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From the grove to the sky: Chinese team develops drone made of bamboo-based composites_我的网站

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    A drone made of bamboo-based composite materials is seen in flight. Photo: official WeChat account of Long BambooA Chinese team has developed a drone using bamboo-based composite materials after making a breakthrough in a technique that allows bamboo to be flattened while preserving its tough outer layer. The drone has completed multiple test flights, China Central Television (CCTV) News reported.
Long Bamboo, a company based in East China's Fujian Province, developed the technique that preserves the bamboo's tough outer layer and allows different parts with different densities of the material to be used according to their properties, improving its overall performance.
In the past, the outer skin of bamboo was often treated as leftover material and eventually burned into low-value bamboo charcoal.
According to a company release in February, bamboo-based composites now make up more than 25 percent of the entire drone, while its fuselage skin is made entirely from the company's own high-performance bamboo composite material.
The bamboo-based material also offers a major cost advantage, costing only about one-quarter to one-tenth as much as aviation-grade carbon fiber. After the drone is retired, the material can naturally degrade, allowing it to effectively "come from nature and return to nature."
The team spent four years building data models, upgrading equipment and refining the material. The resulting drone has a wingspan of more than 2.5 meters but weighs only about 7 kilograms, and has already completed multiple test flights, according to CCTV News.
Bamboo was traditionally used mainly in products such as tableware and furniture. Now, however, the material is finding its way into a wider range of industrial applications. Bamboo fiber is being used in automobile interiors, while bamboo-based materials are also being explored as possible substitutes for plastics, glass fiber and carbon fiber in some applications. 
China has the world's largest bamboo resource base, with about 7.56 million hectares of bamboo forests nationwide. The country also ranks among the world leaders in bamboo resources, bamboo cultivation technologies and the development and utilization of bamboo materials, per CCTV News.
Global Times 
。          　　本报讯　今年以来，商河县行政审批服务局创新“支部破题日”微载体，将问题摆上台面，以三个支部的三场“破题战”，展现了为民服务的初心本色。     　　第一场：化解午间的“排队焦虑”。便民服务党支部在日常巡查中发现，下午上班时间还未到，群众就排起了长龙。

B | 市民坦言“怕来晚了办不上，得提前占位”。于是，党员主动提前到岗，在等候区帮群众预审材料、分流引导，消解了群众焦虑，得到广泛好评。     　　第二场：答好一份“附加题”。企业服务党支部接到一通特殊来电，一位残疾人创业者咨询注册企业有无补贴。虽不在职能范围内，但支部当场拍板：“群众打给我们是信任，这道‘附加题’必须答。

C | ”党员们立即对接人社、残联等多个部门，梳理出最新惠残政策汇编，给出了一份超出预期的答复。

D |      　　第三场：让“口头提醒”变“明白纸”。项目保障服务党支部发现，现场踏勘时的口头整改提醒，企业常常记不清、弄不准。党员骨干主动设计出一张现场查验记录表——问题在哪儿、怎么改、何时改完，白纸黑字、一目了然。企业满意度随之大幅提升。     　　三场“破题战”撬动了党建与业务的“大融合”。目前，该局正将探索设立跨支部“联合破题日”，让优秀解题成果化作标准流程和服务指南。(济南日报·爱济南记者　李云　通讯员　张逸飞)。

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Published on:08:19:19