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| 1 | Combined effect of pre-aging and Ag/Cu addition on the natural aging and bake hardening in Al-Mg-Si alloys显示文摘The combined effect of pre-aging and Ag/Cu addition on natural aging and bake hardening in Al-Mg-Si alloys were studied by Vickers microhardness measurement, tensile test, atom probe tomography and transmission electron microscopy. The results showed that Ag and/or Cu addition could further enhance the positive effect of pre-aging on bake hardening for Al-Mg-Si alloys. Although the pre-aged alloys with individual Ag/Cu addition had higher paint bake hardness, the hardness in T4 P temper was relatively high due to effectively forming of Cluster(2) during pre-aging. While the pre-aged Ag-Cu-added alloy had low T4 P temper hardness and higher bake hardening response. The strong interaction energies between Ag/Cu atoms and Mg atoms were responsible for the facilitated clustering and precipitation processes. After paint bake treatment, most of Ag atoms accumulated preferentially at β″/α-Al matrix interface, while Cu atoms entered into the interior of β″resulting in disordered structure within the precipitate. | Yaoyao Weng Zhihong Jia Lipeng Ding Manping Liu Xiaozhi Wu Qing Liu | 2018 | Progress in Natural Science:Materials International2018，28，3： | 4 |
| 2 | Effects on Growth Performance and Feed Digestibility of Hainan Black Pigs by Adding Lysine in Low Protein Diet显示文摘[Objective] The paper was to study the effects on growth performance and feed digestibility of Hainan black pigs by adding lysine in low protein diet.[Method] A total of 36 Hainan black pigs with the body weight of(46.34 ±3.06) kg were randomly divided into three groups:control group(protein level 15%,lysine level 0.83%),experimental group I(protein level 13%,0.83%),and experimental group II(protein level 13%,lysine level 1.03),each group had three replicates of four pigs.The trial lasted 35 d.[Result] The growth performance of Hainan black pig in group II had no significant difference with that in control group(P>0.05).The apparent digestibility of crude protein and phosphorus of Hainan black pigs in Group II increased significantly(P<0.05),which were increased by 10.08% and 11.85% respectively compared to the control group;the apparent digestibility of calcium was increased,but the difference was not significant(P>0.05).[Conclusion] It will not reduce the growth performance of Hainan black pig when the protein level of diet is reduced by 2% and the lysine level is increased to 1.03%.It is recommended that the diet can be used in the production of Hainan black pig. | Wei Limin Liu Quanwei Sun Ruiping Zheng Xinli Wang Feng Tan Shuyi Huang Lili Xing Manping | 2018 | Animal Husbandry and Feed Science2018，10，2： | 4 |
| 3 | Effect of Pelleted Total Mixed Ration on Production Performance and Serum Biochemical Index of Growing Hainan Black Goats显示文摘[Objective] The paper was to investigate effects of pelleted total mixed ration on production performance and serum biochemical index of growing Hainan black goats.[Method] Twenty-four growing Hainan black goats with the same genetic backgrounds and similar initial weight of(10.05±0.049) kg were randomly assigned into two treatments, and supplied with Juncao + concentrate(control group), pelleted total mixed ration(experimental group), respectively. The trial lasted 50 d.[Result] The final weight, daily gain and feed intake of experimental group were significantly higher than those of control group(P<0.05), but the feed/gain ratio of experimental group was markedly lower than that of control group(P<0.05). Compared with the control group, the gross profit of experimental group significantly increased( P <0.05).[Conclusion] Pelleted total mixed ration led to better production performance of growing Hainan black goat. | Liu Quanwei Wang Feng Wei Limin Huang Lili Sun Ruiping Xing Manping Zheng Xinli | 2019 | Animal Husbandry and Feed Science2019，11，1： | 4 |
| 4 | Effects of Dietary Crude Fiber Levels on Growth Performance and Serum Biochemical Index of Dingan Geese Aged from 35 to 70 Days显示文摘[Objective] The study was carried out to investigate the effects of dietary crude fiber on growth performance and serum biochemical in-dex of Dingan geese aged from 35 to 70 days.[Method] A total of 120 Dingan geese on day 28 with the same genetic background and similar initial weight(1 384.83.73±0.76 g) were randomly assigned into 3 groups, with 4 replicates per group and 10 geese per replicate. Geese were fed the diets containing 4.29%, 5.29% and 6.29 % crude fiber, respectively. The experiment lasted 35 d.[Result] Final weight and daily gain of 5.29 %CF group were significantly higher than those of 6.29 % CF group(P<0.05);Feed intake was markedly higher than those of 4.29% and 6.29 % CF groups(P<0.05);Feed gain ratio was significantly lower than that of 6.29 % CF group(P<0.05). Compared with 4.29% and 6.29 % CF groups, serum albumin concentrations of 5.29 % CF group increased significantly(P<0.05), while serum total protein and globin contents were higher(P>0.05), but serum uric acid level was lower(P>0.05).[Conclusion] 5.29 % crude fiber could lead to higher growth performance of Dingan geese. | Liu Quanwei Wang Feng Wei Limin Lin Dajie Xing Manping Yang Shaoxiong Sun Ruiping Ye Baoguo | 2019 | Animal Husbandry and Feed Science2019，11，1： | 3 |
| 5 | Microstructure,mechanical properties and wear resistance of an Al-Mg-Si alloy produced by equal channel angular pressing显示文摘Microstructure,mechanical properties and wear resistance in an ultrafine grained Al-Mg-Si alloy fabricated utilizing a combination of equal channel angular pressing(ECAP)and dynamic aging were investigated in this paper.The results indicated that the grain size of the ECAP alloy was significantly refined,i.e,to^239 nm after three ECAP passes.Meanwhile,the yield and tensile strength of the ECAPed material reached 340 MPa and 445 MPa,respectively,while maintaining a significant uniform elongation of 14%.Wear resistance results de-monstrated that the wear rate,wear depth and width of the ECAPed material decreased in comparison with the solution.treated(SST)and peak aged(T6)conditions under a load range of 5-25 N.The adhesive wear that occurs in the undeformed specimens at 10 N does not appear in the ECAPed specimen at the same load,in-dicating that the ECAPed specimen delay the appearance of more serious wear mechanisms under certain loads.The cooperative interaction of high density nano-scaleβ'precipitates and dislocations resulted in a combination of super-high strength and good work hardening ability which suppressed the extension of cracks between the friction layer and the plastic deformation zone.As a consequence,the combination of ECAP and dynamic aging brings a significant improvement for antifriction performance of the 6061 aluminum alloy. | Manping Liu Jian Chen Yaojun Lin Zhoulei Xue Hans J.Roven Pal C.Skaret | 2020 | Progress in Natural Science:Materials International2020，30，4： | 2 |
| 6 | Slaughtering Performance and Meat Quality of Hainan Black Goat and Its Hybrid Offsprings with Nubian Black Goat显示文摘In order to compare the slaughter performance and meat quality of Hainan black goats and hybrid offsprings of Nubian Black Goat and Hainan Black Goat, six 7-month-old Hainan black goats and six hybrid offsprings were selected to determine slaughter performance and muscle quality. The results showed that hybridization of Nubian black goat and Hainan black goat significantly improved the production performance and slaughter performance of hybrid offsprings (P>0.05). The meat quality of F1 hybrid black goat had no significant difference with that of Hainan black goat except for the hardness and elasticity (P<0.05). Therefore, the crossbred progenies of Nubian black goat and Hainan black goat have advantages in meat yield and meat performance, and the main meat quality indexes are not significantly different, which meets the market requirements for high-yield and high-quality hybrid combinations, and can be used for cross promotion. | Wei Limin Sun Ruiping Liu Yan Liu Ruina Liu Quanwei Zheng Xinli Wang Feng Huang Lili Xing Manping | 2019 | Animal Husbandry and Feed Science2019，11，2： | 2 |
| 7 | DSC analyses of static and dynamic precipitation of an Al-Mg-Si-Cu aluminum alloy显示文摘In the present investigation, both static and dynamic precipitations of an Al–Mg–Si–Cu aluminum alloy after solid-solution treatment(SST)were comparatively analyzed using differential scanning calorimetry(DSC). Dynamic aging was performed in the SST alloy through equal channel angular pressing(ECAP) at different temperatures of room temperature, 110, 170, 191 and 300 1C. For comparison, static artificial aging was conducted in the SST alloy at 191 1C with two aging times of 4 and 10 h. The DSC analyses reveal that the dynamic precipitation has occurred in the ECAPed samples, while the activation energies associated with the strengthening precipitates in the dynamic samples are considerably higher than the energies in the SST and static aged samples. The higher activation energies are probably attributed to the smaller grains and higher dislocation density developed after ECAP. The results in the present investigation allow the prediction of the type of the dynamic precipitates to influence the strength of the ultrafine grained alloy during ECAP at various temperatures. | Manping Liu Zhenjie Wu Rui Yang Jiangtao Wei Yingda Yu Pal C.Skaret Hans J.Roven | 2015 | Progress in Natural Science:Materials International2015，25，2： | 2 |
| 8 | Effects of Crude Fiber Levels on Production Performance, Organ Index and Serum Biochemical Parameters of Dingan Geese Aged from 1 to 28 Days显示文摘[Objective]The paper was to investigate the effects of dietary crude fiber level on production performance,organ index and serum biochemical parameters of Dingan geese aged from 1 to 28 days.[Method]A total of 144 1-day-old Dingan geese with the same genetic background and similar initial weight(88.75±0.21g)were randomly assigned into 3 groups with 4 replicates per group and 12 geese per replicate,and fed with the diets containing 2.56%,3.52% and 4.48% crude fiber,respectively.The trial lasted 28 d.[Result]1)The final weight and daily gain of 3.52% CF group were significantly higher than those of 2.56% CF group(P<0.05);the feed/gain ratio was markedly lower than that of 2.56% CF group(P<0.05).2)The slaughter rate,semi-eviscerated rate and leg muscle rate of 3.52% CF group were higher than those of 2.56% and 4.48% CF groups(P>0.05).3)As the dietary crude fiber levels rose,the abdominal fat rate showed a downward trend(P>0.05).4)The liver index of 3.52% CF group was significantly higher than that of 2.56% CF group(P<0.05).4)Compared with 2.5%and 4.48% CF groups,the serum albumin concentrations of 3.52% CF group markedly increased(P<0.05),the serum total protein and globin contents were higher(P>0.05),but the serum uric acid level was lower(P>0.05).[Conclusion]When the crude fiber level was 3.52%,the production performances of Dingan geese aged from 1 to 28 days were better,and the liver index and serum albumin level could be obviously improved. | Liu Quanwei Wei Limin Wang Feng Lin Dajie Xing Manping Yang Shaoxiong Sun Ruiping Ye Baoguo | 2019 | Animal Husbandry and Feed Science2019，11，3： | 1 |
| 9 | Microstructure and mechanical properties of Mg-Zn-Si-based alloys显示文摘 | YUAN Guangyan LIU Manping DING Wenjiangf | 2003 | Materials Science & Engineering A2003，357，12： | 1 |
| 10 | Dynamic precipitation during severe plastic deformation of an Al–Mg–Si aluminium alloy显示文摘 | Hans J. Roven Manping Liu Jens C. Werenskiold | 2007 | Materials Science & Engineering A2007，，： | 1 |
| 11 | Tensile properties of extruded ZK60-RE alloys显示文摘 | CHUNJIANG Ma MANPING Liu GUOHUA Wu | 2003 | Materials Science and Engineering A2003，，349： | 1 |
| 12 | Tensile properties of extruded ZK60-RE alloy显示文摘 | Ma Chunjiang Liu Manping | 2003 | Materials Science and Engineering2003，349，： | 1 |
| 13 | Tensile properties of extruded ZK60–RE alloys显示文摘 | Chunjiang Ma Manping Liu Guohua Wu Wenjiang Ding Yanping Zhu | 2002 | Materials Science & Engineering A2002，，1： | 1 |
| 14 | 显示文摘 | Liu Manping Wang Qudong Liu Zili | 2002 | Journal of Materials Science Letters2002，21，： | 1 |
| 15 | Tensile properties of extrudedZK60-RE alloys 显示文摘 | Ma Chunjiang Liu Manping | 2003 | Materials Science and Engineering2003，349，： | 1 |
| 16 | Tensile properties of extruded ZK60-RE alloys 显示文摘 | Chunjiang Ma Manping Liu Wenjiang Ding | 2003 | Materials Science and Engineering2003，349，： | 1 |
| 17 | Tensile Properties of Extruded ZK60-RE Alloys显示文摘 | Liu Manping Guohua | 2003 | Materials Science and Engineering A2003，，349： | 1 |
| 18 | Search for cell motility and angiogenesis inhibitors with potential anticancer activity: Beauvericin and other constituents of two endophytic strains of Fusarium oxysporum 显示文摘 | Zhan Jixun Burns Anna M Liu Manping X | 2007 | J Nat Prod2007，70，2： | 1 |
| 19 | Behavior of MgAl-Ca alloy during solution heat treatment at 415 ℃显示文摘 | Liu Manping Wang Qudong Liu Zili | 2002 | Journal of Materials Science Letters2002，21，： | 1 |
| 20 | Tensile properties of extruded ZK60-RE alloys 显示文摘 | Ma Chunjiang Liu Manping Ding Wenjiang | 2002 | Materials Science and Engineering2002，294，： | 1 |
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