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| 1 | Nitrogen/sulfur co-doped hollow carbon nanofiber anode obtained from polypyrrole with enhanced electrochemical performance for Na-ion batteries显示文摘Polypyrrole and sulfur derived hollow carbon nanofibers co-doped with nitrogen/sulfur are synthesized and applied as the anode for Na-ion batteries(NIBs). Successful doping of hollow carbon nanofiber with nitrogen and sulfur is confirmed by X-ray photoelectron spectroscopy, scanning and tunneling electron microscopy. Further analysis certifies that sulfur doping has a significant impact in improving the elecctrochemical performance of the carbon-based anodes for NIBs. The obtained N-doped hollow carbon nanofiber and N/S co-doped hollow carbon nanofiber exhibit similar morphologies but different electrochemical behavior. As expected, the N/S co-doped hollow carbon nanofiber anode exhibits enhanced electrochemical performance, including high specific capacity, outstanding long-term stability, and good rate stability. | Zhigao Luo Sainan Liu Yangshen Cai Shi Li Anqiang Pan Shuquan Liang | 2018 | Science Bulletin2018，63，2： | 4 |
| 2 | An Improved Double-Threshold Method Based on Gradient Histogram显示文摘This paper analyzes the characteristics of the output gradient histogram and shortages of several traditional automatic threshold methods in order to segment the gradient image better. Then an improved double\|threshold method is proposed, which is combined with the method of maximum classes variance, estimating\|area method and double\|threshold method. This method can automatically select two different thresholds to segment gradient images. The computer simulation is performed on the traditional methods and this algorithm and proves that this method can get satisfying result. | YANGShen CHENShu-zhen ZHANGBing | 2004 | Wuhan University Journal of Natural Sciences2004，9，4： | 2 |
| 3 | Wigner Frequency Point Slice Analysis of Superposition Data for Phased-Array Ground Penetrating Radar显示文摘According to the frequency property of Phased-array ground penetrating radar (PGPR), this paper gives a frequency point slice method based on Wigner time-frequency analysis. This method solves the problem of analysis for the PGPR’s superposition data and makes detecting outcome simpler and detecting target more recognizable. At last, the analytical results of road test data of the Three Gorges prove the analytical method efficient. | ZOULian CHENShu-zhen YANGShen WEIDan XIAOBo-xun | 2004 | Wuhan University Journal of Natural Sciences2004，9，6： | 2 |
| 4 | Application of ERS-1 scatterometer data to studying land surfaces ──Distributive characteristic of backscattering coefficient over China land surfaces显示文摘ERS 1 WSC data were obtained by international cooperation. The distributive characteristics of radar backscattering coefficient image of China land surface are analyzed and the research results are presented. The capability of ERS 1 WSC data for monitoring land surfaces is investigated. The results show that the radar backscattering coefficient images can reveal the natural landform features of China land. Using the WSC data can discriminate six types of major land coverage, including evergreen vegetation and snow covered region, vegetation and crops, mountains, grassland, desert and grassland, desert. On the whole, the radar backscattering coefficient image of China land is the synthesis of the vegetation map and terrain map. Statistical study of the typical terrain shows that the radar backscatter coefficients of China land range from -29 dB to -5 dB. The lowest value corresponds to the deserts of Badain Jaran, Takla Makan, and Tengger. The highest value corresponds to snow covered regions of Himalaya Mountains and Tianshan Mountains. | WANG Xiangyun 1, WANG Chao 2, GUO Huadong 2 and SHI Yangshen 1 1. Department of Earth Sciences, Nanjing University, Nanjing 210093, China 2. Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China | 1998 | Chinese Science Bulletin1998，43，23： | 1 |
| 5 | The building of south China: collision of Yangzi and Cathaysia blocks, problems and tentative answers显示文摘 | Jacques Charvet Liangshu Shu Yangshen Shi Lingzhi Guo Michel Faure | 1996 | Journal of Southeast Asian Earth Sciences1996，，3： | 1 |
| 6 | A particle swarm optimization algorithm based on simulated annealing显示文摘 | YAN Zichao LUO Yangshen | 2014 | Advanced Materials Research2014，989，1： | 1 |
| 7 | THERMAL STRUCTURE OF THELITHOSPHERE IN GEOSCIENCE TRANSECT OF LINGBI-FENGXIAN(HQ-13),EAST CHINA显示文摘 | Li Cheng Wang Liangshu and Shi Yangshen (Department of Earth Sciences Nanjing University Nanjing 210093) | 1995 | Scientia Geologica Sinica1995，，03： | 1 |
| 8 | Leather waste as precursor to prepare bifunctional catalyst for alkaline and neutral zinc-air batteries显示文摘Carbon materials derived from biomass waste are considered as potential electrocatalysts for applications in zinc-air batteries(ZABs)due to their low cost and good catalytic activity.Here,we reported the preparation of gel-based catalysts through utilizing hydrolyzed waste leather powder cross-linked with metallic salt solutions.After calcination,iron-nickel alloy anchored in nitrogen-doped porous carbon catalysts(Fe Ni@NDC)was achieved.Compared with commercial Pt/C catalyst,Fe Ni@NDC-800 exhibited lower E_(1/2)(0.77 V)and better durability.More importantly,the resulting Fe Ni@NDC-800-based alkaline ZABs achieved power density of 93.01 m W/cm^(2) and open circuit voltage of 1.45 V,which the Fe Ni@NDC-800-based neutral ZAB displayed a charge/discharge cycle stability of 275 h.This work opens up the possibility of rational design and preparation of low-cost and high-performance electrocatalysts from recyclable leather waste. | Zeyu Zhu Jing Zhu Yangshen Chen Xinxin Liu Mengchun Zhang Mengxiao Yang Mengyu Liu Jiansheng Wu Sheng Li Fengwei Huo | 2023 | Chinese Chemical Letters2023，34，6： | 1 |
| 9 | Carbon Nanotube Array/Polymer Core/Shell Structured Composites with High Dielectric Permittivity, Low Dielectric Loss, and Large Energy Density显示文摘 | HaiyangLiu YangShen YuSong Ce‐WenNan YuanhuaLin XiaopingYang | 2011 | Adv. Mater2011，，： | 1 |
| 10 | The pre-Devonian tectonic patterns and evolution of South China 显示文摘 | Guo Lingzhi Shi Yangshen Lu Huafeng | 1989 | Journal of Southeast Asian Earth Science1989，3，14： | 1 |
| 11 | Relative dielectric constant from dry rocks显示文摘Relative dielectric constant is an important physical factor in the theory of microwave remote sensing and electromagnetic transmission. This note reports the results of detecting relative dielectric constant from 197 rock samples. The regular pattern of the relative dielectric constant varying with microwave spectrum is revealed. The relative dielectric constants, correlated with the type, density, structure and chemical component of the rock, are discussed. The re- | Xiangyun Wang Huadong Guo Chao Wang Peirong Chen Yangshen Shi | 1999 | Chinese Science Bulletin1999，44，24： | 0 |
| 12 | 基于SFA辽宁省行业产能利用率测算及影响因素研究显示文摘深入研究产能利用问题,有利于深刻认识区域产能利用现状、发展趋势以及影响因素,对于产业结构升级和制定区域发展规划具有重要意义。利用辽宁省2001—2016年27个行业的相关投入产出数据,通过SFA模型测算27个行业的产能利用率以及影响因素,并提出相关对策建议。 | 杨晓彤 姜磊 张发东 Lin Yangshen | 2018 | 对外经贸2018，，10： | 0 |
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