|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Microstructure and mechanical properties of FeCoNiCr high-entropy alloy strengthened by nano-Y_2O_3 dispersion显示文摘In this manuscript, the FeCrCoNi high entropy alloy strengthened by nano-Y_2 O_3 particles was synthesized via mechanical alloying and spark plasma sintering. Effects of Y_2 O_3 additions on the microstructure and mechanical properties were investigated.The oxide-dispersion-strengthened(ODS) high-entropy alloy bearing 5 wt% Y_2 O_3 was found to have a finer grain with respect to the single-phase face-centered cubic(FCC) alloy without oxides. Consequently, the yield strength increased from 654 to1754 MPa, and the fracture strength reached up to 2325 MPa while the plasticity decreased appreciably for the ODS high-entropy alloy. The synergic effects of grain size hardening and particle strengthening on mechanical properties of the ODS HEA were discussed. This finding indicates that the addition of nano-scaled oxides is an effective and feasible approach to designing HEAs with superior mechanical properties. | jia bei liu xiongjun wang hui wu yuan lu zhaoping | 2018 | Science China(Technological Sciences)2018，61，2： | 12 |
| 2 | Estimation on Aesthetic Value of Tourist Landscapes in a Natural Heritage Site:Kanas National Nature Reserve,Xinjiang,China显示文摘Most world natural heritage sites are designated partly by reason of their prominent aesthetic values in accordance with Article Ⅶ of World Natural Heritage Convention.In this paper, the aesthetic values of Kanas National Nature Reserve, which has potential for such designation, was analyzed quantitatively using scenic beauty estimation(SBE).The landscapes of 19 representative scenic spots in the Kanas National Nature Reserve in summer and autumn were selected as the objects of evaluation.The contributions of different landscape factors to the aesthetic value of the Kanas National Nature Reserve were revealed using a multivariate quantitative model.The main factors affecting the aesthetic value were waterscapes, vegetation, mountains, folk culture and the tourist environment.The t-test and F-test results are extremely significant.According to the results, some suggestions were given for conserving the landscapes in the Kanas National Nature Reserve. | DI Feng YANG Zhaoping LIU Xuling WU Jingrui MA Zhongguo | 2010 | Chinese Geographical Science2010，20，1： | 11 |
| 3 | Artificial intelligence in drug design显示文摘Thanks to the fast improvement of the computing power and the rapid development of the computational chemistry and biology,the computer-aided drug design techniques have been successfully applied in almost every stage of the drug discovery and development pipeline to speed up the process of research and reduce the cost and risk related to preclinical and clinical trials.Owing to the development of machine learning theory and the accumulation of pharmacological data, the artificial intelligence(AI) technology, as a powerful data mining tool, has cut a figure in various fields of the drug design, such as virtual screening,activity scoring, quantitative structure-activity relationship(QSAR) analysis, de novo drug design, and in silico evaluation of absorption, distribution, metabolism, excretion and toxicity(ADME/T) properties. Although it is still challenging to provide a physical explanation of the AI-based models, it indeed has been acting as a great power to help manipulating the drug discovery through the versatile frameworks. Recently, due to the strong generalization ability and powerful feature extraction capability,deep learning methods have been employed in predicting the molecular properties as well as generating the desired molecules,which will further promote the application of AI technologies in the field of drug design. | Feisheng Zhong Jing Xing Xutong Li Xiaohong Liu Zunyun Fu Zhaoping Xiong Dong Lu Xiaolong Wu Jihui Zhao Xiaoqin Tan Fei Li Xiaomin Luo Zhaojun Li Kaixian Chen Mingyue Zheng Hualiang Jiang | 2018 | Science China(Life Sciences)2018，61，10： | 10 |
| 4 | A Novel Pneumatic Soft Gripper with a Jointed Endoskeleton Structure显示文摘In current research on soft grippers,pneumatically actuated soft grippers are generally fabricated using fully soft materials,which have the advantage of flexibility as well as the disadvantages of a small gripping force and slow response speed.To improve these characteristics,a novel pneumatic soft gripper with a jointed endoskeleton structure(E-Gripper)is developed,in which the muscle actuating function has been separated from the force bearing function.The soft action of an E-Gripper finger is performed by some air chambers surrounded by multilayer rubber embedded in the restraining fiber.The gripping force is borne and transferred by the rigid endoskeleton within the E-Gripper finger Thus,the gripping force and action response speed can be increased while the flexibility is maintained.Through experiments,the bending angle of each finger segment,response time,and gripping force of the E-Gripper have been measured,which provides a basis for designing and controlling the soft gripper The test results have shown that the maximum gripping force of the E-Gripper can be 35 N,which is three times greater than that of a fully soft gripper(FS-Gripper)of the same size.At the maximum charging pressure of 150 kPa,the response time is1.123 s faster than that of the FS-Gripper.The research results indicate that the flexibility of a pneumatic soft gripper is not only maintained in the case of the E-Gripper,but its gripping force is also obviously increased,and the response time is reduced.The E-Gripper thus shows great potential for future development and applications. | Zhaoping Wu Xiaoning Li Zhonghua Guo | 2019 | Chinese Journal of Mechanical Engineering2019，32，5： | 9 |
| 5 | Dynamic deformation behavior of a face-centered cubic FeCoNiCrMn high-entropy alloy显示文摘In this study, mechanical tests were conducted on a face-centered cubic Fe Co Ni Cr Mn high-entropy alloy,both in tension and compression, in a wide range of strain rates(10^(-4)–10~4 s^(-1)) to systematically investigate its dynamic response and underlying deformation mechanism. Materials with different grain sizes were tested to understand the effect of grain size, thus grain boundary volume, on the mechanical properties. Microstructures of various samples both before and after deformation were examined using electron backscatter diffraction and transmission electron microscopy. The dislocation structure as well as deformation-induced twins were analyzed and correlated with the measured mechanical properties.Plastic stability during tension of the current high-entropy alloy(HEA), in particular, at dynamic strain rates, was discussed in lights of strain-rate sensitivity and work hardening rate. It was found that, under dynamic conditions, the strength and uniform ductility increased simultaneously as a result of the massive formation of deformation twins. Specifically, an ultimate tensile strength of 734 MPa and uniform elongation of $63% are obtained at 2.3 × 10~3 s^(-1), indicating that the alloy has great potential for energy absorption upon impact loading. | Junyang He Qi wang Husheng Zhang Lanhong Dai Toshiji Mukai Yuan Wu Xiongjun Liu Hui Wang Tai-Gang Nieh Zhaoping Lu | 2018 | Science Bulletin2018，63，6： | 9 |
| 6 | Improving plasticity of the Zr46Cu46Al8 bulk metallic glass via thermal rejuvenation显示文摘In this paper,effects of cryogenic thermal cycling on deformation behavior and thermal stability of the Zr_(46)Cu_(46)Al_8bulk metallic glass(BMG)were studied.The results show that with the increase of the number of cryogenic thermal cycles(CTC),thermal stability remains almost unchanged,while the plasticity is increased,indicating that the cryogenic thermal cyclic treatment is an effective way to improve plasticity of metallic glasses without distinctly deteriorating thermal stability.Our analysis suggests that the increase in the defect density resulted from the cryogenic thermal treatments are responsible for the plasticity increment.Variation of yield strength can be well interpreted from microstructural percolation which affected by both density and characteristic volume of the defect sites. | Wenli Song Xiaohe Meng Yuan Wu Di Cao Hui Wang Xiongjun Liu Xianzhen Wang Zhaoping Lu | 2018 | Science Bulletin2018，63，13： | 9 |
| 7 | Short-range ordering and its effects on mechanical properties of high-entropy alloys显示文摘In this letter,we briefly summarize experimental and theoretical findings of fo rmation and characterization of short-range orderings(SROs)as well as their effects on the defo rmation behavior of high-entropy alloys(HEAs).We show that existence of SROs is a common yet key structural feature of HEAs,and tuning the degree of SROs is an effective way for optimizing mechanical properties of HEAs.In additional,the challenges concerning about formation mechanism and characterization of SROs in HEAs are discussed,and future research activities in this regard are also proposed. | Yuan Wu Fei Zhang Xiaoyuan Yuan Hailong Huang Xiaocan Wen Yihan Wang Mengyuan Zhang Honghui Wu Xiongjun Liu Hui Wang Suihe Jiang Zhaoping Lu | 2021 | Journal of Materials Science & Technology2021，，3： | 8 |
| 8 | Relationship between composite structures and compressive properties in CuZr-based bulk metallic glass system显示文摘Bulk metallic glass (BMG) composites with the austenite B2 phase as reinforcement macroscopically showed strain hardening behavior due to the plasticity induced by martensitic transformation during deformation. Relationship between characteristics of the B2-CuZr reinforcing phase and uniaxial compressive properties of CuZr-based BMG composites was studied. Mechanical properties of these BMG composites were found to depend on not only the reinforced phases but also the amorphous matrix,and the yield and fracture strength can be roughly estimated by the rule of mixture principle. Distribution of the reinforced B2-CuZr phase has an important impact on the compressive plasticity even for the composites with a similar volume fraction of the crystalline phase. | WU Yuan SONG WenLi ZHANG ZhongYan HUI XiDong MA Dong WANG XunLi SHANG XinCun LU ZhaoPing | 2011 | Chinese Science Bulletin2011，56，36： | 8 |
| 9 | Magnetocaloric effect in Er-Al-Co bulk metallic glasses显示文摘A series of Er-Al-Co bulk metallic glasses (BMGs) have been prepared by the copper mold casting method. The glass forming ability and magnetocaloric effect (MCE) for these alloys have been investigated. The second-order magnetic transition from para-magnetic to ferromagnetic states takes place at about 9 K. These BMGs exhibit excellent MCE because of their large effective magneton number; Er56Al24Co20 BMG has a maximum entropy change and refrigeration capacity of 16.06 J kg-1 K-1 and 546 J kg-1,respectively,under the field of 50 kOe (10 kOe=795.775 kA/m) indicating that these BMGs are potential candidate magnetic materials for hydrogen liquefaction. | HUI XiDong XU ZhiYi WU Yuan CHEN XiaoHua LIU XiongJun LU ZhaoPing | 2011 | Chinese Science Bulletin2011，56，36： | 6 |
| 10 | Effects of cooling rates on the mechanical properties of a Ti-based bulk metallic glass显示文摘Mechanical properties of the glassy specimens fabricated at different cooling rates with a composition of Ti40Zr25Cu12Ni3Be20 were systematically investigated. It was confirmed that faster cooling rates caused not only a larger amount of frozen-in free volume but also a higher glass transition temperature in the bulk glassy alloy. Increase in the free volume was found to favor plastic deformation and then to give rise to larger compressive plasticity, whilst the rise in the glass transition temperature seemed to be closely related to the higher yield strength. Moreover, the increase of yield strength and plasticity induced by fast cooling rates may also be associated with the residual stress generated during the fabrication process. Our results suggest that the deformation behavior of bulk metallic glasses is sensitive to various factors and influences from the other factors should be excluded as far as cooling-rate effects on bulk metallic glasses are considered. | XIAO YueHua, WU Yuan, LIU ZhiYuan, WU HongHui & Lü ZhaoPing State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，3： | 6 |
| 11 | Spatiotemporal characteristics of cultural sites and their driving forces in the Ili River Valley during historical periods显示文摘这研究使用 ArcGIS 在西北的中国在 Ili 河山谷分析文化地点的空间与时间的分发。它探索在这些地点之间的关系空间与时间的进化特征,人的历史,和自然环境。结果显示这些地点的数字和比例,和他们的出现的频率,在六个历史的时期期间展出了一个转换塑造 V 的变化趋势。在东方高、在转移到的开始的三个时期的向西空间的分发模式低在西方高、在东方低在后者期间三个时期,在人的活动的空间重心表明一个变化。这些地点主要在等级的斜坡上被散布 15,与他们在春天和秋天时期(770 BC476 BC ) 期间从 75% 增加的比例 Qin 王朝(221 BC207 BC ) 到 93.75% 在 Qing DynastyModern 时期期间。地点举起的集中的分发变了从在春天和秋天 PeriodQin 王朝,和西方的汉(206 BC8 ) 期间分级 48 南部、北的王朝(420589 ) ,到在后者期间分级 14 三个时期。地点的数字从高举起的山和山,并且从高斜坡显示出一个变的趋势到低举起的平原到低斜坡。特别地,这些地点从中间、在上游的区域展出了移植的一个特殊潮湿的进化模式到下游的区域,与位于典型干旱区域的地点的迁居模式对比。学习也认为显著地,影响分发和文化地点的空间与时间的进化的因素是人的因素和自然因素。 | WANG Fang YANG Zhaoping LUAN Fuming XIONG Heigang SHI Hui WANG Zhaoguo ZHAO XingYou QIN Wenmin WU Wenjie LI Dong | 2015 | Journal of Geographical Sciences2015，25，9： | 5 |
| 12 | Scalable and fast fabrication of graphene integrated micro-supercapacitors with remarkable volumetric capacitance and flexibility through continuous centrifugal coating显示文摘Microscale electrochemical energy storage devices,e.g., micro-supercapacitors(MSCs),possessing tailored performance and diversified form factors of lightweight,miniaturization,flexibility and exceptional integration are highly necessary for the smart power sources-unitized electronics.Despite the great progress,the fabrication of MSCs combining high integration with high volumetric performance remains largely unsolved.Herein,we develop a simple,fast and scalable strategy to fabricate graphene based highly integrated MSCs by a new effective continuous centrifugal coating technique.Notably,the resulting highly conductive graphene films can act as not only patterned microelectrodes but also metal-free current collectors and interconnects,endowing modular MSCs with high integrity,remarkable flexibility,tailored voltage and capacitance output,and outstanding performance uniformity.More importantly,the strong centrifugal force and shear force generated in continuous centrifugal coating process lead to graphene films with high alignment,compactness and packing density,contributing to excellent volumetric capacitance of ~31.8 F cm^(-3) and volumetric energy density of ~2.8 mWh cm^(-3),exceeding most reported integrated MSCs.Therefore,our work paves a novel way for simple and scalable fabrication of integrated MSCs and offers promising opportunities as standalone microscale power sources for new-generation electronics. | Xiaoyu Shi Lijun Tian Sen Wang Pengchao Wen Ming Su Han Xiao Pratteek Das Feng Zhou Zhaoping Liu Chenglin Sun Zhong-Shuai Wu Xinhe Bao | 2021 | Journal of Energy Chemistry2021，30，1： | 3 |
| 13 | Alloying effects of the elements with a positive heat of mixing on the glass forming ability of Al-La-Ni amorphous alloys显示文摘The effects of Sn and Ga additions on the glass forming ability(GFA)of(Al86La5Ni9)100 xSnx(x=0,0.2,0.3,0.5,0.7,1 and 2at.%)and(Al86La5Ni9)100 xGax(x=0,0.2,0.5,1 and 1.5 at.%)alloys were systematically investigated.Unlike common microalloying methods,both Sn and Ga have a positive heat of mixing with the main component of Al.Our analysis confirmed that proper Sn addition can suppress the strong formation ofα-Al and enhance the GFA due to the positive heat of mixing between Sn and Al and the large difference in their atomic sizes.While the addition of Ga to the base alloy acted as the nucleation cites forα-Al and accelerated precipitation of theα-Al phase,thus deteriorating the GFA. | CHEN ZiPan GAO JingEn WU Yuan WANG Hui LIU XiongJun LU ZhaoPing | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，1： | 3 |
| 14 | Controlling COVID-19 Transmission due to Contaminated Imported Frozen Food and Food Packaging显示文摘BACKGROUND The emergence of the coronavirus disease 2019(COVID-19)has been sharply increasing with more than eighty million confirmed cases worldwide(1).It has been contained in China through stringent nonpharmaceutical interventions(2).A combination of strict border control and quarantine measures have effectively prevented the spread of the virus from infected travelers,but the risk of resurgence caused by other routes of transmission(fomite transmission)has been identified in a number of localized outbreaks(3-7). | Li Bai Yeru Wang Yibaina Wang Yongning Wu Ning Li Zhaoping Liu | 2021 | China CDC weekly2021，3，2： | 2 |
| 15 | Interpretable machine-learning strategy for soft-magnetic property and thermal stability in Fe-based metallic glasses显示文摘Fe-based metallic glasses(MGs)have been extensively investigated due to their unique properties,especially the outstanding soft-magnetic properties.However,conventional design of soft-magnetic Fe-based MGs is heavily relied on“trial and error”experiments,and thus difficult to balance the saturation flux density(Bs)and thermal stability due to the strong interplay between the glass formation and magnetic interaction.Herein,we report an eXtreme Gradient Boosting(XGBoost)machine-learning(ML)model for developing advanced Fe-based MGs with a decent combination of Bs and thermal stability. | Zhichao Lu Xin Chen Xiongjun Liu Deye Lin Yuan Wu Yibo Zhang Hui Wang Suihe Jiang Hongxiang Li Xianzhen Wang Zhaoping Lu | 2020 | npj Computational Materials2020，，1： | 2 |
| 16 | Self-supporting nanoporous Ni/metallic glass composites with hierarchically porous structure for efficient hydrogen evolution reaction显示文摘Searching for free-standing and cost-efficient hydrogen evolution reaction(HER)electrocatalysts with high efficiency and excellent durability remains a great challenge for the hydrogen-based energy industry.Here,we report fabrication of a unique hierarchically porous structure,i.e.,nanoporous Ni(NPN)/metallic glass(MG)composite,through surface dealloying of the specially designed Ni_(40)Zr_(40)Ti_(20)MG wire.This porous composite is composed of micrometer slits staggered with nanometer pores,which not only enlarges effective surface areas for the catalytic reaction,but also facilitates the release of H2 gas.As a result,the NPN/MG hybrid electrode exhibited the prominent HER performance with a low overpotential of 78 m V at 10 m A cm^(-2)and Tafel slope of 42.4 m V dec^(-1),along with outstanding stability in alkaline solutions.Outstanding catalytic properties,combining with their free-standing capability and cost efficiency,make the current composite electrode viable for HER applications. | Jing Wang Li You Zhibin Li Xiongjun Liu Rui Li Qing Du Xianzhen Wang Hui Wang Yuan Wu Suihe Jiang Zhaoping Lu | 2021 | Journal of Materials Science & Technology2021，，14： | 2 |
| 17 | Thermal Characteristics of Hyperaccumulator and Fate of Heavy Metals during Thermal Treatment of Sedum plumbizincicola显示文摘 | Daoxu Zhong Zhaoping Zhong Longhua Wu Hui Xue Zuwei Song Yongming Luo | 2015 | International Journal of Phytoremediation2015，，8： | 1 |
| 18 | The pathological examination of placenta of the with antiphospholipid antibody positive显示文摘 | Huang shuguang Wu guifang Wang zhaoping | 1998 | Chin J Obstet Gynecol1998，33，： | 1 |
| 19 | High entropy ultra-high temperature ceramic thermal insulator(Zr_(1/5)Hf_(1/5)Nb_(1/5)Ta_(1/5)Ti_(1/5))C with controlled microstructure and outstanding properties显示文摘Due to advancements of hypersonic vehicles,ultra-high temperature thermal insulation materials are urgently requested to shield harsh environment with superhigh heat flux.Toward this target,ultra-high temperature ceramics(UHTCs)are the only choice due to their excellent capability at ultra-high temperatures.We herein report a novel highly porous high entropy(Zr_(1/5)Hf_(1/5)Nb_(1/5)Ta_(1/5)Ti_(1/5))C fabricated by foam-gelcasting-freeze drying technology combined with in-situ pressureless reaction sintering.The porous(Zr_(1/5)Hf_(1/5)Nb_(1/5)Ta_(1/5)Ti_(1/5))C exhibited ultra-high porosity of 86.4%-95.9%,as well as high strength and low thermal conductivity of 0.70–11.77 MPa and 0.164–0.239 W/(m·K),respectively.Specifically,Si C sintering additive only locates at the pit of the surface of sintering neck between UHTC grains,and there is no secondary phase or intergranular film at the grain boundary.Besides,the oxidation resistance of high entropy carbide powders is greatly improved compared with that of the mixed five carbide powders.This work clearly highlights the merits of highly porous high entropy(Zr_(1/5)Hf_(1/5)Nb_(1/5)Ta_(1/5)Ti_(1/5))C as an ultra-high temperature thermal insulation material. | Zhuojie Shao Zhen Wu Luchao Sun Xianpeng Liang Zhaoping Luo Haikun Chen Junning Li Jingyang Wang | 2022 | Journal of Materials Science & Technology2022，，24： | 1 |
| 20 | Desulfurization in Reducing Atmosphere and AmmoniaInjection Denitrification in a Coal-Fired Fluidized Bed Combustor with Fly-Ash Recycle显示文摘With the rising of IGCC and the second generation PFBC-CC, and with the development of tech-nology of staged combustion to lower emission of NOx, the desulfurization efficiency under reducingatmosphere is raised. In this paper, with the application of the fly-ash recycle and tworstage combus-tion technologies in a fluidized bed combustor, the desulfurization test under reducing atmosphere isdescribed. Meanwllile, ammonia injection test was also conducted. Results show that desulfurizationunder reducing atmosphere has higher efficiency, and ammonia injection denitrification effect is veryperfect. | Zhong Zhaoping Lan Jixiang Han Yongsheng Wu Xin(Thermoenergy Engineering Research Institute, Southeast University, Nanjing 210096, China)Zheng Haiyun(Nanjing Institute of Environmental Science, National Environmental Protection Agency,Nanjing 210042, Chin | 1997 | Journal of Thermal Science1997，6，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员