中国科学院机构知识库网格系统: 检索

FDEM numerical study of the influence law of geostress on state and pressure of tunnel surrounding rock 期刊论文 OAI收割
FRONTIERS IN ECOLOGY AND EVOLUTION, 2023, 卷号: 11, 页码: 19
作者: Hu, Bo

|

收藏 | 浏览/下载：10/0 | 提交时间：2025/06/27

FDEM surrounding rock pressure design value state of surrounding rock geostress

Discounted Iterative Adaptive Critic Designs With Novel Stability Analysis for Tracking Control 期刊论文 OAI收割
IEEE/CAA Journal of Automatica Sinica, 2022, 卷号: 9, 期号: 7, 页码: 1262-1272
作者: Mingming Ha; Ding Wang; Derong Liu

|

收藏 | 浏览/下载：89/0 | 提交时间：2022/06/27

Adaptive critic design adaptive dynamic programming (ADP) approximate dynamic programming discrete-time nonlinear systems reinforcement learning stability analysis tracking control value iteration (VI)

Neuro-Optimal Trajectory Tracking With Value Iteration of Discrete-Time Nonlinear Dynamics 期刊论文 OAI收割
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, 2021, 页码: 12
作者: Wang, Ding; Ha, Mingming; Cheng, Long

|

收藏 | 浏览/下载：36/0 | 提交时间：2022/01/27

Trajectory Heuristic algorithms Convergence Trajectory tracking Stability criteria Optimal control Dynamic programming Adaptive critic design discrete-time nonlinear plants neuro-optimal trajectory tracking uniformly ultimately bounded stability value iteration

Extreme-value sampling design is cost-beneficial only with a valid statistical approach for exposure-secondary outcome association analyses 期刊论文 OAI收割
STATISTICAL METHODS IN MEDICAL RESEARCH, 2020, 卷号: 29, 期号: 2, 页码: 466-480
作者: Zhang, Hang; Bi, Wenjian; Cui, Yuehua; Chen, Honglei; Chen, Jinbo

|

收藏 | 浏览/下载：32/0 | 提交时间：2020/05/24

Secondary outcome exposure extreme-value sampling design primary outcome cost-effective

Adaptive dynamic programming for robust neural control of unknown continuous-time non-linear systems 期刊论文 OAI收割
IET CONTROL THEORY AND APPLICATIONS, 2017, 卷号: 11, 期号: 14, 页码: 2307-2316
作者: Yang, Xiong; He, Haibo; Liu, Derong; Zhu, Yuanheng

|

收藏 | 浏览/下载：42/0 | 提交时间：2017/09/13

Dynamic Programming Robust Control Neurocontrollers Continuous Time Systems Control System Synthesis Nonlinear Control Systems Optimal Control Function Approximation Monte Carlo Methods Closed Loop Systems Asymptotic Stability Adaptive Dynamic Programming Robust Neural Control Design Unknown Continuous-time Nonlinear Systems Ct Nonlinear Systems Adp-based Robust Neural Control Scheme Robust Nonlinear Control Problem Nonlinear Optimal Control Problem Nominal System Adp Algorithm Actor-critic Dual Networks Control Policy Approximation Value Function Approximation Actor Neural Network Weights Critic Nn Weights Monte Carlo Integration Method Closed-loop System Asymptotically Stability

Extreme snow hazard and ground snow load for China 期刊论文 iSwitch采集
NATURAL HAZARDS, 2016, 卷号: 84, 期号: 3, 页码: 2095-2120
作者: Mo, H. M.; Dai, L. Y.; Fan, F.; Che, T.; Hong, H. P.

收藏 | 浏览/下载：201/0 | 提交时间：2019/10/09

Extreme value analysis Snow depth Ground snow load Snowpack bulk density Design code

Application of interferometry measurement in large-scale optic-electrical theodolite (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
作者: Sun Z.

收藏 | 浏览/下载：54/0 | 提交时间：2013/03/25

Interferometry is a very important method in high accuracy measurement for optical system. This article briefly introduced the conception of interferometry and took a product of 4D Technology as an example to carry on the measurement. A large-scale optic-electrical Theodolite in assemblage was measured and its primary mirror was 400mm in diameter. With the analysis of the results some micro adjustments of the mechanical structure proceed and it made the system perform better. The final results of the whole system is 1.061 in P-V value and 0.1136 in RMS value (=632.8nm) this meets the demand of optical design and practical application. The result demonstrates that interferometry is a good way to be utilized and optimize in the procedure of assemble. (2013) Trans Tech Publications Switzerland.

Effect of design parameters on the reduction of top piston ring friction (EI CONFERENCE) 会议论文 OAI收割
2nd International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2012, September 21, 2012 - September 23, 2012, Chongqing, China
作者: Wang P.

收藏 | 浏览/下载：153/0 | 提交时间：2013/03/25

In order to reduce ring-liner interface friction power loss this paper focuses on the structure parameters of the top ring and investigates how the value of those parameters will influence top ring-liner friction power loss and the minimum thickness of oil film at top ring-liner interface. A mixed lubrication model is developed to simulate the effect of varying design parameters on ring-liner friction. Case study shows that ring-liner friction power loss will be reduced with decreased axial ring height and barrel height. This study provides a theoretical basis for design the top ring with reduced friction power loss at ring-liner interface. (2013) Trans Tech Publications Switzerland.

The design and implementation of temperature acquisition system based on PXI (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China
作者: Wang J.

收藏 | 浏览/下载：41/0 | 提交时间：2013/03/25

This paper introduces the design of temperature acquisition system which is based on the PXI-6251 DAQ device thermocouple acquisition module SCXI-1102 and the LabVIEW program language of NI. The design of temperature collection software and the configuration of hardware are described in details. The software developed in LabVIEW program language can acquire temperature data rapidly what's more the acquired data can be displayed real timely and saved to the disk. It is proved that the system is easy to practical use and can extraction mean square value and mean value after gathering the stable high-speed temperature. The function can be extended according to the demands of users. 2012 IEEE.

Research on load-bearing characteristics of precision air-bearing rotary stage (EI CONFERENCE) 会议论文 OAI收割
3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012, March 27, 2012 - March 29, 2012, Xiamen, China
作者: Wang L.; Wang L.; Wang L.; Lin J.

收藏 | 浏览/下载：135/0 | 提交时间：2013/03/25

Air-bearing is a core component of air-bearing rotary stage. The weakness that the air-bearing has the low load capacity and stiffness has been concerned about by domestic and foreign scholars. So how to improve the load capacity and stiffness has become a serious problem. In order to improve the load capacity and stiffness of the air-bearing rotary stage in this paper we improved structure of Zhang Wenjie and others' high-precision direct-drive air-bearing rotary stage. The gas film of air-bearing has been meshed by GAMBIT software and we use FLUENT software to obtain the carrying capacity features of the gas film. Finally the structural static force of the precision air-bearing rotary stage will be analyzed by ANSYS software. The analysis results show that: the structural design of the precision air-bearing rotary stage is reasonable and this structure can provide a larger range of loads. Even in heavy load conditions a larger deformation will not occur any more. It has a good practical value and also can be widely used in high precision equipments. (2012) Trans Tech Publications.