Open Access
表2
测试用户特征
| 学历 | 值 |
|---|---|
| TD_id | 测试人员编号 |
| TD_TYPE | 测试设备类型 |
| TD_OPERATESYSTEM | 测试设备操作系统 |
| TD_CPU | 测试设备CPU型号 |
| TD_SCREENSIZE | 设备屏幕大小 |
| TD_BRAND | 设备品牌 |
| TD_MODEL | 设备型号 |
| TD_RAM | 设备运行内存 |
| TD_ROM | 设备存储空间 |
| TU_SEX | 性别 |
| TU_AGE | 年龄 |
| TU_MARRIAGE | 婚姻 |
| TU_CITY | 所在城市 |
| TU_EDUCATION | 学历 |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.