AIM: To investigate the efficacy of transcatheter arterial chemoembolization (TACE) combined with radiotherapy for unresectable large hepatocellular carcinoma (HCC).METHODS: From June 1994 to June 1999, a total of 76p...AIM: To investigate the efficacy of transcatheter arterial chemoembolization (TACE) combined with radiotherapy for unresectable large hepatocellular carcinoma (HCC).METHODS: From June 1994 to June 1999, a total of 76patients with large unresectable HCC were treated with TACE followed by external-beam irradiation. 89 patients with large HCC, who underwent TACE alone during the same period,served as the control group. Clinical features, therapeutic modalities, acute effects and survival rates were analyzed and compared between TACE plus irradiation group and TACE alone group. A multivariate analysis of nine clinical variables and one treatment variable (irradiation) was performed by the Cox proportional hazards model.RESULTS: The clinical features and therapeutic modalities except irradiation between the two groups were comparable (P＞0.05). The objective response rate (RR) in TACE plus irradiation group was higher than that in TACE alone group (47.4 % vs28.1%, P＜0.05). The overall survival rates in TACE plus irradiation group (64.0 %, 28.6 %, and 19.3 %at 1, 3, 5 years, respectively) were significantly higher than those in TACE alone group (39.9 %, 9.5 %, and 7.2%,respectively, P=0.0001). Cox proportional hazards model analysis showed that tumor extension and Child grade were significant and were independent negative predictors of survival, while irradiation was an independent positive predictor of survival.CONCLUSION: TACE combined with radiotherapy is more effective than TACE alone, and is a promising treatment for unresectable large HCC.展开更多
The dynamic mechanical properties of open-cell aluminum alloy foams with different relative densities and cell sizes have been investigated by compressive tests. The strain rates varied from 700 s-1 to 2600 s-1. The e...The dynamic mechanical properties of open-cell aluminum alloy foams with different relative densities and cell sizes have been investigated by compressive tests. The strain rates varied from 700 s-1 to 2600 s-1. The experimental results showed that the dynamic compressive stress-strain curves exhibited a typical three-stage behavior: elastic, plateau and densification. The dynamic compressive strength of foams is affected not only by the relative density but also by the strain rate and cell size. Aluminum alloy foams with higher relative density or smaller cell size are more sensitive to the strain rate than foams with lower relative density or larger cell size.展开更多
Profile:The Youjia'ao Community Center project in Nanjing represents a pioneering revitallzatlon practice of the Nanjing Compressor Factory industrial heritage,exploring an innovative renewal model that integrates...Profile:The Youjia'ao Community Center project in Nanjing represents a pioneering revitallzatlon practice of the Nanjing Compressor Factory industrial heritage,exploring an innovative renewal model that integrates industrial relics with community life.Designated as a CategoryⅡIndustrial Heritage in Nanjing,the factory site retains its original industrial typology and distinctive architectural features,Including arched curved space truss structures.展开更多
文摘AIM: To investigate the efficacy of transcatheter arterial chemoembolization (TACE) combined with radiotherapy for unresectable large hepatocellular carcinoma (HCC).METHODS: From June 1994 to June 1999, a total of 76patients with large unresectable HCC were treated with TACE followed by external-beam irradiation. 89 patients with large HCC, who underwent TACE alone during the same period,served as the control group. Clinical features, therapeutic modalities, acute effects and survival rates were analyzed and compared between TACE plus irradiation group and TACE alone group. A multivariate analysis of nine clinical variables and one treatment variable (irradiation) was performed by the Cox proportional hazards model.RESULTS: The clinical features and therapeutic modalities except irradiation between the two groups were comparable (P＞0.05). The objective response rate (RR) in TACE plus irradiation group was higher than that in TACE alone group (47.4 % vs28.1%, P＜0.05). The overall survival rates in TACE plus irradiation group (64.0 %, 28.6 %, and 19.3 %at 1, 3, 5 years, respectively) were significantly higher than those in TACE alone group (39.9 %, 9.5 %, and 7.2%,respectively, P=0.0001). Cox proportional hazards model analysis showed that tumor extension and Child grade were significant and were independent negative predictors of survival, while irradiation was an independent positive predictor of survival.CONCLUSION: TACE combined with radiotherapy is more effective than TACE alone, and is a promising treatment for unresectable large HCC.
基金This work was supported by the Natural Science Foundation of CAEP under grant No.10076020.
文摘The dynamic mechanical properties of open-cell aluminum alloy foams with different relative densities and cell sizes have been investigated by compressive tests. The strain rates varied from 700 s-1 to 2600 s-1. The experimental results showed that the dynamic compressive stress-strain curves exhibited a typical three-stage behavior: elastic, plateau and densification. The dynamic compressive strength of foams is affected not only by the relative density but also by the strain rate and cell size. Aluminum alloy foams with higher relative density or smaller cell size are more sensitive to the strain rate than foams with lower relative density or larger cell size.
文摘Profile:The Youjia'ao Community Center project in Nanjing represents a pioneering revitallzatlon practice of the Nanjing Compressor Factory industrial heritage,exploring an innovative renewal model that integrates industrial relics with community life.Designated as a CategoryⅡIndustrial Heritage in Nanjing,the factory site retains its original industrial typology and distinctive architectural features,Including arched curved space truss structures.
