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Lattice water fuels acidic water oxidation

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Science China Chemistry 2024年第7期67卷 2132-2133页

作者： Minyue Zhao Jianyong Feng zhaosheng Li Zhigang Zou Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China Jiangsu Key Laboratory for Nano Technology Nanjing UniversityNanjing 210093China

In comparison to commercial alkaline water electrolysis technologies,proton-exchange membrane water electrolyzers(PEMWEs)offer intriguing advantages for hydrogen production,such as high current density,compact system ... 详细信息

关键词： Lattice alkaline system

Geochemical Characteristics and Hydrocarbon Generation Modeling of the Paleocene Source Rocks in the Jiaojiang Sag,East China Sea Basin

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Journal of Earth Science 2024年第2期35卷 642-654页

作者： Chuang Lei Shiyan Yin Jiaren Ye Jingfu Wu zhaosheng Wang Bin Gao Collaborative Innovation Center of Green Development and Ecological Restoration of Mineral Resources North China University of Science and TechnologyTangshan063210China Key Laboratory of Tectonics and Petroleum Resources China University of GeosciencesMinistry of EducationWuhan430074China CNOOC Research Institute Ltd Beijing100028China

Jiaojiang sag in the East China Sea Basin is at the earlier exploration stage,where characterizing hydrocarbon generation of source rocks is important to understand oil-gas exploration *** geochemical and basin modeling analysis,hydrocarbon generation capacity and process of the Paleocene E_(1)y,E_(1)l and E_(1)m formations were *** show that E_(1)y and E_(1)l mudstones are high-quality source rocks with Type Ⅱ kerogen,which is dominated by both aquatic organisms and terrestrial higher plants deposited in sub-reduced environment.E_(1)m mudstone interbedded with thin carbonaceous mudstone and coal is poor-quality source rock with Type Ⅲ kerogen,whose organic matter was originated from terrestrial higher plants under oxidized *** by burial and maturity histories,E_(1)y and E_(1)l source rocks experienced two hydrocarbon generation stages,which took place in the Late Paleocene and in the Middle to Late Eocene,respectively,and had high hydrocarbon generation capacity with cumulative hydrocarbon volume of 363 and 328 mg/g,respectively.E_(1)m source rock only had one hydrocarbon generation process in the Late Eocene,which had low hydrocarbon generation capacity with cumulative hydrocarbon volume of only 24 mg/*** future oil-gas exploration in the Jiaojiang sag should focus on hydrocarbon generation center and select targets in the central uplift formed before the Miocene with high-quality traps.

关键词： East China Sea Basin Jiaojiang sag source rock geochemical characteristics hydrocarbon generation basin modeling petroleum geology

An Underwater Biomimetic Robot that can Swim,Bipedal Walk and Grasp

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Journal of Bionic Engineering 2024年第3期21卷 1223-1237页

作者： Qiuxuan Wu Liwei Pan FuLin Du zhaosheng Wu XiaoNi Chi FaRong Gao Jian Wang Anton A.Zhilenkov School of Automation Hangzhou Dianzi UniversityHangzhou310018China International Joint Research Laboratory for Autonomous Robotic Systems Hangzhou310018China GEELY Automotive Institute Hangzhou Vocational and Technical CollegeHangzhou310018China Institute of Hydrodynamics and Control Processes Sankt-Petersburg Saint Petersburg State Marine Technical UniversitySankt-PetersburgRussia

In developing and exploring extreme and harsh underwater environments,underwater robots can effectively replace humans to complete *** meet the requirements of underwater flexible motion and comprehensive subsea operation,a novel octopus-inspired robot with eight soft limbs was designed and *** robot possesses the capabilities of underwater bipedal walking,multi-arm swimming,and grasping *** closely interact with the underwater seabed environment and minimize disturbance,the robot employs a cable-driven flexible arm for its walking in underwater floor through a bipedal walking *** multi-arm swimming offers a means of three-dimensional spatial movement,allowing the robot to swiftly explore and navigate over large areas,thereby enhancing its ***,the robot’s walking arm enables it to grasp and transport objects underwater,thereby enhancing its practicality in underwater environments.A simplified motion models and gait generation strategies were proposed for two modes of robot locomotion:swimming and walking,inspired by the movement characteristics of octopus-inspired multi-arm swimming and bipedal *** experimental verification,the robot’s average speed of underwater bipedal walking reaches 7.26 cm/s,while the horizontal movement speed for multi-arm swimming is 8.6 cm/s.

关键词： Underwater soft robots Underwater bipedal walking Multi-arm swimming Cable drive

Preparation and Characterization of Biobased Dehydroabietyl Polyethylene Glycol Glycidyl Ether-Grafted Hydroxyethyl Cellulose with High Emulsifying Property

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Journal of Renewable Materials 2024年第1期12卷 103-117页

作者： Zhengqing Ding Quan Yang Xinyan Yan Feng Gu Xujuan Huang zhaosheng Cai School of Chemical and Chemistry Yancheng Institute of TechnologyYancheng224051China

Dehydroabietyl polyethylene glycol glycidyl ether-grafted hydroxyethyl cellulose(HEC)polymer surfactant(DA(EO)5GE-g-HEC)was prepared using ring-opening polymerization with biobased rosin and hydroxyethyl cellulose as *** polyethylene glycol glycidyl ether(DA(EO)5GE)was formed by condensation of dehydroabietyl alcohol polyoxyethylene ether(Rosin derivative:DA(EO)5H)and *** grafting degree of DA(EO)5GE-g-HEC was manipulated by adjusting the mass ratio of HEC and DA(EO)5GE and confirmed by *** to the formula,when m(HEC)/m(DA(EO)2GE)was 1:1~1:5,the grafting rate of DA(EO)5GE in DA(EO)5GE-g-HEC varied from 34.43%to 38.33%.The surface activity and foam properties of DA(EO)5GE-g-HEC aqueous solution were *** results showed that with the increase in grafting rate,the critical micellar concentration(CMC)in aqueous solution changed from 1.28 to 0.96 g/*** results of the thermogravimetric analysis showed that the temperature range of the main stage of mass loss of DA(EO)5GE-g-HEC was 310°C~410°C,and the thermal decomposition processes of the samples with five mass ratios were *** oil in water emulsion was prepared by choosing cyclohexane as the oil phase and DA(EO)5GE-g-HEC as the *** effect of DA(EO)5GE-g-HEC mass fraction on emulsion particle size and stability was *** results suggested that when the oil-water ratio was 8:2 with 0.4%emulsifier,the emulsion droplets were the smallest in terms of particle size and were the most *** rheological test results showed that the apparent viscosity decreased with the increase in shear rate and showed a typical elastic gel phenomenon.

关键词： Rosin hydroxyethyl cellulose surfactant emulsion rheological behaviour

Slip rate and interseismic coupling along the Moxi-Shimian segment of the Xianshuihe fault, Eastern Qinghai-Xizang Plateau

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Geodesy and Geodynamics 2024年第4期15卷 338-351页

作者： Xinyu Zhao Gang Liu zhaosheng Nie Wei Xiong Wei Chen Mu Lin Dijin Wang Qi Li Jiansheng Yu Dongzhen Wang Pengfei Yu Institute of Seismology China Earthquake AdministrationWuhan 430071China Key Laboratory of Earthquake Geodesy.China Earthquake Administration Wuhan 430071China State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430077China

On September 5,2022,the Luding M6.8 earthquake occurred in the Moxi-Shimian segment of the Xianshuihe fault,coinciding with the historical ruptured zone of the 1786 Moxi *** seis-mogenic environment provides a foundation for comprehending the mechanism of the earthquake and its future *** the Moxi-Shimian segment,we establish a series of near-field Global Navigation Satellite Systems(GNsS)stations to enhance the spatial resolution of observational data for the inversion of the interseismic kinematic *** this study,with an elastic screw dislocation model con-strained by GNsS observations,the slip rate of the Moxi-Shimian segment is estimated to be 10.9±1.0 mm/yr,while the locking depth is 15.7±6.2 ***,we utilize a block-dislocation model to invert the interseismic fault coupling along the Kangding-Moxi-Shimian *** result indicates a gradual deepening of the locking depth along the section from Kangding to *** coseismic rupture of the 2022 event occurred within the high coupling regions in the Kangding-Moxi-Shimian segment,which indicates that the rupture kinematics in this event might be controlled by the interseismic *** seismic moment accumulated within the ruptured zone of the Luding earthquake since 1786 ranges in[1.42-3.40]×10^(19) N-m,which is significantly greater than the seismic moment released during the 2022 *** a result,we infer that the Luding earthquake released only a portion of the accumulated energy within the original rupture zone since 1786,indicating that the 2022 event has not caused a complete rupture in the Moxi-Shimian ***,there remains a substantial seismic hazard in this area.

关键词： Moxi-Shimian segment of Xianshuihe fault Luding earthquake Global positioning system Interseismic kinematic parameters

Production and characterization of monoclonal antibodies against grass carp CD4-1 and CD4-2

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Aquaculture and Fisheries 2024年第2期9卷 154-163页

作者： Bangjie Wang Yuting Qin zhaosheng Sun Xiaozhen Zhu Zhao Jia Kangyong Chen Danjie Liu Junya Wang Jun Zou Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources Ministry of EducationShanghai Ocean UniversityShanghai201306China International Research Center for Marine Biosciences at Shanghai Ocean University Ministry of Science and TechnologyShanghai201306China National Demonstration Center for Experimental Fisheries Science Education Shanghai Ocean UniversityShanghai201306China Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdao266071China

CD4 T helper cells are an important group of cells in the immune system of vertebrates and express CD4 receptor on the cell *** mammals,the CD4 receptor is encoded by a single copy gene,whilst in fish,two copies of cd4 genes,namely cd4-1 and cd4-2,are *** this study,the ectodomains of grass carp(Ctenopharyngodon idella,Ci)CD4-1 and CD4-2 were expressed in the *** cells and used to generate monoclonal antibodies in *** blotting,confocal microscopy and flow cytometry were performed to characterize the monoclonal *** has been shown that the CiCD4-1 and CiCD4-2 monoclonal antibodies had good specificity to react with the recombinant ectodomains of CiCD4-1 and CiCD4-2 expressed in the CHO-S cells and the native CD4 molecules of grass *** CiCD4-1 monoclonal antibody did not recognize CiCD4-2 and verse *** addition,the CD4-1 and CD4-2 monoclonal antibodies specifically recognized the CD4-1 and CD4-2 receptors expressed in the HEK293 cells and native molecules of fish ***,the percentages of lymphocytes in immune tissues of healthy fish were analyzed by flow *** was found that 17.6%of lymphocytes were CD4-1^(+)cells and 22.5%were CD4-2^(+)in the head *** the spleen,13.1%of lymphocytes were CD4-1^(+)and 18.6%were CD4-2^(+)while 7.3%of blood lymphocytes were CD4-1^(+)cells and 8.8%were CD4-2^(+)*** availability of the CD4-1 and CD4-2 monoclonal antibodies provides antibody-based tools for further elucidation of the functions of CD4 T cells in grass carp.

关键词： Grass carp CD4 Monoclonal antibodies Flow cytometry Confocal microscopy

基于Orbiter的航天器升力式再入特性仿真

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航天控制 2012年第2期30卷 75-79页

作者：董彦非谭钊胜陈晓飞南昌航空大学飞行器工程学院江西南昌330063

升力式再入是指航天器进入大气层时产生一定可控升力,对提高落点精度具有重要意义。为了研究升力式再入的动力学特性,采用Orbiter模拟器的应用程序接口,在其飞行动力学模型基础上,对航天器从低轨道升力式再入返回过程进行仿真。通过仿... 详细信息

升力式再入是指航天器进入大气层时产生一定可控升力,对提高落点精度具有重要意义。为了研究升力式再入的动力学特性,采用Orbiter模拟器的应用程序接口,在其飞行动力学模型基础上,对航天器从低轨道升力式再入返回过程进行仿真。通过仿真试验,分析热流、过载、动压等参数的变化规律,初步摸清了升力式再入的动力学特性,并对升力式再入和弹道式再入仿真结果参数进行了比较和分析,结果表明升力式再入能很好解决过载和热流峰值高的问题。

关键词：航天器升力式再入 Orbiter模拟器仿真

Human umbilical cord mesenchymal stem cells attenuate diabetic nephropathy through the IGF1R-CHK2-p53 signalling axis in male rats with type 2 diabetes mellitus

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第7期25卷 568-580页

作者： Hao ZHANG Xinshu WANG Bo HU Peicheng LI Yierfan ABUDUAINI Hongmei ZHAO Ayinaer JIEENSIHAN Xishuang CHEN Shiyu WANG Nuojin GUO Jian YUAN Yunhui LI Lei LI Yuntong YANG Zhongmin LIU zhaosheng tanG Hua WANG Department of Endocrinology Shanghai East HospitalSchool of MedicineTongji UniversityShanghai 200120China Research Center for Translational Medicine Shanghai East HospitalSchool of MedicineTongji UniversityShanghai 200120China Department of Cardiology Shanghai East HospitalSchool of MedicineTongji UniversityShanghai 200120China Department of Biochemistry and Molecular Biology School of MedicineTongji UniversityShanghai 200331China Shanghai Institute of Stem Cell Research and Clinical Translation Shanghai East HospitalShanghai 200120China Ji’an Hospital Shanghai East HospitalJi’an 343000China

diabetes mellitus(DM)is a disease syndrome characterized by chronic hyperglycaemia.A long-term high-glucose environment leads to reactive oxygen species(ROS)production and nuclear DNA *** umbilical cord mesenchymal stem cell(HUcMSC)infusion induces significant antidiabetic effects in type 2 diabetes mellitus(T2DM)***-like growth factor 1(IGF1)receptor(IGF1R)is important in promoting glucose metabolism in diabetes;however,the mechanism by which HUcMSC can treat diabetes through IGF1R and DNA damage repair remains *** this study,a DM rat model was induced with high-fat diet feeding and streptozotocin(STZ)administration and rats were infused four times with *** glucose,interleukin-6(IL-6),IL-10,glomerular basement membrane,and renal function were *** that interacted with IGF1R were determined through coimmunoprecipitation *** expression of IGF1R,phosphorylated checkpoint kinase 2(p-CHK2),and phosphorylated protein 53(p-p53)was examined using immunohistochemistry(IHC)and western blot ***-linked immunosorbent assay(ELISA)was used to determine the serum levels of 8-hydroxydeoxyguanosine(8-OHdG).Flow cytometry experiments were used to detect the surface markers of *** identification of the morphology and phenotype of HUcMSC was performed by way of oil red“O”staining and Alizarin red *** rats exhibited abnormal blood glucose and IL-6/10 levels and renal function changes in the glomerular basement membrane,increased the expression of IGF1 and ***1R interacted with CHK2,and the expression of p-CHK2 was significantly decreased in IGF1R-knockdown *** cisplatin was used to induce DNA damage,the expression of p-CHK2 was higher than that in the IGF1R-knockdown group without cisplatin *** infusion ameliorated abnormalities and preserved kidney structure and function in DM *** expression of IGF1,IGF1R,p-CHK2,and p-p53,and the level of 8-OHdG in the DM group increased sign

关键词： Insulin-like growth factor 1 receptor(IGF1R) Checkpoint kinase 2(CHK2) Protein 53(p53) Diabetes mellitus Human umbilical cord mesenchymal stem cell(HUcMSC) DNA damage repair

反讽与自由——施莱格尔反讽与克尔凯郭尔反讽关系研究

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湖南大学学报（社会科学版） 2024年第3期38卷 97-102页

作者：张照生湖南师范大学文学院湖南长沙410081 湖南理工学院中国语言文学学院湖南岳阳414006

克尔凯郭尔对施莱格尔反讽的批判呈现出他们反讽在服务对象、否决程度与主观性方面的相异。但他们反讽均是苏格拉底反讽的现代发展,是作为一种普遍原则的反讽,致力于反叛理性主义的禁锢与意识自由。他们还要诗人凭借反讽凌越形式、素材... 详细信息

克尔凯郭尔对施莱格尔反讽的批判呈现出他们反讽在服务对象、否决程度与主观性方面的相异。但他们反讽均是苏格拉底反讽的现代发展,是作为一种普遍原则的反讽,致力于反叛理性主义的禁锢与意识自由。他们还要诗人凭借反讽凌越形式、素材、写作惯性乃至创作本身,实现创制自由并导引读者解放自我。二人反讽启迪着众多现代西方作家与哲学家采取反传统写作与断片化叙事,质询与反思着自然坚实的传统和日益内化的理性主义。

关键词：施莱格尔克尔凯郭尔反讽自由

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