Clinotyrolite is a mineral discovered by Ma et al. in 1980. It is a hydrous copperarsenate and similar to tyrolite in both composition and structure. Its structureformula is Cu<sub>9</sub>Ca<sub>2<...Clinotyrolite is a mineral discovered by Ma et al. in 1980. It is a hydrous copperarsenate and similar to tyrolite in both composition and structure. Its structureformula is Cu<sub>9</sub>Ca<sub>2</sub>[（As, S）O<sub>4</sub>]（OH, O）<sub>10</sub>·10H<sub>2</sub>O. Because of a group of perfect展开更多
In this paper, we show that if V0 is an isometric mapping from the unit sphere of an AL-space onto the unit sphere of a Banach space E, then V0 can be extended to a linear isometry defined on the whole space.
Thin films of nanostructured α-FeOwith thickness of 1 56,203 and 251 nm were deposited by successive ionic layer adsorption and reaction(SILAR) method onto glass substrates using FeCl-6HO and NaOH as cationic and ani...Thin films of nanostructured α-FeOwith thickness of 1 56,203 and 251 nm were deposited by successive ionic layer adsorption and reaction(SILAR) method onto glass substrates using FeCl-6HO and NaOH as cationic and anionic precursors.The X-ray diffraction studies revealed that,α-FeOthin films are nanocrystalline in nature with rhombohedral structure.The morphological properties were investigated by field emission scanning electron and atomic force microscopy.The optical studies showed that α-FeOexhibits direct as well as indirect optical band gap energy.The electrical resistivity of α-FeOat 305 K decreases from 11.76×102 to9.46 × 10~2 Ω cm as film thickness increases from 156 to 251 nm.The thermo-emf measurements confirmed that α-FeOexhibits n-type conductivity.The nanocrystalline α-FeOexhibits antibacterial character against Staphylococcus aureus and its efficiency increases from 37.50%to 87.50%depending on crystallite size.展开更多
文摘Clinotyrolite is a mineral discovered by Ma et al. in 1980. It is a hydrous copperarsenate and similar to tyrolite in both composition and structure. Its structureformula is Cu<sub>9</sub>Ca<sub>2</sub>[（As, S）O<sub>4</sub>]（OH, O）<sub>10</sub>·10H<sub>2</sub>O. Because of a group of perfect
基金the Research Foundation for Doctor Programme (Grant No. 20060055010) the National Natural Science Foundation of China (Grant No. 10571090)
文摘In this paper, we show that if V0 is an isometric mapping from the unit sphere of an AL-space onto the unit sphere of a Banach space E, then V0 can be extended to a linear isometry defined on the whole space.
基金University Grants Commission, New Delhi (India), for financial support under the project
文摘Thin films of nanostructured α-FeOwith thickness of 1 56,203 and 251 nm were deposited by successive ionic layer adsorption and reaction(SILAR) method onto glass substrates using FeCl-6HO and NaOH as cationic and anionic precursors.The X-ray diffraction studies revealed that,α-FeOthin films are nanocrystalline in nature with rhombohedral structure.The morphological properties were investigated by field emission scanning electron and atomic force microscopy.The optical studies showed that α-FeOexhibits direct as well as indirect optical band gap energy.The electrical resistivity of α-FeOat 305 K decreases from 11.76×102 to9.46 × 10~2 Ω cm as film thickness increases from 156 to 251 nm.The thermo-emf measurements confirmed that α-FeOexhibits n-type conductivity.The nanocrystalline α-FeOexhibits antibacterial character against Staphylococcus aureus and its efficiency increases from 37.50%to 87.50%depending on crystallite size.
