AMPS共聚物的合成及用于造纸废水絮凝处理的研究

主要研究了AMPS(2-丙烯酰胺基-2-甲基丙磺酸)共聚物的合成及应用。通过研究引发剂的用量、共聚单体的用量、EDTA用量、反应后期温度等因素对AM和AMPS共聚合反应的影响，发现在中性水溶液介质中，在氧化还原引发体系与偶氮类引发剂共同作用下，在5℃的低温下引发聚合反应，当引发剂用量为单体质量0．03％，反应后期温度为40℃时，可获得相对分子质量为1810万的AM和AMPS共聚物。并研究聚合氯化铝／AM和AMPS共聚物体系在造纸脱墨废水絮凝处理的应用，研究表明：AM和AMPS共聚物用量为0．75ms／L，与之复配的聚合氯化铝(PAC)最佳用量是100mg／L，其中1134万相对高分子质量的两性AMPS和AM、MAC共聚物效果更佳，与之复配的PAC用量可减少到75mg／L，CODCr去除率都达70％以上。     

乳化原油选择性堵水室内研究

通过对乳化稠油堵水技术的分析，针对胜坨油田的油藏温度较高、原油粘度较低的实际情况，研究出适合胜坨油田原油的高效乳化剂SCA和稳定剂SCB，得出了温度、矿化度对堵剂效果的影响，确定了堵剂配方为：96％原油、3％活性剂SCA、1％稳定剂SCB，并进行了物理模拟实验。实验证明，该堵剂具有良好的选择性和封堵性能，堵水率达98％以上，堵油率小于5％，在胜坨油田有广泛的应用前景。     

High gamma dose response of the electrical properties of polyethylene terephthalate thin films

Electrical properties of polyethylene terephthalate (PET), irradiated with gamma rays, have been investigated. The PET films were irradiated with high gamma dose levels in the range from 100 to 2000 kGy. The changes in the DC (σ_DC) and the ac (σ_ac) conductivities, with the dose, have been performed. The effect of gamma irradiation on the dielectric constant (ε′) and loss (ε″) has been determined. Also, the dose dependence of the frequency exponent index (S), the resonance frequency (Fc) and the hopping frequency (ω_P) have been obtained. The obtained results show that increasing gamma dose leads to slight increase in σ_DC, σ_ac and ε′, while no change was observed in ε″ value. Meanwhile, S, Fc and ω_P are inversely proportional to the dose. Accordingly, the study suggests the possibility of using PET films in electronic components (capacitors, resistors, etc.), especially that operate at high gamma dose environments for the frequency independent applications.     

表面粗糙度自动标注的实现

充分利用属性块和菜单文件技术,在AutoCAD2000中实现表面粗糙度的自动标注。通过二次开发出的该工具大大地提高了绘制机械零件工作图的效率。     

遗传算法在网络优化中的应用

通讯网络中存在许多设计和优化问题,且相当一部分属于NP-hard类型,传统的解法由于计算复杂度过大而失效。近年来,将遗传算法(GeneticAlgorithm:GA)用于网络优化正逐步成为一个研究热点,本文以网络中的优化问题为线索,对GA在其中的应用做了初步探讨,列举了相关GA算法的特点,特别是路由方面,做了较为详细的分析。     

Let's Call the Whole Thing Off: A Response to Dawes (2001).

There has been a recent controversy regarding the validity of the Rorschach test. This comment is in response to criticism levied by R. M. Dawes (2001; see record 2001-18200-013) on the incremental validity of the Ego Impairment Index (EII), a Rorschach-derived measure of cognition, perception, and reasoning. The Dawes articles (1999 and 2001) serve as an example of the recent practice of placing extraordinary challenges on the Rorschach test. Dawes's arguments are examined and parallel examples are provided that demonstrate the bias used to judge the validity of the EII, the Rorschach, and psychological assessment. Still, in the face of criticism, the results (see Dawes, 2001) support the incremental validity of the EII. Thus, the conclusion presented in this Comment is that it is time for us to "call the whole thing off" and end the Rorschach controversy that has occupied so much recent attention and generated so few new ideas. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

用锻造法改善铍青铜γ1相的均匀性

采用锻造方法，可以改善成分偏析，防止链状γ1相组织形成，得到均匀小颗粒状γ1相，提高铍青铜的性能。     

Landau–Zener Interferometry in a Cooper-Pair Box

In a driven system, a sequence of Landau–Zener transitions occur, and they may interfere with each other. We present experimental evidence of quantum interference effects in a superconducting charge qubit, a Cooper-pair box, where the LZ tunneling occurs at the charge degeneracy. By employing weak capacitive monitoring, we observe interference between consecutive LZ tunneling events.     

464—H14铝合金复合带材抗下垂性能的影响

研究了汽车全铝水箱用464-H14铝合金复合带材成品轧制前软化退火温度，以及成品轧制时冷加工率对材料抗下垂性能的影响。结果表明：退火温度越高，材料抗下垂性能越差，冷加工率控制在20%～40%时，材料具有好的抗下垂性能，为了提高材料的抗下垂性能，必须控制和减少复合带皮材里的Si原子向芯材的扩散。     

板料n值测量方法的研究

在板料冲压成形过程中 ,板料的硬化指数n值具有十分重要的意义 ,因而n值的测量无论对理论研究还是对工程实践都非常必要。因此 ,涌现出众多的硬化指数n值的测量方法。到目前为止 ,常用的测量方法主要有一点法、两点法、阶梯形试件拉伸法等。这些方法各有其优缺点 ,其共同不足就是用这些方法测定的n值反映的只是均匀塑性变形阶段的硬化性能。为此 ,本文基于常规单向拉伸试件在拉断后出现的锥形现象 ,以拉伸过程中的3个特征点 (屈服之后靠近屈服的一点、最大载荷时刻的点和断裂时刻的点 )为基础 ,提出了一种测量n值的新方案———三点法。在此方案中 ,用 3个特征点表征的两个n值分别描述了板料在均匀塑性变形阶段和随后大塑性变形阶段的硬化性能 ,而大塑性变形在板料成形过程中是必不可少的。本文通过对软钢板、紫铜板等进行的试验研究 ,证明了此方案是可行的。而且 ,作为板材成形性重要参数的r值也可以在试验中同时获得