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| 1 | β-delayed proton decays near the proton drip line显示文摘We briefly reviewed the experimental study on a-delayed proton decays near the proton drip line published by our group during the period of 1996―2004, namely the first observation of the a-delayed proton decays of 9 new nuclides in the rare-earth region and the new measurements of a-delayed proton decays of 5 nuclides in the mass ~90 region near the N = Z line with the aid of the “p-?” coincidence in combination with a He-jet tape transport system. In the meantime some important experimental technique details were supplemented. The experimental results, including the half -lives, spins, parities, deformations and production reaction cross sections for the 14 nuclei were summarized and compared with the current nuclear-model predictions, and then the following points were represented. (1) The experimental half-lives for 85Mo and 92Rh as well as the predicted “waiting point” nuclei 89Ru and 93Pd are 5―10 times longer than the theoretical predictions given by M?ller et al. using a macroscopic-microscopic model. It considerably influences the predictions of the abundances of the nuclides produced in the rp-process. (2) The current-model predictions are not consistent with the experimental assignments of the spins and parities for the proton drip-line nuclei 142Ho and 128Pm. However, the nuclear potential energy surface (PES) calculated by using a Woods- Saxon-Strutinsky method reproduced the experimental results. (3) The Alice code overestimated the production reaction cross sections of the studied 9 rare-earth nuclei by one order of magnitude or two, while HIVAP code overestimated them by one order of magnitude approximately. | XU Shuwei 1 , LI Zhankui 1 , XIE Yuanxiang 1 , HUANG Wenxue 1 , SHU Nengchuan 2 , CHEN Yongshou 2 , XU Furong 3 , WANG Kun 4 , PAN Qiangyan 1 , WANG Xudong 1 , YU Yong 1 & XING Yebing 1 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2. Nuclear Physics Department, China Institute of Atomic Energy, Beijing 102413, China 3. Department of Technical Physics, Peking University, Beijing 100871, China 4. Shanghai Institute for Nuclear Research, Shanghai 201800, China | 2005 | Science China(Physics,Mechanics & Astronomy)2005，48，3： | 2 |
| 2 | Experimental study on impacts of fuel type on thermo-acoustic instability in a gas turbine model combustor显示文摘Effects of liquid fuel composition variations on characteristics of self-excited thermo-acoustic instabilities in a lean premixed,pre-vaporized gas turbine model combustor were experimentally studied.Test fuels included practical RP-3 jet fuel and its blending with iso-octane and n-dodecane,which were branched and linear alkanes respectively.Under the test conditions,dynamic pressure measurements indicated that the dominant instability frequency was highest for RP-3 flame,while RP-3/ndodecane flame exhibited the strongest instability strength.A further analysis showed that the instability frequency correlated well with the profiles of adiabatic flame temperature,and the strength of the instability highly depended on the ignition delay times of the fuels.Measurements of the flame structure and flow field with OH*chemiluminescence (CL) imaging and twodimensional particle image velocimetry (PIV) techniques indicated that changes in the fuel composition did not alter the unstable modes and general sequences of flame-flow structure oscillations.Further power spectra and proper orthogonal decomposition(POD) analysis suggested that axial oscillations along with precessing vortex core (PVC) induced helical motion predominated periodic flame structure and flow field oscillations. | RUAN Can CHEN FeiEr YU Tao CAI WeiWei HE ZhuoYao MAO YeBing LI XinLing LU XingCai | 2021 | Science China(Technological Sciences)2021，64，6： | 1 |
| 3 | Spectrum and potential pathogenesis of revesibleposterior leukoencephalopathy syndrome显示文摘 | Li Yebing | 2012 | J Stroke Cerebro-vasc Dis2012，21，8： | 1 |
| 4 | A self-assembled nanoflower-like Ni_(5)P_(4)@NiSe_(2) heterostructure with hierarchical pores triggering high-efficiency electrocatalysis for Li-O_(2) batteries显示文摘The remarkably high theoretical energy densities of Li–O_(2) batteries have triggered tremendous efforts for next-generation conversion devices.Discovering efficient oxygen reduction reaction and oxygen evolution reaction(ORR/OER)bifunctional catalysts and revealing their internal structure-property relationships are crucial in developing high-performance Li–O_(2) batteries.Herein,we have prepared a nanoflower-like Ni_(5)P_(4)@NiSe_(2) heterostructure and employed it as a cathode catalyst for Li–O_(2) batteries.As expected,the three-dimensional biphasic Ni_(5)P_(4)@NiSe_(2) nanoflowers facilitated the exposure of adequate active moieties and provide sufficient space to store more discharge products.Moreover,the strong electron redistribution between Ni_(5)P_(4) and NiSe_(2) heterojunctions could result in the built-in electric fields,thus greatly facilitating the ORR/OER kinetics.Based on the above merits,the Ni_(5)P_(4)@NiSe_(2) heterostructure catalyst improved the catalytic performance of Li–O_(2) batteries and holds great promise in realizing their practical applications as well as inspiration for the design of other catalytic materials. | Xue Han Yanjie Liang Lanling Zhao Jun Wang Qing Xia Deyuan Li Yao Liu Zhaorui Zhou Yuxin Long Yebing Li Yiming Zhang Shulei Chou | 2022 | Materials Futures2022，1，3： | 0 |
| 5 | Enrichment,expansion,and identification of stem-like cells from hepatic carcinoma HepG2 cells显示文摘Objective:To establish a method for enriching,culturing and identifying stem-like subpopulation from human hepatic carcinoma cells,and to explore its biological properties.Methods:HepG2cells were cultured in cancer stem cell(CSC)medium to form spheroids.The stem-like HepG2cells obtained from tumor spheroids were then expanded.Flow cytometry was used to detect the expression of CD90 and CD133on the surface of stem-like HepG2 cells.The in vitro colony forming ability and in vivo tumorigenicity were detected by clone formation assay and tumorigenesis assay.Results:HepG2cells could grow in suspension and form spheroids in CSC medium.The stem-like cells had the ability of self-renewal and proliferation.The expression of CD90and CD133on the surface of these stem-like cells were higher than those of parental HepG2cells(P<0.01).The colony formation ability of stem-like cells was higher than that of parental HepG2cells.When injected with 1×106 cells,stemlike cells could form tumors earlier than parental cells in nude mice.The stem-like cells’tumorigenesis rate was higher and the tumor size was larger than those of parental HepG2cells(P<0.01).Conclusion:The suspension sphere culture method could enrich stem-like cells from HepG2cells.The obtained stem-like cells possessed the properties of self-renewal in vitro and tumorigenicity in vivo. | Biyu Cui Yebing Pang Xuehui Zhang Jing Lan Xilei Li Manya Wu Xing Guo Rong Liang Yan Feng Xiaoling Luo | 2017 | 广西医科大学学报2017，34，1： | 0 |
| 6 | β-delayed Proton Decays near Proton Drip Line显示文摘We briefly reviewed the experimental study onβ-delayed proton decays near the proton drip line published by our group during the period of 1996-2004, namely the first observation of theβ-delayed proton decays of 9 new nuclides in the rare-earth region (Fig.1)and the new measurements ofβ-delayed proton decays of 5 nuclides in the mass≈90 region near the N = Z line (Fig. 2) with the aid of the 'p-γ' | Xu Shuwei Li Zhankui Xie Yuanxiang Huang Wenxue Shu Nengchuan Chen Yongshou Xu Furong Wang Kun Pan Qiangyan Wang Xudong Yu Yong Xing Yebing | 2005 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2005，，1： | 0 |
| 7 | Development of a new high-shear and low-pressure grinding wheel and its grinding characteristics for Inconel718 alloy显示文摘Nickel-based alloy has been widely used due to its outstanding mechanical properties.However, Nickel-based alloy is a typical difficult-to-machine material, which is a great constrain for its application in the manufacturing field. To improve the surface quality of the ground workpiece, a new high-shear and low-pressure grinding wheel, with high ratio of tangential grinding force to normal grinding force, was fabricated for the grinding of selective laser melting(SLM) manufactured Inconel718 alloy. The principle of high-shear and low-pressure grinding process was introduced in detail, which was quite different from the conventional grinding process. The fabrication process of the new grinding wheel was illustrated. A serial of experiments with different processing parameters were carried out to investigate the grinding performance of the developed grinding wheel via analyzing surface roughness and surface morphology of the ground workpiece.The optimal processing parameters of high-shear and low-pressure grinding were obtained. The surface roughness of ground workpiece was reduced to 0.232 μm from the initial value of 0.490 μm under the optimal grinding conditions. It was found that the initial scratches on the ground workpiece were almost completely removed after the observations with the metalloscopy and the fieldemission scanning electron microscopy(FE-SEM). The capability of the newly developed highshear and low-pressure grinding wheel was validated. | Bing LIU Yebing TIAN Jinguo HAN Linguang LI Zhiqiang GU Xintao HU | 2022 | Chinese Journal of Aeronautics2022，35，12： | 0 |
| 8 | 2H-MoS_(2)Modified Nitrogen-Doped Hollow Mesoporous Carbon Spheres as the Efficient Catalytic Cathode Catalyst for Aprotic Lithium-Oxygen Batteries显示文摘Developing excellent cathode catalysts with superior catalytic activities is essential for the practical application of aprotic lithium-oxygen batteries(LOBs).Herein,we successfully synthesized nitrogen-doped hollow mesoporous carbon spheres encapsulated with molybdenum disulfide(MoS_(2))nanosheets as the cathode catalyst for rechargeable LOBs,and the relationship between the battery performance and structural characteristics was intensively researched.We found that the synergistic effect of the nitrogen-doped mesoporous carbon and MoS_(2)nanosheets endows superior electrocatalytic activities to the composite catalyst.On the one hand,the nitrogen-doped mesoporous carbon could enable fast charge transfer and effectively accommodate more discharging products in the composite skeleton.On the other hand,the thin MoS_(2)nanosheets could promote mass transportation to facilitate the revisable formation and decomposition of the Li2O2 during oxygen reduction reaction and oxygen evolution reaction,and the side reactions were also prevented,apparently due to their full coverage on the composite surfaces.As a result,the catalytic cathode loaded with 2H-MoS_(2)-modified nitrogen-doped hollow mesoporous carbon spheres exhibited excellent electrochemical performance in terms of large discharge-/charge-specific capacities with low overpotentials and extended cycling life,and they hold great promise for acting as the cathode catalyst for high-performance LOBs. | Zhaorui Zhou Lanling Zhao Yao Liu Deyuan Li Qing Xia Jun Wang Zidong Zhang Xue Han Yuxin Long Yiming Zhang Yebing Li Shulei Chou | 2023 | Renewables2023，1，1： | 0 |
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