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In this study, we are focusing on the detailed control of the size and density of nanoparticles on the substrate by employing the gas-phase catalyst. To fabricate iron (Fe) nanoparticles as catalyst, Fe(CO)5 gas was used. Size and density of the nanoparticles can be controlled by varying the experimental parameters, such as the molar flow rate, the decomposition temperature and the flow time. Quartz...
In this paper we present a simple but powerful one-step growth method of ultra-long vertically aligned multi-walled CNT (MWNT) array, and its possible applications. Our growth method requires no additional process for catalyst thin film (pre-deposition), and only requires iron chloride powder and acetylene gas. We also present the results of electrical properties of MWNT array, such as electrical...
A subdivision of a rectangle into rectangular faces with horizontal and vertical line segments is called rectangular drawings or floorplans. It is known that the number of rectangular drawings R(n) is asymptotically approximated by a geometric progression, where n is the number of inner rectangles. More precisely, there exists a constant c = limnrarrinfin R(n)1/n. The best upper and lower bounds of...
In this paper, we proposed applying smart antenna technology to AAC and the proposed AAC-SA method, which is a new antenna pattern control algorithm suited to AAC. The simulation results show that the proposed method automatically generates a high quality area even when the BS arrangement is random. The quality level is even equal to that when the BS arrangement is regular. In addition, the effectiveness...
This paper describes our study applying GA to search the reward values for reinforcement learning in a soccer video game using learning classifier systems. In particular, we report the result of promotion of efficiency by dividing searched space and searching the divided space alternately. We have already proposed that acquiring algorithms by using the event-driven hybrid learning classifier system...
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