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| 1 | Interplay between Kitaev interaction and single ion anisotropy in ferromagnetic CrI_(3) and CrGeTe_(3) monolayers显示文摘Magnetic anisotropy is crucially important for the stabilization of two-dimensional(2D)magnetism,which is rare in nature but highly desirable in spintronics and for advancing fundamental knowledge.Recent works on CrI3 and CrGeTe_(3) monolayers not only led to observations of the long-time-sought 2D ferromagnetism,but also revealed distinct magnetic anisotropy in the two systems,namely Ising behavior for CrI3 versus Heisenberg behavior for CrGeTe_(3).Such magnetic difference strongly contrasts with structural and electronic similarities of these two materials,and understanding it at a microscopic scale should be of large benefits.Here,firstprinciples calculations are performed and analyzed to develop a simple Hamiltonian,to investigate magnetic anisotropy of CrI3 and CrGeTe_(3) monolayers.The anisotropic exchange coupling in both systems is surprisingly determined to be of Kitaev-type.Moreover,the interplay between this Kitaev interaction and single ion anisotropy(SIA)is found to naturally explain the different magnetic behaviors of CrI3 and CrGeTe_(3).Finally,both the Kitaev interaction and SIA are further found to be induced by spin–orbit coupling of the heavy ligands(I of CrI3 or Te of CrGeTe_(3))rather than the commonly believed 3d magnetic Cr ions. | Changsong Xu Junsheng Feng Hongjun Xiang Laurent Bellaiche | 2018 | npj Computational Materials2018,,1: | 10 |
| 2 | MiRNA-206 inhibits hepatocellular carcinoma cell proliferation and migration but promotes apoptosis by modulating cMET expression显示文摘A close relationship between cancer progression and microRNAs(miRNAs)regulation has been demonstrated.Abnormal microRNA-206(miR-206)expression has been shown to be related to the development of malignancies.However,the role of miR-206 in hepatocellular carcinoma(HCC)remains unclear.Here,we evaluated the function of miR-206 in HCC.Results showed that miR-206 expression was decreased in 27 human HCC tissues compared with that of adjacent normal tissues.Conversely,cMET was up-regulated in human HCC cancer tissues,and cMET levels were shown to be negatively correlated with miR-206 expression.Abnormally increased miR-206 expression in three HCC cell lines(SMMC-7721,HepG2,and Huh7)attenuated cell viability,migration,and invasion.Increased apoptosis was also observed in these miR-206 expressing cells.Furthermore,we identified that miR-206 targets the 3′-UTR of the cMET gene for silencing,and restoration of cMET expression reversed the inhibitory effect of miR-206 on HCC.Tumor cells expressing miR-206 also showed delayed growth in the in vivo experiments compared with the controls.Altogether,our findings provide new insights into the molecular mechanisms of HCC oncogenesis. | Yuanxi Wang Qinwen Tai Jinhui Zhang Junsheng Kang Feng Gao Feng Zhong Liquan Cai Fa Fang Yi Gao | 2019 | Acta Biochimica et Biophysica Sinica2019,51,3: | 7 |
| 3 | Release and uptake mechanisms of vesicular Ca^2+stores显示文摘Cells utilize calcium ions(Ca^2+)to signal almost all aspects of cellular life,ranging from cell proliferation to cell death,in a spatially and temporally regulated manner.A key aspect of this regulation is the compartmen-talization of Ca^2+in various cytoplasmic organelles that act as intracellular Ca^2+stores.Whereas Ca^2+release from the large-volume Ca^2+stores,such as the endoplasmic reticulum(ER)and Golgi apparatus,are preferred for signal transduction,Ca^2+release from the small-volume individual vesicular stores that are dispersed throughout the cell,such as lysosomes,may be more useful in local regulation,such as membrane fusion and individualized vesicular movements.Conceivably,these two types of Ca^2+stores may be established,maintained or refilled via distinct mechanisms.ER stores are refilled through sustained Ca^2+influx at ER-plasma membrane(PM)membrane contact sites(MCSs).In this review,we discuss the release and refilling mechanisms of intracellular small vesicular Ca^2+stores,with a special focus on lysosomes.Recent imaging studies of Ca2+release and organelle MCSs suggest that Ca^2+exchange may occur between two types of stores,such that the small stores acquire Ca^2+from the large stores via ER-vesicle MCSs.Hence vesicular stores like lysosomes may be viewed as secondary Ca^2+stores in the cell. | Junsheng Yang Zhuangzhuang Zhao Mingxue Gu Xinghua Feng Haoxing Xu | 2019 | Protein & Cell2019,10,1: | 3 |
| 4 | Optimization of Processing Parameters of Power Spinning for Bushing Based on Neural Network and Genetic Algorithms显示文摘A neural network model of key process parameters and forming quality is developed based on training samples which are obtained from the orthogonal experiment and the finite element numerical simulation. Optimization of the process parameters is conducted using the genetic algorithm (GA). The experimental results have shown that a surface model of the neural network can describe the nonlinear implicit relationship between the parameters of the power spinning process:the wall margin and amount of expansion. It has been found that the process of determining spinning technological parameters can be accelerated using the optimization method developed based on the BP neural network and the genetic algorithm used for the process parameters of power spinning formation. It is undoubtedly beneficial towards engineering applications. | Junsheng Zhao Yuantong Gu Zhigang Feng | 2019 | Journal of Beijing Institute of Technology2019,28,3: | 3 |
| 5 | A combined backstepping and small-gain approach to robust adaptive fuzzy control for strict-feedback nonlinear systems 显示文摘 | YANG Yansheng FENG Gang REN Junsheng | 2004 | IEEE Transactions on Systems Man and Cybernetics-Part A: Systems and Humans2004,34,3: | 1 |
| 6 | RAF22,ABI1 and OST1 form a dynamic interactive network that optimizes plant growth and responses to drought stress in Arabidopsis显示文摘Plants adapt to their ever-changing environment via positive and negative signals induced by environmental stimuli.Drought stress,for instance,induces accumulation of the plant hormone abscisic acid(ABA),triggering ABA signal transduction.However,the molecular mechanisms for switching between plant growth promotion and stress response remain poorly understood.Here we report that RAF(rapidly accelerated fibrosarcoma)-LIKE MITOGEN-ACTIVATED PROTEIN KINASE KINASE KINASE 22(RAF22)in Arabidopsis tha/iana physically interacts with ABA INSENSITIVE 1(ABl1)and phosphorylates ABl1 at Ser416 residue to enhance its phosphatase activity.Interestingly,ABl1 can also enhance the activity of RAF22 through dephosphorylation,reciprocally inhibiting ABA signaling and promoting the maintenance of plant growth under normal conditions.Under drought stress,however,the ASA-activated OPEN STOMATA1(OST1)phosphorylates the Ser81 residue of RAF22 and inhibits its kinase activity,restraining its enhancement of ABl1 activity.Taken together,our study reveals that RAF22,ABl1,and OST1 form a dynamic regulatory network that plays crucial roles in optimizing plant growth and environmental adaptation under drought stress. | Zhihui Sun Zhenkai Feng Yanglin Ding Yuanpeng Qi Shan Jiang Zhen Li Yu Wang Junsheng Qi Chunpeng Song Shuhua Yang Zhizhong Gong | 2022 | Molecular Plant2022,15,7: | 1 |
| 7 | Stability of shallow tunnel using rigid bocks and finite-element upper bound solutions显示文摘 | YANG Feng YANG Junsheng | 2010 | International Journal of Geomechanics2010,10,6: | 1 |
| 8 | A revised failure mechanism of strip footings for upper bound solution 显示文摘 | Yang Feng Yang Junsheng | 2008 | Electronic Journal of Geotechnieal Engineering Bundle F2008,,: | 1 |
| 9 | A Combined Backstepping and Small-Gain Approach to Robust Adaptive Fuzzy Control for Strict-Feedback Nonlinear Systems显示文摘 | Yang Yansheng Feng Gang Ren Junsheng | 2004 | IEEE Transactions on Systems Man and Cybernetics-Part A:Systems and Humans2004,34,3: | 1 |
| 10 | Stability of shallow tunnel using rigid blocks and finite element upper bound solutions显示文摘 | YANG Feng YANG Junsheng | 2010 | International Journal of Geomechanics2010,10,6: | 1 |
| 11 | Mechanical properties of unidirectional SiBN fiber reinforced boron nitride matrix composites显示文摘 | Duan Li Changrui Zhang Bin Li Feng Cao Siqing Wang Junsheng Li | 2011 | Materials Letters2011,,: | 1 |
| 12 | Phase-mediated cobalt phosphide with unique core-shell architecture serving as efficient and bifunctional electrocatalyst for hydrogen evolution and oxygen reduction reaction显示文摘Hydrogen evolution reaction(HER)and oxygen reduction reaction(ORR)have been considered as two critical processes in the field of electrocatalytic water-splitting for hydrogen production and fuel cells.However,the sluggish reaction kinetics of HER and ORR required efficient electrocatalyst such as Pt to promote such process.Transition metal phosphides(TMPs)exhibit great potential to replace noble metal electrocatalysts to accelerate HER and ORR due to their high activity and easy availability.Herein,a highly-efficient bifunctional CoP electrocatalyst for HER and ORR,featuring a unique core-shell structure decorated on nitrogen-doped carbon matrix was designed and constructed via etching a cobalt-based zeolitic imidazolate framework(ZIF-67)with phytic acid(PA)followed by pyrolysis treatment(PA-ZIF-67-900).Experimental results revealed that the pure-phase single-crystalline Co P exhibited outstanding electrocatalytic performance in HER and ORR,superior to Co(PO_(3))_(2) in PA-ZIF-67-700,hybrid phase of Co(PO_(3))_(2) and CoP in PA-ZIF-67-800 and Co_(2)P-doped CoP in PA-ZIF-67-1000.To reach the current density of 10 mA/cm^(2)the as-synthesized Co P required an overpotential of 120 m V for HER in 1 mol/L KOH and half-wave potential of 0.85 V in O_(2)-saturated 0.1 mol/L KOH.This work present new clue for construction of efficient and bifunctional electrocatalyst in the field of energy conversion and storage. | Junsheng Chen Jianfeng Huang Hai Wang Weihang Feng Tianmi Luo Yuzhu Hu Chengke Yuan Liyun Cao Yanni Jie Koji Kajiyoshi Yongqiang Feng | 2022 | Chinese Chemical Letters2022,33,8: | 0 |
| 13 | Facile synthesis of defect-rich Fe-N-C hybrid from fullerene/ferrotetraphenylporphyrin as efficient oxygen reduction electrocatalyst for Zn-air battery显示文摘Exploring remarkable oxygen reduction reaction(ORR)electrocatalysts for regenerative fuel cells and metal-air batteries is highly essential.Herein,a novel non-noble metal-based heterogeneous electrocatalyst with rich defects were successfully synthesized by liquid-liquid interfacial precipitation(LLIP)of fullerene(C_(60))and ferrotetraphenylporphyrin(FeTPP)followed by one step pyrolysis.The obtained product annealed at 700℃(C_(60)/FeTPP-700),when employed as ORR electrocatalyst,revealed a positive halfwave potential(E_(1/2))of 0.877 V vs.reversible hydrogen electrode(RHE),which was superior to that of the commercial 25%Pt/C.Delightfully,the assembled Zn-air battery(ZAB)using C_(60)/FeTPP-700 as an air-electrode catalyst exhibited a high power density of 153 m W/cm^(2),specific capacity of 668 mAh/g and long-term cycling stability for more than 250 h.Experimental results proved that the excellent electrocatalytic ORR activity of C_(60)/FeTPP-700 would attribute to the synergistic effect between FeN_xsites,Fe_(3)C/Fe nanoparticles and the structure defects.This work provides a feasible and simple method to prepare nonnoble metal-based ORR electrocatalysts for the application of energy storage and conversion. | Hai Wang Liyun Cao Yongqiang Feng Junsheng Chen Weihang Feng Tianmi Luo Yuzhu Hu Chengke Yuan Yajuan Zhao Yong Zhao Koji Kajiyoshi Yijun Liu Zhenjiang Li Jianfeng Huang | 2023 | Chinese Chemical Letters2023,34,5: | 0 |
| 14 | Biodiversity conservation in China:A review of recent studies and practices显示文摘Biodiversity conservation plays an important role in the sustainable development of human society.China had made significant progress in biodiversity conservation studies and practices.This paper reviews major achievements in China in the past decades,especially those since 2010.In terms of the science behind biodiversity conservation,Chinese scholars have made significant contributions to priority research subjects,including mechanisms for maintaining biological communities and the relationship between biodiversity and ecosystem functioning.Simultaneously,biodiversity conservation and management systems specific to China have been basically established.The Chinese Government and researchers have undertaken a number of investigations,scientific studies,and monitoring,and have established relevant databases.With efforts taken to protect and restore biodiversity and ecosystems,the concept of biodiversity has gradually become popular in China.This review is an attempt to share with the world the learning from China’s progress towards becoming an ecological civilization and highlights that the efforts towards biodiversity conservation need to be organically integrated with sustainable development goals. | Wei Wang Chunting Feng Fangzheng Liu Junsheng Li | 2020 | Environmental Science and Ecotechnology2020,,2: | 0 |
| 15 | Tunable spin textures in polar antiferromagnetic hybrid organic–inorganic perovskites by electric and magnetic fields显示文摘The hybrid organic–inorganic perovskites(HOIPs)have attracted much attention for their potential applications as novel optoelectronic devices.Remarkably,the Rashba band splitting,together with specific spin orientations in k-space(i.e.,spin texture),has been found to be relevant for the optoelectronic performances.In this work,by using first-principles calculations and symmetry analysis,we study the electric polarization,magnetism. | Feng Lou Teng Gu Junyi Ji Junsheng Feng Hongjun Xiang Alessandro Stroppa | 2020 | npj Computational Materials2020,,1: | 0 |
| 16 | Nature of spin-lattice coupling in two-dimensional CrI_(3) and CrGeTe_(3)显示文摘Spin-lattice (SL) coupling plays an important role in spintronic applications given its effects on magnetic,ferroelectric,optical,and thermodynamic properties.Experiments and theoretical calculations have revealed a large SL coupling effect in CrGeTe_(3) and CrI_(3) monolayers.However,the microscopic origin of SL coupling in these systems is still unclear.In this work,we develop a systematic method to explore the atomistic mechanism of SL coupling based on the density functional theory.We find that the first-and second-order SL couplings in ternary system CrGeTe_(3) are considerably stronger than those in binary system CrI_(3).For the first-order SL coupling,the Cr ions of the magnetic pair and Ge ions positively contribute to the strain enhancement of ferromagnetism in CrGeTe_(3).However,the Cr ions provide a negative contribution in CrI_(3).Furthermore,our tight-binding analysis suggests that the p-d hopping in CrGeTe_(3) gradually decreases with the tensile strain,rapidly enhancing the ferromagnetism under the tensile strain.The large frequency shifts in CrGeTe_(3) are caused by the large second-order exchange derivatives (one type of second-order SL coupling) of the Cr ions of the magnetic pair. | Jing Li JunSheng Feng PanShuo Wang ErJun Kan HongJun Xiang | 2021 | Science China(Physics,Mechanics & Astronomy)2021,64,8: | 0 |