|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Single-phase multiferroics: new materials, phenomena,and physics显示文摘Multiferroics,where multiple ferroic orders coexist and are intimately coupled,promise novel applications in conceptually new devices on one hand,and on the other hand provide fascinating physics that is distinctly different from the physics of high-Tc superconductors and colossal magnetoresistance manganites.In this mini-review;we highlight the recent progress of single-phase multiferroics in the exploration of new materials,efficient roadmaps for functionality enhancement,new phenomena beyond magnetoelectric coupling,and underlying novel physics.In the meantime;a slightly more detailed description is given of several multiferroics with ferrimagnetic orders and double-layered perovskite structure and also of recently emerging 2D multiferroics.Some emergent phenomena such as topological vortex domain structure,non-reciprocal response,and hybrid mechanisms for multiferroicity engineering and magnetoelectric coupling in various types of multiferroics will be briefly reviewed. | Chengliang Lu Menghao Wu Lin Lin Jun-Ming Liu | 2019 | National Science Review2019，6，4： | 9 |
| 2 | Effects of Bionic Volute Tongue on Aerodynamic Performance and Noise Characteristics of Centrifugal Fan Used in the Air-conditioner显示文摘The aerodynamic noise generated by the centrifugal fan used in the air conditioner is related to the comfort of human living and working,which can be controlled by using the bionic design and optimization of key components of centrifugal fan.Inspired by the non-smooth leading edge of long-eared owl wing,eight kinds of volute tongues are proposed to reduce the aerodynamic noise of a centrifugal fan.The flow and sound characteristics are numerically investigated by incorporating computational fluid dynamics and computational aero-acoustics.The optimal result exhibits a noise reduction of up to 1.5 dB with a slight increase in mass flow rate.The acoustic characteristics,with respect to the sound pressure level,power spectral density,and sound directivity are discussed.The time-domain,frequency-domain,and root mean square values of pressure fluctuation are monitored and analyzed to assess the unsteady flow interaction between the volute tongue and impeller.The intensity and scale of vortices in the centrifugal fan are suppressed in the upstream and downstream of the bionic volute tongue,and the turbulence effect on the surface of the volute tongue becomes even and weak. | Liming Wu Xiaomin Liu Menghao Wang | 2020 | Journal of Bionic Engineering2020，17，4： | 7 |
| 3 | Room-temperature multiferroicity and diversified magnetoelectric couplings in 2D materials显示文摘Multiferroics are rare in nature due to the mutual exclusive origins of magnetism and ferroelectricity. The simultaneous coexistence of robust magnetism/ferroelectricity and strong magnetoelectric coupling in single multiferroics is hitherto unreported, which may also be attributed to their potential conflictions. In this paper, we show the first-principles evidence of such desired coexistence in ultrathin-layer CuCrS2 and CuCrSe2. The vertical ferroelectricity is neither induced by an empty d shell nor spin-driven, giving rise to an alternative possibility of resolving those intrinsic exclusions and contradictions. Compared with their bulk phases, the ferromagnetism in the thin-layer structures(two–six layers) can be greatly stabilized due to the enhanced carrier density and orbital shifting by vertical polarization, and the Curie temperatures of both ferromagnetism and ferroelectricity can be above room temperature. Moreover, a considerable net magnetization can be reversed upon ferroelectric switching, where the change in spin-resolved band structure also renders efficient ‘magnetic reading + electrical writing’. The thickness-different layers may even exhibit diversified types of magnetoelectric coupling, which both enriches the physics of multiferroics and facilitates their practical applications. | Tingting Zhong Xiaoyong Li Menghao Wu Jun-Ming Liu | 2020 | National Science Review2020，7，2： | 2 |
| 4 | The variations of the Martian exobase altitude显示文摘The exobase is defined as the interface between the strongly collisional and the collisionless parts of an atmosphere. Although in reality the exobase is a transition region of finite depth, it is conventionally defined as the boundary above which an upwardly ejected neutral particle makes one collision at higher altitudes. Such an idealized definition is of practical use and serves as a good tracer of the overall size of an atmosphere as it expands and contracts under the influences of both external and internal sources. Knowledge of the atmospheric properties near the exobase is crucial to first-order estimates of atmospheric escape rates on terrestrial planets. Since its arrival at Mars on 21 September 2014, the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has provided comprehensive maps of the Martian upper atmosphere under a variety of conditions. This allows, for the first time, a thorough investigation of the variations of the exobase altitude on this red planet. In this study, we use the N2 density measurements accumulated by MAVEN’s Neutral Gas and Ion Mass Spectrometer from October 2014 to November 2018 to determine the exobase altitudes for a large number of MAVEN orbits. Our analysis reveals clearly the variations of exobase altitude with local time and solar extreme ultraviolet (EUV) flux, as well as tentative evidence for the impact of global dust storms. These observations are indicative of thermal expansion of the Martian upper atmosphere, driven either externally by solar EUV energy deposition or internally by global dust storms. | MengHao Fu Jun Cui XiaoShu Wu ZhaoPeng Wu Jing Li | 2020 | Earth and Planetary Physics2020，4，1： | 2 |
| 5 | Pneumatic and tendon actuation coupled muti-mode actuators for soft robots with broad force and speed range显示文摘Broad output force and speed ranges are highly desired for actuators to endow soft robots with high performance,thereby increasing the range of tasks they can accomplish.However,limited by their low structural stiffness and single actuation method,most of the existed soft actuators are still difficult to achieve a broad force and speed range with a relatively compact body structure.Here,we propose a pneumatic and tendon actuation coupled soft actuator(PTCSA)with multiple actuation modes,mainly composing of a multi-joint thermoplastic polyurethanes(TPU)-made skeleton sealed in a film sleeve.The TPU skeleton with certain structural stiffness combined with soft joints allows PTCSA to output small force and respond rapidly under pneumatic actuation,as well as output high force and flexibly regulate response speed under tendon actuation,therefore achieving a broad force and speed range with a compact structure.The multiple modes constructed from the two actuation methods with different force and speed properties can cover diverse application scenarios.To demonstrate its performance,PTCSA is further used to construct a soft robotic arm(with a maximum lifting speed of 198°/s and can easily lift a load of 200 g),an inchworm-inspired wheel-footed soft robot(moves at a high speed of 2.13 cm/s when unload or pulls a load of 300 g forward),and a soft gripper(can grasp diverse objects,from 0.1 g potato chips to an 850 g roll of Sn-0.7 Cu wire,from a high-speed moving tennis ball to an upright pen).This work indicates the potential of combining multiple complementary actuation methods to improve the force and speed range of soft actuators,and may provide inspiration for related research. | ZHU JiaQi PU MengHao CHEN Han XU Yi DING Han WU ZhiGang | 2022 | Science China(Technological Sciences)2022，65，9： | 1 |
| 6 | Ultra-high piezoelectric coefficients and strain-sensitive Curie temperature in hydrogen-bonded systems显示文摘We propose a new approach to obtain ultra-high piezoelectric coefficients that can be infinitely large theoretically,where ferroelectrics with strain-sensitive Curie temperature are necessary.We show the first-principles plus Monte Carlo simulation evidence that many hydrogen-bonded ferroelectrics(e.g.organic PhMDA) can be ideal candidates,which are also flexible and lead-free.Owing to the specific features of hydrogen bonding,their proton hopping barrier will drastically increase with prolonged proton transfer distance,while their hydrogen-bonded network can be easily compressed or stretched due to softness of hydrogen bonds.Their barriers as well as the Curie temperature can be approximately doubled upon a tensile strain as low as 2%.Their Curie temperature can be tuned exactly to room temperature by fixing a strain in one direction,and in another direction,an unprecedented ultra-high piezoelectric coefficient of 2058 pC/N can be obtained.This value is even underestimated and can be greatly enhanced when applying a smaller strain.Aside from sensors,they can also be utilized for converting either mechanical or thermal energies into electrical energies due to high pyroelectric coefficients. | Yangyang Ren Menghao Wu Jun-Ming Liu | 2021 | National Science Review2021，8，3： | 1 |
| 7 | Aerosol exposure assessment during reclaimed water utilization in China and risk evaluation in case of Legionella显示文摘Reclaimed water utilization provides an effective way to alleviate water shortage.However,the residual pathogens in the recycled water like Legionella,could be spread into the air as aerosols through water-to-air transmission process.Inhaling the aerosols by the people nearby increases their susceptibility to diseases.For estimating the health risks associated with the potential exposure of airborne Legionella emitted from the urban use of reclaimed water in China,nationwide questionnaire was designed to investigate the exposure habits of Chinese population in different scenarios.Quantitative microbial risk assessment(QMRA)served as the suitable explanatory tool to estimate the risk.The results indicated that annual infection probability of populations exposed to Legionella for three scenarios,0.0764(95%CI:0.0032−0.6880)for road cleaning,1.0000(95%CI:0.1883−1.0000)for greenfield irrigation,0.9981(95%CI:0.0784−1.0000)for landscape fountain,were markedly higher than the threshold recommended by WHO(10^(−4) per person per year(pppy))according to the concentration distribution of Legionella in the reclaimed water.An age-,educational background-,region-and gender-specific data in annual infection probability also showed different tendencies for some subpopulations.This study provides some detailed information on the health risks from the water reuse in China and will be useful to promote the safe application of reclaimed water in water-deficient areas. | Menghao Chen Liangliang Shi Gang Liu Xiaojin Wu Yun Lu | 2022 | Frontiers of Environmental Science & Engineering2022，16，7： | 1 |
| 8 | Charge-injection induced magnetism and half metallicity in single-layer hexagonal group Ⅲ / Ⅴ (BN,BP,AIN,AIP) systems显示文摘 | Wu Menghao Zhang Zhuhua Zeng Xiaocheng | 2010 | Applied Physics Letters2010，97，09： | 1 |
| 9 | Rational design of Fe-N-C electrocatalysts for oxygen reduction reaction:From nanoparticles to single atoms显示文摘As an alternative energy,hydrogen can be converted into electrical energy via direct electrochemical conversion in fuel cells.One important drawback of full cells is the sluggish oxygen reduction reaction(ORR)promoted by the high-loading of platinum-group-metal(PGM)electrocatalysts.Fe-N-C family has been received extensive attention because of its low cost,long service life and high oxygen reduction reaction activity in recent years.In order to further enhance the ORR activity,the synthesis method,morphology regulation and catalytic mechanism of the active sites in Fe-N-C catalysts are investigated.This paper reviews the research progress of Fe-N-C from nanoparticles to single atoms.The structure-activity relationship and catalytic mechanism of the catalyst are studied and discussed,which provide a guidance for rational design of the catalyst,so as to promote the more reasonable design of Fe-N-C materials. | Mengru Sun Changli Chen Menghao Wu Danni Zhou Zhiyi Sun Jianling Fan Wenxing Chen Yujing Li | 2022 | Nano Research2022，15，3： | 0 |
| 10 | Inorganic Nanoribbons with Unpassivated Zigzag Edges: Half Metallicity and Edge Reconstruction显示文摘我们调查了无机的 nanoribbons 的电子、结构的性质(BN, AlN,原文如此,轧了并且 ZnO ) 与用密度的 unpassivated 之字形边功能的理论计算。我们发现一般来说, unpassivated 之字形边能导致精力乐队切开纺纱。更有趣地,无机的 nanoribbons AlN 并且原文如此,与或二个边, unpassivated 被预言是一半金属性。在电子性质上的 unpassivated 边和它的效果的可能的结构的重建被调查。在 BN nanoribbon 的 unpassivated N 边和在高山 nanoribbon 的 P 边是精力充沛地不比相应的重建的边稳定。因此,在二个边的边重建可以发生在高温度。在这研究考虑的无机的 nanoribbons 的另外的 unpassivated 边都对边重建是柔韧的。 | Menghao Wu Xiaojun Wu Yong Pei Xiao Cheng Zeng | 2011 | Nano Research2011，4，2： | 0 |
| 11 | Constructing Stable and Potentially High-Performance Hybrid Organic-Inorganic Perovskites with“Unstable”Cations显示文摘A new family of functional hybrid organic-inorganic perovskites(HOIPs)is theoretically designed based on the following chemical insights:when a proton is adhered to molecules like water or ethanol,the newly formed larger-sized cations(e.g.,H_(5)O_(2)^(+),C_(2)H_(5)OH_(2)^(+),and CH_(3)SH^(+))entail low electron affinities mimicking superalkalis;they are conjugated acids of weak bases that cannot survive in solution,while their chemistry behavior in the HOIP frameworks,however,may be markedly different due to greatly enhanced cohesive energies of the proton,which facilitate the formation of new HOIPs.First-principles computations show that the putative formation reactions for these newly designed HOIPs typically release much more energy compared with the prevailing HOIP MAPbI3,suggesting the likelihood of facile solution-based fabrications,while the suppression of reverse formation suggests that the humidity stability may be markedly enhanced.During their formations,halide acids are unlikely to react with ethanol or methanethiol without the presence of metal halides,a condition further favoring their stability.The proposed structure of(H_(5)O_(2))PbI_(3)may also clarify the origin of the long-speculated existence of HPbI3.Importantly,density functional theory computations suggest that many of these HOIPs possess not only direct bandgaps with values within the optimal range for solar light absorbing but also more desirable optical absorption spectra than that of MAPbI3,where their ferroelectric polarizations also benefit photovoltaics.The stability and photovoltaic efficiency may be even further improved for the newly designed two-dimensional(2D)HOIPs and 2D/3D hybrid HOIP structures. | Qing Yang Menghao Wu Xiao Cheng Zeng | 2020 | Research2020，，1： | 0 |
| 12 | Composition,function,and timing:exploring the early‑life gut microbiota in piglets for probiotic interventions显示文摘Background The establishment of a robust gut microbiota in piglets during their early developmental stage holds the potential for long-term advantageous effects.However,the optimal timeframe for introducing probiotics to achieve this outcome remains uncertain.Results In the context of this investigation,we conducted a longitudinal assessment of the fecal microbiota of 63 piglets at three distinct pre-weaning time points.Simultaneously,we gathered vaginal and fecal samples from 23 sows.Employing 16S rRNA gene and metagenomic sequencing methodologies,we conducted a comprehensive analysis of the fluctuation patterns in microbial composition,functional capacity,interaction networks,and colonization resistance within the gut microbiota of piglets.As the piglets progressed in age,discernible modifications in intestinal microbial diversity,composition,and function were observed.A source-tracking analysis unveiled the pivotal role of fecal and vaginal microbiota derived from sows in populating the gut microbiota of neonatal piglets.By D21,the microbial interaction network displayed a more concise and efficient configuration,accompanied by enhanced colonization resistance relative to the other two time points.Moreover,we identified three strains of Ruminococcus sp.at D10 as potential candidates for improving piglets’weight gain during the weaning phase.Conclusions The findings of this study propose that D10 represents the most opportune juncture for the introduction of external probiotic interventions during the early stages of piglet development.This investigation augments our comprehension of the microbiota dynamics in early-life of piglets and offers valuable insights for guiding forthcoming probiotic interventions. | Jianping Quan Cineng Xu Donglin Ruan Yong Ye Yibin Qiu Jie Wu Shenping Zhou Menghao Luan Xiang Zhao Yue Chen Danyang Lin Ying Sun Jifei Yang Enqin Zheng Gengyuan Cai Zhenfang Wu Jie Yang | 2024 | Journal of Animal Science and Biotechnology2024，15，2： | 0 |
| 13 | Capturing 2D van der Waals magnets with high probability for experimental demonstration from materials science literature显示文摘2D van der Waals(vdW)magnets have opened intriguing prospects for next-generation spintronic nanodevices.Machine learning techniques and density functional theory calculations enable the discovery of 2D vdW magnets to be accelerated;however,current computational frameworks based on these state-ofthe-art approaches cannot offer probability analysis on whether a 2D vdW magnet can be experimentally demonstrated.Herein,a new framework can be established to overcome this challenge.Via the framework,2D vdW magnets with high probability for experimental demonstration are captured from materials science literature.The key to the successful establishment is the introduction of the theory of mutual information.Historical validation of predictions substantiates the high reliability of the framework.For example,half of the 302D vdW magnets discovered in the literature published prior to 2017 have been experimentally demonstrated in the subsequent years.This framework has the potential to become a revolutionary force for progressing experimental discovery of 2D vdW magnets. | Haiyang Song Yinghe Zhao Eleanor Turner YuWu Yuan Li Menghao Wu Guang Feng Huiqiao Li Tianyou Zhai | 2023 | InfoMat2023，5，4： | 0 |
| 14 | Integrative Proteomic Analysis of Multiple Posttranslational Modifications in Inflammatory Response显示文摘Posttranslational modifications(PTMs)of proteins,particularly acetylation,phosphorylation,and ubiquitination,play critical roles in the host innate immune response.PTMs’dynamic changes and the crosstalk among them are complicated.To build a comprehensive dynamic network of inflammation-related proteins,we integrated data from the whole-cell proteome(WCP),acetylome,phosphoproteome,and ubiquitinome of human and mouse macrophages.Our datasets of acetylation,phosphorylation,and ubiquitination sites helped identify PTM crosstalk within and across proteins involved in the inflammatory response.Stimulation of macrophages by lipopolysaccharide(LPS)resulted in both degradative and non-degradative ubiquitination.Moreover,this study contributes to the interpretation of the roles of known inflammatory molecules and the discovery of novel inflammatory proteins. | Feiyang Ji Menghao Zhou Huihui Zhu Zhengyi Jiang Qirui Li Xiaoxi Ouyang Yiming Lv Sainan Zhang Tian Wu Lanjuan Li | 2022 | Genomics, Proteomics & Bioinformatics2022，20，1： | 0 |
| 15 | High‑Valence Transition Metal Modified FeNiV Oxides Anchored on Carbon Fiber Cloth for Efficient Oxygen Evolution Catalysis显示文摘Developing efficient and durable non-noble metal-based oxygen evolution catalysts is of great importance for electrochemical water splitting.Here,we report a new and facile strategy for controllable synthesis of high-valence Mo modified FeNiV oxides as efficient OER catalysts.The Mo-dopant displays a significant influence on the valence state of Fe species in the catalysts,which lead to tunable OER performance.When the feed ratio of Mo-dopant is 5%,the Mo-modified FeNiV oxide shows the best OER performance in terms of low overpotential(237 mV at the current density of 10 mA cm^(−2)),Tafel slope(38 mV per decade),and high mass activity,which exceeds its counterparts and most reported OER catalysts.Furthermore,by assembling the catalyst with a carbon fiber cloth,the fabricated water-splitting device exhibits excellent activity and longterm durability in alkaline electrolyte compared with commercial catalysts equipped device.This work not only provides a series of Mo-modified FeNiV-based oxides as high-performance OER catalysts but also offers a new pathway to tune the charge states of OER active centers. | Zihe Wu Jiehui Yang Wenjie Shao Menghao Cheng Xianglin Luo Mi Zhou Shuang Li Tian Ma Chong Cheng Changsheng Zhao | 2022 | Advanced Fiber Materials2022，4，4： | 0 |
| 16 | Observation of room‐temperature out‐of‐plane switchable electric polarization in supported 3R‐MoS_(2) monolayers显示文摘Two‐dimensional(2D)ferroelectrics have attracted considerable attention due to their potential in the development of devices of miniaturization and multifunction.Although several van der Waals(vdW)‐layered materials show ferroelectricity,the experimental demonstrations of ferroelectric behavior in monolayers are very limited.Here we report the observation of room‐temperature out‐of‐plane switchable electric polarization in supported MoS_(2) monolayers exfoliated from 3R‐stacked bulk crystals under ambient conditions.Using in situ piezoelectric force microscopy and Kelvin probe force microscopy in a glovebox,we reveal that trapped water/ice molecules are responsible for this switchable electric polarization and this conclusion is strongly supported by theoretical simulations.It is worth noting that the water/ice trapping in the monolayers exfoliated from 2H‐stacked MoS_(2) crystals is not as much as that in 3R monolayers and,consequently,the out‐of‐plane electric polarization is missing there.Our findings indicate that monolayers with a trapped single layer of polar molecules might be emerging alternatives to 2D ferroelectrics.Furthermore,the stacking sequences may bring new properties and applications to 2D vdW materials not only when we stack them up but also when we thin them down. | Li Ma Liu Yang Yuqiang Fang Manzhang Xu Ruihuan Duan Vanessa Li Zhang Xuewen Wang Fuqiang Huang Menghao Wu Zheng Liu Ting Yu | 2023 | SmartMat2023，4，2： | 0 |
| 17 | Field-free switching through bulk spin−orbit torque in L10-FePt films deposited on vicinal substrates显示文摘L1_(0)-FePt distinguishes itself for its ultrahigh perpendicular magnetic anisotropy(PMA),enabling thermally stabile memory cells to scale down to 3 nm.The recently discovered“bulk”spin−orbit torques in L1_(0)-FePt provide an efficient and scalable way to manipulate the L1_(0)-FePt magnetization.However,the existence of an external field during the switching limits its practical application,and therefore field-free switching of L1_(0)-FePt is highly demanded.In this manuscript,by growing the L1_(0)-FePt film on vicinal MgO(001)substrates,we realize the field-free switching of L1_(0)-FePt.This method is different from previously established strategies as it does not need to add other functional layers or create asymmetry in the film structure.The dependence on the vicinal angle,film thickness,and growth temperature demonstrates a wide operation window for the fieldfree switching of L1_(0)-FePt.We confirm the physical origin of the field-free switching is due to the tilted anisotropy of L1_(0)-FePt induced by the vicinal surface.We also quantitatively characterize the spin-orbit torques in the L1_(0)-FePt films.Our results extend beyond the established strategies to realize field-free switching,and potentially could be applied to mass production. | Yongming Luo Yanshan Zhuang Zhongshu Feng Haodong Fan Birui Wu Menghao Jin Ziji Shao Hai Li Ru Bai Yizheng Wu Ningning Wang Tiejun Zhou | 2022 | Frontiers of physics2022，17，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员