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Intelligent Fault Diagnosis in Lead-zinc Smelting Process

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International Journal of Automation and computing 2007年第2期4卷 135-140页

作者： wei-hua gui Chun-hua Yang Jing Teng School of Information Science ＆ Engineering Central South University Changsha 410083 PRC

According to the fault characteristic of the imperial smelting process （ISP）, a novel intelligent integrated fault diagnostic system is developed. In the system fuzzy neural networks are utilized to extract fault symptom and expert system is employed for effective fault diagnosis of the process. Furthermore, fuzzy abductive inference is introduced to diagnose multiple faults. Feasibility of the proposed system is demonstrated through a pilot plant case study.

关键词： Fault diagnosis fuzzy logic expert system neural network inference.

A Novel Minkowski-distance-based Consensus Clustering Algorithm

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International Journal of Automation and computing 2017年第1期14卷 33-44页

作者： De-Gang Xu Pan-Lei Zhao Chun-hua Yang wei-hua gui Jian-Jun He College of Information Science and Engineering Central South University Changsha 410083 China

Consensus clustering is the problem of coordinating clustering information about the same data set coming from different runs of the same algorithm. Consensus clustering is becoming a state-of-the-art approach in an increasing number of applications. However, determining the optimal cluster number is still an open problem. In this paper, we propose a novel consensus clustering algorithm that is based on the Minkowski distance. Fusing with the Newman greedy algorithm in complex networks, the proposed clustering algorithm can automatically set the number of clusters. It is less sensitive to noise and can integrate solutions from multiple samples of data or attributes for processing data in the processing industry. A numerical simulation is also given to demonstrate the effectiveness of the proposed algorithm. Finally, this consensus clustering algorithm is applied to a froth flotation process.

关键词： Minkowski distance consensus clustering similarity matrix process data froth flotation.

Stability of Boolean networks with state-dependent random impulses

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Frontiers of Information Technology & Electronic Engineering 2021年第2期22卷 222-231页

作者： Ya-wen SHEN Yu-qian GUO wei-hua gui School of Automation Central South UniversityChangsha 410083China

We investigate the stability of Boolean networks(BNs)with impulses triggered by both states and random factors.A hybrid index model is used to describe impulsive ***,several necessary and sufficient conditions for forward completeness are ***,based on the stability criterion of probabilistic BNs and the forward completeness criterion,the necessary and sufficient conditions for the finite-time stability with probability one and the asymptotical stability in distribution are *** relationship between these two kinds of stability is ***,examples and time-domain simulations are provided to illustrate the obtained results.

关键词： Boolean network with impulses Forward completeness Finite-time stability with probability one Asymptotical stability in distribution

Output feedback stabilizer design of Boolean networks based on network structure

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Frontiers of Information Technology & Electronic Engineering 2020年第2期21卷 247-259页

作者： Jie ZHONG Bo-wen LI Yang LIU wei-hua gui College of Mathematics and Cmnputer Sciencef Zhejtang Normal University Jinhua 321004China School of Information Science and Engineering Southeast UniversityNanjing 210096China School of Cyber Science and Engineering Southeast UniversityNanjing 210096China School of Automation Central South UniversityChangsha 410083China

In genetic regulatory networks,a stable configuration can represent the evolutionary behavior of cell death or unregulated growth in *** present analytical investigations on output feedback stabilizer design of Boolean networks(BNs)to achieve global stabilization via the semi-tensor product *** on network structure information describing coupling connections among nodes,an output feedback stabilizer is designed to achieve global *** with the traditional pinning control design,the output feedback stabilizer design is not based on the state transition matrix of BNs,which can efficiently determine pinning control nodes and reduce computational *** proposed method is efficient in that the calculation of the state transition matrix with dimension 2^n×2^n is avoided;here n is the number of nodes in a ***,a signal transduction network and a *** segmentation polarity gene network are presented to show the efficiency of the proposed *** are shown to be simple and concise,compared with traditional pinning control for BNs.

关键词： Boolean networks Output feedback stabilizer Network structure Semi-tensor product of matrices

Interactive image segmentation with a regression based ensemble learning paradigm

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Frontiers of Information Technology & Electronic Engineering 2017年第7期18卷 1002-1020页

作者： Jin ZHANG Zhao-hui TANG wei-hua gui Qing CHEN Jin-ping LIU School of Information Science and Engineering Central South University Changsha 410083 China College of Computer and Communication Hunan University of Technology Zhuzhou 412007 China College of Mathematics and Computer Science Hunan Normal University Changsha 410083 China

To achieve fine segmentation of complex natural images, people often resort to an interactive segmentation paradigm, since fully automatic methods often fail to obtain a result consistent with the ground truth. However, when the foreground and background share some similar areas in color, the fine segmentation result of conventional interactive methods usually relies on the increase o f manual labels. This paper presents a novel interactive image segmentation method via a regression-based ensemble model with semi-supervised learning. The task is formulated as a non-linear problem integrating two complementary spline regressors and strengthening the robustness of each regressor via semi-supervised learning. First, two spline regressors with a complementary nature are constructed based on multivariate adaptive regression splines （MARS） and smooth thin plate spline regression （TPSR）. Then, a regressor boosting method based on a clustering hypothesis and semi-supervised learning is proposed to assist the training of MARS and TPSR by using the region segmentation information contained in unlabeled pixels. Next, a support vector regression （SVR） based decision fusion model is adopted to integrate the results of MARS and TPSR. Finally, the GraphCut is introduced and combined with the SVR ensemble results to achieve image segmentation. Extensive experimental results on benchmark datasets of BSDS500 and Pascal VOC have demonstrated the effectiveness of our method, and the com- parison with experiment results has validated that the proposed method is comparable with the state-of-the-art methods for in- teractive natural image segmentation.

关键词： Interactive image segmentation Multivariate adaptive regression splines (MARS) Ensemble learning Thin-platespline regression (TPSR) Semi-supervised learning Support vector regression (SVR)

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推扫式高光谱相机自动调焦

光学精密工程 2019年第2期27卷 450-457页

作者：魏桂华肖亮郑志忠南京理工大学计算机科学与工程学院南京210000 江苏省光谱成像与智能感知重点实验室南京210000 南京航空航天大学南京210000 中国地质调查局南京地质调查中心南京210000

自动调焦方法已被广泛应用到各种光学仪器中。为了解决推扫式高光谱相机自动调焦问题,提出了一种利用基于四元数小波变换的光谱质量评价函数估计相机焦距的方法。首先将推扫线上单行光谱数据顺序排列成一个二维矩阵,利用四元数小波变换... 详细信息

自动调焦方法已被广泛应用到各种光学仪器中。为了解决推扫式高光谱相机自动调焦问题,提出了一种利用基于四元数小波变换的光谱质量评价函数估计相机焦距的方法。首先将推扫线上单行光谱数据顺序排列成一个二维矩阵,利用四元数小波变换对光谱像元矩阵进行分解得到低频和高频4个子带。通过对低频和高频的幅值和相位信息构造光谱质量评价函数,指导相机自动调焦。调焦过程中,利用自动调焦机构按一定步长旋转镜头,计算不同离焦状态下的光谱质量指标值,拟合光谱质量指标值与镜头伸缩量之间的高斯分布函数,最终估算最佳调焦量。实验表明,提出的光谱质量评价函数灵敏度高、准确度强。该调焦方法仅利用单行光谱数据进行调焦,调焦准确。

关键词：高光谱相机光谱分析评价函数调焦系统小波变换

科罗索酸增强右美托咪定对链尿佐菌素诱导的糖尿病大鼠心肌氧化应激和凋亡的保护作用

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中国免疫学杂志 2018年第8期34卷 1148-1152页

作者：姜华王维强魏桂花成都市第三人民医院麻醉科成都610031 西南交通大学生命科学与工程学院

目的:探究科罗索酸对右美托咪定抗链尿佐菌素(STZ)诱导糖尿病大鼠心肌氧化应激和心肌细胞凋亡作用的影响。方法:将60只雄性SD大鼠随机分为对照(Ctrl)组、STZ组,科罗索酸(CA)组、右美托咪定(DEX)组和CA+DEX组,除Ctrl组外,其余组大鼠腹腔... 详细信息

目的:探究科罗索酸对右美托咪定抗链尿佐菌素(STZ)诱导糖尿病大鼠心肌氧化应激和心肌细胞凋亡作用的影响。方法:将60只雄性SD大鼠随机分为对照(Ctrl)组、STZ组,科罗索酸(CA)组、右美托咪定(DEX)组和CA+DEX组,除Ctrl组外,其余组大鼠腹腔注射STZ(60 mg/kg)诱导糖尿病大鼠模型。模型复制成功后分别给予DEX(20μg/kg)和CA(20 mg/kg),7 d后处死大鼠,HE染色检测心肌损伤情况,试剂盒检测血清肌红蛋白(Mb)、肌酸激酶同工酶(CK-MB)、肌钙蛋白I(c Tn I)、超氧化物歧化酶(SOD)和丙二醛(MDA)的浓度;Western blot检测Ki67和Caspase-3的表达;ELISA检测血清肿瘤坏死因子-α(TNF-α)和白介素-6(IL-6)的含量。结果:与Ctrl组比较,STZ组大鼠心肌组织损伤加重;与STZ组比较,DEX组大鼠心肌损伤有所减轻,CA组效果甚微;但CA+DEX组大鼠心肌损伤明显轻于DEX组;同时,DEX能显著降低模型大鼠血清Mb、CK-MB和c Tn I浓度,并能升高血清SOD浓度、降低MDA浓度,CA效果较弱,但CA能显著增强DEX对Mb、CK-MB、CTNI、SOD和MDA分泌的调控作用;此外,与STZ组比较,DEX组大鼠Ki67表达明显上调,Caspase-3表达明显减少,CA对Ki67和Caspase-3的调控作用较弱,但能显著增强DEX对Ki67和Caspase-3表达的调控作用。DEX还能显著抑制炎症因子TNF-α和IL-6的分泌,CA能增强DEX对TNF-α和IL-6分泌的抑制作用。结论:CA能增强DEX对STZ诱导的糖尿病大鼠心肌氧化应激和心肌细胞凋亡的抑制作用。

关键词：科罗索酸糖尿病心肌损伤氧化应激凋亡

Overlapped peaks resolution for linear sweep polarography using Gaussian-like distribution

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Transactions of Nonferrous Metals Society of China 2013年第7期23卷 2181-2186页

作者：朱红求王国伟阳春华曹宇桂卫华中南大学信息科学与工程学院长沙410083 中南大学冶金科学与工程学院长沙410083

A resolution method based on Gaussian-like distribution for overlapped linear sweep polarographic peaks was proposed to simultaneously detect the polymetallic components, such as Zn（Ⅱ） and Co（Ⅱ）, coexisting in the leaching solution of zinc hydrometallurgy. A Gaussian-like distribution was constructed as the sub-model of overlapped peaks by analyzing the characteristics of linear sweep polarographic curve. Then, the abscissas of each peak and trough were pinpointed through multi-resolution wavelet decomposition, the curve and its derivative curves were fitted by using nonlinear weighted least squares （NWLS）. Finally, overlapped peaks were resolved into independent sub-peaks based on fitted reconstruction parameters. The experimental results show that the relative error of half-wave potential pinpointed by multi-resolution wavelet decomposition is less than 1% and the accuracy of Ip fitted by NWLS is higher than 96%. The proposed resolution method is effective for overlapped linear sweep polarographic peaks of Zn（Ⅱ） and Co（Ⅱ）.

关键词： zinc hydrometallurgy Gaussian-like distribution overlapped peaks resolution multi-resolution wavelet decomposition nonlinear weighted least squares fitting

X—RAY STRUCTURE OF A SEMICONDUCTING ORGANOMETALLIC SALT,[FeCp(Tol)]_2[Ni(mnt)_2]

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Chinese Chemical Letters 1993年第6期4卷 561-562页

作者： wei hua ZHOU Jin gui QIN Dao Yu LIU Department of Chemistry,Wuhan University,Wuhan 430072Ning Hai HU Zhong Sheng JIN Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022

The title compound was prepared and *** crystal Structure was determined by X—ray diffraction analysis,and consists of segregated cation and an- ion stacks in the perpendicular *** data:monoclinic,P2_1/c,Mr=765.21, a... 详细信息

关键词： FeCp RAY STRUCTURE OF A SEMICONDUCTING ORGANOMETALLIC SALT Tol mnt Ni