|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Quantitative analysis of lake area variations and the influence factors from 1971 to 2004 in the Nam Co basin of the Tibetan Plateau显示文摘By using remote sensing and GIS technologies, spatial analysis and statistic analysis, we calculated the water area and volume variations of the Nam Co Lake from 1971-2004, and discussed their influence factors from the viewpoints of climatic change and water balance. Data source in this study includes bathymetric data of the lake, aerial surveyed topographic maps of 1970, remote sensing images of 1991 and 2004 in the lake catchment, meteorological data from 17 stations within 1971-2004 in the adjacent area of the lake catchment. The results showed that the lake area expanded from 1920 km2 to 2015 km2 during 1971 to 2004 with the mean annual increasing rate (MAIR) of 2.81 km2 a-1, and the lake volume augmented from 783.23×108 m3 to 863.77×108 m3 with the MAIR of 2.37×108 m3. Moreover, the MAIR of the lake area and volume are both higher during 1992 to 2004 (4.01 km2 a-1 and 3.61×108 m3 a-1) than those during 1971 to 1991 (2.06 km2 a-1 and 1.60×108 m3 a-1). Analyses of meteorological data indicated that the continue rising of air temperature conduced more glacier melting water. This part of water supply, together with the increasing precipitation and the descending evaporation, contributed to the enlargement of Nam Co Lake. The roughly water balance analyses of lake water volume implied that, in two study periods (1971-1991 and 1992-2004), the precipitation supplies (direct precipitations on the lake area and stream flow derived from precipitations) accounted for 63% and 61.92% of the whole supplies, while the glacier melting water supplies occupied only 8.55% and 11.48%, respectively. This showed that precipitations were main water supplies of the Nam Co Lake. However, for the reason of lake water increasing, the increased amount from precipitations accounted for 46.67% of total increased water supplies, while the increased amount from glacier melting water reached 52.86% of total increased water supplies. The ratio of lake evaporation and lake volume augment showed that 95.71% of total increased water supplies contributed to the augment of lake volume. Therefore, the increased glacier melting water accounted for about 50.6% of augment of the lake volume, which suggested that the increased glacier melting water was the main reason for the quickly enlargement of the Nam Co lake under the continuous temperature rising. | ZHU LiPing XIE ManPing WU YanHong | 2010 | Chinese Science Bulletin2010,55,13: | 64 |
| 2 | Microstructural characterization of titanium matrix composite coatings reinforced by in situ synthesized TiB + TiC fabricated on Ti6Al4V by laser cladding显示文摘Titanium-based composite coatings reinforced by in situ synthesized TiB and TiC particles between titanium and B4C were successfully fabricated on Ti6Al4V by laser cladding.Phase constituents of the coatings were predicted by thermodynamic calculations in the Ti-B4C-Al and Ti-B-C-Al systems,respectively,and were validated well by X-ray diffraction(XRD) analysis results.Microstructural and metallographic analyses were made by scanning electron microscopy(SEM) and electron probe micro-analysis(EPMA).The results show that the coatings are mainly composed of α-Ti cellular dendrites and the eutecticum in which a large number of needle-shaped TiB and a few equiaxial TiC particles are embedded.C is enriched in α-Ti cellular dendrites and far exceeds the theoretical maximum dissolubility,owing to the extension of saturation during laser cladding.The coatings have a good metallurgical bond with the substrate due to the existence of the dilution zone,in which a great amount of lamella β-Ti grains consisting of a thin needle-shaped martensitic microstructure are present and grow parallel to the heat flux direction;a few TiB and TiC reinforcements are observed at the boundaries of initial β-Ti grains. | LI Jun YU Zhishui WANG Huiping LI Manping | 2010 | Rare Metals2010,29,5: | 16 |
| 3 | Environmental changes reflected by n-alkanes of lake core in Nam Co on the Tibetan Plateau since 8.4 kaB.P.显示文摘The n-alkanes are extracted from NMLC-1 core that was drilled in the Nam Co, central Tibet. They are measured by using Gas Chromatography and Mass Spectrometry (GC/MS) for componential and quantitative analyses. According to the constructed depth-age model, the component and concentration of n-alkanes, together with total organic carbon (TOC), total nitrogen (TN) and carbonate are used to elu- cidate palaeoenvironmental changes of Nam Co during the past 8.4 ka. The results indicate that Holo- cene environment performs three stages in the lake area. In the stage of 8.4―6.7 kaB.P., it was warmer while precipitation slightly increased. This stage was ended by an obvious cold/dry event. During 6.7― 5.8 kaB.P., temperature increased rapidly and reached its maximum values at about 6.0 kaB.P. The environments were warm/wet optimum for the blooming of terrestrial plants and submerged aquatic plants. After that, temperature decreased continuously and showed the lowest values at about 3.0 kaB.P. From 2.9 kaB.P. to the present, temperature rose again but alternated with cold and warm. The lake area tended to be dry after 1.4 kaB.P. During 600―400 aB.P., the environmental feature was the reflection of 'Little Ice Age'. | LIN Xiao ZHU LiPing WANG Yong WANG JunBo XIE ManPing JU JianTing Roland MAUSBACHER Antje SCHWALB | 2008 | Chinese Science Bulletin2008,53,19: | 14 |
| 4 | Composition, spatial distribution, and environmental significance of water ions in Pumayum Co catchment, southern Tibet显示文摘主要阳离子(Mg2+ , Ca2+ , Na+ ,和 K+) 和阴离子的化学(HCO3 ? , SO4 2 ? ,并且 Cl ?) 在普麦乌姆湖的水里,公司和它的流入河被学习,在各种各样的流入河和湖之中揭示明显的离子的差别。湖水的化学类型是 Mg2+-Ca2+-HCO3 ?-SO4 2+ ,但是主要流入河的主要离子是 Ca2+-Mg2+-HCO3 ? 。在 Jiaqu 河的湖入口,主要流入河,有在深度以内的水化学的重要变化不到 2 m。然而,它在湖的另外的区域是几乎同类的。与水化学和湖水的氧同位素的分发的证据,因此,一个结论能被构画出那条 Jiaqu 河在沉没三角洲上在水的 hydrochemistry 上有不同效果,而这为另外的河不是事实。吉布斯阴谋表明负责控制湖水的化学作文的主导的机制是在排水区域捱过的岩石。离子比率和第三的阴谋进一步探索了控制集水的水化学的主要过程,即,捱过的碳酸盐,捱过的黄铁矿,并且硅酸盐捱过。在河水和湖水之间的不同 hydrochemistry 特征可以源于 CaCO3 降水。调查结果将在湖在 paleolimnological 研究有益于碳酸盐的环境意义的解释。 | ZHU Liping JU Jianting WANG Yong XIE Manping WANG Junbo PENG Ping ZHEN Xiaolin LIN Xiao | 2010 | Journal of Geographical Sciences2010,20,1: | 9 |
| 5 | Hydrodynamic process of Tibetan Plateau lake revealed by grain size:Case study of Pumayum Co显示文摘Under the background of global warming,some lakes on the Tibetan Plateau(TP) are potentially sensitive to temperature change.With a case study of Pumayum Co,where glacier meltwater is important to supply(we call this a glacier-fed lake hereafter),we analyze the sensitivity of lake sediment grain size to temperature change.This is done by resolving the modern hydrodynamic process,coupled with comparison of paleoclimatic proxies.According to the spatial distributions of parameters,percentage of grain size and the grain size frequency distribution curve,hydrodynamic processes are analyzed.Five clastic sedimentation types are thereby discriminated.In the open lake area,suspended load transport is the main transport agent.Grain Size Trend Analysis(GSTA),a sediment dynamics model,reveals a trend toward eastward transport.This indicates that the largest and glacier-fed river,the Jiaqu River,influences the entire lake(not just the subsurface alluvial fan),and that lake sediment grain size may serve as a temperature indicator.Time series comparison between grain size of a short core from the central lake and meteorological data confirms this temperature indication,which in turn shows reliability of the method discriminating the hydrodynamic process.This case study will improve the ability of paleoclimatic reconstruction using lake sediment in glacier-fed lakes on the Tibetan Plateau. | JU JianTing ZHU LiPing FENG JinLiang WANG JunBo WANG Yong XIE ManPing PENG Ping ZHEN XiaoLin LÜXinMiao | 2012 | Chinese Science Bulletin2012,57,19: | 7 |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | On the Unusual Holocene Carbonate Sediment in Lake Nam Co,Central Tibet显示文摘In lacustrine sediments,aragonite is a widespread mineral,whereas monohydrocalcite is a rare carbonate mineral. In the cold and high-attitude Xizang (Tibetan) Plateau,where aragonite has been commonly found in lacustrine sediments,there is no aragonite,but low-Mg calcite,monohydrocalcite and trace dolomite. The lake receives solutes primarily from surface runoffs and remains fairly constant water chemistry for a long time. The total CaCO3 percentage in sediments could be controlled by evaporation and inflow of detrital materials. The absence of aragonite is unusual when compared to other lacustrine sediments from the Tibetan Plateau. This could be due to low Ca/Mg ratio,low salinity,low Mg and Ca concentration. Monohydrocalcite might precipitate from the lake water mediated by biological activities. Low-Mg calcite originated from minor ostracoda shell and the precipitation of lake water with biological activities. | LI Minghui KANG Shichang ZHU Liping WANG Feiyue WANG Junbo YI Chaolu FANG Xiaomin XIE Manping | 2009 | Journal of Mountain Science2009,6,4: | 3 |
| 10 | A TAXONOMICAL AND ECOLOGICAL OVERVIEW OF RECENT AND HOLOCENE OSTRACODES OF THE NAM CO REGION, SOUTHERN TIBET显示文摘We present a list of living and (sub) fossil Ostracoda (Crustacea) from Holocene sediments from Lake NamCo,Southern Tibet, including descriptions, distribution and ecological data of the important taxa from the Nam Cocatchment. Species associations from lake surface sediments, sediment cores and outcrop samples consist of eight speciesincluding Candona candida ( O.F. Müller, 1776 ) , Candona xizangensis ( Huang, 1982 ) , Eucypris afghanistanensis( Hartmann, 1964) , Fabaeformiscandona danielopoli ( Yin & Martens, 1997 ) , Ilyocypris cf. mongolica ( Martens, 1991 ) ,? Leucocythere dorsotuberosa ( Huang, 1982 ) , Leucocytherella sinensis ( Huang, 1982 ) and Limnocythere inopinata ( Baird,1843). The dominant species are ? L. dorsotuberosa and L. sinensis. They show morphological variations with different degreesof ornamentation. We regard the variable noding and rib formation as intraspecific variability possibly driven byenvironmental factors. In general,the number and degree of ribs increases with water depth in ? L. dorsotuberosa. Thus,theornamentation may present a means to reconstruct(paleo) water depths. Our list is intended to serve as a taxonomical andpaleoecological primer for future paleolimnological work. | C. Wrozyna P. Frenzel Manping Xie Liping Zhu A. Schwalb | 2009 | 第四纪研究2009,29,4: | 3 |
| 11 | Direct fabrication of single-crystal-like structure using quasi-continuous-wave laser additive manufacturing显示文摘The synchronously periodic re-melting of molten pool was firstly introduced in additive manufacturing to promote the epitaxial growth of columnar structure using a novel quasi-continuous-wave(QCW)laser.The epitaxial growth of columnar structure was intensified and the single-crystal-like sample with highly oriented 'zigzag' columnar grains was produced.The modified molten-pool geometry and the synchronously high-frequency re-melting of the molten pool contribute to the formation of singlecrystal-like structure.This work reports a new route to promote the continuously epitaxial growth of dendrites for fabrication of single-crystal-like sample. | Hui Xiao Manping Cheng Lijun Song | 2021 | Journal of Materials Science & Technology2021,,1: | 3 |
| 12 | 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 |
| 13 | 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 |
| 14 | 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 |
| 15 | A Fresnel Reflection-Based Optical Fiber Sensor System for Remote Refractive Index Measurement Using an OTDR显示文摘在这份报纸,我们作为一个讯问方法用光时间领域反射计技术为遥远的折射索引测量建议一个夫累X尔基于思考的光纤维传感器系统。包围从长距离的折射索引离开能被使用这个传感器系统容易测量,它基于从纤维样品接口测试夫累X尔思考紧张操作。这个系统是一种简单配置,它是容易的处理。试验性的结果证明这大小的范围能到达大约 100.8 km,并且折射索引敏感从 38.71 dB/RIU 到在折射索引(RI ) 的 304.89 dB/RIU 从 1.3486 ~ 1.4525 的范围。 | Jianying Yuan Chunliu Zhao Manping Ye Juan Kang Zaixuan Zhang Shangzhong Jin | 2014 | Photonic Sensors2014,4,1: | 2 |
| 16 | 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 |
| 17 | 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 |
| 18 | Néel transition and γ?? transformation in polycrystalline Fe-Mn-Si shape memory alloys显示文摘 | Qin Zuoxiang Yu Manping Zhang Yansheng | 1996 | Journal of Materials Science1996,,9: | 1 |
| 19 | Comparisons between the chemical compositions of lake water, inflowing river water, and lake sediment in Nam Co, central Tibetan Plateau, China and their controlling mechanisms显示文摘 | Junbo Wang Liping Zhu Yong Wang Jianting Ju Manping Xie Gerhard Daut | 2010 | Journal of Great Lakes Research2010,,4: | 1 |
| 20 | 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 |