天然气:通向氢能时代的桥梁

文章概述了人类能源利用从柴薪、煤到石油、天然气的探索与转变历程,着重对天然气利用在解决城市燃料和空气污染、提高发电效率、推动分布式发电、生产合成氨和合成甲醇、推动燃料电池转向氢能经济时代等方面的优越性进行了阐述。     

气体悬浮焙烧炉内衬烘炉曲线的确定

根据所使用的低水泥浇注料的性能，对中铝山西分公司检修厂4号焙烧炉制定了合理的烘烤曲线，提高了耐火内衬的质量，延长了内衬的使用寿命。     

Characterization of poly(vinyl alcohol)/sodium bromide polymer electrolytes for electrochemical cell applications

Sodium‐ion conducting polymer electrolytes based on poly(vinyl alcohol) complexed with sodium bromide were prepared with a solution‐casting technique. The structure of these films was determined with X‐ray diffraction, and the complexation of the salt with the polymer was confirmed with Fourier transform infrared spectroscopy studies. Electrical conductivity was measured with an alternating‐current impedance analyzer in the frequency range of 100 Hz to 1 MHz and in the temperature range of 303–373 K. It was observed that the magnitude of conductivity increased with the increase in the salt concentration as well as the temperature. The nature of the charge transport in these polymer electrolyte films was determined with both Wagner's polarization technique and the Watanabe technique. The dominant conducting species were found to be ions, particularly anions. Optical absorption studies were performed in the wavelength range of 200–600 nm, and the absorption edge, direct band gap, and indirect band gap values were evaluated. Electrochemical cells were fabricated, and their discharge characteristics were studied. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

焦炉装煤逸散物控制实践

分析了焦炉装煤过程烟尘产生的原因，介绍了焦炉装煤逸散物控制的新方法，以及实施后的效果。     

锂离子电池正极材料的制备研究现状

叙述了锂离子电池正极材料LiC0O2、LiNiO2：LiMn2O4及锂钒氧化物的合成方法；概述了铝、镍、钛等某些掺杂元素对LiC0O2、LiNiO2、LiMn2O4、锂钒氧化物的容量和循环性能影响。通过对LiC0O2、LiNiO2、LiMn2O4及锂钒氧化物的结构、充放电容量等性能分析和合成原料成本的分析，认为LiMn2O4及锂钒氧化物有望成为新一代优良的锂离子电池正极材料。     

二次电池电极基板用复合多孔金属材料的研究

介绍了一种复合金属多孔体的制备及其方法，首先以泡沫塑料为芯膜，经过导电化处理使其具有导电性，其次进行电沉积金属铁，再进行电沉积金属镍，经过热处理后可制备出复合金属多孔体。该复合金属多孔体用铁取代金属镍，其抗拉性能优于单质泡沫镍，同时可以降低制造成本，主要用于载体如电池电极。     

高炉焦炭中子测水与干焦重量补偿模型

文章叙述了高炉焦炭的中子测水原理，并给出了一种干焦重量的补偿方法，最后用一个例子说明实际的效果。     

飞行人员骨密度与内分泌调节关系的探讨

对37名骨密度(BD)低下的飞行员(实验组)和BD正常的48名飞行员、100名地面人员(正常对照组)进行了BD和血清TT_3、TT_4、TSH IRMA、CT、PTH、E_2和T放射免疫测定。结果显示,实验组BD均值明显低于对照组(p<0.01),血清TT_3、TT_4、CT、E_2(女性)和T(男性)均值与对照组比较,大多数年龄存在着显著或非常显著差异(p<0.05或p<0.01)。同时对飞行人员BD与几种内分泌激素关系进行了探讨。     

聚氧乙烯 - 聚氧丙烯 - 聚苯乙烯多嵌段聚合物的力学和导电性能研究

研究了聚苯乙烯含量对聚氧乙烯－聚氧丙烯－聚苯乙烯多嵌段聚合物的力学性能及其与ＬｉＣｌＯ４络合物的离子导电性能的影响；并以电导率较高的络合物为电解质，Ｎａ１＋ｘＶ３Ｏ８复合物和Ｌｉ片分别为正、负极组装了薄型锂电池并测定其放电性能。     

Pyrene oxidation as a model reaction for characterizing the mechanism of coke oxidation on Y zeolites

The same effect of temperature on the production of CO, CO₂ and H₂O was found during oxidative treatment of HY zeolites either impregnated with pyrene or coked. Therefore, pyrene oxidation can be used to specify the mechanism of coke oxidation. Three types of reactions can be distinguished: (a) condensation of polyaromatic molecules, (b) oxidation of polyaromatics into aldehydes, ketones, acids and anhydrides and (c) decarbonylation or decarboxylation of oxygenated compounds, all these reactions involving protonic sites.