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集成芯片硅微条探测器电子读出系统设计

核电子学与探测技术 2024年第4期44卷 703-710页

作者：武梦龙张家赫王东昱黄明龚轲彭文溪北方工业大学北京100144 中国科学院高能物理研究所北京100049

设计了基于VATA460.3专用集成芯片(ASIC)的多通道、低功耗带触发硅微条探测器读出系统,该系统实现了共32路粒子入射信息读出。测试结果表明:该系统各通道基线稳定,等效噪声水平均低于0.17 fC,动态范围可达90 fC。

关键词：硅微条探测器读出设计 VATA460.3 径迹探测器

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Innovative computational tools provide new insights into the polyploid wheat genome

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aBIOTECH 2024年第1期5卷 52-70页

作者： Yongming Chen wenxi Wang Zhengzhao Yang Huiru peng Zhongfu Ni Qixin Sun Weilong Guo Frontiers Science Center for Molecular Design Breeding Key Laboratory of Crop Heterosis and UtilizationBeijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China

Bread wheat(Triticum aestivum)is an important crop and serves as a significant source of protein and calories for humans,***,its large and allopolyploid genome poses constraints on genetic *** complex reticulate evolutionary history and the intricacy of genomic resources make the deciphering of the functional genome considerably more ***,we have developed a comprehensive list of versatile computational tools with the integration of statistical models for dissecting the polyploid wheat ***,we summarize the methodological innovations and applications of these tools and databases.A series of step-by-step examples illustrates how these tools can be utilized for dissecting wheat germplasm resources and unveiling functional genes associated with important agronomic ***,we outline future perspectives on new advanced tools and databases,taking into consideration the unique features of bread wheat,to accelerate genomic-assisted wheat breeding.

关键词： Polyploid wheat Genome complexity Functional genomics Tool development

Mechanoluminescent Materials Enable Mechanochemically Controlled Atom Transfer Radical Polymerization and Polymer Mechanotransduction

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Research 2024年第3期2023卷 97-104页

作者： Zexuan Li Zhenhua Wang Chen Wang wenxi Li Wenru Fan Ruoqing Zhao Haoyang Feng Dengfeng peng Wei Huang Frontiers Science Center for Flexible Electronics Institute of Flexible ElectronicsNorthwestern Polytechnical UniversityXi’an 710072China. School of Materials Science and Engineering Northwestern Polytechnical UniversityXi’an 710072China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China.

Organic mechanophores have been widely adopted for polymer ***,most examples of polymer mechanotransduction inevitably experience macromolecular chain rupture,and few of them mimic mussel’s mechanochemical regeneration,a mechanically mediated process from functional units to functional materials in a controlled *** this paper,inorganic mechanoluminescent(ML)materials composed of CaZnOS-ZnS-SrZnOS:Mn2+were used as a mechanotransducer since it features both piezoelectricity and *** utilization of ML materials in polymerization enables both mechanochemically controlled radical polymerization and the synthesis of ML polymer *** procedure features a mechanochemically controlled manner for the design and synthesis of diverse mechanoresponsive polymer composites.

关键词： chemically polymerization luminescent

Energetic particles’fluxes and dose in the Radiation Gene Box measured by space radiation detector onboard SJ-10 satellite

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Radiation Detection Technology and Methods 2018年第2期2卷 93-100页

作者： Xingzhu Cui Yaqing Liu wenxi peng Jinzhou Wang Min Gao Dongya Guo Xiaohua Liang Ruirui Fan Huanyu Wang Yunlong Zhang Zhongjian Ma Mingyang Yan Hong Xiao Yuanda Jiang Haiying Hang Institute of High Energy Physics CASBeijingChina College of Physics Jilin UniversityChangchunChina Changzhou Institute of Technology ChangzhouChina National Space Science Center CASBeijingChina Institute of Biophysics CASBeijingChina

Background To evaluate the hazard of space radiation posing to the tissues,it is important to obtain exact fluxes of different radiation *** Radiation Gene Box(RGB)onboard SJ-10 spacecraft was an instrument designed to investigate the effects of space environment on the mESCs and *** derive the dose received by the tissues inside the RGB,the Space Radiation Detector(SRD)was installed inside *** The SRD was designed to derive the fluxes of electron,proton,hellion and gamma rays around *** the type of the particles,the energies,the fluxes and the conversion coefficients are known,the dose received by the tissues could be *** The SRDwas designed as a △E-E solid-state *** measuring the energy deposited in the three subdetectors,the particles’type and their energies could be *** data of SRDwere divided into 15 bins by the types of particles and their energy *** The gamma ray flux was higher than any other particle flux inside the RGB,and the electron was the most intense charge particle,while the helium ion was the most harmful radiation to the cells inside the *** The dose rate inside the Radiation Gene Box was much higher than in the ground,but the integral dose of 12 days inside the RGB was about 2.13 *** seemed unlikely to have obvious biological effects on the tissues of mice and drosophila.

关键词： Particles’flux Dose Radiation detector Geomagnetic field

A k-mer-based pangenome approach for cataloging seed-storage-protein genes in wheat to facilitate genotype-to-phenotype prediction and improvement of end-use quality

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Molecular Plant 2024年第7期17卷 1038-1053页

作者： Zhaoheng Zhang Dan Liu Binyong Li wenxi Wang Jize Zhang Mingming Xin Zhaorong Hu Jie Liu Jinkun Du Huiru peng Chenyang Hao Xueyong Zhang Zhongfu Ni Qixin Sun Weilong Guo Yingyin Yao Frontiers Science Center for Molecular Design Breeding Key Laboratory of Crop Heterosis and Utilization(MOE)and Bejing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing100193China Key Laboratory of Crop Gene Resources and Breeding Institute of Crop ScienceChinese Academy of Agricultural SciencesBejingChina

Wheat is a staple foodfor more than 35%of the world's population,with wheatflourused to make hundreds of baked *** end-use quality is a major breeding target;however,improving it is especially time-consuming and ***,genes encoding seed-storage proteins(ssPs)form multigene families and are repetitive,with gaps commonplace in several genome *** overcome these barriers and efficiently identify superior wheat SSP alleles,we developed"PanSK"(Pan-SSP k-mer)for genotype-to-phenotype prediction based on an SsP-based pangenome *** uses 29-mer sequences that represent each ssP gene at the pangenomic level to reveal untapped diversity across landraces and modern ***-wide association studies with k-mers identified 23 Ssp genes associated with end-use quality that represent novel targets for *** evaluated the effect of rye secalin genes on end-use quality and found that removal of w-secalins from 1BL/1RS wheat translocation lines is associated with enhanced end-use ***,using machine-learning-based prediction inspired by PanSK,we predicted the quality phenotypes with high accuracy from genotypes *** study provides an effective approach for genome design based on ssP genes,enabling the breeding of wheat varieties with superior processing capabilities and improved end-use quality.

关键词： wheat seed-storage protein end-use quality k-mer pangenome genomic prediction

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中小学研学旅行活动设计探析

科技资讯 2020年第23期18卷 108-110页

作者：彭文喜湖南广播电视大学湖南长沙410004

研学旅行是中小学生素质教育活动的重要组成部分。该文通过认真研读研学旅行的相关政策文件和文献资料,分析了当前研学旅行活动开展存在的问题,从问题出发,提出研学旅行活动设计的五大原则,并从研学旅行活动目标、研学旅行活动主题、研... 详细信息

研学旅行是中小学生素质教育活动的重要组成部分。该文通过认真研读研学旅行的相关政策文件和文献资料,分析了当前研学旅行活动开展存在的问题,从问题出发,提出研学旅行活动设计的五大原则,并从研学旅行活动目标、研学旅行活动主题、研学旅行活动实施和研学旅行活动评价给出了具体的思路,对中小学研学旅行活动的可持续开发具有指导意义。

关键词：研学旅行活动设计设计原则评价体系

高职旅游管理专业人才培养模式改革与创新研究——以湖南网络工程职业学院旅游管理专业为例

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科教导刊 2019年第21期 45-46页

作者：彭文喜湖南广播电视大学

本文立足旅游行业新业态,科学定位人才培养目标,从优化课程结构、加强师资队伍建设等方面阐述了我校旅游管理专业人才培养模式改革与创新的内容,并从学生专业技能竞赛、学生就业前景及教师教学科研能力等方面取得的成绩做了总结,以期对... 详细信息

本文立足旅游行业新业态,科学定位人才培养目标,从优化课程结构、加强师资队伍建设等方面阐述了我校旅游管理专业人才培养模式改革与创新的内容,并从学生专业技能竞赛、学生就业前景及教师教学科研能力等方面取得的成绩做了总结,以期对全省乃至全国高职院校旅游管理专业人才培养提供帮助。

关键词：高职旅游管理专业人才培养模式改革创新

Result of proton beam energy calibration of GECAM satellite charged particle detector

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Radiation Detection Technology and Methods 2022年第1期6卷 26-34页

作者： Chaoyue Zhang Xiaohua Liang Yanbing Xu wenxi peng Jianjian He Dongya Guo Ke Gong Yaqing Liu Zhenghua An Dali Zhang Sheng Yang Xiaojing Liu Xiangyang Wen Rui Qiao Jinzhou Wang Min Gao Shaolin Xiong Fan Zhang Xinqiao Li Xingzhu Cui Chaoyang Li Jilong Tang Xiaohua Wang Dengkui Wang Zhipeng Wei Changchun University of Science and Technology Changchun 130022JilinChina Institute of High Energy Physics Chinese Academy of ScienceBeijing 100049China China West Normal University Nanchong 637000SichuanChina

Purpose A charged particle detector(CPD)is one of two main detectors on the GECAM *** was designed to detect charged *** and protons are space’s mainly charged ***,a research on the proton detection ability of a CPD and deriving the energy response to charged particles of the CPD in the two designed operating modes is *** The proton calibration tests of the CPD under diferent working modes were carried out at the Heavy Ion Research Facility in *** and conclusion Through testing and analysis,it was concluded that when CPD works in semi-component mode,it can detect the maximum energy,and when working in full-component mode,it can provide better energy resolution.

关键词： GECAM Charged particle detector Energy resolution E-C relation

我国省际旅游业可持续发展能力的空间分异研究

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地域研究与开发 2011年第2期30卷 113-118页

作者：彭文喜孙虎刘慧慧孔庆蕊陕西师范大学旅游与环境学院

在参考旅游可持续发展及其评价研究的基础上,从旅游业可持续发展的资源环境状况、社会经济支持能力、发展现状和发展潜力4个系统层出发,构建了由40个指标构成的旅游业可持续发展能力评价指标体系。基于SPSS15.0软件,运用因子分析方法计... 详细信息

在参考旅游可持续发展及其评价研究的基础上,从旅游业可持续发展的资源环境状况、社会经济支持能力、发展现状和发展潜力4个系统层出发,构建了由40个指标构成的旅游业可持续发展能力评价指标体系。基于SPSS15.0软件,运用因子分析方法计算我国31个省(市、区)的旅游业可持续发展各系统层及其总体层得分,依据得分情况划分为5个层次,分析了各系统层和总体层空间分布特征及形成空间差异的影响因素。依据相关分析,解释了各系统层对旅游业可持续发展的影响状况。

关键词：旅游业可持续发展空间分异