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浏览/检索结果: 共7条，第1-7条 帮助 限定条件 发表日期：2020     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Research on multi-frequency ultrasonic scanning detecting technology of cavity in the test borehole 期刊论文 BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2020, 页码: 16 作者:  Wang, Jinchao;  Wang, Chuanying;  Huang, Xiaohua;  Zou, Junpeng 收藏  |  浏览/下载：18/0  |  提交时间：2021/05/25 Multi-frequency ultrasound  Cavity  Rock velocity  Structural plane  Stability   Detection and analysis of Galileo signal in space anomalies from 2017 to 2018 期刊论文 IET RADAR SONAR AND NAVIGATION, 2020, 卷号: 14, 期号: 11, 页码: 1690-1696 作者:  Fan, Lihong;  Tu, Rui;  Zhang, Rui;  Han, Junqiang;  Zhang, Pengfei 收藏  |  浏览/下载：23/0  |  提交时间：2021/11/29 distance measurement  error analysis  satellite navigation  aircraft landing guidance  radio receivers  Galileo signal  space anomalies  broadcast ephemeris  user navigation  SIS anomaly  advanced receiver autonomous integrity monitoring  precise ephemeris  SIS error  healthy Galileo satellites  corresponding detection thresholds  satellite SIS anomalies  satellite clock error  SIS stability  time 7  0 hour  time 2  5 hour  time 50  0 hour  time 4  5 hour   Sex-differential associations between cognitive impairments and white matter abnormalities in first episode and drug-naive schizophrenia 期刊论文 EARLY INTERVENTION IN PSYCHIATRY, 2020, 页码: 9 作者:  Yang, Mi;  Gao, Shan;  Xiong, Weisen;  Zhang, Xiang Yang 收藏  |  浏览/下载：23/0  |  提交时间：2020/11/30 cognitive impairment  first episode  schizophrenia  sex difference  white matter   METHOD FOR STARTING TRUSTED EMBEDDED PLATFORM BASED ON TPM INDUSTRIAL CONTROL 专利 申请日期: 2020-02-06, 作者:  Yu HB(于海斌);  Zeng P(曾鹏);  Shang WL(尚文利);  Liu XD(刘贤达);  Zhao JM(赵剑明) 收藏  |  浏览/下载：26/0  |  提交时间：2020/07/04 SECURITY PROCESSING UNIT OF PLC AND BUS ARBITRATION METHOD THEREOF 专利 申请日期: 2020-02-06, 公开日期: 2021-09-28 作者:  Yu HB(于海斌);  Zeng P(曾鹏);  Shang WL(尚文利);  Liu XD(刘贤达);  Zhao JM(赵剑明) 收藏  |  浏览/下载：24/0  |  提交时间：2020/07/04 Security processing unit of PLC and bus arbitration method thereof 专利 申请日期: 2020-02-06, 公开日期: 2021-09-28 作者:  Yu HB(于海斌);  Zeng P(曾鹏);  Liu XD(刘贤达);  Zhao JM(赵剑明);  Wang TY(王天宇) 收藏  |  浏览/下载：12/0  |  提交时间：2021/10/22 Estimability analysis of differential inter-system biases and differential inter-frequency biases for dual-frequency GPS and BDS combined RTK 期刊论文 MEASUREMENT SCIENCE AND TECHNOLOGY, 2020, 卷号: 31, 期号: 2, 页码: 18 作者:  Liu, Jinhai;  Tu, Rui;  Han, Junqiang;  Zhang, Rui;  Zhang, Pengfei 收藏  |  浏览/下载：14/0  |  提交时间：2020/11/10 BeiDou navigation satellite system  differential inter-system bias  Differential inter-frequency bias  GPS