对角形拟线性椭圆方程组的一般特征问题

本文对拟线性椭圆方程组的一般特征问题得到极小解在L∞中的界,并利用变分方法证明了它的极小解的存在性.     

A Comparative Study of Quantum and Classical Deletion

Here in this letter, we study the difference between quantum and classical deletion. We point out that the linear mapping deletion operation used in the impossibility proof for quantum systems applies also to classical system. The general classical deletion operation is a combined operation of measurement and transformation, i.e., first read the state and then transfer the state to the standard blank state. Though both quantum information and classical information can be deleted in an open system, quantum information cannot be recovered while classical information can be recovered.     

弹着点射击残留物转印介质的比较研究

为了考察应用于弹着点射击残留物(Gunshot Residues,GSR)收集的转印介质其显色效果、影响因素、提取次数、后续高光谱分析的质量、易用性和成本等,通过实验比较BenchKote、相纸(230 g)、彩激纸(160 g)、白卡纸(260 g)、超滑纸(300 g),采用湿法提取纺织品上的GSR,然后利用红氨酸...