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您的检索式：作者名="Yiyuan Hong"
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| 1 | NOVEL MUR CONDITION IN FREQUENCY DOMAIN AND ITS APPLICATION显示文摘A novel finite-difference (FD) approximation in frequency-domain for the Mur boundary condition is presented in this paper. Combined with the FD equations derived for inhomogeneous anisotropic media, this boundary condition is convenient and effective to be applied to the EM scattering by electrically large objects of complex media. Both the memory requirement and the computing time are dramatically saved, compared with the MM, with the compressed storage technique. For the cases of different media, RCS of circular and rectangular cylinders are computed. Good agreement is obtained between the results by this method and those available. | Chen Jun Hong Wei Chen Yiyuan (State Key Lab. of Millimeter Waves, Dept. of Radio Engineering, Southeast University, Nanjing 210096) | 1996 | Journal of Electronics(China)1996，13，3： | 1 |
| 2 | Ecosystem service bundle index construction,spatiotemporal dynamic display,and driving force analysis显示文摘Introduction:Existing studies on ecosystem service relationships are mainly qualitative or semi-quantitative assessments,but lack of quantitative exploration of aggregated ecosystem services and their influencing factors.We mapped the distributions of 12 ecosystem services of Zhejiang Province in 2000 and 2015 at the district and county level,analyzed their relationships using Spearman’s correlation analysis,constructed ecosystem service bundle index(ESBI)for each district and county by structural equation model,and then through multiple linear regression,we explored factors associated with ESBI variations.Outcomes:Our results showed that(1)most ecosystem services were spatially clustered.There were synergies between individual ecosystem services in categories of provisioning and regulating services,respectively;(2)our proposed ESBI index system consists of overall index and sub-indices of provisioning,regulating,and cultural services.The higher the ESBI value,the more important the corresponding place for multiple aggregated ecosystem service provision.Compared to 2000,ESBI in 2015 distributed more unevenly,and the average dropped by 3.10%;and(3)the increase of ESBI was associated with its initial value,and four socioeconomic and natural factors;the decrease of ESBI was influenced by the initial value and six key socioeconomic factors.Discussion and Conclusion:Our proposed ESBI system has several advantages(e.g.,scale free,flexible weighting,quantitative and continuous indices for further analyses,and alternative non-monetary solution)in understanding and managing relationships among multiple ecosystem services. | Yiyuan Hong Qian Ding Ting Zhou Lingqiao Kong Meiye Wang Jianying Zhang Wu Yang | 2020 | Ecosystem Health and Sustainability2020，6，1： | 0 |
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