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Enhancing zinc-air battery performance by constructing threedimensional n-doped carbon coating multiple valence Co and MnO heterostructures

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nano Research 2024年第6期17卷 5104-5113页

作者： Qi Liu Panzhe Qiao Miaomiao Tong Ying Xie Xinxin Zhang kuo Lin Zhijian Liang Lei Wang Honggang Fu Key Laboratory of Superlight Materials and Surface Technology of the Ministry of Education of the People’s Republic of China Harbin Engineering UniversityHarbin 150080China Key Laboratory of Functional inorganic Material Chemistry Ministry of Education of the People’s Republic of China Heilongjiang UniversityHarbin 150080China Shanghai institute of Applied Physics Chinese Academy of SciencesShanghai 201204China

Developing highly-efficient bifunctional oxygen evolution reaction(OER)and oxygen reduction reaction(ORR)electrocatalysts is crucial for the widespread application of rechargeable Zn-air batteries(ZABs).Herein,an efficiency electrodeposition and pyrolytic strategy to synthesize the three-dimensional(3D)n-doped carbon coating multiple valence Co and MnO heterostructures supported on carbon cloth substrate(Co-MnO@nC/CC).it contains Co-Co,Co-n,and Co-O bonds,which synergistically enhance the oxygen reaction activity with *** exhibits a working potential of 1.473 V at 10 mA·cm^(−2)for OER and onset potential of 0.97 V for *** calculations demonstrate that the synergy between cobalt and manganese species could optimize the d-band center and reduce the energy barrier of Co-MnO@nC/CC for both OER and ORR ***,the MnO acts as the main OER active site could significantly optimize the energy barrier of O*→OOH*,thus further promoting the OER *** can be directly used as the air-cathode for both liquid-state and solid-state ZABs,which could afford a small voltage gap of 0.75 V at 10 mA·cm^(−2),a high power density of 172.5 mW·cm^(−2)and a long-term durability for 400 h,surpassing those of the Pt/C+RuO_(2)-based ***,the assembled batteries show potential applications in portable devices.

关键词： heterostructure synergy valence cobalt manganese oxide Zn-air battery

Flexible nanoimprint lithography enables high-throughput manufacturing of bioinspired microstructures on warped substrates for efficient iii-nitride optoelectronic devices

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Science Bulletin 2024年第13期69卷 2080-2088页

作者： Siyuan Cui Ke Sun Zhefu Liao Qianxi Zhou Leonard Jin Conglong Jin Jiahui Hu kuo-Sheng Wen Sheng Liu Shengjun Zhou Center for Photonics and Semiconductors School of Power and Mechanical EngineeringWuhan UniversityWuhan 430072China The institute of Technological Sciences Wuhan UniversityWuhan 430072China Department of Mechanical and Mechatronics Engineering University of WaterlooWaterloo ONN2L 3G1Canada Jiangxi SMTC Semiconductor Co. Ltd.Nanchang 330096China

iii-nitride materials are of great importance in the development of modern optoelectronics,but they have been limited over years by low light utilization rate and high dislocation densities in heteroepitaxial films grown on foreign substrate with limited refractive index contrast and large lattice ***,we demonstrate a paradigm of high-throughput manufacturing bioinspired microstructures on warped substrates by flexible nanoimprint lithography for promoting the light extraction *** design a flexible nanoimprinting mold of copolymer and a two-step etching process that enable high-efficiency fabrication of nanoimprinted compound-eye-like Al2O3 microstructure(nCAM)and nanoimprinted compound-eye-like SiO_(2)microstructure(nCSM)template,achieving a 6.4-fold increase in throughput and 25%savings in economic costs over stepper projection *** to nCAM template,we find that the nCSM template can not only improve the light extraction capability,but also modulate the morphology of Aln nucleation layer and reduce the formation of misoriented Gan grains on the inclined sidewall of microstructures,which suppresses the dislocations generated during coalescence,resulting in 40%reduction in dislocation *** study provides a low-cost,high-quality,and high-throughput solution for manufacturing microstructures on warped surfaces of iii-nitride optoelectronic devices.

关键词： Flexible nanoimprint lithography Bioinspired Micro-and nano-manufacturing iii-nitride epitaxy Optoelectronic devices

Enhancing Hyper-Spectral image Classification with Reinforcement Learning and Advanced Multi-Objective Binary Grey Wolf Optimization

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Computers, Materials & Continua 2024年第6期79卷 3469-3493页

作者： Mehrdad Shoeibi Mohammad Mehdi Sharifi nevisi Reza Salehi Diego Martín Zahra Halimi Sahba Baniasadi TheWPi Business School Worcester Polytechnic InstituteWorcesterMassachusetts01609-2280USA Department of industrial Engineering Iran University of Science and TechnologyNarmakTehran16846-13114Iran ETSi de Telecomunicación Universidad Politécnica de MadridAv.Complutense 30Madrid28040Spain Department of Civil and Environmental Engineering University of MarylandCollege ParkMaryland20742USA Department of industrial Engineering College of EngineeringUniversity of HoustonHoustonTexas77204USA

Hyperspectral(hs)image classification plays a crucial role in numerous areas including remote sensing(RS),agriculture,and the monitoring of the *** band selection in hs images is crucial for improving the efficiency and accuracy of image *** process involves selecting the most informative spectral bands,which leads to a reduction in data *** on these key bands also enhances the accuracy of classification algorithms,as redundant or irrelevant bands,which can introduce noise and lower model performance,are *** this paper,we propose an approach for hs image classification using deep Q learning(DQL)and a novel multi-objective binary grey wolf optimizer(MOBGWO).We investigate the MOBGWO for optimal band selection to further enhance the accuracy of hs image *** the suggested MOBGWO,a new sigmoid function is introduced as a transfer function to modify the wolves’*** primary objective of this classification is to reduce the number of bands while maximizing classification *** evaluate the effectiveness of our approach,we conducted experiments on publicly available hs image datasets,including Pavia University,Washington Mall,and indian Pines *** compared the performance of our proposed method with several state-of-the-art deep learning(DL)and machine learning(ML)algorithms,including long short-term memory(LSTM),deep neural network(Dnn),recurrent neural network(Rnn),support vector machine(SVM),and random forest(RF).Our experimental results demonstrate that the Hybrid MOBGWO-DQL significantly improves classification accuracy compared to traditional optimization and DL ***-DQL shows greater accuracy in classifying most categories in both datasets *** the indian Pine dataset,the MOBGWO-DQL architecture achieved a kappa coefficient(KC)of 97.68%and an overall accuracy(OA)of 94.32%.This was accompanied by the lowest root mean square error(RMSE)of 0.94,indicating very precise

关键词： Hyperspectral image classification reinforcement learning multi-objective binary grey wolf optimizer band selection

Analysis of the Properties of 44 ABC Transporter Genes from Biocontrol Agent Trichoderma asperellum ACCC30536 and Their Responses to Pathogenic Alternaria alternata Toxin Stress

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Analysis of the Properties of 44 ABC Transporter Genes from ...

On ACTiOn-MiniMiZinG SOLUTiOnS OF THE TWO-CEnTER PROBLEM

中国植物病理学会2024年学术年会

作者： DU Huaying ZAHnG Yuzhou LiU kuo GU Peiwen CAO Shuang GAO Xiang WAnG Zhiying LiU Zhihua YU Zeyang School of Agriculture Ningxia University School of Forestry Northeast Forestry University College of Forestry Shenyang Agricultural University

ATP-binding cassette(ABC) transporters are involved in transporting multiple substrates,such as toxins,and may be important for the survival of Trichoderma when encountering biotic *** this study,genome searching revealed that there are 44 ABC transporters encoded in the genome of Trichoderma *** ABC transporters were divided into six types based on three-dimensional(3 D) structure prediction,of which four,represented by 39 ABCs,are involved in transport and the remaining two,represented by 5 ABCs,are involved in regulating *** characteristics of nucleotide-binding domain(nBD) are important in the identification of ABC *** though the 3 D structures of the 79 nBDs in the 44 ABCs are similar,multiple sequence alignment showed they can be divided into three *** total,794 motifs were found in the promoter regions of the 44 ABC genes,of which 541 were cis-regulators related to stress *** characterize how their ABCs respond when *** interact with fungi or plants,*** was cultivated in either minimal media(MM) control,C-hungry,n-hungry,or poplar medium(PdPap) to simulate normal conditions,competition with pathogens,interaction with pathogens,and interaction with plants,*** results show that 17 of 39 transport ABCs are highly expressed in at least one condition,whereas four of the five translation-regulating ABCs are highly expressed in at least one *** these 21 highly expressed ABCs,6 were chosen for RT-qPCR expression under the toxin stress of phytopathogen Alternaria alternata,and the results show ABC01,ABC04,ABC05,and ABC31 were highly expressed and may be involved in pathogen interaction and detoxifying toxins from ***.

关键词： biological control ABC protein detoxification

来源： cnki会议评论

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Acta Mathematica Scientia 2022年第6期42卷 2450-2458页

作者： kuo-Chang CHEn Department of Mathematics National Tsing Hua UniversityHsinchuTaiwanChina

The two-center problem,also known as Euler's three-body problem,is a classic example of integrable *** its periodic solutions,planetary type solutions are periodic solutions which enclose both *** by advances on n-body and n-center problems via variational techniques developed during the past two decades,a recent paper(***.2022)shows the minimizing property of planetary type solutions for any given masses of centers at fixed positions,as long as the period is above a mass-dependent threshold *** this paper,we provide further discussions regarding this minimizing *** particular,we improve the above-mentioned mass-dependent threshold value by refining estimates for action values.

关键词： two-center problem n-body problem variational method collision singularity

On generalized impulsive piecewise constant delay differential equations

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Science China Mathematics 2015年第9期58卷 1981-2002页

作者： CHiU kuo-Shou Departamento de Matemtica Facultad de Ciencias Bsicas Universidad Metropolitana de Ciencias de la Educación

A variation of parameters formula with Green function type and Gronwall type integral inequality are proved for impulsive differential equations involving piecewise constant delay of generalized type. Some results for piecewise constant linear and nonlinear delay differential equations with impulsive effects are *** include existence and uniqueness theorems, a variation of parameters formula, integral inequalities, the oscillation property and some applications.

关键词： impulsive differential equation piecewise constant delay of generalized type variation of parameters formula Gronwall integral i

ASYMPTOTiC EQUiVALEnCE OF ALTERnATELY ADVAnCED AnD DELAYED DiFFEREnTiAL SYSTEMS WiTH PiECEWiSE COnSTAnT GEnERALiZED ARGUMEnTS

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Acta Mathematica Scientia 2018年第1期38卷 220-236页

作者： kuo-Shou CHiU departamento de matemática facultad de ciencias básicas universidad metropolitana de ciencias de la educación Jose Pedro Alessandri 774 Santiago Chile

in this paper, we investigate the existence, uniqueness and the asymptotic equiv- alence of a linear system and a perturbed system of differential equations with piecewise alternately advanced and retarded argument of generalized type （DEPCAG）. This is based in the study of an equivalent integral equation with Cauchy and Green matrices type and in a solution of a DEPCAG integral inequality of Gronwall type. Several examples are also given to show the feasibility of results.

关键词： piecewise constant argument of generalized type hybrid equations equivalence asymptotic behavior Gronwall's inequality

A Class of normal Weighted Composition Operators on the Fock Space of C^n

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Acta Mathematica Sinica,English Series 2015年第11期31卷 1789-1797页

作者： Lian kuo ZHAO School of Mathematics and Computer Science Shanxi Normal University

This paper characterizes a class of normal weighted composition operators and their spectrum on the Fock space of Cn.

关键词： Fock space weighted composition operator normal spectrum

Characteristics and prognosis of small bowel tumors:A retrospective study

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World Journal of Clinical Cases 2024年第34期12卷 6696-6704页

作者： Fang-Chen Liu Ching-hsiang Wang Peng-Jen Chen Yu-Lueng Shih hsuan-Hwai Lin Jung-Chun Lin Wei-kuo Chang Tsai-Yuan hsieh Gen-Min Lin Tien-Yu Huang Division of Gastroenterology Department of Internal MedicineTri-Service General HospitalNational Defense Medical CenterTaipei 11490Taiwan Department of internal Medicine Taoyuan Armed Forces General HospitalTaoyuan 325208Taiwan Department of Medicine Tri-Service General Hospital and National Defense Medical CenterTaipei 114Taiwan Department of Medicine Hualien Armed Forces General HospitalHualien 970Taiwan Taiwan Association for the Study of Small intestinal Diseases Taoyuan 33305Taiwan

BACKGROUnD Small bowel tumors(SBTs)are a heterogeneous group of difficult-to-diagnose tumors that account for 2%-5%of all gastrointestinal ***-balloon enteroscopy greatly enhances the diagnosis and treatment of ***,few epidemiological studies have been conducted in Taiwan to determine the clinical profile of *** To investigate the clinical characteristics,managements and prognosis of SBTs in a medical center in *** The study enrolled 51 patients aged 58.9±8.8 years(range,22-93)diagnosed with SBTs from november 2009 to July *** retrospectively recorded clinical characteristics,indications,endoscopic findings,pathological results,management,and outcomes for further *** A male preponderance was observed(56.8%).The most common indications were suspected small intestinal tumors(52.9%)and obscure gastrointestinal bleeding(39.2%).The most common tumor location was the ileum(41.2%).The performance of imaging studies(P=0.004)and the types of findings(P=0.005)differed significantly between malignant and benign *** most frequent imaging finding was a small intestinal mass(43.1%).The top three malignant tumor types were gastrointestinal stromal tumors(GiSTs),adenocarcinomas,and ***,the proportions of benign and malignant tumors were 27.5%and 72.5%,*** survival rates of patients with malignant tumors in the GiST and non-GiST groups differed significantly(P=0.015).Kaplan–Meier survival analysis showed a significant difference in survival between patients in the malignant and benign groups(P=0.04).All patients with lymphoma underwent chemotherapy(n=7/8,87.5%),whereas most patients with GiSTs underwent surgery(n=13/14,92.8%).COnCLUSiOn Patients with GiSTs have a significantly higher survival rate than those with other malignant ***,a large-scale nationwide study is warranted to evaluate the population-based epidemiology of SBTs.

关键词： Gastrointestinal bleeding intestinal neoplasms Single-balloon enteroscopy,survival rate