• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Polymers >A Theoretical Multifractal Model for Assessing Urea Release from Chitosan Based Formulations
【2h】

A Theoretical Multifractal Model for Assessing Urea Release from Chitosan Based Formulations

机译：用于评估基于壳聚糖的配方中尿素释放的理论多分形模型

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper reports the calibration of a theoretical multifractal model based on empirical data on the urea release from a series of soil conditioner systems. To do this, a series of formulations was prepared by in situ hydrogelation of chitosan with salicylaldehyde in the presence of different urea amounts. The formulations were morphologically characterized by scanning electron microscopy and polarized light microscopy. The in vitro urea release was investigated in an environmentally simulated medium. The release data were fitted on five different mathematical models, Korsmeyer–Peppas, Zero order, First order, Higuchi and Hixson–Crowell, which allowed the establishment of a mechanism of urea release. Furthermore, a multifractal model, used for the fertilizer release for the first time, was calibrated using these empirical data. The resulting fit was in good agreement with the experimental data, validating the multifractal theoretical model.
机译：本文基于一系列土壤改良剂系统释放尿素的经验数据，报告了理论上的多重分形模型的校准。为此，通过在不同尿素用量下将壳聚糖与水杨醛原位水凝胶化制备了一系列制剂。通过扫描电子显微镜和偏振光显微镜对制剂进行形态学表征。在环境模拟培养基中研究了体外尿素的释放。将释放数据拟合到五个不同的数学模型上：Korsmeyer-Peppas，零阶，一阶，Higuchi和Hixson-Crowell，这可以建立尿素释放的机制。此外，使用这些经验数据对首次用于肥料释放的多重分形模型进行了校准。拟合结果与实验数据吻合良好，验证了多重分形理论模型。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号