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Unified picture for the pressure-controlled band gap in inorganic halide perovskites: Role of strain-phonon and phonon-phonon couplings
期刊论文
Physical Review B, 2022, 卷号: 105, 期号: 7
作者:
Zhang, Weiwei
;
Tang, Gang
;
Sahoo, M.P.K.
;
Liang, Yunting
;
Zhang, Yajun
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2022/04/21
Bromine compounds
Calculations
Conversion efficiency
Couplings
Lead compounds
Perovskite
Phonons
Band gap engineering
Compressive strain
Effective tool
First principle calculations
Halide perovskites
High-pressure experiment
Inorganic halides
Out of phase
Phonon-phonon couplings
Symmetry-mode analysis
Modulation of proton beams by relativistic electron beam-plasma instability
期刊论文
Physics of Plasmas, 2018, 卷号: 25
作者:
Wang, Xiao-Juan
;
Hu, Zhang-Hu
;
Zhao, Yong-Tao
;
Wang, You-Nian
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2019/11/19
Current filamentation
Dynamic effects
Dynamic evolution
Effective tool
Electromagnetic particle
Net-like structures
Relativistic electron beam
Transverse magnetic field
Influence of tool path strategies on fatigue performance of high-speed ball-end-milled AISI H13 steel
期刊论文
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2018, 卷号: 94, 期号: 1-4, 页码: 371-380
作者:
Huang, Weimin
;
Zhao, Jun
;
Xing, Ai
;
Wang, Guijie
;
Tao, Haiwang
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2019/12/11
High-speed milling
Tool path strategy
Microscopic stress
concentration
Effective residual stress
Fatigue life
Acoustics-based bearing fault detection using the improved kurtogram
会议论文
作者:
Xu, Xiaoqiang
;
Zhao, Ming
;
Lin, Jing
;
Lei, Yaguo
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  |  
浏览/下载:3/0
  |  
提交时间:2019/12/02
Amplitude demodulation
Bearing fault detection
Effective tool
Faults diagnosis
Machine breakdown
Periodic impulse
Rolling Element Bearing
Rolling elements
On hyperspectral remotely sensed image classification based on MNF and AdaBoosting (EI CONFERENCE)
会议论文
2012 3rd IEEE/IET International Conference on Audio, Language and Image Processing, ICALIP 2012, July 16, 2012 - July 18, 2012, Shanghai, China
Xu Y.
;
Yu P.
;
Guo B.
;
Gao X.
;
Guo Y.
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  |  
浏览/下载:16/0
  |  
提交时间:2013/03/25
As an effective statistical learning tool
AdaBoosting has been widely used in the field of pattern recognition. In this paper
a new method is proposed to improve the classification performance of hyperspectral images by combining the minimum noise fraction (MNF) and AdaBoosting. Because the hyperspectral imagery has many bands which have strong correlation and high redundancy
the hyperspectral data are pre-processed by the minimum noise fraction to reduce the data's dimensionality
whilst to remove noise bands simultaneously. Then
we use an AdaBoost algorithm to conduct the classification of hyperspectral remotely sensed image. Experimental results show that the classification accuracy is improved and the time of calculation is reduced as well. 2012 IEEE.
Information extraction from laser speckle patterns using wavelet entropy techniques (EI CONFERENCE)
会议论文
MIPPR 2011: Multispectral Image Acquisition, Processing, and Analysis, November 4, 2011 - November 6, 2011, Guilin, China
Wang X.-J.
;
Li X.-Z.
;
Su S.-C.
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  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
A novel speckle patterns processing method is presented using multi-scale wavelet techniques. Laser speckle patterns generated from the sample contained abundant information. In this paper
we propose a method using wavelet entropy techniques to analyze the speckle patterns and exact the information on the sample surface. In our case
we used this approach to test the solar silicon cell surface profiles based on the sym8 orthogonal wavelet family. According different wavelet entropy values
the micro-structure of different solar silicon cell surfaces were comparative analyzed. Furthermore
we studied the AFM and reflective spectra of the wafer. Results show that the wavelet entropy speckle processing method is effective and accurate. And the experiment proved that this method is a useful tool to investigate the surface profile quality. 2011 SPIE.
The research of rigid lapping technique on diamond grating ruling tool (EI CONFERENCE)
会议论文
2010 International Conference on Materials Science and Engineering Science, ICMSES 2010, December 11, 2010 - December 12, 2010, Shenzhen, China
Jirigalantu A.
;
Bayanheshig
;
Dong Q. X.
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  |  
浏览/下载:19/0
  |  
提交时间:2013/03/25
One of the effective method of improving diamond tool life on rulling large diffraction gratings is developing precise double-cone edged on line edge transfering tool. But traditional died weight or manual lapping technique couldn't meet the precision requirement of on line edge transfering tool. So preliminary studied rigid lapping of diamond grating ruling tool. Choosing traditional BC6063 shaping machine and made a series of alteration on it
achieved the automation of lapping process of diamond grating ruling tool. Through lapping grating ruling tool and AFM measurement find that the surface roughness of tool is 1.51nm
the radius of tool edge is 160nm
edge quality is good enough
this verified the feasibility of rigid lapping of diamond grating ruling tool and lay the foundation for developing precision lapping machine. (2011) Trans Tech Publications
Switzerland.
Influences and references of the Program Assessment Rating Tool in the U.S. on Chinese local government performance management
会议论文
4th International Conference on Business Intelligence and Financial Engineering, BIFE 2011, Wuhan, Hubei, China, October 17, 2011 - October 18, 2011
作者:
He, Wensheng
;
Liao, Lingling
;
Wang, Yan
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  |  
浏览/下载:0/0
  |  
提交时间:2017/01/18
Rating
Management
Development trends
Effective tool
Evaluating models
Local government
Program assessment
Program evaluation
Project performance
Public project
Universal GALS platform and evaluation methodology for networks-on-chip
期刊论文
2010, 2010
Lin Shijun
;
Jin Depeng
;
Zeng Lieguang
收藏
  |  
浏览/下载:6/0
SSA based decomposition of tool position trajectory for diamond turning of freeform optical surfaces (EI CONFERENCE)
会议论文
2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009, December 26, 2009 - December 28, 2009, Zhuhai, China
Zhou X.
;
Duan N.
;
Xu P.
;
Lin C.
;
Liu Q.
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2013/03/25
The radial spiral feed of the tool and the tool nose radius compensation are taken into consideration for the tool position trajectory (TPT) generation in diamond turning of freeform optical surfaces. Using the coarse sampling and the fine interpolation
a novel approach based on singular spectrum analysis (SSA) is presented to decompose the generated TPT into a slowly varying trend and a quickly varying quasi-periodic oscillation. The numerical experiments of the TPT decomposition of toroidal surfaces have been carried out. The results verify that the proposed approach is very effective for the TPT decomposition. (2010) Trans Tech Publications.
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