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High performance flexible energy storage device based on copper foam supported NiMoO4 nanosheets-CNTs-CuO nanowires composites with core–shell holey nanostructure

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Journal of Materials Science & Technology 2021年第26期85卷 87-94页

作者： Pingping Yao chenyang Li jiali Yu Shuo zhang Meng zhang Huichao Liu Muwei ji Guangtao Cong Tao zhang Caizhen Zhu jian Xu Institute of Low-dimensional Materials Genome Initiative College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060China Research Institute of Tsinghua University in Shenzhen ShenZhen518057China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing100084China

Because of the intensified electrochemical activities,mixed metal oxides as a representative for pseudocapacitive materials play a key role for high performance supercapacitor ***,low ion and electron transfer rate and poor cycling performance in the electrode practically restrict further promotion of their electrochemical *** order to offset the defect,a novel copper(Cu)foamsupported nickel molybdate nanosheet decorated carbon nanotube wrapped copper oxide nanowire array(NiMoO4 NSs-CNTs-CuO NWAs/Cu foam)flexible electrode is *** as-prepared electrode demonstrates a unique core-shell holey nanostructure with a large active surface area,which can provide a large number of active sites for redox ***,the CNTs networks supply improved conductivity,which can hasten electron *** this simple and efficient design method,the spatial distribution of each component in the flexible electrode is more orderly,short and fast electron transport path with low intrinsic *** a result,the NiMoO4 NSs-CNTs-CuO NWAs/Cu foam as an adhesiveless supercapacitor electrode material exhibits excellent ene rgy storage perfo rmance with high specific areal capacitance of 23.40 F cm^(-2)at a current density of 2 mA cm^(-2),which outperforms most of the flexible electrodes re ported *** assembled asymmetric supercapacitor demonstrates an energy density up to 96.40 mW h cm^(-3)and a power density up to 0.4 W cm^(-3)under a working voltage window of 1.7 *** addition,outstanding flexibility of up to 100°bend and good cycling stability with the capacitance retention of 82.53%after 10,000 cycles can be obtained.

关键词： Supercapacitor Binary metal oxide Flexible electrode Pseudocapacitive material Core-shell nanostructure

HUSS:A Heuristic Method for Understanding the Semantic Structure of Spreadsheets

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Data Intelligence 2023年第3期5卷 537-559页

作者： Xindong Wu Hao Chen chenyang Bu Shengwei ji Zan zhang Victor S.Sheng Key Laboratory of Knowledge Engineering with Big Data(the Ministry of Education of China) Hefei University of TechnologyChinaSchool of Computer Science and Information EngineeringHefei University of TechnologyHefeiChina Research Institute of Artificial Intelligence Zhejiang LabHangzhouChina Department of Computer Science Texas Tech UniversityLubbockTX 79409USA

Spreadsheets contain a lot of valuable data and have many practical *** key technology of these practical applications is how to make machines understand the semantic structure of spreadsheets,e.g.,identifying cell function types and discovering relationships between cell *** existing methods for understanding the semantic structure of spreadsheets do not make use of the semantic information of cells.A few studies do,but they ignore the layout structure information of spreadsheets,which affects the performance of cell function classification and the discovery of different relationship types of cell *** this paper,we propose a Heuristic algorithm for Understanding the Semantic Structure of spreadsheets(HUSS).Specifically,for improving the cell function classification,we propose an error correction mechanism(ECM)based on an existing cell function classification model[11]and the layout features of *** improving the table structure analysis,we propose five types of heuristic rules to extract four different types of cell pairs,based on the cell style and spatial location *** experimental results on five real-world datasets demonstrate that HUSS can effectively understand the semantic structure of spreadsheets and outperforms corresponding baselines.

关键词： Spreadsheet semantic structure Information extraction Heuristics Cell function analysis Table structure analysis

Filamentous morphology engineering of bacteria by iron metabolism modulation through MagR expression

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Synthetic and Systems Biotechnology 2024年第3期9卷 522-530页

作者： Mengke Wei chenyang Han Xiujuan Zhou Tianyang Tong jing zhang Xinmiao ji Peng zhang Yanqi zhang Yan Liu Xin zhang Tiantian Cai Can Xie Institutes of Physical Science and Information Technology Anhui UniversityHefeiAnhui230039China High Magnetic Field Laboratory Hefei Institutes of Physical ScienceChinese Academy of SciencesScience IslandHefeiAnhui230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefeiAnhui230036China Department of Anatomy Anhui Medical UniversityHefeiAnhui230032China Institute of Quantum Sensing Zhejiang UniversityHangzhouZhejiang310027China

The morphology is the consequence of evolution and *** coli is rod-shaped bacillus with regular dimension of about 1.5μm long and 0.5μm *** shape-related genes have been identified and used in morphology engineering of this ***,little is known about if specific metabolism and metal irons could modulate bacteria *** in this study,we discovered filamentous shape change of *** cells overexpressing pigeon MagR,a putative magnetoreceptor and extremely conserved iron-sulfur *** transcriptomic analysis strongly suggested that the iron metabolism change and iron accumulation due to the overproduction of MagR was the key to the morphological *** model was further validated,and filamentous morphological change was also achieved by supplement *** cells with iron in culture medium or by increase the iron uptake genes such as entB and *** study extended our understanding of morphology regulation of bacteria,and may also serves as a prototype of morphology engineering by modulating the iron metabolism.

关键词： Morphology regulation Iron accumulation Filamentous bacteria MagR overexpression

PhGRL2 Protein, Interacting with PhACO1, Is Involved in Flower Senescence in the Petunia

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Molecular Plant 2014年第8期7卷 1384-1387页

作者： Yinyan Tan, Juanxu Liu, Fang Huang, jiefu Guan, Shan Zhong, Na Tang, ji Zhao, Weiyuan Yang yixun Yu College of Horticulture South China Agricultural University Guangzhou 510642 China

Dear Editor, The pathways of ethylene biosynthesis and signaling have been studied in detail （ji and Guo, 2013）. Arabidopsis REVERSION-TO-ETHYLENE SENSITIVITY1 （RTE1）, interacting with ETR1, and its homologs tomato GREEN RIPE （SlGR） and SlGRL1, and rice OsRTH1 negatively regulate the ethylene signaling （Barry and Giovannoni, 2006, Resnick et al., 2006; Dong et al., 2010; zhang et al., 2012）. A newly published study suggested that a cytochrome b5 and RTE1 are functional partners in promoting ETRl-mediated repression of ethylene signaling in Arabidopsis （Chang et al., 2014）. However, AtRTH, RTE1 homolog in Arabidopsis, and its closest homolog in the tomato, SlGRL2 （GR-like2）, do not play a role in ethylene signaling （Dong et al., 2010）, and the function of the homologs of these members is not well known.

关键词： PLANT proteins ETHYLENE CELLULAR aging PETUNIAS PLANT gene expression MAGNOLIOPSIDA

Taming heat with tiny pressure

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The Innovation 2024年第2期5卷 70-78页

作者： Kun zhang Zhe zhang Hailong Pan Haoyu Wang Xueting Zhao ji Qi Zhao zhang Ruiqi Song chenyang Yu Biaohong Huang Xujing Li Huaican Chen Wen Yin Changlong Tan Weijin Hu Michael Wüubbenhorst jiangshui Luo Dehong Yu Zhidong zhang Bing Li Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Laboratory for Soft Matter and Biophysics Department of Physics and AstronomyKU Leuven3001 LeuvenBelgium Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China College of Materials Science and Engineering Sichuan UniversityChengdu 610064China School of Materials Science and Chemical Engineering Harbin University of Science and TechnologyHarbin 150080China Australian Nuclear Science and Technology Organisation Lucas HeightsNSW 2234Australia

Heat is almost *** electricity,which can be easily manipulated,the current ability to control heat is still highly limited owing to spontaneous thermal dissipation imposed by the second law of *** illumination and pressure have been used to switch endothermic/exothermic responses of materials via phase transitions;however,these strategies are less cost-effective and ***,we spectroscopically demonstrate the glassy crystal state of 2-amino-2-methyl-1,3-propanediol(AMP)to realize an affordable,easily manageable approach for thermal energy *** supercooled state of AMP is so sensitive to pressure that even several megapascals can induce crystallization to the ordered crystal,resulting in a substantial temperature increase of 48 K within 20 ***,we demonstrate a proof-of-concept device capable of programable heating with an extremely high work-to-heat conversion effi-ciency of*** delicate and efficient tuning of heat may remarkably facilitate rational utilization of waste heat.

关键词： illumination thermal rational

Generation of a Hutchinson-Gilford progeria syndrome monkey model by base editing

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Protein & Cell 2020年第11期11卷 809-824页

作者： Fang Wang Weiqi zhang Qiaoyan Yang Yu Kang Yanling Fan jingkuan Wei Zunpeng Liu Shaoxing Dai Hao Li Zifan Li Lizhu Xu Chu Chu jing Qu chenyang Si Weizhi ji Guang-Hui Liu Chengzu Long Yuyu Niu Yunnan Key Laboratory of Primate Biomedical Research Institute of Primate Translational MedicineKunming University of Science and TechnologyKunming 650500China Faculty of Life Science and Technology Kunming University of Science and TechnologyKunming 650500China Institute for Stem Cell and Regeneration Chinese Academy of ScienceBeijing 100101China CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of SciencesBeijing 100101China China National Center for Bioinformation Beijing 100101China University of Chinese Academy of Sciences Beijing 100049China The Leon H Charney Division of Cardiology New York University School of MedicineNew YorkNY 10016USA State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric DisordersXuanwu Hospital Capital Medical UniversityBeijing 100053China Department of Neuroscience and Physiology New York University School of MedicineNew YorkNY 10016USA Department of Neurology New York University School of MedicineNew YorkNY 10016USA

Many human genetic diseases,including Hutchinson-Gilford progeria syndrome(HGPS),are caused by single point *** is a rare disorder that causes premature aging and is usually caused by a de novo point mutation in the LMNA *** editors(BEs)composed of a cytidine deaminase fused to CRISPR/Cas9 nickase are highly efficient at inducing C to T base conversions in a programmable manner and can be used to generate animal disease models with single amino-acid ***,we generated the first HGPS monkey model by delivering a BE mRNA and guide RNA(gRNA)targeting the LMNA gene via microinjection into monkey *** out of six newborn monkeys carried the mutation specifically at the target *** monkeys expressed the toxic form of lamin A,progerin,and recapitulated the typical HGPS phenotypes including growth retardation,bone alterations,and vascular ***,this monkey model genetically and clinically mimics HGPS in humans,demonstrating that the BE system can efficiently and accurately generate patient-specific disease models in non-human primates.

关键词： base editing non-human primate HGPS

Universal numerical calculation method for the Berry curvature and Chern numbers of typical topological photonic crystals

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Frontiers of Optoelectronics 2020年第1期13卷 73-88页

作者： chenyang WANG Hongyu zhang Hongyi YUAN jinrui ZHONG Cuicui LU Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of PhysicsBeijing Institute of TechnologyBeijing 100081China

Chern number is one of the most important criteria by which the existence of a topological photonic state among various photonic crystals can be judged;however,few reports have presented a universal numerical calculation method to directly calculate the Chern numbers of different topological photonic crystals and have denoted the influence of different structural ***,we demonstrate a direct and universal method based on the finite element method to calculate the Chern number of the typical topological photonic crystals by dividing the Brillouin zone into small zones,establishing new properties to obtain the discrete Chern number,and simultaneously drawing the Berry curvature of the first Brillouin *** also explore the manner in which the topological properties are influenced by the different structure types,air duty ratios,and rotating operations of the unit cells;meanwhile,we obtain large Chern numbers from–2 to ***,we can tune the topological phase change via different rotation operations of triangular dielectric *** study provides a highly efficient and simple method for calculating the Chern numbers and plays a major role in the prediction of novel topological photonic states.

关键词： Chern number topological photonic crystal finite element method symmetry

CRISPR/Cas9-mediated mutation of asparagine-linked glycosylation 13 transcript variant 1 causes epilepsy in mice

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Journal of Bio-X Research 2020年第1期3卷 6-12页

作者： Yu Baoli Zhu Geng Li Shangang Chen Xuejin Fang Qian zhang Yan Liu yixun Li Shengtian Wu ji Renji Hospital Shanghai jiaotong University School of Medicine Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education)Bio-X InstitutesShanghai Jiao Tong UniversityShanghai Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education Ningxia Medical UniversityYinchuanNingxia Hui Autonomous Region Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education) Bio-X InstitutesShanghai Jiao Tong University Department of Biomedical Engineering School of Medical InstrumentShanghai University of Medicine&Health Sciences Department of Laboratory Animal Sciences Shanghai Jiao Tong University School of MedicineShanghai Institute of Biophysics Chinese Academy of Sciences State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijingChina

Objective:The asparagine-linked glycosylation 13 homolog(Alg13)has been identified as causative for congenital disorders of glycosylation type I with *** aim of this study was to determine whether mice carrying a mutated version of Alg13 could be used as a model for epileptic encephalopathies or congenital disorders of glycosylation type ***:A model of epileptic encephalopathy was established in C57BL/6 mice by introducing mutations in Alg13 via the clustered regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9(CRISPR/Cas9)*** surgical procedures were approved by the Institutional Animal Care and Use Committee of Shanghai jiao Tong University(A2016084)on October 8,***:Mice with 3 different mutations,Alg13^(-54nt),Alg13^(-5nt)and Alg13^(-4nt),all of which are located in Alg13 transcript variant 1,were *** Alg13^(-5nt)mice exhibited spontaneous seizures similar to patients with Alg13 mutations,suggesting that they could be used as a model for *** blot analysis demonstrated that Alg13^(-5nt)mice had lower levels of Alg13 expression than wild-type *** observations showed that two of the 17 Alg13^(-5nt)mice had stage 5 seizures involving jumping and falling,while 12 had stage 3 seizures with head ***:The Alg13 mouse model provides an outstanding tool for studying epileptic encephalopathies and investigating different aspects of defects in glycosylation or other post-translational modification that cannot be assessed in patients or cell culture systems.

关键词： Alg13 CRISPR/Cas9 epilepsy mouse mutant

The bond evolution mechanism of covalent sulfurized carbon during electrochemical sodium storage process

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Science China Materials 2019年第8期62卷 1127-1138页

作者： Tianjing Wu chenyang zhang Guoqiang Zou jiugang Hu Limin Zhu Xiaoyu Cao Hongshuai Hou Xiaobo ji Key Laboratory of Powder Metallurgy College of Chemistry and Chemical Engineering Central South University Changsha 410083 China College of Chemistry Henan University of Technology Zhengzhou 450001 China

The excellent energy storage performance of covalent sulfur-carbon material has gradually attracted great interest. However, in the electrochemical sodium storage process, the bond evolution mechanism remains an elusive topic. Herein, we develop a one-step annealing strategy to achieve a high covalent sulfur-carbon bridged hybrid(HCSC)utilizing phenylphosphinic acid as the carbon-source/catalyst and sodium sulfate as the sulfur-precursor/salt template, in which the sulfur mainly exists in the forms of C–S–C and C–S–S–C. Notably, most of the bridge bonds are electrochemically cleaved when the cycling voltage is lower than0.6 V versus Na/Na+, leading to the appearance of two visible redox peaks in the following cyclic voltammogram(CV) *** in-situ and ex-situ characterizations demonstrate that S^2- is formed in the reduction process and the carbon skeleton is concomitantly and irreversibly isomerized. Thus, the cleaved sulfur and isomerized carbon could jointly contribute to the sodium storage in 0.01–3.0 V. In a Na-S battery system, the activated HCSC in cut off voltage window of 0.6–2.8 V achieves a high reversible capacity(770 mA h g^-1 at 300 mA g^-1). This insight reveals the charge storage mechanism of sulfur-carbon bridged hybrid and provides an improved enlightenment on the interfacial chemistry of electrode materials.

关键词： one-step method sulfur-carbon bridged complex electrochemical mechanism sodium storage