It is well-known that there exists a trade-off between crypto-period and affected risk, so the key derivation is not only constrained by the partial-order class relation but also by the time period while handling hierarchical key assignment in dynamic enterprises. In this paper, a new date-constraint hierarchical key assignment scheme, which does not make use of public key cryptosystem, is prop...

We consider the problem of common due window location scheduling on a single machine, where the processing times of jobs depend both on their starting times and positions in a sequence. The problem is to determine the optimal earliest due date, the due window size, and the job schedule simultaneously to minimize costs for earliness, tardiness, earliest due date assignment and due window size pe...

In this paper we compare simulated annealing and tabu search approaches to a single machine common due date assignment and scheduling problem with jobs available at different times. The objective is to minimize the total weighted sum of earliness, tardiness and due date costs.

We study a single-machine scheduling problem in a flexible framework where both job processing times and due dates are decision variables to be determined by the scheduler. The model can also be applied for quoting delivery times when some parts of the jobs may be outsourced. We analyze the problem with common due date assignment and a convex resource consumption function. We provide a bicriter...

one of discussions about bill of exchange is whether its consideration (provision fr.) , that is the money which is or will be payable in a due date, is transferred to its holder. acceptance or rejection of the transfer of consideration has many important consequences. there are various theories about the question among iranian as well as other lawyers. due to the similarities between the comme...

We study multitasking scheduling and due-window assignment problems in a single machine, which can be found various application domains. In environment, unfinished job always interrupts in-processing job. common due window assignment, the aim is to find optimal minimise value of earliness tardiness penalty. this paper, we two problems, where objective first problem earliness, tardiness, startin...