Carbon-doped BN (BNC) membrane was fabricated by low pressure chemical vapor deposition (LPCVD) at a high temperature (750°C). Here, CH3NH2 was used as the reactive gas instead of NH3. The newly developed BNC has tensile stress and is transparent to visible light. A very small hydrogen content (3.3%) leads to the construction of strong atomic networks of B, N, and C, as well as to highly improved radiation stability.
A b s t r a c t -F o r the MR strips stabilized by the permanent magnet films, we numerically analyze the effects of the leakage field of the permanent magnet films on the bias angle in the MR films. Using the magnet films a s the domain control films, .magnetization rotation in the MR films at the track edges is suppressed by their leakage fields and will in turn decrease the effective track width. The decrease of the effective track width is thought to be due to the large leakage field especially at the track edges, so we examined some cases o f decreasing the leakage field at track edges. Among the cases, the effective track width was most effectively enlarged when the distance between the magnet films was widened compared with the spacing of the leads.
The purpose of this study was to analyse the actual condition of urban housing supply and demand in China, to evaluate the characteristics of Chinese house plan types, and to know how the direction of development of Chinese house plan types move forward. This study was a case study in Shenyang city. The result as follows ; (1) The basis of the china's housing market already had been completed in the latter half of 1990s. The urban house was widely purchased by people from the high income group to the low income group. (2) The urban house in China had the rational plan types which could gradually compose the public territory and the private territory. (3) According to the patterns analysis, the plan types of houses that have their direction of development could be closely described.
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