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Influence of Mass Ratio of Resin and Stabilizer on Mechanical Properties of Mo Fiber-reinforced Granite Polymer Composite

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Journal of Wuhan University of Technology(Materials Science) 2024年第4期39卷 912-920页

作者：张超任秀华 BA Dongzhe ZHANG Jianhua li Jianyong GUO Mengnan GAO Yinghao WANG Guixin li jiayang School of Mechanical and Electronic Engineering Shandong Jianzhu UniversityJinan 250101China Key Laboratory of High Efficiency and Clean Mechanical Manufacture Ministry of Education of ChinaSchool of Mechanical EngineeringShandong UniversityJinan 250061China

Because inferior mechanical strength of granite polymer composite(GPC)has become the main drawback limiting its application and popularization,Mo fibers were added into(GPC)to improve its mechanical *** properties of matrix materials with different mass ratio of resin and stabilizer(MRRS)were investigated *** influences of MRRS on interface bonding strength of Mo fiber-matrix,wettability and mechanical strength of GPC were discussed,respectively,and the theoretical calculation result of MRRS k was obtained,with the optimal value of k=*** k=4,tensile strength,tensile strain and fracture stress of the cured resin achieve the maximum *** for k=7,the corresponding values reach the *** the increase of MRRS k,surface free energy of the cured resin first increases and then decreases,while contact angles between Mo sample and matrix have displayed the opposite *** of resin to Mo fiber is the best at k=*** load of Mo fiber and interface bonding strength appear the maximum at k=4,followed by k=5,k=3 the third,and k=7 the *** k=4,mechanical properties of Mo fiber-reinforced GPC are optimal,which is consistent with the result of theoretical *** study is of great significance to get better component formulas of Mo fiber reinforced GPC and to improve its application in machine tools.

关键词： polymer composite fiber mechanical strength interface bonding

Non-transcriptional regulatory activity of SMAX1 and SMXL2 mediates karrikin-regulated seedling response to red light in Arabidopsis

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Molecular Plant 2024年第7期17卷 1054-1072页

作者： Wenwen Chang Qiao Qiao Qingtian li Xin li Yanyan li Xiahe Huang Yingchun Wang jiayang li Bing Wang Lei Wang Key Laboratory of Seed Innovation Center for Agricultural Resources ResearchInstitute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuangHebei050021China Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyThe Innovative Academy for Seed DesignChinese Academy of SciencesBeijing100101China University of Chinese Academy of Sciences Beijing 100049China Yazhouwan National Laboratory SanyaHainan 572024China

Karrikins and strigolactones govern plant development and environmental responses through closely related signaling *** transcriptional repressor proteins SUPPRESSOR OF MAX21(SMAX1),SMAX1-like2(SMXL2),and D53-like SMXLs mediate karrikin and strigolactone signaling by directly binding downstream genes or byinhibiting the activities of transcription *** this study,we characterized the non-transcriptional regulatory activities of SMXL proteins in *** discovered that SMAX1 and SMXL2 with mutations in their ethylene-responsefactor-associated amphiphilic repression(EAR)motif had undetectable or weak transcriptional repression activities but still partially rescued the hypocotyl elongation defects and fully reversed the cotyledon epinasty defects of the smax1 smxl2 ***1 and SMXL2 directly interact with PHYTOCHROME INTERACTION FACTOR4(PIF4)and PIF5 to enhance their protein stability by interacting with phytochrome B(phyB)and suppressing the association of phyB with PIF4 and *** karrikin-responsive genes were then identified by treatment with GR24ent-ssa,GR24 analog showing karrikin ***,INDOLE-3-ACETIC ACID INDUCIBLE 29(IAA29)expression was repressed by GR24^(ent-5D)streatment in a PIF4-and PIF5-dependent and EARindependent manner,whereas KARRIKIN UPREGULATED F-BOX 1(KUF1)expression was induced in a PIF4-and PIF5-independent and EAR-dependent ***,the non-transcriptional regulatory activity of SMAX1,which is independent of the EAR motif,had a global effect on gene *** together,these results indicate that non-transcriptional regulatory activities of SMAX1 and SMXL2 mediate karrikin-regulated seedling response to red light.

关键词： karrikin signaling SMAX1 and SMXL2 non-transcriptional repression activity PIF4 and PIF5 gene expression red light

Insights on advanced g‐C_(3)N_(4)in energy storage:Applications,challenges,and future

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Carbon Energy 2024年第4期6卷 22-78页

作者： Xiaojie Yang Jian Peng lingfei Zhao Hang Zhang jiayang li Peng Yu Yameng Fan Jiazhao Wang Huakun liu Shixue Dou School of Nuclear Technology and Chemistry&Biology Hubei Key Laboratory of Radiation Chemistry and Functional MaterialsHubei University of Science and TechnologyXianningChina Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNorth WollongongNew South WalesAustralia State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanChina Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghaiChina

Graphitic carbon nitride(g‐C_(3)N_(4))is a highly recognized two‐dimensional semiconductor material known for its exceptional chemical and physical stability,environmental friendliness,and pollution‐free *** remarkable properties have sparked extensive research in the field of energy *** review paper presents the latest advances in the utilization of g‐C_(3)N_(4)in various energy storage technologies,including lithium‐ion batteries,lithium‐sulfur batteries,sodium‐ion batteries,potassium‐ion batteries,and *** of the key strengths of g‐C_(3)N_(4)lies in its simple preparation process along with the ease of optimizing its material *** possesses abundant amino and Lewis basic groups,as well as a high density of nitrogen,enabling efficient charge transfer and electrolyte solution ***,the graphite‐like layered structure and the presence of largeπbonds in g‐C_(3)N_(4)contribute to its versatility in preparing multifunctional materials with different dimensions,element and group doping,and conjugated *** characteristics open up possibilities for expanding its application in energy storage *** article comprehensively reviews the research progress on g‐C_(3)N_(4)in energy storage and highlights its potential for future applications in this *** exploring the advantages and unique features of g‐C_(3)N_(4),this paper provides valuable insights into harnessing the full potential of this material for energy storage applications.

关键词： g‐C_(3)N_(4) lithium‐ion batteries lithium‐sulfur batteries potassium‐ion batteries sodium‐ion batteries supercapacitors

Genome editing of 30 UTR-embedded inhibitory region enables generation of gene knock-up alleles in plants

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Plant Communications 2024年第3期5卷 1-4页

作者： Hongwen Wang Dahan Zhang Mingjiang Chen Xiangbing Meng Shiwei Bai Peiyong Xin Jijun Yan Jinfang Chu jiayang li Hong Yu State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Yazhouwan National Laboratory Sanya 572024China

Dear Editor,Genome editing has revolutionized speed breeding by enabling researchers to alter the genome directly as desired(Gao,2021).The most widely used CRISPR–Cas9 technology has mainly been applied to engineer null mutations in coding sequences,with the goal of creating loss-of-function ***,upstream regulatory elements of the promoter region and 50 upstream open reading frame(uORF)have been engineered to generate gain-of-function alleles,producing versatile cis-regulatory effects,usually through changes in gene expression levels(Rodrıguez-Leal et al.,2017;Zhang et al.,2018;Song et al.,2022).

关键词： upstream breeding versatile

Nonholonomic Theory of Principal-direction Orthonormal Basis for a Layer of Surfaces

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复旦学报（自然科学版） 2024年第4期63卷 415-437,442页

作者： li jiayang XIE Xilin Department of Aeronautics and Astronautics Fudan UniversityShanghai 200433China

In order to carry out tensor analysis in a neighborhood of a reference surface,the principal-direction orthogonal basis accompanying with Lame s coefficients or general curvilinear coordinate systems are widely used.A novel kind of field theory termed as the nonholonomic theory of the Principal-Direction Orthonormal Basis(PDOB)is presented systematically in the present paper,in which the formal Christoffel symbols are related directly to the principal and geodesic curvatures with respect to the principal directions of the ***,a systematic and simple way to determine the curvatures of the surface are presented with some *** provides a way to recognize qualitatively the bending property of a surface.

关键词： nonholonomic theory principal-direction orthonormal basis principal curvature geodesic curvature

LAZY4 acts additively with the starch-statolithdependent gravity-sensing pathway to regulate shoot gravitropism and tiller angle in rice

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Plant Communications 2024年第10期5卷 154-165页

作者： Wenguang Wang linzhou Huang Yuqi Song Songtao Gui Jiajia Cao Han Zhang Mengchen Du Jiaze Chen Zihao Wang Jie Zhou Xiangbing Meng Dali Zeng jiayang li Yonghong Wang National Key Laboratory of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai’an 271018China Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100039China Yazhouwan National Laboratory Sanya 572024China College of Advanced Agricultural Sciences Zhejiang A&F UniversityHangzhou 311300China

Rice tiller angle is a key agronomic trait that has significant effects on the establishment of a high-yield rice ***,the molecular mechanism underlying the control of rice tiller angle remains to be clar***,we characterized the novel tiller-angle gene LAZY4(LA4)in rice through map-based ***4 encodes a C3H2C3-type RING zinc-finger E3 ligase localized in the nucleus,and an in vitro ubiquitination assay revealed that the conserved RING finger domain is essential for its E3 ligase *** found that expression of LA4 can be induced by gravistimulation and that loss of LA4 function leads to defective shoot gravitropism caused by impaired asymmetric auxin redistribution upon *** analysis demonstrated that LA4 acts in a distinct pathway from the starch biosynthesis regulators LA2 and LA3,which function in the starch-statolith-dependent *** genetic analysis showed that LA4 regulates shoot gravitropism and tiller angle by acting upstream of LA1 to mediate lateral auxin transport upon *** studies reveal that LA4 regulates shoot gravitropism and tiller angle upstream of LA1 through a novel pathway independent of the LA2-LA3-mediated gravity-sensing mechanism,providing new insights into the rice tiller-angle regulatory network.

关键词： auxin shoot gravitropism tiller angle LAZY4 rice

D53 represses rice blast resistance by directly targeting phenylalanine ammonia lyases

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Journal of Integrative Plant Biology 2024年第9期66卷 1827-1830页

作者： Haitao Ye Qingqing Hou Haitao Lv Hui Shi Duo Wang Yujie Chen Tangshuai Xu Mei Wang Min He Junjie Yin Xiang Lu Yongyan Tang Xiaobo Zhu lijuan Zou Xuewei Chen jiayang li Bing Wang Jing Wang State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130China Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Yazhouwan National Laboratory Sanya 572024China

Phytohormones play important roles in orchestrating plantimmune responses to pathogen ***(SLs),a group of carotenoid-derived phytohormones,modulate diverse biological processes in plants,including shoot branching,plant height,root architecture,leaf senescence,seed germination of parasitic plants,and symbiosis of arbuscular mycorrhizal fungi(Burger and Chory,2020).Recently,increasing evidence has indicated potential roles for SLs in regulating responses against biotic stresses,including defense responses against certain pathogenic fungi and bacteria in roots and leaves(Yi et al.,2023).

关键词： ammonia resistance branching

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全国幼儿园及中小学校性教育开展状况

中国学校卫生 2024年第1期45卷 46-50页

作者：刘文利李佳洋李依洋北京师范大学中国基础教育质量监测协同创新中心北京100875 北京师范大学心理学部认知神经科学与学习国家重点实验室北京师范大学教育学部

目的了解学校性教育现状、教师和学生对性教育的评价和态度等,为促进学校性教育的开展提供依据。方法于2021年9—10月使用网络问卷收集全国范围内的基础教育阶段学生性知识获取情况、对性教育的态度以及学校性教育经历,获有效问卷2140份... 详细信息

目的了解学校性教育现状、教师和学生对性教育的评价和态度等,为促进学校性教育的开展提供依据。方法于2021年9—10月使用网络问卷收集全国范围内的基础教育阶段学生性知识获取情况、对性教育的态度以及学校性教育经历,获有效问卷2140份;对幼儿园及中小学教师调查其对性教育的态度、性教育实践经验与技能水平、开展性教育教学面临的困难等,获有效问卷2146份。对数据进行描述统计,并采用Logistic回归分析探究教师讲授性教育课程意愿的影响因素。结果52.06%的学生未接受过学校性教育,47.53%的教师所任教的学校未开展性教育。学校性教育内容主要集中在生殖健康和身体发育领域。48.93%的教师认为学校性教育开展情况一般,高中生认为学校性教育“很不好”(32.87%)或“不太好”(21.23%)的比例最高。在开展性教育的学校中,承担性教育工作的教师55.51%为心理健康教师。71.02%的教师认为开展性教育的最佳方式是独立设课。小学生和高中生认为“非常需要”和“有点需要”性教育的占比均超过50%,51.77%的教师认为性教育“非常急迫”。对性教育效果的认可程度、性问题解答信心、外界对于性教育的支持程度增加和接受性教育培训会增加教师讲授性教育(课程)的可能(OR值分别为1.02,1.95,1.03,3.53,P值均<0.05)。结论当前学校性教育开展情况不容乐观,与学生对性教育需求之间的差距大,教师开展性教育能力不足。学校应重视性教育,加强教师性教育培训,满足学生对性教育需求。

关键词：性教育态度回归分析学生

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艾司奥美拉唑治疗消化性溃疡出血的临床效果

中华灾害救援医学 2024年第5期11卷 567-569页

作者：李佳杨永春县蓬壶中心卫生院消化内科福建泉州362600

目的研究艾司奥美拉唑治疗消化性溃疡出血的疗效。方法回顾性选取永春县蓬壶中心卫生院消化内科2023年1月至2024年1月收治的60例消化性溃疡出血患者,按照治疗方法不同分为对照组与观察组,每组各30例。对照组采取常规补液、止血等治疗,... 详细信息

目的研究艾司奥美拉唑治疗消化性溃疡出血的疗效。方法回顾性选取永春县蓬壶中心卫生院消化内科2023年1月至2024年1月收治的60例消化性溃疡出血患者,按照治疗方法不同分为对照组与观察组,每组各30例。对照组采取常规补液、止血等治疗,观察组在常规治疗基础上加用艾司奥美拉唑治疗,比较两组临床治疗效果。结果观察组治疗效果、临床症状恢复情况、血常规、炎症因子均显著优于对照组(P0.05)。结论在常规治疗基础上加用艾司奥美拉唑治疗消化性溃疡出血临床效果佳。

关键词：消化性溃疡出血临床医学