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周传家 《北京联合大学学报(人文社会科学版)》2007,5(3):21-25
伴随着经济全球化趋势的加快,西方文化的强势输入和新兴文化的冲击,民族戏曲的生存环境日益恶化,处于危机状态之中。为了保留民族文化的根须和火种,守护民族精神的家园,维护民族文化主权和国家文化安全,抵御西方强势文化的渗透,必须坚定地对民族戏曲实施"活态保护"的策略。实施"活态保护",必须强调民族戏曲的原创性(鲜活的舞台性和立体性),认真进行抢救、恢复和重建。强化民族戏曲的主体性,保护传承人,推星造星,实行人才来源多样化,吸收壮大戏曲志愿者队伍。突出民族戏曲的双向接受性,贴近时代,贴近生活,贴近观众,扩大民族戏曲的群众基础。坚持发展的观点,刷新文化精神,既重"硬件",又重"软件",保护与利用兼顾。 相似文献
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The reliability of a treatment process is addressed in terms of achieving a regulatory effluent concentration standard and the design safety factors associated with the treatment process. This methodology was then applied to two aqueous hazardous waste treatment processes: packed tower aeration and activated sludge (aerobic) biological treatment. The designs achieving 95 percent reliability were compared with those designs based on conventional practice to determine their patterns of conservatism. Scoping-level treatment costs were also related to reliability levels for these treatment processes. The results indicate that the reliability levels for the physical/chemical treatment process (packed tower aeration) based on the deterministic safety factors range from 80 percent to over 99 percent, whereas those for the biological treatment process range from near 0 percent to over 99 percent, depending on the compound evaluated. Increases in reliability per unit increase in treatment costs are most pronounced at lower reliability levels (less than about 80 percent) than at the higher reliability levels (greater than 90 percent, indicating a point of diminishing returns. Additional research focused on process parameters that presently contain large uncertainties may reduce those uncertainties, with attending increases in the reliability levels of the treatment processes. 相似文献
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林雨露 《江汉大学学报(人文科学版)》1995,(3)
论述了化学反应速率与温度的关系,推导了可逆放热反应的最佳反应温度与转化率的一般关系,讨论了可逆放热催化反应的最佳反应温度不仅与转化率有关,还与催化剂的活性大小有关。 相似文献
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对活性炭吸附SO2进行了实验研究。结果表明:随着烟气流量的增加、穿透时间减少,当烟气流量在50—100l/h时吸附效果较好,穿透时间在55min以上;随着氧气含量的增加,穿透时间越长,氧气含量为10—20%时吸附效果较好;床层出口温度在20℃-70℃时,随着温度升高穿透时间减少,但在70℃-99.5℃时,穿透时间又有所回升;烟气中含水蒸气时,SO2生成H2SO4的转化率大大提高,当夹带水蒸气的空气流量占总烟气流量的25%时,活性炭的脱硫效率反而会下降;NOx存在对SO2的吸附影响并不明显;活性炭经高温改性和KOH改性后,吸附效果有一定程度提高。 相似文献
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在活性炭存在下,利用辉光放电等离子体技术对甲基紫进行了降解处理,考察了辉光放电电压、浓度、Fe2 等因素对甲基紫的降解效果的影响。实验结果表明,活性炭和辉光放电等离子体技术联用能有效的提高甲基紫的降解效果。实验数据表明,辉光放电产生的.OH对甲基紫的降解起主要的作用。 相似文献