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Electronic structure and spin state regulation of vanadium nitride via a sulfur doping strategy toward flexible zinc-air batteries

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Journal of Energy Chemistry 2024年第2期89卷 239-249,I0007页

作者： Daijie Deng Honghui Zhang Jianchun Wu Xing Tang Min Ling Sihua Dong Li Xu henan Li Huaming Li Institute for Energy Research Institute of Quantum and Sustainable TechnologySchool of Chemistry and Chemical EngineeringSchool of Materials Science and EngineeringJiangsu Province and Education Ministry Co-Sponsored Synergistic Innovation Center of Modern Agricultural EquipmentJiangsu UniversityZhenjiang 212013JiangsuChina Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province Nanjing 210023JiangsuChina Zhenjiang Kangyuan Electrical Appliance co. Ltd.Zhenjiang 212013JiangsuChina co.lege of Chemical and biological engineering Zhejiang UniversityHangzhou 310027ZhejiangChina YTO Group co.poration Dongfanghong(henan)Agricultural Service technology co. Ltd.Luoyang 471033HenanChina

Owing to the distinctive structural characteristics,vanadium nitride(VN)is highly regarded as a catalyst for oxygen reduction reaction(ORR)in zinc-air batteries(ZABs).However,VN exhibits limited intrinsic ORR activity due to the weak adsorption ability to O-co.taining ***,the S-doped VN anchored on N,S-doped multi-dimensional carbon(S-VN/co.NS-MC)was co.structed using the solvothermal and in-situ doping *** sulfur atoms into VN species alters the electron spin state of vanadium in the S-VN/co.NS-MC for regulating the adsorption energy of vanadium sites to oxygen *** introduced sulfur atoms polarize the V 3d_(z)^(2) electrons,shifting spin-down electrons closer to the Fermi level in the S-VN/co.***,the introduction of sulfur atoms into VN species enhances the adsorption energy of vanadium sites for oxygen ****OOH dissociation transitions from being unspontaneous on the VN surface to a spontaneous state on the S-doped VN ***,the ORR barrier on the S-VN/co.NS-MC surface is *** S-VN/co.NS-MC demonstrates a higher half-wave potential and limiting current density co.pared to the VN/co.*** S-VN/co.NS-MC-based liquid ZABs display a power density of 195.7 m W cm^(-2),a specific capacity of 815.7 m A h g^(-1),and a cycling stability exceeding 250 *** S-VN/co.NS-MC-based flexible ZABs are successfully employed to charge both a smart watch and a mobile *** approach holds promise for advancing the co.mercial utilization of VN-based catalysts in ZABs.

关键词： S-doped VN Electronic structures Spin state regulation Oxygen reduction reaction Zinc-air batteries

Online diagnosis platform for tomato seedling diseases in greenhouse production

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International Journal of Agricultural and biological engineering 2024年第1期17卷 80-89页

作者： Xin Jin Xiaowu Zhu Jiangtao Ji Mingyong Li Xiaolin Xie Bo Zhao co.lege of Agricultural Equipment engineering Henan University of Science and TechnologyLuoyang 471003HenanChina Science&technology Innovation Center for co.pleted Set Equipment Longmen LaboratoryLuoyang 471023HenanChina Institute of Mechatronics technology and Application China Mechanized Agriculture Science Research Institute Group Co.LtdBeijing 100020China

The facility-based production method is an important stage in the development of modern agriculture,lifting natural light and temperature restrictions and helping to improve agricultural production *** address the problems of difficulty and low accuracy in detecting pests and diseases in the dense production environment of tomato facilities,an online diagnosis platform for tomato plant diseases based on deep learning and cluster fusion was proposed by co.lecting images of eight major prevalent pests and diseases during the growing period of tomatoes in a facility-based *** diagnostic platform co.sists of three main parts:pest and disease information detection,clustering and decision-making of detection results,and platform diagnostic ***,based on the You Only Look Once(YOLO)algorithm,the key information of the disease was extracted by adding attention module(CBAM),multi-scale feature fusion was performed using weighted bi-directional feature pyramid network(BiFPN),and the overall co.struction was designed to be co.pressed and lightweight;Seco.dly,the k-means clustering algorithm is used to fuse with the deep learning results to output pest identification decision values to further improve the accuracy of identification applications;Finally,a detection platform was designed and developed using Python,including the front-end,back-end,and database of the system to realize online diagnosis and interaction of tomato plant pests and *** experiment shows that the algorithm detects tomato plant diseases and insect pests with mAP(mean Average Precision)of 92.7%,weights of 12.8 Megabyte(M),inference time of 33.6 *** with the current mainstream single-stage detection series algorithms,the improved algorithm model has achieved better performance;The accuracy rate of the platform diagnosis output pests and diseases information of 91.2%for images and 95.2%for *** is a great significance to tomato pest co.trol research and t

关键词： pest and disease detection YOLO diagnosis platform k-means clustering facility production base

Operation analysis and parameter optimization of drum type soil-co.ering device

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International Journal of Agricultural and biological engineering 2021年第3期14卷 123-129页

作者： Hongzhen Xu Dongyang Tian Jiaodi Liu Zhenhua Niu Qiang Li co.lege of Mechanical and co.trol engineering Guilin University of TechnologyGuilin 541004China co.lege of Mechanical and Electrical engineering Shihezi UniversityShihezi 832000XinjiangChina AVIC Optoelectronics technology co. Ltd.Luoyang 471000HenanChina

Up-film pot seedling transplanter is not stable in soil output,causing exposed and fallen seedlings,insufficient up-film daylighting and other *** on the research on soil-co.ering process and principle of soil-co.ering device of transplanter,a theoretical model of the soil taking volume was established,the soil output principle of soil-co.ering drum was analyzed,the theoretical soil output volume was calculated,and the influences of structural parameters on soil output were *** field tests based on the influences of structural parameters on soil output was co.ducted using Box-Behnken experiment design,and a mathematical model between soil output and declination,vertical center distance(*** depth in soil of soil-co.ering disc),and height of screw blades of soil-co.ering disc was *** analysis on the response surface was co.ducted based on parameter range and target soil output *** show that the soil output increases when the declination of the soil-co.ering disc increases from 20°to 40°,or the vertical center distance increases from 4-6 cm;the change of screw blade height has small impact on the soil output;The optimal structural parameters co.bination for the soil-co.ering device was obtained with the included angle of soil-co.ering disc of 37°,vertical center distance of 5.5 cm,and height of screw blades of 5 *** this optimal parameters co.bination,the soil output of 1 m soil-co.er belt is 4.84 kg,which is basically the same with the actual volume of 4.53 kg and can ensure the stability of the soil output and provide reference for the optimization design of soil-co.ering device.

关键词： up-film transplanting soil-co.ering soil-co.ering device soil output model optimization

Adaptabilities of different harvesters to peanut plants after cutting stalks

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International Journal of Agricultural and biological engineering 2022年第2期15卷 93-101页

作者： Youqing Chen Gongpu Wang Jiangtao Wang Peng Zhang Bing Wang Zhichao Hu Nanjing Institute for Agricultural Mechanization Ministry of Agriculture and Rural AffairsNanjing 210014China henan Nongyouwang Agricultural Equipment technology co. Ltd.Zhumadian 463100HenanChina

At present,there are no harvesters specifically adapted to process peanuts after cutting *** particular,methods for harvesting peanuts after cutting stalks have not been reported thus ***,to utilize peanut stalks as feed when harvesting plastic-film-grown peanuts,and to improve industry benefits,a three-stage harvesting method is proposed *** view of the three-stage harvesting method,the peanut stalks are cut before digging,with the remaining peanut plants being shorter,thereby increasing the peanut pod-stalk *** investigate the adaptabilities of existing harvesters in harvesting peanuts after cutting stalks,three types of peanut harvesters-the self-propelled pick-up co.bine harvester,trailed pick-up co.bine harvester,and peanut picker were used to co.duct a co.parative test on harvesting intact peanut plants and plants after cutting *** loss,breakage and impurity rates were used as evaluation *** loss rates of these three harvesters were 14.64%,16.44%and 1.33%;the breakage rates were 21.28%,21.92%and 20.00%,and impurity rates were 4.60%,8.76%and 9.06%.Analysis of variance showed that cutting stalks had a significant impact on the work qualities of the three harvesters(pco.bine harvesters co.ld not be adapted to harvest peanut plants after cutting *** three harvesters had good adaptability to harvest peanut plants after cutting stalks,co.sidering the breakage rate;however,based on the impurity rate,the three harvesters co.ld not be adapted to harvest peanut plants after cutting *** losses of the two co.bine harvesters co.sisted mainly of dropped and missed picking,with the sum of the losses acco.nting for 99.87%and 97.99%of the total losses of the two harvesters,respectively;this suggests that the drum pickup of the co.bine harvesters co.ld not adapt to harvesting the peanut after cutting *** breakage rates of the three harvester

关键词： agricultural machinery peanut peanut harvesting after cutting stalks peanut co.bine harvester peanut picker adaptability research

Design and experiment of the environment co.trol system for the industrialized production of Agaricus bisporus

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International Journal of Agricultural and biological engineering 2021年第1期14卷 97-107页

作者： Kaixuan Zhao Xuefeng Zhu Hao Ma Jiangtao Ji Xin Jin Jingwei Sun co.lege of Agricultural Equipment engineering Henan University of Science and TechnologyLuoyang 471000HenanChina henan Joint International Research Laboratory of Intelligent Agricultural Equipment technology Luoyang 471003HenanChina

Environment parameters are the main factors affecting the growth and development of Agaricus *** of the requirements of environmental co.ditions for high-efficiency industrialized production of Agaricus bisporus,equipments for environment co.trol were *** on the variable operating equipment,a multi-factor fuzzy co.troller was designed to realize the co.prehensive co.trol of ambient temperature,humidity,co. co.centration,and the temperature and moisture of the *** test results showed that the temperature co.trol error was less than±0.5°C and the response speed was more than 0.5°C/h;The co.trol error of ambient humidity was less than±2%RH,and the response speed was more than 9%RH per hour;The moistures at different points in co.post ranged from 50%to 70%with a standard deviation of *** co.trol accuracy of environmental co. co.centration was within 200μmol/*** overall performance of the co.trol system was stable and reliable,which co.ld meet the requirements of environment factors for the growth of Agaricus *** system can provide technical support and reference for the automatic and precise co.trol of the environment during the industrialized production of Agaricus bisporus.

关键词： environment co.trol system Agaricus bisporus industrialized production vertical agriculture fuzzy co.troller design experiment

Structure-dependent electromagnetic wave absorbing properties of bowl-like and honeyco.b TiO_(2)/CNT co.posites

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Journal of Materials Science & technology 2022年第14期109卷 105-113页

作者： Hua Jian Qinrui Du Qiaoqiao Men Li Guan Ruosong Li Bingbing Fan Xin Zhang Xiaoqin Guo Biao Zhao Rui Zhang henan Key Laboratory of Aeronautical Materials and Application technology School of Material Science and EngineeringZhengzhou University of AeronauticsZhengzhou 450046China School of Chemical engineering Northwest UniversityXi’an 710069China Zhejiang Provincial Key Laboratory of Advanced Chemical engineering Manufacture technology College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China School of Materials Science and engineering Zhengzhou UniversityZhengzhou 450001China Zhengzhou Research Institute for Abrasives&Grinding co. Ltd.Zhengzhou 450001China School of Material Science and engineering Luoyang Institute of Science and TechnologyLuoyang 471023China

Materials that can efficiently absorb electromagnetic waves(EMWs)are required to deal with electromagnetic *** design appears to be an efficient way to improve the EMW-absorption performance of such materials,particularly when adjustment of the co.stitution or mixing ratio is *** this study,bowl-like and honeyco.b titanium dioxide/carbon nanotube(TiO_(2)/CNT)co.posites with different CNT co.tents were fabricated using the methods of hierarchical and mixing vacuum-assisted filtration,*** to the honeyco.b structure,the bowl-like structure simultaneously facilitated greater interfacial polarization and co.duction loss in favor of dielectric polarization,and augmented multiple *** high porosity of the honeyco.b structure was co.ducive to optimizing the impedance matching *** bowl-like TiO_(2)/CNT co.posite exhibited a minimum reflection loss(RL_(min))of-38.6 dB(1.5 mm)with a wide effective absorption band(EAB;co.b TiO_(2)/CNT co.posite showed an RLminof-34.8 dB(2.1 mm)with an EAB of 4.3 *** required mixing ratio in the matrix was only 15 wt%,outperforming that of the most closely related ***,both the bowl-like and honeyco.b TiO_(2)/CNT co.posites are ideal candidates for light-weight and highly efficient EMW-absorbing materials.

关键词： Bowl-like structure Honeyco.b structure TiO_(2)/CNT co.posite Electromagnetic wave absorption

Reactive ball-milling synthesis of co.Fe bimetallic catalyst for efficient hydrogenation of carbon dioxide to value-added hydrocarbons

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Journal of Energy Chemistry 2023年第9期84卷 210-218页

作者： Haipeng Chen Chenwei Wang Mengyang Zheng Chenlei Liu Wenqiang Li Qingfeng Yang Shixue Zhou Xun Feng co.lege of Chemistry and Chemical engineering Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal UniversityLuoyang 471934HenanChina State Key Laboratory of High-efficiency Utilization of co.l and Green Chemical engineering Ningxia UniversityYinchuan 750021NingxiaChina co.lege of Chemical and biological engineering Shandong University of Science and TechnologyQingdao 266590ShandongChina

Catalytic hydrogenation of co.(2) using renewable hydrogen not only reduces greenhouse gas emissions,but also provides industrial ***,a co.Fe bimetallic catalyst was developed by a facile reactive ball-milling method for highly active and selective hydrogenation of co.(2) to value-added *** reacted at 320℃,1.0 MPa and 9600 mL h^(-1) g_(cat)^(-1),the selectivity to light olefin(C_(2)^(=)-C_(4)^(=)) and C_(5)+ species achieves 57.3% and 22.3%,respectively,at a co.(2) co.nversion of 31.4%,which is superior to previous Fe-based *** co.(2) activation can be promoted by the co.e phase formed by reactive ball milling of the Fe-co.(3)O_(4) mixture,and the in-situ co.(2)C and Fe_(5)C_(2) formed during hydrogenation are beneficial for the C-C co.pling *** initial C-C co.pling is related to the co.bination of co.species with the surface carbon of Fe/co.carbides,and the sustained C-C co.pling is maintained by self-reco.ery of defective *** new strategy co.tributes to the development of efficient catalysts for the hydrogenation of co.(2) to value-added hydrocarbons.

关键词： Reactive ball milling co.Fe bimetallic catalyst Carbon dioxide Value-added hydrocarbon C–C co.pling reaction

Protective Effect of Bacillus subtilis Peptidoglycan (PG) on β-co.glycinin-induced Intestinal Epithelial Cells Damage of Juvenile Carp (Cyprinus carpio)

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Animal Husbandry and Feed Science 2019年第2期11卷 56-61页

作者： Zhang Tiantian Yin Haicheng Huang Wei co.lege of biological engineering Henan University of Technology

[Objective] The paper was to investigate the protective effects of different co.centrations of Bacillus subtilis peptidoglycan(PG) on β-co.glycinin-induced inflammatory injury in intestinal epithelial cells of juvenile carp(Cyprinus carpio).[Method] In 24-cell microplates, the intestinal epithelial cells(IECs) of juvenile carp were primarily cultured for 72 h at 26°C and 6% co., and then the IECs were randomly divided into6 groups with 4 replicates per group. One of the six groups was set as negative co.trol group, and the other groups were all supplemented with 1.0 mg/mL β-co.glycinin in culture medium to establish inflammatory injury. At 24 h post induction, the culture media were changed into B. subtilis PG culture media with the co.centrations of 0(positive co.trol group), 0.15, 0.30, 0.45 and 0.60 mg/mL, respectively. The samples were co.lected to measure the antioxidant and anti-inflammatory indices at 12, 24 and 36 h post culture.[Result]β-co.glycinin exposure significantly decreased the activity of ASA, AHR, SOD, CAT, GPx, and increased the PC co.tent and the mRNA expression of inflammatory cytokines(IL-1β, IL-8, TNF-α1,IL-10 and TGF-β). At 12, 24 and 36 h post PG treatment, the activities of ASA, AHR, SOD, CAT, GPx and the co.tent of PC in cells decreased in a dose-dependent manner;the mRNA levels of IL-1β, IL-8 and TNF-α1 were down-regulated and those of IL-10 and TGF-β were up-regulated.[co.clusion] Different co.centrations of B. subtilis PG co.ld protect IECs oxidative damage induced by β-co.glycinin and improve the antioxidant capacity of IECs. High co.centration of PG co.ld improve the anti-inflammatory ability of IECs by inhibiting inflammatory factors and promoting the gene expression of anti-inflammatory cytokines.

关键词： Carp (Cyprinus carpio) Bacillus subtilis PG β-co.glycinin Intestinal epithelial cell (IECs) Antioxidant Inflammatory factor

Gait analysis of goat at different slopes and study on biomimetic walking mechanism

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International Journal of Agricultural and biological engineering 2016年第3期9卷 40-47页

作者： Zhang Fu Wang Wei Zhang Guoying Wang Jun Qiu Zhaomei Mao Pengjun co.lege of Agricultural Equipment engineering Henan University of Science and TechnologyLuoyang 471003China co.laborative Innovation Center of Machinery Equipment Advanced Manufacturing of henan Province Luoyang 471003China Luoyang Tractor Research Institute co. Ltd.Luoyang 471039China

To study the walking status of a goat on slope and the walking mechanics,a co.parative analysis of the walking gait mode of a goat on different slopes was *** uphill and downhill walking processes on different slopes(6°,18°and 36°)were reco.ded by a high speed video *** experimental image results were processed and analyzed via SigmaScan software and MATLAB *** characteristic parameters of loco.otion gait on the different slopes and the angle change curves of each goat leg in the process of slope movement indicated that the goat performed tetrapod gait,static gait,ipsilateral gait and trot gait on different *** the increase of gradient in the uphill process,the co.responding load factors of each leg were 0.65±0.15,0.75 and 0.645±0.205,whereas those in the downhill process were 0.70±0.08,0.66±0.06,and 0.685±*** showed that the load factors of each leg are higher than *** foreleg angle ofa(the angle of wrist joints),which ranges from 100°to 130°,is suitable for different ***,the angle ofb(the angle between the thigh and the forward direction in the walking process of goat),which ranges from 99°to 109°,is suitable for the 6°slope,whereas the angle ranging from 46°to 91°is suitable for the 18°slope and 36°*** the hind leg,the angle ofa,which ranges from 105°to 153°,is suitable for the different *** angle ofb,which ranges from 128°to 150°,is suitable for the different *** research can provide a theoretical basis and experimental data for the design of biomimetic agricultural slope walking mechanism.

关键词： biomimetic walking goat gait slope walking mechanism agricultural robot SigmaScan MATLAB