全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
中外文文献  中文文献  外文文献
作者:陈建卓 , 王鹏
来源:[J].中国水土保持, 1995, (11), pp.39-42CNKI
摘要:河北省人为水土流失现状及防治对策陈建卓,王鹏(河北省水利厅,石家庄050011)近年来,随着我省经济的迅猛发展,城镇改造、水利水电、交通、能源等各种基本建设全面铺开,农业综合开发取...
被引频次:4下载频次:16
作者:王鹏 , 陈剑波
来源:[J].Pure Mathematics, 2016, Vol.06 (01), pp.42-49汉斯出版社
摘要:本文利用Moore-Penrose广义逆的方法,探讨了复矩阵方程的最小二乘Hermitian解,推到出了该类方程最小范数约束的最小二乘Hermitian解的解析形式。Based on Moore-Penrose generalized inverse, by making use of matrix-vector production, an an...
作者:王鹏 , 周琚 ...
来源:[J].Applied Physics, 2017, Vol.07 (05), pp.159-164汉斯出版社
摘要:Based on the hybrid functional theory, we investigated the effect of the long range Hartree-Fork term on the crystal structure and electronic structure of ferroelectric PbTiO3. It is found that the band gap based on the PBE exchange correlation potential with α of 0.325 is i...
作者:... 郭威 , 王仕琴 , 王鹏
来源:[J].Journal of Water Resources Research, 2016, Vol.05 (04), pp.334-349汉斯出版社
摘要:Microbial transport in porous media is a hot issue in fields of hydrology and water environment. Re-searches on the issue are helpful to restrain water-borne diseases and to improve the efficiency of polluted groundwater recovery. Over the past 15 years, the understanding about m...
作者:张楠 , 程理 , 王鹏
来源:[J].Advances in Applied Mathematics, 2017, Vol.06 (05), pp.677-684汉斯出版社
摘要:In this paper, we use the built-in data set iris to select the sample data according to the need to es-tablish the learning samples, simulate the missing values of the biological sample attributes and the missing two types of missing data. Using MATLAB as the tool, we use the sup...
作者:... 汤颢军 , 羿国香 , 王鹏
来源:[J].Hans Journal of Agricultural Sciences, 2017, Vol.07 (08), pp.570-577汉斯出版社
摘要:In this paper the reason of wheat lodging and its effects on yield and yield components are ana-lyzed during the April to May of 2017 year. On this base, the technologic strategy and measures are provided in the different areas of Hubei province.
作者:王鹏 , 史晨曦 ...
来源:[J].Sustainable Energy, 2015, Vol.05 (02), pp.11-16汉斯出版社
摘要:As phase change material, Na2SO4•10H2O has wide application, but the serious stratification influ-ences its effects. Uniform design software was used to prepare the anti-layered agent of phase change material on Na2SO4•10H2O to get the best formula. It could be gained from t...
作者:王鹏 , 朱新立 , 王芳
来源:[J].Advances in Psychology, 2015, Vol.05 (06), pp.365-375汉斯出版社
摘要:Multidimensional Item Response Theory (MIRT) is the new development of modern psychometric theories. The psychometric models, parameter estimation and application of MIRT are overviewed in this paper. It is concluded that the development of MIRT models should be combined with cog...
作者:王鹏 , 何丹丹 ...
来源:[J].Hans Journal of Chemical Engineering and Technology, 2013, Vol.03 (01), pp.30-33汉斯出版社
摘要:The solid base catalyst NaF/NaX was prepared by impregnation. Dehydroacetic acid was synthesized from ethylacetoacetate in those friendly environmental solid base. Effects of the calcination temperature, calcination time, loading amount, mass fraction of catalyst, reaction t...
作者:王鹏 , 史晨曦 ...
来源:[J].Sustainable Energy, 2015, Vol.05 (02), pp.11-16汉斯出版社
摘要:As phase change material, Na2SO4•10H2O has wide application, but the serious stratification influ-ences its effects. Uniform design software was used to prepare the anti-layered agent of phase change material on Na2SO4•10H2O to get the best formula. It could be gained from t...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×