中国科学院机构知识库网格系统: 检索

Multi-dimensional signals coupling of simultaneous acquisition stripping current with laser-induced breakdown spectroscopy for accurate analysis of Cd(II) in coexisting Cu(II) 期刊论文 OAI收割
ANALYTICA CHIMICA ACTA, 2024, 卷号: 1325
作者: Yang, Yuan-Fan; Song, Zong-Yin; Liu, Zi-Hao; Gao, Zhi-Wei; Cai, Xin

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收藏 | 浏览/下载：10/0 | 提交时间：2024/11/20

Multi-dimensional signals Accurate analysis Interference Dynamically track

Evolutionary history of two evergreen Rhododendron species as revealed by chromosome-level genome assembly 期刊论文 OAI收割
FRONTIERS IN PLANT SCIENCE, 2023, 卷号: 14, 页码: 1123707
作者: Wu,Xiaopei; Zhang,Lu; Wang,Xiuyun; Zhang,Rengang; Jin,Guihua

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收藏 | 浏览/下载：14/0 | 提交时间：2024/05/09

Rhododendron delavayi Rhododendron irroratum genome evolution gene duplication anthocyanin biosynthesis NBS-encoding genes MULTIPLE SEQUENCE ALIGNMENT RICH REPEAT GENES PHYLOGENETIC ANALYSIS ARABIDOPSIS-THALIANA WHOLE-GENOME TOOL PIGMENTATION DUPLICATION RESISTANCE ACCURATE

Pangenome analysis provides insight into the evolution of the orange subfamily and a key gene for citric acid accumulation in citrus fruits 期刊论文 OAI收割
NATURE GENETICS, 2023
作者: Huang,Yue; He,Jiaxian; Xu,Yuantao; Zheng,Weikang; Wang,Shaohua

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收藏 | 浏览/下载：11/0 | 提交时间：2024/07/22

PHYLOGENETIC ANALYSIS VACUOLAR PH GENOME RUTACEAE ACCURATE ORIGIN TOOL CLASSIFICATION PROGRAM RETROTRANSPOSONS

Accurate Quantitative Analysis of Valuable Components in Zinc Leaching Residue Based on XRF and RBF Neural Network 期刊论文 OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 卷号: 42, 期号: 2, 页码: 490-497
作者:

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收藏 | 浏览/下载：40/0 | 提交时间：2022/06/15

XRF Accurate quantitative analysis RBF neural network model Zinc smelting leaching slag

Genomic basis of high-altitude adaptation in Tibetan Prunus fruit trees 期刊论文 OAI收割
CURRENT BIOLOGY, 2021, 卷号: 31, 期号: 17, 页码: 3848+
作者: Wang,Xia; Liu,Shengjun; Zuo,Hao; Zheng,Weikang

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收藏 | 浏览/下载：34/0 | 提交时间：2022/04/02

R-PACKAGE PHYLOGENETIC ANALYSIS ANALYSIS TOOLKIT ANALYSIS REVEALS WEB SERVER SELECTION ELEMENT IDENTIFICATION ALIGNMENT ACCURATE

The research of digltal CR medicine image adapitive enhancement method (EI CONFERENCE) 会议论文 OAI收割
4th International Conference on Mechanical and Electrical Technology, ICMET 2012, July 24, 2012 - July 26, 2012, Kuala Lumpur, Malaysia
Ming-Hui Z.; Yao-Yu Z.

收藏 | 浏览/下载：66/0 | 提交时间：2013/03/25

Digital CR medicine radiation image is in doctor's favor and has became medicine imaging technology new hot spot because of its high gray contrast powerful computer disposal function little radiation dosage non-film diagnosis different area consultation. But degradation of digital X-ray medical image such as low contrast and blurring during radiographic imaging caused by complexity of body tissue and effects of X-ray scattering and electrical noise etc. can worsen the results of analysis and diagnosis. So it is usually needed that CR medicine image is enhanced to improve its vision quality and easy to doctor's more accurate diagnosis. The general enhancement algorithms over enhancing the contrast and lose image details aiming at the defects an enhancement algorithm for CR image is proposed based on the ratio of deviation to mean of domain. The arithmetic enhance CR image edge details by adjusting factor K based on the ratio of deviation to mean of domain of CR image. Experiment results demonstrate that the algorithm enhances CR image detail and CR image enhanced has good visual effect the adaptive enhancement method is fit for CR medicine image. (2012) Trans Tech Publications Switzerland.

The research of the accurate measure of static transfer function for the TDI CCD camera (EI CONFERENCE) 会议论文 OAI收割
3rd International Photonics and OptoElectronics Meetings, POEM 2010, November 2, 2010 - November 5, 2010, Wuhan, China
Guo-Ning L.; Long-Xu J.; Jian-Yue R.; Wen-Hua W.; Shuang-Li H.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In the test course of static transfer function of TDI CCD camera because of the influence that gets environmental and artificial etc. factor the value of static transfer function measured at any time is between unceasing fluctuation so make accuracy reduce. To solve this problem a kind of accurate measurement technique of static transfer function is put forward. First before carrying out the measure of static quiet of transfer function the best test point of transfer function of the TDI CCD camera must be determined it is parallel to guarantee the rectangle target surface of parallel optical pipe and camera focal plane maintenance parallel and again guarantee target strip in rectangle target and TDI CCD in camera focal plane maintenance vertical. TDI CCD catches rectangle target image per 1000 lines of target mark image as a measures sample of static transfer function exclude because of atmosphere tremble twisted vague rectangle target mark image retain 500 distinct and steady target mark image as measure sample set. Then calculate the static transfer function of each measure sample respectively take the average of all static quiet transfer function in measure sample set as the static transfer function of camera. Finally the measure of the static transfer function for TDI CCD camera makes error analysis. Experimental results indicate that the value of the static transfer function of TDI CCD camera measured with this kind of method is 0.2923 with before measurement technique comparison the value of static transfer function has raised 0.02 makes the accuracy of the measure of static transfer function have gotten raising.

Nonlinear analysis method for predicting optical surface deformations resulted from assembly process (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
Dong W.; Yong Y.; Guang J.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

There are three main nonlinear elements in the large mirror assemblies which are screw pretension adhesive stress and state changes in the assembly process. The optical shape will be influenced seriously by these factors. But the impacts will not be shown in linear analysis results because as the simplification these factors have been ignored. The nonlinear analysis method for predicting optical surface deformations resulted from assembly process is discussed in detail. Take a typical mirror support structure for example the nonlinear analysis model was established. Comparing the calculation results with the optical shape test it is illustrated that nonlinear analysis is more accurate and closer to the test result. And according to the simulation result the bowl-shaped depression which was discovered in the test can also be explained reasonably. 2010 Copyright SPIE - The International Society for Optical Engineering.

Research on automatic multispectral images synthesis of space camera (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者: Liu J.-G.; Wu X.-X.; Kong D.-Z.; Zhou H.-D.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

Multilinear CCD Sensor was often used on space cameras to obtain multispectral images with each line representing different band channels. However images of different band channels obtained at the same time didn't coincide as there were spaces between lines. Pixel numbers to be adjusted between images of different channels varied when the space camera worked by swaying forward and backward or adjusted row transfer period to compensate image movement. An automatic multispectral images synthesis algorithm of space camera was put forward on the basis of analysis of such phenomenon. In this algorithm a new evaluation function was used to determine pixel numbers to be adjusted and the image regions of each band channel to be clipped. In this way images of different band channels could be synthesized automatically to obtain an accurate colorful image. This algorithm can be used to dispose a large mount of images from space camera directly without any manual disposal so that efficiency could be improved remarkably. In validation experiments the automatic multispectral images synthesis algorithm was applied in synthesis of images obtained from outside scene experiment of a multispectral space camera. Result of validation experiments proved that the automatic multispectral images synthesis algorithm can realize accurate multispectral images synthesis of space camera and the efficiency can be improved markedly. 2010 SPIE.

Equivalent lenses of supersonic seeker's outflow refractive index field obtained by simulation and experiment (EI CONFERENCE) 会议论文 OAI收割
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, November 16, 2008 - November 19, 2008, Beijing, China
Qun W.; Hongguang J.; Ming X.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In order to decrease the aerodynamic drag of supersonic image guide missile and design a non-spherical dome the outflow field of the missile's dome is simulated using FLUENT. Based on the simulated results the accurate density field of the outflow field at all kinds of flight conditions is obtained and then the refractive index field of the outflow field is gotten according to the Gladstone-Dale law. The results show that the shock wave induces the heterogeneity of the refractive index field and the turbulent causes distortion. The outflow field is divided into several zones which are taken as equivalent lenses for aberration analysis. 2009 SPIE.