中国科学院机构知识库网格系统: 检索

Bi-layer coarse-grained DPM of gas-solid systems with mesoscale heterogeneity resolved 期刊论文 OAI收割
CHEMICAL ENGINEERING SCIENCE, 2022, 卷号: 263, 页码: 10
作者: Zhang, Yong; Xu, Ji; Chang, Qi; Ge, Wei

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收藏 | 浏览/下载：30/0 | 提交时间：2023/02/24

Coarse -grained DPM (CGDPM) EMMS-DPM Fluid resolution Mesoscale structures Multi -scale methods

A Coarse-to-Fine Registration Approach for Point Cloud Data with Bipartite Graph Structure 期刊论文 OAI收割
ELECTRONICS, 2022, 卷号: 11
作者: Yuan, Munan; Li, Xiru; Cheng, Longle; Li, Xiaofeng; Tan, Haibo

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收藏 | 浏览/下载：44/0 | 提交时间：2022/03/21

point cloud coarse-to-fine registration top-tail (TT) strategy bipartite graph matching 3D scale-invariant feature transform (3D SIFT) fast point feature histograms (FPFH) trimmed iterative closest point (TrICP)

Pilot-scale study on NO emissions from coarse coal combustion preheated by circulating fluidized bed 期刊论文 OAI收割
FUEL, 2020, 卷号: 280, 页码: 10
作者: Zhu SJ(朱书骏); Zhu JG(朱建国); Lyu QG; Liu JZ; Ouyang ZQ

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收藏 | 浏览/下载：31/0 | 提交时间：2020/10/23

Pilot-scale Coarse coal combustion NO emissions Preheating Circulating fluidized bed

Experimental and Eulerian-Lagrangian-Lagrangian study of binary gas-solid flow containing particles of significantly different sizes 期刊论文 OAI收割
RENEWABLE ENERGY, 2019, 卷号: 136, 页码: 193-201
作者: Zhang, Yong; Zhao, Yuemin; Gao, Zhonglin; Duan, Chenlong; Xu, Ji

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收藏 | 浏览/下载：93/0 | 提交时间：2019/06/14

Fluidization Coarse-grained model Bubble motions Multi-scale analysis Density segregation

Computer virtual experiment on fluidized beds using a coarse-grained discrete particle method-EMMS-DPM 期刊论文 OAI收割
CHEMICAL ENGINEERING SCIENCE, 2016, 卷号: 155, 期号: NOV, 页码: 314-337
作者: Lu, Liqiang; Xu, Ji; Ge, Wei; Gao, Guoxian; Jiang, Yong

收藏 | 浏览/下载：59/0 | 提交时间：2016/12/13

Fluidization Coarse-graining Discrete particle method (DPM) Energy-minimization multi-scale (EMMS) model Virtual process engineering (VPE) Real time simulation 3D full-loop simulation Residence time distribution (RTD)

Optimal Nodes Selectiveness from WSN to Fit Field Scale Albedo Observation and Validation in Long Time Series in the Foci Experiment Areas, Heihe 期刊论文 OAI收割
REMOTE SENSING, 2015, 卷号: 7, 期号: 11, 页码: 273-281
作者: Wu, Xiaodan; Xiao, Qing; Wen, Jianguang; Liu, Qiang; You, Dongqin

收藏 | 浏览/下载：22/0 | 提交时间：2016/04/20

coarse scale albedo heterogeneous long time series validation

EMMS-based discrete particle method (EMMS-DPM) for simulation of gas-solid flows 期刊论文 OAI收割
CHEMICAL ENGINEERING SCIENCE, 2014, 卷号: 120, 期号: DEC, 页码: 67-87
作者: Lu, Liqiang; Xu, Ji; Ge, Wei; Yue, Yunpeng; Liu, Xinhua

收藏 | 浏览/下载：43/0 | 提交时间：2015/04/01

Circulating fluidized bed (CFB) Coarse-graining (CG) Discrete particle method (DPM) Energy minimization multi-scale (EMMS) model Meso-scale Multi-scale

A line mapping based automatic registration algorithm of infrared and visible images 会议论文 OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者: Ai R(艾锐); Shi ZL(史泽林); Xu DJ(徐德江); Zhang CS(张程硕)

收藏 | 浏览/下载：40/0 | 提交时间：2013/12/26

There exist complex gray mapping relationships among infrared and visible images because of the different imaging mechanisms. The difficulty of infrared and visible image registration is to find a reasonable similarity definition. In this paper, we develop a novel image similarity called implicit linesegment similarity(ILS) and a registration algorithm of infrared and visible images based on ILS. Essentially, the algorithm achieves image registration by aligning the corresponding line segment features in two images. First, we extract line segment features and record their coordinate positions in one of the images, and map these line segments into the second image based on the geometric transformation model. Then we iteratively maximize the degree of similarity between the line segment features and correspondence regions in the second image to obtain the model parameters. The advantage of doing this is no need directly measuring the gray similarity between the two images. We adopt a multi-resolution analysis method to calculate the model parameters from coarse to fine on Gaussian scale space. The geometric transformation parameters are finally obtained by the improved Powell algorithm. Comparative experiments demonstrate that the proposed algorithm can effectively achieve the automatic registration for infrared and visible images, and under considerable accuracy it makes a more significant improvement on computational efficiency and anti-noise ability than previously proposed algorithms.

A novel miniature absolute metal rotary encoder based on Single-track Periodic Gray Code (EI CONFERENCE) 会议论文 OAI收割
2012 2nd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2012, December 8, 2012 - December 10, 2012, Harbin, Heilongjiang, China
作者: Sun Y.; Yang S.-W.; Sun Y.; Wan Q.-H.

收藏 | 浏览/下载：33/0 | 提交时间：2013/03/25

In order to improve the resolution and enhance the impact resistance and vibration resistance of encoders a novel absolute metal rotary encoder based on Single-track Periodic Gray Code is presented. The configuration and working principle of the encoder is introduced and then the metal code disc which can realize full scale absolute encoding on one single track and its corresponding metal slit disc are proposed. Finally the data acquisition and processing system based on FPGA of encoder is presented. The resolution of the encoder can reach 5.27through electronic subdivision and calibration between the precision code and the coarse code with its volume only 4840mm. The encoder has some advantages such as small volume low cost high resolution and strong impact resistance. 2012 IEEE.

Strain-induced refinement in a steel with spheroidal cementite subjected to surface mechanical attrition treatment 期刊论文 OAI收割
Acta Materialia, 2008, 卷号: 56, 期号: 1, 页码: 78-87
L. Zhou; G. Liu; X. L. Ma; K. Lu

收藏 | 浏览/下载：119/0 | 提交时间：2012/04/13

steel with spheroidal cementite nanocrystalline material grain refinement cementite dissolution dislocation gliding induced grain-refinement coarse 2nd-phase particles pearlitic steel plastic-deformation nanocrystalline ferrite nanostructure formation nanometer-scale dissolution microstructures decomposition