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| 1 | Effects of deformation twins on microstructure evolution,mechanical properties and corrosion behaviors in magnesium alloys-A review显示文摘Due to lattice reorientation,grain segmentation,induced recrystallization,twins play a very important role in regulating texture,refining grains,improving mechanical properties and corrosion resistance,and has received more extensive attention.Numerous studies have shown that{10-12}<10-11>tensile twins(TTWs)are easily activated in large quantities due to the lower critical resolve shear stresses(CRSS).Introduction of TTWs under uniaxial compression improved the strength,ductility,and formability of magnesium(Mg)alloys.Moreover,TTWs produced by multi-directional impact forging(MDIF)can optimize the microstructure by dividing grains and promoting recrystallization,resulting in significant improvement of mechanical properties.Although{10-11}<10-12>compressive twins(CTWs)and{10-11}-{10-12}double twins(DTWs)can promote dynamic recrystallization(DRX),they are also favorable nucleation sites for cracks.In addition,the type and volume fraction of twins can affect the corrosion resistance,and they also play different roles in the corrosion process of different Mg alloys.Twins have shown great potential for improving structure and properties,but a comprehensive and critical discussion of twins in Mg alloys is still lacking.Therefore,based on previous studies,this article reviews the common types and variants of twins in Mg alloys,influencing factors,and their effects on the microstructure,mechanical properties and corrosion resistance.In addition,some interesting ideas are being proposed for further research. | Lianhui Li Wenhong Liu Fugang Qi Di Wu Zhiqiang Zhang | 2022 | Journal of Magnesium and Alloys2022,10,9: | 5 |
| 2 | Large Chip Production Mechanism under the Extreme Load Cutting Conditions显示文摘There has existed a great deal of theory researches in term of chip production and chip breaking characteristics under conventional cutting and high speed cutting conditions,however,there isn't sufficient research on chip formation mechanism as well as its influence on cutting state regarding large workpieces under extreme load cutting.This paper presents a model of large saw-tooth chip through applying finite element simulation method,which gives a profound analysis about the characteristics of the extreme load cutting as well as morphology and removal of the large chip.In the meantime,a calculation formula that gives a quantitative description of the saw-tooth level regarding the large chip is established on the basis of cutting experiments on high temperature and high strength steel2.25Cr-lMo-0.25V.The cutting experiments are carried out by using the scanning electron microscope and super depth of field electron microscope to measure and calculate the large chip produced under different cutting parameters,which can verify the validity of the established model.The calculating results show that the large saw-toothed chip is produced under the squeezing action between workpiece and cutting tools.In the meanwhile,the chip develops a hardened layer where contacts the cutting tool and the saw-tooth of the chip tend to form in transverse direction.This research creates the theoretical model for large chip and performs the cutting experiments under the extreme load cutting condition,as well as analyzes the production mechanism of the large chip in the macro and micro conditions.Therefore,the proposed research could provide theoretical guidance and technical support in improving productivity and cutting technology research. | LIU Xianli HE Genghuang YAN Fugang CHENG Yaonan LIU Li | 2015 | Chinese Journal of Mechanical Engineering2015,28,2: | 5 |
| 3 | Investigation on microstructures and mechanical properties of Mg-6Zn-0.5Ce-xMn(x=0 and 1)wrought magnesium alloys显示文摘The microstructure evolution and mechanical properties of Mg–6Zn–0.5Ce–xMn(x=0 and 1 wt.%)wrought magnesium alloys were researched,and the morphologies and role of Mn element in the experimental alloys were analyzed.The research shows that all of Mn elements form theα-Mn pure phases,which do not participate in the formation of other phases,such as theτ-phases.The mechanical properties of Mn-containing alloys in as-extruded and aged states are superior to Mn-free alloys.During the hot extrusion process,the dispersed fineα-Mn particle phase hinders the migration of grain boundaries and inhibits dynamic recrystallization,which mainly takes effect of grain refining and dispersion hardening.During the aging treatments,the dispersed fineα-Mn particle phase not only hinders the growth of the solution-treated grains,but also becomes the nucleation cores ofβ1 rod-like precipitate phase,which is conducive to increasing the nucleation rate of the precipitate phase.For the aged alloy,the Mn addition mainly takes effect of grain refining and promoting aging strengthening. | Caihong Hou Hongshuai Cao Fugang Qi Qing Wang Lianhui Li Nie Zhao Dingfei Zhang Xiaoping Ouyang | 2022 | Journal of Magnesium and Alloys2022,10,4: | 3 |
| 4 | Determination of tetracycline in milk by using nucleotide/lanthanide coordination polymer-based ternary complex显示文摘 | Hongliang Tan Chanjiao Ma Yonghai Song Fugang Xu Shouhui Chen Li Wang | 2013 | Biosensors and Bioelectronics2013,,: | 1 |
| 5 | Context-aware local abnormality detection in crowded scene显示文摘In this paper, we propose a novel algorithm by jointly modeling motion and context information targeting at detecting abnormal events in crowded scenes. In our algorithm, context pattern information,extracted through volume local binary patterns computation on three orthogonal planes(LBP-TOP) between local target areas with surrounding areas, is explicitly taken into consideration for localizing abnormality. To capture motion information, a novel feature descriptor named Multi-scale Histogram of Frequency Coefficient is explored by taking Fourier Transform on the extracted dense trajectories. For detection of abnormality, sparse reconstruction cost from a learned event dictionary is adopted to classify local normal and abnormal events.Experiments conducted on three benchmark datasets show superior performance to many related state-of-the-art methods. | ZHU XiaoBin JIN Xin ZHANG XiaoYu LI ChangSheng HE FuGang WANG Lei | 2015 | Science China(Information Sciences)2015,58,5: | 1 |
| 6 | Amplification effects of magnetic field on hydroxylamine-promoted ZVI/H_(2)O_(2) near-neutral Fenton like system显示文摘This study has demonstrated an interesting amplification effect of magnetic field (MF) on the hydroxylamine (HA)-promoted zero valent iron (ZVI)/H_(2)O_(2) Fenton-like system. Sulfamethoxazole (SMX) could be efficiently degraded at near neutral pH. Conditional parameters affecting the SMX degradation in the ZVI/H_(2)O_(2)/HA/MF system, e.g., pH and the dosages of ZVI, HA and H_(2)O_(2), were investigated. Unlike the acid-favorable ZVI/H_(2)O_(2) and ZVI/H_(2)O_(2)/HA systems, the MF-assisted system exhibited good performances even at pH up to 6.0 and highest degradation rate at pH of 5.0. ^(·)OH was still identified as the responsible oxidant. A mechanism involving the MF-enhanced heterogeneous-homogeneous iron cycle was proposed in the near-neutral ZVI/H_(2)O_(2)/HA system. Without MF, HA-induced reductive dissolution of the surface iron oxides occurred and thus leaded to homogeneous Fenton reactions. After the introduction of MF, the gradient magnetic field formed on the ZVI particles would induce the generation of concentration cells of Fe(II) and local corrosion of iron. Large amounts of aqueous and bounded Fe(II) catalyzed H_(2)O_(2) to efficiently produce ^(·)OH, while HA maintained the surface and bulk cycles of Fe(II)/Fe(III). The result of study is expected to provide a green, energy-free method in improving the effectiveness of ZVI-based Fenton-like technologies at weak-acidic circumstances. | Wei Xiang Mingjie Huang Xiaohui Wu Fugang Zhang Dan Li Tao Zhou | 2022 | Chinese Chemical Letters2022,33,3: | 1 |
| 7 | Determination of tetracycline in milk by using nucleotide/lanthanide coordination polymer-based ternary complex显示文摘 | Hongliang Tan Chanjiao Ma Yonghai Song Fugang Xu Shouhui Chen Li Wang | 2013 | Biosensors and Bioelectronics2013,,: | 1 |
| 8 | Ultrafast O_(2) activation by copper oxide for 2,4-dichlorophenol degradation:The size-dependent surface reactivity显示文摘This study demonstrated interesting ultrafast activation of molecular O_(2) by copper oxide(CuO)particles and very rapid elimination of aqueous 2,4-dichlo rophenol(2,4-DCP)within reaction time of 30 s.Electron paramagnetic resonance(EPR)characterization indicated that·OH,Cu^(3+),^1 O_(2) and O_(2)^·-were generated in the CuO/O_(2) systems,wherein O_(2)^·-would be the main reactive species responsible for 2,4-DCP degradation.It was further found that the catalytic ability of CuO for O_(2) activation was highly size dependent and nano-CuO was far reactive than micro-CuO.H2 temperature-programmed reduction(H2-TPR),X-ray photoelectron spectroscopy(XPS)and vibrating sample magnetometer(VSM)analyses revealed that both the quantity and the reactivity of the surface reaction sites(surface Cu+and O_(2))could determine the catalytic ability of CuO affecting efficient Cu^(+)-based molecular oxygen activation.Moreover,the O_(2) activation ability of CuO would depend on not only the dimension,but also crystalline factors,for example,the exposed facets. | Mingjie Huang Wei Xiang Chen Wang Tao Zhou Juan Mao Xiaohui Wu Fugang Zhang Dan Li Xiejuan Lu | 2020 | Chinese Chemical Letters2020,31,10: | 1 |
| 9 | Study on precision grinding technique of PCD tool's cutting edge显示文摘 | LIU Xianli LI Y YAN Fugang | 2006 | Key Engineering Materials2006,,: | 1 |
| 10 | Ni- trogen-rich salts based on the energetic anion:a promising design in the development of new energetic materials显示文摘 | Li Fugang Bi Yangang Zhao Wenyuan | 2015 | Inorganic Chemistry2015,54,4: | 1 |
| 11 | Lanthanide-functionalized silver nanoparticles for detection of an anthrax biomarker and test paper fabrication显示文摘 | Hongliang Tan Qian Li Chanjiao Ma Yonghai Song Fugang Xu Shouhui Chen Li Wang | 2014 | Journal of Nanoparticle Research2014,,1: | 1 |
| 12 | A New Approach for Structural Optimization with Application to Wind Turbine Tower显示文摘This work takes the bionic bamboo tower(BBT)of 2 MW wind turbine as the target,and the nondominated sorting genetic algorithm(NSGA-II)is utilized to optimize its structural parameters.Specifically,the objective functions are deformation and mass.Based on the correlation analysis,the target optimization parameters were determined.Furthermore,the Kriging model of the BBT was established through the Latin Hypercube SamplingDesign(LHSD).Finally,the BBT structure is optimized withmultiple objectives under the constraints of strength,natural frequency,and size.The comparison shows that the optimized BBT has an advantage in the Design Load Case(DLC).This advantage is reflected in the fact that the overall stability of the BBT has increased by 2.45%,while the displacement of the BBT has decreased by 0.77%.In addition,the mass of the tower is decreased by 1.49%.Correspondingly,the steel consumption of each BBT will be reduced by 2789 Kg.This work provides a scientific basis for the structural design of the tower in service. | Fugang Dong Yuqiao Zheng Hao Li Zhengwen He | 2022 | Energy Engineering2022,119,3: | 0 |
| 13 | Quantum uncertainty relations of two generalized quantum relative entropies of coherence显示文摘In this paper, we consider the quantum uncertainty relations of two generalized relative entropies of coherence based on two measurement bases. First, we give quantum uncertainty relations for pure states in a d-dimensional quantum system by making use of the majorization technique; these uncertainty relations are then generalized to mixed states. We find that the lower bounds are always nonnegative for pure states but may be negative for some mixed states. Second, the quantum uncertainty relations for single qubit states are obtained by the analytical method. We show that the lower bounds obtained by this technique are always positive for single qubit states. Third, the lower bounds obtained by the two methods described above are compared for single qubit states. | FuGang Zhang YongMing Li | 2018 | Science China(Physics,Mechanics & Astronomy)2018,61,8: | 0 |
| 14 | A Numerical Simulation Study of Temperature and Pressure Effects on the Breakthrough Pressure of CO_(2)in Unsaturated Low-permeability Rock Core显示文摘Gas breakthrough pressure is a key parameter to evaluate the sealing capacity of caprock,and it also plays important roles in safety and capacity of CO_(2)geological storage.Based on the published experimental results,we present numerical simulations on CO_(2)breakthrough pressure in unsaturated low-permeability rock under 9 multiple P-T conditions(which can keep CO_(2)in gaseous,liquid and supercritical states)and thus,a numerical method which can be used to accurately predict CO_(2)breakthrough pressure on rock-core scale is proposed.The simulation results show that CO_(2)breakthrough pressure and breakthrough time are exponential correlated with P-T conditions.Meanwhile,pressure has stronger effects on experimental results than that of temperature.Moreover,we performed sensitivity studies on the pore distribution indexλ(0.6,0.7,0.8,and 0.9)in van Genuchten-Muale model.Results show that with the increase ofλ,CO_(2)breakthrough pressure and breakthrough time both show decreasing trends.In other words,the larger the value ofλis,the better the permeability of the caprock is,and the worse the CO_(2)sealing capacity is.The numerical method established in this study can provide an important reference for the prediction of gas breakthrough pressure on rock-core scale and for related numerical studies. | HU Zhikai LI Yi LI Qi DIAO Yujie MA Xin LIU Hejuan FENG Guanhong WANG Fugang YU Qingchun | 2023 | Acta Geologica Sinica(English Edition)2023,97,3: | 0 |
| 15 | New insight in the O_(2) activation by nano Fe/Cu bimetals:The synergistic role of Cu(0) and Fe(Ⅱ)显示文摘This study demonstrated that as-synthesized nano Fe/Cu bimetals could achieve significant enhancement in the degradation of diclofenac(DCF),as compared to much slow removal of DCF by Cu(Ⅱ) or zero valent iron nanoparticles(nZVI),respectively.Further observations on the evolution of O_(2) activation process by nano Fe/Cu bimetals was conducted stretching to the preparation phase(started by nZVI/Cu2+).Interesting breakpoints we re observed with obvious sudden increase in the DCF degradation efficiency and decrease in solution pH,as the original nZVI just consumed up to Fe(Ⅱ) and Cu(II) appeared again.It suggested that the four-electrons reaction of O_(2) and Cu-deposited nZVI would occur to generate water prior to the breakpoints,while Cu(0) and Fe(Ⅱ) would play most important role in activation of O_(2) afterwards.Through the electron spin resonance(ESR) analysis and quenching experiments.·OH was identified as the responsible reactive species.Further time-dependent quantifications in the cases of Cu(0)/Fe(Ⅱ) systems we re carried out.It was found that the ’OH accumulation was positively and linearly correlated with nCu dose,Fe(Ⅱ) consumption,and Fe(II) dose,respectively.Since either Cu(O) or Fe(Ⅱ)would be inefficient in activating oxygen to produce ·OH,a stage-evolution mechanism of O_(2) activated by nano Fe/Cu bimetals was proposed involving:(a) Rapid consumption of Fe(0) and release of Fe(Ⅱ) based on the Cu-Fe galvanic corrosion,(b) adsorption and transformation of O_(2) to O_(2)2 at the nCu surface,and(c) Fe(Ⅱ)-catalyzed activation of the adsorbed O_(2)2 to ·OH. | Wei Xiang Mingjie Huang Yifan Wang Xiaohui Wu Fugang Zhang Dan Li Tao Zhou | 2020 | Chinese Chemical Letters2020,31,10: | 0 |
| 16 | A novel strategy for identifying biomarker in serum of patient with COVID-19 using immune complex显示文摘Dear Editor,COVID-19(Coronavirus Disease 2019)is a disease caused by the single-stranded sense RNA virus SARS-CoV-2(severe acute respiratory syndrome coronavirus 2),which has caused a global public health crisis.1 However,so far no effective serum marker has been found as a biomarker for COVID-19 diagnosis,except that viral nucleic acid detection is an effective evidence of SARS-CoV-2 infection. | Fugang Duan Yifan Wang Taoyu Chen Zhu Zhu Meng Yu Hui Dai Shangen Zheng Yinying Lu Tingting Li Xiaoyan Qiu | 2022 | Signal Transduction and Targeted Therapy2022,7,3: | 0 |
| 17 | EFFECT OF INTERGRANULAR CARBIDES ON CREEP RUPTURE PROPERTIES OF Fe-15Cr-25Ni ALLOY显示文摘The intergranular carbides may significantly increase rupture life and ductility of theFe-15Cr-25Ni alloy.This seems due to the grain boundary sliding and diffusion hindered byprecipitation of intergranular carbides,so the nucleation and growth rate of cracks or cavitiesare reduced. | LI Pei’en Shanghai Jiaotong University,Shanghai,ChinaYE Baorui ZHANG Junshan WANG Fugang JIN Junze Dalian University of Technology,Dalian,China | 1992 | Acta Metallurgica Sinica(English Letters)1992,5,4: | 0 |
| 18 | Design a thieno[3,2-b]thiophene bridged nonfullerene acceptor to increase open-circuit voltage,short-circuit current-density and fill factor via the ternary strategy显示文摘In this study,we report a new small molecule acceptor(named TT-4 F)which uses 3,6-dimethoxylthieno[3,2-b]thiophene(TT)as theπ-bridge.Addition of 0.05 weight ratio amount of TT-4 F into the host binary blend of PTB7-Th:IEICO-4 F,resulting in a ternary blend in a weight ratio of 1:1:0.05,enables increased open-circuit voltage(Voc),short-circuit curre nt-density(Jsc),and fill-factor(FF)at the same time.Finally,12.1%efficiency is obtained.Compared to the 3-(2-ethylhexyloxylthiophene)bridge on IEICO-4 F,the additional methoxyl group on the TT-6 position is involved in the lowest unoccupied molecular orbital(LUMO)and the largerπ-system on TT increases the electron-donating nature,both of which help to raise the LUMO level,one reason of the increased Voc.Upon addition of 0.05 TT-4 F,the hole mobility is increased,the monomolecular recombination is reduced,and the charge dissociation and collection is enhanced.All of these contribute to the increased Jsc and FF. | Xiaofang Li Kun Li Dan Su Fugang Shen Shuying Huo Hongbing Fu Chuanlang Zhan | 2020 | Chinese Chemical Letters2020,31,5: | 0 |
| 19 | Dendrimer/inorganic nanomaterial composites: Tailoring preparation,properties,functions,and applications of inorganic nanomaterials with dendritic architectures显示文摘Inorganic nanomaterials have a variety of fascinating properties and a wide range of promising applications.However,they often suffer from instability and poor processibility.To solve it,dendrimers,a special family of macromolecules having a unique three-dimensional architecture,provide one of the excellent solutions.In addition,the site-selective functionalization of the specific elements in the dendritic structure endows the nanohybrid system new functions and applications.Inspired by such ideas,a variety of dendrimer/inorganic nanomaterial composites have been designed and exploited.This review article selects a number of representative examples,and illustrates their preparation,characterization,properties,and applications.The influence and the unique features that originate from the introduced dendritic structures are particularly discussed. | ZHAO FuGang LI WeiShi | 2011 | Science China Chemistry2011,54,2: | 0 |