土地开发程度修正及在基准地价更新中的应用--以石家庄市为例

土地开发程度修正是国土资源部《城镇土地估价规程》中规定的内容，是基准地价评估中常用的一种修正方法．提出了土地开发程度修正的主要方法——系数修正法、加减补正修正法，并对土地开发程度修正在基准地价更新中的应用进行了研究．     

运动、氧化应激与红细胞膜流动性

红细胞膜对于红细胞正常结构和功能的维持尤为重要，其与运动性疲劳的关系日益受到重视，笔者就运动与氧化应激、氧化损伤与红细胞膜流动性以及与红细胞功能的关系作一简要综述。     

光催化剂可见光化研究进展

 光催化剂可将光能转变为化学能,可用于使水分解制氢及将环境中的有害物还原氧化为无害物质等,其应用前景十分广阔.而阻碍其应用的是不能有效地利用太阳光,因此研究开发可见光化的光催化剂就成为当前光催化剂研究中最重要的课题.本文简述了光催化剂的作用原理及较系统地介绍了可见光化光催化剂目前的研究现状及成果.     

仿生氧化偶联合成苯并二氢呋喃新木脂素 Balanophonin

以廉价易得的香草醛和丙二酸为原料，经knoevenagel缩合反应、酯化、仿生氧化偶联、还原和氧化等5步反应(总产率22％)制得苯并二氢呋喃新木脂素Balanophonin 1，其中两分子阿魏酸甲酯5经Ag2O仿生氧化偶联成为它的二聚体6是本合成路线的关键步骤。     

微波等离子体用于橡胶表面改性处理的研究

作者提出了一种微波低温微波等离子体对橡胶表面进行改性处理的方法，并分析了橡胶表面改性处理的工作机理。通过橡胶表面接触角和光电子能谱（XPS）的测定，发现经微波等离子体处理后的橡胶试片，其表面湿润性得到显著改善，表面极性基团大大增加。拉伸剪切强度试验显示，经微波等离子体处理后的橡胶试片与粘合剂和粘合强度显著增大。     

Effect of hydrogen peroxide on the binding of Merocyanine 540 to human erythrocytes

The fluorescent dye Merocyanine 540 (MC540) is often used as a probe to monitor the molecular packing of phospholipids in the outer leaflet of biomembranes. In a previous study we showed that the increased staining of erythrocytes with a perturbed membrane structure was mainly due to an increase in the fluorescence yield of cell-bound MC540, rather than to an increase of the number of bound molecules. Erythrocytes and ghosts exposed to continuous fluxes of H₂O₂ exhibited pronounced lipid peroxidation. Further, red blood cells subjected to this form of oxidative stress also showed increased staining with MC540. It appeared that this was caused by a strong increase in binding of MC540, together with a slight red shift of the fluorescence emission maximum and a small increase in the fluorescence yield of bound MC540. The changed MC540 binding characteristics were not observed when lipid peroxidation was suppressed by the presence of the antioxidant BHT in the incubation medium. However, open ghosts exposed to H₂O₂ showed no increase of MC540 binding, excluding a direct involvement of lipid peroxidation. Measurement of fluorescence emission spectra and gel filtration studies showed that MC540 can bind to H₂O₂-exposed hemoglobin. Experiments with erythrocytes lysed in hypotonic medium after exposure to H₂O₂ revealed that peroxidation of lipids with H₂O₂ induced a non-specific permeabilization of the plasma membrane to MC540, thereby allowing MC540 to bind to the oxidatively denatured, more hydrophobic hemoglobin. These results indicate that conclusions about packing of phospholipids in the outer leaflet of the membrane based on increased MC540-staining should be drawn with care. Received 27 September 1996; received after revision 5 November 1996; accepted 27 November 1996     

搅拌磨机械化学改性制备复合粉体的研究

根据搅拌磨超细粉碎的特殊工作原理和高效性，利用搅拌磨的机械化学效应实现超细—改进一体化制备了ＳｉＣ－Ｍ／滑石粉复合粉体，研究了矿浆浓度、改性剂用量对复合粉体粒度及改性剂包覆量的影响．研究结果表明，这种复合粉体粒度分布均匀、工艺简单、活性好、性能稳定．复合粉体填充ＰＰ的制品性能比单纯Ｍ／滑石粉填充ＰＰ的更好．４０％复合粉体填充ＰＰ制备的材料成功地应用于汽车零部件，性能指标达到上海大众汽车公司的标准，应用效果十分显著．     

WC—Co硬质合金的MEVVA源离子注入表面改性研究

采用了卢瑟福背散射，俄歇电子能谱和Ｘ射线衍射等现代表面分析技术，研究了Ｔａ离子米注入和Ｔａ＋Ｃ双注入的钴粘结碳化钨硬质合金表面的微化学和微结构变化。在此基础上，进行了进口和国产的ＷＣ－Ｃｏ刀具的Ｔａ注入和Ｔａ＋Ｃ双注入的表面改性研究，取得了明显的应用效果。     

牛血清白蛋白对牛红细胞SOD的化学修饰

应用戊二醛交联法研究了牛血甭白蛋白对牛红细胞ＳＯＤ的化学修饰，修饰酶活力回收率为５１．２％，氨基修饰率为３３．１％，ＳＯＤ经牛血清白蛋白修饰后提高了耐热、耐酸碱稳定性，并保持良好贮藏稳定性。