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Antifungal Activity of Chitosan on Fusarium sulphureum in Relation to Dry Rot of Potato Tuber

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Agricultural Sciences in China 2009年第5期8卷 597-604页

作者： LI Yong-cai SUN xiao-juan bi yang GE Yong-hong WANG Yi College of Food Science and Engineering Gansu Agricultural University Lanzhou 730070 P.R.China

The antifungal activity of chitosan on Fusarium sulphureum in relation to the inhibitory effect on dry rot of potato tuber was investigated. The results showed spore germination and mycelial growth of F. sulphureum were inhibited by chitosan treatment and the inhibitory effect was highly correlated with chitosan concentration used in this study. Morphological changes such as intertwisting hyphal, distortion, and swelling with excessive branching were observed by scanning electron microscopy （SEM） observation. Transmission electron microscopy （TEM） observation further indicated the ultrastructural alterations of hyphae. These changes included abnormal distribution of cytoplasma, non-membraneous inclusion bodies assembling in cytoplasm, considerable thickening of the hyphal cellular walls, and very frequent septation with malformed septa. Application of chitosan at higher concentration caused serious damage to fungal hyphae, including cellular membrane disorganisation, cell wall disruption, and breaking of inner cytoplast. New hyphae （daughter hyphae） inside the collapsed hyphal cells was often detected in the cytoplasm of chitosan-treated hyphae. In vivo tests showed that chitosan treatment at 0.5 or 1% effectively controlled the dry rot of potato tuber inoculated with a spore suspension ofF. sulphureum. However, the chitosan treatment at 1% caused phytotoxicity to potato tuber. This study suggests that the use of chitosan could be a promising handling as a natural fungicide to partially substitute for the synthetic fungicides in potato tuber.

关键词： chitosan Fusarium sulphureum morphology and ultrastructure potato dry rot

The Existence of (v,4,1) Disjoint Difference Families with a Prime Power

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Acta Mathematicae Applicatae Sinica 2008年第4期24卷 643-648页

作者： Dian-hua Wu Jian-xiao yang bi-chang Huang Department of Mathematics Guangxi Normal University Guilin 541004 China

A （v, k, λ） difference family （（v, k, λ）-DF in short） over an abelian group G of order v, is a collection F=（bi｜i ∈ I} of k-subsets of G, called base blocks, such that any nonzero element of G can be represented in precisely A ways as a difference of two elements lying in some base blocks in F. A （v, k, λ）-DDF is a difference family with disjoint blocks. In this paper, by using Weil＇s theorem on character sum estimates, it is proved that there exists a （p^n, 4, 1）-DDF, where p = 1 （rood 12） is a prime number and n ≥1.

关键词： Difference family disjoint difference family optimal optical orthogonal codes character sum

Boosting spring runoff into the sea by reservoir regulation and its potential for estuarine fishery recovery

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Science China Earth Sciences 2024年第5期67卷 1591-1603页

作者： xiao WU Houjie WANG Yongyong FAN Naishuang bi Chiyuan MIAO Jingping XU Zuosheng yang College of Marine Geosciences Key Laboratory of Submarine Geosciences and Prospecting Technologyand Frontiers Science Center for Deep Ocean Multispheres and Earth SystemOcean University of ChinaQingdao 266100China Laoshan National Laboratory Qingdao 266061China Institute of the Yellow River Estuary and Coast Science Dongying 257000China State Key Laboratory of Earth Surface Processes and Resource Ecology Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Department of Ocean Science&Engineering Southern University of Science and TechnologyShenzhen 518055China

With global surge in reservoir construction over the past decades,river systems worldwide have been profoundly ***,flow manipulation by reservoirs has altered the natural hydrological processes,resulting in extensive modifications of fluvial-marine *** the adverse ecological consequences of reservoirs has become a global concern and has garnered increasing *** Yellow River,as one of the most extensively manipulated river systems globally,has experienced substantial changes in the amount and timing of water discharge due to the presence of numerous reservoirs scattered throughout its catchment *** alterations have caused physicochemical changes in the estuary and subsequent modifications to the estuarine *** recent years,the Yellow River Conservancy Committee initiated the release of water through the xiaolangdi Dam during the major spawning period of fisheries,specifically in the spring,with the aim of improving the estuarine ecological *** 2011 to 2020,a total of 84.05 km^(3)of water was discharged from the xiaolangdi Reservoir during spring seasons,of which 40%(33.16 km^(3))constituted water impounded within the reservoir during preceding ***,the spring water discharge from the Yellow River to the sea increased significantly from 1.50 km^(3)/yr to 3.46 km^(3)/yr in the past decade,leading to a decrease in estuarine salinity by 1.6 *** estuarine fishery resources,such as fish eggs in the Yellow River estuary,have demonstrated evident *** reservoir regulation in the Yellow River,which has successfully enhanced spring water discharge and subsequently restored estuarine fishery resources,presents an effective attempt for mitigating the adverse ecological effects associated with reservoirs.

关键词： Reservoir regulation Water release Spring runoff Estuarine ecosystem Yellow River

Design and preparation of highly crystalline K-intercalated W@PCN:an efficient material for aniline elimination

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Rare Metals 2024年第3期43卷 1337-1342页

作者： Hao-Fei Li Kai-Wen Yu xiao-bi Jing Lei Duan Yi-yang Zhang School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou225002China School of Mechanical Engineering Yangzhou UniversityYangzhou225127China School of Material Science and Engineering Huazhong University of Science and TechnologyWuhan430071China School of Chemical Engineering and Materials Changzhou Institute of TechnologyChangzhou213032China Department of Basic Courses Army Engineering University of PLANanjing211101China

In this paper,we designed and prepared the polymeric carbon nitride-supported tungsten(W@PCN)*** were employed as the catalysts for photocatalytic oxidation of aniline in *** the process,H_(2)O_(2)was initially generated via the PCN-catalyzed *** by supported tungsten,aniline was oxidized by the in situ generated H_(2)O_(2)to obtain less toxicpoly aniline.

关键词： materials aniline crystalline

An unexpected approach to enhance specific surface area and mesopore amount of polyaniline by Zn doping

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Rare Metals 2024年第9期43卷 4585-4594页

作者： Zhi-Da Zhu Yu-Zhe Han xiao-bi Jing School of Mechanical Engineering Yangzhou UniversityYangzhou 225127China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

Poly-p-anisidine could be easily fabricated via the oxidative polymerization reaction of p-anisidine using H_(2)O_(2)as the green *** was unexpectedly found that zinc doping could significantly improve the adsorption ability of the material versus heavy metals such as Pb,Cu,Pd,Ag and *** of nitrogen adsorption–desorption experiments demonstrated that Zn doping could enhance the specific surface area and mesopore amount of the prepared material,which might facilitate its absorption to *** work not only provides a novel material for the treatment of heavy metal-polluted water but also leads to a nice mesoporous catalyst support for environment protection and organic synthesis,*** Zn-doped poly-panisidine can be employed as the catalyst support to prepare Cu@PANI-OMe/Zn or Pd@PANI-OMe/Zn for the oxidative degradation reaction of phenol or Suzuki–Miyaura coupling reactions,*** discloses a new strategy for fabricating the mesoporous polyaniline materials with profound application potential.

关键词： Surfaces Porous materials Rare metal concentration Adsorption Catalysis

Computational Experiments for Complex Social Systems:Integrated Design of Experiment System

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1175-1189页

作者： xiao Xue Xiangning Yu Deyu Zhou xiao Wang Chongke bi Shufang Wang Fei-Yue Wang College of Intelligence and Computing Tianjin UniversityTianjin 300350China School of Software Shandong UniversityJinan 250101China School of Artificial Intelligence Anhui UniversityHefei 230601China School of Geographic and Environmental Sciences Tianjin Normal UniversityTianjin 300387China Institute of Automation Chinese Academy of Sciences Beijing 100190China

Powered by advanced information industry and intelligent technology,more and more complex systems are exhibiting characteristics of the cyber-physical-social systems(CPSS).And human factors have become crucial in the operations of complex social *** mechanical analysis and social simulations alone are powerless for analyzing complex social *** this backdrop,computational experiments have emerged as a new method for quantitative analysis of complex social systems by combining social simulation(e.g.,ABM),complexity science,and domain ***,in the process of applying computational experiments,the construction of experiment system not only considers a large number of artificial society models,but also involves a large amount of data and *** a result,how to integrate various data,model and knowledge to achieve a running experiment system has become a key *** paper proposes an integrated design framework of computational experiment system,which is composed of four parts:generation of digital subject,generation of digital object,design of operation engine,and construction of experiment ***,this paper outlines a typical case study of coal mine emergency management to verify the validity of the proposed framework.

关键词： artificial system operations

A review of classical hydrogen isotopes storage materials

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Materials Reports(Energy) 2024年第1期4卷 23-42页

作者： yang Liu Zhiyi yang Panpan Zhou Xuezhang xiao Jiacheng Qi Jiapeng bi Xu Huang Huaqin Kou Lixin Chen State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou310027ZhejiangPR China Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province Hangzhou310013ZhejiangPR China Institute of Materials China Academy of Engineering PhysicsMianyang621907SichuanPR China

Hydrogen storage alloys(HSAs)are attracting widespread interest in the nuclear industry because of the generation of stable metal hydrides after tritium absorption,thus effectively preventing the leakage of radioactive *** used HSAs in the hydrogen isotopes field are Zr2M(M=Co,Ni,Fe)alloys,metallic Pd,depleted U,and ZrCo ***,Zr2M(M=Co,Ni,Fe)alloys are considered promising tritium-getter materials,and metallic Pd is utilized to separate and purify hydrogen ***,depleted U and ZrCo alloy are well suited for storing and delivering hydrogen ***,all the aforementioned HSAs need to modulate their hydrogen storage properties for complex operating *** this review,we present a comprehensive overview of the reported modification methods applied to the above *** is an effective amelioration method that mainly modulates the properties of HSAs by altering their local geometrical/electronic ***,microstructural modifications such as nano-sizing and nanopores have been used to increase the specific surface area and active sites of metallic Pd and ZrCo alloys for enhancing de-/hydrogenation *** combination of metallic Pd with support materials can significantly reduce the cost and enhance the pulverization ***,the poisoning resistance of ZrCo alloy is improved by constructing active surfaces with selective ***,the review is constructive for better understanding the properties and mechanisms of hydrogen isotope storage alloys and provides effective guidance for future modification research.

关键词： Hydrogen isotopes storage alloys Alloying Microstructural modification Surface modification Composite materials

Effect of quantitative consciousness index on seizure parameters during electroconvulsive therapy in patients with major depressive disorder

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World Journal of Psychiatry 2024年第9期14卷 1375-1385页

作者： Bang-Shu Zhao bi Deng Qi-bin Chen xiao Li You yang Su Min Department of Anesthesiology The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Anesthesiology The First Clinical College of Chongqing Medical UniversityChongqing 400016China Department of Psychiatry The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

BACKGROUND Electroconvulsive therapy(ECT)is both an effective treatment for patients with major depressive disorder(MDD)and a noxious *** some studies have explored the effect of sedation depth on seizure parameters in ECT,there is little research on the noxious stimulation response to *** this study,we used two electroencephalography(EEG)-derived indices,the quantitative consci-ousness(qCON)index and quantitative nociceptive(qNOX)index,to monitor sedation,hypnosis,and noxious stimulation response in patients with MDD undergoing acute *** Patients with MDD(n=24)underwent acute bilateral temporal ECT under propofol *** ECT,the patients were randomly divided into three groups according to qCON scores(qCON60-70,qCON50-60,and qCON40-50).Continuous qCON monitoring was performed 3 minutes before and during ECT,and the qCON,qNOX,vital signs,EEG seizure parameters,and complications during the recovery period were *** 24-item Hamilton Rating Scale for Depression,Zung’s Self-rating Depression Scale,and Montreal Cognitive Asse-ssment scores were evaluated before the first ECT session,after the fourth ECT session,and after the full course of *** A total of 193 ECT sessions were performed on 24 *** qCON index significantly affected the EEG seizure duration,peak mid-ictal amplitude,and maximum heart rate during ECT(P0.05).CONCLUSION Electrical stimulation at a qCON index of 60-70 resulted in better EEG seizure parameters without increasing complications in patients with MDD undergoing b

关键词： Electroconvulsive therapy Propofol Nociception Depression Electroencephalogram

Structure-regulated fluorine-containing additives to improve the performance of perovskite solar cells

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Nano Research 2024年第7期17卷 6080-6086页

作者： Peiya Chen xiaoman bi Hao Yan Yingjie Zhao Yihao Liu Zhuo Huang Qian xiao Yongpeng yang Shasha Zhang Yiqiang Zhang Yanlin Song Henan Institute of Advanced Technology College of ChemistrySchool of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China Key Laboratory of Green Printing CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences(ICCAS)Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyNational Laboratory for Molecular Sciences(BNLMS)Beijing 100190China

Perovskite solar cells(PSCs)have seen remarkable progress in recent years,largely attributed to various additives that enhance both efficiency and *** these,fluorine-containing additives have garnered significant interest because of their unique hydrophobic properties,effective defect passivation,and regulation capability on the crystallization ***,a targeted structural approach to design such additives is necessary to further enhance the performance of ***,fluoroalkyl ethylene with different fluoroalkyl chain lengths(CH_(2)CH(CF_(2))nCF_(3),n=3,5,and 7)as liquid additives is used to investigate influences of fluoroalkyl chain lengths on crystallization regulation and defect *** findings indicate that optimizing the quantity of F groups plays a crucial role in regulating the electron cloud distribution within the additive *** optimization fosters strong hydrogen bonds and coordination effects with FA+and uncoordinated Pb^(2+),ultimately enhancing crystal quality and device ***,1H,1H,2H-perfluoro-1-hexene(PF_(3))with the optimal number of F presents the most effective modulation effect.A PSC utilizing PF_(3)achieves an efficiency of 24.05%,and exhibits exceptional stability against humidity and thermal *** work sheds light on the importance of tailored structure designs in additives for achieving high-performance PSCs.

关键词： perovskite solar cells fluorine number additive structure crystallization regulation defect passivation