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Automatic data archiving and visualization at HLS-Ⅱ

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Nuclear Science and Techniques 2018年第9期29卷 179-184页

作者： Yi-Fan Song chuan Li ke Xuan Gong-Fa Liu National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China

The control system of Hefei Light Source II(HLS-Ⅱ) is a distributed system based on the experimental physics and industrial control system(EPICS). It is necessary to maintain the central configuration files for the existing archiving system. When the process variables in the control system are added, removed, or updated, the configuration files must be manually modified to maintain consistency with the control system. This paper presents a new method for data archiving, which realizes the automatic configuration of the archiving parameters. The system uses microservice architecture to integrate the EPICS Archiver Appliance and Rec Sync. In this way, the system can collect all the archived meta-configuration from the distributed input/output controllers and enter them into the EPICS Archiver Appliance automatically. Furthermore, we also developed a web-based GUI to provide automatic visualization of real-time and historical data. At present,this system is under commissioning at HLS-Ⅱ. The results indicate that the new archiving system is reliable and convenient to operate. The operation mode without maintenance is valuable for large-scale scientific facilities.

关键词： Automatic archiving Data visualization Microservice architecture EPICS Archiver Appliance

Recent trends in the use of polyoxometalate-based material for efficient water oxidation

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Science China Chemistry 2011年第12期54卷 1877-1887页

作者： HAN ZhanGang BOND Alan M zhao chuan School of Chemistry The University of New South Wales Sydney NSW 2052 Australia School of Chemistry Monash University Clayton Victoria 3800 Australia

Polyoxometalates （POMs）, with their attractive topological and electronic properties, have been demonstrated over the last few decades to be efficient catalysts for many reactions. In a new direction, POMs having a purely inorganic framework are now being explored as efficient catalysts for water oxidation. This review focuses on very recent developments of POM-based catalysts for water oxidation to O2. In the very extensive family of POMs, tetra-core sandwich-type Ru- and Co-containing POM complexes, namely [Ru404（OH）2（H20）4（y-SiW10O36）2]10- and [CO4（H2O）2（a-PWgO34）2]10- exhibit the ability to facilitate water oxidation under electrocatalytic and/or photocatalytic conditions. However, it is concluded that much work still needs to be done to explain the catalytic mechanisms and optimize these catalytic systems. In addition, recent trends in using ionic liquids as media to modify the electrolytic environment and enhance water oxidation are highlighted.

关键词： polyoxometalate water oxidation catalysis electrochemistry photochemistry energy

Bayesian Filtering for High-Dimensional State-Space Models With State Partition and Error Compensation

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1239-1249页

作者： ke Li Shunyi zhao Biao Huang Fei Liu key Laboratory of Advanced Process Control for Light Industry(Ministry of Education) Institute of AutomationJiangnan UniversityWuxi 214122China Department of Chemical and Materials Engineering University of AlbertaEdmonton AB T6G 2G6Canada

In the era of exponential growth of data availability,the architecture of systems has a trend toward high dimensionality,and directly exploiting holistic information for state inference is not always computationally *** paper proposes a novel Bayesian filtering algorithm that considers algorithmic computational cost and estimation accuracy for high-dimensional linear *** high-dimensional state vector is divided into several blocks to save computation resources by avoiding the calculation of error covariance with immense *** that,two sequential states are estimated simultaneously by introducing an auxiliary variable in the new probability space,mitigating the performance degradation caused by state ***,the computational cost and error covariance of the proposed algorithm are analyzed analytically to show its distinct features compared with several existing *** results illustrate that the proposed Bayesian filtering can maintain a higher estimation accuracy with reasonable computational cost when applied to high-dimensional linear systems.

关键词： filtering estimation error

Rapid self-healing,self-adhesive,anti-freezing,moisturizing,antibacterial and multi-stimuli-responsive PVA/starch/tea polyphenol-based composite conductive organohydrogel as flexible strain sensor

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Journal of Materials Science & Technology 2023年第4期135卷 199-212页

作者： Tao ke Li zhao Xin Fan Haibin Gu key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan UniversityChengdu 610065China National Engineering Research Center of Clean Technology in Leather Industry Sichuan UniversityChengdu 610065China

The complexity of application environment stimulates the development of wearable devices based on functional *** all the promising performances,self-healing and self-adhesion properties are ideal for hydrogel sensors,which can guarantee good accuracy,comfort and long service ***,it is still a challenge to achieve simultaneous self-healing and self-adhesion in different environments(in the air,underwater and at low temperatures).Herein,a feasible new strategy was successfully carried out to prepare a starch-based composite conductive organohydrogel based on the reversible borate ester bonds formed by complexing starch/polyvinyl alcohol(PVA)/tea polyphenol(TP)with borax,and multiple hydrogen-bond interactions among PVA,starch,TP and ethylene glycol(EG).Silver nanoparticles(Ag-NPs),reduced and stabilized by TP,and MWCNTs(multi-walled carbon nanotubes)were introduced into the cross-linking networks to endow the resulting PBSTCE organohydrogel with considerable antibacterial property and conductivity,*** organohydrogel possessed rapid self-healing(HE(self-healing efficiency)=96.07%in 90 s,both in the air and underwater,also at-20℃),considerable self-adhesion(both in the air and underwater,also at-20℃),remarkable stretchability(814%of elongation),anti-freezing(-20℃)and moisture-retention abilities,antibacterial activity,sensitive pH/sugar-responsiveness,and *** strain sensor formed by the PBSTCE organohydrogel can not only effectively record large-scale human motions(***/wrist/elbow bending,walking,etc.),but also accurately capture subtle motion changes(***,chewing,swallowing,speaking,smiling and frowning).Moreover,the self-healed organohydrogel sensor also exhibited almost invariable mechanical,electrical and sensing *** work demonstrates a feasible strategy to construct multifunctional starch-based organohy-drogels,and promotes their efficient,stable and eco-friendly application as flexible wearabl

关键词： Conductive organohydrogel Strain sensor Self-healing Self-adhesive Anti-freezing Antibacterial

Highly active CoP-CO_(2)N confined in nanocarbon enabling efficient electrocatalytic immobilizing-conversion of polysulfide targeting high-rate lithium-sulfur batteries

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Journal of Energy Chemistry 2022年第12期75卷 250-259,I0006页

作者： Xiaojun zhao Tianqi Gao Wenhao Ren chuan zhao Zhi-Hong Liu Linbo Li School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina School of Chemistry and Chemical Engineering Shaanxi Normal UniversityXi’an 710062ShaanxiChina School of Chemistry University of New South WalesSydneyNSW 2052Australia

Lithium-sulfur batteries suffer from poor cycling stability because of the intrinsic shuttling effect of intermediate polysulfides and sluggish reaction kinetics,especially at high rates and high sulfur ***,we report the construction of a CoP-CO_(2)N@N-doped carbon polyhedron uniformly anchored on three-dimensional carbon nanotubes/graphene(CoP-CO_(2)N@NC/CG)scaffold as a sulfur reservoir to achieve the trapping-diffusion-conversion of *** active CoP-CO_(2)N shows marvelous catalytic effects by effectively accelerating the reduction of sulfur and the oxidation of Li_(2)S during the discharging and charging process,respectively,while the conductive NC/CG network with massive mesoporous channels ensures fast and continuous long-distance electron/ion *** calculations demonstrate that the CoP-CO_(2)N with excellent intrinsic conductivity serves as job-synergistic immobilizing-conversion sites for polysulfides through the formation of P…Li/N…Li and Co…S *** a result,the S@CoP-CO_(2)N@NC/CG cathode(sulfur content 1.7 mg cm^(-2))exhibits a high capacity of988 mAh g^(-1)at 2 C after 500 cycles,which is superior to most of the electrochemical performance *** under high sulfur content(4.3 mg cm^(-2)),it also shows excellent cyclability with high capacity at 1 C.

关键词： CoP-CO_(2)N@NC/CG Trapping-diffusion-conversion High-rate DFT calculation Li-S battery

Biocompatible and antibacterial soy protein isolate/quaternized chitosan composite sponges for acute upper gastrointestinal hemostasis

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Regenerative Biomaterials 2021年第4期8卷 107-118页

作者： Zijian Wang MeiFang ke Liu He Qi Dong Xiao Liang Jun Rao Junjie Ai chuan Tian Xinwei Han Yanan zhao Department of Interventional Radiology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Department of Urology Zhongnan Hospital of Wuhan UniversityWuhan 430071China Department of Biomedical Engineering and Hubei Province key Laboratory of Allergy and Immune Related Disease School of Basic Medical SciencesWuhan UniversityWuhan 430071China Department of Clinical Laboratory Hubei Provincial Hospital of Traditional Chinese MedicineWuhan 430061China

Innovative biomedical applications have high requirements for biomedical ***,a series of biocompatible,antibacterial and hemostatic sponges were successfully fabricated for the treatment of acute upper gastrointestinal bleeding(AUGB).Quaternized chitosan(QC)and soy protein isolate(SPI)were chemically cross-linked to obtain porous SPI/QC sponges(named SQS-n,with n¼30,40,50 or 60 corresponding to the weight percentage of the QC content).The chemical composition,physical properties and biological activity of SQS-n were ***-n could support the adhesion and proliferation of L929 cells while triggering no obvious blood ***,SQS-n exhibited good broad-spectrum antibacterial activity against both grampositive bacteria(Staphylococcus aureus)and gram-negative bacteria(Escherichia coli).The in vivo hemostatic effect of SQS-n was evaluated using three different bleeding *** results revealed that SQS-50 performed best in reducing blood loss and hemostatic *** overall hemostatic effect of SQS-50 was comparable to that of a commercial gelatin *** enhanced antibacterial and hemostatic activities of SQS-n were mainly attributed to the QC *** conclusion,this work developed a QC-functionalized hemostatic sponge that is highly desirable for innovative biomedical applications,such as AUGB.

关键词： quaternized chitosan soy protein isolate biocompatibility antibacterial hemostasis

Bimetallic catalysts as electrocatalytic cathode materials for the oxygen reduction reaction in microbial fuel cell:A review

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Green Energy & Environment 2023年第4期8卷 1043-1070页

作者： ke zhao Yuanxiang Shu Fengxiang Li Guosong Peng College of Municipal and Environmental Engineering Ministry of Education Key Laboratory of Songliao Aquatic EnvironmentJilin Jianzhu UniversityJilin130118China College of Environmental Science and Engineering Ministry of Education Key Laboratory of Pollution Processes and Environmental CriteriaRemediation and Pollution Control for Urban Ecological EnvironmentalNankai UniversityTianjin300350China

Microbial fuel cell(MFC) is one synchronous power generation device for wastewater treatment that takes into account environmental and energy issues, exhibiting promising potential. Sluggish oxygen reduction reaction(ORR) kinetics on the cathode remains by far the most critical bottleneck hindering the practical application of MFC. An ideal cathode catalyst should possess excellent ORR activity, stability, and costeffectiveness, experiments have demonstrated that bimetallic catalysts are one of the most promising ORR catalysts currently. Based on this, this review mainly analyzes the reaction mechanism(ORR mechanisms, synergistic effects), advantages(combined with characterization technologies), and typical synthesis methods of bimetallic catalysts, focusing on the application effects of early Pt-M(M = Fe, Co, and Ni) alloys to bifunctional catalysts in MFC, pointing out that the main existing challenges remain economic analysis, long-term durability and large-scale application, and looking forward to this. At last, the research trend of bimetallic catalysts suitable for MFC is evaluated, and it is considered that the development and research of metal-organic framework(MOF)-based bimetallic catalysts are still worth focusing on in the future, intending to provide a reference for MFC to achieve energy-efficient wastewater treatment.

关键词： Bimetallic catalysts Oxygen reduction reaction Microbial fuel cell Wastewater treatment Power generation

Responsive mechanism and coordination mode effect of a bipyridine-based two-photon fluorescent probe for zinc ion

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Chinese Physics B 2020年第8期29卷 243-249页

作者： Han Zhang Zhe Shao ke zhao School of Physics and Electronics Shandong Normal UniversityJinan 250358China

The properties of one-photon absorption(OPA),emission and two-photon absorption(TPA)of a bipyridine-based zinc ion probe are investigated employing the density functional theory in combination with response *** responsive mechanism and coordination mode effect are *** structural fluctuation is illustrated by molecular dynamics *** calculated OPA and emission wavelengths of the probe are consistent with the experimental *** is found that the red-shift of OPA wavelength and the enhancement of TPA intensity are induced by the increased intra-molecular charge transfer mechanism upon metal *** structural fluctuation could result in the blue-shift of TPA wavelength and the decrease of the TPA cross *** TPA properties are quite different among the zinc complexes with different coordination *** TPA wavelength of the complexes with two ligands is close to that of the probe,which is in agreement with the experimental observation.

关键词： two-photon absorption fluorescent probe zinc ion coordination mode bipyridine

Old fusidane-type antibiotics for new challenges:Chemistry and biology

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Chinese Journal of Natural Medicines 2022年第2期20卷 81-101页

作者： TIAN chuan WANG ke ZHANG Xuan LI Gang LOU Hong-Xiang Department of Natural Medicinal Chemistry and Pharmacognosy School of PharmacyQingdao UniversityQingdao 266071China Department of Natural Product Chemistry Key Laboratory of Chemical Biology of Ministry of EducationSchool of Pharmaceutical SciencesShandong UniversityJinan 250012China Shandong Provincial key Laboratory of Synthetic Biology Key Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China

The spread of antibiotic-resistant bacteria and exhausted drug leads render some infections untreatable now and in the *** deal with these“new challenges”,scientists tend to re-pick up“old antibiotics”.Fusidane-type antibiotics have been known for nearly 80 years as potent antibacterial agents against gram-positive bacteria,especially Staphylococci,and represent the only triterpene-derived antibiotic class in clinical *** attractive characteristics have drawn renewed attention on fusidane-type antibiotics in recent ***,characterization,biological evaluation,as well as chemical modifications of fusidane-type antibiotics are increasingly being *** biosynthesis of this type of antibiotics has been successfully utilized not only for elucidating the biosynthetic pathways,but also for expanding their structural *** isolated and synthetic compounds exhibit comparable or even more potent biological activity than fusidic *** review provides an overview of progress on the studies of structure and biology of fusidane-type antibiotics from 1943 to April *** informative structure-activity relationship is also highlighted.

关键词： Fusidane-type antibiotics Fusidic acid Biosynthesis Structural modification Biological activity