2006年第3期251-254,共4页
运用一个新的二分量孤子模型,研究带有非对称双阱势的氢键固体中的非线性激发和孤子运动特性,获得了钟型孤子解的表达式,计算了钟型孤子的动量、有效质量和能量.理论结果与实验相一致.
关键词 二分量模型 非线性激发 非对称双阱势
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氢键系统中重离子光学模对孤子的影响
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作者 成元发 黄亮 《湖北大学学报(自然科学版)》 CAS 北大核心 2008年第2期169-172,共4页
运用新的二分量孤子模型,采用变分方法,研究氢键系统中重离子光学模对孤子的影响,获得相应的运动方程和扭结孤子解,并进一步计算在重离子光学模影响下,扭结孤子的能量、动量和有效质量.
关键词 氢键系统 二分量模型 光学模 孤子
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氢键系统中孤子偶与杂质的相互作用
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作者 成元发 黄亮 《湖北大学学报(自然科学版)》 CAS 北大核心 2009年第4期370-374,共5页
采用集合坐标方法,运用新的二分量孤子模型,研究氢键系统中孤子偶与杂质的相互作用,得出在杂质区孤子偶的运动方程和入射速度的一般表达式,并进一步讨论在吸引型与排斥型两类不同杂质情况下孤子偶的运动特性.
关键词 氢键系统 二分量模型 杂质 孤子偶
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氢键系统中两类子晶格非简谐势作用下的孤子对
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作者 成元发 《湖北大学学报(自然科学版)》 CAS 2000年第1期44-48,共5页
以氢键系统中的二分量孤子模型为基础 ,研究了两类不同子晶格中非简谐势作用下的孤子对的运动 ,获得了源于非简谐性下孤子对的非对称解 ,并得出了孤子对的能量、有效质量和电荷密度 .
关键词 氢键链 二分量模型 孤子对 质子子晶格 非简谐性
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氢键分子链中原子间非谐相互作用下扭结反扭结孤子的特性
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作者 成元发 《湖北大学学报(自然科学版)》 CAS 2003年第1期37-41,共5页
在氢键分子链中,运用直接微扰方法,以二分量孤子模型为基础,研究了两类不同子晶格中原子间3次方到4次方非谐相互作用对扭结 反扭结孤子的影响,计算了非谐性下扭结 反扭结孤子的能量、动量、有效质量和电荷密度,结果与实验观察相一致.
关键词 氢键链 二分量模型 非谐性 扭结-反扭结弧子
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氢键系统中Bjerrum孤子偶缺陷的运动
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作者 成元发 《湖北大学学报(自然科学版)》 CAS 2001年第3期221-225,共5页
以一个新的二分量孤子模型为基础 ,讨论了氢键系统中Bjerrum孤子偶缺陷在外场作用下的运动特性 ,研究了Bjerrum孤子偶缺陷对于电磁波的散射 。
关键词 氢键系统 Bjerrum孤子偶 缺陷 迁移率 二分孤子模型 散射截面 电磁波
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氢键分子系统中扭结孤子偶的辐射及其核化特性
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作者 成元发 《湖北大学学报(自然科学版)》 CAS 2001年第1期35-38,共4页
:运用一个新的氢键系统的二分量孤子模型 ,讨论了氢键系统在外场作用下孤子偶的运动 ,研究了孤子偶对电磁波的散射和核化特性 ,得到了孤子偶对电磁波的散射截面和平均核化率的表达式 .
关键词 氢键链 散射截面 核化率 二分弧子模型 弧子偶 电磁波 氢键分子系统 弧子导电力学
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Functional Integrals and Quantum Fluctuations on Two-Dimensional Noncommutative Space-Time 被引量:5
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作者 YAN Jun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第9期445-448,共4页
The generalized Thirring model with impurity coupling is defined on two-dimensional noncommutativespace-time,a modified propagator and free energy are derived by means of functional integrals method.Moreover,quantum f... The generalized Thirring model with impurity coupling is defined on two-dimensional noncommutativespace-time,a modified propagator and free energy are derived by means of functional integrals method.Moreover,quantum fluctuations and excitation energies are calculated on two-dimensional black hole and soliton background. 展开更多
关键词 functional integrals quantum fluctuations noncommutative space-time
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Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate 被引量:8
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作者 赵素英 黄镜钊 +1 位作者 王良恩 黄国强 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2010年第5期755-760,共6页
A process composed of a fixed-bed and a distillation column with a side withdraw, mainly methanol, is developed to hydrolyze methyl acetate (MA) as a typical byproduct in polyvinyl alcohol (PVA) and pure terephthalic ... A process composed of a fixed-bed and a distillation column with a side withdraw, mainly methanol, is developed to hydrolyze methyl acetate (MA) as a typical byproduct in polyvinyl alcohol (PVA) and pure terephthalic acid (PTA) factory. The process is simulated by employing the equilibrium stage model RadFrac and plug flow model Rplug in Aspen Plus. Experiments are also carried out in a lab-scale to evaluate the process. The results show that at the molar ratio of water to methyl acetate about 4.0-5.0 in the feed stream and the volume ratio of distillate to feed MA above a critical value, the side product contains more than 80% (by mass) (MeOH) and less than 2% (by mass) MA, while the bottom contains more than 46% (by mass) acetic acid (HAc) and less than 0.5% (by mass) methanol with almost complete conversion of MA. Compared with the old catalytic distillation process we proposed before, this process can cut down 47.6% energy consumption and a distillation column. 展开更多
关键词 methyl acetate HYDROLYSIS SIMULATION
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Equilibrium and kinetics of copper ions removal from wastewater by ion exchange 被引量:11
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作者 P.C.C.Siu L.F.Koong +2 位作者 J.Saleem J.Barford G.McKay 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2016年第1期94-100,共7页
The removal of copper ions from wastewater by ion exchange has been studied using an iminodiacetate resin.The capacity of the resin for the copper ions has been determined to be 2.30 mmol·g^(-1) by measuring the ... The removal of copper ions from wastewater by ion exchange has been studied using an iminodiacetate resin.The capacity of the resin for the copper ions has been determined to be 2.30 mmol·g^(-1) by measuring the equilibrium isotherm at 25 °C and initial pH value of 3.5 where the final equilibrium p H value is 5. An analysis of equilibrium isotherm models showed that the best fit model was the Langmuir–Freundlich. The kinetics of the ion exchange process have been investigated and four kinetic models have been tested namely: Ritchie model, pseudo-second order model, pseudo-first order model and the Elovich model. The pseudo-second order model provides the best fit to the kinetic data. 展开更多
关键词 Freundlich isotherm Iminodiacetate resin Kinetic modeling Langmuir isotherm Langmuir–Freundlich isotherm
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Study on Control Strategy of Sulfur Dioxide Concentration in the Urban Area of Shijiazhuang
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作者 李光军 于立军 +2 位作者 范丽 王宇新 赵根喜 《Transactions of Tianjin University》 EI CAS 2003年第3期247-251,共5页
Two Gaussian air quality dispersion models, the industrial source complex short-term model (ISCST3) with and without modification have been used to simulate the pollutant concentration distribution in urban areas base... Two Gaussian air quality dispersion models, the industrial source complex short-term model (ISCST3) with and without modification have been used to simulate the pollutant concentration distribution in urban areas based on the meteorological data and the emissions distribution of sulfur dioxide. The verified data show that the modified model is more accurate in the urban area of Shijiazhuang. Using the modified model predictions, the control strategies of sulfur dioxide in the urban area have been studied, and the result show that the second long-term (to 2010) strategy can mitigate air pollution significantly and maintain pollution levels within permissible limits. 展开更多
关键词 air quality industrial source complex short-term model (ISCST3) sulfur dioxide control strategy
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Economic Analysis of CO2 Emission Abatement Applying a Dynamic CGE Model with Endogenous Technological Change: Impacts of the Time Horizon
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作者 K. Matsumoto 《Journal of Environmental Science and Engineering》 2011年第11期1454-1463,共10页
We evaluate economic and environmental impacts of climate change mitigation in a country scale considering various time horizons in the analysis applying a single-country dynamic computable general equilibrium model w... We evaluate economic and environmental impacts of climate change mitigation in a country scale considering various time horizons in the analysis applying a single-country dynamic computable general equilibrium model with endogenous technological change. Although there is a possibility that Gross Domestic Product (GDP) becomes larger for the abatement cases than the baseline case in the earlier years, it tends to be lower than that in the later years. The longer the time horizon and/or the more severe the abatement, the larger the negative impacts will be. When subsidizing R&D investment, increase in GDP compared to the baseline case is realized in the middle of the time horizon, and the larger increase tends to be observed for the longer-term cases. These results would be due to technological change induced by the subsidies and emission abatement. Environmental indicators are also improved. We showed that the results were influenced by the target time horizon when using an intertemporal dynamic model. 展开更多
关键词 Endogenous technological change intertemporal dynamic CGE time horizon economic impact climate change policy
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Effects of Anisotropy on Scalar Field Ghost Dark Energy and the Non-Equilibrium Thermodynamics in Fractal Cosmology
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作者 A.Najafi H.Hossienkhani 《Communications in Theoretical Physics》 SCIE CAS CSCD 2017年第10期553-564,共12页
Since the fractal cosmology has been created in early universe, therefore their models were mostly isotropic. The majority of previous studies had been based on FRW universe, while in the early universe, the best mode... Since the fractal cosmology has been created in early universe, therefore their models were mostly isotropic. The majority of previous studies had been based on FRW universe, while in the early universe, the best model for describing fractal cosmology is actually the anisotropic universe. Therefore in this work, by assuming the anisotropic universe, the cosmological implications of ghost and generalized ghost dark energy models with dark matter in fractal cosmology has been discussed. Moreover, the different kinds of dark energy models such as quintessence and tachyon field, with the generalized ghost dark energy in fractal universe has been investigated. In addition, we have reconstructed the Hubble parameter, H, the energy density, p, the deceleration parameter, q, the equations of state parameter, wD, for both ghost and generalized ghost dark energy models. This correspondence allows us to reconstruct the potential and the dynamics of a fractal canonical scalar field according to the evolution of generalized ghost dark energy density. Eventually, thermodynamics of the cosmological apparent horizon in fractal cosmology was investigated and the validity of the Generalized second law of thermodynamics (GSLT) have been examined in an anisotropic universe. The results show the influence of the anisotropy on the OSLT of thermodynamics in a fractal cosmology. 展开更多
关键词 anisotropic universe fractal cosmology ghost DE generalized ghost DE non-equilibrium ther-modynamics generalized second law
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LIFE DISTRIBUTION OF SERIES UNDER THE SUCCESSIVE DAMAGE MODEL
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作者 WANGDongqian C.D.Lai LIGuoying 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2003年第2期191-194,共4页
We analyse further the reliability behaviour of series and parallel systems in the successive damage model initiated by Downton. The results are compared with those obtained for other models with different bivariate d... We analyse further the reliability behaviour of series and parallel systems in the successive damage model initiated by Downton. The results are compared with those obtained for other models with different bivariate distributions. 展开更多
关键词 EXPONENTIAL bivariate exponential RELIABILITY successive damage model increasing failure rate average
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