中国科学院机构知识库网格系统: 检索

Prediction of chemical short-range order in high-/medium-entropy alloys 期刊论文 OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2024, 卷号: 169, 页码: 115-123
作者: Cao, Pei-Yu; Wang, Jing; Jiang, Ping; Wang, Yun-Jiang; Yuan, Fu-Ping

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收藏 | 浏览/下载：76/0 | 提交时间：2023/10/10

Short-range order High-entropy alloy Microstructure First-principles calculation Gibbs free energy Local electronic density of states

Stability of High-Order Finite-Difference Schemes for Poroelastic Wave Simulation 期刊论文 OAI收割
EAST ASIAN JOURNAL ON APPLIED MATHEMATICS, 2022, 卷号: 12, 期号: 4, 页码: 891-911
作者: Zhang, Wensheng; Joardar, Atish Kumar

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收藏 | 浏览/下载：20/0 | 提交时间：2023/02/07

Stability poroelastic wave equation energy method high-order scheme wave simulation

The energy-preserving time high-order AVF compact finite difference scheme for nonlinear wave equations in two dimensions 期刊论文 OAI收割
APPLIED NUMERICAL MATHEMATICS, 2021, 卷号: 170, 页码: 298-320
作者: Hou, Baohui; Liang, Dong

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收藏 | 浏览/下载：21/0 | 提交时间：2022/04/02

AVF method CFD operator Time high-order Energy conservation Convergence Nonlinear wave equations

Sluggish hydrogen diffusion and hydrogen decreasing stacking fault energy in a high-entropy alloy 期刊论文 OAI收割
MATERIALS TODAY COMMUNICATIONS, 2021, 卷号: 26, 页码: 7
作者: Xie ZC(谢周璨); Wang YJ(王云江); Lu CS(卢春生); Dai LH(戴兰宏)

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收藏 | 浏览/下载：53/0 | 提交时间：2021/05/06

High entropy alloys Hydrogen embrittlement Diffusion barrier Chemical order Stacking fault energy

Comparison of simulated backgrounds with in-orbit observations for HE, ME, and LE onboard Insight-HXMT 期刊论文 OAI收割
Astrophysics and Space Science, 2020, 卷号: 365, 页码: 158
作者: HXMT

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收藏 | 浏览/下载：51/0 | 提交时间：2022/02/08

Insight-HXMT Geant4 simulation Background observation Astrophysics - Instrumentation and Methods for Astrophysics Abstract: Insight-HXMT, the first X-ray astronomical satellite in China, aims to reveal new sources in the Galaxy and to study fundamental physics of X-ray binaries from 1 to 250 keV. It has three collimated telescopes, the High Energy X-ray telescope (HE), the Medium Energy X-ray telescope (ME), and the Low Energy X-ray telescope (LE). Before the launch, in-orbit backgrounds of these three telescopes had been estimated through Geant4 simulation, in order to investigate the instrument performance and the achievement of scientific goals. In this work, these simulated backgrounds are compared with in-orbit observations. Good agreements are shown for all three telescopes. For HE, (1) the deviation of the simulated background rate after two years of operation in space is 5 % from the observation (2) the total background spectrum and the relative abundance of the 67 keV line show long-term increases both in simulations and observations. For ME, (1) the deviation of simulated background rate is within 15 % from the observation, and (2) there are no obvious long-term increase features in the background spectra of simulations and observations. For LE, the background level given by simulations is also consistent with observations. The consistencies of these comparisons validate that the Insight-HXMT mass model, i.e., space environment components and models adopted, physics processes selected, and detector constructions built, is reasonable. However, the line features at 7.5 and 8.0 keV, which are obvious in the observed spectra of LE, are not evident in simulations. This might result from uncertainties in the LE constructions.

Angle-resolved photoelectron energy spectrum from the high-order above-threshold ionization process in IR plus XUV two-color laser fields 期刊论文 OAI收割
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2018, 卷号: 51, 期号: 24, 页码: 11
作者: Wang, Bingbing; Liu, Xiaojun; Chen, Jing; Yang, Yujun; Li, Fei

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收藏 | 浏览/下载：251/0 | 提交时间：2019/04/30

high-order above-threshold ionization IR-FXUV two-color laser fields angle-resolved photoelectron energy spectrum the frequency-domain theory

High-Order Energies for Stereo Segmentation 期刊论文 OAI收割
ieee transactions on cybernetics, 2016, 卷号: 46, 期号: 7, 页码: 1616-1627
作者: Peng, Jianteng; Shen, Jianbing; Li, Xuelong

收藏 | 浏览/下载：31/0 | 提交时间：2016/09/23

Disparity high-order energy optimization saliency segmentation stereo images

PEPX-type lattice design and optimization for the High Energy Photon Source 期刊论文 OAI收割
CHINESE PHYSICS C, 2015, 卷号: 39, 期号: 6, 页码: 67004
作者: Jiao Y(焦毅); Xu G(徐刚); Jiao, Y; Xu, G

收藏 | 浏览/下载：176/0 | 提交时间：2016/04/18

diffraction-limit storage ring third-order achromat High Energy Photon Source

Real-time matching algorithm of navigation image based on corner detection (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者: Zhang T.

收藏 | 浏览/下载：46/0 | 提交时间：2013/03/25

In order to meet requirement of real-time and high accuracy in image matching aided navigation SSDA algorithm is used to match remote sensing image and template image coarsely a fast and effective algorithm of remote sensing image matching based on corner detection is put forward. With the combination of rough and fine match when the matching result is bigger than one to count absolute value sum of energy difference of characteristic point energy to realize fine match of remote sensing image and template image to locate the position of template image in remote sensing image accurately. Simulation experiment proves that the matching of a remote sensing image resolution of 1018*1530 and a template image resolution of 150*90 can be fulfilled within 2.392 second wavelet transform is used to acquire low frequency component to realize image compression to decrease calculation work and increase matching speed. Harris corner detection algorithm is used to detect corner of remote sensing image and template image and energy of every corner is calculated the algorithm is robust and effective real time image navigation can be achieved. 2009 SPIE.

Disc varifocal mechanism to improve efficiency of scene matching navigation system (EI CONFERENCE) 会议论文 OAI收割
2009 2nd International Conference on Future Information Technology and Management Engineering, FITME 2009, December 13, 2009 - December 14, 2009, Sanya, China
作者: Zhang C.-L.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

In order to meet special requests of optical imaging sensor in scene matching navigation system a disc varifocal mechanism is proposed for the flight vehicles of long flying time and range. Within small space occupied it can obtain real images with various resolutions. Moreover using plate traveling-wave Ultrasonic Motor as its driven motor can reduce energy loss improve control precision and ensure image obtaining being real-time and stable. Disc varifocal mechanism driven by plate traveling-wave Ultrasonic Motor is high-response and variation in load doesn't affect its performance parameter. Therefore applying disc varifocal mechanism in scene matching navigation system combing software and hardware can obviously improve the accuracy real-time and robust of scene matching navigation system. The experiment showed that when the weight of mechanism was 1.5kg the shortest starting was 0.6ms and the shortest shutoff was 0.5ms. 2009 IEEE.