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Electronic properties of one-dimensional systems with long-range correlated binary potentials

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Chinese Physics B 2011年第8期20卷 335-339页

作者： Gong Long-Yan tong Pei-qing Zhou Zi-Cong College of Science Nanjing University of Posts and Telecommunications Nanjing 210003 China Department of Physics Nanjing Normal University Nanjing 210097 China Department of Physics Tamkang University 151 Ying-Chuan Tamsui 25137 Taipei Taiwan China

We study numerically the electronic properties of one-dimensional systems with long-range correlated binary potentials. The potentials are mapped from binary sequences with a power-law power spectrum over the entire frequency range, which is characterized by correlation exponent β. We find the localization length ζ increases withβ. At system sizes N →∞, there are no extended states. However, there exists a transition at a threshold ζ. Whenβ 〉 βc, we obtain ζ 〉 0. On the other hand, at finite system sizes, ζ≥ N may happen at certain β, which makes the system ＂metallic＂, and the upper-bound system size N＊（β） is given.

关键词： electronic properties long-range correlation binary potentials localization

Regularity Criteria for the Three-dimensional MHD Equations

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Acta Mathematicae Applicatae Sinica 2011年第4期27卷 581-594页

作者： Lan LUO Yong-ye ZHAO qing YANG Institute for Mathematics and Information Sciences Guangzhou University Cuangzhou 510006 China School of Mathematics and Computional Science Xiangtan University Xiangtan 411105 China

In this paper, we consider regularity criteria for solutions to the 3D MHD equations with incompressible conditions. By using some classical inequalities, we obtain the regularity of strong solutions to the three-dimensional MHD equations under certain sufficient conditions in terms of one component of the velocity field and the magnetic field respectively.

关键词： MHD equations strong solution regularity

Understanding the proteome encoded by “non-coding RNAs”:new insights into human genome

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Science China(Life Sciences) 2020年第7期63卷 986-995页

作者： Shaohua Lu tong Wang Gong Zhang qing-Yu He MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes Institute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhou 510632China

A great number of non-coding RNAs(ncRNAs) account for the majority of the genome. The translation of these ncRNAs has been noted but seriously underestimated due to both technological and theoretical limitations. Based on the development of ribosome profiling(Ribo-seq), full length translating RNA analysis(RNC-seq) and mass spectrometry technology, more and more ncRNAs are being found to be translated in different organism, and some of them can produce functional peptides. While recently, not only individual new functional proteins, but also a new proteome have been experimentally discovered to be encoded by endogenous lncRNAs and circRNAs. These new proteins are of biological significance, suggesting the connection of the translation of ncRNAs to human physiology and diseases. Therefore, an in-depth and systematic understanding of the coding capabilities of ncRNAs is necessary for basic biology and medicine. In this review, we summarize the advances in the field of discovering this new proteome, i.e. "ncRNA-coded" proteins.

关键词： non-coding RNAs Ribo-seq RNC-seq proteome young gene

Capillary electrophoresis with laser-induced fluorescence detection of main polyamines and precursor amino acids in saliva

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Chinese Chemical Letters 2014年第4期25卷 640-644页

作者： Zhuo Li Yang Zhang Fang-Hong tong Ting-Ting Jiang Hui-Ping Zheng Jian-Nong ye qing-Cui Chu Department of Chemistry East China Normal University

A hollow-fiber liquid-phase microextraction （HF-LPME） method has been developed for the purification and preconcentration of biogenic polyamines and their precursor amino acids in human saliva. Putrescine （Put）, cadaverine （Cad）, spermidine （Spe）, ornithine （Orn）, lysine （Lys）, and arginine （Arg） were determined by the CE-LIF detection after microextraction. Several factors that affect extraction efficiency, separation, and detection were investigated. Under the optimum conditions, six analytes could achieve baseline separation within 30 min, exhibiting a linear calibration at three orders of magnitude （r2 〉 0.998）; the obtained enrichment factors of HF-LPME were between 19 （for Orn） and 2] 8 （for Cad）, and the LODs were in the range of 0.0072-0.26 nmol/L. The proposed HF-LPME/CE-LIF method has been successfully applied for the sensitive analyses of the real-world saliva samples collected from healthy volunteers and different patients with oral diseases, providing a potential method for primary non-invasive diagnosis of some oral diseases.

关键词： Polyamine Saliva Capillary electrophoresis Hollow-fiber liquid-phase microextraction

Wave Dissipation Characteristics of A Mountain-Type Breakwater

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China Ocean Engineering 2020年第6期34卷 863-870页

作者： GONG ye-jun ZHAN Jie-min HU Wen-qing FAN qing CAI Wen-hao MOE-LCSM School of Mathematics and StatisticsHunan Normal UniversityChangsha 410081China Department of Applied Mechanics and Engineering Sun Yat-sen UniversityGuangzhou 510275China

One mountain-type breakwater consisting of two inclined plates and one vertical plate is proposed based on several types of traditional free surface breakwaters, including the horizontal plate, curtain wall, and trapezoidal barriers. The interaction between the regular waves and the fixed free surface mountain-type breakwater is measured in one wave flume(15.0 m×0.6 m×0.7 m). The wave propagation, reflection, and transmission process are simulated using the VOF method and the hybrid SAS/laminar method. The simulated wave profiles are consistent with the experimental observations. For waves with a length smaller than four times width of the mountain-type breakwater, the reflected wave amplitudes are slightly larger than those of the vertical-plate breakwater, while the wave transmission coefficients are all smaller than 0.5, and the wave loss coefficients are larger than 0.7. The wave energy is dissipated by wave breaking on the windward inclined plate, and turbulent flow around the vertical plate and the leeward inclined plate.

关键词： wave-structure interaction mountain-type breakwater free surface breakwater

Multi-parametric Sensitivity Analysis of Improved Transformer Thermal Models Considering Nonlinear Effect of Oil Time Constant

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CSEE Journal of Power and Energy Systems 2023年第5期9卷 1950-1958页

作者： tong Qian Qianlong Wei Zeyuan Yu Wenhu Tang qing-Hua Wu School of Electric Power Engineering South China University of TechnologyGuangzhou 510641China

This paper aims to develop an approach to investigating the effect of a particular parameter on the output accuracy of transformer thermal models,*** analysis,which can not only reveal the most sensitive parameter of a thermal model but also improve model output *** the first time,the nonlinear time constant(NTC)of transformer oil is proposed to reshape three practical top-oil temperature models based on an expression of nonlinear thermal conductance:the modified IEEE clause 7 model,Swift’s model,and Susa’s ***,the multi-parametric sensitivity analysis(MPSA)is undertaken to reveal the effect of each parameter on the model output *** onsite data validation,the results show that the accuracy performance of the proposed NTC thermal models are improved significantly by considering the nonlinear effect of oil time ***,the derived sensitivity performances can clearly reveal the most dominant parameter of the model,so as to simplify the model parameter identification process by reducing the number of insensitive ***,the heat-run test data is used as a reference to validate parameters optimized through a genetic algorithm(GA),which demonstrates that the proposed NTC IEEE model has not only one sensitive parameter but also superior accuracy performance.

关键词： Constant genetic algorithm multi-parametric sensitivity analysis nonlinear oil time transformer thermal model

A multi-source data fusion modeling method for debris flow prevention engineering

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Journal of Mountain Science 2021年第4期18卷 1049-1061页

作者： XU qing-yang ye Jian LYU Yi-jie Faculty of Geoscience and Environmental Engineering Southwest Jiao tong UniversityChengdu 611756China

The Digital Elevation Model(DEM)data of debris flow prevention engineering are the boundary of a debris flow prevention simulation,which provides accurate and reliable DEM data and is a key consideration in debris flow prevention ***,this paper proposes a multi-source data fusion ***,we constructed 3D models of debris flow prevention using virtual reality technology according to the relevant *** 3D spatial data generated by 3D modeling were converted into DEM data for debris flow prevention ***,the accuracy and applicability of the DEM data were verified by the error analysis testing and fusion testing of the debris flow prevention ***,we propose the Levels of Detail algorithm based on the quadtree structure to realize the visualization of a large-scale disaster prevention *** test results reveal that the data fusion method controlled the error rate of the DEM data of the debris flow prevention engineering within an allowable range and generated 3D volume data(obj format)to compensate for the deficiency of the DEM data whereby the 3D internal entity space is not ***,the levels of detailed method can dispatch the data of a large-scale debris flow hazard scene in real time to ensure a realistic 3D *** summary,the proposed methods can be applied to the planning of debris flow prevention engineering and to the simulation of the debris flow prevention process.

关键词： Debris flow prevention Level of detail Debris flow simulation Multi platform fusion Multi source data fusion

Implementing VLPR systems based on TMS320DM642

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第12期8卷 2005-2016页

作者： ZHU Le-qing ZHANG San-yuan ye Xiu-zi School of Computer Science and Technology Zhejiang University Hangzhou 310027 China

This paper gives a practical schema for using DSP boards to construct Vehicle License Plate Recognition (VLPR) modules that could be embedded in any Intelligent Transportation System (ITS). Using DSP can avoid the heavy investment in dedicated VLPR system and improve the computational power compared to PC software environment. Low cost, high computational power, and high flexibility of DSP provide the License Plate Recognition System (LPRS) an excellent cost-effective solution to execute the major part of the recognition tasks. This paper describes a successful implementation of VLPR system based on Texas Instruments (TI)'s TMS320DM642. The DSP board acquires video (which could be output to a monitor for surveillance) from a camera, captures images from the video, locates and recognizes the license plates in images, and then sends the recognized results and related images after compression to a host PC through the network. Finally, the overall software is optimized according to the features of DM642 chip. Experiments showed that the DSP VLPR system performs well on the local license plates, and that the processing speed and accuracy can meet the requirement of practical applications.

关键词： License Plate Recognition (LPR) Embedded system Image processing DSP DM642

Anti-plagiarism policy of JZUS-A/B & FITEE

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2015年第6期16卷 507-512页

作者： Yue-hong(Helen)ZHANG Han-feng LIN qing ye Journals of Zhejiang University-SCIENCE A/B Frontiers of Information Technology & Electronic Engineering

As Morris et al. （2013） indicated ＇it is a very good idea to have a policy in place for dealing with these [ethical] issues＇, and based on the ethical code and flowcharts of the Committee on Publication Ethics （COPE）1 and our experience at Journals of Zhejiang University-SCIENCE A/B ＆ FITEE, we have posted the 2015 JZUS-policy online （http：//***/jzus/***）. It includes three sections： Forms of Plagiarism, Anti-Plagiarism Policy, and CrossCheck Workflow. The following is the full text of this policy.

关键词：剽窃伦理规范浙江大学 HTTP 莫里斯流程图委员会 PHP