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147篇 您的检索式:作者名="LiuPing"
    题名 作者 年代 出处 被引量
1Synthesis of well-defined Fe3O4 nanorods/N-doped graphene for lithium-ion batteries显示文摘磁性的 nanoparticles 的几何尺寸和分发对 graphene (GN ) 的形态学批评 nanocomposites,并且当这些 composites 在锂离子电池(解放) 被用作阳极材料时,因此,他们能影响能力和骑车的性能。在这个工作, Fe 3 O 4 nanorods 在二步,一个热水的过程和一个退火的过程从一位二进制先锋被扔到充分扩大的做氮的 GN 表上。这条线路有效地调节了 Fe 3 O 4 nanorod 尺寸分发并且阻止了他们的聚集。二进制先锋的转变被 X 光检查衍射(XRD ) 描绘, Fourier 变换红外线(FTIR ) 光谱学, X 光检查光电子光谱学(XPS ) , thermogravimetric 分析(TGA ) ,和传播电子显微镜学(TEM ) 。XPS 分析显示了做 N 的 GN 表的存在,并且磁性的 nanocrystals 在弄平的做 N 的 GN 表的表面上被抛锚并且一致地散布了。作为高效阳极材料,结构为电子运输和交换是有益的,吗导致 929 妈頿酎鯺?的一个大可逆能力?钱醨?鎓?鑟醫???钳????頿铭????龜鴿????讵??徬?讂?疞???鐿?鯷鳅?醛???讬????锿???魝??螮?箖徬吗??Jiqing Jiao Wenda Qiu Jianguo Tang Liuping Chen Laiying Jing 2016Nano Research2016,9,5:18
2Numerical modeling of secondary migration and its applications to Chang-6 Member of Yanchang Formation (Upper Triassic), Longdong area, Ordos Basin, China显示文摘Mathematic modeling, established on the basis of physical experiments, is becoming an increasingly important tool in oil and gas migration studies. This technique is based on the observation that hydrocarbon migration tends to take relative narrow pathways. A mathematical model of hydrocarbon migration and accumulation is constructed using the percolation theory. It is then calibrated using physical experimental results, and is tested under a variety of conditions, to understand the applicability of the model in different migration cases. Through modeling, dynamic conditions of large-scale migration pathways within homogeneous formations can be evaluated. Basin-scale hydrocarbon migration pathways and their characteristics are analyzed during the model application to the Chang-8 Member of the Triassic Yanchang Formation in Longdong area of Ordos Basin. In heterogeneous formations, spatial changes in fluid potential determine the direction of secondary migration, and heterogeneity controls the characteristics and geometry of secondary migration pathways.LUO XiaoRong YU Jian ZHANG LiuPing YANG Yang CHEN RuiYin CHEN ZhanKun ZHOU Bo 2007Science China Earth Sciences2007,50,z2:13
3Aging Behavior of Cu-Cr-Zr-Ce Alloy显示文摘The aging properties of Cu-0.35Cr-0.038Zr-0.055Ce alloy are studied. The results show that can obtain higher electrical conductivity and microhardness after solutioned at 920°Cfor Ih, and aged at 500°C. The process of precipitation of the secondary phase can be accelerated with cold deformation before aging, so properties of the alloy are improved. Upon aging at 500°C for 30 minutes after 60% cold deformation, the values of electrical conductivity and microhardness are 69.0%IACS and 152HV respectively, but they are only 66.2%IACS and 136HV upon directly aging after solution. With the addition of a trace of rare earth element Ce, the value of microhardness of Cu-0.35Cr-0.038Zr alloy increases 18-25HV, while the value of electrical conductivity drops a little.LIUYong LIUPing SUJuan-hua TIANBao-hong LIWei 2004材料热处理学报2004,25,5:11
4Finite difference numerical simulation of guided wave propagation in the full grouted rock bolt显示文摘Based on guided wave theory and considering the grouted rock bolt as waveguide medium, we have constructed a three dimensional model of grouted rock bolt with the dynamics of finite difference numerical simulation software FLAC3D4.0, and simulated the propagation behavior of the guided wave in the full grouted rock bolt. The simulated waveform and wave velocity matched well with the experimental results. We have made a more in-depth and comprehensive study of the wave velocity, wave component and attenuation characteristics of the guided wave propagating in rock bolt, and found some new characteristics and phenomena. In addition, some phenomena that haven’t been explained in the previous researches have also been discussed in this paper. The result showed that when guided wave propagates in grouted rock bolt, after the body wave decays, there is still the interface wave-Stoneley wave that does not decay in the axial direction of the bolt. The findings can provide some reference for rock bolt testing and the selection of the optimal excitation wave of testing.YAN ZhiXin CAI HanCheng WANG QunMin CAO XiaoHong ZHANG LiuPing 2011Science China(Technological Sciences)2011,54,5:10
5Application of Wavelet Analysis toInterference Elimination for Geochemical Hydrocarbon Exploration显示文摘Interference in the data of geochemical hydrocarbon exploration is a large obstacle for anomaly recognition. The multiresolution analysis of wavelet analysis can extract the information at different scales so as to provide a powerful tool for information analysis and processing. Based on the analysis of the geometric nature of hydrocarbon anomalies and background, Mallat wavelet and symmetric border treatment are selected and data pre-processing (logarithm-normalization) is established. This approach provide good results in Shandong and Inner Mongolia, China. It is demonstrated that this approach overcome the disadvantage of backgound variation in the window (interference in window), used in moving average, frame filtering and spatial and scaling modeling methods.Zhang Liuping Ruan Tianjian Faculty of Earth Resources, China University of Geosciences, Wuhan 430074 2000Journal of Earth Science2000,19,1:7
6Noble gases in corundum megacrysts from the basalts in Changle,Shandong Province,eastern China显示文摘This study presents noble gaseous data of the corundum megacrysts from the Cenozoic basalts in Changle, Shandong Province, eastern China. It is known that no noble gaseous data of corundum megacryst have been documented before. The 3He/4He ratios (1.13-7.37 Ra) of the corundums from Changle vary from atmosphere to MORB values; the 20Ne/22Ne (9.67-10.75) and 21Ne/22Ne (0.0280-0.0372) data define two linear trends on Ne three-isotope diagram, respectively, along the MFL and the correlation line between atmosphere and MORB; the 38Ar/36Ar (0.177-0.194) ratios, the 40Ar/36Ar (280.9 -404.2) ratios and the 128-136Xe/132Xe ration with obvious 129Xe excess are generally higher than at-mospheric component, but the 40Ar/36Ar ratios are much closer to atomospheric ratio. The isotopic compositions of noble gases (particularly for He and Ar) of the corundums are similar to those of py-roxene, anorthoclase megacrysts, and mantle-derived xenoliths from this area, and those of man-tle-derived xenoliths from several areas in eastern China. Therefore, the noble gases trapped in the corundums probably are from mantle source, representing a ‘mixed fluid' produced by the interaction between the lithospheric mantle and fluids releasing from the convective plate. Both the noble gas isotopic compositions and the oxygen isotopic compositions of the solid corundums are not the characteristics of crustal source. These suggest that the corundums crystallized from mantle-derived magmas with minimal crustal contamination.HU WenXuan SONG YuCai CHEN XiaoMing TAO MingXin ZHANG LiuPing 2007Chinese Science Bulletin2007,52,3:6
7Xiyanping injection therapy for children with mild hand foot and mouth disease:a randomized controlled trial显示文摘OBJECTIVE: To evaluate the clinical effects of Xiyan-ping injection intervention in pediatric patients with mild hand foot and mouth disease(HFMD).METHODS: A total of 329 patients were stratified and block-randomized for symptomatic treatment of HFMD and assigned to one of the following groups: Western Medicine(group A, n = 103), Xiyanping injection(group B, n = 109), or Xiyanping injection and symptomatic treatment using Western Medicine(group C, n = 117). During the trial, fever,rash, ulcers of the mouth were observed among participants in each group before and after treatment, and conversion rates from mild to severe HFMD were measured.RESULTS: After 3-7 days' treatment, no significant differences in the conversion rates from mild to severe HFMD were observed among the three groups(P > 0.05). There was a significantly low number of patients with the onset time of antifebrile effect,vanished time of hand and foot rashes and cumulative time for the ulcers in the mouth vanished,among the three groups(P < 0.05, P < 0.01). The onset time of antifebrile effect of patients in groups B and C were markedly shorter compared with those in group A(P < 0.05, P < 0.01); there was no statically significant difference observed between groups B and C(P > 0.05). No significant differences were observed in the time for body temperature recovery among the three groups(P > 0.05). There were no significant differences in adverse effects among the three groups(P > 0.05).CONCLUSION: Xiyanping injection together with use of Western Medicine is most effective for symptomatic treatment of mild HFMD. No severe adverse reactions were observed.Zhang Guoliang He Liyun Tang Liuping Yang Tong Zou Xinying Zhu Qingxiong Yan Shiyan Hou Yong Huang Baoju Zhao Jindong Li Yan Huang Jihan 2017Journal of Traditional Chinese Medicine2017,37,3:4
8FINITE ELEMENT ANALYSIS ABOUT STRESS AND STRAIN OF SURFACE PEELING IN Cu-Fe-P SHEET显示文摘The microstructure of surface peeling in finish rolled Cu-0.1Fe-0.03P sheet is analyzed by scanning electron microscope and energy dispersive spectroscope. Fe-rich areas of different contents are observed in the matrix. The stress distributions and strain characteristics at the interface between Cu matrix and Fe particle are studied by elastic-plastic finite element plane strain model. Larger Fe particles and higher deforming extent of finish rolling are attributed to the intense stress gradient and significant non-homogeneity equivalent strain at the interface and accelerate surface peeling of Cu-0.1Fe-0.03P lead frame sheet.SuJuanhua LiHejun DongQiming LiuPing KangBuxi 2005Chinese Journal of Mechanical Engineering2005,18,2:4
9Anti-depression effect of Kai Xin San and research of its compatibility显示文摘Kai Xin San (KXS) is a category of traditional complex prescription that was first recorded in Bei Ji Qian Jin Yao Fang by SUN Si-miao in the Tang Dynasty and then also recorded in Tai Ping Hui Min He Ji Ju Fang, Qian Jin Yao Fang and Gu Jin Lu Yan in later generations. It was mainly used by herbalist doctors to treat symptoms including desolation, moodiness, forgetfulness etc., which are similar to the neurosis such as depression, anxiety and difficulty in studying and memory in the West medicine. The former recorded formulas were all composed of ginseng, polygala, hoelen and acori graminei with different proportion. But there are no systematic studies on the clinical adaptive symptom corresponding to different matching and the best anti-depressive matching so far.CHENYi-hong WANGDong-xiao LIUPing WANGJin-liang DAIChang CHENGGui-fang 2005Chinese Medical Journal2005,,14:4
10Preparation of Alumina Abrasion-Resistant Ceramic Grinding Ball with Spent FCC Equilibrium Catalyst显示文摘化学作文,结构和从一个炼油厂的花的 FCC 平衡催化剂的热稳定性被 XRD,英尺红外, DTA-TG,赌注,完全的化学分析, SEM,和 XRF 描绘。花的 FCC 平衡催化剂,泥土,钡碳酸盐,和滑石被用作主要原料准备氧化铝在为建筑学瓦的制造磨工厂的粉末要过去常的磨损抵抗的陶器的球。结果证明在合适的明确的表达学习以后,花的 FCC 平衡催化剂能代替工业氧化铝准备磨球的高效。同时,磨擦的球的各种各样的表演索引能为类似的产品满足优秀标准,并且另外,节省效果的精力在磨擦的节的操作被完成,导致稳固的浪费的成功的全面利用。Liang Zhiyu Yan Guiyang Zheng Liuping Weng Xiulan Huang Zheqiang 2010China Petroleum Processing & Petrochemical Technology2010,12,4:4
11Time-varying linear control for tiltrotor aircraft显示文摘Tiltrotor aircraft have three flight modes: helicopter mode, airplane mode, and transition mode. A tiltrotor has characteristics of highly nonlinear, time-varying flight dynamics and inertial/-control couplings in its transition mode. It can transit from the helicopter mode to the airplane mode by tilting its nacelles, and an effective controller is crucial to accomplish tilting transition missions. Longitudinal dynamic characteristics of the tiltrotor are described by a nonlinear Lagrangeform model, which takes into account inertial/control couplings and aerodynamic interferences.Reference commands for airspeed velocity and attitude in the transition mode are calculated dynamically by visiting a command library which is founded in advance by analyzing the flight envelope of the tiltrotor. A Time-Varying Linear(TVL) model is obtained using a Taylorexpansion based online linearization technique from the nonlinear model. Subsequently, based on an optimal control concept, an online optimization based control method with input constraints considered is proposed. To validate the proposed control method, three typical tilting transition missions are simulated using the nonlinear model of XV-15 tiltrotor aircraft. Simulation results show that the controller can be used to control the tiltrotor throughout its operating envelop which includes a transition flight, and can also deal with vertical gust disturbances.Jing ZHANG Liguo SUN Xiangju QU Liuping WANG 2018Chinese Journal of Aeronautics2018,31,4:4
12Aging Precipitation Characteristics of Lead Frame Cu-Cr-Zr-Mg Alloy显示文摘This paper presents the effects of aging processes on the properties and microstructure of Cu-0.3Cr-0.15Zr-0.05Mg lead frame alloy. Optimal conditions for good hardening and electrical conductivity can be obtained by solution treating at 920 °C for Ih and aging at 470^0 for 4h and at 550^ for Ih. The hardness and electrical conductivity can reach 108HV, 73%IACS and 106HV, 76%IACS, respectively. Aging precipitation was dealt with by transmission electronic microscope (TEM). At 470 °C aging for 4h the fine precipitation of an ordered compound CrCu2(Zr,Mg) is found in matrix as well as fine Cr and Cu4Zr. Aging at 550’C for Ih some precipitates are still coherent with matrix. The CrCu2(Zr,Mg) completely dissolves into Cr and Cu4Zr.DONGQi-ming SUJuan-hua LIUPing LIHe-jun KANGBu-xi 2004材料热处理学报2004,25,5:4
13From deep basin gas to diagenetic trap—An example from the Yulin Gas Field in the Ordos Basin显示文摘In the updip portion of the Yulin Gas Field in the Ordos Basin, there are no any structural, stratigraphic and sedimentary lithologic seals. Using thin-section petrography, ultraviolet fluorescence microscopy, micro-thermometry and Raman microspectrometry, this paper finds out the diagenetic trap and studies the diagenetic history of this field. It was revealed that three phases of diagenesis and hydrocarbon charging happened in late Triassic, late Jurassic and the end of early Cretaceous respectively. In the first two phases, acid geofluid entered the reservoir and caused dissolution and cementation. Although the porosities had been increased, further compaction accompanying re-subsidence resulted in tight sandstone and conglomerates. Till the end of the early Cretaceous, bulk of gas migrated into the tight reservoir. Cementation, however, kept on in the updip portion of this field due to low gas saturation and formed the diagenetic trap. The mechanism for gas accumulation was changed from deep basin gas to diagenetic trap, which offers a sealing condition that can retain gas for much longer time.ZHANG LiuPing LUO XiaoRong MA XinHua CHEN MengJin WU MingHui 2007Chinese Science Bulletin2007,52,21:4
14Establishing the knowledge repository of rapidly solidified aging Cu-Cr-Zr alloy on the artificial neural-network显示文摘The non-linear relationship between parameters of rapidly solidified aging processes and mechancal and electrical properties of Cu-Cr-Zr alloy is available by using a supervised artificial neural network (ANN). A knowledge repository of rapidly solidified aging processes is established via sufficient data learning by the network. The predicted values of the neural network are in accordance with the tested data. So an effective measure for foreseeing and controlling the properties of the processing is provided.SUJuanhua DONGQiming LIUPing LIHejun KANGBuxi TIANBaohong 2004Rare Metals2004,23,2:3
15Multi-origin alkanes related to CO_2-rich, mantle-derived fluid in Dongying Sag, Bohai Bay Basin显示文摘With the newly obtained carbon isotope data for the natural gas, a pilot study of multiple-sourced alkanes related to the mantled-derived fluid is presented. The carbon isotope values of alkanes in the Dongying Sag possess the features indicating a general organic origin. However, there are two sub-populations in the isotopic data set, which reflect two specific types of origins. In general, the sub-population with high δ13CCH4 values is related to the CO2-rich, mantle-derived fluid, and it is distributed in the belts where mantle-derived fluid flow and basic volcanic activities have occurred. Geological and geochemical studies demonstrate that this variation of methane carbon isotope values in the Dongying Sag is unrelated with the basin bury and thermal histories, types of source rocks, and reactions between basin fluid and rocks. Mixing of mantle-derived fluid and organic sourced hydrocarbons is probably the cause for the variation.JIN Zhijun, ZHANG Liuping, ZENG Jianhui & YANG LeiBasin & Reservoir Research Center, University of Petroleum, Beijing 102249, China Key Laboratory for Hydrocarbon Accumulation Mechanism of Chinese Ministry of Education, University of Petroleum, Beijing 1 2002Chinese Science Bulletin2002,47,20:3
16Study on Aging Kinetics of CuNiSi Alloy显示文摘Precipitation behavior of the early aging stage and the transformation kinetics were studied by analysing the electrical resistance variation of the solution Cu-Ni-Si alloy in the process of aging. Due to the linear relationship between electrical conductivity and volume fraction of precipitates, the transformation kinetics equation can be educed from the Avrami empirical formula, on the basis of this equation, transformation kinetics curve and 'C' curve of the isothermal transformation were established.LIUPing LEIJing-guo ZHAODong-mei JINGXiao-tian 2004材料热处理学报2004,25,5:3
17Cloning and expression of SgCYP450-4from Siraitia grosvenorii显示文摘CYP450 plays an essential role in the development and growth of the fruits of Siraitia grosvenorii. However, little is known about the SgCYP450-4 gene in S. grosvenorii. Here, based on transcriptome data, a full-length c DNA sequence of SgCYP450-4 was cloned by reverse transcriptasepolymerase chain reaction(RT-PCR) and rapid-amplification of c DNA ends(RACE) strategies. SgCYP450-4 is 1677 bp in length(Gen Bank accession No. AEM42985.1) and contains a complete open reading frame(ORF) of 1422 bp. The deduced protein was composed of 473 amino acids, the molecular weight is 54.01 kDa, the theoretical isoelectric point(PI) is 8.8, and the protein was predicted to possess cytochrome P450 domains. SgCYP450-4 gene was highly expressed in root, diploid fruit and fruit treated with hormone and pollination. At 10 days after treatment with pollination and hormones, the expression of SgCYP450-4had the highest level and then decreased over time, which was consistent with the development of fruits of S.Grosvenorii. Hormonal treatment could significantly induce the expression of SgCYP450-4. These results provide a reference for regulation of fruit development and the use of parthenocarpy to generate seedless fruit, and provide a scientific basis for the production of growth regulator application agents.Dongping Tu Xiaojun Ma Huan Zhao Changming Mo Qi Tang Liuping Wang Jie Huang Limei Pan 2016Acta Pharmaceutica Sinica B2016,6,6:3
18Activated carbon nanofiber webs made by electrospinning for capacitive deionization显示文摘Gang Wang Chao Pan Liuping Wang Qiang Dong Chang Yu Zongbin Zhao Jieshan Qiu 2012Electrochimica Acta2012,,:2
19Studies on the kinetics of zinc and indium extraction from indium-bearing zinc ferrite显示文摘Yanjuan Zhang Xuanhai Li Liuping Pan Xinyuan Liang Xueping Li 2009Hydrometallurgy2009,,3:2
20Insecticide resistance status and detoxification enzymes of wheat aphids Sitobion avenae and Rhopalosiphum padi显示文摘Dear Editor,Wheat aphids are serious pests in wheat growing areas of China,and can lead to from 10%to over 30%reduction in wheat production(Wang et al.,2006).The main wheat aphids are Sitobion avenae(Fabricius),Rhopalosiphum padi(Linnaeus),Metopolophium dirhodum(Walker),and Schizaphis graminum(Rondani).In the Huang-Huai area of China,the dominant wheat aphid species are S.avenae and R.padi.For many years,farmers have applied chemical pesticides to control wheat aphids.The number of wheat aphids inLiuping Zhang Hong Lu Kun Guo Shumin Yao Feng Cui 2017Science China(Life Sciences)2017,60,8:2
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