中国科学院机构知识库网格系统: 检索

Accelerated Design of High gamma ' Solvus Temperature and Yield Strength Cobalt-Based Superalloy Based on Machine Learning and Phase Diagram 期刊论文 OAI收割
FRONTIERS IN MATERIALS, 2022, 卷号: 9, 页码: 9
作者: Wang, Cuiping; Chen, Xin; Chen, Yuechao; Yu, Jinxin; Cai, Wensu

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收藏 | 浏览/下载：39/0 | 提交时间：2022/07/14

machine learning new cobalt-based superalloys high strength high gamma ' solvus temperature high gamma ' phase stability

EAST新快控电源保护系统的设计 期刊论文 OAI收割
强激光与粒子束, 2020, 卷号: 32
作者: 武旭; 王林森; 吴义兵; 盛志才; 陈涛

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收藏 | 浏览/下载：20/0 | 提交时间：2020/11/23

EAST's new quick control power supply carrier phase shift power failure power protection system protection circuit EAST新快控电源载波移相电源故障电源保护系统保护电路

Constant cyclotron line energy in Hercules X-1 - Joint Insight-HXMT and NuSTAR observations 期刊论文 OAI收割
Journal of High Energy Astrophysics, 2019, 卷号: 23, 页码: 29-32
作者: HXMT

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收藏 | 浏览/下载：50/0 | 提交时间：2022/02/08

Stars: neutron star Pulsars: binary(Her X-1) X-rays: stars Astrophysics - High Energy Astrophysical Phenomena Abstract: The long-term evolution of the centroid energy of the CRSF in Her X-1 is still a mystery. We report a new measurement from a campaign between Insight-HXMT and NuSTAR performed in February 2018. Generally, the two satellites show well consistent results of timing and spectral properties. The joint spectral analysis confirms that the previously observed long decay phase has ended, and that the line energy instead keeps constant around 37.5 keV after flux correction.

Modified analytic expression for the single-scattering phase function 期刊论文 OAI收割
ACTA PHYSICA SINICA, 2017, 卷号: 66, 期号: 18, 页码: 1-13
作者: Cheng Chen; Shi Ze-Lin; Cui Sheng-Cheng; Xu Qing-Shan

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收藏 | 浏览/下载：24/0 | 提交时间：2018/08/17

Scattering Phase Function Henyey-greenstein Phase Function New Henyey-greenstein Phase Function

Optical signatures of low spin Fe3+ in NAL at high pressure 期刊论文 OAI收割
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2017, 卷号: 122, 期号: 5, 页码: 3565-3573
作者: Lobanov, Sergey S.; Hsu, Han; Lin, Jung-Fu; Yoshino, Takashi; Goncharov, Alexander F.

收藏 | 浏览/下载：23/0 | 提交时间：2018/06/04

Optical Absorption Crystal Field Splitting Spin Transition Lower Mantle Diamond Anvil Cell New Aluminous Phase

Three-dimensional three-connected tetragonal BN: Ab initio calculations 期刊论文 OAI收割
PHYSICS LETTERS A, 2014, 卷号: 378, 期号: 30-31, 页码: 2303
Niu, CY; Wang, JT

收藏 | 浏览/下载：16/0 | 提交时间：2015/04/14

New BN phase Dynamically stable Mechanical and electronic Ab initio calculations

Design and image restoration research of a cubic-phase-plate system (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China
作者: Zhang J.; Zhang J.; Zhang J.; Shi G.; Zhang X.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

Wave-front coding technology is a novel jointly optical and digital imaging technology which can greatly extend the depth of focus of optical systems. The image restoration process is an important part of wave-front coding technology. Using wave-front coding makes the modulation transfer function(MTF) values of the optical systems change little over a range of several times the depth of focus which means the system MTF is quite insensitive to defocus and there is no zero in the passband. So we can design a single filter for the restoration of images in different defocus positions. However it's hard to avoid noise during image acquisition and transmission processes. These noises will be amplified in the image restoration especially in the high frequency part when the MTF drop is relatively low. The restoration process significantly reduces the system signal to noise ratio this way. Aimed at the problem of noise amplification a new algorithm was proposed which incorporated wavelet denoising into the iterative steps of Lucy-Richardson algorithm. Better restoration results were obtained through the new algorithm effectively solving the noise amplification problem of original LR algorithm. Two sets of identical triplet imaging systems were designed in one of which the cubic-phase-plate was added. Imaging experiments of the manufactured systems were carried and the images of a traditional system and a wave-front coded system before and after decoding were compared. The results show that the designed wave-front coded system can extend the depth of focus by 40 times compared with the traditional system while maintaining the light flux and the image plane resolution. 2010 Copyright SPIE - The International Society for Optical Engineering.

New phase measurement method for laser rangefinder (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者: Meng Z.; Meng Z.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

A new phase measurement method is designed and presented by using the technique of signal shifting phase and the technique of signal multiplication for laser rangefinder. The intensity of laser light is modulated by cosine circuit signal at the same time the cosine circuit signal is thansformed sine signal by the shifting phase technique. Two signals mentioned above are multiplied by received signal from the target respectively then being transmitted into signal processor after passing through low band filter respectively. The result of phase-shift between the received signal and sent signal is calculated by means of signal processor and time-counter with double frequency of modulation signal. The proposed system is composed of four units such as control and count unit emitting and receiving unit of laser light signal processing unit and result display unit. The two most advantages of proposed system over others are its ability of proper isolation which reduces crosstalk and its independency thermal drift. Theoretical calculations and experimental results have shown the accuracy better than 2 mm. 2010 Copyright SPIE - The International Society for Optical Engineering.

An intelligent method for early design and decision of space payload (EI CONFERENCE) 会议论文 OAI收割
2010 1st IEEE International Conference on Progress in Informatics and Computing, PIC 2010, December 10, 2010 - December 12, 2010, Shanghai, China
作者: Han C.-S.; Wen M.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

This paper is concerned with the design and decision method of space payload in the early design phase. The objective is to develop a generalized intelligent framework to assist designers in designing space payload. A multi-level method is introduced which is based on the combination of case-based reasoning (CBR) multicriteria rough sets theory (MRST) and kernel-based self-organizing maps (KSOM). The first is CBR module which aims to help designers to obtain some similar cases of the new situation. The second is MRST module which can extract the decision rules of configuration seletion. The third is KSOM module which can reduce the variable range and design space of the space payload. The results demonstrate the effectiveness of the proposed design method. 2010 IEEE.

An image matching algorithm based on sub-block coding (EI CONFERENCE) 会议论文 OAI收割
2nd International Workshop on Computer Science and Engineering, WCSE 2009, October 28, 2009 - October 30, 2009, Qingdao, China
作者: Li S.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

In order to improve the speed of matching algorithm and simplify the processing of existing sub-block coding matching a new template matching method combined local gray value encoding matching and phase correlation is proposed. Matching process is divided into rough matching and fine matching. Rough matching divides the image into certain size blocks called R-block sums the gray value of each R-block pixel encodes the R-block according to the gray value distribution of R-block with the adjacent R-block and matches by step between the template and each search sub-image. Then fine matching results are obtained using phase correlation according to initial match parameters. The time complexity of the proposed method is (M2) .The new algorithm is faster than traditional algorithm by two orders of magnitude and the speed has improved twice compared with existing sub-block coding method. Experiments demonstrate that the new algorithm is robust to the linear transformation of pixel grey value and image noise and it also has the stability of small-angle rotation. 2009 IEEE.