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Chinese Journal of Electronics 2016年第3期25卷 474-480页

作者： zhang jing zhang Pei ZHUO Li Signal and Information Processing Laboratory Beijing University of Technology

Face diagnosis is one of the four diagnostic methods in Traditional chinese medicine(TCM). The morbidity of the organs can be revealed from the facial complexion. Due to the ambiguity of face diagnosis in TCM,Fuzzy support vector machine(FSVM) is utilized to remove the influence of outliers. The facial complexion recognition in TCM based on FSVM is proposed in this paper,which includes the following steps: 1) The facial cheek region are segmented as skin blocks; 2) The color feature in Lab color space is extracted from skin block to represent facial complexion characteristic; 3) The fuzzy membership is calculated to obtain the membership of the training samples, in which the final membership of training samples is determined by combining membership calculation based on distance with the facial complexion recognition based on color modeling; 4) The FSVM is built to classify facial complexion characteristic. Experimental results show that proposed facial complexion recognition has better antiinterference performance as well as a higher recognition rate up to 82%.

关键词： Traditional chinese medicine(TCM) Facial complexion recognition Fuzzy support vector machine(FSVM) Color modeling Fuzzy membership

Transfer RNA-derived small RNA serves as potential non-invasive diagnostic marker and a novel therapeutic target for acute pancreatitis

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World Journal of Gastroenterology 2025年第1期31卷 152-156页

作者： jing zhang Chun-Lin Ou Department of Immunology School of Basic MedicineCentral South UniversityChangsha 410000Hunan ProvinceChina Department of Pathology Xiangya HospitalCentral South UniversityChangsha 410008Hunan ProvinceChina

Transfer RNA(tRNA)-derived fragments,a new type of tRNA-derived small RNA(tsRNA),can be cleaved from tRNA by enzymes to regulate target gene expression at the transcriptional and translational *** are not only degradation fragments but also have biological functions,including those in immune inflammation,metabolic disorders,and cell *** dysregulation is closely associated with multiple diseases,including various cancers and acute pancreatitis(AP).AP is a common gastrointestinal disease,and its incidence increases *** development is associated with tsRNAs,which regulate cell injury and induce inflammation,especially pyroptosis and ***,serum tRF36 has the potential to serve as a non-invasive diagnostic biomarker and leads to pancreatic acinar cell ferroptosis causing inflammation to promote *** show the characteristics of tsRNAs and their diagnostic value and function in AP,and discuss the potential opportunities and challenges of using tsRNAs in clinical applications and research.

关键词： Transfer RNA derived small RNAs Acute pancreatitis Liquid biopsy Biomarker Cell pyroptosis Ferroptosis

Study on the driving factors and regulation mode for coal production capacity

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Petroleum Science 2021年第5期18卷 1564-1577页

作者： Wen-Sheng Wang jing-jing zhang School of Management China University of Mining and Technology-BeijingBeijing100083China

Coal production capacity regulation is a complex system involving economic growth,structural optimization,high-efficiency mining,and environmental *** on its driving factors,this paper forms four regulation modes representing different control orientations,establishes a system dynamics model,and predicts the regulation effects of single-factor and combined control *** result shows:(1) Except for the mechanization degree and recovery rate,the other nine individual production capacity control policies are all conducive to reducing coal production capacity and restraining the excessive growth of coal production capacity.(2) The effect of combined regulation mode on slowing down the growth of coal demand,regulating the excessive growth of coal production capacity and new capacity investment are obviously better than that of single policy.(3) The combined control modes have obvious differences in the suppression effect on coal production capacity:transformational development mode > technology-driven mode > structural optimization mode > efficiency improvement ***,in the process of achieving optimal regulation of coal production capacity,attention should be paid to the preferential use of transformational development and technology-driven *** the same time,the comprehensive use of regulation and control methods should also be considered to improve the regulation effect and the regulation efficiency of coal production capacity.

关键词： Coal production capacity Regulation mode Driving factors System dynamics model

Oscillation and variation for Riesz transform in setting of Bessel operators on H1 and BMO

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Frontiers of Mathematics in China 2020年第4期15卷 617-647页

作者： Xiaona CUI jing zhang College of Mathematics and Information Science Henan Normal UniversityXinxiang 453007China School of Mathematics and Statistics Yili Normal UniversityYining 835000China

Letλ〉0,and let the Bessel operator△λ:=-d2/dx2-2λ/x d/dx defined on R+:=(0,∞).We show that the oscillation andρ-variation operators of the Riesz transform R△λassociated with△λare bounded on BMO(R+,dmλ),whereρ>2 and dmλ=x2λ***,we construct a(1,∞)△λ-atom as a counterexample to show that the oscillation andρ-variation operators of R△λare not bounded from to L1(R+,dmλ).Finally,we prove that the oscillation and theρ-variation operators for the smooth truncations associated with Bessel operators R~△λare bounded from H1(R+:dmλ)to L1(R+,dmλ).

关键词： Oscillation operator variation operator Bessel operator

New model for load-sharing k-out-of-n:G system with different components

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Journal of Systems Engineering and Electronics 2008年第4期19卷 748-751,842页

作者： Tang Yinghui zhang jing School of Mathematics & Software Science Sichuan Normal Univ. Chengdu 610066 P. R. China

On the basis of capacity flow model, a new model is developed for a load-sharing k-out-of-n： G system consisting of different components, to describe the increase of the same component＇s failure rates under different loads. All components have exponential life distributions and are nonrepairable in the system. Reliability of load- sharing 2-out- of-3： G system is calculated and some special cases for the system are discussed. The calculation and discussions show that the model is right and practical.

关键词： load-sharing k-out-of-n: G system system reliability

Iron-Catalyzed Amide Bond Formation from Carboxylic Acids and Isocyanates

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Chinese Journal of Chemistry 2023年第23期41卷 3268-3274页

作者： Lingjian Zi jing zhang The Institute for Advanced Studies Wuhan UniversityWuhanHubei430072 China

We describe an iron-catalyzed amide bond formation from readily available carboxylic acids and *** method utilizes an abundant and biocompatible iron catalyst and easily accessible starting materials,generates CO_(2) as the only byproduct,and features broad substrate scopes with good functional group ***,it provides a cost-effective and practical protocol to access a diverse variety of amides.

关键词： Iroen Carboxylic acids Amides C—N bond formation Rearrangement

The MFE-CFE-GFE Method for the Fully Coupled Quasi-Static Thermo-Poroelastic Problem

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Numerical Mathematics(Theory,Methods and Applications) 2023年第3期16卷 792-819页

作者： jing zhang Hongxing Rui School of Mathematics Shandong UniversityJinanShandong 250100China

In this work,we consider a combined finite element method for fully coupled nonlinear thermo-poroelastic model *** mixed finite element(MFE)method is used for the pressure,the characteristics finite element(CFE)method is used for the temperature,and the Galerkin finite element(GFE)method is used for the elastic *** semi-discrete and fully discrete finite element schemes are established and the stability of this method is *** derive error estimates for the pressure,temperature and *** numerical examples are presented to confirm the accuracy of the method.

关键词： Quasi-static thermo-poroelasty characteristics finite element method porous media numerical experiments

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动车组齿轮箱油中硫含量的红外光谱分析

光谱学与光谱分析 2025年第1期45卷 239-245页

作者：杜瑾瑶贺石中杨智宏张琳颖张静茹广州机械科学研究院有限公司设备润滑与检测研究所广东广州510530 工业摩擦润滑技术国家地方联合工程研究中心广东广州510530

针对高铁动车组牵引系统中齿轮箱润滑油中硫元素损失较快的问题,需要对在用齿轮油硫含量进行监测,以确定最佳的换油时机。分析了红外光谱图中齿轮油含硫添加剂特征吸收峰的衰减机制;选择与硫含量相关性最高的1164 cm-1特征峰的峰高作为... 详细信息

针对高铁动车组牵引系统中齿轮箱润滑油中硫元素损失较快的问题,需要对在用齿轮油硫含量进行监测,以确定最佳的换油时机。分析了红外光谱图中齿轮油含硫添加剂特征吸收峰的衰减机制;选择与硫含量相关性最高的1164 cm-1特征峰的峰高作为输入变量构建了一元线性回归模型(LR),采用5折交叉验证下的测试集R^(2)确定最佳主成分个数构建了偏最小二乘回归模型(PLSR),最后根据偏最小二乘回归系数优选了6个特征吸收峰用于构建特征峰优化后的PLSR模型(RF-PLSR)。采用所建的模型分别对预测集39个油样进行预测,结果表明一元线性回归模型和偏最小二乘回归模型均具有很好的预测能力。一元线性回归模型的预测R^(2)为0.961,RMSE为973.1,RPD为5.084。PLSR模型和特征峰优化后的RF-PLSR模型的预测R^(2)分别为0.997和0.994,RMSE分别为250.1和376.3,RPD分别为19.780和13.149。说明经过特征峰优化后建立的RF-PLSR模型在降低模型复杂度的同时,仍可以保持较高的精度和预测能力,由于消除了不相关变量的信息,使模型的可解释性更好。红外光谱技术为齿轮油中硫含量的检测提供了一种可靠而精确的方法,为齿轮油的状态监测提供一种可行的解决方案。

关键词：齿轮箱油硫含量红外光谱在用油监测

OsLEC1/OsHAP3E Participates in the Determination of Meristem Identity in Both Vegetative and Reproductive Developments of Rice

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Journal of Integrative Plant Biology 2013年第3期55卷 232-249页

作者： jing-jing zhang Hong-Wei Xue National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and EcologyShanghai Institutes for Biological SciencesChinese Academy of Sciences

In the vegetative phase of plant development, the shoot apical meristem （SAM） produces leaf primordia in regular phyllotaxy, and transforms to the inflorescence meristem when the plant enters reproductive growth, which will undergo a series of identity differentiations and will finally form a complete and fertile panicle. Our previous studies indicated a tissue-specific expression pattern of the OsLEC1 （leafy cotyledon） gene, which is homologous to the Arabidopsis AtLEC1 gene and belongs to the CCAAT-binding protein HAP3 subfamily, during embryo development. Expression of additional OsLEC1 genomic sequences resulted in abnormalities in the development of leaves, panicles and spikelets. The spikelets in particular presented abnormities, including panicle and spikelet-like structures that occurred reiteratively inside prior spikelets, and the occasional spikelet structures that completely transformed into plantlets （a reproductive habit alteration from sexual to asexual called ＂pseudovivipary＂）. Analysis showed that OsLEC1 interacts with several SEPALLATA-like MADS transcription factors, suggesting that increased levels of the OsLEC1 protein might interfere with the normal interaction network of these MADS proteins and lead to defective spikelet development. The expression of OsMADS1 was dramatically reduced, and the DNA methylation level of cytosine in certain regions of the OsMADS1 promoter was increased under OsLEC1 overexpression. These results indicate that OsLEC1 affects the development of leaves, panicles and spikelets, and is a key regulator of meristem identity determination in both rice （Oryza sativa） vegetative and reproductive development.

关键词： Rice OsLECl meristem identity panicle MADS-box transcription factor.

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International Journal of Disaster Risk Science 2020年第4期11卷 466-483页

作者： jing zhang Zhao zhang Fulu Tao Key Laboratory of Environmental Change and Natural Hazards of the Ministry of Education Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Institute of Geographical Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China

Rainfall-relatedhazards—deficitrainand excessive rain—inevitably stress crop production,and weather index insurance is one possible financial tool to mitigate such agro-metrological *** this study,we investigated where two rainfall-related weather indices—anomaly-based index(AI)and humidity-based index(HI)—could be best used for three main crops(rice,wheat,and maize)in China’s main agricultural zones.A county is defined as an“insurable county”if the correlation between a weather index and yield loss was *** maize-cropping counties,both weather indices identified more insurable counties for deficit rain than for excessive rain(AI:172 vs 63;HI:182 vs 68);moreover,AI identified lower basis risk for deficit rain in most agricultural zones while HI for excessive *** rice,the number of AIinsurable counties was higher than the number of HI-insurable counties for deficit rain(274 vs 164),but lower for excessive rain(199 vs 272);basis risks calculated by two weather indices showed obvious difference only in Zone ***,more wheat-insurable counties(AI:196 vs 71;HI:73 vs 59)and smaller basis risk indicate that both weather indices performed better for excessive rain in wheatplanting *** addition,most insurable counties showed independent yield loss,but did not necessarily result in effective risk *** study is a primary evaluation of rainfall-related weather indices for the three main crops in China,which will be significantly helpful to the agricultural insurance market and governments’policy making.

关键词： Agricultural insurance China Deficit rain Excessive rain Risk pooling Weather index