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57篇 您的检索式:作者名="LuoPing"
    题名 作者 年代 出处 被引量
1Microstructure and mechanical properties of hypereutectic Al-Si alloy modified with Cu-P显示文摘The microstructure and mechanical properties of Al-14.6Si castings modified by Cu-P master alloy under different conditions were studied with optical microscope(OM) and mechanical testing and simulation(MTS).The results indicate that the Cu-P master alloy possesses not only obvious modification effect,but also longevity effect with more than 8 h on the hypereutectic Al-Si alloy.It is shown from thermal calculation,scanning electron microscope(SEM),and energy dispersive analysis of X-rays(EDAX) that the modification mechanism of Cu-P on primary silicon in the castings is heterogeneous nucleation around AlP particles.The Cu-P master alloy has no or little modifying effect on eutectic silicon,even though it has obvious modification on primary silicon in the castings.This may be because of the fast transformation of eutectic silicon at a very narrow temperature,which will notably weaken the role of AlP particles as heterogeneous nuclei for eutectic silicon.ZHANG Henghua DUAN Haili SHAO Guangjie XU Luoping 2008Rare Metals2008,27,1:35
2Modification mechanism of cerium on the Al-18Si alloy显示文摘在不同扔的状态下面的高级低共熔体的 Al-Si 合金上的稀土元素铈(Ce ) 的效果被光显微镜和量的图象分析学习了。尺寸和在铸造物的主要的硅的数量随 melt 的增加的 Ce 的增加减少,这被发现。好 facetted 形状的从分叉的形状的同时主要的硅变化。尽管在铸造物的最容易溶解的硅上的修正也随 melt 的增加的 Ce 的增加改善,离开主要的硅的最容易溶解的硅上的修正的效果在到主要的硅的最容易溶解的硅结束上是比那更明显的。修正机制借助于扫描详细被分析电子显微镜与精力装备了 X 光检查和热力学分析的散分析,它在反应和反应平衡的标准吉布斯精力在变化上包括了分析。ZHANG Henghua DUAN Haili SHAO Guangjie XU Luoping YIN Junlin YAN Biao 2006Rare Metals2006,25,1:23
3Validation of an agricultural non-point source(AGNPS)pollution model for a catchment in the Jiulong River watershed,China显示文摘测试并且评估农业非点来源(AGNPS ) 的这研究为 Wuchuan 集水的模型,在 Jiulong 河分水岭的一个典型农业区域,福建省, China.The AGNPS 模型在十暴风雨上与观察数据为学习区域被校准并且验证。当二暴风雨上的数据被用于模型的确认时,在 2002 的八暴风雨上的数据被用于刻度。就在一个长期的系列上的水质数据的缺乏而言,一个新奇方法,把内部嵌套的集水与它的包围集水作比较,被用来补充不太长期的系列数据。AGNPS 模型的双刻度和确认被这比较获得。结果显示相关系数为流量是 0.99 和 0.98,分别地, 0.94 和 0.95 大集水和小集水为山峰流量评价并且 0.76 为小集水的沉积仅仅。每个相关系数为为二集水的一样的事件是同类的。与沉积收益和微粒磷的例外,山峰流量率和另外的营养素很好被预言。敏感分析证明土壤保持服务曲线数字和降雨数量是最敏感的参数,它导致了高产量 variations.Erosivity,另外的参数几乎没在水文学和优秀产量上有小影响。LIU Jianchang ZHANG Luoping ZHANG Yuzhen HONG Huasheng DENG Hongbing 2008Journal of Environmental Sciences2008,20,5:13
4A STUDY ON CELLULAR AUTOMATA BASED ON RELATIONAL DATABASES AND SPATIO-TE MPORAL SIMULATIONS OF CULTURE DIFFUSION显示文摘This paper presents a development o f the extended Cellular Automata9CA),based on relational databases(RDB),to model dynamic interactions amon g spatial objects.The integration o f Geographical Information System(GIS)and CA has the great advantage of simu lationg geographical processes.But standard CA has some restrictions i n cellular shape and neighbourhood and neighbour rules,which restrict the CA’ s ability to simulate complex,real world environ-ments.This paper discusses a cell’ s spatialrelationbasedonthe spatialobject’ s geometricalandmon -geometricalc haracter-istics,and extends the cell’ s neighbour definition,and considers that the cell’ s neighbour lies in the forms of not on ly spa-tial adjacency but also attribute co rrelation.This paper then puts forw ard that spatial relations between t wo different cells can be divided into three types,including spatial adjacency,neighbour hood and complicated separation.Ba sed on tradition-al ideas,it is impossible to settle CA’ s restrictions completely.RDB -based CA is an academic experiment,in which some fields ard desighed to describe the essential information needed to define and select a cell’ s neighbour.The culture innovation diffusion system has mul tiple forms of space diffusion and in herited characteristics that the RD B -based CA is capable of simulating more effectiv ely.Finally this paper details a successful case study on the diffusion o f fashion wear trends.Compared to the original CA,the RDB -based CA is a more natural and efficient representation of human k nowl-edge over space,and is an effective t ol in simulation complex systems that have multiple forms of spatial diff usion.MICHAELGallagher NIUHui-en LUOPing DUQing-yun HESu-fang LISen 2002Chinese Geographical Science2002,12,4:4
5Definitions and progress of ecosystem health and ecological security显示文摘Along with industrial development, adverse impacts on the natural environment become more serious, and the states of ecosystem health and ecological security have also deteriorated. As the basic needs for human survival, ecosystem health and ecological security possess very important meanings. Therefore, ecosystem health and ecological security have become research hot topics in recent decades. This paper reviewed the developments of definitions and applications of ecosystem health and ecological security, and found that the research on ecosystem health had achieved a lot. However, the research on ecological security was still relatively undeveloped. Moreover, there are also some confusion between the concepts of ecosystem health and ecological security. We consider that ecosystem health indicates the status of the ecosystem in normal conditions, whereas, ecological security indicates the capabilities of an ecosystem to react to external accidents or extremely adverse effects. An ecosystem which is healthy does not mean that it is secure. However, the ecological security requires an ecosystem to possess the capacity for integrity against any risk, and ecosystem health is the precondition to ecological security.Weng Changhua Zhang Luoping David Klumpp 2006Ecological Economy2006,2,3:4
6Shift visual cryptography scheme of two secret images显示文摘A new visual cryptography scheme of two secret images, which is named the shift visual cryptography of two secret images, is given. The compound function family of a general construction model is also introduced. The uniqueness and validity of this model are proved, and the minimum rows and columns for realizing the scheme are obtained. Compared with visual cryptography of one secret image, the shift visual cryptography scheme can share two secret images with the same size of pixels expansion without losing the contrast. It has randomness and various forms, and furthermore, we can also visually recover two secret images even if the two shares are different in form and color.WANGDaoshun LUOPing YANGLu QIDongxu DAIYiqi 2003Progress in Natural Science:Materials International2003,13,6:2
7Estimating the ecosystem service losses from proposed land reclamation projects:A case study in Xiamen显示文摘Wang Xuan Chen Weiqi Zhang Luoping 0,,:1
8Heavy metal contamination in western Xiamen Bay sediments and its vicinity, China显示文摘Luoping Zhang Xin Ye Huan Feng Youhai Jing Tong Ouyang Xingtian Yu Rongyuan Liang Chengtie Gao Weiqi Chen 2007Marine Pollution Bulletin2007,,7:1
9Plasma basic fibroblastgrowth factor is corrected with plasminogen activatorinhibitor-1 concentration in adults from the Veterans AffairsDiabetes Trial显示文摘Zimering MB Anderson RJ LuoP 2008Metab2008,57,11:1
10Valuing the effects of hydropower development on watershed ecosystem services: Case studies in the Jiu- long River Watershed, Fujian Province, China显示文摘WANG Guihua FANG Qinhua ZHANG Luoping 2010Es- tuarine Coastal and Shelf Science2010,86,3:1
11Environmental fate and chemistry of organic pollutants in the sediment of Xiamen and Victoria Harbors显示文摘Hong Huasheng Xu Li Zhang Luoping 1995Mar Pollut Bull1995,31,:1
12AFLP analy- sis and zebra disease resistance identification of 40 sisal genotypes in China显示文摘Gao Jianming Luoping Guo Chaoming 2012Molecular Bi- ology Reports2012,39,5:1
13Reproductive and developmental toxicity of formaldehyde: A systematic review显示文摘Anh Duong Craig Steinmaus Cliona M. McHale Charles P. Vaughan Luoping Zhang 2011Mutation Research-Reviews in Mutation Research2011,,3:1
14Environmental fate and chemistry of organic pollutants in the sediment of Xiamen and Victoria Harbors 显示文摘Hong Huasheng Xu Li Zhang Luoping 1995Marine Pollution Bulletin1995,31,:1
15BiomassandnitrogenresponsetograzingintensityinanalpinemeadowontheEasternTibetanPlateau显示文摘GaoY H luoP WuN 2007PolishJournalofEcology2007,53,:1
16Heavy metal contamination in western Xiamen Bay sediments and its vicinity, China 显示文摘Zhang Luoping Ye Xin Feng Huan J 2007Marine Pollution Bulletin2007,54,:1
17The treatment of tacrolimus in idiopathic membranous nephropathy [J]显示文摘SUNGD XUZH LUOP etal 中国老年学杂志0,,:1
18Shallow‐lacustrine sand‐rich deltaic depositional cycles and sequence stratigraphy of the Upper Triassic Yanchang Formation, Ordos Basin, China显示文摘ZouCaineng ZhangXingyang LuoPing WangLan LuoZhong LiuLiuhong 2010Basin Research2010,,1:1
19Heavy metal con- tamination in western Xiamen Bay sediments and its vicinity, Chi- na显示文摘ZHANG Luoping YE Xin FENG Huan 2007Mar Pollut Bull2007,54,7:1
20Residue levels of HCHs, DDTs and PCBs in shellfish from coastal areas of east Xiamen Island and Minjiang Estuary, China显示文摘Weiqi Chen Luoping Zhang Li Xu Xinhong Wang Liyu Hong Huasheng Hong 2002Marine Pollution Bulletin2002,,1:1
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