机构

• 武汉岩土力学研究所 [6]
• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [1]
• 新疆天文台 [1]

采集方式

• OAI收割 [10]

内容类型

• 期刊论文 [9]
• 会议论文 [1]

发表日期

• 2025 [1]
• 2023 [2]
• 2019 [1]
• 2018 [1]
• 2017 [1]
• 2016 [1]
• 更多

学科主题

筛选

浏览/检索结果: 共10条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Rising South, shrinking North: Paradoxically increased unevenness in the global urban economic system 期刊论文  OAI收割 HABITAT INTERNATIONAL, 2025, 卷号: 156, 页码: 103254 作者:  Huang, Zhenyu;  Tan, Minghong;  Yang, Xue;  Wang, Xue;  Xin, Liangjie   |  收藏  |  浏览/下载：4/0  |  提交时间：2025/02/24 Global urban economic system  Increased unevenness  Regional disparities   Measurement and Correction of Pointing Error Caused by Radio Telescope Alidade Deformation based on Biaxial Inclination Sensor 期刊论文  OAI收割 MICROMACHINES, 2023, 卷号: 14, 期号: 7, 页码: 14 作者:  Xu, Qian;  Xue, Fei;  Wang, Hui;  Yi, Letian   |  收藏  |  浏览/下载：10/0  |  提交时间：2023/11/21 inclinometer  pointing errors  radio telescope  alidade  thermal gradients  track unevenness   Uneven impacts of COVID-19 on residents' utilization of urban parks: A case study of Guangzhou, China 期刊论文  OAI收割 APPLIED GEOGRAPHY, 2023, 卷号: 153 作者:  Li, Li;  Li, Xiaojian;  Niu, Ning;  He, Jialin   |  收藏  |  浏览/下载：28/0  |  提交时间：2023/04/06 Unevenness  Urban park utilization  COVID-19  Guangzhou   Predicting the shear characteristics of rock joints with asperity degradation and debris backfilling under cyclic loading conditions 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2019, 卷号: 120, 期号: -, 页码: 108-118 作者:  Li, Yingchun;  Wu, Wei;  Tang, Chun'an;  Liu, Bo   |  收藏  |  浏览/下载：31/0  |  提交时间：2020/04/08 Rock joint  Cyclic shear  Waviness and unevenness  Asperity degradation  Debris backfilling   Evaluation and Analysis of the Traffic Load-Induced Settlement of Roads on Soft Subsoils with Low Embankments 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF GEOMECHANICS, 2018, 卷号: 18, 期号: 6, 页码: - 作者:  Lu, Zheng;  Fang, Ran;  Yao, Hailin;  Hu, Zhi;  Liu, Jie   |  收藏  |  浏览/下载：26/0  |  提交时间：2018/06/05 Dynamic triaxial test  Soft subsoil  Cumulative settlement  Pavement unevenness  Moving vehicle   Evaluation of Additional Dynamic Load Generated by Pavement Unevenness Using a Vehicle-Road Coupled Model 期刊论文  OAI收割 JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES, 2017, 卷号: 5, 期号: 6, 页码: 597-604 作者:  Jie, Liu;  Zheng, Lu;  Yao Hailin;  Cheng, Dong   |  收藏  |  浏览/下载：27/0  |  提交时间：2018/06/05 Additional dynamic load  Pavement unevenness  Coupling vibration  Moving vehicle  Dynamic response   An analytical method for evaluating highway embankment responses with consideration of dynamic wheel-pavement interactions 期刊论文  OAI收割 SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2016, 卷号: 83, 页码: 135-147 作者:  Liu, Jie;  Lu, Zheng;  Hu, Zhi;  Yao, Hailin;  Zhan, Yongxiang   |  收藏  |  浏览/下载：32/0  |  提交时间：2018/06/05 Highway  Pavement unevenness  Wheel-pavement interaction  Stiffness matrix method  Moving vehicle   A Quasi-Static Method for Predicting Vehicle-Road Coupling Vibration Generated by Pavement Unevenness 期刊论文  OAI收割 JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES, 2015, 卷号: 3, 期号: 2, 页码: 223-236 作者:  Lu, Zheng;  Wang, Hua;  Yao, Hailin;  Liu, Jie;  Hu, Zhi   |  收藏  |  浏览/下载：18/0  |  提交时间：2018/06/05 coupling vibration  Quasi-static method  Pavement unevenness  Moving vehicle  Dynamic response   Effects of the dynamic vehicle-road interaction on the pavement vibration due to road traffic 期刊论文  OAI收割 JOURNAL OF VIBROENGINEERING, 2013, 卷号: 15, 期号: 3, 页码: 1291-1301 作者:  Lu, Zheng;  Yao, Hailin   |  收藏  |  浏览/下载：32/0  |  提交时间：2018/06/05 vibration  vehicle load  pavement unevenness  interaction  Fourier transform  resonance   The spectral feature analysis of semiconductor thin disk laser (EI CONFERENCE) 会议论文  OAI收割 Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China 作者:  Li J.;  Wang L.-J.;  Wang L.-J.;  Ning Y.-Q.;  Li J. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 The semiconductor thin disk laser is a new type of semiconductor laser. This work gives the basic operation function of semiconductor disk laser  and analyses the heat effect by the experimentally measured photoluminescence spectrum of the laser chip at different pump power and different temperature. We can see that: with increasing pump power  the thermal effects of the gain material becomes seriously and causes the saturation of carrier lifetime  so the electron-hole pair created in the absorbtion layer have no enough time to rate to one of the wells  and the non-radiative recombination happens in the barrier. When the thermal effects becomes stronger  the chip will not lasing. This phenomenon is from the smaller energy offset between barrier and quantum well. We optimize the original structure design and experimental technology. A non-absorbing AlGaAs layer who is transparent to the pumping and laser wavelength is added to confine the carriers in the quantum wells. At the same time a DBR with double reflecting band is induced to improve the absorbing efficiency of the pumping light. The single QW is replaced by the three narrow QWs  This three QWs structure can add the quantum state of QW  increase the recombination probability of carriers in the QWs and reduce the heat effect. The chemical etch equipment is also improved to control the surface unevenness to be within 50 nm.