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Plasmon-enhanced ultra-high photoresponse of single-wall carbon nanotube/copper/silicon near-infrared photodetectors

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nano Research 2024年第7期17卷 5930-5936页

作者： Yi-ming Zhao Xian-Gang Hu chao ch.n Zuo-Hua wang An-Ping Wu Hong-wang Zhang Peng-Xiang Hou ch.ng Liu Hui-ming ch.ng Shenyang national Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China national Engineering Research Center for Equipment and Technology of Cold Strip Rolling College of Mechanical EngineeringYanshan UniversityQinhuangdao 066004China Faculty of Materials Science and Engineering/Institute of Technology for Carbon neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Single wall carbon nanotube(SWCnT)/Si heterojunction photodetectors have the advantages of high photoresponse ability and simple structure,however,their detection wavelength range are usually lower than 1100 nm,which limits their application in the infrared *** report a SWCnT/Cu/Si photodetector with both a high photoresponse and a detection range up to the infrared band by depositing a Cu nanoparticles(nPs)layer between a SWCnT film and a n-Si *** was found that the Cu nPs produce strong surface plasmon resonance(SPR)under laser irradiation,which breaks through the limitation of Si band gap and greatly improves the photoresponse of the SWCnT/Cu/Si photodetector in the near infrared *** responsivity(R)of the photodetector in the wavelength range of 1850–1200 nm reached 2.2–14.15 mA/W,which is the highest value in the reported plasmon enhanced n-Si based photodetectors,and about 20,000 times higher than that of a SWCnT/Si *** R value for 1550 nm wavelength used in optical communications reached~8.2 mA/W,which is 64%higher than the previously reported values of commonly used *** attribute the significant increase to the strong SPR and low Schottky barrier of Cu with n-Si,which facilitates the generation and transfer of the carriers.

关键词： single wall carbon nanotube photodetector silicon surface plasmon resonance copper

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2D–3D dual carbon layer confined ultrasmall Vn nanoparticles for improving lithium-ion storage in hybrid capacitors

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Rare Metals 2024年第1期43卷 65-75页

作者： Zhao-Wei Hu Hui-Fang Li Peng wang Wan-Li wang Lei Yang Xiao-Jun wang Zhi-ming Liu College of Electromech.nical Engineering Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon-MaterialsQingdao University of Science&TechnologyQingdao 266061China Research Center for Intelligent and Wearable Technology College of Textiles and ClothingQingdao UniversityQingdao 266071China

Lithium-ion capacitors(LICs) of achieving high power and energy density have garnered significant attention. However, the kinetics unbalance between anode and cathode can impede the application of LICs. Vanadium nitride(Vn) with a high theoretical specific capacity(~ 1200 m Ah·g^(-1)) is a better pseudocapacitive anode to match the response of cathode in LICs. However, the insertion/extraction of Li-ions in Vn's operation results in significant volume expansion. Herein, the Vn/n-r GO-5composite that three-dimentional(3D) dicyandiamidederived-carbon(DDC) tightly wrapped Vn quantum dots(Vn QDTs) on two-dimentional(2D) reduced graphene oxid(r GO) was prepared by a facile strategy. The Vn QDTs can reduce ion diffusion length and improve charge transfer kinetics. The 2D r GO as a template provides support for nanoparticle dispersion and improves electrical conductivity. The 3D DDC tightly encapsulated with Vn QDTs mitigates agglomeration of Vn particles as well as volume expansion. Correspondingly, the LICs with Vn/nr GO-5 composite as anode and activated carbon(AC) as cathode were fabricated, which exhibits a high energy density and power density. Such strategy provides a perspective for improving the electrochemical properties of LIC anode materials by suppressing volume expansion and enhancing conductivity.

关键词： Vanadium nitride(Vn)quantum dots Reduced graphene oxide(rGO)nanosheets Dicyandiamide-derived-carbon 2D–3D dual carbon layer Lithium-ion capacitors

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Could natural phytochemicals be used to reduce nitrogen excretion and excreta‑derived n_(2)O emissions from ruminants?

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Journal of Animal Science and Biotechnology 2024年第2期15卷 490-508页

作者： Yuchao Zhao ming Liu Linshu Jiang Leluo Guan Beijing Key Laboratory of Dairy Cow nutrition College of Animal Science and TechnologyBeijing University of AgricultureBeijing 102206China College of Animal Science and Technology China Agricultural UniversityBeijing 100193China Department of Agricultural Food and Nutritional ScienceUniversity of AlbertaEdmontonAB T6G 2R3Canada

Ruminants play a critical role in our food system by converting plant biomass that humans cannot or choose not to consume into edible high-quality ***,ruminant excreta is a significant source of nitrous oxide(n_(2)O),a potent greenhouse gas with a long-term global warming potential 298 times that of carbon *** phytochemicals or forages containing phytochemicals have shown the potential to improve the efficiency of nitrogen(n)utilization and decrease n_(2)O emissions from the excreta of *** inclusion of tannins can shift more of the excreted n to the feces,alter the urinary n composition and consequently reduce n_(2)O emissions from *** oils or saponins could inhibit rumen ammonia production and decrease urinary n *** grazed pastures,large amounts of glucosinolates or aucubin can be introduced into pasture soils when animals consume plants rich in these compounds and then excrete them or their metabolites in the urine or *** inhibitory compounds are excreted in the urine,they would be directly applied to the urine patch to reduce nitrification and subsequent n_(2)O *** phytochemicals’role in sustainable ruminant production is undeniable,but much uncertainty ***,transient effects,and adverse effects limit the effectiveness of these phytochemicals for reducing n *** this review,we will identify some current phytochemicals found in feed that have the potential to manipulate ruminant n excretion or mitigate n_(2)O production and deliberate the challenges and opportunities associated with using phytochemicals or forages rich in phytochemicals as dietary strategies for reducing n excretion and excreta-derived n_(2)O emissions.

关键词： nitrogen metabolism nitrous oxide Plant bioactive compounds Ruminant Urine patches

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Times of a Branch.ng Process with Immigration in Varying Environments Attaining a Fixed Level

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Acta Mathematica Sinica,English Series 2024年

作者： Hua-ming wang School of Mathematics and Statistics Anhui Normal University

Consider a branch.ng process{Z_n}n≥0with immigration in varying *** a∈{0,1,2,...},let C（a）={n≥0:Z_n=a}be the collection of times at which the population size of the process attains level *** give a criterion to determine whether the set C（a） is finite or *** the critical Galton-Watson process,based on a moment method,we show that|C（a）∩[1,n]|/log n→Sin distribution,where S is an exponentially distributed random variable with P （S>t）=e-t,t>0.

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Macro-superlubricity in sputtered MoS_(2)-based films by decreasing edge pinning effect

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Friction 2024年第1期12卷 52-63页

作者： ch.nmeng DOnG Dong JIAnG Yanlong FU Desheng wang Qinqin wang Lijun WEnG ming HU Xiaoming GAO Jiayi SUn State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

To date,MoS_(2) can only be achieved at *** pinning effect caused by structure defects is the most obvious barrier to expand the size of structural superlubricity to ***,we plan to pin edge planes of MoS_(2) with nanospheres,and then the incommensurate structure can be formed between adjacent rolling nanoparticles to reduce *** sputtered MoS_(2) film was prepared by the physical vapor deposition(PVD)in *** enough Cu_(2)O nanospheres(~40 nm)were generated in situ at the edge plane of MoS_(2) layers by liquid phase *** incommensurate structure(mismatch angle(θ)=8°)caused by MoS_(2) layers was formed before *** friction coefficient of the films(5 n,1,000 r/min)was~6.0×10^(−3) at the *** friction,MoS_(2) layers pinned on numerous of Cu_(2)O nanoparticles reduced its edge pinning effect and decreased ***,much more incommensurate was formed,developing macro-superlubricity.

关键词： sputtered MoS_(2)film Cu_(2)O nanospheres edge pinning effect macro-superlubricity

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Centrifuge modeling of unreinforced and multi-row stabilizing piles reinforced landslides subjected to reservoir water level fluctuation

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Journal of Rock Mech.nics and Geotechnical Engineering 2024年第5期16卷 1600-1614页

作者： ch.nyang Zhang Yueping Yin Hui Yan Sainan Zhu ming Zhang Luqi wang Department of Civil Engineering The University of Hong KongHong KongChina ch.na Institute of Geo-environment Monitoring BeijingChina ch.ngqing 107 Municipal Construction Engineering Co. Ltd.ChongqingChina Faculty of Engineering China University of GeosciencesWuhanChina School of Civil Engineering Chongqing UniversityChongqingChina

With the construction of the Three Gorges Reservoir dam,frequent reservoir landslide events have been *** recent years,multi-row stabilizing piles(MRSPs)have been used to stabilize massive reservoir landslides in *** this study,two centrifuge model tests were carried out to study the unreinforced and MRSP-reinforced slopes subjected to reservoir water level(RWL)operation,using the Taping landslide as a *** results indicate that the RWL rising can provide lateral support within the submerged zone and then produce the inward seepage force,eventually strengthening the slope ***,a rapid RWL drawdown may induce outward seepage forces and a sudden debuttressing effect,consequently reducing the effective soil normal stress and triggering partial pre-failure within the RWL fluctuation ***,partial deformation and subsequent soil structure damage generate excess pore water pressures,ultimately leading to the overall failure of the reservoir *** study also reveals that a rapid increase in the downslope driving force due to RWL drawdown significantly intensifies the lateral earth pressures exerted on the ***,the MRSPs possess a considerable reinforcement effect on the reservoir landslide,transforming the overall failure into a partial deformation and failure situated above and in front of the *** mech.nical transfer behavior observed in the MRSPs demonstrates a progressive alteration in relation to RWL *** the RWL rises,the mech.nical states among MRSPs exhibit a growing *** shear force transfer factor(*** ratio of shear forces on pile of the n th row to that of the first row)increases significantly with the RWL *** indicates that the mech.nical states among MRSPs tend toward an enhanced *** insights gained from this study contribute to a more comprehensive understanding of the failure mech.nisms of reservoir landslides and the mech.nical behavior of M

关键词： Reservoir landslide Failure mech.nism Multi-row stabilizing piles Mech.nical behavior

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LncRnA MEG3 Inhibits the Epithelial-mesenchymal Transition of Bladder Cancer Cells through the Snail/E-cadherin Axis

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当代医学科学（英文） 2024年第4期44卷 726-734页

作者： Liang wang Ping wang Bing LIU Hui ZHAnG ch.ng-ch.ng WEI ming XIOnG Gang LUO Miao wang Department of Urology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Clinical Laboratory Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Urology The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014China

Objective:This study aimed to investigate the role of the long noncoding RnA(lncRnA)maternally expressed gene 3(MEG3)in the epithelial-mesenchymal transition(EMT)of bladder cancer cells and the potential ***:Cell invasion,migration,and wound healing assays were conducted to assess the effects of MEG3 on the invasive and migratory capabilities of bladder cancer *** expression levels of E-cadherin were measured using Western blotting,RT-qPCR,and dual luciferase reporter *** immunoprecipitation and pull-down assays were performed to investigate the interactions between MEG3 and its downstream ***:MEG3 suppressed the invasion and migration of bladder cancer cells and modulated the transcription of *** binding of MEG3 to the zinc finger region of the transcription factor Snail prevented its ability to transcriptionally repress ***,MEG3 suppressed the phosphorylation of extracellular regulated protein kinase(ERK),c-Jun n-terminal kinase(JnK),and P38,thereby decreasing the expression of Snail and stimulating the expression of ***:MEG3 plays a vital role in suppressing the EMT in bladder cancer cells,indicating its potential as a promising therapeutic target for the treatment of bladder cancer.

关键词： Snail bladder cancer epithelial-mesenchymal transition long noncoding RnA maternally expressed gene 3

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Serum procalcitonin levels are associated with rhabdomyolysis following exertional heatstroke: an over 10-year intensive care survey

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World Journal of Emergency Medicine 2024年第1期15卷 23-27页

作者： Li Zhong Feifei Shuai Conglin wang Lipeng Han Zhifeng Liu ming Wu Department of Traditional ch.nese Medicine the First Affi liated HospitalGuizhou University of Chinese MedicineGuiyang 550001China Department of Medical Critical Care Medicine General Hospital of Southern Theatre Command of People’s Liberation ArmyGuangzhou 510010China Department of Infection and Critical Care Medicine Shenzhen Second People’s Hospital&First Affi liated Hospital of Shenzhen UniversityHealth Science CenterShenzhen 518035China Department of nosocomial Infection Prevention and Control Shenzhen Second People’s HospitalShenzhen 518035China Key Laboratory of Hot Zone Trauma Care and Tissue Repair of People's Liberation Army General Hospital of Southern Theatre Command of People's Liberation ArmyGuangzhou 510010China

BACKGROUnD:Heatstroke has become a common emergency event in ***(PCT)is used as a biomarker of infection in the emergency department(ED),but its role in rhabdomyolysis(RM)following exertional heatstroke(EHS)remains ***:A retrospective cohort study enrolled patients with EHS from the intensive care unit(ICU).We collected RM biomarkers,inflammation markers,critical disease scores at admission,24 h,48 h,and discharge,and 90-day *** analysis,linear regression and curve fi tting were used to identify the relationship between PCT and ***:A total of 162 patients were recruited and divided into RM(n=56)and non-RM(n=106)*** was positively correlated with myoglobin(Mb),acute hepatic injury,disseminated intravascular coagulation(DIC),Sequential Organ Failure Assessment(SOFA)score,and Acute Physiology and chronic Health Evaluation II(APAchE II)score,with correlation coefficients of 0.214,0.237,0.285,0.454,and 0.368,respectively(all Pnterestingly,the results of curve fi tting revealed a nonlinear relationship between PCT and RM,and a two-piecewise linear regression model showed that PCT was related to RM with an odds ratio of 1.3 and a cut-off ofng/*** analysis revealed that RM was associated with higher mortality compared to non-RM cases(P=0.0093).COnCLUSIOn:High serum PCT concentrations are associated with RM after EHS in critically ill *** PCT concentrations should be interpreted cautiously in patients with EHS in the ED.

关键词： Procalcitonin Myoglobin Rhabdomyolysis Exertional heatstroke

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Electronic structure regulation and built-in electric field synergistically strengthen photocatalytic nitrogen fixation performance on Ti-BiOBr/TiO_(2)heterostructure

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Rare Metals 2024年第3期43卷 1125-1138页

作者： Ru-Qi Li Yu-Jie Bian ch.n-ming Yang Li Guo Tao-Xia Ma chuan-Tao wang Feng Fu Dan-Jun wang College of chemistry and chemical Engineering Yan’an UniversityYan’an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank CoalYan’an716000China

At present,industrial synthetic ammonia was still obtained through the Hubble-Bosch process,with large energy *** is a research hotspot to realize green synthetic ammonia by using solar *** difficulty of photocatalytic ammonia synthesis was that the photo-excited electrons have not enough energy to active n≡*** this study,Ti was doped into BiOBr by one-step hydrothermal method,which was oxidized into TiO_(2)when the doping amount reaches the maximum,in situ forming Ti_(0.31)B_(0.69)OB/TiO_(2)*** from the synergistic effect of Ti doping and S-scheme heterojunction,the synthetic ammonia efficiency of Ti_(0.31)B_(0.69)OB/TiO_(2)-11.96 reached 1.643 mmol·g_(cat)^(-1)at mild conditions and without hole scavenger for up to 7 h,the efficiency of synthetic ammonia is 115 times,10.5 times and 3.3 times of that of BiOBr,Ti_(0.31)B_(0.69)OB and TiO_(2),***,DFT calculation confirms that Ti doping accurately refine the electronic structure of BiOBr,facilitate nitrogen adsorption activation and reduce hydrogenation reaction energy barrier,thus accelerating the reaction kinetics of photocatalytic nitrogen reduction(nRR),Meanwhile,constructing S-scheme heterojunction boosts the separation and transfer of photogenerated electron-hole pairs,improving the reduction ability of electrons in the conduction band of TiO_(2)and the oxidation ability of holes in the valence band of Ti_(0.31)B_(0.69)OB.

关键词： S-scheme heterostructure Electronic structure regulation Built-in electric field Synergistical stren4gthening Photocatalytic nitrogen fixation

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Leflunomide: A versatile additive for defect reduction, enhanced optoelectronic properties and environmental stability of perovskite films

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nano Research 2024年第4期17卷 2628-2637页

作者： Dingyue Sun ming Peng Taijin wang Longju Yi Shizuo Zhang Feng Liu Gary J.ch.ng The Institute of Technological Sciences Wuhan UniversityWuhan 430072China School of Power and Mech.nical Engineering Wuhan UniversityWuhan 430072China School of Industrial Engineering Purdue UniversityWest LafayetteIN 47906USA

The development of perovskite photoelectric devices with excellent performance is largely dependent on the defects in the perovskite *** address this issue,a specific drug,leflunomide(LF,C_(12)H_(9)F_(3)n_(2)O_(2)),was incorporated into the perovskite to reduce defects and improve its photoelectric *** is believed that the C=O bond on LF molecule can interact with the uncoordinated Pb2+of the perovskite,thereby reducing non-radiative *** novel approach of incorporating LF into perovskite films has the potential to revolutionize the development of high-performance perovskite photoelectric *** trifluoromethyl functional(–CF_(3))group on LF can form a protective layer on the surface of the perovskite film,shielding it from water ***,LF can be utilized to alter the nucleation position of perovskite,thus minimizing the number of defects and optimizing the film ***,the LF-doped perovskite film displays low trap density and high photoelectric *** LF-doped perovskite film showed a trap density of 8.28×10^(11),which is notably lower than the 2.04×10^(12) of the perovskite film without *** responsivity and detectivity of the LF-doped perovskite photodetector were 0.771 A/W and 2.81×10^(11) Jones,respectively,which are much higher than the 0.23 A/W and 1.06×10^(10) Jones of the LF-undoped perovskite ***,the LF-doped photodetector maintained an initial photocurrent of 86%after 30 days of storage in air,indicating drastically increased environmental *** strongly suggests that LF is an effective additive for perovskites utilized in optoelectronic devices with high performance.

关键词： leflunomide additive engineering defect passivation perovskite

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