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Annoyance Rate Evaluation Method on Ride Comfort of Vehicle Suspension System

Chinese Journal of Mechanical Engineering 2014年第2期27卷 296-303页

作者： TANG Chuanyin ZHANG Yimin zhao guangyao MA Yan School of Mechanical Engineering and Automation Northeastern University Shenyang Academy of Instrumentation Science

The existing researches of the evaluation method of ride comfort of vehicle mainly focus on the level of human feelings to vibration. The level of human feelings to vibration is influenced by many factors, however, the ride comfort according to the common principle of probability and statistics and simple binary logic is tmable to reflect these uncertainties. The random fuzzy evaluation model from people subjective response to vibration is adopted in the paper, these uncertainties are analyzed from the angle of psychological physics. Discussing the traditional evaluation of ride comfort during vehicle vibration, a fuzzily random evaluation model on the basis of annoyance rate is proposed for the human body＇s subjective response to vibration, with relevant fuzzy membership function and probability distribution given. A half-car four degrees of freedom suspension vibration model is described, subject to irregular excitations from the road surface, with the aid of software Matlab/Simulink. A new kind of evaluation method for ride comfort of vehicles is proposed in the paper, i.e., the annoyance rate evaluation method. The genetic algorithm and neural network control theory are used to control the system. Simulation results are obtained, such as the comparison of comfort reaction to vibration environments between before and after control, relationship of annoyance rate to vibration frequency and weighted acceleration, based on ISO 2631 / 1 （1982）, ISO 2631-1 （1997） and annoyance rate evaluation method, respectively. Simulated assessment results indicate that the proposed active suspension systems prove to be effective in the vibration isolation of the suspension system, and the subjective response of human being can be promoted from very uncomfortable to a little uncomfortable. Furthermore, the novel evaluation method based on annoyance rate can further estimate quantitatively the number of passengers who feel discomfort due to vibration. A new analysis method of vehicl

关键词： evaluation method ride comfort annoyance rate genetic algorithm neural network

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A stochastic reconstruction strategy based on a stratified library of structural descriptors and its application in the molecular reconstruction of naphtha

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Chinese Journal of Chemical Engineering 2022年第11期51卷 153-167页

作者： guangyao zhao Minglei Yang Wenli Du Feifei Shen Feng Qian Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of EducationEast China University of Science and TechnologyShanghai 200237China

Molecular reconstruction is a rapid and reliable way to provide molecular detail of petroleum fractions,which is required in the kinetic modeling of petroleum conversation processes at the molecular *** the typical stochastic reconstruction method,the estimation of properties of pseudo molecules that are generated by Monte Carlo sampling depends on the building of predefined molecular libraries,which is expensive and inaccessible for certain petroleum *** this paper,a novel stochastic reconstruction strategy is proposed,which is based on a stratified library of structural *** of pseudo molecules generated in the novel strategy can be directly estimated by group contribution method in the condition of lacking predefined molecular *** this strategy,the molecular building diagram comprises two ***,the ring structure is configured by determining the number of *** from the length of chain adopted in the traditional stochastic reconstruction method,in the second step,number of structural descriptors(SDs)for binding site and chain were determined sequentially for the configuration of binding site and saturated acyclic hydrocarbon *** structural descriptors for binding site and chain were selected from group contribution *** count the number of partial overlapping sections between structural descriptors for chain,two supplementary structural descriptors were *** possible saturated structures of hydrocarbon chains can be represented by structural descriptors at the scale of property *** strategy separates the building of a predefined molecule library from the stochastic reconstruction *** exact structures of pseudo molecules represented by structural descriptors in this work can be determined with sufficient chemical *** naphtha samples are tested independently to demonstrate the performance of the proposed strategy and the results show that the estimated prop

关键词： Novel stochastic reconstruction strategy Stratified library of structural descriptors Group contribution method

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Molecular characterization and expression analysis of Triticum aestivum squamosa-promoter binding protein-box genes involved in ear development

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Journal of Integrative Plant Biology 2014年第6期56卷 571-581页

作者： Bin Zhang Xia Liu guangyao zhao Xinguo Mao Ang Li Ruilian Jing National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop Science the Chinese Academy of Agricultural Sciences College of Bioengineering Shanxi University

Wheat （Triticum aestivum L.） is one of the most important crops in the world. Squamosa-promoter binding protein （SBP）-box genes play a critical role in regulating flower and fruit development. In this study, 10 novel SBP-box genes （TaSPL genes） were isolated from wheat （（Triticum aestivum L.） cultivar Yanzhan 4110）. Phylogenetic analysis classified the TaSPL genes into five groups （G1-G5）. The motif combinations and expression patterns of the TaSPL genes varied among the five groups with each having own distinctive characteristics： TaSPL20/21 in G1 and TaSPL17 in G2 mainly expressed in the shoot apical meristem and the young ear, and their expression levels responded to development of the ear; TaSPL6/15 belonging to G3 were upregulated and TaSPL1/23 in G4 were downregulated during grain development; the gene in G5 （TaSPL3） expressed constitutively. Thus, the consistency of the phylogenetic analysis, motif compositions, and expression patterns of the TaSPL genes revealed specific gene structures and functions. On the other hand, the diverse gene structures and different expression patterns suggested that wheat SBP-box genes have a wide range of functions. The results also suggest a potential role for wheat SBP-box genes in ear development. This study provides a significant beginning of functional analysis of SBP-box genes in wheat.

关键词： Expression profile grain yield squamosa-promoter binding protein-box genes Triticum aestivum

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Identification and Validation of a Major Quantitative Trait Locus for Slow-rusting Resistance to Stripe Rust in Wheat

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Journal of Integrative Plant Biology 2012年第5期54卷 330-344页

作者： Xiaohua Cao Jianghong Zhou Xiaoping Gong guangyao zhao Jizeng Jia Xiaoquan Qi Key Laboratory of Plant Molecular Physiology Institute of BotanyChinese Academy of SciencesBeijing 100093China Graduate University of Chinese Academy of Sciences Beijing 100049China Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China These authors contributed equally to this article.

Stripe （yellow） rust, caused by Puccinia striiformis Westend. f. sp. tritici Eriks （Pst）, is one of the most important wheat （Triticum aestivum L.） diseases and causes significant yield losses. A recombinant inbred （RI） population derived from a cross between Yanzhan 1 and Xichang 76-9 cultivars was evaluated for resistance to wheat stripe rust strain CYR32 at both the seedling and adult plant stages. Four resistance quantitative trait loci （QTLs） were detected in this population, in which the major one, designated as Yrql, was mapped on chromosome 2DS. The strategy of using the Brachypodium distachyon genome, wheat expressed sequence tags and a draft DNA sequences （scaffolds） of the D-genome （Aegilops tauschfi Coss.） for the development of simple sequence repeat （SSR） markers was successfully used to identify 147 SSRs in hexaploid wheat. Of the 19 polymorphic SSRs in the RI population, 17 SSRs were mapped in the homeologous group 2 chromosomes near Yrql region and eight SSRs were genetically mapped in the 2.7 cM region of Yrql, providing abundant DNA markers for fine-mapping of Yrql and marker-assisted selection in wheat breeding program. The effectiveness of Yrql was validated in an independent population, indicating that this resistance QTL can be successfully transferred into a susceptible cultivar for improvement of stripe rust resistance.

关键词： Quantitative trait locus slow-rusting stripe rust wheat.

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Network Security Incidents Frequency Prediction Based on Improved Genetic Algorithm and LSSVM

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China Communications 2010年第4期7卷 126-131页

作者： zhao guangyao ZOU Peng HAN Weihong School of Computer Science National University of Defense Technology Changsha 410073 China College of Equipment Command ＆Technology Beijing 100029 China

Since the frequency of network security incidents is nonlinear,traditional prediction methods such as ARMA,Gray systems are difficult to deal with the *** the size of sample is small,methods based on artificial neural network may not reach a high degree of *** Squares Support Vector Machines (LSSVM) is a kind of machine learning methods based on the statistics learning theory,it can be applied to solve small sample and non-linear problems very *** paper applied LSSVM to predict the occur frequency of network security *** improve the accuracy,it used an improved genetic algorithm to optimize the parameters of *** by real data sets,the improved genetic algorithm (IGA) converges faster than the simple genetic algorithm (SGA),and has a higher efficiency in the optimization ***,the optimized LSSVM model worked very well on the prediction of frequency of network security incidents.

关键词： Genetic Algorithm LSSVM Network Security Incidents Time Series Prediction

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Organic salt-assisted liquid-phase shear exfoliation of expanded graphite into graphene nanosheets

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Journal of Materiomics 2021年第6期7卷 1181-1189页

作者： Bin Liang Kangwei Liu Peng Liu Long Qian guangyao zhao Weisheng Pan Chaojie Chen Division of Energy and Environment Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055PR China School of Materials Science and Engineering Tsinghua UniversityBeijing100084PR China

How to improve the efficiency of liquid-phase shear exfoliation(LPSE)for mass production of large-size graphene nanosheets still remains an ongoing *** this work,we have developed a LPSE method using a rotor-stator *** is quite simple and efficient by exfoliation of expanded graphite(EG)in Nmethyl-2-pyrrolidone(NMP)with the assistance of organic salts including sodium citrate,potassium citrate and sodium *** LPSE of EG in NMP can provide improved yields,up to 6 times as high as values from exfoliation of natural flake graphite(NFG).The additive of organic salts in NMP can make a further improvement in graphene yields,1.5 times higher than that obtained only in ***,the yields of the as-exfoliated graphene are as high as 10%under optimal conditions,and up to 50%after multiple-cycle *** salts in LPSE act as analogue grinding aids enhancing the applied shear forces and thus contributing to the improved efficiency of LPSE,but they do not intercalate into the interplanar spaces of *** facile LPSE method should have excellent potential in the large scale production of graphene nanosheets for numerous applications.

关键词： Graphene Liquid-phase shear exfoliation Organic salt Expanded graphite

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Wheat MADS-box gene TaSEP3-D1 negatively regulates heading date

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The Crop Journal 2021年第5期9卷 1115-1123页

作者： Lei Zhang Hao Zhang Linyi Qiao Lingfeng Miao Dong Yan Pan Liu guangyao zhao Jizeng Jia Lifeng Gao Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China Department of Biology Taiyuan Normal UniversityTaiyuan 030031ShanxiChina College of Agronomy Shanxi Agricultural UniversityTaiyuan 030031ShanxiChina

The MADS-box gene plays an important role in regulating plant growth and *** this study,a SEP3-like MADS-box gene TaSEP3-1 was isolated from bread *** expression patterns of the three homoeologs TaSEP3-A1,TaSEP3-B1,and TaSEP3-D1 were similar,and higher expression levels were detected in floral organs and developing ***3-D1 was located in the nucleus and cytoplasm and possessed transactivation activity in *** sequence polymorphism analysis identified four,three,and four haplotypes of TaSEP3-A1,TaSEP3-B1,and TaSEP3-D1,respectively,and the haplotypes of TaSEP3-D1 had larger effects on agronomic traits than those of TaSEP3-A1 and TaSEP3-B1.D1_h4,significantly associated with heading date,plant height,and other yield-related traits,was the favored haplotype of *** wheat genotypes overexpressing TaSEP3-D1 exhibited delayed heading and reduced plant height,indicating a role in regulating heading date and plant *** results shed light on the role of TaSEP3-D1 in wheat plant *** favored haplotype of TaSEP3-D1 can be applied in breeding to improve plant architecture and yield in wheat.

关键词： Agronomic traits Haplotypes Triticum aestivum

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High performance organic transistors and phototransistors based on diketopyrrolopyrrole-quaterthiophene copolymer thin films fabricated via low-concentration solution processing

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Chinese Chemical Letters 2018年第11期29卷 1675-1680页

作者： Pengcheng Gu Mengxiao Hu Shang Ding guangyao zhao Yifan Yao Feng Liu Xiaotao Zhang Huanli Dong Xiangke Wang Wenping Hu Beijing Key Laboratory for Optical Materials and Photonic Devices Department of Chemistry Capital Normal University Beijing 100048 China Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) & Department of Chemistry School of Science Tianjin University Tianjin 300072 China College of Environmental Science and Engineering North China Electric Power University Beijing 102206 China Department of Physics &Astronautics Shonghai Jiao Tong University Shanghai 200240 China

Conjugated polymers have received considerable attentions over the past years due to their large-area potential applications via low-cost solution processing. Improving crystallinity of conjugated polymer molecules in solution-processed thin films is crucial for their efficient charge transport and thus high performance optoelectronic devices. Herein, with diketopyrrolopyrrole-quaterthiophene （PDQT） copo/ymer as an example, it is found that by simply reducing the solution concentration for spincoating meanwhile with the assistance of post-annealing, significantly enhanced film crystallinity with formation of typical single crystalline domains is obtained, which benefits from the enough space for better molecular assembly especially at the semiconductor/dielectric interface. High performance polymer transistors and phototransistors were finally constructed based on the optimal lowconcentration （2 mg/mL） spin-coated PDQT films （～12 nm）, which giving a high charge carrier mobility of 2.28 cm2 V-1 s-1 and a photoresponse on/off ratio of 2.1 ×107 at VG = 0 V under white light irradiation of 6mW/cm2. The results suggest that the bright future of PDQT crystalline films for large-area flexible integrated optoelectronic devices and the application of effective low-concentration processing approach in solution-processed organic electronics with reduced material waste.

关键词： Conjugated polymer Thin film Low-concentration processing Crystallinity Molecular orders Mobility Optoelectronic property

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Stretchable,skin-conformable neuromorphic system for tactile sensory recognizing and encoding

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InfoMat 2023年第12期5卷 87-99页

作者： Mengge Wu Qiuna Zhuang Kuanming Yao Jian Li guangyao zhao Jingkun Zhou Dengfeng Li Rui Shi Guoqiang Xu Yingchun Li Zijian Zheng Zhihui Yang Junsheng Yu Xinge Yu State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China(UESTC)Chengduthe People's Republic of China Department of Biomedical Engineering City University of Hong KongHong Kongthe People's Republic of China Laboratory for Advanced Interfacial Materials and Devices School of Fashion and TextilesThe Hong Kong Polytechnic UniversityHong Kongthe People's Republic of China Hong Kong Center for Cerebra-Cardiovascular Health Engineering Hong Kong Science ParkHong Kongthe People's Republic of China College of Science Harbin Institute of TechnologyShenzhenthe People's Republic of China Department of Pathology The Affiliated Hospital of Southwest Medical UniversityLuzhouthe People's Republic of China

Expanding wearable technologies to artificial tactile perception will be of significance for intelligent human-machine interface,as neuromorphic sensing devices are promising candidates due to their low energy consumption and highly effective operating ***-compatible and conformable features are required for the purpose of realizing wearable artificial tactile ***,we report an intrinsically stretchable,skin-integrated neuromorphic system with triboelectric nanogenerators as tactile sensing and organic electrochemical transistors as information *** integrated system provides desired sensing,synaptic,and mechanical characteristics,such as sensitive response(~0.04 kPa^(-1))to low-pressure,short-and long-term synaptic plasticity,great switching endurance(>10000 pulses),symmetric weight update,together with high stretchability of 100%*** neural encoding,demonstrations are capable of recognizing,extracting,and encoding features of tactile *** work provides a feasible approach to wearable,skin-conformable neuromorphic sensing system with great application prospects in intelligent robotics and replacement prosthetics.

关键词： neural encoding neuromorphic sensing system organic electrochemical transistors tactile sensation triboelectric nanogenerators

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Genome sequencing of Sitopsis species provides insights into their contribution to the B subgenome of bread wheat

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Plant Communications 2023年第4期4卷 208-224页

作者： Yuxin Yang Licao Cui Zefu Lu Guangrong Li Zujun Yang guangyao zhao Chuizheng Kong Danping Li Yaoyu Chen Zhencheng Xie Zhongxu Chen Lichao Zhang Chuan Xia Xu Liu Jizeng Jia Xiuying Kong State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Center for Informational Biology School of Life Science and TechnologyUniversity of Electronic Science and Technology of ChinaChengdu 610054China Triticeae Research Institute Sichuan Agricultural UniversityChengdu 611130China

Wheat(Triticum aestivum,BBAADD)is an allohexaploid species that originated from two polyploidization *** progenitors of the A and D subgenomes have been identified as Triticum urartu and Aegilops tauschii,*** research suggests that Aegilops speltoides is the closest but not the direct ancestor of the B ***,whether *** has contributed genomically to the wheat B subgenome and which chromosome regions are conserved between *** and the B subgenome remain ***,we assembled a high-quality reference genome for ***,resequenced 53 accessions from seven species(Aegilops bicornis,Aegilops longissima,Aegilops searsii,Aegilops sharonensis,***,Aegilops mutica[*** muticum],and Triticumdicoccoides)and revealed their genomic contributions to the wheat B *** results showed that centromeric regions were particularly conserved between Aegilops and Triticum and revealed 0.17 Gb of conserved blocks between *** and the B *** classified five groups of conserved and non-conserved genes between Aegilops and Triticum,revealing their biological characteristics,differentiation in gene expression patterns,and collinear relationships between *** and the wheat B *** also identified gene families that expanded in *** during its evolution and 789 genes specific to *** genes can serve as genetic resources for improvement of adaptability to biotic and abiotic *** newly constructed reference genome and large-scale resequencing data for Sitopsis species will provide a valuable genomic resource for wheat genetic improvement and genomic studies.

关键词： Aegilops Sitopsis polyploid wheat B subgenome conserved blocks

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