Wei Xu Knihy

Handscroll; Ink and wash on paper; 1294cm(width)*22cm(height) From right to left, thirteen different species of plants are depicted in this painting, beginning with the peony, followed by the pomegranate flower and lotus, then a tall Chinese parasol tree that occupies a space equal in size to that covered by the previous three flowers combined. This is followed by the chrysanthemum, pumpkin, lentil, and crepe myrtle clustered together as a transition to grapes and plantain, which form the core of the painting and take up one third of the space, pushing the momentum of the scroll to its climax. It concludes with light ink depicting the outline of plum blossoms, daffodils, and bamboo. Xu painted with a type of ink that was a specialty of Anhui Province, employing freestyle brushstrokes with great improvization to create a symphonic grandeur and magnificence. Xie Zhiliu praised Xu Wei as "next to no other painter in the world."

Focusing on control technologies, this book delves into the efficient operation of brushless doubly-fed induction generators (BDFIGs). It addresses the need for high-quality output voltage and the elimination of speed/position encoders across various loads and conditions. The authors present advanced control methods through clear texts, illustrations, and tables, ensuring robust and cost-effective performance. The outcomes highlight the potential for future research challenges in the field, providing valuable insights for readers interested in BDFIG technology.

As China's modernization accelerates wood demand, the country faces a significant shortage of high-grade hardwood timber, constrained by its domestic supply capacity. To bridge this gap, China must import large quantities of valuable hardwoods, such as ash wood, merbau, and North American cherry, which are essential for high-value furniture and products like solid wood flooring and veneers. The scarcity of these resources has heightened their market value, making it crucial to understand the status of hardwood timber in China. Despite the importance of this issue, few studies have focused on it, prompting this research to fill the information gap. Utilizing a value chain analysis framework, the study systematically examines wood demand and supply, production of value-added products, and consumption and trade flows in the hardwood timber market. It identifies desired wood qualities and lists highly demanded tree species for high-value products. Statistical data indicates that China will increasingly rely on imports, projecting a need for 50 million cubic meters of valuable hardwood timber by 2010, with 42 million cubic meters sourced from abroad. The analysis reveals a growing processing capacity for value-added products and forecasts 23 million cubic meters for export and 27 million cubic meters for domestic use by 2010. The thesis also outlines trade flow patterns and current wood prices in major wholesale markets, while iden