排序方式: 共有7条查询结果,搜索用时 15 毫秒
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目的探讨跟骨关节内骨折的手术治疗.方法随访2002-2004年治疗跟骨关节内骨折22例,平均随访18个月,骨折paleg分型Ⅱ型3例,Ⅲ型11例,Ⅳ型8例.手术方法跟骨外侧L型切口,切开复位钢板内固定术.结果按张铁良提出的跟骨骨折症状与功能评分系统评分优5例,良13例,可4例.结论跟骨关节内骨折通过切开复位钢板内固定术治疗效果满意,功能恢复良好. 相似文献
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In this study,a series of Co_3O_4/ mildly oxidized graphite oxide(mGO) nanocatalysts(Co_3O_4/ mGO-l,Co_3O_4/ mGO-2 and Co_3O_4/mGO-3) were synthesized through solvothermal method and used as a mediator for the heterogeneous peroxymonosulfate(PMS)activation.The performance of CO_3O_4 / mGO/PMS system was investigated using acid orange 7(AO7).Results showed that Co_3O_4/mGO-3 had the best degradation efficiency of AO7 and the removal rate was above 90%in about 6 min.The phenomenon indicated the catalytic activity of Co_3O_4/mGO composites was related to the oxidation degree of graphite oxide(GO).In addition,experiments showed the content of Co_3O_4 had an effect on the catalytic activity.The composites were characterized with X-ray powder diffraction(XRD),FTIR,Raman,X-ray photoelectron spectroscopy(XPS) and transmission electron microscopy(TEM).According to the charactrization and synergistic catalytic mechanism,the generation of Co—OH complexes found to be the initial step to activate PMS in the heterogeneous system of Co_3O_4/mGO hybrid. 相似文献
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文章比较了Co3O4/GO及Mn3O4/GO两种催化剂催化Oxone对NOx氧化效果的影响,考察了pH、Oxone投加量及温度等因素对催化Oxone氧化NOx效果的影响。研究结果表明:在相同的试验情况下,Co3O4/GO催化Oxone氧化NOx的效果要优于Mn3O4/GO。 相似文献
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