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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 
。    中新网北京8月26日电 (记者 郭超凯)中国财政部副部长林泽昌25日在北京表示，今年以来一般公共预算收入平稳增长，主要是上半年国内生产总值同比增长4.7%，为财政增收奠定基础。         　　受国务院委托，林泽昌25日向十四届全国人大常委会作关于今年以来预算执行情况的报告。         　　林泽昌表示，今年中国经济呈现动能向新、结构向优的发展态势，高质量发展扎实推进。财政政策更加积极、精准发力，预算执行和财政运行总体平稳。

B |          　　关于一般公共预算执行情况，报告称，工业生产者出厂价格连续5个月上涨，1-7月涨幅为1.8%，价格带动作用明显；货物进出口额快速增长，1-7月进口额增长22%，对进口环节税收贡献较大；资本市场交易活跃，带动印花税收入等涨幅较大。

C |                         　　报告指出，1-7月，全国政府性基金预算收入18219亿元(人民币，下同)，同比下降21.2%；全国国有资本经营预算收入2575亿元，同比增长39.8%，主要是去年下半年提高了中央企业国有资本收益收取比例，以及部分省份也提高了收益收取比例；全国社会保险基金预算收入78657亿元，同比增长8.3%。

D |          　　报告还介绍了落实十四届全国人大四次会议预算决议情况，提出下一步财政重点工作安排：精准有效实施更加积极的财政政策；加快现代化产业体系建设；切实保障和改善民生；加强重点领域风险防范化解；持续深化财政管理改革；强化穿透式财政监管。(完) 【编辑:刘阳禾】。

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Published on:08:35:06