铅对小鼠脏器中微量元素的影响

为探讨铅的毒性机制，防治铅中毒，分别测定了醋酸铅染毒小鼠各脏器中铅、钙、铁、锌等金属元素含量的各脏器的脂质过氧化物（LPO）值及血清乳酸脱氢酶（LDH）活性，结果显示染铅后小鼠多数脏器中镉、钙、铁、锌浓度和LPO值及血清LDH活性均明显高于对照组，这表明铅对小鼠多数脏器都有毒性，脏器中钙、铁、锌等微量元素含量异常可能是铅引起细胞损伤的重要因素之一。     

An atomistic simulation of site preference and vibrational properties of UMxAl12-x （M = Fe, Co, Ni, Cr and Mn） and UMxAl1z-xHx

A series of lattice inversion pair potentials are used to evaluate the phase stability and site preference for uranium intermetallics UMxAl12-x (M = Fe, Co, Ni, Cr and Mn) and their related hydrides. Calculated results show that Fe, Co, Ni, Cr or Mn atoms preferentially substitute Al at the 8f site. Interstitial H atoms only occupy 2b interstitial sites in UMxAl12-x. Calculated lattice constants are found to agree with a report in the literature. Elastic constants and bulk modulus of UMxAl12-x and UMxAl12-xH were also investigated. In particular, the phonon densities of states (DOS) of these actinide compounds were evaluated for the first time.     

地下水除锰除铁新技术的试验研究

本文作者结合自身实践对地下水除锰除铁问题进行了深入研究。     

液相色谱—大气压化学电离质谱联用技术

色谱分析法是分析化学中得到广泛应用并取得迅速发展的一个重要分支。对液相色谱－大气压化学电离质谱（LC－APCI／MS）联用技术原理，和它在生物基质中的药物及其代谢物的分析、环境分析中的应用作一综述。     

一类带有不确定项的多输入模糊双线性系统的鲁棒控制

对一类带有不确定项的多输入模糊双线性系统(M-I FBS)进行了稳定性分析及控制器设计.使用分布补偿算法(PDC)设计了模糊控制器,得到了带有不确定项的M-I FBS渐近稳定的充分条件.最后,仿真结果验证了推导的该条件的有效性.     

洞（一）

11月21日AM7:11 <晨报>值班室 "是的,是一个洞,你明白吗,一个洞……"电话那头的人相当兴奋,"肯定有新闻价值,所以我马上就给你们拨电话了.我每天都看你们的报纸,就记住了报料电话……"     

Characterization of Titanium-Containing Compounds in Gray Iron

Titanium produces different compounds in gray iron. In order to determine their characteristics, a scanning electron microscope, an energy dispersive X-ray spectroscopy, and an optical microscopy were used to analyze the morphology, distribution, and composition of titanium-containing compounds in metal- Iographic specimens and machined surfaces in four gray irons. The results show that the titanium-containing compounds in the gray irons are complex compounds containing V, Nb, Mn, S, and other metals, depending on the concentration of these elements in the iron. The number of titanium-containing compounds increases with increasing Ti content in the gray iron. Most of the titanium-containing compounds are located in the pearlite matrix, with some in the steadite and carbides. The results suggest that titanium-containing compounds reduce tool lifetime.     

滑坡活动时空分布的容量维(D_0)特征及其工程地质意义

据分形理论，以西藏樟木地区滑坡活动为例，系统地研究了滑坡活动时空结构的容量维（Ｄ０）特征。结果表明，区域性滑坡活动时空结构的分维在急剧变化阶段同滑坡活动的高潮期相对应。滑坡活动降维现象的存在，在某种意义上也许意味着滑坡系统的失稳和滑坡活动的产生。探讨了分维的工程地质意义。     

液-液相转移催化法合成N-(4-甲基苯氧乙酰基)-N′-芳氧基乙酰基肼

在液－液相转移催化下，合成了１０个新的Ｎ－（４－甲基苯氧乙酰基）－Ｎ′－芳氧基乙酰基肼，通过元素分析和红外光谱确定了其结构．     

微波辐射下1,3—双（苯硫基）—2—丙醇的合成

在微波辐射下合成了１３双（苯硫基）２丙醇，并讨论了其反应机理．