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Fusion of visible and thermal images for facial expression recognition

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Frontiers of Computer Science 2014年第2期8卷 232-242页

作者： shangfei WANG shan HE yue WU Menghua HE Qiang JI School of Computer Science and Technology University of Science and Technology of China Hefei 230027 China Key Lab of Computing and Communicating Software of Anhui Province Hefei 230027 China Department of Electrical Computer and Systems Engineering Rensselaer Polytechnic Institute Troy NY12180-3590 USA

Most present research into facial expression recognition focuses on the visible spectrum, which is sen- sitive to illumination change. In this paper, we focus on in- tegrating thermal infrared data with visible spectrum images for spontaneous facial expression recognition. First, the ac- tive appearance model AAM parameters and three defined head motion features are extracted from visible spectrum im- ages, and several thermal statistical features are extracted from infrared （IR） images. Second, feature selection is per- formed using the F-test statistic. Third, Bayesian networks BNs and support vector machines SVMs are proposed for both decision-level and feature-level fusion. Experiments on the natural visible and infrared facial expression （NVIE） spontaneous database show the effectiveness of the proposed methods, and demonstrate thermal 1R images＇ supplementary role for visible facial expression recognition.

关键词： facial expression recognition feature-level fu-sion decision-level fusion support vector machine Bayesiannetwork thermal infrared images visible spectrum images

Intraspecific DNA methylation polymorphism in the non-edible oilseed plant castor bean

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Plant Diversity 2017年第5期39卷 300-307页

作者： shan He Wei Xu Fei Li yue Wang Aizhong Liu Department of Economic Plants and Biotechnology Yunnan Key Laboratory for Wild Plant ResourcesKunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China University of Chinese Academy of Sciences Beijing 100049China

Investigation of the relationships of phenotypic and epigenetic variations might he a good way to dissect the genetic or molecular basis of phenotypic variation and plasticity in plants, Castor bean （Ricinus cornraunis L）, an important non-edible oilseed crop, is a mono-species genus plant in the family Euphorbiaceae. Since it displays rich phenotypic variations with low genetic diversity, castor bean is a good model to investigate the molecular basis of phenotypic and epigenetic variations. Cytosine DNA methylation represents a major molecular mechanism of epigenetic occurrence. In this study, epigenetic diversity of sixty landrace accessions collected worldwide was investigated using the methylation- sensitive amplification polymorphism （MSAP） technique, Results showed that the epigenetic diversity （based on the polymorphism of DNA methylated loci） exhibited a medium variation （Ne = 1.395, He = 0.242, I = 0.366） at the population level though the variation was great, ranging from 3,80% to 3431% among accessions. Both population structure analysis and the phylogenetic construction （using the neighbor-joining criteria） revealed that the two main clades were identified, but they did not display a distinct geographic structure, After inspecting the location of polymorphic methylated loci on genome we identified that the polymorphic methylated loci occur widely in nuclear and organelle genomes. This study provides new data to understand phenotypic and epigenetic variations in castor bean,

关键词： jRicinus communis L. Epigenetic diversity Methylation-sensitive amplification polymorphism DNA methylation

Effect of Methanol on Photosynthesis and Chlorophyll Fluorescence of Flag Leaves of Winter Wheat

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Agricultural Sciences in China 2008年第4期7卷 432-437页

作者： ZHENG yue-jin YANG yue-qin LIANG shan-shan YI Xian-feng College of Agriculture Henan University of Science and Technology Luoyang 471003 P.R.China

Photosynthesis and chlorophyll a fluorescence parameters, photochemical efficiency of PS II （Fv/Fm）, photochemical quenching of PS II （qP）, nonphotochemical quenching of PS II （NPQ）, maximum activity of PS II （Fv/Fo） as well as electron transport rate （ETR）, and quantum yield of PS II （ФPS II） were measured on flag leaves of the winter wheat treated by methanol at different concentrations. The results revealed that photosynthesis was greatly improved by methanol, as indicated by higher photosynthetic rates and stomatal conductance. The enhancement effect of methanol on photosynthesis was maintained for 3-4 days. Different methanol concentration treatments also increased intercellular CO2 concentration and transpiration rates. No significant decline was found in Fv/Fm, Fv/Fo, and ФPS II, which revealed no photoinhibition during methanol application in different methanol concentrations. Methanol showing no apparent inhibitory effects indicated higher potential photosynthetic capacity of flag leaves of winter wheat. However, the increase in photosynthesis was not followed by an increase in the photosynthetic activity （Fv/Fm）, and fluorescence parameters did not indicate an improvement in intercellular CO2 concentration and PS II photochemical efficiency compared with the control, thereby encouraging us to propose that lower leaf temperatures caused by applied methanol would reduce both dark respiration and photorespiration （most importantly）, thus, increasing net CO2 uptake and photosynthetic rates.

关键词： methanol photosynthetic activity chlorophyll fluorescence flag leaf winter wheat

Inner wall running state monitoring for the main pipe of nuclear power

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Science China(Technological Sciences) 2013年第10期56卷 2606-2614页

作者： ZHANG YuCun zhou shan FU XianBin Institute of Electrical Engineering Yanshan University

The heat conduction equation is solved in this paper under specific boundary *** coefficients of the obtained distribution equation are simplified with the piecewise integral *** the associated model for the cylindrical thermal equipment is *** relationship of the surface temperatures,the material properties and the inner wall state of the cylindrical thermal equipment is described in the associated *** model is applied to the inner wall running state monitoring of the main pipe.A multi-channel distributed optical fiber temperature measurement system is designed to acquire the external surface temperatures of the main *** the associated model can be used to analyze the surface temperature data of the main *** location and the physical dimension of the inner wall defect can be ***,the inner wall defect monitoring of the main pipe can be *** feasibility of this method is verified by *** method also provides a theoretical basis for the real-time monitoring of the main pipe’s internal state.

关键词： inner wall defect running state monitoring multi-channel distributed optical fiber temperature measurement mainpipe of nuclear power

Effect of Cr_(2)O_(3) on properties of CaO-SiO_(2)-Fe_(t)O-MgO system and dissolution behavior of lime

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Journal of Iron and Steel Research International 2024年第4期31卷 870-881页

作者： shan-nan Li Jian-li Li yue Yu Hang-yu Zhu The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The productivity of the chrome-containing semi-steel converter smelting process is directly affected by the slag-forming speed during the converter preliminary *** effects of Cr_(2)O_(3) content on the physicochemical properties of the CaO-SiO_(2)-Fe_(t)O-MgO system,such as melting temperature,solidification behavior,mineral composition,and lime dissolution rate,were *** results showed that the slag was an amorphous phase at 1500℃.When Cr_(2)O_(3) was added,Ca(Fe,Mg)Si_(2)O_(6) and spinel were formed in the *** the increase in Cr_(2)O_(3) content,the amount of spinel precipitation increased,and the dendritic FegO_(4) crystal gradually changed into the granular(Fe,Mg)(Fe,Cr)2O_(4) *** the Cr_(2)O_(3) content increased from O to 2.91 wt.%,the melting temperature of the slag rose,and the melting range of the slag expanded slightly,but the lime dissolution rate did not *** the Cr_(2)O_(3) content further increased to 9.09 wt.%,the melting temperature continued to rise,the melting range rapidly expanded,and the lime dissolution rate decreased.

关键词： Cr_(2)O_(3) Vanadium-titanium magnetite Converter Slag Lime dissolution

HOTCAP:a new software package for high-speed oscilloscopebased three-dimensional bunch charge and position measurement

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Nuclear Science and Techniques 2021年第11期32卷 163-173页

作者： Xing-Yi Xu Yong-Bin Leng Bo Gao Yi-Mei zhou shan-shan Cao Jian Chen Fang-zhou Chen shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201204China

A software package to be used in high-speed oscilloscope-basedthree-dimensionalbunch-by-bunch charge and position measurement is *** software package takes the pick-up electrode signal waveform recorded by the high-speed oscilloscope as input,and it calculates and outputs the bunch-by-bunch charge and *** addition to enabling a three-dimensional observation of the motion of each passing bunch on all beam position monitor pick-up electrodes,it offers many additional features such as injection analysis,bunch response function reconstruction,and turn-by-turn beam *** software package has an easy-to-understand graphical user interface and convenient interactive operation,which has been verified on the Windows 10 system.

关键词： Bunch-by-bunch measurement HOTCAP software package Data analysis High-speed oscilloscope

职业接触抗癌药物护士的外周血淋巴细胞微核组学分析

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职业与健康 2021年第4期37卷 458-462页

作者：黄超牛晓威高朝贤陈昌蕊梅小红周玥杉黄小红遵义医科大学珠海校区广东珠海519090 河北华清环境科技股份有限公司实验室河北石家庄050000 深圳市职业病防治院病理毒理所广东深圳518001 深圳市龙岗中心医院护理部广东深圳518116

目的通过对配置处理抗癌药物的护士进行外周血淋巴细胞微核组学分析,评估职业暴露于抗癌药物的遗传毒性危害。方法采用目的抽样方法,根据是否接触抗癌药物,选取2019年3—5月在深圳市龙岗中心医院和龙岗区人民医院常规使用抗癌药物治疗... 详细信息

目的通过对配置处理抗癌药物的护士进行外周血淋巴细胞微核组学分析,评估职业暴露于抗癌药物的遗传毒性危害。方法采用目的抽样方法,根据是否接触抗癌药物,选取2019年3—5月在深圳市龙岗中心医院和龙岗区人民医院常规使用抗癌药物治疗的肿瘤内科、血液内科、妇科、输液室、心胸外科以及甲乳外科的82名女性护士为暴露组,选取90名未接触抗癌药物的护士作为非暴露组,问卷调查两组调查对象个人资料,胞质分裂阻滞微核细胞组学试验检测其遗传毒性损伤。结果暴露组平均微核细胞率、平均微核率分别为(5.07±2.62)‰和(5.71±3.29)‰,显著高于非暴露组[(3.70±2.51)‰和(4.06±2.88)‰],差异均有统计学意义(均P<0.05);暴露组平均微核细胞率和平均微核率在不同年龄、工龄、接触抗癌药物年限以及不同专科间比较,差异均有统计学意义(均P<0.05)。结论长期职业接触抗癌药物的护士潜在遗传毒性损伤,危害程度可能随暴露时间的增加而递增,应重视抗癌药物对肿瘤相关科室护士的职业健康危害,建议增加外周血淋巴细胞微核组学体检项目,及时发现异常检测结果,实现预防职业伤害,促进职业健康的目的。

关键词：职业暴露抗癌药物护士微核胞质分裂阻滞微核细胞组学试验遗传毒性

Robust Sensor Bias Estimation for Ill-Conditioned Scenarios

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Tsinghua Science and Technology 2012年第3期17卷 319-323页

作者： Xiongjie Du yue Wang Xiuming shan Department of Electronic Engineering Tsinghua UniversityBeijing 100084China

Sensor bias estimation is an inherent problem in multi-sensor data fusion systems. Classical methods such as the Generalized Least Squares （GLS） method can have numerical problems with ill-conditioned sets which are common in practical applications. This paper describes an azimuth-GLS method that provides a solution to the ill-conditioning problem while maintaining reasonable accuracy com- pared with the classical GLS method. The mean square error is given for both methods as a criterion to de- termine when to use this azimuth-GLS method. Furthermore, the separation boundary between the azi- muth-GLS favorable region and that of the GLS method is explicitly plotted. Extensive simulations show that the azimuth-GLS approach is preferable in most scenarios.

关键词： data fusion sensor bias estimation ill-conditioning

Driving mechanisms of nitrogen transport and transformation in lacustrine wetlands

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Science China Earth Sciences 2016年第3期59卷 464-476页

作者： ZHAO shan zhou Nian Qing SHEN Xin Ping Department of Hydraulic Engineering Tongji UniversityKey Laboratory of Yangtze River Water Environment Ministry of Education Shanghai 200092 China School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA Dongting Lake Water Resources Administration Bureau of Hunan Province Changsha 410007 China

As an essential component of proteins and genetic material for all organisms, nitrogen(N) is one of the major limiting factors that control the dynamics, biodiversity and functioning of lacustrine wetlands, in which intensified N biogeochemical activities take place. Reactive N loaded into wetland ecosystems has been doubled due to various human activities, including industrial, agricultural activities and urbanization. The main driving mechanisms of N transport and transformation in lacustrine wetlands are categorized to pushing forces and pulling forces in this study. Geomorphology, wetland age, N concentrations, and temperature are the main pushing forces(passive forces); whereas water table variation, oxygen concentration, other elements availability, oxidation-reduction potential(Eh) and p H, and microorganisms are the predominant pulling forces(active forces). The direction and kinetic energy of reactions are determined by pulling forces and then are stimulated by pushing forces. These two types of forces are analyzed and discussed separately. Based on the analysis of driving mechanisms, possible solutions to wetland N pollutions are proposed at individual, regional and global scales, respectively. Additional research needs are addressed to obtain a thorough understanding of N transport and transformations in wetlands and to reduce detrimental impacts of excessive N on such fragile ecosystems.

关键词： Nitrogen Driving mechanisms Transport and transformation Excessive loading Lacustrine wetlands