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川中古隆起南缘龙马溪组富有机质页岩沉积主控因素

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地质论评 2024年第S1期70卷 241-243页

作者：王滢寇一龙钟思存梁霄伍翊嘉罗芳袁翠平刘若林中国石油集团川庆钻探工程有限公司地质勘探开发研究院成都610051

四川盆地处于扬子准地台上偏西北一侧,是扬子准地台的一个次级构造单元,在印支期已具备盆地的雏形,后经喜马拉雅运动全面褶皱形成现今的构造面貌。大的构造分区包括川东南拗褶区、川中古隆起区和川西北坳陷区。研究区块主要位于川中古... 详细信息

四川盆地处于扬子准地台上偏西北一侧,是扬子准地台的一个次级构造单元,在印支期已具备盆地的雏形,后经喜马拉雅运动全面褶皱形成现今的构造面貌。大的构造分区包括川东南拗褶区、川中古隆起区和川西北坳陷区。研究区块主要位于川中古隆起南缘斜坡低陡褶带,在周边黔中隆起与川中古隆起的阻隔下,处于相对较低的位置,龙马溪组鲁丹期处于深水缺氧的外陆棚沉积环境中.

关键词：川中古隆起沉积微相相变古地貌沉积主控因素

Synergistic effect of size-dependent PtZn nanoparticles and zinc single-atom sites for electrochemical ozone production in neutral media

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Journal of Energy Chemistry 2020年第12期29卷 312-322页

作者： Bowen yuan Zihao Yao Chenlong Qiu Haiyang Zheng yilong Yan Qiaoqiao Zhang Xiang Sun Yu Gu Xing Zhong Jianguo Wang Institute of Industrial Catalysis State Key Laboratory Breeding Base of Green-Chemical Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of TechnologyHangzhou 310032ZhejiangChina

Electrochemical ozone production(EOP) via water electrolysis represents an attractive method for the generation of high-purity O3. Herein, the X-PtZn/Zn-N-C electrocatalysts show a strong structural sensitive behavior depends on the size of the PtZn nanoparticles and their EOP activity exhibits a volcano-type dependence for the O3 performance in neutral media. The 7.7-PtZn/Zn-N-C exhibits EOP current efficiency of 4.2%, and shows the prominent performance in the production of gaseous O3 with a value of 1647 ppb at 30 min, which is almost 4-fold compared to 2.2-Pt Zn/Zn-N-C. Based on the experiments and theoretical calculations, the performance of the EOP process was determined by the nanoparticle size-effect and the synergistic effect between the PtZn nanoparticles and atomically dispersed Zn-N-C. Furthermore, the fivemembered cyclic structure of O3 can be stabilized between the PtZn nanoparticle and the Zn-N-C support,indicating that O3 is produced at the interface.

关键词： Electrochemical ozone production PtZn Single-atom catalysts Size effect Synergistic effect

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基于气相色谱方法的植物油脂肪酸分析探究

云南化工 2019年第5期46卷 113-115页

作者：刘发强夏培蓓李玉梅袁一龙马君佩吴咏梅新疆工程学院化学与环境工程学院

从材料、试剂、仪器、方法等方面入手,介绍了植物油脂肪酸分析实验用到的材料与方法;其次,从定性和定量分析、色谱柱的选择、甲酯化体系的选择、反应温度影响、精密度和稳定性实验、实际样品测定及植物油脂肪酸组成特点、聚类分析七个... 详细信息

从材料、试剂、仪器、方法等方面入手,介绍了植物油脂肪酸分析实验用到的材料与方法;其次,从定性和定量分析、色谱柱的选择、甲酯化体系的选择、反应温度影响、精密度和稳定性实验、实际样品测定及植物油脂肪酸组成特点、聚类分析七个方面入手,研究了植物油脂肪酸分析实验的结果与分析;最后,总结了植物油脂肪酸分析实验的结论。希望通过这次研究,为实验人员加深对基于气相色谱方法的植物油脂肪酸分析有更深刻的认识和了解。

关键词：气相色谱方法植物油脂肪酸分析探究.

The greenhouse gas budget for China's terrestrial ecosystems

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National Science Review 2023年第12期10卷 55-57页

作者： Xuhui Wang yuanyi Gao Kai Wang Yuxing Sang yilong Wang Yuzhong Zhang Songbai Hong Yao Zhang Wenping yuan Institute of Carbon Neutrality Sino-French Institute for Earth System Science College of Urban and Environmental Sciences Peking University State Key Laboratory of Tibetan Plateau Earth System Resources and Environment(TPESRE) Institute of Tibetan Plateau ResearchChinese Academy of Sciences Key Laboratory of Coastal Environment and Resources of Zhejiang Province School of EngineeringWestlake University Institute of Advanced Technology Westlake Institute for Advanced Study School of Atmospheric Sciences Sun Yat-sen University

The increased atmospheric concentrations of greenhouse gases (GHGs,including CO2, CH4 and N2O) are unequivocally the major driving forces of climate warming [1]. These GHGs originate not only from the use of fossil fuels, but also from disturbances to and management of terrestrial *** evidence suggests that terrestrial ecosystems,

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金属矿急倾斜矿体开采地表移动范围理论分析初探

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煤炭学报 2024年第S1期49卷 1-11页

作者：马凯杨天鸿赵永刘洪磊董鑫高源刘一龙李金多何荣兴侯俊旭东北大学资源与土木工程学院东北大学深部金属矿山安全开采教育部重点实验室

为揭示金属矿急倾斜矿体开采地表移动规律，有效预测地表移动范围，以弓长岭铁矿急倾斜矿体开采上盘地表移动为例，考虑地形、废石回填、采深3个因素，建立了用于计算地表主应力分布与易开裂范围的力学模型。基于力学模型，将移动角与... 详细信息

为揭示金属矿急倾斜矿体开采地表移动规律，有效预测地表移动范围，以弓长岭铁矿急倾斜矿体开采上盘地表移动为例，考虑地形、废石回填、采深3个因素，建立了用于计算地表主应力分布与易开裂范围的力学模型。基于力学模型，将移动角与地表易开裂范围建立了力学联系，并对移动角进行了补充定义：由最深部开采层边缘向地表作直线，位移为0且使地表开裂范围最大的直线即为移动边界线，移动边界线与水平方向的夹角即为移动角。提出了借助力学模型计算移动角的试算法：预设不同的移动角，由力学模型计算得到的地表最大易开裂范围所对应的预设移动角即为真实移动角。在得到真实移动角后，由力学模型可确定地表易开裂范围与深度。同时，借助极限平衡原理将地表易开裂范围与块体滑移建立了力学联系，提出了地表潜在陷落范围的计算方法：对地表易开裂区内不同开裂点对应的潜在滑移块体列极限平衡方程，依次判别块体是否会发生剪切滑移，可确定地表潜在陷落范围。经计算，弓长岭铁矿下盘含铁带地下开采对上盘地表的移动角为60°，上盘地表具有初次滑移风险的位置距离初采位置的水平距离为130 m，潜在滑移角为55°。根据弓长岭铁矿露天与地下联合开采的现场经验，利用废石及时对地下采空区进行密实回填，并通过优化联合开采时空顺序与开采强度可有效控制地表移动，实现露天与地下安全联合开采。

关键词：金属矿急倾斜矿体地表移动移动角力学模型极限平衡

Development of robust perovskite single crystal radiation detectors with high spectral resolution through synergetic trap deactivation and self-healing

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InfoMat 2023年第9期5卷 26-37页

作者： Lixiang Wang yilong Song Liqi Li Liting Tao Minxing Yan Weihui Bi Xueying Yang yuan Sun Qingfeng Dong Deren Yang Yanjun Fang State Key Laboratory of Silicon Materials and School of Materials Science and Engineering Zhejiang UniversityHangzhouthe People's Republic of China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchunthe People's Republic of China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuanthe People's Republic of China

Organic-inorganic halide perovskite single crystals(SCs)are promising materials for detecting ionizing radiation owing to their outstanding photoelectric conversion capability and inexpensive solution ***,the accuracy and stability of the detectors have been limited due to the charge traps and defects in SCs,especially when operated under high-precision photon-counting mode for energy spectrum ***,we proposed a trap freezing deactivation route,which obviously suppressed dark current and noise by up to 97%and 92%,***,the bulk ion migration effect was essential for the ability to instantly self-heal defects induced by radiation damage at temperatures down to30***,the detector exhibits a record high energy resolution of 7.5%at 59.5 keV for 241Amγ-ray source,which is the best solution-processed semiconductor radiation detectors at the same energy *** addition,the detector maintains over 90%of its initial performance after 9 months of storage when tested in the *** results will represent a revision of the paradigm that high-spectral-resolution and robust radiation detectors can only be realized with high temperature grown inorganic semiconductor single crystals.

关键词： energy resolution perovskite single crystal photon counting radiation detector self-healing stability

贮藏温度对火棘鲜果采后生理及功效活性成分的影响

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食品研究与开发 2024年第8期45卷 91-96,103页

作者：陈一龙商桑曾顺德曾小峰刁源尹旭敏高伦江重庆市农业科学院农产品加工研究所重庆401329

以重庆彭水野生火棘鲜果为试材,研究贮藏温度对火棘功效活性成分原花青素、黄酮、总酚和VC含量的影响,分析相关抗性酶超氧化物歧化酶(superoxide dismutase,SOD)、苯丙氨酸解氨酶(shenylalanine ammonia lyase,PAL)活性和次生代谢产物... 详细信息

以重庆彭水野生火棘鲜果为试材,研究贮藏温度对火棘功效活性成分原花青素、黄酮、总酚和VC含量的影响,分析相关抗性酶超氧化物歧化酶(superoxide dismutase,SOD)、苯丙氨酸解氨酶(shenylalanine ammonia lyase,PAL)活性和次生代谢产物丙二醛(malondialdehyde,MDA)含量及腐损率变化趋势。结果表明:-5、-3、-1、1、3、5℃贮藏60 d原花青素保持率分别是初始含量的72.97%、65.43%、48.12%、29.76%、21.33%和19.22%;黄酮保持率分别为77.25%、76.27%、72.01%、60.39%、56.96%和35.19%;总酚保持率分别为83.66%、82.61%、62.80%、55.69%、48.51%和43.11%;VC保持率分别为87.17%、86.43%、75.46%、54.83%、36.06%和24.35%;SOD活性保持率分别为81.56%、79.78%、66.32%、27.86%、15.83%和11.25%;PAL活性保持率分别为57.43%、50.05%、42.00%、19.69%、15.62%和14.12%;MDA累积程度与初始含量相比,分别为2.19、2.59、4.51、6.52、7.52倍和8.54倍;腐损率与5℃贮藏60 d相比,分别低88.10%、87.94%、81.09%、54.25%和12.53%。-5、-3℃贮藏与5、3、1、-1℃贮藏相比均可有效保持原有功效成分、降低腐损率、减少MDA累积程度、保持较高SOD和PAL活性,但-5℃和-3℃贮藏差异不显著,-3℃可作为优选贮藏温度。

关键词：贮藏温度火棘鲜果采后生理功效活性影响

Control of rice ratooning ability by a nucleoredoxin that inhibits histidine kinase dimerization to attenuate cytokinin signaling in axillary buds

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Molecular Plant 2023年第12期16卷 1911-1926页

作者： yilong Yao Denghao Xiang Nai Wu Yao Wang Yu Chen Yang yuan Ying Ye Dan Hu Chang Zheng Yu Yan Qingya Lv Xiaokai Li Guoxing Chen Honghong Hu Haiyan Xiong Shaobing Peng Lizhong Xiong National Key Laboratory of Crop Genetic Improvement Hubei Hongshan Laboratoryand National Center of Plant Gene Research(Wuhan)Huazhong Agricultural UniversityWuhan430070China

Rice ratooning,the fast outgrowth of dormant buds on stubble,is an important cropping practice in rice ***,the low ratooning ability(RA)of most rice varieties restricts the application of this cost-efficient system,and the genetic basis of RA remains *** this study,we dissected the genetic architecture of RA by a genome-wide association study in a natural rice *** ratooning ability 3(RRA3),encoding a hitherto not characterized nucleoredoxin involved in reduction of disulfide bonds,was identified as the causal gene of a major locus controlling *** of RRA3 in rice significantly accelerated leaf senescence and reduced RA,whereas knockout of RRA3 significantly delayed leaf senescence and increased RA and ratoon *** demonstrated that RRA3 interacts with Oryza sativa histidine kinase 4(OHK4),a cytokinin receptor,and inhibits the dimerization of OHK4 through disulfide bond *** inhibition ultimately led to decreased cytokinin signaling and reduced *** addition,variations in the RRA3 promoter were identified to be associated with *** of a superior haplotype with weak expression of RRA3 into the elite rice variety Guichao 2 significantly increased RA and ratoon yield by 23.8%.Collectively,this study not only uncovers an undocumented regulatory mechanism of cytokinin signaling through de-dimerization of a histidine kinase receptor-but also provides an eximious gene with promising value for ratoon rice breeding.

关键词： ratoon rice ratooning ability redox histidine kinase cytokinin signaling

A chromosome-scale genome assembly of Dasypyrum villosum provides insights into its application as a broad-spectrum disease resistance resource for wheat improvement

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Molecular Plant 2023年第2期16卷 432-451页

作者： Xu Zhang Haiyan Wang Haojie Sun Yingbo Li yilong Feng Chengzhi Jiao Mengli Li Xinying Song Tong Wang Zongkuan Wang Chunxia yuan Li Sun Ruju Lu Wenli Zhang Jin Xiao Xiue Wang State Key Laboratory of Crop Genetics and Germplasm Enhancement Cytogenetics InstituteNanjing Agricultural University/JCIC-MCPNanjingJiangsu 210095China Biotech Research Institute Shanghai Academy of Agricultural SciencesShanghai 201106China

Dasypyrum villosum is one of the most valuable gene resources in wheat improvement,especially for disease *** mining of favorable genes from *** is frustrated by the lack of a whole genome *** this study,we generated a doubled-haploid line,91C43^(DH),using microspore culture and obtained a 4.05-GB high-quality,chromosome-scale genome assembly for *** assembly contains39727 high-confidence genes,and 85.31% of the sequences are *** reciprocal translocation events were detected,and 7VS-4VL is a unique translocation in *** prolamin seed storage protein-coding genes were found to be duplicated;in particular,the genes encoding low-molecular-weight glutenin at the Glu-V3 locus were significantly *** sequencing(RNA-seq)analysis indicated that,after Blumeria graminearum *** tritici(Bgt)inoculation,there were more upregulated genes involved in the pattern-triggered immunity and effector-triggered immunity defense pathways in *** than in Triticum *** hypersensitive sequencing(MH-seq)identified two Bgt-inducible MH sites(MHSs),one in the promoter and one in the 3'terminal region of the powdery mildew resistance(Pm)gene *** site had two subpeaks and they were termed MHS1(MHS1.1/1.2)and MHS2(MHS2.1/2.2).Bgt-inducible MHS2.2 was uniquely present in ***,and MHS1.1 was more inducible in *** than in wheat,suggesting that MHSs may be critical for regulation of NLR1-V expression and plant *** summary,this study provides a valuable genome resource for functional genomics studies and *** introgression *** identified regulatory mechanisms may also be exploited to develop new strategies for enhancing Pm resistance by optimizing gene expression in wheat.

关键词： D.villosum genome crop wild relative genome evolution disease resistance RNA-seq MNase hy-persensitivityassay