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| 1 | Zephyranthes-like Co2NiSe4 arrays grown on 3D porous carbon frame-work as electrodes for advanced supercapacitors and sodium-ion batteries显示文摘Developing suitable electrode materials for electrochemical energy storage devices by biomorph assisted design has become a fascinating topic due to the fantastic properties derived from bio-architectures.Herein,zephyranthes-like Co_(2)NiSe_(4)arrays grown on butterfly wings derived three-dimensional(3D)carbon framework(Z-Co_(2)NiSe_(4)/BWC)is fabricated via hydrothermal assembly and further conversion method.Benefiting from its unique structure and multi-components,the obtained Z-Co_(2)NiSe_(4)/BWC electrode for supercapacitor delivers an excellent specific capacitance of 2,280 F·g^(-1)at 1 A·g^(-1).Impressively,the constructed asymmetric supercapacitor using Co_(2)NiSe_(4)/BWC as positive electrode and activated butterfly wings carbon as negative electrode acquires a high energy density of 42.9 Wh·kg^(-1)at a power density of 800 W·kg^(-1)with robust stability of 94.6%capacitance retention at 10 A·g^(-1)after 5,000 cycles.Moreover,the Z-Co_(2)NiSe_(4)/BWC as anode for sodium-ion batteries exhibits a high specific capacity of 568 mAh·g^(-1)at 0.1 A·g^(-1)and high cycling stability(maintaining 80.1%of the second cycle after 100 cycles).The outstanding electrochemical performances are ascribed to that the synergistic effect of bimetallic selenides and N-doped carbon improves electrochemical activities and conductivity.One-dimensional(1D)nanoneedles grown on 3D porous framework increase the exposure of redox-active sites,endow adequate transmission channels of electrons/ions,and guarantee stability of the electrode during charge/discharge processes.This study will shed light on the avenue towards extending such nanohybrids to excellent energy storage applications. | Yanchun Xue Xingmei Guo Mengrong Wu Jiale Chen Mengting Duan Jing Shi Junhao Zhang Fu Cao Yuanjun Liu Qinghong Kong | 2021 | Nano Research2021,14,10: | 3 |
| 2 | Transcriptome sequencing analysis for the identification of stable lncRNAs associated with bovine Staphylococcus aureus mastitis显示文摘Background:Staphylococcus aureus(S.aureus)mastitis is one of the most difficult diseases to treat in lactating dairy cows worldwide.S.aureus with different lineages leads to different host immune responses.Long non-coding RNAs(lncRNAs)are reported to be widely involved in the progress of inflammation.However,no research has identified stable lncRNAs among different S.aureus strain infections.In addition,folic acid(FA)can effectively reduce inflammation,and whether the inflammatory response caused by S.aureus can be reduced by FA remains to be explored.Methods:lncRNA transcripts were identified from Holstein mammary gland tissues infected with different concentrations of S.aureus(in vivo)and mammary alveolar cells(Mac-T cells,in vitro)challenged with different S.aureus strains.Differentially expressed(DE)lncRNAs were evaluated,and stable DE lncRNAs were identified in vivo and in vitro.On the basis of the gene sequence conservation and function conservation across species,key lncRNAs with the function of potentially immune regulation were retained for further analysis.The function of FA on inflammation induced by S.aureus challenge was also investigated.Then,the association analysis between these keys lncRNA transcripts and hematological parameters(HPs)was carried out.Lastly,the knockdown and overexpression of the important lncRNA were performed to validate the gene function on the regulation of cell immune response.Results:Linear regression analysis showed a significant correlation between the expression levels of lncRNA shared by mammary tissue and Mac-T cells(P<0.001,R^(2)=0.3517).lncRNAs PRANCR and TNK2-AS1 could be regarded as stable markers associated with bovine S.aureus mastitis.Several HPs could be influenced by SNPs around lncRNAs PRANCR and TNK2-AS1.The results of gene function validation showed PRANCR regulates the mRNA expression of SELPLG and ITGB2 within the S.aureus infection pathway and the Mac-T cells apoptosis.In addition,FA regulated the expression change of DE lncRNA involved in toxin metabolism and inflammation to fight against S.aureus infection.Conclusions:The remarkable association between SNPs around these two lncRNAs and partial HP indicates the potentially important role of PRANCR and TNK2-AS1 in immune regulation.Stable DE lncRNAs PRANCR and TNK2-AS1 can be regarded as potential targets for the prevention of bovine S.aureus mastitis.FA supplementation can reduce the negative effect of S.aureus challenge by regulating the expression of lncRNAs. | Siyuan Mi Yongjie Tang Gerile Dari Yuanjun Shi Jinning Zhang Hailiang Zhang Xueqin Liu Yibing Liu Usman Tahir Ying Yu | 2022 | Journal of Animal Science and Biotechnology2022,13,2: | 2 |
| 3 | A channel-confined strategy for synthesizing CoN-CoO_(x)/C as efficient oxygen reduction electrocatalyst for advanced zinc-air batteries显示文摘Designing hybrid transition metal compounds with optimized electronic structure and firmly dispersing them on a matrix to avoid aggregation and shedding is of great significance for achieving high electrocatalytic performances.Herein,an adsorption-complexation-calcination strategy based on channel confining effect is explored to obtain CoN-CoO_(x)hybrid nanoparticles uniformly dispersed in mesoporous carbon.The CoN-CoO_(x)/C composite exhibits excellent electrocatalytic behavior for oxygen reduction reaction(ORR).The half-wave potential and durability are comparable or superior to those of Pt/C.When applying as cathode catalyst for a primary zinc-air battery,the open-circuit voltage and peak power density reach up to 1.394 V and 109.8 mW·cm^(−2),respectively.A high gravimetric energy density of 950.3 Wh·kgZn^(−1) is delivered at 10 mA·cm^(−2) with good rate capability and stability.Density functional theory(DFT)calculation demonstrates the favorable ORR intermediate adsorbability and metallic characteristics of CoN grains with oxide hybridization to optimize the electronic structure.This work provides a facile adjustable approach for obtaining highly dispersed nanoparticles with controllable hybrid composition on a substrate,which is important for future design and optimization of high-performance electrocatalysts. | Xingmei Guo Wei Zhang Jing Shi Mengting Duan Shanjing Liu Junhao Zhang Yuanjun Liu Shenglin Xiong Qinghong Kong | 2022 | Nano Research2022,15,3: | 1 |
| 4 | AMP-activated protein kinaseβ1 orβ2 deletion enhances colon cancer cell growth and tumorigenesis显示文摘Abnormal metabolism is a major hallmark of cancer and has been validated as a therapeutic target.Adenine monophosphate-activated protein kinase(AMPK),anαβγheterotrimer,performs essential functions in cancer progression due to its central role in maintaining the homeostasis of cellular energy.While the contributions of AMPKαand AMPKγsubunits to cancer development have been established,specific roles of AMPKβ1 and AMPKβ2 isoforms in cancer development are poorly understood.Here,we show the functions of AMPKβ1 and AMPKβ2 in colon cancer.Specifically,deletion of AMPKβ1 or AMPKβ2 leads to increased cell proliferation,colony formation,migration,and tumorigenesis in HCT116 and HT29 colon cancer cells.Interestingly,the AMPKβ1 and AMPKβ2 isoforms have slightly different effects on regulating cancer metabolism,as colon cancer cells with AMPKβ1 knockout showed decreased rates of glycolysis-related oxygen consumption,while AMPKβ2 deletion led to enhanced rates of oxygen consumption due to oxidative phosphorylation.These results demonstrate that functional AMPKβ1 and AMPKβ2 inhibit growth and tumorigenesis in colon cancer cells,suggesting their potential as effective targets for colon cancer therapy. | Fuli Shi Zhimin Tang Shanshan Jiang Zhijuan Xiong Wansi Zhang Yuanjun Li Hui Lin Zhijun Luo Ying Ying | 2022 | Acta Biochimica et Biophysica Sinica2022,54,8: | 0 |
| 5 | Influence of the Blade Bifurcated Tip on the Correlation between Wind Turbine Wheel Vibration and Aerodynamic Noise显示文摘To reduce the vibration and aerodynamic noise of wind turbines,a new design is proposed relying on a blade with a bifurcated apex or tip.The performances of this wind turbine wheel are tested at the entrance of a DC(direct-action)wind tunnel for different blade tip angles and varying centrifugal force and aerodynamic loads.The test results indicate that the bifurcated apex can reduce the vibration acceleration amplitude and the vibration fre-quency of the wind wheel.At the same time,the bifurcated apex can lower the maximum sound pressure level corresponding to the rotating fundamental frequency of the wind wheel.According to all thesefindings,the tip angle of the bifurcated apex is the main factor enhancing the effect of the modification. | Baohua Li Yuanjun Dai Jingan Cui Cong Wang Kunju Shi | 2023 | Fluid Dynamics & Materials Processing2023,19,12: | 0 |
| 6 | Influence of Flap Parameters on the Aerodynamic Performance of a Wind-Turbine Airfoil显示文摘A numerical method has been used to analyze the flow field related to a NACA 0015 airfoil with and without a flap and assess the influence of the flap height and angle on the surface pressure coefficient,lift coefficient,and drag coefficient.The numerical results demonstrate that the flap can effectively improve the lift coefficient of the airfoil;however,at small attack angles,its influence is significantly reduced.When the angle of attack exceeds the critical stall angle and the flap height is 1.5%of the chord length,the influence of the flap becomes very evident.As the flap height increases,the starting point of the separation vortex gradually moves forward and generates a larger wake vortex.Optimal aerodynamic characteristics are obtained for 1.5%(of the chord length)flap height and a 45°flap angle;in this case,the separation vortex is effectively reduced. | Yuanjun Dai Jingan Cui Baohua Li Cong Wang Kunju Shi | 2024 | Fluid Dynamics & Materials Processing2024,20,4: | 0 |
| 7 | Network traffic identification in packet sampling environment显示文摘With the rapid growth of network bandwidth,traffic identification is currently an important challenge for network management and security.In recent years,packet sampling has been widely used in most network management systems.In this paper,in order to improve the accuracy of network traffic identification,sampled NetFlow data is applied to traffic identification,and the impact of packet sampling on the accuracy of the identification method is studied.This study includes feature selection,a metric correlation analysis for the application behavior,and a traffic identification algorithm.Theoretical analysis and experimental results show that the significance of behavior characteristics becomes lower in the packet sampling environment.Meanwhile,in this paper,the correlation analysis results in different trends according to different features.However,as long as the flow number meets the statistical requirement,the feature selection and the correlation degree will be independent of the sampling ratio.While in a high sampling ratio,where the effective information would be less,the identification accuracy is much lower than the unsampled packets.Finally,in order to improve the accuracy of the identification,we propose a Deep Belief Networks Application Identification(DBNAI)method,which can achieve better classification performance than other state-of-the-art methods. | Shi Dong Yuanjun Xia | 2023 | Digital Communications and Networks2023,9,4: | 0 |
| 8 | Influence of Trailing-Edge Wear on the Vibrational Behavior of Wind Turbine Blades显示文摘To study the impact of the trailing-edge wear on the vibrational behavior of wind-turbine blades,unworn blades and trailing-edge worn blades have been assessed through relevant modal tests.According to these experiments,the natural frequencies of trailing-edge worn blades-1,-2,and-3 increase the most in the second to fourth order,thefifth order increases in the middle,and thefirst order increases the least.The damping ratio data indi-cate that,in general,thefirstfive-order damping ratios of trailing-edge worn blades-1 and trailing-edge worn blades-2 are reduced,and thefirstfive-order damping ratios of trailing-edge worn blades-3 are slightly improved.The mode shape diagram shows that the trailing-edge worn blades-1 and-2 have a large swing in the tip and the blade,whereas the second-and third-order vibration shapes of the trailing edge-worn blade-3 tend to be improved.Overall,all these results reveal that the blade’s mass and the wear area are the main fac-tors affecting the vibration characteristics of wind turbine blades. | Yuanjun Dai Xin Wei Baohua Li Cong Wang Kunju Shi | 2024 | Fluid Dynamics & Materials Processing2024,20,2: | 0 |
| 9 | Impact of Financial Technology on Regional Green Finance显示文摘Finance is the core of modern economy,and a strong country cannot do without the support of financial system.With the rapid development of economy and society,the traditional financial services can not support the increasingly large and complex economic system.As a brand-new format,financial technology can help the financial industry to restructure and upgrade.At the same time,as an international consensus,green development is the only way for China to achieve sustainable development.Therefore,it is of great practical significance to study the impact of finance on the regional development of green finance.Based on the essence of green finance development,fuzzy principal component analysis is used to build the green finance evaluation index system in this paper.Taking the data of three provinces and cities in the Yangtze River Delta from 2015 to 2019 as an example,QAP analysis is used to study the impact of financial tech-nology on the regional development of green finance.Research shows that expla-natory variables are highly significant,that is,financial technology has a significant role in promoting green finance.Finally,based on the research conclu-sions,this paper puts forward suggestions on how green technology can better promote the development of green finance from three aspects of top-level design,technical research and supervision. | Zheng Liu Juanjuan Song Hui Wu Xiaomin Gu Yuanjun Zhao Xiaoguang Yue Lihua Shi | 2021 | Computer Systems Science & Engineering2021,39,12: | 0 |
| 10 | Ferritin-based nanomedicine for disease treatment显示文摘Ferritin is an endogenous protein which is selfassembled by 24 subunits into a highly uniform nanocage structure.Due to the drug-encapsulating ability in the hollow inner cavity and abundant modification sites on the outer surface,ferritin nanocage has been demonstrated great potential to become a multi-functional nanomedicine platform.Its good biocompatibility,low toxicity and immunogenicity,intrinsic tumor-targeting ability,high stability,low cost and massive production,together make ferritin nanocage stand out from other nanocarriers.In this review,we summarized ferritin-based nanomedicine in field of disease diagnosis,treatment and prevention.The different types of drugs to be loaded in ferritin,as well as drug-loading methods were classified.The strategies for site-specific and non-specific functional modification of ferritin were investigated,then the application of ferritin for disease imaging,drug delivery and vaccine development were discussed.Finally,the challenges restricting the clinical translation of ferritin-based nanomedicines were analyzed. | Yuanjun Zhu Yuefeng Zhu Tianmiao Cao Xiaoyu Liu Xiaoyan Liu Yi Yan Yujie Shi Jian-Cheng Wang | 2023 | Medical Review2023,3,1: | 0 |