Self-organised nanoporous anodic films were fabricated on 904L superaustenitic stainless steel by the electrochemical treatment in ethylene glycol electrolyte containing perchloric acid. The effects of experimental conditions, such as electrolyte temperature and applied voltage on nanoporous morphology, were studied by the way of scanning electron microscopy. The results show that lower solution temperature promotes formation of orderly nanopores. Nanoporous anodic films cannot be formed, and pitting will appear on the stainless steel when temperature is above 40uC. The sizes of pores gradually increase with increasing applied voltage when the applied voltage is lower than 30 V. Porous morphology will change from roughly circular to polygonal, and the size will change from uniform to uneven when the applied voltage is higher than 30 V. It is difficult to form orderly nanoporous anodic films when the applied voltage is too high. Difference of element content in stainless steel is also an important factor for the porous morphology. When the applied voltage is 50 V, orderly pores are formed on 316 austenitic stainless steel surface. However, under the same conditions, this phenomenon does not occur on 904L superaustenitic stainless steel surface. From the analysis of X-ray photoelectron spectroscopy, the films are composed of various metal oxides.

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The reasonable application of the random sampling consistent algorithm can be used to eliminate the theoretically possible error points and then complete the initial aiming pairing. The interior points obtained after this algorithm are used to estimate the relative adjacent poses of the new robot in the operation of the least squares method, so as to make certain improvements to the ICP (iterative closest point) algorithm, making it useful for accurate aiming pairing. Finally, by using the optimization method of G20, the posture of the new mobile robot relative to the adjacent position is optimized to a certain extent. In order to reasonably plan and design the landscape of mountain villages, this paper proposes the corresponding solution by analyzing the multidimensional value and landscape design data of traditional mountain villages, which not only needs to adapt to modern economic development but also needs to live in harmony with the natural ecological environment. Taking a village as a case for analysis, the village houses, roads, services, greening, ecology, and other aspects were reconstructed, and then, the detailed landscape design of the multimedia multidimensional resource village was analyzed and implemented.