H2、D2、CO与Pd同时反应的热力学耦合理论和排代效应

应用密度泛函B3P86方法,对H(D)、C、O采用6-311++G**,对Pd采用相对论有效势SDD基集合进行理论计算, 得到PdH(PdD)、PdCO、H2、D2、CO等分子的平衡几何和离解能。利用电子-振动近似理论,分别计算了在不同温度下Pd与氢、Pd与氘、以及Pd与CO反应的平衡常数及平衡分压。进而利用同时反应的热力学理论,研究Pd与H2、D2、CO同时反应的平衡组份、平衡分压力及其排代效应和相互耦合竞争效应。     

共轭Hahn—Banach定理

引入共轭集值映射的概念,讨论了它的性质.证明了共轭集值映射是由线性算子的凸集生成的,把Hahn-Banach定理推广到双次线性泛函的情形.作为应用讨论了Ioffe的广义微分概念。     

应压木纤维素非晶区取向度的测定和分析

在以前用偏振荧光法测定正常材纤维素非晶区取向度的基础上，对马尾松材应压木应压区、对照区的取向度作了系统的测量，结果表明非晶区的取向度有一定分布规律，特别是早、晚材应压区的取向度均大于对照区，并对此作了初步的分析。     

流动含优面法──求解线性规划问题（LP）的一种快速算法

流动含优面法──求解线性规划问题（ＬＰ）的一种快速算法阮国桢主题词线性规划，基点，含优面分类号Ｏ２２１，１流动含优面法简介考虑线性规划问题ｍａｘｆ＝ｅｘ（ＬＤ）ｓ．ｔ。ＡｘＣｂ．ｘＭＯ其中ｃ，ｘ６Ｒ”，ｈＥＲ”，Ａ是ｍＸｎ矩阵．Ｘ一｛ｘ６Ｒ叫Ａｘ＜ｂ...     

动量表象下的Lorentz变换生成元

在动量表象下对非零质量带自旋粒子的角动量算符和推动矢量算符也即Lorentz变换生成元进行了讨论，得到了它们轨道和自旋两部分分拆的新的表达式。     

利用变换y=ze~(λx)讲解二阶常系数线性微分方程

施变换ｙ＝ｚｅαｘ于特征根为共轭复根α±ｉβ的常系数齐次线性微分方程ｙ″＋ｐｙ′＋ｑｙ＝０和施变换ｙ＝ｚｅλｘ于常系数非齐次线性微分方程ｙ″＋ｐｙ′＋ｑｙ＝ｅλｘ［Ｐｌ（ｘ）ｃｏｓωｘ＋Ｐｎ（ｘ）ｓｉｎωｘ］后，再设Ｚ※＝Ｑ（ｘ）ｃｏｓωｘ＋Ｒ（ｘ）ｓｉｎωｘ，解出齐次方程和导出非齐次方程的特解设置．     

Magnetic properties and giant magneto-impedance effect study of Fe-based nanocrystalline powder

The macroscopic and microscopic magnetic properties for amorphous and nanocrystalline Fe_73.5Cu₁Nb₃- Si1_3.5B₉ powder have been investigated and their giant magneto-impedance (GMI) effect is reported for the first time. The experimental results show that powder sample annealed at 510℃ possesses the optimum soft magnetic properties. However, the maximum longitudinally driven GMI (LDGMI) ratio (about 52%) is found in the sample annealed at 600℃. This means that the LDGMI ratio depends on not only their magnetic properties but also their electric properties.     

Protective effects of nitric oxide on salt stress-induced oxidative damage to wheat (Triticum aestivum L.) leaves

The changes of chlorophyll and malondialdehyde (MDA) contents, plasma membrane permeability confirmed that 0.1 and 1 mmol/L sodium nitroprusside (SNP), a donor of nitric oxide (NO) in vivo, could markedly alleviate the oxidative damage to wheat (Triticum aestivum L.) leaves induced by 150 and 300 mmol/L NaCl treatments, respectively. Further results proved that NO significantly enhanced the activities of Superoxide dismutase (SOD) and catalase (CAT), both of which separately contributed to the delay of O ₂ ⁻ and H₂O₂ accumulation in wheat leaves under salt stress. Meanwhile, the accumulation of proline was apparently accelerated. Therefore, these results suggested that NO could strongly protect wheat leaves from oxidative damage caused by salt stress.     

智能视听信息处理的新策略

综述了计算机听、视觉信息处理目前的研究状况及已取得的成果,并阐述了各国在信息处理领域的发展战略,结合＂超级智能视听信息处理系统的研究＂提出的集声、象、图、文计算机信息处理于一体的多信息处理系统研究的新思路,介绍了该研究的详细内容。指出该研究有可能开僻的一条新的信息处理途径。同时,指出智能化听、视觉信息处理技术将是多媒体计算机、多媒体通信乃至＂信息高速公路＂技术的基础。