中国科学院机构知识库网格系统: 检索

Can the Artificial Release of Fluorinated Gases Offset Global Cooling Due to Supervolcanic Eruptions? 期刊论文 OAI收割
ATMOSPHERE, 2024, 卷号: 15, 期号: 11, 页码: 20
作者: Xu, Yangyang; Ribar, Nathanael P.; Sachnik, Jeffrey; Schade, Gunnar W.; Lockley, Andrew John

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收藏 | 浏览/下载：9/0 | 提交时间：2025/04/01

geoengineering counter-geoengineering simple climate model supervolcanic eruptions fluorinated gases

Determination of geomaterial mechanical parameters based on back analysis and reduced-order model 期刊论文 OAI收割
COMPUTERS AND GEOTECHNICS, 2021, 卷号: 132, 页码: 13
作者: Zhao, Hongbo; Chen, Bingrui; Li, Shaojun

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收藏 | 浏览/下载：34/0 | 提交时间：2021/05/25

Geomechanics Geomaterial Back analysis Reduced-order model Simple homology global optimization

Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain 期刊论文 OAI收割
JOURNAL OF FRESHWATER ECOLOGY, 2018, 卷号: 33, 期号: 1, 页码: 311-325
作者: Zhang, Guangshuai; Yu, Xiubo; Gao, Yang; Li, Ya; Zhang, Quanjun

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收藏 | 浏览/下载：61/0 | 提交时间：2019/05/23

Decay rate path model lignin degradation cellulose degradation Poyang Lake Wetland simple exponential model

Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain 期刊论文 OAI收割
JOURNAL OF FRESHWATER ECOLOGY, 2018, 卷号: 33, 期号: 1, 页码: 311-325
作者: Zhang, Guangshuai; Yu, Xiubo; Gao, Yang; Li, Ya; Zhang, Quanjun

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收藏 | 浏览/下载：14/0 | 提交时间：2019/05/23

Decay rate path model lignin degradation cellulose degradation Poyang Lake Wetland simple exponential model

Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain 期刊论文 OAI收割
JOURNAL OF FRESHWATER ECOLOGY, 2018, 卷号: 33, 期号: 1, 页码: 311-325
作者: Zhang, Guangshuai; Yu, Xiubo; Gao, Yang; Li, Ya; Zhang, Quanjun

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收藏 | 浏览/下载：17/0 | 提交时间：2019/05/23

Decay rate path model lignin degradation cellulose degradation Poyang Lake Wetland simple exponential model

A simple and fast moving object segmentation based on H.264 compressed domain information (EI CONFERENCE) 会议论文 OAI收割
4th International Conference on Computational and Information Sciences, ICCIS 2012, August 17, 2012 - August 19, 2012, Chongqing, China
作者: Chen X.; Chen X.; Chen X.; Sun L.

收藏 | 浏览/下载：15/0 | 提交时间：2013/03/25

The paper presents a simple and fast approach for moving object segmentation based on H.264 compressed domain information for the application of indoor video surveillance with static camera. Due to the characteristics of indoor video surveillance the proposed method of segmentation avoids complicated background model like Gaussian Mixture background model. On the contrary it chooses some simple information like the type of Macroblock etc.. Experimental results of several specific H.264 compressed video sequences demonstrate the good segmentation quality of the proposed approach. 2012 IEEE.

Two-Photon Exchange Corrections to Single Spin Asymmetry of Neutron and He-3 期刊论文 OAI收割
COMMUNICATIONS IN THEORETICAL PHYSICS, 2011, 卷号: 55, 页码: 489-494
作者: Chen Dian-Yong; Dong Yu-Bing

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收藏 | 浏览/下载：18/0 | 提交时间：2018/05/31

simple hadronic model two-photon exchange single spin asymmetry

Blueprints of the no-scale multiverse at the LHC 期刊论文 OAI收割
PHYSICAL REVIEW D, 2011, 卷号: 84, 期号: 5, 页码: 56016
作者: Li, TJ

收藏 | 浏览/下载：20/0 | 提交时间：2013/05/17

PROBE WMAP OBSERVATIONS X U(1)(X) MODELS SUPERSYMMETRY BREAKING SYMMETRY-BREAKING STANDARD MODEL INTERSECTING D6-BRANES COSMOLOGICAL CONSTANT INFLATIONARY UNIVERSE SIMPLE SUPERGRAVITY STRING THEORY

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：85/0 | 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.

Two-Photon Exchange Corrections to Single Spin Asymmetry of Neutron and He-3 期刊论文 OAI收割
COMMUNICATIONS IN THEORETICAL PHYSICS, 2011, 卷号: 55, 期号: 3, 页码: 489-494
作者: Chen, DY; 董宇兵;Dong, YB

收藏 | 浏览/下载：14/0 | 提交时间：2016/04/08

simple hadronic model two-photon exchange single spin asymmetry