A cryptosystem based on computation of square roots of complex integers modulo composite n is described in this paper. This paper provides an algorithm extracting a square root of Gaussian integer. Various properties ...A cryptosystem based on computation of square roots of complex integers modulo composite n is described in this paper. This paper provides an algorithm extracting a square root of Gaussian integer. Various properties of square roots and a method for finding Gaussian generators are demonstrated. The generators can be instrumental in constructing other cryptosystems. It is shown how to significantly reduce average complexity of decryption per each block of ciphertext.展开更多
目的牛蒡根中多糖的提取工艺优化及含量预测。方法牛蒡根中多糖和葡萄糖标准品的紫外可见光谱和多糖含量数据结合R语言进行偏最小二乘法(partical least squares,PLS)建模,并进行定性和定量分析;采用响应面法优化牛蒡根多糖的提取工艺...目的牛蒡根中多糖的提取工艺优化及含量预测。方法牛蒡根中多糖和葡萄糖标准品的紫外可见光谱和多糖含量数据结合R语言进行偏最小二乘法(partical least squares,PLS)建模,并进行定性和定量分析;采用响应面法优化牛蒡根多糖的提取工艺。结果模型拟合结果表明,散点集中分布在主对角线上故最终模型的拟合效果较好,偏最小二乘法-分光光度法可用于多糖含量的快速预测;响应面法优化的最佳提取条件为提取时间55.45 min、乙醇体积分数50.78%、料液比1∶40.31;在此条件下,牛蒡根多糖的提取率为10.33%。结论建立了预测牛蒡根多糖含量的偏最小二乘-光度法,采用响应面法优化了牛蒡根多糖的提取工艺,为提高牛蒡根资源的综合利用提供依据。展开更多
文摘A cryptosystem based on computation of square roots of complex integers modulo composite n is described in this paper. This paper provides an algorithm extracting a square root of Gaussian integer. Various properties of square roots and a method for finding Gaussian generators are demonstrated. The generators can be instrumental in constructing other cryptosystems. It is shown how to significantly reduce average complexity of decryption per each block of ciphertext.
文摘目的牛蒡根中多糖的提取工艺优化及含量预测。方法牛蒡根中多糖和葡萄糖标准品的紫外可见光谱和多糖含量数据结合R语言进行偏最小二乘法(partical least squares,PLS)建模,并进行定性和定量分析;采用响应面法优化牛蒡根多糖的提取工艺。结果模型拟合结果表明,散点集中分布在主对角线上故最终模型的拟合效果较好,偏最小二乘法-分光光度法可用于多糖含量的快速预测;响应面法优化的最佳提取条件为提取时间55.45 min、乙醇体积分数50.78%、料液比1∶40.31;在此条件下,牛蒡根多糖的提取率为10.33%。结论建立了预测牛蒡根多糖含量的偏最小二乘-光度法,采用响应面法优化了牛蒡根多糖的提取工艺,为提高牛蒡根资源的综合利用提供依据。