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- 저자 : Huizhi Cao (검색결과 2 건)
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장혜지;조령 경희대학교 산업관계연구소 2011 産硏論叢 Vol.36 No.-
한중간 FTA에 관한 연구는 2004년 이래 많은 연구가 진행되었다. 한중간 무역에 있어서 전자제품은 막대한 비중을 차지하고 있으며. 주로 강력한 경쟁력과 상호보완성으로 인하여 치열한 경쟁을 겪었다. 본 연구는 관세면제가 실시되는 경우에 양국의 전자제품의 무역창조효과를 예측하는데 있다. 본 연구에서는 계산 가능한 일반균형 모형(CGE model)을 사용하고 있으며 이모형은 경험적 분석의 유용한 방법론 중에 하나이다. 양국의 현재의 무역관계를 감안하여 본 연구는 장차 양국간 FTA체결을 위한 중국 전자산업에 대한 정책 권고도 제시하고 있다. Tremendous Progress on study of FTA between China and the Republic of Korea has been made since 2004. Electronic products receive a large share in the foreign trade between China and the Republic of Korea, and they have experienced severe competition mainly due to strong competitiveness and mutual complementarity in their trade. This study is primarily to concern with the forecast of trade creation effects of electronic products of both countries in case of tariff exemption by utilizing a computable general equilibrium (CGE) model, which is a useful methodology of empirical analysis. In light of current trade relationship between two countries, the study also proposes policy recommendation of the Chinese electronic industry for the FTA conclusion between two countries in the future.
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Guanfu Liu,Mengying Li,Guosheng Li,Zhiyong Li,Ailian Liu,Renwang Pu,Huizhi Cao,Yijun Liu 대한영상의학회 2018 Korean Journal of Radiology Vol.19 No.1
Objective: To exploit material decomposition analysis in dual-energy spectral computed tomography (CT) to assess the blood supply status of the ground-glass opacity (GGO) in lungs. Materials and Methods: This retrospective study included 48 patients with lung adenocarcinoma, who underwent a contrast-enhanced dual-energy spectral CT scan before treatment (53 GGOs in total). The iodine concentration (IC) and water content (WC) of the GGO, the contralateral and ipsilateral normal lung tissues were measured in the arterial phase (AP) and their differences were analyzed. IC, normalized IC (NIC), and WC values were compared between the pure ground-glass opacity (pGGO) and the mixed ground-glass opacity (mGGO), and between the group of preinvasive lesions and the minimally invasive adenocarcinoma (MIA) and invasive adenocarcinoma (IA) groups. Results: The values of pGGO (IC = 20.9 ± 6.2 mg/mL and WC = 345.1 ± 87.1 mg/mL) and mGGO (IC = 23.8 ± 8.3 mg/mL and WC = 606.8 ± 124.5 mg/mL) in the AP were significantly higher than those of the contralateral normal lung tissues (IC = 15.0 ± 4.9 mg/mL and WC = 156.4 ± 36.8 mg/mL; IC = 16.2 ± 5.7 mg/mL and WC = 169.4 ± 41.0 mg/mL) and ipsilateral normal lung tissues (IC = 15.1 ± 6.2 mg/mL and WC = 156.3 ± 38.8 mg/mL; IC = 15.9 ± 6.0 mg/mL and WC = 174.7 ± 39.2 mg/mL; all p < 0.001). After normalizing the data according to the values of the artery, pGGO (NIC = 0.1 and WC = 345.1 ± 87.1 mg/mL) and mGGO (NIC = 0.2 and WC = 606.8 ± 124.5 mg/mL) were statistically different (p = 0.049 and p < 0.001, respectively), but not for the IC value (p = 0.161). The WC values of the group with preinvasive lesions and MIA (345.4 ± 96.1 mg/mL) and IA (550.1 ± 158.2 mg/mL) were statistically different (p < 0.001). Conclusion: Using dual-energy spectral CT and material decomposition analysis, the IC in GGO can be quantitatively measured which can be an indicator of the blood supply status in the GGO.
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