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| 1 | Biomass and carbon dynamics of a tropical mountain rain forest in China显示文摘Biometric inventories for 25 years,from 1983 to 2005,indicated that the Jianfengling tropical mountain rain forest in Hainan,China,was either a source or a modest sink of carbon.Overall,this forest was a small carbon sink with an accumulation rate of(0.56±0.22) Mg C ha-1yr-1,integrated from the long-term measurement data of two plots(P9201 and P8302).These findings were similar to those for African and American rain forests((0.62±0.23) Mg C ha-1yr-1).The carbon density varied between(201.43±29.38) Mg C ha-1 and(229.16±39.2) Mg C ha-1,and averaged(214.17±32.42) Mg C ha-1 for plot P9201.Plot P8302,however,varied between(223.95±45.92) Mg C ha-1 and(254.85±48.86) Mg C ha-1,and averaged(243.35±47.64) Mg C ha-1.Quadratic relationships were found between the strength of carbon sequestration and heavy rainstorms and dry months.Precipitation and evapotranspiration are two major factors controlling carbon sequestration in the tropical mountain rain forest. | CHEN DeXiang1*,LI YiDe1,LIU HePing2,XU Han1,XIAO WenFa3,LUO TuShou1,ZHOU Zhang4 & LIN MingXian1 1Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou 510520,China 2Department of Physics,Atmospheric Science and Geoscience,Jackson State University,MS 39217,USA 3Research Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry,Beijing 100091,China 4Department of Ecology,College of Urban and Environmental Sciences,Peking University,Beijing 100872,China | 2010 | Science China(Life Sciences)2010,53,7: | 20 |
| 2 | The compression of IR spectra by using wavelet neural network显示文摘IR spectra play an important role in determining the structure of compounds qualitatively andquantitatively.In general a great number of data are required to exactly show the features ofthe compounds.Regarding various compounds,there are massive IR spectra.With the basicfeatures of IR spectra being reserved,it is important to compress IR spectra for improving thestorage,index and process of IR spectra.The wavelet neural network(WNN)is a newneural network model based on wavelet analysis.However,its introduction and applica-tion in chemistry have not been reported.In this note,WNN is applied to the compression ofthe IR spectra of polystyrene.The results show that the original spectra can be | Liu, W Li, JP Xiong, JH Pan, ZX Zhang, MS | 1997 | Chinese Science Bulletin1997,42,10: | 8 |
| 3 | A Study of the Characteristics of Consumers' Behavior under the Web Environmen显示文摘The development of Internet has made shopping online possible. But while we are focusing ourselves on the environment design, plan for the information structures and items or business scales, another important factor has been ignored, that is, the changes of the characteristics of consumers behavior under the web environment. Because we are not able to make the exact online marketing strategy according to the changes of consumers behavior, and although many online shops have been opened, we are not able to get big sales. This article emphasises the analysis of the environment for on line transactions, attampts to investigate the basic modes for information movement and on line shopping of those consumers under the web environment, study the influence on consumers brought by Internet, the shopping styles and their characteristics. | LIU Li (Department of Management Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, P.R.China)Biography:\ LIU Li (1958-), male, from Hunan Province, received MS degree in management from Northeast University in 1990, associ | 2001 | The Journal of China Universities of Posts and Telecommunications2001,8,1: | 3 |
| 4 | Knowledge Processing Method of Fault Diagnosis Expert Systems for Letter Sorting Equipment显示文摘Based on the analysis of fault diagnosis knowledge of letter sorting machine, this paper proposes a processing method by which the fault diagnosis knowledge is divided into exact knowledge, inadequate knowledge and fuzzy knowledge. Then their presenting and implementing form in fault diagnosis expert system is discussed and studied. It is proved that the expert system has good feasibility in the field of the diagnosis of letter sorting machine. | LI Dian sheng SUN Wan jun Biography:\ LI Dian sheng (1966-), instructor of Shijiazhuang Postal College, received MS in Shengyang Polytechnic University, majoring in artificial intelligence, maintenance of letter sorting machine. He has published seve | 2001 | The Journal of China Universities of Posts and Telecommunications2001,8,1: | 2 |
| 5 | Overexpression of the rat inducible 70-kda heat stress protein in a transgenic mouse increase the resistance of the heart to ischemic injury 显示文摘 | Marber MS Mestril R Li Shunhua | 1995 | J Clin Invest1995,95,4: | 1 |
| 6 | Muscle ring finger 1, but not muscle ring finger 2, regulates cardiac hypertrophy in vivo显示文摘 | Willis MS Ike C Li L | 2007 | Circ Res2007,100,4: | 1 |
| 7 | GLP-1 receptor stimulation preserves primary cortical and dopaminergic neurons in cellular and rodent models of stroke and Parkinsonism显示文摘 | Li Y Perry T Kindy MS | 2009 | Proc Natl Acad Sci USA2009,106,: | 1 |
| 8 | Synthesis of 6-substituted-3-hydroxy-4(1H)-pyridiones:oxidatin-michael addition of 3-hydroxy-4(1H)-pyidinones显示文摘 | Li MS Gu LQ Huang ZS | 1999 | Tetrahedron1999,55,2: | 1 |
| 9 | Structural requirements for differential sensitivity of KCNQ K+ channels to modulation by Ca2+/calmodulin显示文摘 | Gamper N Li Y Shapiro MS | 2005 | Mol Biol Cell2005,16,: | 1 |
| 10 | Inhibition of sclerostin by monoclonal antibody enhances bone healing and im- proves bone density and strength of nonfractured bones 显示文摘 | Ominsky MS Li C Li X | 2011 | JBone MinerRes2011,26,5: | 1 |
| 11 | A prospective random- ized trial comparing pcrcutancous local ablative therapy and partial hepatectomy for small hepatoccllular carcinoma 显示文摘 | CHEN MS LI JQ ZHENG Y | 2006 | Ann Surg2006,243,3: | 1 |
| 12 | Affordability,accessibility,and accountability:Perceived impacts of the preprimary education vouchers in Hong Kong显示文摘 | LI H WONG MS WANG CX | | 0,,01: | 1 |
| 13 | Evidence that exposure of the telomere 3' overhang sequence induces senescence显示文摘 | Li GZ Eller MS Firoozabadi R | | 0,,: | 1 |
| 14 | Generation of a stable packaging cell line producing high - titer PPT - deleted integration - deficient Ientiviral vectors显示文摘 | Hu P Li Y Sands MS | 2015 | Mol Ther Methods Clin Dev2015,,15: | 1 |
| 15 | Ideal rather than actual body weight should be used to calculate cell dose in allogeneic hematopoietic stem cell transplantation 显示文摘 | Singhal S Gordon LI Tallman MS | 2006 | Bone Marrow Transplant2006,37,11: | 1 |
| 16 | Reelin, a guidance signal for the regeneration of the entorhino-hippocampal path 显示文摘 | Wu P Li MS Yu DM | 2008 | Brain Res2008,1208,: | 1 |
| 17 | Genomic sequence a- nalysis of Epstein - Barr virus strain GD1 from a naso- pharyngeal carcinoma patient 显示文摘 | Zeng MS Li DJ Liu QL | 2005 | JVirol2005,79,15: | 1 |
| 18 | Effects of taurine on aortic rings i-solated from fructose-fed insulin resistance and normal rat aorticrings are different显示文摘 | Xue WX Zhang MS Li J | 2008 | Cardiovasc Drug Ther2008,22,: | 1 |
| 19 | Geomorphic evolution of the Yangtze Gorges and the time of their formation显示文摘 | Xie SY Kuang MS | 2001 | Geomorphology2001,41,23: | 1 |
| 20 | Observing pretibial myxedema in patients with Graves' disease using digital infrared thermal imaging and high-resolution ultrasonography:for better records,early detection,and further investigation显示文摘 | Shih SR Lin MS Li HY | | 0,,04: | 1 |