PRPP

With the support of information model of the recycling element , the PRAIM based on recycling elements is given as the basis for DFR and PRPP .

在给出回收元的信息模型的基础上给出了基于回收元的产品回收应用信息模型，为产品回收设计与回收分析奠定了基础。

The PRPP synthetase activity in BFU Es and CFU Es from bone marrows of mice was estimated by ion pair reversed phase HPLC ( IPr HPLC ), using isocratic elution .

采用离子对反相高效液相色谱法（IPrHPLC）的单液等度洗脱，测定了小鼠骨髓红系爆增性集落形成单位（BFU-Es）与红系集落形成单位（CFU-Es）的PRPP合成酶活性。

Based on the analysis of the research status in quo of DFR , this dissertation does some deeper research work including DFR method , Product Recycling Application Information Model ( PRAIM ), Product Recycling Process Planning ( PRPP ), assessment of product recyclability and so on .

本文在总结目前回收设计方法研究现状的基础上，对回收设计方法、产品回收应用信息模型、产品回收工艺规划和产品回收性能评估等问题进行了较深入的研究。