中国科学院机构知识库网格系统: 检索

A Transformer-Based Deep Learning Model for Successful Predictions of the 2021 Second-Year La Nina Condition 期刊论文 OAI收割
GEOPHYSICAL RESEARCH LETTERS, 2023, 卷号: 50, 期号: 12, 页码: 10
作者: Gao, Chuan; Zhou, Lu; Zhang, Rong-Hua

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收藏 | 浏览/下载：19/0 | 提交时间：2023/11/30

the 2021 second-year cooling condition a transformer-based deep learning model 3D multivariate prediction subsurface thermal effect comparison with dynamical models

On the Optimality of Tape Merge of Two Lists with Similar Size 期刊论文 OAI收割
ALGORITHMICA, 2020, 页码: 26
作者: Li, Qian; Sun, Xiaoming; Zhang, Jialin

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收藏 | 浏览/下载：14/0 | 提交时间：2020/12/10

Comparison-based model Tape merge Optimal merge Adversary method

Comparing simulated atmospheric carbon dioxide concentration with GOSAT retrievals SCI/SSCI论文 OAI收割
2015
作者: Zhang H. F.; Chen, B. Z.; Xu, G.; Yan, J. W.; Che, M. L.

收藏 | 浏览/下载：19/0 | 提交时间：2015/12/09

CTDAS model Satellite-based CO2 concentration GOSAT Comparison Inversion method data assimilation system co2 observations south-asia global co2 china fluxes algorithm exchange sinks ecosystem

Comparing simulated atmospheric carbon dioxide concentration with GOSAT retrievals 期刊论文 OAI收割
Science Bulletin, 2015, 卷号: 60, 期号: 3, 页码: 380-386
作者: Zhang H. F.; Chen, B. Z.; Xu, G.; Yan, J. W.; Che, M. L.

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收藏 | 浏览/下载：22/0 | 提交时间：2015/12/09

Ctdas Model Satellite-based Co2 Concentration Gosat Comparison Inversion Method Data Assimilation System Co2 Observations South-asia Global Co2 China Fluxes Algorithm Exchange Sinks Ecosystem

The design of space scanning mirror control system based on optimal tracking controller (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Electrical Insulating Materials and Electrical Engineering, EIMEE 2012, May 25, 2012 - May 27, 2012, Shenyang, Liaoning, China
作者: Zhang P.

收藏 | 浏览/下载：19/0 | 提交时间：2013/03/25

Control system of space scanning mirror has high requirement of scanning accuracy. The use of optimal tracking controller simulation experiment of the control system based on optimal tracking controller is carried out. The simulation result instead of traditional PID controller the control system based on optimal tracking controller is designed in comparison with the system based on a PID controller can effectively improve the scanning accuracy of space scanning mirror control system. State space model of the control system is established shows that the scanning mirror control system using optimal tracking controller instead of PID controller has higher scanning accuracy and faster response. (2012) Trans Tech Publications Switzerland.

Design of motion adjusting system for space camera based on ultrasonic motor (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者: Sun Z.

收藏 | 浏览/下载：84/0 | 提交时间：2013/03/25

Drift angle is a transverse intersection angle of vector of image motion of the space camera. Adjusting the angle could reduce the influence on image quality. Ultrasonic motor (USM) is a new type of actuator using ultrasonic wave stimulated by piezoelectric ceramics. They have many advantages in comparison with conventional electromagnetic motors. In this paper some improvement was designed for control system of drift adjusting mechanism. Based on ultrasonic motor T-60 was designed the drift adjusting system which is composed of the drift adjusting mechanical frame the ultrasonic motor the driver of Ultrasonic Motor the photoelectric encoder and the drift adjusting controller. The TMS320F28335 DSP was adopted as the calculation and control processor photoelectric encoder was used as sensor of position closed loop system and the voltage driving circuit designed as generator of ultrasonic wave. It was built the mathematic model of drive circuit of the ultrasonic motor T-60 using matlab modules. In order to verify the validity of the drift adjusting system was introduced the source of the disturbance and made simulation analysis. It designed the control systems of motor drive for drift adjusting system with the improved PID control. The drift angle adjusting system has such advantages as the small space simple configuration high position control precision fine repeatability self locking property and low powers. It showed that the system could accomplish the mission of drift angle adjusting excellent. 2011 SPIE.

A fuzzy control method based on information integration for double inverted pendulum (EI CONFERENCE) 会议论文 OAI收割
2011 2nd International Conference on Digital Manufacturing and Automation, ICDMA 2011, August 5, 2011 - August 7, 2011, Zhangjiajie, Hunan, China
作者: Fan Y.

收藏 | 浏览/下载：59/0 | 提交时间：2013/03/25

This article proposes a new fuzzy controller based on information integration. The mathematical model of Linear double inverted pendulum has been studied and estabLished with dynamics analytical method and LQR theory is used to design the optimal Linear inverted pendulum controller then the integration technology is used to design the variable parameters self-tuning fuzzy controller. Thereby the fuzzy controller input variable dimension and the number of fuzzy control rules have been extremely reduced. Two controllers are designed for inverted pendulum system control and the comparison simulation experiments have been done. The results show that the controllers can both reaLize good control and the fuzzy controller has higher precision faster response better stabiLity and robustness. 2011 IEEE.

A Partially Linear Tree-based Regression Model for Multivariate Outcomes 期刊论文 OAI收割
BIOMETRICS, 2010, 卷号: 66, 期号: 1, 页码: 89-96
作者: Yu, Kai; Wheeler, William; Li, Qizhai; Bergen, Andrew W.; Caporaso, Neil

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收藏 | 浏览/下载：19/0 | 提交时间：2018/07/30

Generalized estimating equation Genetic association study Model selection Multiple-comparison adjustment Tree-based model

Analysis of a diffractive microlens using the finite-difference time-domain method (EI CONFERENCE) 会议论文 OAI收割
作者: Liu Y.; Liu H.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

The finite-difference time-domain (FDTD) method is used as rigorous electromagnetic analysis model to calculate the field for a diffractive microlens (DML). The FDTD is used for the entire solution rather than using a near- to far-field propagation method to obtain the far-field energy distribution thus all the results are vector based. We derived a formula to calculate the magnitude of electric field which is time dependent and can be used to graphically show the light wave propagation and focusing process through a DML. Both the comparison and the integral methods are presented to obtain wave amplitude in full solution space and the distribution of light energy behind a DML is illustrated based on the wave amplitude. The formula of diffractive efficiency of the DML is derived from a time-averaged Ponyting vector which can indicate the propagation direction of light energy. Application of these formulations in the analysis of a DML example demonstrates the high accuracy and efficiency of our method. 2010 Society of Photo-Optical Instrumentation Engineers.

Content-based similarity for 3d model retrieval and classification 期刊论文 iSwitch采集
Progress in natural science, 2009, 卷号: 19, 期号: 4, 页码: 495-499
作者: Lue, Ke; He, Ning; Xue, Jian

收藏 | 浏览/下载：28/0 | 提交时间：2019/05/10

3d model Retrieval and classification Content-based 3d model retrieval Similarity comparison