The supervision and control rules changed the time limit for going through formalities for returning articles from 6 months to 3 months , to avoid backlogging of returned goods due to increase in passenger flow which will place the customs in a pinch .
Some inventory models for non-instantaneous deteriorating items with demand rate dependent inventory level and partial backlogging .
需求率与存货水准有关且部份欠拨的非瞬间退化物品存货模式。
This paper studies the production policy under trade credit , reworking of imperfect quality items , and partial backlogging .
本研究主要探讨信用交易、不良品重工与部分欠拨下的生产政策。
In model 1 , we consider trade credit and reworking of imperfect quality items into the production policy ; afterward , we extend model 1 to consider partial backlogging and then establish model 2 .