复合化学镀固定敏感物质的氧传感器研究

利用复合化学镀方法在200目铜网上固定硅胶颗粒,得到了Silica-Ni-P的复合化学镀层,并研究了以它为支持体系,以[Ru(bpy)_3]Cl_2为敏感物质的光学氧传感器的响应特性。该敏感镀层具有良好的稳定性、重现性和灵敏度,对气态氧有着较好的响应,在低浓度范围内(0%～20%)符合Stern-Volmer方程。     

基于信托方式的曲线MBO模式再设计

管理层收购作为国企产权制度改革的一种途径，在我国的实施过程中面临一些问题与障碍。通过对基于信托方式的曲线MBO模式的再设计，引入员工持股计划、公开竞价机制、战略投资者以及风险共担机制，重视对MBO完成后目标公司的整合，以期达到规范曲线MBO实施过程、完善公司治理结构的目的。     

弯曲空间中动能的统一形式

计算出了弯曲空间中多粒子系统动能的一般形式,并指出该系统的位形空间不是一个Euclidean空间,而仅仅是一个度规与粒子质量有关的普通平直空间.     

Iterative Scaling in Curved Exponential Families

The paper describes a generalized iterative proportional fitting procedure that can be used for maximum likelihood estimation in a special class of the general log‐linear model. The models in this class, called relational, apply to multivariate discrete sample spaces that do not necessarily have a Cartesian product structure and may not contain an overall effect. When applied to the cell probabilities, the models without the overall effect are curved exponential families and the values of the sufficient statistics are reproduced by the MLE only up to a constant of proportionality. The paper shows that Iterative Proportional Fitting, Generalized Iterative Scaling, and Improved Iterative Scaling fail to work for such models. The algorithm proposed here is based on iterated Bregman projections. As a by‐product, estimates of the multiplicative parameters are also obtained. An implementation of the algorithm is available as an R‐package.     

上限法求解不同型线凹模棒材挤压力

在柱坐标系下,采用上限法推导了不同型线凹模棒材挤压力理论计算公式;并计算了锥模棒材挤压力,其计算结果接近实测值,相对误差平均值为2.5%左右;这表明不同型线凹模棒材挤压力理论计算公式是可行的.     

用分子轨道稳定化能曲面研究d~8低自旋配合物的几何构型

用自编程序计算了ｄ８ 低自旋配合物中心离子的ｄ 电子在不同ｄ 轨道中分布时，配体在不同空间方向上与中心离子配位所产生的分子轨道稳定化能，并绘制了分子轨道稳定化能曲面图，由此阐明了该类配合物的配位数、几何构型、配体配位方向等随中心离子电子排布不同而发生的变化     

A Simple Derivation of r* for Curved Exponential Families

For curved exponential families we consider modified likelihood ratio statistics of the form r_L=r+ log( u/r)/r , where r is the signed root of the likelihood ratio statistic. We are testing a one-dimensional hypothesis, but in order to specify approximate ancillary statistics we consider the test as one in a series of tests. By requiring asymptotic independence and asymptotic normality of the test statistics in a large deviation region there is a particular choice of the statistic u which suggests itself. The derivation of this result is quite simple, only involving a standard saddlepoint approximation followed by a transformation. We give explicit formulas for the statistic u , and include a discussion of the case where some coordinates of the underlying variable are lattice.     

曲线箱梁有限条法计算程序

采用自然坐标系统,根据圆锥壳应变—位移关系,导得简支曲线条元的应变矩阵、单元刚度矩阵及其相容荷载列阵,在IBM—PC微机上编制了计算机程序,通过曲线箱梁实例计算表明,当加大半径时,曲条法与笔者另行编制的高阶直条法结果吻合良好;当缩小半径时,曲线箱梁的内力变化规律与实际相符,证实了程序的正确性。     

混合信号集成电路数字PLL衬底噪声的SPICE模拟及分析

应用PSPICE及采用C语言自编的外部程序,对单片数字锁相环电路中的衬底噪声及对电路性能的影响进行了模拟研究和分析,有助于进一步理解衬底噪声及衬底噪声对复杂的混合信号电路工作的影响,提出了实际应用中选择衬底类型的方法。     

混合信号集成电路中的衬底噪声耦合(英文)

研究混合信号集成电路中衬底噪声耦合反衬底噪声对模拟／数字电路的影响。采用带外延层的重掺杂型衬底,对混合信号集成电路中研究衬底噪声的两个基准（Ｂｅｎｃｈｍａｒｋ）电路进行了模拟和评价,提出了在高速和高频工作时应用ＳＰＩＣＥ对混和信号电路进行模拟的正确方法．