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Journal of Rare Earths 2024年第8期42卷 1421-1428,I0001页

作者： Yunxiao Ma chao linghu Ming Yang Hui Yu Xiangting Dong Long Xia School of Chemistry and Environmental Engineering Changchun University of Science and TechnologyChangchun130022China School of Materials Science and Engineering Harbin Institute of Technology(Weihai)Weihai264209China

Light emitting diode(LED) is the fourth generation lighting source,but it has some shortcomings such as complex chip packaging process and the unbalanced light color of phosphor in long-time *** this study,a kind of Eu-terephthalic acid/Tb-sulfosalicylate/ZrO_(2)/ZnZrO_(3)(Eu-PTA/Tb-SSA/ZrO_(2)/ZnZrO_(3))phosphor with warm white light emission properties was prepared,and the warm white light LED(wWLEDs) was successfully prepared by encapsulating Eu-PTA/Tb-SSA/ZrO_(2)/ZnZrO_(3) phosphors together with 270 nm *** ZrO_(2)/ZnZrO_(3),Tb-SSA/ZrO_(2)/ZnZrO_(3) and Eu-PTA/ZrO_(2)/ZnZrO_(3) samples show blue emission,green emission and red emission under deep ultraviolet(UV,270 nm) excitation,*** Tb-SSA and Eu-PTA are co-doped into ZrO_(2)/ZnZrO_(3) matrix with blue emission to achieve the warm white light emission,and the light color can be adjusted by controlling the doping amount of Eu^(3+)-and Tb^(3+).Through the excitation method of single-component phosphor by the single chip,the complex chip packaging process of w-LED can be *** doping rare earth organic complexes into porous ZrO_(2)/ZnZrO_(3) matrix,the problems of the light color unbalanced of phosphor and the low luminescence intensity of rare earth doped metal oxides composites can be solved.

关键词： Eu-PTA/Tb-SSA/ZrO_(2)/ZnZrO_(3) Luminescence material Light color adjustable phosphor Warm white emission W-WLEDs Rare earths

Genomics,transcriptomics,and peptidomics of the greater wax moth Galleria mellonella neuropeptides and their expression in response to lead stress

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Insect Science 2024年第3期31卷 773-791页

作者： Li-Lin Luo Yang Lin Jun-Hong linghu Wei Gong Yuan-Hong Luo Man Liu Dao-chao Jin Guy Smagghe Tong-Xian Liu Shun-Hua Gui Tian-Ci Yi Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region Institute of EntomologyGuizhou UniversityGuiyangGuizhouChina Guizhou Institute of Biology Guizhou Academy of SciencesGuiyangChina Institute of Plant Health and Medicine Guizhou UniversityGuiyangChina

Neuropeptides are crucial in regulation of a rich variety of developmental,physiological,and behavioral functions throughout the life cycle of *** an integrated approach of multiomics,we identified neuropeptide precursors in the greater wax moth Galleria mellonella,which is a harmful pest of honeybee hives with a worldwide ***,a total of 63 and 67 neuropeptide precursors were predicted and annotated in the *** genome and transcriptome,in which 40 neuropeptide precursors were confirmed in the *** ***,we identified 12 neuropeptide precursor genes present in *** but absent in honeybees,which may be potential novel pesticide target *** hives were contaminated with heavy metals such as lead,enabling its bioaccumulation in *** bodies through the food chain,we performed transcriptome sequencing to analyze the effects of Pb stress on the mRNA expression level of *** neuropeptide *** treatment by Pb,the expression of neuropeptide F1 was found to be significantly downregulated,implying that this neuropeptide might be associated with responding to the heavy metal stress in *** study comprehensively identified neuropeptide precursors in ***,and discussed the effects of heavy metals on insect neuropeptides,with the example of *** results are valuable for future elucidation of how neuropeptides regulate physiological functions in *** and contribute to our understanding of the insect's environmental plasticity and identify potential new biomarkers to assess heavy metal toxicity in insects.

关键词： Galleria mellonella genomics heavy metal stress neuropeptide peptidomics transcriptomics

一组同分异构体含能化合物热稳定性差异的机理研究

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含能材料 2024年第1期32卷 38-48页

作者：王榕令狐遥遥张朝阳钟凯中国工程物理研究院化工材料研究所四川绵阳621999 中北大学材料科学与工程学院山西太原030051

同分异构现象在含能化合物中普遍存在,同分异构体在能量和安全性能上可存在差异,研究其机制有助于深化含能化合物结构‐性能关系。本研究基于电荷自洽的密度泛函紧束缚方法探究了2,6‐二氨基‐3,5‐二硝基‐1‐氧化吡嗪(LLM‐105)、3,5... 详细信息

同分异构现象在含能化合物中普遍存在,同分异构体在能量和安全性能上可存在差异,研究其机制有助于深化含能化合物结构‐性能关系。本研究基于电荷自洽的密度泛函紧束缚方法探究了2,6‐二氨基‐3,5‐二硝基‐1‐氧化吡嗪(LLM‐105)、3,5‐二氨基‐4,6‐二硝基‐1‐氧化哒嗪和1,4‐二硝基呋咱并[3,4‐b]哌嗪(DNFP)3种同分异构体含能化合物在程序升温和恒温加热条件下的热分解机理。结果表明,LLM‐105晶体中存在较强的氢键网络,在分解初期能够发生占比达68.75%的分子间氢转移反应,对其高热稳定性起到了重要作用;3,5‐二氨基‐4,6‐二硝基‐1‐氧化哒嗪的骨架结构在加热下容易通过N─N键断裂发生开环,其热稳定性比LLM‐105更低;DNFP发生硝基断裂的键解离能为172.3 kJ·mol^(-1),显著低于其它两种同分异构体,同时其并环骨架也容易通过C─C键和N─O键断裂发生开环,其热稳定性最低。可见,分子最弱键的解离能、环骨架结构的稳定性、晶体的氢键网络都是决定含能化合物热稳定性的重要结构因素。

关键词：含能化合物同分异构体热分解稳定性

Laser-driven programmable non-contact transfer printing of objects onto arbitrary receivers via an active elastomeric microstructured stamp

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National Science Review 2020年第2期7卷 296-304页

作者： Hongyu Luo Chengjun Wang Changhong linghu Kaixin Yu chao Wang Jizhou Song Department of Engineering Mechanics Soft Matter Research Center and Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Zhejiang University

Transfer printing, as an important assembly technique, has attracted much attention due to its valuable merits to develop novel forms of electronics such as stretchable inorganic electronics requiring the heterogeneous integration of inorganic materials with soft elastomers. Here, we report on a laser-driven programmable non-contact transfer printing technique via a simple yet robust design of active elastomeric microstructured stamp that features cavities filled with air and embedded under the contacting surface, a micro-patterned surface membrane that encapsulates the air cavities and a metal layer on the inner-cavity surfaces serving as the laser-absorbing layer. The micro-patterned surface membrane can be inflated dynamically to control the interfacial adhesion, which can be switched from strong state to weak state by more than three orders of magnitude by local laser heating of the air in the cavity with a temperature increase below 100℃. Theoretical and experimental studies reveal the fundamental aspects of the design and fabrication of the active elastomeric microstructured stamp and the operation of non-contact transfer printing. Demonstrations in the programmable transfer printing of micro-scale silicon platelets and micro-scale LED chips onto various challenging receivers illustrate the extraordinary capabilities for deterministic assembly that are difficult to address by existing printing schemes, thereby creating engineering opportunities in areas requiring the heterogeneous integration of diverse materials such as curvilinear electronics and Micro LED displays.

关键词： tunable adhesion transfer printing heterogeneous integration laser-driven

Influence of deep magma-induced thermal effects on the regional gas outburst risk of coal seams

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International Journal of Coal Science & Technology 2021年第6期8卷 1411-1422页

作者： Jianshe linghu Wei Zhao Jianbin Zhou Zhiming Yan Kai Wang chao Xu Chuanwen Sun Huayang New Material Technology Group Co. LTD.Yangquan Shanxi 045000China Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources China University of Mining and Technology(Beijing)Beijing 100083China State Key Laboratory of Coal and Coalbed Methane Co-Mining Jincheng Shanxi 048012China Risk Management and Safety Engineering School China University of Mining and Technology(Beijing)Beijing 100083China

The thermal effect caused by deep magma intrusion can not only accelerate the metamorphism of coal body,but also bring additional thermal field that changes the mechanical environment of coal seams,thereby affecting the permeability of coal *** from shallow coal resources,deep coal resources are in a mechanical environment characterized by limited stress and ***,the thermal effect has a more significant influence on the distribution and permeability characteristics of deep coal *** this study,the evolution history of highly metamorphic coal seams in Yangquan mining area was analyzed,and the main effect of magmatic activity on coal seams was *** on the determined vitrinite reflectance data of typical mines in Yangquan mining area,the maximum paleotemperature was calculated by adopting the Barker’s ***,the paleotemperature distribution in Yangquan mining area was summarized,and its relationship with the metamorphic degree was ***,a new permeability model considering the thermal strain was proposed to analyze the permeability evolution in deep coal seams at different ground ***,through a combination of the results of gas pressure and outburst number in Sijiazhuang Mine,Yangquan No.5 Mine and Xinjing Mine,the influence of ground temperature on the gas outburst risk in Yangquan mining area was *** following conclusions were drawn:The maximum paleotemperature in Yangquan area can be 303*** addition,the paleotemperature in the south is higher than that in the north of Yangquan mining *** various temperatures at different depths bring about different degrees of thermal stress to different coal seams,leading to different *** the fixed displacement boundary conditions in the deep,the coal seam folds and bends to varying ***,the difference in the ground temperature raises the a value of coal seams and lowers the permeability,which promotes the formation of gas-r

关键词： Gas outburst Metamorphic degree Geological structure Thermal evolution Yangquan mining area

Clathrin light chains regulate hypocotyl elongation by affecting the polarization of the auxin transporter PIN3 in Arabidopsis

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Journal of Integrative Plant Biology 2021年第11期63卷 1922-1936页

作者： Tianwei Hu Shoupeng Yin Jingbo Sun Yuting linghu Jiaqi Ma Jianwei Pan chao Wang Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations School of Life SciencesLanzhou UniversityLanzhou 730000China College of Chemistry and Life Sciences Zhejiang Normal UniversityJinhua 321004China College of Life Sciences Shaoxing UniversityShaoxing 312000China

PIN-FORMED(PIN)-dependent directional auxin transport is crucial for plant development. Although the redistribution of auxin mediated by the polarization of PIN3 plays key roles in modulating hypocotyl cell expansion, how PIN3 becomes repolarized to the proper sites within hypocotyl cells is poorly understood. We previously generated the clathrin light chain clc2-1 clc3-1 double mutant in Arabidopsis thaliana and found that it has an elongated hypocotyl phenotype compared to the wild type. Here, we performed genetic, cell biology, and pharmacological analyses combined with live-cell imaging to elucidate the molecular mechanism underlying the role of clathrin light chains in hypocotyl elongation. Our analyses indicated that the defects of the double mutant enhanced auxin maxima in epidermal cells, thus, promoting hypocotyl elongation. PIN3 relocated to the lateral sides of hypocotyl endodermal cells in clc2-1 clc3-1 mutants to redirect auxin toward the epidermal cell ***, the loss of function of PIN3 largely suppressed the long hypocotyl phenotype of the clc2-1 clc3-1 double mutant, as did treatment with auxin transport inhibitors. Based on these data, we propose that clathrin modulates PIN3 abundance and polarity to direct auxin flux and inhibit cell elongation in the hypocotyl, providing novel insights into the regulation of hypocotyl elongation.

关键词： Arabidopsis auxin clathrin light chains hypocotyl elongation PIN3

湖南省“五个方面”积极推动环保信用体系建设

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皮革制作与环保科技 2024年第1期5卷 151-153页

作者：唐江李巍许超舒丽娟令狐兴兵湖南省生态环境事务中心湖南长沙410000 湖南省环境保护科学研究院湖南长沙410012

环保信用评价是社会信用体系和生态文明制度体系建设的重要组成部分,也是促进绿色发展、强化环境治理能力现代化的重要手段。目前,我国环保信用体系建设处于地方自发实践探索阶段,尚未形成完善的制度体系。本文旨在总结湖南省开展环保... 详细信息

环保信用评价是社会信用体系和生态文明制度体系建设的重要组成部分,也是促进绿色发展、强化环境治理能力现代化的重要手段。目前,我国环保信用体系建设处于地方自发实践探索阶段,尚未形成完善的制度体系。本文旨在总结湖南省开展环保信用评价的经验和实践,为推进环保信用体系建设提供经验,也为将来我国环保信用评价走向规范化、制度化提供借鉴和参考。

关键词：环保信用制度机制信用评价

饲粮添加天然维生素E对蛋鸡产蛋后期生产性能、维生素E沉积、抗氧化功能和鸡蛋品质的影响

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动物营养学报 2021年第12期33卷 6771-6781页

作者：令狐克川王超张瑞强陈跃平温超周岩民南京农业大学动物科技学院南京210095

本试验旨在研究天然维生素E对蛋鸡产蛋后期生产性能、维生素E沉积、抗氧化功能和鸡蛋品质的影响。选取270只66周龄的海兰褐蛋鸡,随机分成3组,每组6个重复,每个重复15只蛋鸡。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮中添加100和200... 详细信息

本试验旨在研究天然维生素E对蛋鸡产蛋后期生产性能、维生素E沉积、抗氧化功能和鸡蛋品质的影响。选取270只66周龄的海兰褐蛋鸡,随机分成3组,每组6个重复,每个重复15只蛋鸡。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮中添加100和200 mg/kg天然维生素E的试验饲粮。试验期为42 d。结果表明:1)与对照组相比,饲粮中添加100和200 mg/kg天然维生素E使蛋鸡产蛋率分别提高了4.13%和3.01%,但差异不显著(P>0.05)。2)与对照组相比,饲粮中添加100和200 mg/kg天然维生素E可显著提高蛋鸡肝脏中维生素E含量(P<0.05),饲粮中添加200 mg/kg天然维生素E可显著提高蛋鸡血清中维生素E含量(P<0.05)。3)与对照组相比,饲粮中添加100和200 mg/kg天然维生素E均可显著提高空肠黏膜谷胱甘肽过氧化物酶(GSH-Px)活性(P<0.05);饲粮中添加200 mg/kg天然维生素E可显著提高肝脏GSH-Px活性和空肠黏膜过氧化氢酶(CAT)活性(P<0.05),并显著降低肝脏丙二醛(MDA)含量(P<0.05)。4)与对照组相比,饲粮中添加100和200 mg/kg天然维生素E均可以显著提高空肠黏膜铜锌超氧化物歧化酶(Cu/Zn-SOD)的mRNA相对表达量(P <0.05);饲粮中添加200 mg/kg天然维生素E可显著提高空肠黏膜核因子E2相关因子2(Nrf2)和谷胱甘肽过氧化物酶1(GSH-Px1)的mRNA相对表达量(P<0.05)。5)与对照组相比,饲粮中添加200 mg/kg天然维生素E可显著提高试验第21天鸡蛋的蛋白高度、哈夫单位和蛋壳厚度(P<0.05)。由此可见,饲粮中添加天然维生素E可在一定程度提高蛋鸡产蛋后期的产蛋率,促进肝脏中维生素E的沉积,增强蛋机体氧化功能和改善鸡蛋品质。从提高蛋鸡生产后期的生产性能来看,以添加100 mg/kg天然维生素E的效果较好;从改善蛋鸡生产后期的抗氧化功能及鸡蛋品质来看,以添加200 mg/kg天然维生素E的效果较好。综合考虑养殖经济效益和添加成本等因素,饲粮中以添加100 mg/kg天然维生素E为宜。

关键词：天然维生素E 蛋鸡产蛋后期生产性能抗氧化功能蛋品质

阳泉矿区差异地质构造对煤体突出物性参数的影响

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煤矿安全 2020年第9期51卷 20-23,29页

作者：令狐建设闫志铭徐超阳泉煤业(集团)有限责任公司技术中心山西阳泉045000 阳泉煤业(集团)有限责任公司博士后科研工作站山西阳泉045000 中国矿业大学(北京)应急管理与安全工程学院北京100083

为研究阳泉矿区地质构造的差异化特征及其对煤与瓦斯突出分布的控制规律,采用压汞实验、等温吸附实验、坚固性系数测定实验及瓦斯放散初速度测定实验,对煤样的微观孔隙结构及宏观突出多元物性参数进行了对比分析。结果表明:阳泉矿区地... 详细信息

为研究阳泉矿区地质构造的差异化特征及其对煤与瓦斯突出分布的控制规律,采用压汞实验、等温吸附实验、坚固性系数测定实验及瓦斯放散初速度测定实验,对煤样的微观孔隙结构及宏观突出多元物性参数进行了对比分析。结果表明:阳泉矿区地质构造分布受历史多期运动复合影响,在水平方向,地质构造复杂程度呈现中部>北部>南部的总体趋势;原生煤中孔隙形态主要以半开放型为主,而构造作用破坏了煤体的原始孔隙结构,使内生孔隙变为肚大颈小的孔隙结构,增大突出能量孕育及释放的危险性;在阳泉矿区中部,其宏观物性参数a值、b值以及瓦斯放散初速度最大,而坚固性系数最小,验证了阳泉矿区中部构造作用最为强烈的结论。

关键词：地质构造差异化特征孔隙结构损伤规律煤与瓦斯突出

数控轧辊磨床三点非接触式测量原理及误差分析与仿真

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机械设计与制造 2022年第9期379卷 43-48页

作者：李阔吴怀超令狐克均赵丽梅贵州大学机械工程学院贵州贵阳550025 贵州装备制造职业学院贵州贵阳551400

国内轧辊磨床生产厂家目前采用的测量方法为两点接触式测量方法,这类测量方法传动简单,在机测量无需多次搬运轧辊,一定程度上提高了工作效率;但其缺点也很明显,不能边加工边测量,测量精度不高无法参与程序运算,不能适时修正加工参数。... 详细信息

国内轧辊磨床生产厂家目前采用的测量方法为两点接触式测量方法,这类测量方法传动简单,在机测量无需多次搬运轧辊,一定程度上提高了工作效率;但其缺点也很明显,不能边加工边测量,测量精度不高无法参与程序运算,不能适时修正加工参数。通过学习研究前人研究成果提出了一种三点法非接触测量系统用于轧辊在线测量,该方法基于最小二乘法评判圆度误差并利用三点法误差分离技术(EST)分离出主轴的回转误差,基于MATLAB平台建立了该方法的数学模型,并对三点法测量的误差来源进行了分析,在误差分离数学模型的基础上建立了定位夹角误差对测量精度影响的数学模型,并仿真验证了该模型的正确性。

关键词：三点法误差分离技术三点法非接触测量误差分析数控轧辊磨床