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健美操运动虽然与其他体育项目相比发展时间不长,由于具有一定的地域文化基础,可操作性比较强,所以越来越多的人将健美操运用于自己身体锻炼之中。文章通过文献资料法、调查法、访谈法对高校女大学生学习健美操运动的动机进行研究与分析。 相似文献
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文章首先对城市污水处理厂二级处理的工艺选择及设计方案进行了探讨然后对经常采用的处理工艺进行了技术经济比较。 相似文献
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固定化微生物技术是一种新兴的生物处理技术,具有较高的生物活性、固液易于分离、处理效率高等优点,在废水处理中具有独特的优势和巨大的潜力,已经在各种有机废水领域得到广泛应用,近年来其在处理石油石化废水的研究也不断深入。本文简单介绍了微生物固定化载体和方法及其在含油废水处理中的研究成果,并对其发展趋势进行了展望。 相似文献
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食品微生物检验技术和质量控制在保障食品安全方面发挥着不可替代的作用.本文对食品微生物检验质量控制存在的问题予以阐述,发现食品微生物检验质量在实验室检验环境、培养基、试剂等方面控制不到位,微生物检测技术创新力度不够,致使食品微生物检验质量受到影响,并在此基础上对食品微生物检验质量控制路径展开了探讨. 相似文献
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Abstract Previous research has shown that women, and especially young women, in this culture experience pressure to be thin. Although considerable research has been directed toward the investigation of body image and its relationship to psychological health and self‐image, the impact of body image on leisure behavior has not been adequately addressed, nor has body image received much attention as a potential leisure constraint. The purpose of this study was to investigate ways in which body image might function as a constraint to young women's participation in aerobic exercise classes. The study used both quantitative and qualitative methods, including a survey of 190 women undergraduate students and in‐depth interviews with a sub‐sample of 11 students. The qualitative data are the main focus of this analysis. The data indicated that body image did not seem to prevent participation or constrain levels of participation in aerobics. Nevertheless, body image concerns were shown to constrain the enjoyment of aerobics as a leisure activity, and this reduction of enjoyment was related to the clothing worn for aerobics and to competition over appearance and body weight among participants. The findings also showed that body image functioned as a constraint into participation in that body‐image‐related concerns were a major motivating factor exerting pressure on young women to participate in aerobics. In sum, the study suggested that body image can constrain leisure in some situations, although it is not a constraint in the traditional sense of preventing participation. The implications of these findings for the conceptualization of leisure constraints were discussed. Furthermore, some practical implications for the provision of aerobics classes were provided. 相似文献
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固定化微生物技术对受污染缓流水体底泥生态修复的研究 总被引:2,自引:0,他引:2
受污染缓流水体底泥中污染物质的长期缓慢释放是水体生态修复的难点.文章通过使用固定化微生物技术对磁湖底泥进行生态修复实验,结果表明采用固定化微生物技术有利于加速底泥中营养物质的降解与释放,对受污染底泥有明显的生态修复作用,对以后开展类似湖泊的治理工作有非常重要的意义. 相似文献
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随着社会经济的不断发展,人们逐渐提高了对食品安全的重视度,而食品微生物检验技术的应用频率逐渐提高,检验方法和技术也越来越精准。本文介绍食品微生物检验检测的主要内容,即食物的污染程度和内部的致病菌。探究PCR技术、生理生化技术、免疫学检测技术、质谱技术和光谱技术这5项新技术在食品微生物检验检测中的应用情况,并总结提升应用效果的措施。 相似文献