A5101882730- Adaptive optics and wavefront sensing
- Optical Systems and Laser Technology
- Advanced Proteomics Techniques and Applications
- Machine Learning in Bioinformatics
- Optical measurement and interference techniques
- Genomics and Phylogenetic Studies
- Optical Coherence Tomography Applications
- Mass Spectrometry Techniques and Applications
- Electrocatalysts for Energy Conversion
- Advanced optical system design
- Organoboron and organosilicon chemistry
- Pulsars and Gravitational Waves Research
- Hydrogen Storage and Materials
- Metabolomics and Mass Spectrometry Studies
- Catalysis and Hydrodesulfurization Studies
- Inertial Sensor and Navigation
- Piezoelectric Actuators and Control
- Optical Wireless Communication Technologies
- Protein Interaction Studies and Fluorescence Analysis
- Advanced Malware Detection Techniques
- Network Security and Intrusion Detection
- Astronomical Observations and Instrumentation
- Advanced Numerical Analysis Techniques
- Synthesis and characterization of novel inorganic/organometallic compounds
- Magnetic Properties and Applications
Chinese Academy of Sciences
2004-2024
Changchun Institute of Optics, Fine Mechanics and Physics
2018-2024
Institute of Computing Technology
2004-2007
University of Chinese Academy of Sciences
2006-2007
Institute of Software
2005
Los Alamos National Laboratory
1995
Abstract This paper describes the pFind 2.0 software package for peptide and protein identification via tandem mass spectrometry. Firstly, most important feature of is that it offers a modularized customized platform third parties to test compare their algorithms. The developers can create own modules following open application programming interface (API) standards then add into workflows in place default modules. In addition, accommodate different requirements, provides four automated...
The correlation among fragment ions in a tandem mass spectrum is crucial reducing stochastic mismatches for peptide identification by database searching. Until now, an efficient scoring algorithm that considers the correlative information tunable and comprehensive manner has been lacking.This paper provides promising approach to utilizing improving accuracy. kernel trick, rooted statistical learning theory, exploited address this issue with low computational effort. common method, spectral...
Piezoelectric ceramic actuators have the advantages of fast response speed and high positioning accuracy are widely used in micro-machinery, aerospace, precision machining machinery, other fields. However, hysteretic nonlinearity has a great influence on piezoelectric actuators, so it is necessary to establish model solve this problem. In paper, principles Preisach model, Prandtl Ishilinskii (PI) Maxwell Duhem Bouc–Wen Hammerstein their application development hysteresis modeling described...
In the cophasing of segmented optical mirrors, Shack-Hartmann wavefront sensor is not sensitive to submirror piston error and large range errors beyond detection phase diversity algorithm. It necessary introduce specific sensors (e.g., microlenses or prisms), but they greatly increase complexity manufacturing cost system. this Letter, we convolutional neural network (CNN) distinguish each submirror. To get rid dependence CNN dataset on imaging target, construct feature vector by in-focal...
The emergence of segmented mirrors is expected to solve the design, processing, manufacturing, testing, and launching space telescopes large apertures. However, with increase in number sub-mirrors, sensing correction co-phase errors will be very difficult. In this paper, an independent three-dimensional method for sub-mirror error proposed. based on a wide spectral modulation transfer function (MTF), mask, population optimization algorithm, online model-free correction. method, process each...
The phase diversity (PD) algorithm will eventually be converted into a large-scale nonlinear numerical optimization problem, so the selection of directly determine accuracy and speed settlement. In this paper, we introduce cuckoo search algorithm, which has advantages simple model, few parameters, easy implementation, to algorithm. By improving step size control factor in original can make it have faster for PD. simulation experiments, further proved gave explanation theory that case...
The wave-front phase expanded on the Zernike polynomials is estimated from a pair of images by use maximum-likelihood approach, in-focus image and defocus image, which contaminated noise, will greatly reduce solution accuracy diversity (PD) algorithm. In study, we introduce deep denoising convolutional neural networks (DnCNNs) into preprocessing PD to denoise containing gaussian white noise improve robustness noise. simulation results show that composite algorithm with DnCNNs better than...
Abstract Summary: A software package, IndexToolkit, aimed at overcoming the disadvantage of FASTA-format databases for frequent searching, is developed to utilize an indexing strategy substantially accelerate sequence queries. IndexToolkit includes user-friendly tools and Application Programming Interface (API) facilitate indexing, storage retrieval protein databases. As open source, it provides a sequence-retrieval developing framework, which easily extensible high-speed-request proteomic...
The segmented mirror co-phase error identification technique based on supervised learning methods has the advantages of simple application conditions, no dependence custom sensors, a fast calculation speed, and low computing power requirements compared with other methods. However, it is often difficult to obtain high accuracy in practical situations this method because difference between training model actual model. reinforcement algorithm does not need real system when operating system....
At this stage, in order to ensure the effective work of gravitational reference sensor, it’s necessary residual velocity test mass(mass = 1.9 kg) after being released by grabbing positioning and release mechanism is less than <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$5~\mu \text{m}$ </tex-math></inline-formula> /s, so that it can be normally captured electrode housing. Therefore, based on...
Angular constraints in a five-membered ring prevent the optimal overlap between positive charge on carbon and β-C–Si bond that is possible six-membered rings, ab initio methods have been used for first time to study this phenomenon secondary, common systems. Within most stable conformer of cyclopentyl cation (the twist form) introduction β-pseudo-axial C–Si (as SiH3) stabilizes system by 15.8 kcal mol–1, whereas β-pseudoequatorial it only 5.6 mol–1. The structure distorts three ways optimize...
The emergence of segmented mirrors is expected to solve the design, processing, manufacturing, testing and launching space telescopes large aperture. However, with increase number sub-mirrors, recognition correction co-phase errors in will be very difficult. In this paper, an independent three-dimensional method sub-mirror error based on wide spectral MTF ,mask, population optimization algorithm online model-free proposed. method, identification process each submirror other, so submirrors...