检索结果-南通市图书馆

维普期刊数据库

Laser assisted phase transformation of carbon-based transition metal oxide electrode for high-performance supercapacitor application

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2025年

作者： Mingzhen Xiu Jianghong Zhang Yu Lu Xun Cao Kang Huang siyu zhu Bowei Zhang Yu Liang Chunwang Zhao Junsheng Wu Yizhong Huang School of Materials Science and Engineering Nanyang Technological University Energy Research Institute Interdisciplinary Graduate Programme Nanyang Technological University Institute of Sustainability for Chemicals Energy and Environment Agency for Science Technology and ResearchSingapore Institute of Advanced Materials and Technology University of Science and Technology Beijing School of Materials Science and Technology Shenyang University of Chemical Technology School of Materials Science and Hydrogen Energy Foshan University

Transitional metal oxides have a wide range of applications due to their superior *** enhanced performance of metal oxide relies on their desirable oxidation states,which is challenging to achieve and requires complex *** study demonstrates a facile strategy enabling rapid phase transformation of transition metal *** approach involves synthesis of a tetragonal Mn3O4/carbon cloth composite using the liquid plasma discharge deposition （LPDD） technique,followed by laser irradiation with the presence of ethylene glycol under an N2gas *** resulting face-centered cubic MnO/carbon cloth electrode exhibits an excellent capacitance of 1,125 F g-1at 2 A g-1,with remarkable capacitance retention of 95%after10,000 *** approach can be extended to other transition metals including Co,Cu,Cr,Fe,Ni,and *** simulations reveal the significance of ethylene glycol and the underlying mechanism associated with the phase transformation of transition metal *** present study offers a powerful technique for the phase transformation of transition metal oxide which can guide the development of new electrode materials with enhanced electrochemical properties for high-performance energy storage applications.

关键词：

A Study on the Challenges and Solutions of Blockchain Interoperability

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

China Communications 2023年第6期20卷 148-165页

作者： siyu zhu Cheng Chi Yang Liu China Academy of Information and Communications Technology Beijing 100191China

With the development of blockchain technology,a variety of mutually independent blockchains such as Bitcoin and Ethereum,as well as private and consortium chains,coexist in large *** a linker of the blockchain network,blockchain interoperability will link more blockchain ecosystems,realize the interconnection of the blockchain and enhance the scalability of the *** paper summarizes typical blockchain interoperability ***,it proposes a blockchain interoperability definition and an architecture ***,it analyzes technical characteristics of blockchain interoperability,and typical blockchain interoperability cases are ***,the trend of future development of blockchain interoperability technology is summarized and discussed.

关键词： blockchain interoperability smart contract crosschain distributed ledgers Dapps

维普期刊数据库

Multiple regression models for energy consumption of office buildings in different climates in China

在线全文

学校读者我要写书评

暂无评论

Frontiers in Energy 2013年第1期7卷 103-110页

作者： siyu ZHOU Neng zhu School of Environmental Science and Engineering Tianjin UniversityTianjin 300072 China

The energy consumption of office buildings in China has been growing significantly in recent years. Obviously, there are significant relationships between building envelope and the energy consumption of office buildings. The 8 key building envelope influencing factors were found in this paper to evaluate their effects on the energy consumption of the air-conditioning system. The typical combinations of the key influencing factors were performed in Trnsy simulation. Then on the basis of the simulated results, the multiple regression models were developed respectively for the four climates of China--hot summer and warm winter, hot summer and cold winter, cold, and severely cold. According to the analysis of regression coefficients, the appropriate building envelope design schemes were discussed in different climates. At last, the regression model evaluations consisting of the simulation evaluations and the actual case evaluations were performed to verify the feasibility and accuracy of the regression models. The error rates are within i5% in the simulation evaluations and within ＋ 15% in the actual case evaluations. It is believed that the regression models developed in this paper can be used to estimate the energy consumption of office buildings in different climates when various building envelope designs are considered.

关键词： regression model energy consumption building envelope office building different climates

Heteroatom dopant strategy triggered high-potential plateau to non-graphitized carbon with highly disordered microstructure for high-performance sodium ion storage

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2023年第4期79卷 192-200页

作者： Peilin Zhang Chen Huang Mingzhen Xiu siyu zhu Weiwei Wang Bo zhu Likang Qin Yizhong Huang Luyang Chen Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore Energy Research Institute Interdisciplinary Graduate ProgrammeNanyang Technological UniversitySingapore

Non-graphitized carbon(NGC)has been extensively utilized as carbonaceous anode in sodium-ion batteries(SIBs).However,more optimization to achieve competitive capacity and stability is still challenging for *** the study,the dopant strategy is utilized to construct nitrogen/sulfur-doped non-graphitized carbon(N-NGC or S-NGC)shell decorated on three-dimensional graphene foam(GF)as a self-support *** highly disordered microstructures of heteroatom doped carbons are produced by applying a low-temperature pyrolysis treatment to precursors containing nitrogen and *** DFT calculations of Na-ion adsorption energies at diverse heteroatom sites show marginal-S,pyrrolic N and pyridinic N with more intensive Na-ion adsorption ability than middle-S,C=O and pristine *** N-NGC with dominant small graphitic regions delivers adsorption ability to Na-ion,while the S-NGC with significant single carbon lattice stripes demonstrates redox reaction with ***,in comparison with only adsorption-driven slope regions at high potential for N-NGC,the redox reaction-generated potentialplateau enables non-graphitized S-NGC superior discharge/charge capacity and cycle-stability in the slope *** work could provide deep insight into the rational design of non-graphitized carbon with rich microstructure and composition.

关键词： Non-graphitized carbon Highly disordered microstructure Heteroatom dopant Adsorption Redox reaction

维普期刊数据库

N-doped interconnected carbon aerogels as an efficient SeS2 host for long life Na-SeS2 batteries

在线全文

学校读者我要写书评

暂无评论

Nano Research 2020年第4期13卷 967-974页

作者： Yurui Deng Lunlun Gong Hoda Ahmed Yuelei Pan Xudong Cheng siyu zhu Heping Zhang State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026China Energy Storage and Distributed Resources Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

Selenium sulfide(SeS2)cathodes have attracted much concern as an optimized choice comparing to sulfur and selenium for lithium and sodium ***,it also suffers from poor cycling stability due to the dissolution of reaction intermediate *** this study,N-doped Interconnected carbon aerogels was applied as an efficient SeS2 host by infiltrating selenium sulfide into its microporous structure(denoted as SeS2@NCAs),which could effectively accommodate the volume change of SeS2 during cycling and alleviate the dissolution of reaction intermediate ***,as for Na storage,the SeS2@NCAs cathode delivers a superior long-term cycling performance of 536 mA·h·g^-1 at a current density of 0.5 A·g^-1 after 1,000 cycles with only 0.04%capacity decline per cycle and a high rate performance(524 mA·h·g^-1 at 2 A·g^-1 and 745 mA·h·g^-1 at 0.1 A·g^-1 retained),indicating the remarkable cycling stability of SeS2@NCAs cathodes.

关键词： sodium-SeS2 batteries N-doped interconnected carbon aerogels superior long-term cycling performance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

童年逆境与成年期高血压患病的研究进展

中国全科医学 2025年第3期28卷 358-364页

作者：姜申吴静周佳丽蒋德楠孙炜迪程思清朱思雨侯乐莹宋培歌浙江大学公共卫生学院浙江省杭州市310058 福建省三明市疾病预防控制中心免疫规划科 365500 浙江大学医学院附属第二医院临床大数据与统计中心浙江省杭州市310006

童年逆境(ACEs)是指发生在儿童时期(18岁以前)的各种创伤事件或情况。长期并持续的ACEs可能对儿童身心健康造成终身影响。目前,欧美地区的多项研究证实了ACEs可增加个体成年期高血压的患病风险,然而不同分型的ACEs与成年期高血压的关联... 详细信息

童年逆境(ACEs)是指发生在儿童时期(18岁以前)的各种创伤事件或情况。长期并持续的ACEs可能对儿童身心健康造成终身影响。目前,欧美地区的多项研究证实了ACEs可增加个体成年期高血压的患病风险,然而不同分型的ACEs与成年期高血压的关联仍存在争议。本文对不同分型的ACEs与成年期高血压相关研究进行综述,探讨童年期不同分型逆境对成年期高血压患病的影响及其发生、发展机制,归纳总结两者间的研究现状并提出展望,为改善儿童早期发展环境、预防其成年期高血压研究提供依据。

关键词：童年不良经历童年逆境成年期高血压高血压疾病负担综述

维普期刊数据库博看期刊

An artificial chromosome for data storage

在线全文

学校读者我要写书评

暂无评论

National Science Review 2021年第5期8卷 67-75页

作者： Weigang Chen Mingzhe Han Jianting Zhou Qi Ge Panpan Wang Xinchen Zhang siyu zhu Lifu Song Yingjin Yuan School of Microelectronics Tianjin University Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) Tianjin University Syn Bio Research Platform Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)School of Chemical Engineering and TechnologyTianjin University

DNA digital storage provides an alternative for information storage with high density and long-term ***, we report the de novo design and synthesis of an artificial chromosome that encodes two pictures and a video clip. The encoding paradigm utilizing the superposition of sparsified error correction codewords and pseudo-random sequences tolerates base insertions/deletions and is well suited to error-prone nanopore sequencing for data retrieval. The entire 254 kb sequence was 95.27% occupied by encoded *** Transformation-Associated Recombination method was used in the construction of this chromosome from DNA fragments and necessary autonomous replication sequences. The stability was demonstrated by transmitting the data-carrying chromosome to the 100 th generation. This study demonstrates a data storage method using encoded artificial chromosomes via in vivo assembly for write-once and stable replication for multiple retrievals, similar to a compact disc, with potential in economically massive data distribution.

关键词： DNA storage synthetic biology indel correction encoded DNA artificial chromosome

Highly efficient catalytic transfer hydrogenation for the conversion of nitrobenzene to aniline over PdO/TiO_(2):The key role of in situ switching from PdO to Pd

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第2期148卷 515-528页

作者： Anqi Lu Xiaokang Xiang Ming Lei Shuangshuang Huang Bingbing Liang siyu Zhao Lihua zhu Heqing Tang College of Resources and Environmental Science South-Central Minzu UniversityWuhan 430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China School of Physics and Technology Center for Electron MicroscopyMOE Key Laboratory of Artificial Micro-and Nano-Structuresand Institute for Advance StudiesWuhan UniversityWuhan 430072China

The reduction of nitrobenzene to aniline is very important for both pollution control and chemical ***,difficulties still remain in developing a catalytic system having high efficiency and selectivity for the production of ***,it was found that PdO nanoparticles highly dispersed on TiO_(2)support(PdO/TiO_(2))functioned as a highly efficient catalyst for the reduction of nitrobenzene in the presence of *** favorable conditions,95%of the added nitrobenzene(1 mmol/L)was reduced within 1 min with an ultra-low apparent activation energy of 10.8 kJ/mol by using 0.5%PdO/TiO_(2)as catalysts and 2 mmol/L of NaBH4 as reductants,and the selectivity to aniline even reached up to 98%.The active hydrogen specieswere perceived as dominant species during the hydrogenation of nitrobenzene by the results of isotope labeling experiments and ESR spectroscopic.A mechanismwas proposed as follows:PdO activates the nitro groups and leads to in-situ generation of Pd,and the generated Pd acts as the reduction sites to produce active hydrogen *** this catalytic system,nitrobenzene prefers to be adsorbed on the PdO nanoparticles of the PdO/TiO_(2)***,the addition of NaBH4 results in in-situ generation of a Pd/PdO/TiO_(2)composite from the PdO/TiO_(2)composite,and the Pd nanoclusters would activate NaBH4 to generate active hydrogen species to attack the adsorbed nitro *** work will open up a new approach for the catalytic transfer hydrogenation of nitrobenzene to aniline in green chemistry.

关键词： Catalytic transfer hydrogenation Reduction Pd Nitrobenzene Aniline

Study on High-frequency Callus Induction From Aseptic Plantlets of Anthuium andraeanum

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Biotechnology 2019年第4期8卷 39-41,47页

作者： Xiuxiu LI siyu ZHOU siyu zhu Le GAO Jianzhong TAN Department of Landscape Architecture College of Architecture Soochow University

[Objectives]This study was conducted to improve the efficiency of callus induction and redifferentiation,and construct high-frequency plant regeneration techniques of tissue culture in Anthuium andraeanum.[Methods]The effects of different genotypes,explant types and hormonal conditions on callus induction and re-differentiation of *** were studied by using the aseptic *** test-tube plantlets as test materials.[Results]Among the four kinds of aseptic *** plantlets,the callus induction using stem segments with leaves was the best,followed by stem segments and leaves,and the petioles were the worst;among the six *** varieties tested,the callus production rates of four varieties reached 100%;and the callus differentiation rate reached 93.3%-100%through the organogenesis pathway,and the suitable differentiation medium was 1/2MS+ZT 0.5 mg/L+2,4-D 0.1 mg/L.[Conclusions]The research results provide a new experimental basis for optimizing the technical system of *** rapid propagation.

关键词： Anthuium andraeanum Explant type Callus induction Cytokinin Adventitious bud