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24篇 您的检索式:作者名="Dingjiang"
    题名 作者 年代 出处 被引量
1The Property of Solution of a Nonstationary Forest Evolution SystemWANG Dingjiang Department of Mathematics, Pingdingshan Teacher’s College, He’nan 467000ZHANG Yufeng Department of Mathematics, Yanbian Teacher’s College, Jilin 133000 1993Systems Science and Systems Engineering1993,3,3:23
2A Nonlinear Age-Structured Forest EvolutionSystemWANG Dingjiang(Pingdingshan Teacher’s College,Henan,467000,P.R.C) 1994Systems Science and Systems Engineering1994,4,4:7
3Relationship between catchment characteristics and nitrogen forms in Cao-E River Basin, Eastern China显示文摘The distribution of different nitrogen forms and their spatial and temporal variations in different pollution types of tributaries or reaches were investigated. Based on the catchments characteristics the tributaries or reaches can be classified into 4 types, including headwater in mountainous areas (type I), agricultural non-point source (NPS) pollution in rural areas (type II), municipal and industrial pollution in urban areas (type III), and combined pollution in main stream (type IV). Water samples were collected monthly from July 2003 to June 2006 in the Cao-E River Basin in Zhejiang, eastern China. The concentrations of NO3--N, NH4+-N, and total nitrogen (TN) were measured. The mean concentrations of NO3--N were decreased in the sequence type IV > type II> type III > type I, whereas, NH4+-N, total organic nitrogen (TON), and TN were in the sequence: type III > type IV > type II> type I. In headwater and rural reaches, CNO3--N was much higher than CNH+4-N. In urban reaches, TON and NH4+-N were the main forms, accounting for 54.7% and 32.1% of TN, respectively. In the whole river system, CNH4+-N decreased with increasing distance from cities, and CNO3--N increased with the increasing area of farmland in the catchments. With increased river flow, CNO3--N increased and CNH4+-N decreased in all types of reaches, while the variations of CTON and CTN were different. For TN, the concentration may be decreased with the increase of river flow, but the export load always increased.JIN Shuquan LU Jun CHEN Dingjiang SHEN Yena SHI Yiming 2009Journal of Environmental Sciences2009,21,4:4
4Pseudo-almost periodic solution for impulsive hematopoiesis model with infinite delays and linear harvesting term显示文摘Zhinan Xia Dingjiang Wang 2016International Journal of Biomathematics2016,9,5:2
5Eco-Industry: A New Pattern for Industrial Development显示文摘Eco-industry is a new pattern for industrial development. This paper bnefly reviews the progress of eco-industry. The research work of Center for Industrial Ecology, Chemical Engineering Department, Tsinghua University is well introduced. Several academic issues that need further research are suggested from a system engineering point of view.Li Yourun Hu Shanying Shen Jingzhu Chen Dingjiang(Center for Industrial Ecology, Chemical Engineering Department, Tsinghua University, Beijing 100084) 2003Science Foundation in China2003,11,2:2
6Exergy analysis on eco-industrial systems显示文摘Exergy analysis of eco-industrial systems reflects the thermodynamic characteristics of resource utilization by studying complicated material flow patterns to an industrial system. Different indicators based on exergy analysis are presented, such as system exergy depletion index, cycling ratio of material exergy, etc. which can be used to evaluate the efficiency of resource utilization and the environmental potential effect. The interrelations of these exergy indicators and their interpretation on industrial ecology are further discussed. Finally, the result of case study suggests effectiveness of exergy analysis methods and practicability of these exergy estimate indices.YANG Li HU Shanying CHEN Dingjiang ZHANG Dawei 2006Science China Chemistry2006,49,3:1
7An As- sessment of the Energy-saving Potential in China's Petroleum Refining Industry from a Technical Perspective显示文摘LIU Xiaoyu CHEN Dingjiang ZHANG Wenjun 2013Energy2013,59,12:1
8Evalua- tion of the tire industry of China based on physical input- output analysis 显示文摘Yang Ning Chen Dingjiang Hu Shanying 2010Journal of Industrial Ecology2010,14,3:1
9Technoeconomic assessment of China's indirect coal liquefaction projects with different CO2 capture alternatives显示文摘Zhou Wenji Zhu Bing Chen Dingjiang 0,,11:1
10A Bayesian approach for calculating variable total maximum daily loads and uncertainty assessment 显示文摘CHEN Dingjiang DAHLGREN R A S/dEN Yena 2012Science of the Total Environment2012,430,:1
11Explicit and exact travelling wave solutions for the generalized derivative Schrdinger equation显示文摘HUANG Dingjiang LI Desheng ZHANG Hongqing 2007Chaos Solitons&Fractals2007,31,3:1
12Benthic nutrient fluxes in the intertidal flat within the Changjiang (Yangtze River) Estuary显示文摘In an annual cycle from March 2005 to February 2006, benthic nutrient fluxes were measured monthly in the Dongtan intertidal flat within the Changjiang (Yangtze River) Estuary. Except for NH4+, there always showed high fluxes from overlying water into sediment for other four nutrients. Sediments in the high and middle marshes, covered with halophyte and consisting of macrofauna, demonstrated more capabilities of assimilating nutrients from overlying water than the low marsh. Sampling seasons and nutrient concentrations in the overlying water could both exert significant effects on these fluxes. Additionally, according to the model provided by previous study, denitrifica- tion rates, that utilizing NO3- transported from overlying water (DW) in Dongtan sediments, were estimated to be from -16 to 193 μmol·h-1·m-2 with an average value of 63 μmol·h-1·m-2 (n=18). These estimated values are still un- derestimates of the in-situ rates owing to the lack of consideration of DN, i.e., denitrification supported by the local NO3- production via nitrification.GAO Lei LI Daoji WANG Yanming YU Lihua KONG Dingjiang LI Mei LI Yun FANG Tao 2008Chinese Journal Of Geochemistry2008,27,1:1
13Eco-efficiency trends in China,1978-2010:Decoupling environmental pressure from economic growth显示文摘Yu Yadong Chen Dingjiang Zhu Bing Hu Shanying 2013Ecological Indicators2013,24,:1
14Explicit and exact travelling wave solutions for the generalized derivative equation显示文摘Huang Dingjiang Li Desheng Zhang Hongqing 2007Chaos Solitons and Fractals2007,31,:1
15Spatio-temporal variations of nitrogen in an agricultural watershed in eastern China: Catchment export, stream attenuation and discharge显示文摘Dingjiang Chen Jun Lu Yena Shen Dongqin Gong Ouping Deng 2011Environmental Pollution2011,,10:1
16Group classification of general KdV type nonlinear evolution equation 显示文摘Huang Dingjiang Zhang Hongqing 2009Appl Math Mech2009,30,3:1
17An inversed Bayesian modeling approach for estimating nitrogen export coefficients and uncertainty assessment in an agricultural watershed in eastern China显示文摘Jun Lu Dongqin Gong Yena Shen Mei Liu Dingjiang Chen 2013Agricultural Water Management2013,,:1
18A nonliear forest evolution equation显示文摘Wang Dingjiang 1994Journal of Systems Science and Systems Engineeing1994,3,4:1
19Decontamination of anaerobically digested slurry in a paddy field ecosystem in Jiaxing region of China显示文摘Jun Lu Lina Jiang Dingjiang Chen Koki Toyota P. James Strong Hailong Wang Tadashi Hirasawa 2011Agriculture, Ecosystems and Environment2011,,1:1
20CO 2 emissions in calcium carbide industry: An analysis of China’s mitigation potential显示文摘Xiaoyu Liu Bing Zhu Wenji Zhou Shanying Hu Dingjiang Chen Charla Griffy-Brown 2011International Journal of Greenhouse Gas Control2011,,5:1
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