Ar与SO2混合放电产生SO（C1∑-）电子态的光谱研究

在流动余辉装置上，利用Ar与SO2混合气体的空心阴极放电，在放电区的下游观察到一系列光谱，将400～600nm波长范围内的发射谱带归属为SO(cl∑-→X3∑-)跃迁，并得到该跃迁的v00=28 500cm^-1。这是气相SO自由基cl∑-电子态的首次直接的光谱观测。     

原子力显微镜用于软X射线接触成像的研究

论述了在接触显微成像技术中，后续放大设备对分辨率的影响，并用实验方法比较了采用光学显微镜和原子力显微镜阅读并放大显微图的结果，表明采用原子力显微镜放大显微图是一种较为理想的方法。     

飞机主起落架收放摇臂的动力学分析

本地运七飞机主起薄架系统，在接近收上位置到碰锁的过程建立了简化的流固耦合的有限元总体模型。利用动态增量非线性有限元程序（ＡＤＩＮＡ８４年版），对主起落架系统收上碰锁过程进行了动力学流固耦合的有限元分析，在此基础上对摇臂建立了更为精细的有限元地其进行了静力分析，无论总体模型还是精细模型均能够起初地反映实际情况，且模型中的有关参数的选取也是合理的，计算结果与试验结果也是吻合的，这说明本文关于飞机主起落     

Phase Structures of Microemulsions Determined by the Steady-State Fluorescence Method

Experimental The pyrene was purchased from Sigma Co., and the other chemicals were of A. R. grade. Water was deionized and distilled twice before use. The microemulsions of required compositions were prepared in the following way. The stock microemulsions were made without water at first, corresponding to the A point (10wt% octane, 63wt% n-butanol, 27wt% CTAB) in the phase diagram of Figure 1 and then a series of microemulsions were made along AW dilution line with adding water. Calcu…     

因子分析-光度法同时测定α-萘酚和α-萘胺

测定了α-萘酚和α-萘胺混合体系的紫外光谱,用目标因子分析法成功地确定了混合体系的物种数、物种种类以及各物种的含量。平均回收率:α-萘酚为96.19%,α-萘胺为100.99%。并将结果同偏最小二乘法和卡尔曼滤波法做了比较。     

X射线荧光基本参数法测定焊锡中的锡和铅

本文在无标样的情况下,用X射线荧光基本参数法测定了焊锡中的锡和铅的含量。     

Cn-连续的B-型样条曲线及其局部性、插值与逼近

§ 1　IntroductionB-spline curve plays an important role in CAGD.Cn-continuous B-spline curve of de-gree n+ 1 has local support of length n+ 2 [1 ] .In order to modify the shape of a curve insmaller range,the length of its supportshould be as shortas possible.The interpolation ofa set of given data points with the B-spline curve generally needs to solve a system of lin-ear equations or to insert some additional control points[2— 5] .Besides,the global approxi-mation of the control polygon …     

小型托卡马克诊断用中性锂束源

介绍一台小型6keV低能锂束源。它是从锂霞石热发射体上引出离子 ,经静电透镜聚焦,在中和室与钠原子进行电荷交换,通过离子偏转最后获得中性束。根据实验需要,引出束流为脉宽10～100ms可调脉冲。仔细调试了束源与各相关参数间的关系,得到中性等效束流典型值是20μA/cm~2,束分布的半高全宽为8～9mm。我们将用此源测量HT-6M托卡马克的等离子体参数。     

Leverage management

An asset manager trades off the benefits of higher leverage against the costs of adjusting leverage in order to mitigate expected insolvency losses. We calculate optimal dynamic incentive-compatible leverage policies in simple versions of this problem. We give explicit conditions under which the value functions remain finite and show that following the optimal trading strategy, the fund manager does not have strong incentives to realize the loss and sell the asset when the value of the asset drops, even though such sales may help the fund to avoid insolvency.     

UNIFYING REPRESENTATION OF BZIER CURVE AND GENERALIZED BALL CURVES

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