In this paper, we use 2002-2008 International Standard Industry Classification two-digit bilateral trade paneI data for manufacturing industries in China and the OECD countries to test for the existence of home market...In this paper, we use 2002-2008 International Standard Industry Classification two-digit bilateral trade paneI data for manufacturing industries in China and the OECD countries to test for the existence of home market effects. We find that significant home market effects exist in 8 out of 12 industries. These industries include the food, beverage and tobacco industry, wood products, the paper products and printing industry, chemical products, other non- metallic mineral products, machinery and equipment, transport equipment, and miscellaneous products and waste resources recycling industry. Textile, clothing and leather manufacturing, oil refining and nuclear fuel manufacturing, rubber andplastics, and basic metals and fabricated metal products industries do not exhibit home market effects. Indeed, strong reverse home market effects occur for oil refining and nuclear fuel manufacturing and for the rubber and plastics industry. The empirical results reveal that certain industries benefit from new export opportunities due to the expansion of domestic demand in China.展开更多
The toxic organic dye contaminants in wastewater are extremely harmful to the ecosystem.Surface enhanced Raman scattering(SERS) is a technique with high sensitivity and chemical specificity which fulfills the requirem...The toxic organic dye contaminants in wastewater are extremely harmful to the ecosystem.Surface enhanced Raman scattering(SERS) is a technique with high sensitivity and chemical specificity which fulfills the requirements for monitoring dye contaminants in wastewater.However,as one of the common dye contaminants,methyl orange(MO) has very weak affinity to metallic surfaces and is difficult to be detected by SERS at low concentrations.Therefore,a new type of SERS substrate with Ag nanoparticle monolayer functionalized by mono-6-deoxy-6-thio-β-cyclodextrin(β-CD-SH) was prepared to efficiently capture and detect MO in wastewater with a limit of detection of 5×10^(-7) mol/L.The hydrophobic cavity of β-CD is responsible for the efficient trap and enrichment of MO on the Ag NPs surface,achieving a strong SERS signal of MO at low concentrations and at different pH values.This study provides new insight into designing a well-performed adsorbent for the capture and detection of organic contaminants.展开更多
基金supported by a grant from the Humanities and Social Science Research Fund of the Bureau of Education(for"expansion of domestic demand and home market effects of foreign trade in China") (Project No.08JA790023)
文摘In this paper, we use 2002-2008 International Standard Industry Classification two-digit bilateral trade paneI data for manufacturing industries in China and the OECD countries to test for the existence of home market effects. We find that significant home market effects exist in 8 out of 12 industries. These industries include the food, beverage and tobacco industry, wood products, the paper products and printing industry, chemical products, other non- metallic mineral products, machinery and equipment, transport equipment, and miscellaneous products and waste resources recycling industry. Textile, clothing and leather manufacturing, oil refining and nuclear fuel manufacturing, rubber andplastics, and basic metals and fabricated metal products industries do not exhibit home market effects. Indeed, strong reverse home market effects occur for oil refining and nuclear fuel manufacturing and for the rubber and plastics industry. The empirical results reveal that certain industries benefit from new export opportunities due to the expansion of domestic demand in China.
基金financial support from the National Natural Science Foundation of China(Nos.51601098,21775074 and 21861132016)the Natural Science Foundation of Tianjin(No.17JCQNJC05400)the National Key Research and Development Project of China(Nos.2017YFA0206702 and 2016YFB0901502)。
文摘The toxic organic dye contaminants in wastewater are extremely harmful to the ecosystem.Surface enhanced Raman scattering(SERS) is a technique with high sensitivity and chemical specificity which fulfills the requirements for monitoring dye contaminants in wastewater.However,as one of the common dye contaminants,methyl orange(MO) has very weak affinity to metallic surfaces and is difficult to be detected by SERS at low concentrations.Therefore,a new type of SERS substrate with Ag nanoparticle monolayer functionalized by mono-6-deoxy-6-thio-β-cyclodextrin(β-CD-SH) was prepared to efficiently capture and detect MO in wastewater with a limit of detection of 5×10^(-7) mol/L.The hydrophobic cavity of β-CD is responsible for the efficient trap and enrichment of MO on the Ag NPs surface,achieving a strong SERS signal of MO at low concentrations and at different pH values.This study provides new insight into designing a well-performed adsorbent for the capture and detection of organic contaminants.
