By solving the basic equations of magnetic field in the anisotropic magnetic mediain which the tensor μik is symmetric,an integral formula for anisotropic vector potential A isobtained.By which the characteristic for...By solving the basic equations of magnetic field in the anisotropic magnetic mediain which the tensor μik is symmetric,an integral formula for anisotropic vector potential A isobtained.By which the characteristic formulae for self and mutual inductances are derived inscalar and tensor forms,and their transformation formula are also derived.Finally,the formulais checked by practical examples.展开更多
A new technology of functionally graded materials(FGM) mould fabricated by plasma spraying and arc spraying was developed. According to applied characteristic of plastic mould, the reasonable coatings of FGM were desi...A new technology of functionally graded materials(FGM) mould fabricated by plasma spraying and arc spraying was developed. According to applied characteristic of plastic mould, the reasonable coatings of FGM were designed and their microstructures were analyzed. At the same time, some key problems were solved including spray mould fabricating, FGM forming and demoulding, etc. The results show that the service performance of the FGM mould is much more excellent than the one composed of the traditional materials, and the life span can also be greatly increased. The technology will have a significant influence on materials development in mould industry.展开更多
This study has investigated the relationship between energy consumption and economic growth in Brazil during the period of 1980-2008. The co-integration test indicates a long-run equilibrium relationship between varia...This study has investigated the relationship between energy consumption and economic growth in Brazil during the period of 1980-2008. The co-integration test indicates a long-run equilibrium relationship between variables, andenergy consumption appears to be real GDP elastic. This elasticity suggests that energy consumption has a great positive influence on changes in income. The causality results from the error correction model reveal a unidirectional short-run causality from energy consumption to economic growth and a bidirectional strong causality between them. These findings suggest that Brazil should adopt a dual strategy of increasing investment in energy infrastructure, and stepping up energy conservation policies to reduce any unnecessary waste of energy, in order to avoid having a negative effect on economic growth by reducing energy consumption. In contrast, energy conservation is expected to increase the efficient use of energy and, therefore, enhance economic growth.展开更多
Since B. Rosenberg first reported that cis-dichlorodiamine platinum （Ⅱ） exhibited a wide spectrum of potent antitumor activity, metal complexes as a new type of antitumor agent has attracted much attention. Cis-Pt...Since B. Rosenberg first reported that cis-dichlorodiamine platinum （Ⅱ） exhibited a wide spectrum of potent antitumor activity, metal complexes as a new type of antitumor agent has attracted much attention. Cis-Pt（NH<sub>3</sub>）<sub>2</sub>Cl<sub>2</sub> has been展开更多
文摘By solving the basic equations of magnetic field in the anisotropic magnetic mediain which the tensor μik is symmetric,an integral formula for anisotropic vector potential A isobtained.By which the characteristic formulae for self and mutual inductances are derived inscalar and tensor forms,and their transformation formula are also derived.Finally,the formulais checked by practical examples.
基金Projects(50175035 50375024) supported by the National Natural Science Foundation of China+1 种基金 Project(E0210024) sup ported by the Natural Science Foundation of Fujian Province of China Project(2002H044) supported by the Program of High Science andTec
文摘A new technology of functionally graded materials(FGM) mould fabricated by plasma spraying and arc spraying was developed. According to applied characteristic of plastic mould, the reasonable coatings of FGM were designed and their microstructures were analyzed. At the same time, some key problems were solved including spray mould fabricating, FGM forming and demoulding, etc. The results show that the service performance of the FGM mould is much more excellent than the one composed of the traditional materials, and the life span can also be greatly increased. The technology will have a significant influence on materials development in mould industry.
文摘This study has investigated the relationship between energy consumption and economic growth in Brazil during the period of 1980-2008. The co-integration test indicates a long-run equilibrium relationship between variables, andenergy consumption appears to be real GDP elastic. This elasticity suggests that energy consumption has a great positive influence on changes in income. The causality results from the error correction model reveal a unidirectional short-run causality from energy consumption to economic growth and a bidirectional strong causality between them. These findings suggest that Brazil should adopt a dual strategy of increasing investment in energy infrastructure, and stepping up energy conservation policies to reduce any unnecessary waste of energy, in order to avoid having a negative effect on economic growth by reducing energy consumption. In contrast, energy conservation is expected to increase the efficient use of energy and, therefore, enhance economic growth.
文摘Since B. Rosenberg first reported that cis-dichlorodiamine platinum （Ⅱ） exhibited a wide spectrum of potent antitumor activity, metal complexes as a new type of antitumor agent has attracted much attention. Cis-Pt（NH<sub>3</sub>）<sub>2</sub>Cl<sub>2</sub> has been
