邻苯二酚自氧化反应的动力学研究

利用单扫示波极谱法（并辅助光谱法）研究了邻苯三酚在ＰＨ７．２０－９．１０的ＴｒｉｓＨＣｌ缓冲体系中自氧化反应的动力学，结果表明，在过量溶解存在时，反应对邻苯三酚为一级，在一定ＰＨ范围内，准一级反应表观率常数ｋａｐｐ随ＰＨ值的增加而增加，说明Ｈ２ＰＹＲ比Ｈ３ＰＹＲ对溶解Ｏ２具有更高的反应活性，探讨了邻苯三酚生成半醌自由基和活性氧的反应的机理，用速度方程解释了实验现象，并为酶活力测定和药物抗氧活性研究     

基于PXI总线的小卫星扩频应答机模拟器的设计与实现

应用PXI总线、扩频通信、软件无线电等技术,设计并开发了一种小卫星扩频应答机模拟器,可作为真实应答机的替代产品参与卫星初样产品桌面联试、与地面站对接等试验.同时基于PXI总线的灵活架构以及模块化设计思路,可实现快速升级,为新算法提供通用验证平台。采用成熟的地面测试设备以及星上产品与该系统进行联试,验证了该应答机模拟器调制、解调等信号处理功能的正确性和有效性。     

Musielak—Orlicz序列空间的光滑性质

本文给出了Ｍｕｓｉｅｌａｋ－Ｏｒｌｉｅｚ序列空间简洁的光滑点判据,从而得到十分便于应用的空间光滑性判别条件,同时纠正了「１」中主要定理的错误。     

甘草化学成分的研究——异甘草黄酮醇及甘草香豆素的结构

从陕西甘草的根茎中分得六个化合物,其中3和6为新化合物,分别命名为异甘草黄酮醇和甘草香豆素.其他四个分别为已知的甘草素、异甘草素、甘草醇和异甘草醇.     

Mechanical design and analysis of a low beta squeezed half-wave resonator

A superconducting squeezed type half-wave resonator （HWR） of β=0.09 has been developed at the Institute of Modern Physics, Lanzhou. In this paper, a basic design is presented for the stiffening structure for the detuning effect caused by helium pressure and Lorentz force. The mechanical modal analysis has been investigated the with finite element method （FEM）. Based on these considerations, a new stiffening structure is proposed for the HWR cavity. The computation results concerning the frequency shift show that the low beta HWR cavity with new stiffening structure has low frequency sensitivity coefficient df/dp and Lorentz force detuning coefficient KL, and stable mechanical properties.     

伴有磁场和纳米固体颗粒时的Jeffery-Hamel流动解析研究——Adomian分解法

用一种强有力的解析方法,称为Adomian分解法(ADM),来研究磁场和纳米颗粒对Jeffery-Hamel流动的影响.将该问题模型的控制方程,即将传统的流体力学Navier-Stokes方程和Maxwell电磁方程,简化为非线性的常微分方程.该方法得到的结果与Runge-Kutta方法得到的数值结果相一致,结果用表格列出.不同α,Ha和Re数下的图形表明,本方法可以得到高精度的结果.首先对不同的Hartmann数和管壁倾角,研究喇叭形管道中的流场;最后在没有磁场作用时,研究纳米固体颗粒体积率的影响.     

Cross-Correlation of Excitation Functions for Different Fragments and Different Scattering Angles in ^27Al（^19F,x）y Reactions

Excitation functions have been measured for different projectile-like fragments produced in ^27Al（^19F, x ）y reactions at incident energies from 110. 25 to 118. 75 Me V in 250 ke V steps. Strong cross section fluctuations of the excitation functions are observed. The cross-correlation coefficients of the excitation functions for different atomic number Z and for different scattering angle θcm have been deduced. These coefficients are much larger than the statistical theoretical calculated ones. This indicates that there are strong correlations between different exit channels in the dissipative heavy ion collision of ^27Al（^19F, x）y.