4篇
您的检索式：作者名="ZHOU Junchi"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Room-temperature ligancy engineering of perovskite electrocatalyst for enhanced electrochemical water oxidation显示文摘Perovskite oxides are significant candidates to develop electrochemical catalysts for water oxidation in consideration of their high catalysis capacity,low costing and excellent stability.Rational design of coordination structure and overcoming poor electronic transport are regarded as critical factors for outstanding perovskite-based oxygen evolution reaction (OER) catalysts.Herein,we report a mild chemical oxidation method to realize ligancy engineering from strongly-correlated brownmillerite Sr2Co2O5 to perovskite phase Sr2Co2O5.5,along with abundant oxygen vacancies formation and greatly boosted electric conductivity,which helps to form the active species of Co hydroxide/oxide on the surface of catalysts.The coupling effect of catalytic kinetics and unimpeded electronic movement brings high OER activities in Sr2Co2O5.5 with a low onset potential and a small Tafel slope.Our work not only displays in-depth understanding into the relationship among catalysis performance and multiple physical degrees of freedom,but also paves a new path to develop high-efficient electrochemical catalysts. | Junchi Wu Yuqiao Guo Haifeng Liu Jiyin Zhao Haodong Zhou Wangsheng Chu Changzheng Wu | 2019 | Nano Research2019，12，9： | 4 |
| 2 | Increased winter-spring precipitation from the last glaciation to the Holocene inferred from a δ^(13)C_(org) record from Yili Basin(Xinjiang, NW China)显示文摘The nature and dynamics of climate change in central Asia since the late Pleistocene are controversial. Moreover,most of the published studies focus mainly on the evolution of moisture conditions, and there have been few attempts to address changes in seasonality. In this study, records of δ^(13)C_(org), TOC, TN, C/N and grain size were obtained from lacustrine sediments at Yili Basin, Xinjiang, NW China. Our aim was to reconstruct the trend in seasonality of precipitation from the last glaciation to the Holocene. The organic matter content of the sediments is derived predominantly from terrestrial plants. The δ^(13)C_(org)values vary from-19.4‰ to-24.8‰, indicating that the vegetation was dominated by C_3 plants. Winter-spring precipitation is identified as the factor determining the relative proportions of C_3 and C_4 plants in the region. A negative trend in δ^(13)C_(org)corresponding to an increase in the relative abundance of C_3 plants indicate a trend of increasing winter-spring precipitation from the last glaciation to the Holocene. The increased incidence of wintertime storms in the interior of Asia is suggested to result in the increase of winterspring precipitation in the Holocene. | Keliang ZHAO Xiaoqiang LI Hai XU Xingying ZHOU John DODSON Junchi LIU | 2019 | Science China Earth Sciences2019，62，7： | 1 |
| 3 | Ginkgo biloba extract protects against depression-like behavior in mice through regulating gut microbial bile acid metabolism显示文摘Depression is a mental disorder with high morbidity,disability and relapse rates.Ginkgo biloba extract(GBE),a traditional Chinese medicine,has a long history of clinical application in the treatment of cerebral and mental disorders,but the key mechanism remains incompletely understood.Here we showed that GEB exerted anti-depressant effect in mice through regulating gut microbial metabolism.GBE protected against unpredictable mild stress(UMS)-induced despair,anxiety-like and social avoidance behavior in mice without sufficient brain distribution.Fecal microbiome transplantation transmitted,while antibiotic cocktail abrogated the protective effect of GBE.Spatiotemporal bacterial profiling and metabolomics assay revealed a potential involvement of Parasutterella excrementihominis and the bile acid metabolite ursodeoxycholic acid(UDCA)in the effect of GBE.UDCA administration induced depression-like behavior in mice.Together,these findings suggest that GBE acts on gut microbiome-modulated bile acid metabolism to alleviate stress-induced depression. | ZHOU Junchi FAN Qilin CAI Xiaoying ZHANG Youying HOU Yuanlong CAO Shuqi LIZiguang FENG Mengzhen WANG Qingqing ZHANG Jianbing WANG Guangi ZHENG Xiao HAO Haiping | 2023 | Chinese Journal of Natural Medicines2023，21，10： | 0 |
| 4 | Efficient middlebox scaling for virtualized intrusion prevention systems in software-defined networks显示文摘Dear editor,An intrusion prevention system(IPS)[1]is an important security function that detects and filters out the detected anomaly data traffic in networks.Currently,network function virtualization(NFV)[2]is able to virtualize IPSes as virtualized IPS(VIPS)[3]by encapsulating security functions in software-based middleboxes that can be elastically scaled to deal with traffic volume variations[4,5]. | Junchi XING Chunming WU Haifeng ZHOU Qiumei CHENG Danrui YU Mayra MACAS | 2022 | Science China(Information Sciences)2022，65，8： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员