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| 1 | Temperature variation of a thermionic cathode during electron emission显示文摘It is necessary to know the actual temperature of a thermionic cathode that works as the electron source in a microwave tube. It has been found that the temperature of the cathode drops markedly during the thermionic emission. For example, the temperature could fall by about 30oC under a current density of 2.92 A/cm2. Using the molecular thermodynamics, the dependence of the cathode temperature on the emission current density has been obtained. It has been theoretically pointed out that several factors, such as heating model and temperature coefficient of resis-tance of heater, can influence the cathode temperature. These theoretical conclu-sions were supported by the experimental results. | LIU YanWen TIAN Hong HAN Yong XU ZhenYing MENG MingFeng ZHANG HongLai | 2008 | Science China(Technological Sciences)2008，51，9： | 22 |
| 2 | Non-equilibrium thermodynamics analysis and its application in interfacial mass transfer显示文摘Interfacial transfer plays an important role in multi-phase chemical processes. However, it is difficult to describe the complex interfacial transport behavior by the traditional mass transfer model. In this paper, we describe an interfacial mass transfer model based on linear non-equilibrium thermodynamics for the analysis of the rate of interfacial transport. The interfacial transfer process rate J depends on the interface mass transfer coefficient K, interfacial area A and chemical potential gradient at the interface. Potassium compounds were selected as model systems. A model based on linear non-equilibrium thermo-dynamics was established in order to describe and predict the transport rate at the solid-solution interface. Together with accurate experimental kinetic data for potassium ions obtained using ion-selective electrodes, a general model which can be used to describe the dissolution rate was established and used to analyze ways of improving the process rate. | LU XIaoHua JI YuanHui LIU HongLai | 2011 | Science China Chemistry2011，54，10： | 8 |
| 3 | Multiscale modeling of electrolytes in porous electrode:From equilibrium structure to non-equilibrium transport显示文摘Understanding the mechanisms and properties of various transport processes in the electrolyte,porous electrode,and at the interface between electrode and electrolyte plays a crucial role in guiding the improvement of electrolytes,materials and microstructures of electrode.Nanoscale equilibrium properties and nonequilibrium ion transport are substantially different to that in the bulk,which are difficult to observe from experiments directly.In this paper,we introduce equilibrium and no-equilibrium thermodynamics for electrolyte in porous electrodes or electrolyte-electrode interface.The equilibrium properties of electrical double layer(EDL)including the EDL structure and capacitance are discussed.In addition,classical non-equilibrium thermodynamic theory is introduced to help us understand the coupling effect of different transport processes.We also review the recent studies of nonequilibrium ion transport in porous electrode by molecular and continuum methods,among these methods,dynamic density functional theory(DDFT)shows tremendous potential as its high efficiency and high accuracy.Moreover,some opportunities for future development and application of the non-equilibrium thermodynamics in electrochemical system are prospected. | Haolan Tao Cheng Lian Honglai Liu | 2020 | Green Energy & Environment2020，5，3： | 5 |
| 4 | Bubble size fractal dimension,gas holdup,and mass transfer in a bubble column with dual internals显示文摘As the scale of residual oil treatment increases and cleaner production improves in China,slurry bubble column reactors face many challenges and opportunities for residual oil hydrogenation technology.The internals development is critical to adapt the long-term stable operation.In this paper,the volumetric mass transfer coefficient,gas holdup and bubble size in a gas-liquid up-flow column are studied with two kinds of internals.The gas holdup and volumetric mass transfer coefficient increase by 120% and 42% when the fractal dimension of bubbles increases from 0.56 to 2.56,respectively.The enhanced mass transfer processing may improve the coke suppression ability in the slurry reactor for residual oil treatment.The results can be useful for the exploration of reacting conditions,scale-up strategies,and oil adaptability.This work is valuable for the design of reactor systems and technological processes. | Xiao Xu Junjie Wang Qiang Yang Lei Wang Hao Lu Honglai Liu Hualin Wang | 2020 | Chinese Journal of Chemical Engineering2020，28，12： | 4 |
| 5 | ACCELERATED LIFE TEST STUDIES OF NEW COATED DISPENSER CATHODES显示文摘The life of impregnated Ba-W cathodes with a new construction have been evaluated using an accelerated life test at three different temperatures (1170℃,1130℃,1090℃) and constant current density (2A/cm^2).According to the relationship of life with operating temperatures,an accelerated equation has been set up.The cathode life at normal operating temperature is deducted based on the accelerated equation.The results show that life of the novel cathode exceeds 190,000 hour at a current density of 2A/cm^2. | Zhang Mingchen Zhang Honglai Liu Pukun Su Xiaobao Li Yutao | 2007 | Journal of Electronics(China)2007，24，5： | 2 |
| 6 | Post-synthesis modification of porous organic polymers with amine: a task-specific microenvironment for CO2 capture显示文摘 | Yankai Li Li Yang Xiang Zhu Jun Hu Honglai Liu | 2017 | International Journal of Coal Science & Technology2017，4，1： | 2 |
| 7 | A molecular thermodynamic model for temperature- and solvent-sensitive hydrogels, application to the swelling behavior of PNIPAm hydrogels in ethanol/water mixtures显示文摘 | Dongyan Zhi Yongmin Huang Xia Han Honglai Liu Ying Hu | 2010 | Chemical Engineering Science2010，，10： | 2 |
| 8 | CO_(2) capture and in-situ conversion: recent progresses and perspectives显示文摘Global warming caused by excess carbon dioxide(CO_(2))emission has been a focus of the world.The development of neutral carbon technologies becomes a strategic choice for the sustainable human society.Integrating CO_(2) capture and conversion(iCCC)technology can simultaneously convert the captured CO_(2) from flue gas into value-added chemicals,which saves great energies and expenses incurred in CO_(2) compression and transportation processes of conventional carbon capture,utilization,and storage(CCUS)technology.The present review criti-cally discusses the dual-function materials(DFMs)and the iCCC technology at intermediate temperature for methane production and high temperature for syngas production.The design of reactor and optimization of operation conditions are emphasized from the perspective of industrial applications.The dual-fixed-bed reactors mode by switching the flue gas and reactant gases,and the dual-fluidized-bed reactors mode by the circulation of DFMs particles are comparatively reviewed.We hope this review can stimulate further studies including designing and fabricating feasible DFMs,exploring realistic catalytic process for CO_(2) conversion to high value-added chemicals,developing workable reactor modes and optimizing operation conditions,and establishing industrial demonstration for real applications of iCCC technology in the future. | Bin Shao Yun Zhang Zheyi Sun Jianping Li Zihao Gao Zhicheng Xie Jun Hu Honglai Liu | 2022 | Green Chemical Engineering2022，3，3： | 2 |
| 9 | Recent advances in wireless epicortical and intracortical neuronal recording systems显示文摘An implantable brain-computer interface(BCI)has proven to be effective in the field of sensory and motor function restoration and in the treatment of neurological disorders.Using a BCI recording system,we can transform current methods of human interaction with machines and the environment,especially to help those with cognitive and mobility disabilities regain mobility and reintegrate into society.However,most reported work has focused on a simple aspect of the whole system,such as electrodes,circuits,or data transmission,and only a very small percentage of systems are wireless.A miniature,lightweight,wireless,implantable microsystem is key to realizing long-term,real-time,and stable monitoring on freely moving animals or humans in their natural conditions.Here,we summarize typical wireless recording systems,from recording electrodes,processing chips and controllers,wireless data transmission,and power supply to the system-level package for either epicortical electrocorticogram(ECoG)or intracortical local field potentials(LFPs)/spike acquisition,developed in recent years.Finally,we conclude with our vision of challenges in next-generation wireless neuronal recording systems for chronic and safe applications. | Bowen JI Zekai LIANG Xichen YUAN Honglai XU Minghao WANG Erwei YIN Zhejun GUO Longchun WANG Yuhao ZHOU Huicheng FENG Honglong CHANG Jingquan LIU | 2022 | Science China(Information Sciences)2022，65，4： | 2 |
| 10 | Simulation of Morphologies and Mechanical Properties of A/B Polymer Blend Film显示文摘The effects of blend composition and micro-phase structure on the mechanical behavior of A/B polymer blend film are studied by coupling the Monte Carlo(MC) simulation of morphology with the lattice spring model(LSM) of micro mechanics of materials.The MC method with bond length fluctuation and cavity diffusion algorithm on cubic lattice is adopted to simulate the micro-phase structure of A/B polymer blend.The information of morphology and structure is then inputted to the LSM composed of a three-dimensional network of springs to obtain the mechanical properties of polymer blend film.Simulated results show that the mechanical response is mainly affected by the density and the composition of polymer blend film through the morphology transition.When a force is applied on the outer boundary of polymer blend film,the vicinity of the inner cavities experiences higher stresses and strains responsible for the onset of crack propagation and the premature failure of the entire system. | ZHAO Xuezhe DENG Shengwei HUANG Yongmin LIU Honglai HU Ying | 2011 | Chinese Journal of Chemical Engineering2011，19，4： | 2 |
| 11 | Deformation and fracture of polystyrene/polypropylene blends: A simulation study显示文摘 | Shengwei Deng Xuezhe Zhao Yongmin Huang Xia Han Honglai Liu Ying Hu | 2011 | Polymer2011，，24： | 1 |
| 12 | Phase behavior and microstruetures of the Gemini(12-3-12,2Br-)-SDS-H2O ternary显示文摘 | Shang Yazhuo Liu Honglai Hu Ying | | 0，，： | 1 |
| 13 | Effect of salts on the aqueous two-phase system in mixed solutions of Gemi-ni(12-3-12,2Br-)and sodium dodecyl sulfate显示文摘 | Shang Yazhuo Liu Honglai Hu Ying | | 0，，： | 1 |
| 14 | Salt effect on the interactions between gemini surfactant and oppositely charged polyeleetrolyte in aqueous solution显示文摘 | Pi Yingying Shang Yazhuo Liu Honglai | | 0，，02： | 1 |
| 15 | Effect of the spacer group of cationic gemini surfactant on microemulsion phase behavior显示文摘 | Chen Lifei Shang Yazhuo Liu Honglai | | 0，，02： | 1 |
| 16 | Equations of state for copolymer systems based on different perturbation terms显示文摘 | Peng Changjun Liu Honglai Hu Ying | 2003 | Fluid Phase Equilibria2003，206，： | 1 |
| 17 | Interfacial tension in phase - separated aqueous cationic/anionic surfactant mixtures 显示文摘 | NAN YANQING LIU HONGLAI HU YING | 2006 | Journal of Colloid & Interface Science2006，293，2： | 1 |
| 18 | Multi-scale simulation of diffusion behavior of deterrent in propellant显示文摘Concentration distribution of the deterrent in single-base propellant during the process of firing plays an important role in the ballistic properties of gun propellant in weapons. However, the diffusion coefficient calculated by molecular dynamics(MD) simulation is 6 orders of magnitude larger than the experimental values. Meanwhile, few simple and comprehensive theoretical models can explain the phenomenon and accurately predict the concentration distribution of the propellant. Herein, an onion model combining with MD simulation and finite element method of diffusion in propellants is introduced to bridge the gap between the experiments and simulations, and correctly predict the concentration distribution of deterrent. Furthermore, a new time scale is found to characterize the diffusion process. Finally, the time-and position-depended concentration distributions of dibutyl phthalate in nitrocellulose are measured by Raman spectroscopy to verify the correctness of the onion model. This work not only provides guidance for the design of the deterrent, but could be also extended to the diffusion of small molecules in polymer with different crystallinity. | Pan Huang Zekai Zhang Yuxin Chen Changwei Liu Yong Zhang Cheng Lian Yajun Ding Honglai Liu | 2023 | Chinese Journal of Chemical Engineering2023，54，2： | 1 |
| 19 | Measurements of Isothermal Vapor-Liquid Equilibrium of Binary Methanol/ Dimethyl Carbonate System Under Pressure 显示文摘 | Shi Ytmhai Liu Honglai Wang Kun | 2005 | Fluid Phase Equilib2005，234，12： | 1 |
| 20 | Modeling of Surface Tension and Viscosity for Non-electrolyte Systems by Means of the Equation of State for Square-well Chain Fluids with Variable Interaction Range显示文摘The equation of state(EOS)for square-well chain fluid with variable range(SWCF-VR) developed in our previous work based on statistical mechanical theory for chemical association is employed for the correlations of surface tension and viscosity of common fluids and ionic liquids(ILs).A model of surface tension for multi-component mixtures is presented by combining the SWCF-VR EOS and the scaled particle theory and used to produce the surface tension of binary and ternary mixtures.The predicted surface tensions are in excellent agreement with the experimental data with an overall average absolute relative deviation(AAD)of 0.36%.A method for the calculation of dynamic viscosity of common fluids and ILs at high pressure is presented by combining Eyring’s rate theory of viscosity and the SWCF-VR EOS.The calculated viscosities are in good agreement with the experimental data with the overall AAD of 1.44% for 14 fluids in 84 cases.The salient feature is that the molecular parameters used in these models are self-consistent and can be applied to calculate different thermodynamic properties such as pVT,vapor-liquid equilibrium,caloric properties,surface tension,and viscosity. | LI Jinlong HE Changchun MA Jun PENG Changjun LIU Honglai HU Ying | 2011 | Chinese Journal of Chemical Engineering2011，19，4： | 1 |
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