〔Scr〕计算机病毒的分析与清除

本文详细分析〔scr〕病毒的结构、感染机制及被感染文件的特征,提出解病毒软件的设计方法与结构,完整地给出手工清除〔scr〕病毒的方法,提出解病毒程序自身防护的设计思想,以便实现在病毒激活的状态下清除病毒。     

单晶Co~(2+):MgGa_2Se_4光学吸收谱的理论解释

该文考虑了d电子t2g轨道和eg 轨道局域性差别的影响 ,并计及Racah参量A对光谱跃迁的贡献 ,导出了 3d7电子组态在Td 对称下的哈密顿矩阵公式 .从理论上研究了Co2 + :MgGa2 Se4 中Co2 + 离子的吸收光谱 ,理论结果与实验结果吻合很好 .     

AES列混合变换

为了构造更多"好"的AES列混合变换,针对线性变换所对应的矩阵为循环移位矩阵的情形进行研究.用分支数来度量AES线性变换的扩散能力.得到了此类线性变换分支数的界为3≤B≤5,并给出几类线性变换的构造.当分支数为3时,得到了该类线性变换的充要条件;当分支数为4时,构造了一类逆变换与自身相等的线性变换,采用此类线性变换,可使AES的加密电路自动支持解密,节省硬件资源.还构造了一类分支数为5的线性变换.     

冷冻干燥过程数学模型的建立与分析

在对食品冷冻干燥过程及其数学模型文献深入研究的基础上,建立了纯辐射加热条件下传热、传质的偏微分数学模型,并对模型的求解及应用进行了讨论。     

Energy Consumption in Wireless Sensor Networks

Wireless sensor networks (WSNs) can be used to collect surrounding data by multi-hop. As sensor networks have the constrained and not rechargeable energy resource, energy efficiency is an important design issue for its topology. In this paper, the energy consumption issue under the different topology is studied. We derive the exact mathematical expression of energy consumption for the fiat and clustering scheme, respectively. Then the energy consumptions of different schemes are compared. By the comparison, multi-level clustering scheme is more energy efficient in large scale networks. Simulation results demonstrate that our analysis is correct from the view of prolonging the large-scale network lifetime and achieving more power reductions.