近太阳金属丰度恒星的中子俘获元素丰度

在我们提出的利用３种中子俘获过程的典型元素丰度观测值研究不同金属度下不同核合成过程对重元素丰度的贡献的方法的基础上,计算了近太阳金属丰度恒星的重元素的平均丰度,并将计算结果与观测结果进行了比较 。     

双缸液压电梯的同步控制

分析了双缸液压电梯双缸不同步运动的原因,并在系统建模的基础上,利用计算机仿真和试验台试验,比较了增量式比例－微分－积分控制和模糊ＰＩＤ控制双缸同步误差的效果。     

A very strong summer monsoon event during 30-40 kaBP in the Qinghai-Xizang (Tibet) Plateau and its relation to precessional cycle

Guliya ice core records, high lake-level records in the Qinghai-Xizang Plateau and at its north side as well as vegetation succession records indicated that during the period of 30-40 kaBP, namely the later age of the megainterstadial of last glacial period, or the marine oxygen isotope stage 3, the climate of the Qinghai-Xizang Plateau was exceptionally warm and humid, the temperature was 2-4℃ higher than today and the precipitation was 40% to over 100% higher than the current average, all these suggested the existence of an exceedingly strong summer monsoon event. It has been inferred that the occurrence of such an event was attributed, on the one hand, to the stronger summer low pressure over the Plateau, which strengthened the attraction to the summer monsoon; on the other hand, to the vigorous evaporation of the tropic ocean surface, which promoted the moisture-rich southwest monsoon to flow over the Qinghai-Xizang Plateau. The background responsible for the formation of the very strong summer monsoon was that the period of 30-40 kaBP was just in the strong insolation stage of the 20ka precessional cycle, when the Qinghai-Xizang Plateau received extraordinary strong solar radiation and thus enlarged the thermodynamical contrast between the Plateau and the mid-south part of the Indian Ocean.     

含氰废水处理中传感器研究

采用CTEY电极与参比电极配对组成传感器,对含CN-废水进行自动化处理,其信号强烈,电位幅值变化大,可替代废水处理中的ORP控制仪传感器     

不同氮源对结瘤小麦植株生长及其固氮活性的影响

用Ｎｉｔｒｏ苜蓿根瘤菌（Ｍｅｄｉｃａｇｏｓｐ．）诱导小麦结瘤并研究不同氮源对植株生长和结瘤的影响．研究表明,在一定浓度范围内,ＮＯ３－和ＮＨ４＋均能促进植株生长和类根瘤的形成,植株干重的增加与培养基中ＮＯ３－的减少量呈正相关,该种类根瘤具有一定的固氮活性．     

Lie代数gl(m,R)的一些子代数所决定的Lie-Poisson结构的秩的分布

本文对于Ｌｉｅ代数ｇｌ（ｍ,Ｒ）的一些子代数所决定的ＬｉｅＰｏｉｓｏｎ结构的秩的分布进行了计算．     

关于m-增生型算子的扰动

给出了具有凝聚扰动的ｍ 耗散算子的一个不动点定理,利用这个定理得到了ｍ 增生型算子加凝聚扰动、紧扰动或有紧预解算子的零集存在性结论·在较弱的条件下,证明了ｍ 增生算子加紧扰动或有紧预解算子加连续有界扰动的满射性定理·这些结果都不需要空间一致凸的假设·给出了满射性定理在非线性偏微分方程解的存在性问题中应用的例子·     

PVC/EVA共混体系的增韧机理

采用相差显微镜、TEM 与体积应变测量等方法研究EVA 对PVC的增韧机理.结果表明,剪切带、银纹与适量的空穴都对增韧有贡献,但以剪切带的贡献最大.并提出EVA网络结构在增韧中的作用.     

H~ 和SO_4~(2-)离子对PbO_2电极上ClO_4~-阳极形成过程的影响

用分解极化曲线法研究了Ｈ＋和ＳＯ２－４离子对ＰｂＯ２电极上Ｏ２和ＣｌＯ－４阳极形成过程的影响．分解得到的稳态极化曲线φ～ｌｇｉＣｌＯ－４和φ～ｌｇｉＯ２上均有一电位突跃;在２５℃下前一突跃发生在１．９～２．０Ｖ;后一突跃发生在２．０５～２．１５Ｖ左右．两者在突跃区前后的Ｔａｆｅｌ斜率均接近于２．３０３ＲＴ／βＦ（其中β约为０．５１～０．５４）．在突跃前当［Ｈ＋］减小时,使ＣｌＯ－４形成或氧的析出过程均加速,同时使开始发生电位突跃的电流密度（ｃ．ｄ．）向高ｃ．ｄ．方向推移．在高氯酸溶液中当［Ｈ＋］增加时,对Ｏ２析出过程几乎没有影响,但对突跃后的ＣｌＯ－４阳极形成具有加速作用．ＳＯ２－４对ＣｌＯ－４形成和Ｏ２的析出均有阻滞作用,但对前者的阻滞作用要大于对后者的阻滞作用,因而使ＣｌＯ－４的电流效率下降     

多复变域R_I(m,n)上Cauchy积分与Poisson-华积分的边界性质

研究多复变域ＲＩ（ｍ,ｎ）上Ｃａｕｃｈｙ积分与Ｐｏｉｓｓｏｎ－华积分,得到边界函数ｆ∈ＬＰ,Ｐ＞１时几乎处处收敛的结果．