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Tantalum pentoxide:a new material platform for high-performance dielectric metasurface optics in the ultraviolet and visible region

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Light(Science & Applications) 2024年第1期13卷 142-152页

作者： Cheng Zhang Lu Chen Zhelin Lin Junyeob Song Danyan Wang Moxin Li Okan Koksal Zi Wang Grisha Spektor David Carlson Henri J.Lezec wenqi zhu Scott Papp Amit Agrawal School of Optical and Electronic Information&Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhanHubei 430074China National Institute of Standards and Technology GaithersburgMD 20899USA University of Maryland College ParkMD 20742USA National Institute of Standards and Technology BoulderCO 80305USA

Dielectric metasurfaces,composed of planar arrays of subwavelength dielectric structures that collectively mimic the operation of conventional bulk optical elements,have revolutionized the field of optics by their potential in constructing high-efficiency and multi-functional optoelectronic systems on *** performance of a dielectric metasurface is largely determined by its constituent material,which is highly desired to have a high refractive index,low optical loss and wide bandgap,and at the same time,be fabrication ***,we present a new material platform based on tantalum pentoxide(Ta2O5)for implementing high-performance dielectric metasurface optics over the ultraviolet and visible spectral *** wide-bandgap dielectric,exhibiting a high refractive index exceeding 2.1 and negligible extinction coefficient across a broad spectrum,can be easily deposited over large areas with good quality using straightforward physical vapor deposition,and patterned into high-aspect-ratio subwavelength nanostructures through commonly-available fluorine-gas-based reactive ion *** implement a series of highefficiency ultraviolet and visible metasurfaces with representative light-field modulation functionalities including polarization-independent high-numerical-aperture lensing,spin-selective hologram projection,and vivid structural color generation,and the devices exhibit operational efficiencies up to 80%.Our work overcomes limitations faced by scalability of commonly-employed metasurface dielectrics and their operation into the visible and ultraviolet spectral range,and provides a novel route towards realization of high-performance,robust and foundry-manufacturable metasurface optics.

关键词： dielectric optics ultraviolet

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毛泽东青年思想的出场逻辑

中共南宁市委党校学报 2024年第1期26卷 26-31页

作者：朱文琦山东师范大学山东济南250358

高度重视青年工作是中国共产党成立百余年来不断发展壮大的宝贵经验。毛泽东青年思想的出场逻辑,在大跨度视野中深刻揭示了青年成长发展的历史背景、青年理应肩负的光荣使命和青年价值达成的根本路径,从时代逻辑、主体逻辑、实践逻辑三... 详细信息

高度重视青年工作是中国共产党成立百余年来不断发展壮大的宝贵经验。毛泽东青年思想的出场逻辑,在大跨度视野中深刻揭示了青年成长发展的历史背景、青年理应肩负的光荣使命和青年价值达成的根本路径,从时代逻辑、主体逻辑、实践逻辑三个基本向度全面彰显了中国共产党关心爱护青年、培养造就青年的优良传统。作为中国共产党青年思想的重要内容,毛泽东青年思想论述了青年工作的一般规律,反映了中国共产党青年工作的本质要求,在新的历史条件下历久弥新、熠熠生辉,对新时代青年工作具有重要借鉴和指导意义。

关键词：毛泽东青年思想时代逻辑主体逻辑实践逻辑

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论中华民族现代文明的内在规定

贵州民族大学学报（哲学社会科学版） 2024年第3期 45-57页

作者：朱文琦山东师范大学马克思主义学院山东济南250358

建设中华民族现代文明是贯彻落实习近平文化思想的内在要求。中国共产党领导是中华民族现代文明历史性出场的根本原因,也是中华民族现代文明的内在规定。这一内在规定集中表现为:一是定性。从文化救国、文化立国到文化兴国、文化强国,... 详细信息

建设中华民族现代文明是贯彻落实习近平文化思想的内在要求。中国共产党领导是中华民族现代文明历史性出场的根本原因,也是中华民族现代文明的内在规定。这一内在规定集中表现为:一是定性。从文化救国、文化立国到文化兴国、文化强国,来自人民、为了人民、造福人民始终是中华民族现代文明的根本价值立场。二是定位。中华民族现代文明属于社会主义文明范畴,实现了对资本主义文明的扬弃和超越,建设中华民族现代文明是社会主义精神文明建设的重要内容。三是定法。建设中华民族现代文明应强化思想引领、坚定文化自信、秉持开放包容、坚持守正创新,不断为强国建设、民族复兴厚植文化根基、注入精神动能。

关键词：习近平文化思想中华民族现代文明中华文明中国式现代化

新构造运动对渤海凸起区、斜坡—洼陷区浅层油气最终成藏的控制作用

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中国石油勘探 2024年第1期29卷 92-105页

作者：米立军徐建永刘志峰朱文奇吴斌中海油研究总院有限责任公司海洋油气勘探国家工程研究中心

浅层新近系馆陶组—明化镇组为渤海的主力含油气层系。新构造运动是渤海新生代晚期发生的对油气成藏影响最为深刻的构造事件,对浅层油气成藏的影响远大于深层,控制了渤海浅层油气最终成藏。研究表明,新构造运动导致的凹陷晚期快速生排... 详细信息

浅层新近系馆陶组—明化镇组为渤海的主力含油气层系。新构造运动是渤海新生代晚期发生的对油气成藏影响最为深刻的构造事件,对浅层油气成藏的影响远大于深层,控制了渤海浅层油气最终成藏。研究表明,新构造运动导致的凹陷晚期快速生排烃、多种类型圈闭发育、油气运移活跃等,整体上调整、控制了浅层油气藏的定型和分布,但对不同构造带浅层油气成藏的控制作用存在差异。根据构造位置和油气成藏特点,可将渤海浅层油气藏归为两大类:凸起区浅层油气藏、斜坡—洼陷区浅层油气藏。通过系统分析两类构造带浅层油气的成藏特点,明确新构造运动对两类构造带油气最终成藏的控制作用与富集模式差异,并构建了相应成藏模式。凸起区的浅层具有“晚期油源断层+浅层稳定储盖组合”的“台阶”型油气成藏模式;斜坡—洼陷区的浅层具有“洼中隆+晚期断层”“深层运移脊+晚期断层”两种“倒漏斗”型油气成藏模式。渤海浅层已进入了以岩性油气藏为主的勘探阶段,应加强新构造运动控制下的“晚期运移断层+岩性圈闭”组合勘探。

关键词：新构造运动渤海浅层油气藏凸起区斜坡—洼陷区成藏模式 “倒漏斗”型

Formation Mechanism of Precursor Films at High Temperatures:A Review

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Chinese Journal of Mechanical Engineering 2022年第4期35卷 42-52页

作者： Qiaoli Lin Lu Liu wenqi zhu State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal Lanzhou University of TechnologyLanzhou 730050China

The formation of a precursor flm(PF)is always coupled with better wettability;thus,clarifying the formation mechanism is required to optimize the interfacial ***,recent research focuses on inert wetting systems at room temperature,which cannot guide practical material processing at high *** this review,PF formation mechanisms at high temperatures were *** mechanisms are surface difusion,evaporation–condensation,subcutaneous infltration,and rapid absorption and flm *** experimental metal/metal systems,the most probable mechanism is subcutaneous infltration,related to the apparent contact angle,radius,and height of the gap between the substrate metal and the oxide *** rapid absorption and flm overfow mechanism usually occurs in metal/ceramic *** PF appearance for the adsorption mechanism must satisfy the paradox,that is,the relative inertial and high-afnity liquid/solid ***,another possible mechanism of PF appearance for the reactive wetting system at high temperatures was proposed,that is,the thin-surface transport *** PF formation is sensitive to external ***,it is necessary to develop thermodynamic and dynamic models for predicting and simulating PFs.

关键词： Wettability Wetting foot Halo Difusing band

Gas-solid flow in a high-density circulating fluidized bed riser with Geldart group B particles

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Particuology 2016年第6期14卷 103-109页

作者： Jian Chang KaiZhang wenqi zhu Yongping Yang Beijing Key Laboratory of Emission Surveillance and Control for Thermal Power Generation North China Electn'c Power University Belting 102206 China

We carried out experiments to explore and characterize the gas-solid flow dynamics of Geldart group B particles in a dense circulating fluidized bed riser. By reducing the pressure drop across the solid control valve and increasing the solid inventory in the storage tank, a high solid circulation rate and a solid holdup above 0.075 throughout the riser were simultaneously achieved. At a solid-to-gas mass flux ratio of approximately 105, flow transitioned from fast fluidization to a dense suspension upflow. In the axial direction of the riser, solid holdup had an exponential profile, increasing with increasing solid circulation rate and Jot decreasing superficial gas velocity. From the riser＇s center to its wall, the solid holdup increased markedly, exhibiting a steep parabolic profile. Increasing the solid circulation rate increased the radial non-uniformity of the solid concentration, while increasing the superficial gas velocity had the opposite effect, In our dense circulating fluidized bed riser, Geldart group B particles had similar slip characteristics to Geldart group A particles,

关键词： Circulating fluidized bed riser Dense gas-solid flow High density High flux Hydrodynamics Geldart group B particle

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江苏省蛇类新纪录——东亚腹链蛇

野生动物学报 2024年第1期45卷 216-221页

作者：叶琳朱文启章铁睿虞磊高国富包浩然南京农业大学生命科学学院南京210095 南京八三医院南京211131 安徽师范大学生命科学学院芜湖241000 安徽大学生命科学学院合肥230601

2022年7—9月,在江苏省宁镇山脉的南京汤山(32°3’59’’N,119°1’2’’E;海拔179 m)和句容市宝华山(32°7’40’’N,119°5’33’’E;海拔288 m)共采集到蛇类标本5号。通过形态学比对和分子系统学分析,确认标本均为水游蛇科(Natricid... 详细信息

2022年7—9月,在江苏省宁镇山脉的南京汤山(32°3’59’’N,119°1’2’’E;海拔179 m)和句容市宝华山(32°7’40’’N,119°5’33’’E;海拔288 m)共采集到蛇类标本5号。通过形态学比对和分子系统学分析,确认标本均为水游蛇科(Natricidae)东亚腹链蛇属(Hebius)东亚腹链蛇[***(Boie,1826)],为江苏省蛇类分布新纪录,也是本种在长江以南地区的首次发现。

关键词：东亚腹链蛇新分布纪录系统发生分析江苏省宁镇山脉

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坚持人民至上的唯物史观阐释

辽宁行政学院学报 2024年第2期 24-30页

作者：朱文琦孙绪民山东师范大学山东济南250358 山东科技大学山东青岛266590

坚持人民至上是习近平新时代中国特色社会主义思想的根本立场,是开辟马克思主义中国化时代化新境界的重要世界观和方法论,也是唯物史观意蕴的时代彰显。唯物史观为坚持人民至上提供哲学依据、明确政治立场、标识核心理念、指引实践导向... 详细信息

坚持人民至上是习近平新时代中国特色社会主义思想的根本立场,是开辟马克思主义中国化时代化新境界的重要世界观和方法论,也是唯物史观意蕴的时代彰显。唯物史观为坚持人民至上提供哲学依据、明确政治立场、标识核心理念、指引实践导向。坚持人民至上,是唯物史观基本原理的具体运用和创新表达,具有深厚的学理渊源和实践支撑,彰显了中国共产党作为马克思主义政党的历史使命和理论自觉,展现出中国共产党在我是谁、为了谁、依靠谁问题上的高度清醒,昭示着新时代中国特色社会主义的光明前景。

关键词：新时代人民至上唯物史观中国共产党

Study on fault-controlled hydrocarbon migration and accumulation process and models in zhu I Depression

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Acta Oceanologica Sinica 2021年第2期40卷 107-113页

作者： wenqi zhu Keqiang Wu Ling Ke Kai Chen Zhifeng Liu CNOOC Research Institute Co. Ltd.Beijing 100028China

Through the analysis of the faults and their internal structure in zhu I Depression,it is found that the internal structure of the late fault is obviously segmented *** develops unitary structure(simple fault plane)in shallow layers,binary structure(induced fracture zone in hanging wall and sliding fracture zone in footwall)in middle,layers and ternary structure(induced fracture zone in hanging wall and sliding fracture zone in middle,and induced fracture zone in footwall)in deep *** the induced fracture zone is a high porosity and permeability zone,and the sliding fracture zone is a low porosity and ultra-low permeability zone,the late fault in middle layers has the character of"transporting while sealing".The late fault can transport hydrocarbon by its induced fracture zone in the side of the hanging wall and seal hydrocarbon by its sliding fracture zone in the side of the *** deep layers,the late fault has the character of"dual-transportation",induced fracture zones in both sides of hanging wall and footwall can transport *** early fault that only developed in the deep layers is presumed to be unitary structure,which plays a completely sealing role in the process of hydrocarbon migration and accumulation due to inactivity during the hydrocarbon filling *** by hydrocarbon source,early/late faults,sand bodies and traps,two reservoir-forming models of"inverted L"and"stereo-spiral"can be proposed in middle layers,while two reservoir-forming models of"cross fault"and"lateral fault sealing"are developed in the deep layers of zhu I Depression.

关键词： fault structure transport/sealing migration and accumulation process reservoir-forming model zhu I Depression