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利用废弃椰木制备B和N共掺杂碳微纳结构及其电磁波吸收性能
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作者 范昊 陈拥军 +2 位作者 李建保 陈帅峰 陈庆 《人工晶体学报》 CAS 北大核心 2024年第7期1269-1279,共11页
5G通信技术为社会发展和日常生活提供了极大的便利,但同时也带来严重的电磁波污染。为了减轻这种污染产生的危害,设计轻量化和环保的宽带电磁波吸收材料已成为研究热点。本文利用椰木做前驱体制备了一种具有竹节管状一维结构的B和N共掺... 5G通信技术为社会发展和日常生活提供了极大的便利,但同时也带来严重的电磁波污染。为了减轻这种污染产生的危害,设计轻量化和环保的宽带电磁波吸收材料已成为研究热点。本文利用椰木做前驱体制备了一种具有竹节管状一维结构的B和N共掺杂碳材料,B和N共掺杂优化了生物质衍生碳的组成,改善了材料的阻抗匹配,一维的竹节中空结构有利于电磁波进入材料内部。制备的材料具有优异的电磁波吸收性能,最低反射损耗(RL)在14.12 GHz时达到-59.64 dB,有效吸收带宽(EAB)宽度范围为5.88 GHz,所需厚度仅为2.1 mm。研究结果表明这种材料优异的电磁波吸收性能来自于电磁波在材料中的多重折射和散射、偶极子极化、界面极化及电导极化等方面的共同作用。 展开更多
关键词 椰木 B N共掺杂 碳微纳结构 阻抗匹配 电磁波吸收 环境友好
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椰子的开发利用 被引量:57
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作者 肖红 易美华 《海南大学学报(自然科学版)》 CAS 2003年第2期183-189,共7页
介绍了热带资源椰子的结构与组成,概述了国内外椰肉、椰子水、椰衣、椰壳、椰木、椰花等开发利用产品的生产工艺及其用途,并展望了我国椰子的广阔开发利用前景,针对国内椰子开发利用的现状,提出了开发利用椰子的建议.
关键词 肉、子水 椰木 开发利用 生产工艺
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Diversification of Cassava Flour in the Manufacture of Gluten-Free Flakes Enriched with Dietary Fibers from Virgin Coconut Oil Waste Flour
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作者 Diana Widiastuti Eka Herlina +1 位作者 Ade Heri Mulyati Siti Wamasih 《Journal of Agricultural Science and Technology(B)》 2016年第6期418-423,共6页
Food diversification is a way to strengthen national food security, for example by reducing the dependence on wheat flour as a main raw material of various food products through the use of cassava flour. Cassava flour... Food diversification is a way to strengthen national food security, for example by reducing the dependence on wheat flour as a main raw material of various food products through the use of cassava flour. Cassava flour, a rich source of carbohydrates, can be used in the making of flakes. In this study, the Virgin coconut oil (VCO) waste flour was added in cassava flour to produce gluten-free cassava flour flakes with high dietary fiber contents. The six different formulas of flakes were used in this study with addition of 0% (control), 10%, 20%, 30%, 40% and 50% coconut waste flour, respectively. Then, the chemical and microbiological characteristics of the flakes were measured. Based on the proximate data, both flours have a good quality. The microbiological analysis shows cassava flour and coconut waste flour have good sanitation and food safety. Results showed that flakes with 80% cassava flour and 20% coconut waste flour are gluten-free and contain 2.52% water, 2.27% ash, 14.40% fat, 4.50% protein, 76.31% carbohydrate, 8.56% dietary fiber. Therefore, it can be said that cassava flour flakes can serve as gluten-free and rich dietary fiber ready-to-eat food. 展开更多
关键词 FLAKES cassava flour Virgin coconut oil waste flour GLUTEN-FREE dietary fiber.
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