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Complexity of minimize total weighted average completion time scheduling problems with release times
flow-shop scheduling problem transportation delays
2010/9/20
The paper considers the problem of scheduling n jobs in a two-machine flow-shop to minimize the weighted sum of completion times. Between the completion of an operation and the beginning of the next o...
Life expectancy is the death-weighted average of the reciprocal of the survival-specific force of mortality
age-structured population force of mortality Jensen´ s inequality life expectancy life table longevity negative exponential distribution survival USA
2010/1/29
The hazard of mortality is usually presented as a function of age, but can be defined as a function of the fraction of survivors. This definition enables us to derive new relationships for life expect...