5篇
您的检索式：作者名="Qixin Xiang"
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| 1 | Experimental and molecular dynamics study of gas flow characteristics in nanopores显示文摘Gas flow characteristics in nanopores were investigated experimentally and numerically using molecular dynamics (MD) simulations with an emphasis on the friction factor and gas viscosity. The results show that the viscosity and the friction factor in nanopores are much lower than those in macroscale channels. The actual viscosities obtained from the MD studies showed that the gas viscosity in nanopores is less than the macroscale viscosity because collisions between gas molecules are less frequent in high Knudsen number flows and there are more collisions with the wall. The MD simulations show that the velocity profile is composed of two parts, with a much steeper velocity gradient near the wall. | LIU QiXin JIANG PeiXue XIANG Heng | 2012 | Chinese Science Bulletin2012，57，13： | 4 |
| 2 | Molecular dynamics simulations of non-Fourier heat conduction显示文摘Unsteady heat conduction is known to deviate significantly from Fourier's law when the system time and length scales are within certain temporal and spatial windows of relaxation. Classical molecular dynamics simulations were used to investigate unsteady heat conduction in argon thin films with a sudden temperature increase or heat flux at one surface to study the non-Fourier heat conduction effects in argon thin films. The studies were conducted with both pure argon films and films with vacancy defects. The temperature profiles in the argon films showed the existence of mechanical waves when the thin film was suddenly heated and the wave nature of the heat propagation. The flux phase relaxation time, sq, and the temperature phase relaxation time, st, were calculated from the temporal variations of the energy flux and temperature distribution in the film. Comparisons of the MD temperature profiles with temperature profiles predicted by Fourier's law show that Fourier's law is not able to predict the temperature variations with time. Different film thicknesses were also studied to illustrate the variation of the time needed for the films to reach steady-state temperature profiles after a sudden temperature rise at one surface and to illustrate the finite speed of the energy waves. | Qixin Liu Peixue Jiang Heng Xiang | 2008 | Progress in Natural Science:Materials International2008，18，8： | 1 |
| 3 | Molecular dynamics study of the thermal conductivity of nanoscale argon film显示文摘 | Liu Qixin Jiang Peixue Xiang Heng | 2006 | Molecular Simulation2006，32，： | 1 |
| 4 | Method of Consistency Judgment for App Software’s User Comments显示文摘With the popularity of mobile intelligent terminal, user comments of App software is viewed as one of the research interests of social computing. Faced with the massive App software, most users usually view the other users’ comments and marks to selecting the desired App software. Due to the freedom and randomness of the network comments, the inconsistence between the user’s comment and mark makes it difficult to choose App software. This paper presents a method by analyzing the relationships among user’s comment information, the user’s mark and App software information. Firstly, the consistency between user’s comment information and App software information is judged. Then, through analyzing the grammar relationships among the feature-words, adverbs and the feature-sentiment-words in App software’s feature-sentimentword- pairs, the user’s emotional tendency about App software is quantified quantified combining with the dictionary and the network sentiment words. After calculating the user’s comprehensive score of App software, the consistency of App software’s user comment is judged by comparing this score and the user’s mark. Finally, the experimental results show that the method is effective. | Meng Ran Ying Jiang Qixin Xiang Jiaman Ding | 2016 | 国际计算机前沿大会会议论文集2016，，1： | 0 |
| 5 | Method of Relevance Judgment for App Software’s User Reviews显示文摘In order to judge whether the user reviews are relevant to App software, this paper proposed a method to judge the relevance of user reviews based on Naive Bayesian text classification and term frequency.Firstly, the keywords sets of App software’s user reviews are extracted. Then, the keywords sets are optimized. Finally, the relevance score of the user reviews are calculated, and whether the user reviews are relevant is judged. Through the experiment, this method is proved that can judge the relevance of App software’s user reviews effectively. | Qixin Xiang Ying Jiang Meng Ran Jiaman Ding | 2017 | 国际计算机前沿大会会议论文集2017，，2： | 0 |
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