Industrial Poverty Alleviation Model in Southwestern High-altitude Mountainous Areas of China——A Case Study of Industrial Poverty Alleviation of Xueshan Township in Luquan County of Yunnan Province through Planting Codonopsis pilosula

Due to the severe restrictions of natural conditions and ecological environment,high-altitude mountainous areas usually become the " hard bones" in the battle against poverty. Xueshan Township,Luquan Yi and Miao Autonomous County of Yunnan Province,located in the alpine valley of Jinsha River,is a major township with wide and deep poverty,and the incidence of poverty is up to 45. 00%. In recent years,Xueshan Township has insisted on the battle against poverty,made effort to develop the Codonopsis pilosula industry,and successfully developed a road to poverty alleviation through C. pilosula industry,and formed a unique industrial poverty alleviation model by the end of 2018,the incidence of poverty dropped to 0. 74%. Based on field survey and interview,this paper analyzes and summarizes the specific practices,main results,practical experience and promotion and application measures of the poverty alleviation model of C. pilosula planting industry in Xueshan Township,in the hope of providing certain reference for the targeted poverty alleviation in similar areas in Yunnan Province and other provinces of China.

Leading-edge technologies in hydropower development in China

After the implementation of the Reform and Opening-up Policy for a period of 40 years, the exploitation of Chin a's hydropower resources developed significa ntly. Through vast amounts of scie ntific and tech no logical research and construction practices, China has accumulated abundant engineering experience with respect to the construction technologies required for 300-meter-high concrete arch dams, 200-meter-high roller-compacted concrete gravity dams, 200-meter-high concrete face rockfill dams, 250?meter?high earth core rockfill dams, large-flow discharge and energy dissipation, huge underground cavern group constructions, complicated foundation treatments for high earth and rockfill dams and high and steep slope reinforceme nts. These series of tech no logies have now reached an inter national leadi ng level. In the near future, these technical improvements will likely have broader application prospects and make greater contributions toward hydropower development both in China and across the world.

3D printing of bioinspired compartmentalized capsular structure for controlled drug release

Drug delivery with customized combinations of drugs,controllable drug dosage,and on-demand release kinetics is critical for personalized medicine.In this study,inspired by successive opening of layered structures and compartmentalized structures in plants,we designed a multiple compartmentalized capsular structure for controlled drug delivery.The structure was designed as a series of compartments,defined by the gradient thickness of their external walls and internal divisions.Based on the careful choice and optimization of bioinks composed of gelatin,starch,and alginate,the capsular structures were successfully manufactured by fused deposition modeling three-dimensional(3 D)printing.The capsules showed fusion and firm contact between printed layers,forming complete structures without significant defects on the external walls and internal joints.Internal cavities with different volumes were achieved for different drug loading as designed.In vitro swelling demonstrated a successive dissolving and opening of external walls of different capsule compartments,allowing successive drug pulses from the capsules,resulting in the sustained release for about 410 min.The drug release was significantly prolonged compared to a single burst release from a traditional capsular design.The bioinspired design and manufacture of multiple compartmentalized capsules enable customized drug release in a controllable fashion with combinations of different drugs,drug doses,and release kinetics,and have potential for use in personalized medicine.