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| 1 | Birth of fertile bimaternal offspring following intracytoplasmic injection of parthenogenetic haploid embryonic stem cells显示文摘 | Zhikun Li Haifeng Wan Guihai Feng Leyun Wang Zhengquan He YukaiWang Xiu-Jie Wang Wei Li Qi Zhou Baoyang Hu | 2016 | Cell Research2016，26，1： | 15 |
| 2 | Investigation of the alloying effect on deformation behavior in Mg by Visco-Plastic Self-Consistent modeling显示文摘Alloying elements can drastically alter the deformation behavior of Mg.In the present work,Visco-Plastic Self-Consistent(VPSC)modeling was employed to investigate the effect of alloying elements on Mg’s tensile behavior,in particular the relative activity of different slip and twinning modes.Mg-0.47 wt.%Ca,Mg-2 wt.%Nd,and AZ31 extruded alloys were deformed by micro-tensile tests in a scanning electron microscope(SEM).Texture and grain size measured by electron backscatter diffraction(EBSD)were used as the input for VPSC.After parameter optimization,the VPSC model successfully reproduced the stress-strain curve of each alloy.Simulation results indicate that the slip/twinning activity in the three alloys are different.Mg-0.47 wt.%Ca shows strong extrusion texture,and prismatic slip was quite active during its tensile deformation.In contrast,Mg-2 wt.%Nd shows weak extrusion texture,and basal slip was dominant.This alloy also developed more twinning activity than the other two alloys.AZ31 shows strong extrusion texture similar as Mg-0.47 wt.%Ca,but prismatic slip was less active in it.The slip/twinning activity revealed by the VPSC model can explain the difference in the tensile behavior of the three alloys. | Alireza Maldar Leyun Wang Gaoming Zhu Xiaoqin Zeng | 2020 | Journal of Magnesium and Alloys2020，8，1： | 5 |
| 3 | Grain-scale deformation in a Mg-0.8wt% Y alloy using crystal plasticity finite element method显示文摘Magnesium(Mg) alloys with hexagonal close-packed(HCP) structure usually have a poor ductility at room temperature. The addition of yttrium(Y) can improve the ductility of Mg alloys. To understand the underlying mechanism, crystal plasticity finite element method(CPFEM) was employed to simulate the tensile deformation of a Mg-0.8 wt% Y alloy. The simulated stress–strain curve and the grain-scale slip activities were compared with an in-situ tensile test conducted in a scanning electron microscope.According to the CPFEM result, basal slip is the dominant deformation mode in the plastic deformation stage, accounting for about 50% of total strain. Prismatic slip and pyramidal a slip are responsible for about 25% and 20% of the total strain, respectively. Pyramidal c + a slip and twinning, on the other hand,accommodate much less strain. | Wenxue Li Leyun Wang Bijin Zhou Chuanlai Liu Xiaoqin Zeng | 2019 | Journal of Materials Science & Technology2019，35，10： | 5 |
| 4 | Basal-plane stacking-fault energies of Mg alloys: A first-principles study of metallic alloying effects显示文摘Generalized stacking-fault energies(GSFEs) of basal-plane stacking faults I1 and I2 in Mg alloys have been studied based on first-principles calculations, where 43 alloying elements were considered. It is found that the most contributing features of alloying elements to GSFEs are bulk modulus, equilibrium volume,binding energy, atomic radius and ionization energy. Both bulk modulus and ionization energy exhibit positive relationships with GSFEs, and the others show opposite relationships. Multiple regressions have been performed to offer a quantitative prediction for basal-plane GSFEs in Mg-X systems. GSFEs, alloying effects of elements and the prediction model established within this work may provide guidelines for new Mg alloys design with better ductility. | Qing Dong Zhe Luo Hong Zhu Leyun Wang Tao Ying Zhaohui Jin Dejiang Li Wenjiang Ding Xiaoqin Zeng | 2018 | Journal of Materials Science & Technology2018，34，10： | 4 |
| 5 | INFLUENCE OF PRECIPITATES AND THEIR DISTRIBUTION ON SEAWATER CORROSION RESISTANCE OF Al-Mg ALLOY显示文摘INFLUENCEOFPRECIPITATESANDTHEIRDISTRIBUTIONONSEAWATERCORROSIONRESISTANCEOFAlMgALLOY①LinLeyun,ZhangQihai,YangZhiminBeijingGen... | Lin, Leyun Zhang, Qihai Yang, Zhimin | 1997 | 中国有色金属学会会刊:英文版1997，7，1： | 4 |
| 6 | Confined interface engineering of self-supported Cu@N-doped graphene for electrocatalytic CO_(2) reduction with enhanced selectivity towards ethanol显示文摘Electroreduction of greenhouse gas CO_(2) into value-added fuels and chemicals provides a promising pathway to address the issues of energy crisis and environmental change.However,the regulations of the selectivity towards C2 product and the competing hydrogen evolution reaction(HER)are major challenges for CO_(2) reduction reaction(CO_(2)RR).Here,we develop an interface-enhanced strategy by depositing a thin layer of nitrogen-doped graphene(N-G)on a Cu foam surface(Cu-N-G)to selectively promote the ethanol pathway in CO_(2)RR.Compared to the undetectable ethanol selectivity of pure Cu and Cu@graphene(Cu-G),Cu-N-G has boosted the ethanol selectivity to 33.1%in total Faradic efficiency(FE)at−0.8 V vs.reversible hydrogen electrode(RHE).The experimental and density functional theory(DFT)results verify that the interconnected graphene coating can not only serve as the fast charge transport channel but also provide confined nanospace for mass transfer.The N doping can not only trigger the intrinsic interaction between N in N-G and CO_(2) molecule for enriching the local concentration of reactants but also promote the average valence state of Cu for C–C coupling pathways.The confinement effect at the interface of Cu-N-G can not only provide high adsorbed hydrogen(Had)coverage but also stabilize the key*HCCHOH intermediate towards ethanol pathway.The provided interface-enhanced strategy herein is expected to inspire the design of Cubased CO_(2)RR electrocatalysts towards multi-carbon products. | Dejin Zang Xuejiao JGao Leyun Li Yongge Wei Haiqing Wang | 2022 | Nano Research2022，15，10： | 3 |
| 7 | Functional delivery vehicle of organic nanoparticles in inorganic crystals显示文摘Encapsulation of bioactive substances for extended shelf life and controlled,targeted release is critical for their applications in food and drug delivery.Here,a new method has been developed to encapsulate bioactive molecules in the crystal composites,showing greatly enhanced stability and unique pHtriggered response.Chlorophyll,a model bioactive,is first loaded in shellac nanoparticles via coprecipitation with a high encapsulation efficiency,and then the chlorophyll-loaded nanoparticles are incorporated into calcite crystals grown from a gel media containing the nanoparticles.Under the protection of shellac nanoparticles and calcite crystals,chlorophyll shows excellent stability even under light.Encapsulated chlorophyll could only be released by first dissolving the calcite crystals under acidic condition and then dissolving the shellac nanoparticles under alkaline condition.The unique pHtriggered release mimics the pH change from acidic in the stomach to alkaline in the intestine and is thus well suited for controlled,targeted intestinal release.This work suggests that the crystal composites are an ideal delivery vehicle for the functional design of bioactive molecules. | Linlin Kong Xinyi Jin Dapeng Hu Leyun Feng Dong Chen Hanying Li | 2019 | Chinese Chemical Letters2019，30，12： | 2 |
| 8 | Origins of high ductility exhibited by an extruded magnesium alloy Mg-1.8Zn-0.2Ca:Experiments and crystal plasticity modeling显示文摘Low ductility and strength are major bottlenecks against Mg alloys’wide applications.In this work,we systematically design the composition and fabrication process for a low-alloyed Mg-Zn-Ca alloy,showing that it can be extruded at low temperatures(~250℃)and high speeds(~2 mm/s).After the extrusion,this alloy exhibits a substantially weakened basal texture,relatively small grain size,very high tensile elongation(~30%),and good strength.The origin of the considerably improved ductility was studied using a combination of three-dimensional atom probe tomography(3D-APT),transmission electron microscopy(TEM),electron backscattered diffraction(EBSD)in conjunction with surface slip trace analysis,in-situ synchrotron X-ray diffraction,and elasto-plastic self-consistent(EPSC)modeling.Co-segregation of Zn and Ca atoms at a grain boundary is observed and associated with texture weakening and grain boundary mediated plasticity,both improving the ductility.While basal slip and prismatic slip are identified as the dominant deformation systems in the alloy,the ratio between their slip resistances is substantially reduced relative to pure Mg and most other Mg alloys,significantly contributing to the improved ductility of the alloy.This Mg-Zn-Ca alloy exhibiting excellent mechanical properties and low fabrication cost is a promising candidate for industrial productions. | Jie Wang Gaoming Zhu Leyun Wang Evgenii Vasilev Jun-Sang Park Gang Sha Xiaoqin Zeng Marko Knezevic | 2021 | Journal of Materials Science & Technology2021，，25： | 2 |
| 9 | SARS-CoV-2 Omicron RBD shows weaker binding affinity than the currently dominant Delta variant to human ACE2显示文摘Dear Editor,SARS-coronavirus-2(SARS-CoV-2)Omicron variant(B.1.1.529)is of great concern to the world due to its multiple mutations that may have an impact on transmissibility and immune evasion.1 Compared to the wild type(WT),Omicron carries as many as 30 single point mutations,3 deletion mutation and one insertion mutation on its spike protein.Strikingly,there are 15 mutations observed in the Omicron receptor-binding domain(RBD),10 of which are in the receptor-binding motif(RBM)that human angiotensin-converting enzyme 2(ACE2)and most monoclonal antibodies(mAbs)interact directly with.As a comparison,the currently dominant variant Delta(B.1.617.2)has only 2 mutations(L452R and T478K)in its RBM and additional K417N and E484K mutations sometimes.Therefore,Omicron variant may significantly impact the binding affinity to ACE2 and effectiveness of currently available mAbs.Consequently,Omicron mutant has aroused wide concern,many countries have taken measures on entry restrictions to prevent its rapid spread.However,the transmissibility and immune evasion risk of Omicron have not been properly evaluated. | Leyun Wu Liping Zhou Mengxia Mo Tingting Liu Chengkun Wu Chunye Gong Kai Lu Likun Gong Weiliang Zhu Zhijian Xu | 2022 | Signal Transduction and Targeted Therapy2022，7，2： | 2 |
| 10 | Diffusion mechanism of dezincification in double phase brass exposed to seawater显示文摘Zinc diffusion kinetics of double phase brass as they were corroded in seawater was investigated by means of metallography microscope and mathematics regression analysis. The results showed that, the dezincification corrosion of β phase continuous HMn58 2 brass is characterized by β phase volume diffusion, while that of α phase continuous HSn62 1 brass is controlled by α phase grain boundary diffusion. Apparent diffusion coefficients of zinc in both types alloys were calculated out by founding diffusion equation and boundary conditions. It was found that the value of theoretical calculation is close to that of experimentally measured, and it confirmed that Sn element inhibits dezincification of brass. The relativity between the dezincification depth and corrosion rate of different double phase brasses immersed in seawater was revealed. : Zinc diffusion kinetics of double phase brass as they were corroded in seawater was investigated by means of metallography microscope and mathematics regression analysis. The results showed that, the dezincification corrosion of β phase continuous HMn58 2 brass is characterized by β phase volume diffusion, while that of α phase continuous HSn62 1 brass is controlled by α phase grain boundary diffusion. Apparent diffusion coefficients of zinc in both types alloys were calculated out by founding diffusion equation and boundary conditions. It was found that the value of theoretical calculation is close to that of experimentally measured, and it confirmed that Sn element inhibits dezincification of brass. The relativity between the dezincification depth and corrosion rate of different double phase brasses immersed in seawater was revealed. | Liu Zengcai(刘增才) Lin Leyun(林乐耘) Liu Shaofeng(刘少峰) Zhao Yuehong(赵月红) | 1999 | 中国有色金属学会会刊:英文版1999，9，3： | 1 |
| 11 | 查看详情显示文摘 | Yan Yumin Lin Leyun | | Cailiaobaohu0，，： | 1 |
| 12 | Clusterphene:A new two-dimensional structure from cluster selfassembly显示文摘Since the advent of graphene in 2004,two-dimensional(2D)materials had ignited the development of fascinating functional materials for almost 20 years.Currently,the main members of 2D materials family are graphene,transition metal dichalcogenides(TMDs,MoS_(2),WS_(2),and others),MXenes(Ti_(3)C_(2),Ta_(4)C_(3),and others),Xenes(B,Si,P,Ge,and Sn),organic materials(COF,covalent organic frameworks),etc.The unique sheet-like morphology(single-or few-atomic-layer thickness)endow 2D materials with unconventional physicochemical properties for promising applications in catalysis,energy storage/conversion,electronics,biomedicine,sensors,etc.Nevertheless,the exploration and preparation of novel twodimensional materials with desired characteristics through highly controlled strategy remains one of the major challenges in this field.In a recent work from Nature Chemistry published on 10 February 2022,Liu et al.reported a new member,clusterphene,in the family of two-dimensional materials. | Jian Zhou Leyun Li Xuejiao J.Gao Haiqing Wang | 2022 | Nano Research2022，15，7： | 1 |
| 13 | Assessment of quantitative FDG PET data in primary colorectal tumours: which parameters are important with respect to tumour detection?显示文摘 | Ludwig G. Strauss Sven Klippel Leyun Pan Klaus Sch?nleben Uwe Haberkorn Antonia Dimitrakopoulou-Strauss | 2007 | European Journal of Nuclear Medicine and Molecular Imaging2007，，6： | 1 |
| 14 | Calibration of cone beam CT using relative attenuation ratio for quantitative assessment of bone density: a small animal study显示文摘 | Yifei Liu Tobias B?uerle Leyun Pan Antonia Dimitrakopoulou-Strauss Ludwig G. Strauss Christian Heiss Reinhard Schnettler Wolfhard Semmler Liji Cao | 2013 | International Journal of Computer Assisted Radiology and Surgery2013，，5： | 1 |
| 15 | Intergranular precipitation of copper-nickel alloys induced by seawater corrosion显示文摘This paper presents the observed grain boundary structure of Cu:Ni 70:30 alloy tubes before and after exposure to seawater. The results show that the thin platelet precipitates along grain boundaries of the alloys nucleated in the process of heat treatment and coarsened when they were exposed to seawater, indicating that the coarsening was induced by seawater corrosion. The diffraction image of the precipitate is fringe structure and possessed its own wave lengths. The fine scale structure is susceptible to intergranular corrosion, which could be confirmed by corrosion morphology observation of specimens after a long-time seawater exposure. The experiments were carried out by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), optical metallography (OM) and tensile testing etc., detecting corrosion morphology, microstructure and the mechanical property change due to the precipitation coarsening induced at grain boundaries of the specimens during exposure in seawater. | LIN LeYun ZHAO YueHong | 2009 | Chinese Science Bulletin2009，54，19： | 1 |
| 16 | THE INFLUENCE OF RESIDUAL STRESS ON THE CORROSION RESISTANCE OF H68A BRASS TUBES IN SEA WATER显示文摘This paper reveals the morphological characteristics of the cracks formed in H68A brass tubes fully immersed in seawater, and studies the depth profiles of the residual stress of the tubes. Tbe great residual stress in the wall results in stress-corrosion cracking, and the unique morphology of the cracks is due to the uneven distribution of residual stress through the depth of the tube. | Yan, Yumin Zhu, Xiaolong Lin, Leyun Beijing General Research Institute for Nonferrous Metals, Beijing 100088, China | 1993 | 中国有色金属学会会刊:英文版1993，3，1： | 1 |
| 17 | Sperm cryopreservation of yellow drum Nibea albiflora : A special emphasis on post-thaw sperm quality显示文摘 | Tongren Dai Enhui Zhao Gang Lu Kai Che Qiutao He Yonglin Lu Qiongshan Fang Hansheng Wang Leyun Zheng Suping Li Changjiang Huang Qiaoxiang Dong | 2012 | Aquaculture2012，，： | 1 |
| 18 | 土地利用方式对黄河漫滩土壤微生物群落结构和多样性的影响显示文摘土壤微生物群落及其多样性是土壤碳和养分循环的重要生物指标。土地利用变化是影响漫滩生态系统土壤微生物群落组成的主要决定因素。然而,土壤微生物群落的结构和多样性如何响应土地利用变化,以及这些变化的主要驱动因素是什么,仍不清楚。本研究在黄河漫滩进行,以检验土地利用变化对土壤微生物群落的影响。选取了4种土地利用类型(灌丛、农田、草地和森林),其中以灌木地为对照,用磷脂脂肪酸测量了土壤微生物组成和多样性。研究结果表明,土地利用变化显著影响了总细菌、真菌和革兰氏阳性/阴性细菌。与灌丛相比,农田的总磷脂脂肪酸和细菌较高,森林的真菌较高。土壤pH值和全磷是微生物组成的最佳预测因子,分别解释了37%和26%的变异性。土壤全氮和硝态氮是影响微生物多样性的主要因素。花生农田的土壤碳含量、土壤碳储量、磷脂脂肪酸总量和微生物多样性最高,表明漫滩具有巨大的碳汇潜力。这些研究结果表明,黄河漫滩的农田对于维持土壤微生物群落和土壤碳固存至关重要。 | Xiongde Dong Leyun Yang Laura Sofie Harbo Xinyu Yan Ji Chen Cancan Zhao Yutong Xiao Hao Liu Shilin Wang Yuan Miao Dong Wang Shijie Han | 2023 | Journal of Plant Ecology2023，16，1： | 0 |
| 19 | Differential temperature responses between Plutella xylostella and its specialist endo-larval parasitoid Diadegma semiclausum—Implications for biological control显示文摘Understanding the thermal dynamics of host-parasitoid interactions is crucial to predicting how biological control of pest insects by parasitoids might be affected by geographic location and climate change.We compared performance traits of Plutella xylostella(Lepidoptera:Plutellidae)and its solitary endo-larval parasitoid Diadegma semiclausum(Hymenoptera:Ichneumonidae),over a wide range of constant rearing temperatures(10-30℃).Parasitoids reared at 30℃ experienced reductions in pupation rate,pupal mass,egg load,and adult life span when compared with those reared at lower temperatures.Our analyses of the fate of parasitoids and their hosts and intergenerational population growth at different rearing temperatures show that D.semiclausum and P.xylostella respond differently to temperature,leading to divergent outcomes under different temperature conditions.Some parasitoid larvae could not complete development at 30℃,the temperature at which the host biomass was least and the metabolic demands of the parasitoid could be high,suggesting that parasitoid development might be constrained by lack of host resources at higher temperatures.We discuss the potential mechanisms of parasitoid susceptibility to elevated temperatures,which likely explain the pronounced seasonal dynamics of D.semiclausum in subtropical regions and its failure to establish in lowland tropical regions,where P.xylostella is a serious pest.Similar interactions in other host-parasitoid associations would constrain the efficacy of parasitoids as biological control agents as global temperatures increase. | Leyun Wang Kayvan Etebari Zihua Zhao Gimme H.Walter Michael J.Furlong | 2022 | Insect Science2022，29，3： | 0 |
| 20 | Increased nitrogen fertilization inhibits the biocontrol activity promoted by the intercropping partner plant显示文摘The examination of the compatibility between agricultural practices and biocontrol activities is crucial for establishing an efficient,eco-friendly,and sustainable pest management program.In this study,we examined the population dynamics of two specialist aphids,the English grain aphid(Sitobion avenae)on potted wheat and the pea aphid(Acyrthosiphon pisum)on potted alfalfa,as well as the biocontrol activity of a generalist predator,the harlequin ladybird beetle(Harmonia axyridis).We investigated their responses to the presence of the intercropping partner plant species(alfalfa and wheat,respectively)through plant volatiles or visual cues at three nitrogen fertilizer levels in a greenhouse.In the absence of the predator,the English grain aphid population growth rate increased significantly with increasing nitrogen levels,whereas the pea aphid population increased significantly more slowly in response to high nitrogen levels.The English grain aphid and pea aphid population dynamics were unaffected by the presence of the intercropping partner.However,the presence of the intercropping partner enhanced the control of both aphid populations by the harlequin ladybird beetle.Increasing nitrogen fertilizer levels decreased the predation rates,which were otherwise increased by the intercropping partner.The beneficial effects of the intercropping partner were eventually non-existent at the highest nitrogen level tested.These results imply that the interaction between the presence of intercropping partner and the nitrogen fertilizer application affects the biocontrol activity of the natural enemies of insect pests.Thus,the compatibility between agricultural intensification and biocontrol strategies in integrated pest management programs need to be investigated. | Leyun Wang Hongying Cui Xinyue Chang Mengmeng Zhu Zihua Zhao | 2021 | Insect Science2021，28，4： | 0 |
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