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Electric-double-layer-gated 2. transistors for bioinspired sensors and neuromorphic devices

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International Journal of Smart and Nano Materials 2024年第1期15卷 238-259页

作者： Xiangde Lin Yonghai Li Yanqiang Lei qijun Sun Department of Research Zhoupu Hospital Affliated to Shanghai University of Medicine&Health SciencesShanghaiChina Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijingChina Center on Nanoenergy Research School of Chemistry and Chemical EngineeringGuangxi UniversityNanningChina

Electric double layer(EDL)gating is a technique in which ions in an electrolyte modulate the charge transport in an electronic material through electrical field effects.A sub-nanogap capacitor is induced at the interface of electrolyte/semiconductor under the external electrical field and the capacitor has an ultrahigh capacitance density(~μF cm-2..Recently,EDL gating technique,as an interfacial gating,is widely used in two-dimensional(2.)crystals for various sophisti-cated materials characterization and device *** review introduces the EDL-gated transistors based on 2. materials and their applications in the field of bioinspired optoelectronic detection,sen-sing,logic circuits,and neuromorphic computation.

关键词： Electrical double layer ,transistors 2. materials sensors applications

Bond behavior of the interface between concrete and basalt fiber reinforced polymer bar after freeze–thaw cycles

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Frontiers of Structural and Civil Engineering 2024年第4期18卷 630-641页

作者： Li HONG Mingming LI Congming DU Shenjiang HUANG Binggen ZHAN qijun YU Department of Structural Engineering Hefei University of TechnologyHefei 230009China Key Laboratory of Performance Evolution and Control for Engineering Structures Tongji UniversityShanghai 200092China Engineering Research Center of Low-carbon Technology and Equipment for Cement-based Materials(Ministry of Education) Hefei University of TechnologyHefei 230009China Hefei Cement Research&Design Institute Corporation Ltd. Hefei 230051China

The shear bond of interface between concrete and basalt fiber reinforced polymer(BFRP)bars during freeze–thaw(F–T)cycles is crucial for the application of BFRP bar-reinforced concrete structures in cold *** this study,48 groups of pull-out specimens were designed to test the shear bond of the BFRP-concrete interface subjected to F–T *** effects of concrete strength,diameter,and embedment length of BFRP rebar were investigated under numerous F–T *** results showed that a larger diameter or longer embedment length of BFRP rebar resulted in lower interfacial shear bond behavior,such as interfacial bond strength,initial stiffness,and energy absorption,after the interface goes through F–T ***,higher concrete strength and fewer F–T cycles were beneficial for enhancing the interfacial bond ***,a three-dimensional(3D)interfacial model based on the finite element method was developed,and the interfacial bond behavior of the specimens was analyzed ***,a degradation bond strength subjected to F–T cycles was predicted by a proposed mechanical *** predictions were fully consistent with the tested *** model demonstrated accuracy in describing the shear bond behavior of the interface under numerous F–T cycles.

关键词： F-T cycle interface shear bond strength bond stress−slip curves bond degradation

Surface-state controlled synthesis of hydrophobic and hydrophilic carbon dots

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Nano Research 2024年第5期17卷 4391-4399页

作者： Chan Wang Yuan Fang Mi Zhang Huan Zhuo qijun Song Han Zhu Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China Jiangsu Snow Leopard Household Chemical Co. Ltd.Wuxi 214400China

It is of great significance to synthesize carbon dots(CDs)with desirable hydrophilicity for the ever-growing application of CDs in different *** this study,the hydrophilic and hydrophobic CDs were facilely prepared by solvothermal treatment of o-dihydroxybenzene and urea in N,N-dimethylformamide(DMF).Optimization experiments revealed that the solvothermal temperature has a great impact on the surface states of the *** hydrophobic CDs with a contact angle of 110.7°was obtained at 2.0℃.The structural and optical characterizations,along with theoretical calculations elucidated that the lipophilic nature of the CDs was resulting from the formation of polymer *** presence of extended conjugated sp^(2.-domains and amino groups contributed to the red emission of the CDs synthesized at low reaction temperatures(160-2.0℃).With the further increase of solvothermal temperature,the hydrophobic CDs were gradually transformed to the hydrophilic state accompanying the blue shift of the fluorescence of the *** highly hydrophilic CDs with a contact angle of 2..9°were obtained at 2.0℃ due to the increased formation of hydrophilic functional groups on the surface of *** red emissive CDs exhibited a sensitive color and fluorescence response to ethanol content while the fluorescence of the blue emissive CDs remained *** combining the two kinds of CDs,a dual-emission sensor was constructed,which was successfully applied for the evaluation of the alcoholic strength in commercial Baijiu commodities in both fluorometric and colorimetric modes.

关键词： carbon dots surface chemistry hydrophilicity and hydrophobicity solvothermal temperature alcoholic strength evaluation

Chinese Freshwater aquaculture:A comparative analysis of the competitiveness on regional aquaculture industries

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Aquaculture and Fisheries 2024年第5期9卷 860-870页

作者： Ziwei Zhu Daqing Wu qijun Jiang College of Economics and Management Shanghai Ocean UniversityShanghai201306China

The aquaculture industry in China is not complete without the freshwater *** scientific assessment of the regional competitiveness of the freshwater aquaculture industry has significant theoretical and practical implications for fostering the industry’s sustainable *** on the diamond model,this study developed a competitiveness evaluation index system for Chinese freshwater aquaculture industry which included six primary indicators and sixteen secondary *** primary indicators included resource endowment,production capacity,science and technology promotion capacity,related and supporting industries,market demand and guiding development *** study analyzed freshwater aquaculture industrial competitiveness during 2.12.2.2. and classified the Chinese 18 major freshwater aquaculture provinces into five competitive *** results showed that the development of related and supporting industries has the greatest contribution to the competitiveness,followed by resource endowment and market demand *** analysis and tier classification showed that the competitiveness of Jiangsu Province and Hubei Province has always been at the forefront,and the province of Guangdong,Fujian,Hunan,Jiangxi,Zhejiang,Anhui,Liaoning,and Guangxi were above the middle ***,the results indicated that the competitiveness of most provinces showed an upward trend.

关键词： Freshwater aquaculture Competitiveness Entropy value method Hierarchical clustering The evaluation index

Shock Raman spectra and structural transformation of powdered TKX-50 by the plate impact experiments combined with real-time Raman detection

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Defence Technology（防务技术） 2024年第1期31卷 158-162页

作者： Xue Yang qijun Liu Yundan Gan Lei Yang Zhengtang Liu Fusheng Liu Bond and Band Engineering Group School of Physical Science and TechnologySouthwest Jiaotong UniversityChengdu 610031People's Republic of China Xi'an Modern Chemistry Research Institute Xi'an 710065People's Republic of China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072People's Republic of China

As an energetic material of great interest,the work capacity of dihydroxylammonium 5,5’-bistetrazole-1,1’-diolate(TKX-50)has been questioned *** some research groups have explored the reasons for the low working ability of TKX-50,the plane impact experiment on powdered TKX-50 is obviously closer to the practical application,and the conclusions based on this are more ***,we performed shock Hugoniot measurements of powdered TKX-50 between 5.65 and 16.2. *** plane impact experiments of powdered TKX-50 were carried out and the shocked Raman spectra were *** Raman spectroscopy analysis,a new peak of powdered TKX-50 was found between19.47 GPa and 2..96 GPa,which may be caused by decomposition/phase transition and was related with the low work capacity.

关键词： Powdered TKX-50 Hugoniot Raman Decomposition Phase transition

Evolution of molecular structure of TATB under shock loading from transient Raman spectroscopic technique

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Defence Technology（防务技术） 2024年第3期33卷 613-620页

作者： Hongliang Kang Xue Yang Wenshuo Yuan Lei Yang Xinghan Li Fusheng Liu Zhengtang Liu qijun Liu Bond and Band Engineering Group School of Physical Science and TechnologySouthwest Jiaotong UniversityChengdu 610031China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072China

By combination of the transient Raman spectroscopic measurement and the density functional theoretical calculations,the structural evolution and stability of TATB under shock compression was *** to the improvement in synchronization control between two-stage light gas gun and the transient Raman spectra acquisition,as well as the sample preparation,the Raman peak of the N-O mode of TATB was firstly observed under shock pressure up to 13.6 GPa,noticeably higher than the upper limit of 8.5 GPa reported in available *** taking into account of the continuous shift of the main peak and other observed Raman peaks,we did not distinguish any structural transition or any new ***,both the present Raman spectra and the time-resolved radiation of TATB during shock loading showed that TATB exhibits higher chemical stability than previous *** reveal the detailed structural response and evolution of TATB under compression,the density functional theoretical calculations were conducted,and it was found that the pressure make N-O bond lengths shorter,nitro bond angles larger,and intermolecular and intra-molecular hydrogen bond interactions *** observed red shift of Raman peak was ascribed to the abnormal enhancement of H-bound effect on the scissor vibration mode of the nitro group.

关键词： TATB Raman spectra Structural evolution Shock loading

Piezotronic neuromorphic devices:principle,manufacture,and applications

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International Journal of Extreme Manufacturing 2024年第3期6卷 363-385页

作者： Xiangde Lin Zhenyu Feng Yao Xiong Wenwen Sun Wanchen Yao Yichen Wei Zhong Lin Wang qijun Sun Department of Research Shanghai University of Medicine and Health Sciences Affiliated Zhoupu HospitalShanghai 201318People’s Republic of China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 101400People’s Republic of China Center on Nanoenergy Research School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004People’s Republic of China Shandong Zhongke Naneng Energy Technology Co. LtdDongying 257061People’s Republic of China Georgia Institute of Technology AtlantaGA 30332-0245United States of America

With the arrival of the era of artificial intelligence(AI)and big data,the explosive growth of data has raised higher demands on computer hardware and *** techniques inspired by biological nervous systems are expected to be one of the approaches to breaking the von Neumann *** neuromorphic devices modulate electrical transport characteristics by piezopotential and directly associate external mechanical motion with electrical output signals in an active manner,with the capability to sense/store/process information of external *** this review,we have presented the piezotronic neuromorphic devices(which are classified into strain-gated piezotronic transistors and piezoelectric nanogenerator-gated field effect transistors based on device structure)and discussed their operating mechanisms and related manufacture ***,we summarized the research progress of piezotronic neuromorphic devices in recent years and provided a detailed discussion on multifunctional applications,including bionic sensing,information storage,logic computing,and electrical/optical artificial ***,in the context of future development,challenges,and perspectives,we have discussed how to modulate novel neuromorphic devices with piezotronic effects more *** is believed that the piezotronic neuromorphic devices have great potential for the next generation of interactive sensation/memory/computation to facilitate the development of the Internet of Things,AI,biomedical engineering,etc.

关键词： piezotronics neuromorphic devices strain-gated transistors piezoelectric nanogenerators synaptic transistors

Novel control strategy for the energy recovery system of a hydraulic excavator

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International Journal of Agricultural and Biological Engineering 2024年第2期17卷 94-101页

作者： Changsheng Liu Qinghua He qijun Tang Kai Ren Jun Gong Daqing Zhang The National Enterprise Research and Development Center Sunward Intelligence Equipment Co.Ltd.Changsha 410131China College of Mechanical and Electrical Engineering Hunan Agricultural UniversityChangsha 410128China College of Eletronical and Information Engineering Hunan UniversityChangsha 410082China

The energy saving of hydraulic excavators is always an essential *** energy recovery system can effectively recover the boom potential energy and rotational kinetic *** on the standard working cycle of hydraulic excavators,a dynamic programming(DP)control strategy for hybrid hydraulic excavators was proposed to recover the boom potential energy and rotational kinetic *** hybrid hydraulic excavator simulation model was built by Simulink *** simulation results indicated that the fuel consumption of hybrid hydraulic excavators using the DP control strategy was about 2..3%lower than that of the conventional hydraulic *** order to experimentally verify the simulation results,an experimental platform for hybrid hydraulic excavators was *** experimental results indicated that the fuel consumption of hybrid hydraulic excavators using the DP control strategy was about 18.9%lower than that of the conventional hydraulic *** paper shows that the DP control strategy applied to hybrid hydraulic excavators can recycle the boom potential energy and rotational kinetic energy,and reduce the fuel consumption of hybrid hydraulic excavators.

关键词： hybrid excavator energy recovery control strategy simulation analysis test platform

Utilizing resequencing big data to facilitate Brassica vegetable breeding:tracing introgression pedigree and developing highly specific markers for clubroot resistance

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Horticultural Plant Journal 2024年第3期10卷 771-783页

作者： Zhiyong Ren Jinquan Li Xingyu Zhang Xingxu Li Junhong Zhang Zhibiao Ye Yuyang Zhang qijun Nie Key Laboratory of Vegetable Ecological Cultivation on Highland Ministry of Agriculture and Rural AffairsHubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic ImprovementInstitute of Economic CropsHubei Academy of Agricultural SciencesWuhanHubei 430063China National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops Huazhong Agricultural UniversityWuhanHubei 430070China Vegetable Research Institute Wuhan Academy of Agricultural SciencesWuhanHubei 430345China Hubei Hongshan Laboratory WuhanHubei 430070China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityWuhanHubei 430070China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenGuangdong 518000China

Clubroot caused by Plasmodiophora brassicae is a devastating disease of Cruciferous *** cultivars with clubroot resistance(CR)is the most effective control *** the two major Brassica vegetable species *** and ***,several commercial cultivars with unclear CR pedigrees have been intensively used as CR donors in ***,the continuous occurrence of CR-breaking makes the CR pedigree underlying these cultivars one of the breeders'most urgent *** complex intraspecific diversity of these two major Brassica vegetables has also limited the applicability of CR markers in different breeding *** we first traced the pedigree underlying two kinds of CR that have been widely applied in breeding by linkage and introgression analyses based on public resequencing *** ***,a major locus CRzi8 underlying the CR of the commercial CR donor‘DegaoCR117’was ***8 was further shown to have been introgressed from turnip(*** ***)and that it carried a potential functional allele of *** turnip introgression carried CRb^(c),sharing the same coding sequence with the CRb that was also identified from chromosome C07 of *** CR cultivars with different *** natural populations,variation analysis of linkage intervals of CRzi8,PbBa8.1,CRb,and CRb^(c)yielded easily resolved InDel markers(>2. bp)for these fundamental CR *** specificity of these markers was tested in diverse cultivars panels,and each exhibited high reliability in *** research demonstrates the value of the practice of applying resequencing big data to solve urgent concerns in breeding programs.

关键词： Brassica Clubroot resistance Resequencing Introgression analysis Molecular marker