In 2024,the Center for Cambodian Studies at Beijing Foreign Studies University(BFSU)and the Institute for International Studies and Public Policy at the Royal University of Phnom Phen(RUPP)conducted a survey on how yo...In 2024,the Center for Cambodian Studies at Beijing Foreign Studies University(BFSU)and the Institute for International Studies and Public Policy at the Royal University of Phnom Phen(RUPP)conducted a survey on how young Cambodians view Cambodia’s people-to-people ties with China.Echoing the celebrations of 2024 Cambodia-China People-to-People Exchange Year,the two institutions sampled different groups of people ranging from students to civil society representatives,taking a deep dive into their views on intercultural connections between Cambodia and China.This survey collected 2,200 valid responses,an almost 6.5-fold increase compared to a previous survey done by BFSU and RUPP in 2021.展开更多
The accuracy of the background optical properties has a considerable effect on the quality of reconstructed images in near-infrared functional brain imaging based on continuous wave diffuse optical tomography（CW-DOT...The accuracy of the background optical properties has a considerable effect on the quality of reconstructed images in near-infrared functional brain imaging based on continuous wave diffuse optical tomography（CW-DOT）. We propose a region stepwise reconstruction method in CW-DOT scheme for reconstructing the background absorption and reduced scattering coefficients of the two-layered slab sample with the known geometric information. According to the relation between the thickness of the top layer and source– detector separation, the conventional measurement data are divided into two groups and are employed to reconstruct the top and bottom background optical properties, respectively. The numerical simulation results demonstrate that the proposed method can reconstruct the background optical properties of two-layered slab sample effectively. The region-of-interest reconstruction results are better than those of the conventional simultaneous reconstruction method.展开更多
文摘In 2024,the Center for Cambodian Studies at Beijing Foreign Studies University(BFSU)and the Institute for International Studies and Public Policy at the Royal University of Phnom Phen(RUPP)conducted a survey on how young Cambodians view Cambodia’s people-to-people ties with China.Echoing the celebrations of 2024 Cambodia-China People-to-People Exchange Year,the two institutions sampled different groups of people ranging from students to civil society representatives,taking a deep dive into their views on intercultural connections between Cambodia and China.This survey collected 2,200 valid responses,an almost 6.5-fold increase compared to a previous survey done by BFSU and RUPP in 2021.
基金supported by the National Natural Science Foundation of China(Nos.81271618 and 81371602)the Tianjin Municipal Government of China(Nos.12JCQNJC09400 and 13JCZDJC28000)the Research Fund for the Doctoral Program of Higher Education of China(No.20120032110056)
文摘The accuracy of the background optical properties has a considerable effect on the quality of reconstructed images in near-infrared functional brain imaging based on continuous wave diffuse optical tomography（CW-DOT）. We propose a region stepwise reconstruction method in CW-DOT scheme for reconstructing the background absorption and reduced scattering coefficients of the two-layered slab sample with the known geometric information. According to the relation between the thickness of the top layer and source– detector separation, the conventional measurement data are divided into two groups and are employed to reconstruct the top and bottom background optical properties, respectively. The numerical simulation results demonstrate that the proposed method can reconstruct the background optical properties of two-layered slab sample effectively. The region-of-interest reconstruction results are better than those of the conventional simultaneous reconstruction method.
