SLP及其在调速生产布局中的应用

本文在简述了系统布置设计（SLP）的基本内容后，重点就SLP在企业技术改造、调整生产布局中的应用作了探讨。     

具有ARIMA(0,1,0)误差的非线性模型的异方差检验

本文讨论随机误差是 ARIMA( 0 ,1 ,0 )序列的非线性回归模型的异方差检验问题 .首先导出了检验的 score统计量 ,然后利用参数的正交变换 ,得到了调整的 score统计量 .最后 ,利用氯化物数据 ( Bates &Watts,1 988)说明了检验方法的应用     

大口径,高精度光学透镜的光胶工艺技术

介绍大口径，高精度光学透镜光胶我对光学元件的技术要求，光胶环境要求，光胶的偏心调整原理及工艺技术方法，并给出实验结果。     

Identical Bands and Alignment in ^193,194Tl

The microscopic mechanism of the identical bands in odd-odd nucleus ^194Tl and its neighbour odd-A nucleus ^193Tl are investigated using the particle-number conserving method with monopole and quadrupole pairing interaction. It is found that the blocking effect plays an important role in the variation of moments of inertia (J^(1) and J^(2)) with rotational frequency for the superdeformed bands and identical bands. The alignment of 194T1 bands with respect to the ^193Tl(1) band used as a reference is also discussed.     

Surface plasmon enhanced photoluminescence in amorphous silicon carbide films by adjusting Ag island film sizes

Ag island films with different sizes are deposited on hydrogenated amorphous silicon carbide (α-SiC:H) films, and the influences of Ag island films on the optical properties of the α-SiC:H films are investigated. Atomic force microscope images show that Ag nanoislands are formed after Ag coating, and the size of the Ag islands increases with increasing Ag deposition time. The extinction spectra indicate that two resonance absorption peaks which correspond to out-of-plane and in-plane surface plasmon modes of the Ag island films are obtained, and the resonance peak shifts toward longer wavelength with increasing Ag island size. The photoluminescence (PL) enhancement or quenching depends on the size of Ag islands, and PL enhancement by 1.6 times on the main PL band is obtained when the sputtering time is 10 min. Analyses show that the influence of surface plasmons on the PL of α-SiC:H is determined by the competition between the scattering and absorption of Ag islands, and PL enhancement is obtained when scattering is the main interaction between the Ag islands and incident light.     

大学数学教育的偏差与调整对策

大学数学教育与当今遍及全球的数学教育改革方向有较大的偏差.教学内容囿于课本,固守形式演绎体系,重视技能,忽略模式建构;传递、接受的观念根深蒂固,教学方法单一,以教材的逻辑线索代替认知线索;导致学生对内容本质缺乏理解,能力发展不均衡,情感态度发展有欠缺.调整对策是:追求全面的教育目标;提供包括知识背景、理论体系、应用、内容本质、思想方法等完整有机整体的学习内容;多种教学方法综合运用,设计合理的教学线索,让学生主动经历学习过程等.     

对高考填空题的几点思考

1 研究的背景 1.1 2008年高考江苏卷(数学)<考试说明>的出台,首先试卷结构发生了重大变化,虽然难易程度由去年的3:5:2调整为4:4:2,但是去年的10道选择题取消了,08年全部变成了14道填空题.     

激光共焦球面元件姿态自动调整系统

为解决激光差动共焦元件参数测量系统中人工调整元件姿态效率低、重复性差的问题，研制了激光共焦球面元件姿态自动调整系统。基于共焦原理，建立了元件失调量与电动四维调整机构调整量关系的数学模型，并根据CCD探测器实时获取的光斑位置信号分析出被测件的姿态信息，结合闭环反馈控制算法实现姿态自动调整。利用电动四维调整机构搭建了自动调整实验装置，实验结果表明:研制的电动调整机构平移调整分辨力达到0.5 μm，倾斜调整分辨力达到8″；调整系统能够快速、稳定地将被测件姿态失调量调至误差范围内，有效提高调整重复性及效率，对激光差动共焦测量系统实现全自动球面元件参数检测格外重要。