An economical backup warning strategy for a hard disk
A mathematical model for an optimal appointed delivery date on a home delivery market
In recent years, the home delivery market has rapidly been growing since customers can purchase a variety of products very easily via Internet. At the same time, however, customers tend to switch from a supplier to another seeking for better service for them. For this reason, it is necessary for suppliers to enclose their customers by means of various kinds of service and strategy. An appointed delivery date of a product ordered by a customer is one of important factors of supplier’s services. From...
A theoretical model for testing new product sales velocity at small format retail stores
The present study proposes a theoretical model to test sales velocity for new products introduced in small format retail stores. The model is designed to distinguish fast moving products within a relatively short period. Under the proposed model, the sales of a newly introduced product are monitored for a prespecified period , e.g., one week, and if the number of items sold over is equal to a prespecified integer or more, the product is considered a fast moving product and is carried over to...
A mathematical model for an optimal appointed delivery date on a home delivery market
In recent years, the home delivery market has rapidly been growing since customers can purchase a variety of products very easily Internet. At the same time, however, customers tend to switch from a supplier to another seeking for better service for them. For this reason, it is necessary for suppliers to enclose their customers by means of various kinds of service and strategy. An appointed delivery date of a product ordered by a customer is one of important factors of supplier's services. From...
A Theoretical Model for Testing New Product Sales Velocity at Small Format Retail Stores
The present study proposes a theoretical model to test sales velocity for new products introduced in small format retail stores. The model is designed to distinguish fast moving products within a relatively short period. Under the proposed model, the sales of a newly introduced product are monitored for a prespecified period , , one week, and if the number of items sold over is equal to a prespecified integer or more, the product is considered a fast moving product and is carried over to the...
An extended opportunity-based age replacement policy
An Extended Opportunity-Based Age Replacement Policy
The present study proposes an extended opportunity-based age replacement policy where opportunities occur according to a Poisson process. When the age, of the system satisfies for a prespecified value , a corrective replacement is conducted if the objective system fails. In case satisfies for another prespecified value , we take an opportunity to preventively replace the system by a new one with probability , and do not take the opportunity with probability . At the moment reaches , a preventive...
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