Ieeetim received a proofreading notice 20 days after his early visit. After the papers are submitted to ieeetim, the editorial team will make a preliminary evaluation and assign the papers that meet the requirements to the appropriate reviewers for review. The time from submitting a paper to receiving a proofreading notice varies with many factors, including the complexity of the paper, the response speed of reviewers and the workload of the editing team. Ieeetim will spend one month in each review cycle.