中国科学院机构知识库网格系统: 检索

Step distribution of Yb filling fraction during microstructural evolution in skutterudites 期刊论文 OAI收割
JOURNAL OF ADVANCED CERAMICS, 2019, 卷号: 8, 期号: 1, 页码: 62
作者: Mei, Jing; Yao, Zheng; Zhu, Shuya; Hu, Dongli; Jiang, Ying

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收藏 | 浏览/下载：64/0 | 提交时间：2019/12/26

skutterudite ytterbium filling fraction microstructure step distribution

Statistical mechanics approach to a general hyperbranched polymer system consisting of AB(g) monomers and C-f cores 期刊论文 OAI收割
Polymer, 2014, 卷号: 55, 期号: 2, 页码: 686-697
Z. F. Zhao; Y. F. Li; N. Yao; H. J. Wang; X. W. Ba

收藏 | 浏览/下载：33/0 | 提交时间：2014/03/14

Free equilibrium energy Unequal reactivity Mean square radius of gyration condensing vinyl polymerization molecular-weight distribution mean-square radii conversion dependence multifunctional core branched polymers kinetic-analysis ab(2) monomer step-growth ab(n) n=2

The load analysis of chisel-edge ruling tool for diffraction gratings (EI CONFERENCE) 会议论文 OAI收割
2012 International Applied Mechanics, Mechatronics Automation Symposium, IAMMAS 2012, September 7, 2012 - September 9, 2012, Shenyang, Liaoning, China
作者: zhang f.; zhang f.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

The process of wear design on chisel-edge ruling tool of diffraction gratings is very complex because of following two reasons that one is the load distribution on minute edge area when grating ruling and the other is the anisotropic character of natural diamond. The former is the first step when wear design on chisel-edge ruling tool of diffraction grating In order to predicate the load distribution on minute edge area of tool this paper simulated the load distribution on minute edge area of tool by software when ruling on Aluminum-1100 with tabular data format flow stress and Aluminum-1100 with Power law flow stress respectively and through comparative analysis determined the approximate load distribution on minute edge area of chisel-edge ruling tool that the high load mainly focused on the edge area close to the tip of ruling tool and amount to 200MPa while about to 100MPa on the face of tool. (2012) Trans Tech Publications Switzerland.

Simulation of a collimated Gaussian-beam propagating through an atmospheric turbulence (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
作者: Zhang L.; Zhang L.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

A Split-step method based on scalar Fresnel diffraction theory is used to emulate a collimated Gaussian-beam propagating through the Kolmogorov turbulent atmosphere in this paper. We acquire the distribution of irradiance and phase on the receiver aperture through choosing accurate simulation parameters. At last the accuracy of simulation is verified through comparing the coherence factor of simulated beam field with that of theoretical field. 2011 IEEE.

The Development and Application of One Step Moment Distribution Method 期刊论文 OAI收割
ADVANCED SCIENCE LETTERS, 2011, 卷号: 4, 页码: 1875-1879
作者: Chen, Weizhong; Yao, Yunlong; He, Jianping

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收藏 | 浏览/下载：22/0 | 提交时间：2018/06/05

Elastic Support Elastic Stiffness Factor One Step Moment Distribution Method

Design and Prototyping of a Step-Like Field Magnet 期刊论文 OAI收割
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2010, 卷号: 20, 期号: 3, 页码: 1041-1044
作者: Tang JY(唐靖宇); Tang, JY; Feng, GY; Liu, GW

收藏 | 浏览/下载：12/0 | 提交时间：2016/06/29

Prototype step-like field magnet uniform beam distribution 3D magnetic field modeling

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：32/0 | 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.

Effect of influent flow rate distribution on the performance of step-feed biological nitrogen removal process 期刊论文 OAI收割
CHEMICAL ENGINEERING JOURNAL, 2007, 卷号: 131, 期号: 1, 页码: 319-328
Zhu, Guibing; Peng, Yongzhen; Wang, Shuying; Wu, Shuyun; Ma, Bin

收藏 | 浏览/下载：39/0 | 提交时间：2015/09/10

activated sludge biological nitrogen removal C/N ratio flow rate distribution removal efficiency step-feed process

Step-like field magnets to transform beam distribution at the CSNS target 期刊论文 OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 卷号: 582, 期号: 2, 页码: 326-335
作者: Tang JY(唐靖宇); Wei GH(魏国辉); Zhang C(张闯); Tang, JY; Wei, GH

收藏 | 浏览/下载：16/0 | 提交时间：2016/06/27

step-like field magnets beam distribution maximum current density Kicker misfiring beam spot stability

Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE) 会议论文 OAI收割
ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China
Liang F.; Hu J.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS several key techniques as follows are introduced. Firstly the unique system configuration four axes mutually intersecting at the center of the SS is adopted which ensures the shape of the focus be maintained circular during the writing period. Secondly an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly to guarantee the linear velocity to accord with the exposure character of the photoresist all the time an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m and the steep sides of the lines are parallel to each other.