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Super-assembled highly compressible and flexible cellulose aerogels for methylene blue removal from water

Chinese Chemical Letters 2021年第6期32卷 2091-2096页

作者： Mingfu Luo Meng Wang Huaipeng Pang Runhao Zhang Jing Huang Kang Liang Pu Chen Peipei Sun Biao Kong National supercomputer Research center of Advanced Materials Advanced Materials InstituteQilu University of Technology(Shandong Academy of Sciences)Ji'nan 250014China Department of Chemistry Shanghai Key Lab of Molecular Catalysis and Innovative Materials iChEMFudan UniversityShanghai 200433China School of Chemical Engineering and Graduate School of Biomedical Engineering The University of New South WalesNSW 2052Australia Department of Chemical Engineering University of WaterlooWaterlooOntario N2L 3G1Canada

Physical adsorption is a common method to solve the contamination of methylene blue in dyeing *** a kind of adsorption material,cellulose aerogels with high porosity and surface areas have great potential application in methylene blue ***,the week hydrogen bonding between cellulose nanofibers making the cellulose aerogels with the poor mechanical properties and can be easily destroyed during ***,the preparation of cellulose aerogels with high mechanical strength is still a great ***,we report a robust super-assembly strategy to fabricate cellulose aerogels by combining cellulose nanofibers with PVA and *** resulting cellulose aerogels not only has a robust chemically cross-linked network,but also has strong H-bonds,which greatly enhance the mechanical *** resulting cellulose aerogels possess a low density of 19.32 mg/cm^(3).Furthermore,the cellulose aerogel shows 93%shape recovery under 60%strain(9.5 k Pa under 60%strain)after 100 cycles,showing excellent mechanical *** adsorption capacity of cellulose aerogel to methylene blue solution of 20 mg/L is 2.28 mg/g and the adsorption kinetics and adsorption isotherms have also been ***-second-order kinetic model and Freundlich isotherm model are more acceptable for indicating the adsorption process of methylene blue on the cellulose ***,this compressible and durable cellulose aerogel is a very prospective material for dyeing wastewater cleanup.

关键词： Cellulose nanofiber Aerogel Compressible Adsorption Methylene blue

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FAIR Practices in Africa

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Data Intelligence 2020年第1期2卷 246-256,318,319页

作者： Mirjam van Reisen Mia Stokmans Munyaradzi Mawere Mariam Basajja Antony Otieno Ong’ayo Primrose Nakazibwe Christine Kirkpatrick Kudakwashe Chindoza Liacs Institute of Advanced Computer Science Leiden UniversityLeidenThe Netherlands Tilburg School of Humanities and Digital Sciences Tilburg University901535000 LE TilburgThe Netherlands Great Zimbabwe University 1235 Masvingo Zimbabwe HarareZimbabwe International Institute of Social Studies Erasmus University297762502 LT The HagueThe Netherlands Institute of Interdisciplinary Studies Mbarara University of Science and Technology1410 MbararaUganda San Diego supercomputer center University of California San DiegoSan Diego CA 92093USA

This article investigates expansion of the Internet of FAIR Data and Services(IFDS)to Africa,through the three GO FAIR pillars:GO CHANGE,GO BUILD and GO *** of the IFDS in Africa has a focus on digital *** examples of introducing FAIR are compared:a regional initiative for digital health by governments in the East Africa Community(EAC)and an initiative by a local health provider(Solidarmed)in collaboration with Great Zimbabwe University in *** obstacles to introducing FAIR are identified as underrepresentation of data from Africa in IFDS at this moment,the lack of explicit recognition of situational context of research in FAIR at present and the lack of acceptability of FAIR as a foreign and European invention which affects *** is envisaged that FAIR has an important contribution to solve fragmentation in digital health in Africa,and that any obstacles concerning African participation,context relevance and acceptance of IFDS need to be *** will require involvement of African researchers and ICT-developers so that it is driven by local *** of ecological validity in FAIR principles would ensure that the context specificity of research is reflected in the FAIR *** will help enhance the acceptance of the FAIR Guidelines in Africa and will help strengthen digital health research and services.

关键词： FAIR data Health Digital Health digital health in Africa GO FAIR Implementation Network

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Novel insights on acetylcholinesterase inhibition by Convolvulus pluricaulis,scopolamine and their combination in zebrafish

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Natural Products and Bioprospecting 2022年第1期12卷 56-70页

作者： Kalyani Bindu Karunakaran Anand Thiyagaraj Kirankumar Santhakumar supercomputer Education and Research Centre Indian Institute of Sci-enceBengaluruIndia Department of Genetic Engineering SRM Institute of Science and TechnologyKattankulathur 603203India Zebrafish Genetics Laboratory Department of Genetic EngineeringSRM Institute of Science and TechnologyKattankulathur 603203India

Acetylcholinesterase(AChE)inhibitors increase the retention of acetylcholine(ACh)in *** they allevi-ate cognitive deficits in Alzheimer’s disease,their limited benefits warrant investigations of plant extracts with similar *** studied the anti-AChE activity of Convolvulus pluricaulis(CP)in a zebrafish model of cognitive impair-ment induced by scopolamine(SCOP).CP is a perennial herb with anti-amnesiac and anxiolytic *** contains alkaloid,anthocyanin,coumarin,flavonoid,phytosterol and triterpenoid ***(ISOX)was used as a positive control for AChE ***-treated 168 hpf larvae showed a similar pattern of AChE inhibition(in the myelencephalon and somites)as that of ISOX-treated *** was superior to ISOX as evidenced by the retention of avoidance response behavior in adult *** docking studies indicated that ISOX binds Ser203 of the catalytic triad on the human *** active components of CP-scopoletin and kaempferol-were bound by His447 of the catalytic triad,the anionic subsite of the catalytic center,and the peripheral anionic *** suggested the ability of CP to mediate both competitive and non-competitive modes of ***,SCOP showed AChE inhibition in larvae,possibly mediated via the choline-binding ***+SCOP induced a concentration-dependent increase in AChE inhibition and ACh *** motor responses were observed with ISOX,CP,ISOX+SCOP,and CP+SCOP,indicative of undesirable effects on the peripheral cholinergic *** study proposes the examination of CP,SCOP,and CP+SCOP as potential AChE inhibitors for their ability to modulate cognitive deficits.

关键词： Alzheimer’s disease Acetylcholinesterase Zebrafish Convolvulus pluricaulis Scopolamine Isoxazole

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Sunway supercomputer architecture towards exascale computing: analysis and practice

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Science China(Information Sciences) 2021年第4期64卷 177-197页

作者： Jiangang GAO Fang ZHENG Fengbin QI Yajun DING Hongliang LI Hongsheng LU Wangquan HE Hongmei WEI Lifeng JIN Xin LIU Daoyong GONG Fei WANG Yan ZHENG Honghui SUN Zhou ZHOU Yong LIU Hongtao YOU National Research center of Parallel Computer Engineering and Technology

In recent years, the improvements of system performance and energy efficiency for supercomputers have faced increasing challenges, which create more intensive demands on the architecture design for realizing exascale computing. This paper first analyzes the main requirements of exascale computing on the aspects of the parallel computing application and supercomputing center operation. Afterwards, a mapping scheme of "demands-challenges-architecture" is proposed. Then, the major challenges of exascale supercomputer, such as scalability, power consumption, data movement, programming and availability, are thoroughly analyzed, and the corresponding appropriate solutions are proposed. Moreover, this paper proposes the Sunway computer architecture towards exascale computing in which the many-core processor, network chipset and software system are all domestically-designed. The technology roadmap of Sunway supercomputer will hold the comprehensive design methods for the architecture, including the processor, interconnect network,assembly structure, power supply, cooling system, system software, parallel algorithm and application support, promising great advances for exascale supercomputing.

关键词： supercomputer exascale Sunway scalability power consumption data movement programming availability

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Cu-doped CoS2 polyhedrons with high catalytic activity and long-term stability

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Science China Materials 2020年第7期63卷 1337-1344页

作者： Jie Yin Pin Chen Minglong Lu Lili Song Renyun Zhang Feng Xu Ningning Wu Yuqiao Wang Institute of Advanced Materials School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing 211189China National supercomputer center in Guangzhou(NSCC-GZ) Sun Yat-sen UniversityGuangzhou 510006China Department of Natural Sciences Mid Sweden UniversityHolmgatan 10SE85170SundsvallSweden SEU-FEI Nano-Pico center Key Laboratory of MEMS of Ministry of EducationSoutheast UniversityNanjing210096China

Transition metal sulfides are of great relevance in pho-toelectrochemical catalytic reactions[1-3],due to their unique electronic structure,tunable composition and morphology,and the possibility of large scale *** hav... 详细信息

关键词：电荷转移速率高催化活性过渡金属硫化物第一性原理计算还原反应铜掺杂多面体长期稳定性

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Multi level cell (MLC) in 3D crosspoint phase change memory array

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Science China(Information Sciences) 2021年第6期64卷 225-226页

作者： Nanbo GONG IBM T.J.Watson Research center

The success of memory technology is of vital importance in order to handle emerging mass amount of data in our daily lives. Let us take one example here: The IBM summit is the supercomputer released in 2018 and it plays an important role to help researchers run large numbers of calculations and better understand COVID-191). To enable such powerful computing capability, the IBM summit includes250 petabytes storage capacity2). To make a fair comparison, this is larger than the total number of all the ants we can find on the earth(on the order of 10;–10;)3).

关键词： MLC Multi level cell in 3D crosspoint phase change memory array

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An Implementation of Galactic White Dwarf Binary Data Analysis for MLDC-3.1

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Research in Astronomy and Astrophysics 2023年第1期23卷 268-284页

作者：卢杨李恩坤胡一鸣张建东梅健伟 MOE Key Laboratory of TianQin Mission TianQin Research Center for Gravitational Physics&School of Physics and AstronomyFrontiers Science Center for TianQinGravitational Wave Research Center of CNSASun Yat-sen University(Zhuhai Campus)Zhuhai 519082China

The space-borne gravitational wave detectors will observe a large population of double white dwarf binaries in the Milky ***,the search for double white dwarfs in the gravitational wave data will be time-consuming due to the large number of templates involved and antenna response *** this paper,we implement an iterative combinatorial algorithm to search for double white dwarfs in MLDC-3.1 *** quickly determine the rough parameters of the target sources,the following algorithms are adopted in a coarse search process:(1)using the downsampling method to reduce the number of original data points;(2)using the undersampling method to speed up the generation of a single waveform template;(3)using the stochastic template bank method to quickly construct the waveform template bank while achieving high coverage of the parameter space;(4)combining the FFT acceleration algorithm with the stochastic template bank to reduce the calculation time of a single template.A fine search process is applied to further determine the parameters of the signals based on the coarse search,for which we adopt the particle swarm ***,we detect O(10^(4))double white dwarf signals,validating the feasibility of our method.

关键词： (stars:)white dwarfs-(stars:)binaries general-gravitational waves

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为高等教育信息化基础设施发展可持续的数据服务:要求和可吸取的经验(英文)

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数据与计算发展前沿 2014年第1期5卷 16-34页

作者： Wilfred W.Li Richard L.Moore Matthew Kullberg Brian Battistuz Steve Meier Ronald Joyce Richard P.Wagner Tad Reynales Qian Liu San Diego supercomputer center UC San Diego La JollaCA 92093 USA Qualcomm Institute UC San Diego La Jolla CA 92093 USA

美国加州大学圣迭戈分校(UCSD)的科研信息化基础设施(RCI)项目的目标是在集中存储、主机托管、计算、数据管理、联网和技术服务等方面为师生员工提供长期优质的服务。在2012年9月到2013年2月之间,为了确定数据存储的要求以及工作优先排... 详细信息

美国加州大学圣迭戈分校(UCSD)的科研信息化基础设施(RCI)项目的目标是在集中存储、主机托管、计算、数据管理、联网和技术服务等方面为师生员工提供长期优质的服务。在2012年9月到2013年2月之间,为了确定数据存储的要求以及工作优先排序,RCI数据服务团队(RCIDS)与多名教师和高级职员进行了一系列访谈。这些采访涉及了圣迭戈分校的29个独立的部门和科研单位,有50个不同的小组参加,共代表了600多名研究人员。这些研究小组的各样数据,从人类基因组序列,海洋天然产物,到宇宙模拟实验,是与全球成千上万用户分享的。根据这些访谈的结果,我们总结了圣迭戈分校研究人员对数据服务的10个要求以及5个现有的挑战与风险。RCIDS提出在一个可持续的商业模式下,首先部署网络附加存储(NAS)数据服务;然后,再通过进一步的讨论以及考虑新兴的云计算技术来确定更长远的服务计划;最后,我们对于建立可持续性的高等教育e-科学基础设施的实施方案,基于云计算的数据服务,以及可吸取的经验教训提供了广泛的讨论。

关键词：高等教育科研信息化基础设施云数据可持续的数据服务网络附加存储

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为高等教育信息化基础设施发展可持续的数据服务:要求和可吸取的经验(英文)

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科研信息化技术与应用 2014年第1期5卷 16-34页

关键词：高等教育科研信息化基础设施云数据可持续的数据服务网络附加存储

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Green synthesis of novel conjugated poly(perylene diimide)as cathode with stable sodium storage

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Nano Research 2023年第7期16卷 9538-9545页

作者： Jinyun Zheng Xinxin Liu Wenbin Li Wenjie Li Xiangming Feng Weihua Chen College of Chemistry&Green Catalysis center Zhengzhou UniversityZhengzhou 450001China

Conjugated polymers of organic carbonyl compounds are promising electrode materials for energy storage devices owing to the renewable development prospects,structural variability,and better insolubility in ***,the synthesis methods in solution are cumbersome and complicated in separation and purification,and require the introduction of functional groups and use of expensive *** this work,a novel conjugated poly(3,4,9,10-perylenetetracarboxylic diimide)(PPI)with superior thermal stability and lower solubility was prepared successfully by a green facile mechanical ball milling *** PPI exhibits enhanced electrochemical dynamics performance,preferable rate capability,higher discharge capacity,and excellent cycling stability of 450 cycles at 0.2 C with higher capacity retention of 85.7%when used as cathode material for sodium-ion ***,the in-situ X-ray diffraction(XRD)and in-situ Raman investigations combined with the Fourier transform infrared(FT-IR)and X-ray photoelectron spectroscopy(XPS)were carried out to investigate the sodium storage *** results indicate that only two sodium ions are bound to two opposite carbonyl groups of PPI monomer to form sodium enolates during normal charging and discharging and to deliver available reversible capacity.

关键词： sodium-ion battery organic cathode carbonyl compound stability green synthesis

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