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    题名 作者 年代 出处 被引量
1Manufacture and Export of Complete Power Equipment显示文摘Through construction during over four decades, remarkable achievements have been made by China’s manufacturing industry of complete sets of power equipment. During the Seventh Five-Year Plan period, over RMB2 billion and several hundred million US dollars were invested in the introductionYi Fu’an 1997China's Foreign Trade1997,,10:0
2Application Research of Clinical Nursing Teaching Model Based on PBL Mode显示文摘Objective:To explore the application effect of PBL mode in clinical nursing teaching model.Methods:40 nursing students who were internships from June 2017 to April 2018 in our hospital were selected as subjects.They were divided into two groups,the control group and the experimental group,with 20 in each group.The control group used the traditional teaching model,and the experimental group used the PBL teaching model to compare the clinical teaching effects of the two groups of nursing students.Results:There was no significant difference between the two groups of nursing students in the basic nursing knowledge,the professional practice operation under the simulated clinical operating environment and the basic nursing operation(P>0.05),in the clinical operation environment,the professional practice evaluation results of the experimental group were significantly better than those of the control group,and the difference was statistically significant(P<0.05).Conclusion:The PBL teaching model has a good teaching effect in clinical nursing teaching,which can effectively improve the professional practice level of nursing students in the clinical environment and meet the requirements of modern clinical nursing professional ability level,therefore,the PBL mode is worthy of popularization and application in clinical nursing teaching.Fu’an Wang 2019Journal of Advances in Medicine Science2019,2,4:0
3A fractal model for soil pores and its application to determination of water permeability显示文摘Yong Fu Xu De’ An Sun 2002Physica A: Statistical Mechanics and its Applications2002,,1:1
4Immature crude oils in the salt lake depositional environment are related to organic matter precipitated at stage of carbonate in salt lake sedimentation sequences显示文摘The present paper studies the mineralogy and geochemistry of a geological section in Jianghan basin. Widely distributed immature oils in this basin have been shown to relate to the carbonate depositional stage of salt lake sedimentation cycle. It is concluded that only when the content of organic carbon in the rocks is taken into account, is it meaningful to calculate the immature oil in the source rocks.PENG Ping’an SHENG Guoying FU Jiamo JIANG Jiagang 2000Chinese Science Bulletin2000,45,S1:5
5Sedimentary records of black carbon in the sea area of the Nansha Islands since the last glaciation显示文摘Core 17962 taken from the sea area of the Nansha Islands recorded a sedimentary history of more than 30 000 years. The black carbon data from the core, which can inform us of the history of vegetation fires, show that during the last glaciation, especially during the last glacial maximum at about 18 kaBP, the fluctuation of the concentration and accumulation rate of the black carbon was relatively great, whereas it was small during the Holocene. The isotope composition of the black carbon indicates that the precursors of black carbon were mainly grasses from the last glaciation to the Holocene. The sub-alpine and alpine vegetation zones covered mainly with grass and bush on the lands around the southern South China Sea were probably the sources of black carbon. The altitudinal vegetation changes from the last glaciation to the Holocene gave rise to the changes of the sedimentary characteristics of black carbon.Guodong Jia Ping’an Peng Guoying Sheng Jiamo Fu 2000Chinese Science Bulletin2000,45,17:3
6The carbon isotope study of biomarkers in the Maoming and the Jianghan tertiary oil shale显示文摘In terms of the individual carbon isotope data of biomarkers present in the typical freshwater lake sediment (Maoming oil shale) and saline lake sediment lake (Jianghan oil shale) of China, this paper discusses their precursors and depositional environments of biomarkers in both sediment samples. Our studies showed that phytane and pristane of the Maoming oil shale were derived from the phytol side chain of chlorophyll a. By comparing the isotopic composition of 4-methyl sterane with that of sterane and hopane, it is suggested that 4-methyl sterane which has a higher abundance in the Maoming oil shale come from bacteria. The isotopic composition of biomarkers from the Jianghan rock sample (saline lake sediment) is significantly different from that of the Maoming oil shale (freshwater lake sediment). Gammacerane was derived from haloprotozoan, with δ13C being about -25.8‰, just in consistency with the value reported in previous studies. The isotopic composition of phytane and pristane in the JianghanZhiqiang Yu Ping’an Peng Guoying Sheng Jiamo Fu 2000Chinese Science Bulletin2000,45,S1:2
7Precambrian organic matter显示文摘The late progress of the research on Precambrian organic matter in biomarkers, isotopes and relative analytical techniques is reviewed. The key problems in the research of Precambrian organic matter, such as indigenous test of soluble organic matter, are also discussed. At the end, the further work upon Precambrian organic matter is suggested.Chao Li Ping’an Peng Guoying Sheng Jiamo Fu 2000Chinese Science Bulletin2000,45,4:2
8LB energy-saving high temperature shift catalyst and its adsorption thermodynamics显示文摘Lingchao Wei Fu’An Wang Yi Liu Yongli Chai 2009Korean Journal of Chemical Engineering2009,,1:1
9A fine-interpolation-based parametric interpolation method with a novel real-time look-ahead algorithm显示文摘Jin Yu’an He Yong Fu Jianzhong 2014Computer-Aided Design2014,55,2014:1
10Hypoxia-induced miR-210 in epithelial ovarian cancer enhances cancercell viability via promoting proliferation and inhibiting apoptosis显示文摘Li’an Li Ke Huang Yanqin You Xiaoyu Fu Lingyun Hu Lei Song Yuanguang Meng 2014International Journal of Oncology2014,,6:1
11Effects of organic matter heterogeneity on sorption and desorption of organic contaminants by soils and sediments显示文摘Weilin Huang Ping’an Peng Zhiqiang Yu Jiamo Fu 2003Applied Geochemistry2003,,7:1
12The role of mitochondrial calcium uniporter in neuroprotection in traumatic brain injury显示文摘Gang Cheng Luo’an Fu Hang-yu Zhang Ya-ming Wang Lei-ming Zhang Jian-ning Zhang 2012Medical Hypotheses2012,,:1
13Impacts of litter and understory removal on soil properties in a subtropical Acacia mangium plantation in China显示文摘Yanmei Xiong Hanping Xia Zhi’an Li Xi’an Cai Shenglei Fu 2008Plant and Soil (-)2008,,1:1
14HOT DEFORMATION OF CAST Pr-Fe-B MAGNETS显示文摘The hot deformation process of cast Pr19Fe74.5B5Cu1.5 magnets were studied.It isfound that the easy-axes are aligned parallel to the compressive strain direction in vari-ous hot deformation process.During hot deformation,the crushing of Pr2Fe14B matrixgrains and the relative slip and rotation between the grains take place and the Pr-richmelt is squeezed out of the magnet,leading to a fine,dense and well-aligned microstruc-ture in the fully-deformed magnets.Magnetic properties of Br=990 mT,iHc=880kA/m and(BH)m=191 kJ/m3are obtained.The increase of coercivity is attributed tothe fine Pr2Fe14B grains and the thin Pr-rich phase layer continuously distributed atthe grain boundaries.The increasing remanence is resulted primarily from the develop-ment of the easy-axis alignment as well as from the densification of the Pr2Fe14B matrix.The easy-axis alignment is developed by the relative slip and rotation of the crushedPr2Fe14B grains.A full and slow hot deformation is necessary for the good easy-axisalighnment and high magnetic properties.CHEN Zhongmin SHI Zhengxing WANG Leyi FU Hengzhi Northwestern Polytechnical University,Xi’an,China 1992Acta Metallurgica Sinica(English Letters)1992,5,11:0
15Analysis of the Performances and Optimization of Polyurethane Concrete with a Large Percentage of Fly Ash显示文摘The properties of polyurethane concrete containing a large amount of fly ash are investigated,and accordingly,a model is introduced to account for the influence of fly ash fineness,water ratio,and loss of ignition(LOI)on its mechanical performances.This research shows that,after optimization,the concrete has a compressive strength of 20.8 MPa,a flexural strength of 3.4 MPa,and a compressive modulus of elasticity of 19.2 GPa.The main factor influencing 28 and 90 d compressive strength is fly ash content,water-binder ratio,and early strength agent content.Tingting Huo Jiaquan Xue Zhi’an Fu 2023Fluid Dynamics & Materials Processing2023,19,2:0
16CYLINDRICAL WORM MACHINED BY THE CONE GRINDING WHEEL WITH TWO DEGREE-OF-FREEDOM AND MESHING THEORY OF ITS DRIVE①显示文摘CYLINDRICALWORMMACHINEDBYTHECONEGRINDINGWHEELWITHTWODEGREE-OF-FREEDOMANDMESHINGTHEORYOFITSDRIVE①ChengFu'an;DongMing;LiGuitao;...Cheng Fu’an Dong Ming Li Guitao Wang Shuren (Tianjin University) 1996Chinese Journal of Mechanical Engineering1996,9,4:0
17Blind source separation algorithm for communication complex signals in communication reconnaissance显示文摘Most blind source separation algorithms are only applicable to real signals,while in communication reconnaissance processed signals are complex.To solve this problem,a blind source separation algorithm for communication complex signals is deduced,which is obtained by adopting the Kullback-Leibler divergence to measure the signals’independence.On the other hand,the performance of natural gradient is better than that of stochastic gradient,thus the natural gradient of the cost function is used to optimize the algorithm.According to the conclusion that the signal’s mixing matrix after whitening is orthogonal,we deduce the iterative algorithm by constraining the separating matrix to an orthogonal matrix.Simulation results show that this algorithm can efficiently separate the source signals even in noise circumstances.Weihong FU Xiaoniu YANG Nai’an LIU Xingwen ZENG 2008Frontiers of Electrical and Electronic Engineering in China2008,3,3:0
18Tricyclic aromatic diterpanes found in the Tertiary sediments and their geochemical significance显示文摘One monoaromatic tricyclic diterpane and two aromatic tricyclic diterpanes were found in three low-maturity source rocks and five crude oils of the Tertiary Shahejie Formation in Shengli Oil Field. The compounds found include C19H28 (m/z 145, M+ 256) ring-C monoaromatic tricyclic terpane, C17H20 (m/z 209, M+ 224) and C18H22 (m/z 223,M+ 238) rings-B,C diaromatic diterpanes. The results show that these compounds are biomarkers of immature organic matter with a stability sequence of C18H22 > C17H20 > C19H28. The cleavage of ring-D of pentacyclic triterpanoids, such as oleanene, hopene, fernene, ursene, in the early stage of diagenesis may be one of the origin pathways of rings-B, C diaromatic tricyclic diterpanes.SHENG Guoying FU Jiamo SONG Yitao PENG Ping’an 2000Chinese Science Bulletin2000,45,S1:0
19SURFACE EFFECTS ON ELASTIC FIELDS AROUND SURFACE DEFECTS显示文摘There are always severe stress concentrations around surface defects like grooves or bugles,which might induce the failure of solid materials and structures.In the present paper,we consider the elastic fields around nanosized bugles and grooves on solid surfaces.The influence of surface elasticity on the elastic deformation is addressed through a finite element method.It is found that when the size of defects shrinks to nanometer,the stress fields around such defects will be affected significantly by surface effects.Xiaolong Fu Gangfeng Wang~★(SVL,Department of Engineering Mechanics,Xi’an Jiaotong University,Xi’an 710049,China) 2010Acta Mechanica Solida Sinica2010,23,3:5
20Origin of immature sulfur-rich oil in Jianghan oil field显示文摘Chemical structure of immature sulfur_rich kerogen and composition of immature sulfur_rich crude oil in Jianghan oil field have been studied. In molecular level, crude oil differs from thermolysed and chemolysed products of kerogen but does resemble the bitumen in immature sulfur_rich source rock. Therefore, immature sulfur_rich oil may be derived from the expelling of bitumen rather than from thermal cracking of kerogen.Ping’an Peng Guoying Sheng Jiamo Fu Zhijun Wu Jigang Jiang 1998Chinese Science Bulletin1998,43,8:1
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