The obvious tendency of modern artists to change the concept of painting is to pay more and more attention to personal feelings and spiritual expression. In modern oil paintings, there are more and more oil paintings that convey emotions and the emotional expression methods of the colors of the works are becoming more and more abundant. This article aims to study the application of multimedia visual communication in the texture and color matching of oil painting creation materials and to put forward the viewpoint of applying more multimedia visual communication to oil painting creation. This article first gives a detailed introduction to oil painting creation materials and their texture, oil painting color matching, and so on. In addition, experiments were conducted on the application of multimedia visual communication in the texture and color matching of oil painting creation materials. The experimental results show that the texture and color matching of oil painting creation materials based on multimedia visual communication are more popular with the public, and oil painters are also satisfied with this method. And, the expressiveness of oil painting texture has been improved by 10%. This shows that the texture and color matching scheme of the oil painting material in this study is effective.
Hydraulic erosion associated with seasonal freeze-thaw cycles is one of the most predominant factors, which drives soil stripping and transportation. In this study, indoor simulated meltwater erosion experiments were used to investigate the sorting characteristics and transport mechanism of sediment particles under different freeze-thaw conditions (unfrozen, shallow-thawed, and frozen slopes) and runoff rates (1, 2, and 4 L/min). Results showed that the order of sediment particle contents was silt>sand>clay during erosion process on unfrozen, shallow-thawed, and frozen slopes. Compared with original soils, clay and silt were lost, and sand was deposited. On unfrozen and shallow-thawed slopes, the change of runoff rate had a significant impact on the enrichment of clay, silt, and sand particles. In this study, the sediment particles transported in the form of suspension/saltation were 83.58%-86.54% on unfrozen slopes, 69.24%-84.89% on shallow-thawed slopes, and 83.75%-87.44% on frozen slopes. Moreover, sediment particles smaller than 0.027 mm were preferentially transported. On shallow-thawed slope, relative contribution percentage of suspension/saltation sediment particles gradually increased with the increase in runoff rate, and an opposite trend occurred on unfrozen and frozen slopes. At the same runoff rate, freeze-thaw process had a significant impact on the relative contribution percentage of sediment particle transport via suspension/saltation and rolling during erosion process. The research results provide an improved transport mechanism under freeze-thaw condition for steep loessal slopes.
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