By integrating the backmixing theory of reaction engineering with predictive model of river pollution in environmental quality assessment study , the predictively longitudinal dispersion model of river quality was got and analyzed 摘要将反应工程学的返混理论与环境质量评价学的河水污染预测模型结合，得出了河流水质预测纵向扩散模型，并给出了解析解。
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This thesis aims at the reason why the bad assets of state - owned commercial banks are formed as well as the method and necessity of further improving the management , and predictively renders the new mode and new system on centralized management of the bad assets of state - owned commercial banks through analyzing the problems in traditional management mode under new situation , and in combination with the actual situation of the management of bad assets of state - owned commercial banks 本文从国有商业银行不良资产形成的原因及对其进一步改进管理方式和提高管理水平的必要性入手，通过对新形势下传统管理模式弊端的分析，结合国有商业银行不良资产管理的实际情况，前瞻性地提出了对国有商业银行不良资产进行集中管理的新模式、新制度。
