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| 1 | Annual cost of illness of stomach and esophageal cancer patientsin urban and rural areas in China: A multi-center study显示文摘Objective: Stomach and esophageal cancer are imposing huge threats to the health of Chinese people whereas there were few studies on the financial burden of the two cancers.Methods: Costs per hospitalization of all patients with stomach or esophageal cancer discharged between September 2015 and August 2016 in seven cities/counties in China were collected, together with their demographic information and clinical details. Former patients in the same hospitals were sampled to collect information on annual direct non-medical cost, indirect costs and annual number of hospitalization. Annual direct medical cost was obtained by multiplying cost per hospitalization by annual number of hospitalization. Annual cost of illness(ACI)was obtained by adding the average value of annual direct medical cost, direct non-medical cost and indirect cost,stratified by sex, age, clinical stage, therapy and pathologic type in urban and rural areas. Costs per hospitalization were itemized into eight parts to calculate the proportion of each part. All costs were converted to 2016 US dollars(1 USD=6.6423 RMB).Results: Totally 19,986 cases were included, predominately male. Mean ages of stomach cancer and urban patients were lower than that of esophageal cancer and rural patients. ACI of stomach and esophageal cancer patients were $10,449 and $13,029 in urban areas, and $2,927 and $3,504 in rural areas, respectively. Greater ACI was associated with male, non-elderly patients as well as those who were in stage I and underwent surgeries.Western medicine fee took the largest proportion of cost per hospitalization.Conclusions: The ACI of stomach and esophageal cancer was tremendous and varied substantially among the population in China. Preferential policies of medical insurance should be designed to tackle with this burden and further reduce the health care inequalities. | Zhixun Yang Hongmei Zeng Ruyi Xia Qian Liu Kexin Sun Rongshou Zheng Siwei Zhang Changfa Xia He Li Shuzheng Liu Zhiyi Zhang Yuqin Liu Guizhou Guo Guohui Song Yigong Zhu Xianghong Wu Bingbing Song Xianzhen Liao Yanfang Chen Wenqiang Wei Guihua Zhuang Wanqing Chen | 2018 | Chinese Journal of Cancer Research2018，30，4： | 22 |
| 2 | CMIP6和CMIP5模式对中国极端温度的模拟能力的评估显示文摘本文评估了CMIP5和CMIP6模式对中国在1979-2005年期间的极端温度的模拟性能。结果表明:CMIP6模式可以很好地再现年最大日最高气温,年最小日最低气温和霜冻日数的空间分布特征。对于年最大日最高气温,持续暖日日数和暖昼,CMIP6模式间的不确定性相对于CMIP5模式有所降低。并且,CMIP6模式也能表现出观测到的极端温度的趋势。然而,CMIP6模式再现暖昼和冷夜的能力仍然不足,特别是在青藏高原上存在明显的冷偏差或者暖偏差对于某些指数。单个CMIP6或CMIP5模式的模拟能力就不同的指数而有所不同,某些模式的模拟能力较为突出。对于一些来自同一机构不同版本的模式,改进的CMIP6模式与CMIP5模式的模拟结果没有明显差异。多模式中位数平均的模拟效果优于大多数单个模式。 | LUO Neng GUO Yan GAO Zhibo CHEN Kexin CHOU Jieming | 2020 | Atmospheric and Oceanic Science Letters2020，13，6： | 15 |
| 3 | Application of deep learning in ecological resource research:Theories, methods, and challenges显示文摘Ecological resources are an important material foundation for the survival,development,and self-realization of human beings.In-depth and comprehensive research and understanding of ecological resources are beneficial for the sustainable development of human society.Advances in observation technology have improved the ability to acquire long-term,cross-scale,massive,heterogeneous,and multi-source data.Ecological resource research is entering a new era driven by big data.Traditional statistical learning and machine learning algorithms have problems with saturation in dealing with big data.Deep learning is a method for automatically extracting complex high-dimensional nonlinear features,which is increasingly used for scientific and industrial data processing because of its ability to avoid saturation with big data.To promote the application of deep learning in the field of ecological resource research,here,we first introduce the relationship between deep learning theory and research on ecological resources,common tools,and datasets.Second,applications of deep learning in classification and recognition,detection and localization,semantic segmentation,instance segmentation,and graph neural network in typical spatial discrete data are presented through three cases:species classification,crop breeding,and vegetation mapping.Finally,challenges and opportunities for the application of deep learning in ecological resource research in the era of big data are summarized by considering the characteristics of ecological resource data and the development status of deep learning.It is anticipated that the cooperation and training of cross-disciplinary talents may promote the standardization and sharing of ecological resource data,improve the universality and interpretability of algorithms,and enrich applications with the development of hardware. | Qinghua GUO Shichao JIN Min LI Qiuli YANG Kexin XU Yuanzhen JU Jing ZHANG Jing XUAN Jin LIU Yanjun SU Qiang XU Yu LIU | 2020 | Science China Earth Sciences2020，63，10： | 7 |
| 4 | Metal-organic framework-derived Fe/Cu-substituted Co nanoparticles embedded in CNTs-grafted carbon polyhedron for Zn-air batteries显示文摘Metal-organic frameworks(MOFs)and MOF-derived materials have attracted great attention as alternatives to noble-metal based electrocatalysts owing to their intriguing structure properties,especially for high efficiency and stable oxygen reduction reaction(ORR).Herein,we employed a one-pot reaction to make a multimetal(Fe,Co,Cu,and Zn)mixed zeolitic imidazolate framework(MM-ZIF)via adopting a simple in situ redox reaction.Further pyrolysis of the target MM-ZIF,a highly porous carbon polyhedron(FC-C@NC)grafted with abundant carbon nanotubes was obtained,in which ultrasmall Co nanoparticles with partial lattice sites substituted by Fe and Cu were embedded.The obtained FC-C@NC possessed large surface area,highly porous structure,widely-spread metal active sites,and conductive carbon frameworks,contributing to outstanding ORR activity and long-term stability.It displayed superior tolerance to methanol crossover and exceeded the commercial Pt/C catalyst and most previously reported non-noble-metal catalysts.Impressively,the as-produced FC-C@NC-based zinc-air battery afforded an open-circuit potential of 1.466 V,a large specific capacity of 659.5 mAh/g,and a high gravimetric energy density of 784.3 Wh/kgZn,significantly outperforming the Pt/C-based cathode. | Kexin Zhang Yelong Zhang Qinghua Zhang Zibin Liang Lin Gu Wenhan Guo Bingjun Zhu Shaojun Guo Ruqiang Zou | 2020 | Carbon Energy2020，2，2： | 7 |
| 5 | Metal-organic framework based nanomaterials for electrocatalytic oxygen redox reaction显示文摘Due to the severe environmental issues, many advanced technologies, typically fuel cells and metal-air batteries have aroused widespread concerns and been intensively studied in recent years. However, oxygen redox reactions including oxygen evolution reaction(OER) and oxygen reduction reaction(ORR) as the core reactions suffer from sluggish kinetics of the multiple electron transfer process. Currently, Pt, RuO_2, and IrO_2 are considered to be the benchmark catalysts for ORR and OER, but their high price, scarcity and instability hinder them from large-scale application. To overcome these limits, exploring alternative electrocatalysts with low cost, high activity, long-term stability, and earth-abundance is of extreme urgency. Metal-organic frameworks(MOFs) are a family of inorganic-organic hybrid materials with high surface areas and tunable structures, making them proper as catalyst candidates. Herein, the recent progress of MOFs and MOF-derived materials for ORR and OER is systematically reviewed, and the relationship between compositions and electrochemical performance is discussed. It is expected that this review can be helpful for the future development of related MOF-based materials with excellent electrochemical performance. | Kexin Zhang Wenhan Guo Zibin Liang Ruqiang Zou | 2019 | Science China Chemistry2019，62，4： | 6 |
| 6 | Surveillance on the Immune Effectiveness of Quadrivalent and Trivalent Split Influenza Vaccines—Shenzhen City and Changzhou City,China,2018–2019显示文摘Summary What is already known about this topic?Vaccinations are the most effective way to prevent influenza virus infections and severe outcomes.Influenza vaccine effectiveness can vary by seasons.What is added by this report?This report monitors the antibody level among the population over time after administration of the quadrivalent or trivalent split influenza vaccine.What are the implications for public health practice?Real-time monitoring of serum antibody changes after vaccination provides important data for the development of reasonable and effective strategies for influenza prevention and control. | Liumei Shu Jie Zhang Xiang Huo Cong Chen Shisong Fang Kexin Zong Yuanyuan Guo Yingze Zhao Jun Zhang Changjun Bao Junjie Xia Fengcai Zhu Dayan Wang Guizhen Wu George F.Gao William J.Liu | 2020 | China CDC weekly2020，2，21： | 5 |
| 7 | The Model Identification for Small Unmanned Aerial Rotorcraft Based on Adaptive Ant Colony Algorithm显示文摘 | Xusheng Lei Kexin Guo | 2012 | Journal of Bionic Engineering2012，9，4： | 5 |
| 8 | Simultaneous cooperative relative localization and distributed formation control for multiple UAVs显示文摘Dear editor,In recent years,formation control of multiple unmanned aerial vehicles(UAVs)has been widely studied[1].As a motion control strategy,it aims to realize UAV swarms with many practical applications such as surveillance,rescue and inspection in complex environments,especially in GPSdenied environments.Formation flights have been demonstrated by many researchers,but most still rely on some external positioning systems such as GPS,motion tracking systems,and radio-based positioning systems.However,these infrastructure dependent systems require careful configuration(e.g.,the deployment of anchor nodes)and their operation areas are strictly limited.Moreover,in cluttered urban environments,GPS is unreliable.To get rid of the dependence on external infrastructures,Ref.[2]studied the distancebased formation by using inter-UAV range measurements,but the experiment reported was still GPS dependent. | Kexin GUO Xiuxian LI Lihua XIE | 2020 | Science China(Information Sciences)2020，63，1： | 3 |
| 9 | Apparent ages of suspended sediment and soil erosion of the Pearl River (Zhujiang) drainage basin显示文摘The carbon isotopic composition (Δ 14 C,δ 13 C) and apparent ages of suspended sediment were determined in the Pearl River in the years 1998,2000 and 2005.These results indicate that suspended POC consists mostly of young carbon and some 'old carbon'.Apparent ages of suspended POC range from 540 to 2050 a BP.The apparent ages are older in the Xijiang and Beijiang Rivers,while these values are variable in the Dongjiang River,including old and young samples.The suspended POCδ 13 C values increase with increasing Δ 14 C in the Pearl River,indicating that its source is soil and bedrock from depths under 15 30 cm.Since the organic carbon of the surface soil is quickly decomposed when it enters the rivers,its carbon isotopic characteristics are insignificant in suspended sediment.In the Pearl River drainage basin,there are areas with more severe soil erosion than others.For example,erosion is much more severe in the Xijiang River drainage basin when compared to the light soil erosion in the Dongjiang River drainage basin. | WEI XiuGuo SHEN ChengDe LI NingLi WANG FuShun DING Ping WANG Ning GUO ZhiXing LIU KeXin | 2010 | Chinese Science Bulletin2010，55，15： | 2 |
| 10 | Catalytic synthesis of diphenolic acid from levulinic acid over cesium partly substituted Wells-Dawson type heteropolyacid显示文摘 | Yu Xiaodan Guo Yihang Li Kexin | | Journal of Molecular Catalysis A:Chemical0，，： | 1 |
| 11 | One-step fabrication of mesoporous sulfur-doped carbon nitride for highly selective photocatalytic transformation of native lignin to monophenolic compounds显示文摘Photocatalytic selective transform native lignin into valuable chemicals is an attractive but challenging task.Herein,we report a mesoporous sulfur-doped carbon nitride(MSCN-0.5)which is prepared by a facile one-step thermal condensation strategy.It is highly active and selective for the cleavage Cα-Cβbond inβ-O-4 lignin model compound under visible light radiation at room temperature,achieving 99%substrate conversion and 98%Cα-Cβbond cleavage selectivity.Mechanistic studies revealed that the Cβ-H bond of lignin model compounds activated by holes and generate key Cβradical intermediates,further induced the Cα-Cβbond cleavage by superoxide anion radicals(·O2-)to produce aromatic oxygenates.Waste Camellia oleifera shell(WCOS)was taken as a representative to further understand the reaction mechanisms on native lignin.33.2 mg of monophenolic compounds(Vanillin accounted for 22%and Syringaldehyde for 34%)can be obtained by each gram of WCOS lignin,which is 2.5 times as that of the pristine carbon nitride.The present work offers useful guidance for designing metal-free heterogeneous photocatalysts for Cα-Cβbond cleavage to harvest monophenolic compounds. | Conghao Ku Huiqin Guo Kexin Li Qiong Wu Liushui Yan | 2023 | Chinese Chemical Letters2023，34，1： | 1 |
| 12 | AMS radiocarbon dating of the Fengxi site in Shaanxi, China显示文摘 | Guo Zhiyu Liu Kexin Yuan Sixun | 2005 | Radiocarbon2005，47，2： | 1 |
| 13 | Combustion Synthesis of Ternary Carbide Ti3AlC2 in Ti-Al-C System显示文摘 | Ge Zhenbin Chen Kexin Guo Junming | 2003 | Journal of the European Ceramic Society2003，23，： | 1 |
| 14 | 显示文摘 | Ge Zhenbin Chen kexin Guo Junming | 2003 | Journal of the European Ceramic Society2003，23，： | 1 |
| 15 | Combustion synthesis of ternary Ti3 AlC2 in Ti-Al-C system显示文摘 | Ge Zhenbin Chen Kexin Guo Junming | 2003 | Journal of the European Ceramic Society2003，23，： | 1 |
| 16 | Combustion synthesis of ternary carbide Ti 3 AlC 2 in Ti–Al–C system显示文摘 | Zhenbin Ge Kexin Chen Junming Guo Heping Zhou José M.F Ferreira | 2002 | Journal of the European Ceramic Society2002，，3： | 1 |
| 17 | Combustion syn-thesis of ternary carbide Ti3AlC2 in Ti-Al-C system显示文摘 | Ge Zhenbin Chen Kexin Guo Junming | 2003 | Journal of the European Ceramic Society2003，23，： | 1 |
| 18 | Layered growth of Ti 2 AlC and Ti 3 AlC 2 in combustion synthesis显示文摘 | Guanghua Liu Kexin Chen Heping Zhou Junming Guo Kegang Ren J.M.F. Ferreira | 2006 | Materials Letters2006，，3： | 1 |
| 19 | Combustion synthesis of ternary carbide in the Ti- Al -C system显示文摘 | CHEN Kexin GUO Junming | 2003 | J Eur Ceram Soc2003，23，： | 1 |
| 20 | A novel route for preparing Ti3AlC2 ceramics显示文摘 | GUO Junming GE Zhenbin | 2002 | Rare Metal Mater Eng2002，31，3： | 1 |
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