变间隙法布里-珀罗干涉仪光程差线性分析

对于变间隙法布里-珀罗（F-P）干涉式成像光谱仪,空间干涉信息是否按光程差等间隔采样,即光程差与探测器像元位置之间是否是线性变化关系,直接决定了光谱数据处理的难易程度。经分析,变间隙法布里-珀罗干涉式光谱成像系统的光程差是干涉仪分光产生的两艾里斑的中心距离的函数,而两艾里斑中心距与探测器像元位置并非一直保持线性关系,与干涉仪楔角的取值有关。研究了不同楔角条件下光程差与探测器像元位置之间的关系曲线,结果表明,在任意楔角下,光程差与探测器阵列像元位置之间均保持良好的线性关系。长波红外变间隙F-P干涉式光谱成像系统与高精度光谱辐射计测得的特征峰位置重合度达100%。     

K3H3[As2W21O69（H2O）]·19H2O的合成及晶体结构（英文）

利用二缺位K14[As2W19O67]·nH2O前驱体在酸性条件下的结构转变得到了饱和的砷钨酸盐K3H3[As2W21O69(H2O)]·19H2O(1),借助傅立叶变换红外光谱和X射线单晶衍射对其结构进行了表征.结果表明,化合物1的多阴离子骨架由两个相同的三缺位[α-AsW9O33]9-片段通过三个W=O基团连接而成.值得提及的是,在化合物1的阴离子骨架中心空腔中存在一个游离的水分子.     

关于约束极值问题降维法的探讨

讨论等式约束极值问题的降维法,分析了可能出现的几种问题,并给出相应的求解方法,最后还提出了约束极值问题的逆向思维求解法,并给出了具体的例子.     

m点边值共振问题解的存在性与上下解方法

研究一类共振情形下二阶m点边值问题(ρ(t)x′)′=f(t,x(t),x′(t)),t∈[0,1],x′(0)=0,x(1)=∑m-2i=1αix(ηi),其中mi 3为整数,αi 0,ηi∈(0,1)(i=1,2,…,m-2)为常数,满足∑m-2i=1αi=1,0<η1<η2<…<ηm-2<1.本文的研究工具主要依赖于一个新的增算子不动点定理,本质不同于以往文献中使用的Mawhin重合度定理.     

Collective Transverse Flow in Intermediate Energy Heavy-Ion Collisions

Within the hadronic transport model IBUU04, we study the density-dependent symmetry energy by using the neutron-proton differential flow from the 132Sn＋124Sn reactions at beam energies of 200, 400, 600 and 800MeV per nucleon. The strong effect of the symmetry energy is shown at the incident beam energy of 400MeV/A. The small medium-effect of the neutron-proton differential flow is also found. We also study the neutron-proton differential flows with impact parameters of 3, 5, 7fm. It is found that in semi-central collisions the sensitivity of the neutron-proton differential flow to the symmetry energy is larger.     

利用中-质微分流探测对称能的高密行为

基于同位旋和动量依赖的强子输运模型IBUU04，研究了¹³²Sn+¹²⁴Sn在三种不同碰撞能量、两种不同对称能作用下，中-质微分流随快度的变化关系. 发现中-质微分流的强度随碰撞能量的增大而增强. 在碰撞能量为400 MeV每核子时，中-质微分流对对称能最为敏感. 关键词： 重离子碰撞 中-质微分流 对称能     

大尺寸化学Ni源金属诱导晶化多晶硅的研究

用无电电镀的化学方法，在VHF-PECVD沉积获得的非晶硅薄膜表面形成镍诱导源，在550℃下退火若干小时，可以诱导产生微米量级的多晶硅晶粒.用此法形成的镍源可以均匀地分布在非晶硅薄膜的表面.非晶硅薄膜上形成晶核的数量取决于镍溶液的浓度、pH值和无电电镀的时间等参量.当成核密度比较低时可以观察到径向晶化现象.用VHF-PECVD非晶硅薄膜作为晶化前驱物，晶化后多晶硅的最大晶粒尺寸可达到90μm.用此多晶硅试制的TFT，获得了良好的器件特性. 关键词： 金属诱导晶化 化学源 多晶硅 薄膜晶体管     

(e,2e)电子动量谱仪研制和若干原子分子的电子动量谱测量

研制成功了一台先进的多功能用途的（e，2e）电子动量谱仪．装置采用电子束和气体束交叉碰撞方式；使用微通道板一维位置灵敏电子探测器；成功地实现了多参数数据获取和离线分析技术．利用该谱仪分别测量了氦、氩原子和氢、甲烷分子的电离能谱和电子动量谱．该谱仪的能量分辨率为ΔE=1.8eV，动量分辨率为Δp～0.15au 关键词：     

无穷区间上一类不连续非线性积分方程的唯一解

在一般Banach空间中研究了一类无穷区间上不连续非线性积分方程的唯一解．在非常弱的条件下证明了非线性积分方程的唯一解可以由迭代序列的一致极限得到，并给出了逼近解的迭代序列的误差估计式，然后应用到无穷区间一阶微分方程的终值问题，本质改进（将紧型条件删去）并推广了一些结果．     

A formula used to subtract the effect of gamma-ray of the others to that of measured reaction in measurement of cross section of nuclear reaction and its application

According to the regulation of growing and decay of artificial radioactive nuclide, a formula used to subtract the effect of characteristic γ-ray of the others to that of measured reaction was deduced. And then the cross sections of ¹²⁰Te (n,2n)^119mTe reaction induced by neutrons around 14~MeV were measured by activation relative to the ⁹³Nb (n, 2n) ^92mNb. In the process of the cross sections measured to be calculated, it was subtracted that the effect of characteristic γ-ray of ¹²⁶Te (n, p) ¹²⁶Sb to that of measured ¹²⁰Te (n, 2n) ^119mTe reaction using the formula deduced. The experimental results were (689±37) and (750±41) mb at the neutron energies of (13.5±0.3) and (14.6±0.3)MeV, respectively. Measurements were carried out by γ-detection using a coaxial HPGe detector. As samples, spectroscopically pure tellurium powder has been used. The fast neutrons were produced by the T(d, n)⁴He reaction. The neutron energies in these measurements were determined by the method of cross-section ratios between ⁹⁰Zr (n, 2n) ^89m+gZr and ⁹³Nb (n, 2n) ^92mNb reactions.