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层进机理离子交换反应动力学 Ⅱ,有限浴中粒度不均一交换剂的离子交换反应

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兰州大学学报 1983年第4期 72-81页

作者：陈星蕖邢正陶祖贻

本文研究了在有限浴溶液中,在离子交换树脂粒度不均一条件下。按层进机理进行的离子交换反应动力学,利用准静态近似,导出了在颗粒半径不同的交换剂中,动边界的半径随反应时间变化的常微分方程组,通过对所得方程式的数值计算,得出了某些... 详细信息

本文研究了在有限浴溶液中,在离子交换树脂粒度不均一条件下。按层进机理进行的离子交换反应动力学,利用准静态近似,导出了在颗粒半径不同的交换剂中,动边界的半径随反应时间变化的常微分方程组,通过对所得方程式的数值计算,得出了某些结论。

关键词：离子交换反应离子交换树脂整理剂离子交换剂动力学中粒度

In Superdeformed Bands ΔI=2 Staggering

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Chinese Physics Letters 1996年第12期13卷 893-895页

作者： xing zheng WANG Xiao-chun chen xing-qu Department of Modern Physics Lanzhou UniversityLanzhou 730000

By using triaxial-particle-rotor model with a perturbation term,ΔI=2 staggering effects in the γ-transition energies of superdeformed bands built upon j_(15/2) orbitals are *** general features of ΔI=2 staggering which have been observed are obtained in the *** model provides a possibility to fit the calculated values to the experimental data.

关键词： bands perturbation transition

Description of Superdeformed Triaxial Band in ^(163)Lu

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Chinese Physics Letters 1998年第3期15卷 170-172页

作者： xing zheng WANG Zi-xing chen xing-qu Department of Modern Physics Lanzhou UniversityLanzhou 730000 Institute of Nuclear Research Chinese Academy of SciencesShanghai 201800

Using triaxial-particle-rotor model,theγ-transition energies,kinematic and dynamic moments of inertia and the transition quadrupole moments forπ[6601/2]band in ^(163)Lu are calculated and compared with the observed ... 详细信息

关键词： moments inertia

A Criterion of Superdeformed Triaxial Shape

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Chinese Physics Letters 1999年第3期16卷 172-174页

作者： xing zheng WANG Zi-xing chen xing-qu XU Jin-zhang Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion AcceleratorLanzhou 730000 Department of Modern Physics Lanzhou UniversityLanzhou 730000 Institute of Nuclear Research Chinese Academy of SciencesShanghai 201800

Using axially-symmetric and triaxial superdeformed modelsπ[6001/2]band in 165Lu is *** observedγ-transition energies can be reproduced quite well in both ***,the triaxiality factor F(I)and the ratio of dynamical quadrupole moment Q(l)to Q(2)in axially-symmetric superdeformed model are essentially different from those in triaxial superdeformed model,which may be used to determine the nuclear *** measurement of the electromagnetic transition probabilities,combined with the information from the energy levels is *** information which may differentiate triaxial superdeformation from axially-symmetric superdeformation is discussed.

关键词： symmetric Criterion axial

A downshifting Eu^3+doped glass embedded with concave pyramid microstructure to improve the efficiency of silicon solar cell

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Journal of Rare Earths 2020年第11期38卷 1158-1164,I0001页

作者： xing Yang Jiachao chen Songsheng zheng Chao chen College of Energy Xiamen UniversityXiamen 361005China

The average photoelectric conversion efficiency(PCE)of a bare mono crystalline silicon solar cell is 14.71%±0.03%under *** decreases to 14.20%±0.005%when covering an un-doped flat glass on the solar cell,and it goes down to 14.10%±0.005%by using a 5 wt%Eu^3+doped *** absorptions of the Eu^3+doped CPM glass one-to-one match the excitation spectra at 362,381,393,400,413 and464 nm,which are related to the transitions of 7 F0→(5 D4,5 G2,5 L6,5 D3),7 F1→5 D3,and 7 F0→5 D2,*** addition,a concave pyramid microstructure(CPM)is embedded in the glass surface to increase light *** average PCE increases to 14.61%±0.07%when a 5 wt%Eu^3+doped CPM glass covers on the silicon solar *** with the un-doped flat glass,a net increase of the PCE is0.41%,where the 0.16%increment of PCE is from the lighting trapping of the CPM structure,and the downshifting of near ultraviolet(NUV)light by Eu^3+ion donates the other 0.25%*** confirms that the as-prepared Eu^3+doped CPM glass has a good downshifting and antireflection function.

关键词： Solar cell Concave pyramid microstructure Eu^3+doped glass Photoelectric conversion efficiency Rare earths

Configuration Assignment of Superdeformed Bands in Odd-A Hg nuclei

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Chinese journal of nuclear physics 1994年第2期16卷 133-138页

作者： chen, xingqu xing, zheng Lanzhou Univ Lanzhou China

-By using particle-rotor model,the configuration of the superderformed(SD)bands in odd-A Hg nuclei is *** is shown that the electromagnetic transitionproperties of the SD bands can be used to further identify the conf... 详细信息

关键词： Nuclear structure Superdeformed bands Particle-rotor model Configuration assignment

Nb_(2)O_(5)promoted Pd/AC catalyst for selective phenol hydrogenation to cyclohexanone

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Chinese Journal of Chemical Engineering 2022年第4期35卷 87-93页

作者： Chunhua Zhang zhengyan qu Hong Jiang Rizhi chen Weihong xing State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech UniversityNanjing 210009China Changzhou Key Laboratory of Eco-Textile Technology Changzhou Vocational Institute of Textile and GarmentChangzhou 213164China

Phenol hydrogenation is a green route to prepare cyclohexanone,an intermediate for the production of nylon 66 and nylon *** development of high-performance catalysts still keeps a great ***,the activated carbon(AC)was modified with an acidic material Nb_(2)O_(5)to adjust the microstructure and surface properties of AC,and the influences of the calcination temperature and Nb_(2)O_(5)content on the catalytic performance of the Pd/AC-Nb_(2)O_(5)catalysts for the phenol hydrogenation to cyclohexanone were *** Nb_(2)O_(5)with proper content can be highly uniformly distributed on the AC surface,enhancing the acidity of the Pd/AC-Nb_(2)O_(5)catalysts with comparable specific surface area and Pd dispersion,thereby improving the catalytic *** hybrid Pd/AC-10 Nb_(2)O_(5)-500 catalyst exhibits the synergistic effect between the Pd nanoparticles and AC-10 Nb_(2)O_(5),which enhances the catalytic activity for the hydrogenation of ***,the as-prepared Pd/AC-10 Nb_(2)O_(5)-500 catalyst shows good reusability during 7 reaction cycles.

关键词： Phenol hydrogenation Cyclohexanone Nb_(2)O_(5) Pd/AC Acidity

Healthy and low-carbon communities: Design, optimization, and new technologies

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Building Simulation 2023年第9期16卷 1583-1585页

作者： Jianlin Liu xing zheng Yixing chen College of Environmental Science and Engineering Donghua UniversityChina Future Cities Lab Global Singapore-ETH CentreSingapore College of Civil Engineering Hunan UniversityChina

As the world grapples with the challenges of global warming,the urban heat island(UHI)effect,urban air pollution,and the imperative to transition towards low-carbon economies,the role of communities in fostering sustainability and innovation becomes more critical than *** example,the frequent occurrences of air pollution and extreme weather conditions have seriously threatened residents’health and property *** global warming and urban heat island effect bring challenges to the climate resilience of *** has accelerated the growth of building stock and urban energy consumption.

关键词： pollution island warming

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Analysis of *** Bands

Chinese journal of nuclear physics 1995年第1期17卷 40-42页

作者： chen, xingqu xing, zheng Lanzhou Univ Lanzhou China

Identical superdeformed bands in 191Au and 191Hg have been investigated byusing particle-rotor model within the framework of the BCS （Bardeen-Cooper-Schrieffer） pairing *** identity in the γ-transition energies in ... 详细信息

关键词： Superdeformed bands Identical bands Particle-rotor model