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We consider the problem of scheduling multi-task jobs on identical machines in parallel. Each multi-task job consists of one or more tasks. Each job has a release date and a due date. A task of a job can be processed by any one of the machines. Multiple machines can process the tasks of a job concurrently. The completion time of a job is the time at which all its individual tasks have been completed...
The time-domain measurement method can reflect the pulse characteristics and the generation mechanism of the corona-generated audible noise. In this paper, the time-domain waveforms of audible noise (AN) generated by single corona discharge under AC voltage in a coaxial geometry are measured and the influence of background noise is removed on the base of time-domain test results. Different from previous...
In order to study the effect of humidity on the variations of positive DC corona discharge, an artificial climate chamber was developed to perform corona experiments. Based on the testing system, the photon counting rate, the total electric field strength and the ion current density on the ground level were measured by the UV imaging detector, the rotating DC electric field mill and the Wilson plate...
Financial fraud is a criminal act, which violates the law, rules or policy to gain unauthorized financial benefit. The major consequences are loss of billions of dollars each year, investor confidence or corporate reputation. A study area called Financial Fraud Detection (FFD) is obligatory, in order to prevent the destructive results caused by financial fraud. In this study, we propose a new method...
In this paper, we consider the coupled-task scheduling problem, to schedule n jobs on a single machine. Each job consists of two coupled tasks which have to be processed in a predetermined order and at exactly a specified interval apart. The objective is to minimize the makespan. The problem was shown to be NP-hard in the strong sense even for some special cases. We analyze some heuristics with worst-case...
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