Creat membership Creat membership
Sign in

Forgot password?

  • Forgot password?
    Sign Up
  • Confirm
    Sign In
home > search

Now showing items 1 - 16 of 184

  • Ejecta production from metal Sn into inert gases

    Wang, Fang   Liu, Jun   He, An-Min   Wang, Pei   Wang, Jian-Guo  

    Download Collect
  • Effect of Hydrogen-Induced Metallization on Chemisorption

    Gao, Yijing   Huang, Runhong   Wang, Jian-guo   Wu, Zili   Jiang, De-en  

    Download Collect
  • Iridium-Catalyzed Distal Hydroboration of Aliphatic Internal Alkenes

    Wang, Guangzhu   Liang, xinyi   Chen, Lili   Gao, Qian   Wang, Jian-Guo   Zhang, Panke   Peng, Qian   Xu, Senmiao  

    Download Collect
  • Slowing down of alpha particles in ICF DT plasmas

    He, Bin   Wang, Zhi-Gang   Wang, Jian-Guo  

    With the effects of the projectile recoil and plasma polarization considered, the slowing down of 3.54MeV alpha particles is studied in inertial confinement fusion DT plasmas within the plasma density range from 10(24) to 10(26) cm(-3) and the temperature range from 100 eV to 200 keV. It includes the rate of the energy change and range of the projectile, and the partition fraction of its energy deposition to the deuteron and triton. The comparison with other models is made and the reason for their difference is explored. It is found that the plasmas will not be heated by the alpha particle in its slowing down the process once the projectile energy becomes close to or less than the temperature of the electron or the deuteron and triton in the plasmas. This leads to less energy deposition to the deuteron and triton than that if the recoil of the projectile is neglected when the temperature is close to or higher than 100 keV. Our model is found to be able to provide relevant, reliable data in the large range of the density and temperature mentioned above, even if the density is around 10 26 cm(-3) while the deuteron and triton temperature is below 500 eV. Meanwhile, the two important models [Phys. Rev. 126, 1 (1962) and Phys. Rev. E 86, 016406 (2012)] are found not to work in this case. Some unreliable data are found in the last model, which include the range of alpha particles and the electron-ion energy partition fraction when the electron is much hotter than the deuteron and triton in the plasmas. Published by AIP Publishing.
    Download Collect
  • Stacked autoencoder for operation prediction of coke dry quenching process

    Wang, Jian-Guo   Wang, Yu   Yao, Yuan   Yang, Bang-Hua   Ma, Shi-Wei  

    Download Collect
  • The Physical Constraints on a New LoBAL QSO at z=3D4.82

    Yi, Weimin   Green, Richard   Bai, Jin-Ming   Wang, Tinggui   Grier, Catherine J.   Trump, Jonathan R.   Brandt, William N.   Zuo, Wenwen   Yang, Jinyi   Wang, Feige   Yang, Chenwei   Wu, Xue-Bing   Zhou, Hongyan   Fan, Xiaohui   Jiang, Linhua   Yang, Qian   Varricatt, Watson   Kerr, Tom   Milne, Peter   Benigni, Sam   Wang, Jian-Guo   Zhang, Jujia   Wang, Fang   Wang, Chuan-Jun   Xin, Yu-Xin   Fan, Yu-Feng   Chang, Liang   Zhang, Xiliang   Lun, Bao-Li  

    Very few low-ionization broad absorption line (LoBAL) QSOs have been found at high redshifts, to date. One high-redshift LoBAL QSO, J0122+1216, was recently discovered by the Lijiang 2.4 m Telescope, with an initial redshift determination of 4.76. Aiming to investigate its physical properties, we carried out follow-up observations in the optical and near-IR spectroscopy. Near-IR spectra from UKIRT and P200 confirm that it is a LoBAL, with a new redshift determination of 4.82 +/- 0.01 based on the Mg II emission-line. The new Mg II redshift determination reveals strong blueshifts and asymmetry of the high-ionization emission lines. We estimate a black hole mass of similar to 2.3 x 10(9) M-circle dot and Eddington ratio of similar to 1.0 according to the empirical Mg II-based single-epoch relation and bolometric correction factor. It is possible that strong outflows are the result of an extreme quasar environment driven by the high Eddington ratio. A lower limit on the outflowing kinetic power (>0.9% L-Edd) is derived from both emission and absorption lines, indicating that these outflows play a significant role in the feedback process that regulates the growth of its black hole, as well as host galaxy evolution.
    Download Collect
  • Ab initio research of stopping power for energetic ions in solids

    He, Bin   Meng, Xu-Jun   Wang, Jian-Guo  

    A new physical scenario is suggested to estimate the stopping power of energetic a particles in solid density Be, Na, and Al at room temperature in an ab initio way based on the average atom model. In the scenario the stopping power is caused by the transition of free electrons to higher energy states and the ionization of bound electrons of the atom. Our results are found generally in good agreement with the recommended data in AI, Be and Na as well as the experimental data in Al. A comparison of energy loss with the recent experiment of protons in Be indicates that the scenario is more reasonable than the local density approximation in this case. (C) 2016 Elsevier B.V. All rights reserved.
    Download Collect
  • Multiscale simulation on thermal stability of supported metal nanocatalysts

    Deng, Shengwei   Qiu, Chenglong   Yao, Zihao   Sun, Xiang   Wei, Zhongzhe   Zhuang, Guilin   Zhong, Xing   Wang, Jian-guo  

    Download Collect
  • Mo2TiC2 MXene: A Promising Catalyst for Electrocatalytic Ammonia Synthesis

    Gao, Yijing   Cao, Yongyong   Zhuo, Han   Sun, Xiang   Gu, Yongbing   Zhuang, Guilin   Deng, Shengwei   Zhong, Xing   Wei, Zhongzhe   Li, Xiaonian   Wang, Jian-guo  

    Download Collect
  • Seepage properties of crushed coal particles

    Ma, Dan   Miao, Xie-xing   Wu, Yu   Bai, Hai-bo   Wang, Jian-guo   Rezania, Mohammad   Huang, Yan-hua   Qian, Hong-wei  

    Gas release from the crushed coal formation during coal mining poses a threat to the normal storage and gas transport within coal seam. This sort of release is largely related with the evolution of gas seepage properties of crushed coal, namely, the evolution of gas seepage properties plays an important role in the gas extraction and the outburst prevention of coal seam. Meanwhile, the evolution is directly related to the volume and geometry of fractures within the crushed coal and strongly influenced by particle size and porosity (axial displacement). In order to investigate the effect, a gas flow apparatus connecting with the MTS815.02 system was designed. The gas seepage properties of crushed coal specimens with five particle sizes of a (2.5-5 mm), b (5-10 mm), c (10-15 mm), d (15-20 mm) and e (mixed sizes) under the variable axial displacement of 10,15, 20, 25, 30, 35, and 40 mm, respectively are measured by the revised MTS815.02 system. The results of test show that: The porosity decreases with the increase of axial displacement and the weight loss of larger particle size, respectively. Particle crushing during compaction is a main reason to increase small-size and emerge size 0-2.5 mm. Gas flow seepage properties of crushed coal are found to be strongly influenced by particle size and axial displacement. The permeability decreases and non Darcy coefficient increases with the increase of axial displacement (decreases of porosity) and the decrease of larger particle size, respectively. The permeability and non-Darcy coefficient are controlled by the fracture among the coal particles. The seepage properties of crushed coal are not only related to particle size, loading levels (axial displacement), but also the compound mode. Based on the regression analysis, the relationship between the permeability and non-Darcy coefficient and porosity shows that the exponential function can fit the experimental data well. (C) 2016 Elsevier B.V. All rights reserved.
    Download Collect
  • Investigations of the dielectronic recombination of phosphorus-like tin at CSRm

    Xu, Xin   Wang, Shu-Xing   Huang, Zhong-Kui   Wen, Wei-Qiang   Wang, Han-Bing   Xu, Tian-Heng   Chuai, Xiao-Ya   Dou, Li-Jun   Xu, Wei-Qing   Chen, Chong-Yang   Li, Chuan-Ying   Wang, Jian-Guo   Shi, Ying-Long   Dong, Chen-Zhong   Mao, Li-Jun   Yin, Da-Yu   Li, Jie   Ma, Xiao-Ming   Yang, Jian-Cheng   Yuan, You-Jin   Ma, Xin-Wen   Zhu, Lin-Fan  

    The electron-ion recombination for phosphorus-like Sn-112(35+) has been measured at the main cooler storage ring of the Heavy Ion Research Facility in Lanzhou, China, employing an electron-ion merged-beams technique. The absolute total recombination rate coefficients for electron-ion collision energies from 0 eV-14 eV are presented. Theoretical calculations of recombination rate coefficients were performed using the Flexible Atomic Code to compare with the experimental results. The contributions of dielectronic recombination and trielectronic recombination on the experimental rate coefficients have been identified with the help of the theoretical calculation. The present results show that the trielectronic recombination has a substantial contribution to the measured electron-ion recombination spectrum of Sn-112(35+). Although a reasonable agreement is found between the experimental and theoretical results the precise calculation of the electron-ion recombination rate coefficients for M-shell ions is still challengeable for the current theory.
    Download Collect
  • Soft-sensing method for optimizing combustion efficiency of reheating furnaces

    Wang, Jian-Guo   Shen, Tiao   Zhao, Jing-Hui   Ma, Shi-Wei   Wang, Xiao-Fei   Yao, Yuan   Chen, Tao  

    Rolling mill reheating furnaces are widely used in large-scale iron and steel plants, the efficient operation of which has been hampered by the complexity of the combustion mechanism. In this paper, a soft-sensing method is developed for modeling and predicting combustion efficiency since it cannot be measured directly. Statistical methods are utilized to ascertain the significance of the proposed derived variables for the combustion efficiency modeling. By employing the nonnegative garrote variable selection procedure, an adaptive scheme for combustion efficiency modeling and adjustment is proposed and virtually implemented on a rolling mill reheating furnace. The results show that significant energy saving can be achieved when the furnace is operated with the proposed model-based optimization strategy. (C) 2016 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
    Download Collect
  • Novel Integration Strategy for GNSS-Aided Inertial Integrated Navigation

    Qian, Kun   Wang, Jian-Guo   Hu, Baoxin  

    Download Collect
  • Soft-sensing method for optimizing combustion efficiency of reheating furnaces

    Wang, Jian-Guo   Shen, Tiao   Zhao, Jing-Hui   Ma, Shi-Wei   Wang, Xiao-Fei   Yao, Yuan   Chen, Tao  

    Download Collect
  • Rabies in Henan Province, China, 2010–2012

    Li, Guo-Wei   Qu, Zhen-Yu   Lam, Alfred King-Yin   Wang, Jian-Guo   Gao, Feng-Lan   Deng, Tong-Xing   Lu, Jia-Hai  

    Download Collect
  • ChemInform Abstract: Computational Catalysis in Nanotubes

    Wang, Jian-guo   Pan, Xi   Zhuang, Gui-lin   Lu, Xiao-hua  

    Download Collect
1 2 3 4 5 6 7 8 9 10


If you have any feedback, Please follow the official account to submit feedback.

Turn on your phone and scan

Submit Feedback