We develop the first approximation algorithms with worst-case performance guarantees for periodic-review perishable inventory systems with general product lifetime, for both backlogging and lost-sales models. The demand process can be non-stationary and correlated over time, capturing such features as demand seasonality and forecast updates. The optimal control policy for such systems is notori...

This paper explores the process of product replacement within management consultancies. Drawing on product marketing literature we argue that main knowledge suppliers do not simply regard their knowledge commodities as inherently perishable during an alleged downturn phase on the knowledge market. Rather, our study reveals that management consultants may follow a variety of alternative strategi...

because of being much perishable product as well as having low per capita consumption, much study on shrimp and its different supplying methods such as canned shrimp is needed to improve per capita consumption of seafood especially in case of shrimp. in this study, the effect of different pre-cooking methods on quality of canned penaeus semisulcatus was studied. although frying and baking metho...