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| 1 | Fabrication of aluminum matrix composite reinforced with carbon nanotubes显示文摘1.0wt.% carbon nanotube (CNT) reinforced 2024Al matrix composite was fabricated by cold isostatic press and subsequent hot extrusion techniques. The mechanical properties of the composite were measured by a tensile test. Mean-while,the fracture surfaces were examined using field emission scanning electron microscopy. The experimental results show that CNTs are dispersed homogeneously in the composite and that the interfaces of the Al matrix and the CNT bond well. Although the tensile strength and the Young’s modulus of the composite are enhanced markedly,the elongation does not decrease when compared with the matrix material fabricated under the same process. The reasons for the increments may be the extraordinary mechanical properties of CNTs,and the bridging and pulling-out role of CNTs in the Al matrix composite. | DENG Chunfeng ZHANG Xuexi MA Yanxia WANG Dezun | 2007 | Rare Metals2007，26，5： | 5 |
| 2 | Dispersion of multiwalled carbon nanotubes in aluminum powders显示文摘Multiwalled carbon nanotubes (MWNTs) were treated with the reflux within the concentrated nitric acid for 0-25 h to purify and disperse the tangled MWNTs. The effect of reflux time on the morphology and the weight loss of MWNTs were investigated. Meanwhile,the dispersion of MWNTs with 0-2.0 wt.% in 2024Al powders using mechanical stirring with an assisting ultrasonic shaker in ethanol was also studied. The results show that the reflux time markedly affects the morphology of MWNTs. The weight loss of MWNTs increases as the reflux time increases. When the content of MWNTs is less than 1.0 wt.%,MWNTs can uniformly distribute on the surface of 2024Al powders; however,when the content of MWNTs is 2.0 wt.%,MWNTs entangle with each other on the surface of 2024Al powders. | Deng Chunfeng Zhang Peng Ma Yanxia Zhang Xuexi Wang Dezun | 2009 | Rare Metals2009，28，2： | 3 |
| 3 | Separation and Anti-Hantaan Virus Activity of Extracts from Alternanthera philoxcroides in vitro and in vivo显示文摘A water-soluble substance was extracted from the Chi-nese herb, Alternanthera philoxcroides with hot water and alcohol. Aliquots of this initial extract were further fractionated by treat-ment with ether, ethyl acetate and alcohol respectively. The four extracts were assayed for anti-viral activity against three serum, Hantaan virus 114 (HV114),HV435 and A9 strains. Results show that the four extracts are capable of inhibiting Hantaan virus propagation, of which extract No.1 has the best efficiency. The three dosage of extract No.1, which are used upon three Hantaan virus serum IC50, are 153, 157, 154 μ?/mL. New-born mice were made to be infected with HV114 and then fed in vivo with extract No.1 on the 3rd, 10th and 14th days after being infected by the virus. The treatment continued for 8 days with a dosage of 2.5 g/kg. Result shows that survival rates of mice were 75%, 50% and 0, respectively. The median time to death (MTDs) of the three groups were 37, 30, 23 days. | LIU Yingjuan YANG Zhanqiu DENG Haiying XIAO Hong QU Chunfeng | 2007 | Wuhan University Journal of Natural Sciences2007，12，6： | 2 |
| 4 | Chemical stability of carbon nanotubes in the 2024A1 matrix显示文摘 | Deng Chunfeng Zhang Xuexi Wang Dezun | 2007 | Mater Lett2007，61，3： | 1 |
| 5 | Space Morphology Characteristics and Heritage Countermeasures of Dong Villages in Northern Guangxi 显示文摘 | Xiaohong Shi Chunfeng Deng Yaozhi Haang | 2012 | Applied Mechanics and Materials2012，，174177： | 1 |
| 6 | Accumulation, transportation, and distribution of tetracycline and cadmium in rice显示文摘Co-exposure to heavy metal and antibiotic pollution might result in complexation and synergistic interactions,affecting rice growth and further exacerbating pollutant enrichment.Therefore,our study sought to clarify the influence of different Tetracycline (TC) and Cadmium(Cd) concentration ratios (both alone and combined) on rice growth,pollutant accumulation,and transportation during the tillering stage in hydroponic system.Surprisingly,our findings indicated that the interaction between TC and Cd could alleviate the toxic effects of TC/Cd on aerial rice structures and decrease pollutant burdens during root elongation.In contrast,TC and Cd synergistically promoted the accumulation of TC/Cd in rice roots.However,their interaction increased the accumulation of TC in roots while decreasing the accumulation of Cd when the toxicant doses increased.The strong affinity of rice to Cd promoted its upward transport from the roots,whereas the toxic effects of TC reduced TC transport.Therefore,the combined toxicity of the two pollutants inhibited their upward transport.Additionally,a low concentration of TC promoted the accumulation of Cd in rice mainly in the root tip.Furthermore,a certain dose of TC promoted the upward migration of Cd from the root tip.Laser ablation-inductively coupled plasma mass spectrometry demonstrated that Cd mainly accumulated in the epidermis and stele of the root,whereas Fe mainly accumulated in the epidermis,which inhibited the absorption and accumulation of Cd by the rice roots through the generation of a Fe plaque.Our findings thus provide insights into the effects of TC and Cd co-exposure on rice growth. | Chunfeng He Jini Zhou Chen Yang Zhiyi Song Junheng He Ziqing Huang Yurong Deng Jinling Wang Yu Xiong Zhi Dang | 2023 | Journal of Environmental Sciences2023，，4： | 1 |
| 7 | Numerical simulation of magnetic flux and force in electromagnetic forming with attractive force 显示文摘 | Deng Jianghua Li Chunfeng Zhao Zhiheng | 2007 | Journal of Materials Processing Technology2007，184，： | 1 |
| 8 | Correlation between sarcopenia and vital capacity in elderly people in Nanning显示文摘To investigate therelationship between sarcopenia and vital capacity(VC)in older adults in Nanning by investigating their humanbody composition and VC.A total of 355 middle-aged and elderly people(male 86,female 269)in Nanning wererandomly selected,their VC and body composition were measured by using the vital capacity tester and bodycomposition analyzer.①VC,BMI,skeletal muscle mass index(SMI)of male were higher than those of female,but the fat mass(FM)and body fat rate(BF%)were lower than that of female.②The VC in the male sarcopeniagroup was lower than that of the control group.③BMI and systemic muscle mass(SMM)in the male and femalesarcopenia group were lower than those in the control group,and the FM and trunk muscle mass(TMM)in thefemale group were lower than those in the control group. | Wu Siyi Cheng Chunfeng Liu Qi Jiang Jiayang He Kuntu Chen Xingcai Xu Lin Deng Qiongying | 2021 | 解剖学杂志2021，44，S01： | 0 |
| 9 | Effect of deformation temperature on the hot compressive behavior of metal matrix composites with misaligned whiskers显示文摘A multi-inclusion cell model is used to investigate the effect of deformation temperature and whisker rotation on the hot compressive behavior of metal matrix composites with misaligned whiskers. Numerical results show that deformation temperature influences the work-hardening behavior of the matrix and the rotation behavior of the whiskers. With increasing temperature, the work hardening rate of the matrix decreases, but the whisker rotation angle increases. Both whisker rotation and the increase of deformation temperature can induce reductions in the load supported by whisker and the load transferred from matrix to whisker. Additionally, it is found that during large strain deformation at higher temperatures, the enhancing of deformation temperature can reduce the effect of whisker rotation. Meanwhile, the stress-strain behavior of the composite is rather sensitive to deformation temperature. At a relatively lower temperature (150°C), the composite exhibits work hardening due to the matrix work hardening, but at relatively higher temperatures (300°C and above), the composite shows strain softening due to whisker rotation. It is also found that during hot compression at higher temperatures, the softening rate of the composite decreases with increasing temperature. The predicted stress-strain behavior of the composite is approximately in agreement with the experimental results. | LI Aibin MENG Qingyuan GENG Lin DENG Chunfeng YAN Yiwu | 2007 | Rare Metals2007，26，2： | 0 |
| 10 | Integrating thin wall into block:A new scanning strategy for laser powder bed fusion of dense tungsten显示文摘Due to a combination of outstanding properties including high melting point,high density,low thermal expansion coefficient,low saturated vapor pressure and excellent thermal conductivity,tungsten(W)parts have been widely used as electrodes,heating elements,anti-scatter grids for Computed Tomography(CT)equipment,rocket nozzles and divertor materials for nuclear fusion[1]. | Zhengang Xiong Ji Zou Zhaoyang Deng Jinhan Chen Wei Liu Yuchi Fan Minshi Wang Xiaoqing Zhao Chunfeng Yu Dongdong Dong Wenyou Ma Weimin Wang Zhengyi Fu | 2022 | Journal of Materials Science & Technology2022，，25： | 0 |
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