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Non-planar dielectrics derived thermal and electrostatic field inhomogeneity for boosted weather-adaptive energy harvesting

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National Science Review 2023年第9期10卷 248-257页

作者： Yi Zhou Tianpeng Ding Yin cheng Yi Huang Wu Wang Jianmin Yang lin Xie Ghim Wei Ho Jiaqing He Shenzhen Key Laboratory of Thermoelectric Materials and Department of Physics Southern University of Science and Technology 2. Department of Electrical and Computer Engineering National University of Singapore School of Electronic Science and Engineering State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of China Department of Materials Science and Engineering National University of Singapore Institute of Materials Research and Engineering Agency for ScienceTechnology and Research (A*STAR) GuangdongHong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices Southern University of Science and Technology

Weather-adaptive energy harvesting of omnipresent waste heat and rain droplets,though promising in the field of environmental energy sustainability,is still far from practice due to its low electrical output owing to diele ctric structure irrationality and *** we present atypical upcycling of ambient heat and raindrop energy via an all-in-one non-planar energy harvester,simultaneously increasing solar pyroelectricity and droplet-based triboelectricity by two-fold,in contrast to conventional *** delivered non-planar dielectric with high transmittance confines the solar irradiance onto a focal hotspot,offering transverse thermal field propagation towards boosted inhomogeneous polarization with a generated power density of 6.1 mW m-2at 0.2 ***,the enlarged lateral surface area of curved architecture promotes droplet spreading/separation,thus travelling the electrostatic field towards increased *** enhanced pyroelectric and triboelectric outputs,upgraded with advanced manufacturing,demonstrate applicability in adaptive sustainable energy harvesting on sunny,cloudy,night,and rainy *** findings highlight a facile yet efficient strategy,not only for weather-adaptive environmental energy recovery but also in providing key insights for spatial thermal/electrostatic field manipulation in thermo electrics and ferroelectrics.

关键词： non-planar dielectrics heat manipulation pyroelectrics weather-adaptive energy harvesting

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盾构渣土资源化处理与多元化应用

广东土木与建筑 2024年第3期31卷 14-17,33页

作者：林珊夏星宇阮艳妹程从密宋辰峰广州地铁设计研究院股份有限公司广州510010 广州大学广州510006

我国盾构施工技术应用广泛,而盾构渣土作为一种建筑垃圾,也亟待进行资源化处理和多元化应用。参照国内外的划分标准,对盾构渣土做出了恰当合理的分类,又介绍了盾构渣土的理化性能。考虑到盾构施工技术未来发展的前景,对盾构渣土的预处... 详细信息

我国盾构施工技术应用广泛,而盾构渣土作为一种建筑垃圾,也亟待进行资源化处理和多元化应用。参照国内外的划分标准,对盾构渣土做出了恰当合理的分类,又介绍了盾构渣土的理化性能。考虑到盾构施工技术未来发展的前景,对盾构渣土的预处理技术也进行了整理,包括渣土分选技术、土性改良技术、脱水技术和除铁技术等。文章重点介绍盾构渣土的综合利用途径。当渣土掺量是水泥的15%时,C30混凝土的抗渗性能达到最优。当渣土掺量是水泥的7.5%时,C50混凝土的抗压强度达到最高。此外,盾构渣土在制作人造板材、烧结砖、免烧砖、陶粒、陶瓷等方面均有不俗表现。

关键词：盾构渣土资源化处理多元化应用理化性能

一株滁菊酚酸降解菌的筛选及其促生能力的研究

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浙江农业科学 2024年第6期65卷 1375-1378页

作者：吴瑞陈雨婷曹启荣朱琳周成安徽科技学院资源与环境学院安徽滁州233100 安徽科技学院生命与健康科学学院安徽滁州233100 南京农业大学资源与环境科学学院江苏南京210095

随着滁菊长期连续种植,土壤中积累了大量的酚酸类化合物,酚酸降解菌可以通过降解土壤中的酚酸类化合物来缓解连作障碍。该研究从滁菊连作土壤中分离了85株酚酸降解菌,通过测定菌株的降解效率及其促生效果,筛选出一株具有滁菊酚酸降解能... 详细信息

随着滁菊长期连续种植,土壤中积累了大量的酚酸类化合物,酚酸降解菌可以通过降解土壤中的酚酸类化合物来缓解连作障碍。该研究从滁菊连作土壤中分离了85株酚酸降解菌,通过测定菌株的降解效率及其促生效果,筛选出一株具有滁菊酚酸降解能力的根际促生菌。鉴定结果表明,该菌株为伯克霍尔德氏菌属VA-7,对各类酚酸降解率均在45%以上,且具备固氮、解磷、解钾、产铁载体和产生长素(IAA)的能力。研究结果为缓解滁菊的连作障碍提供新的理论依据。

关键词：连作障碍酚酸类物质酚酸降解菌根际促生菌

Interpretation of the η1(1855) as a K■1(1400) + c.c. molecule

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Science China(Physics,Mechanics & Astronomy) 2022年第6期65卷 64-70页

作者： xiang-Kun Dong Yong-Hui lin Bing-Song Zou CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Physical Sciences University of Chinese Academy of Sciences Helmholtz-Institut für Strahlen-und Kernphysik and Bethe Center for Theoretical Physics Universit?t Bonn School of Physics Central South University

An exotic state with JPC= 1-+, denoted by η1(1855), was observed by BESⅢ Collaboration recently in J/ψ → γηη′. The fact that its mass is just below the threshold of K■1(1400) stimulates us to investigate whether this exotic state can be interpreted as a K■1(1400) + c.c. molecule or not. Using the one boson exchange model, we show that it is possible for K■1(1400) with JPC= 1-+to bind together by taking the momentum cutoff Λ ≥2 Ge V and yield the same binding energy as the experimental value when Λ ≈ 2.5 GeV. In this molecular picture, the predicted branch ratio Br(η1(1855) → ηη′) ≈ 15% is consistent with the experimental results, which again supports the molecular explanation of η1(1855). Relevant systems, namely K■1(1400) with JPC= 1--and K■1(1270) with JPC= 1-±, are also investigated, some of which can be searched for in the future experiments.

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基于正畸患者需求行为分析的矫治器选择服务研究

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中国美容医学 2024年第9期33卷 171-174页

作者：余瑞林聪程平王红孔海燕陈叶俊安徽医科大学附属口腔医院正畸科安徽合肥230032 安徽医科大学附属口腔医院医院感染管理部安徽合肥230032 安徽医科大学口腔医学院安徽合肥230032 安徽医科大学附属口腔医院VIP诊室安徽合肥230032

目的:通过调查安徽省某口腔医院正畸患者对矫治器选择的现状,了解口腔正畸患者的实际需求,从而为正畸科医生在诊治过程中有效沟通与精准治疗提供参考依据。方法:选取2023年1月-2023年5月在安徽省某口腔医院正畸科接受正畸矫治的330例患... 详细信息

目的:通过调查安徽省某口腔医院正畸患者对矫治器选择的现状,了解口腔正畸患者的实际需求,从而为正畸科医生在诊治过程中有效沟通与精准治疗提供参考依据。方法:选取2023年1月-2023年5月在安徽省某口腔医院正畸科接受正畸矫治的330例患者作为研究对象,采用问卷调查法,根据Angle安氏错牙合畸形分类方法对患者进行分类,分析不同年龄、性别、居住地、错牙合畸形类别对矫治器倾向选择和实际选择的影响。结果:330例患者中牙齿畸形类型以安氏Ⅱ类为主(59.09%);就诊最期待能够解决的问题是牙齿不齐,其次是嘴巴外突和牙齿间隙过大;出于经济、舒适、美观等方面考虑,进口金属自锁托槽在实际应用中占比最高(57.27%);不同年龄、性别的患者选择的矫治器类型差异有统计学意义(P<0.05)。结论:正畸医生在为患者提供正畸矫治方案时,应询问患者对矫治器的选择倾向,并考虑患者年龄、性别、错牙合畸形类型等情况,给患者提出专业指导。

关键词：口腔正畸医患沟通选择倾向口腔矫治器

Inflammatory Myofibroblastic Tumor Mimicking Malignant Meningioma in the Middle Cranial Fossa:a Case Report

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Chinese Medical Sciences Journal 2012年第3期27卷 185-187页

作者： Ming-chao Fan Lei cheng Dong-liang lin Peng Sun Department of Neurosurgical Intensive Care UnitQingdao University QingdaoShandong 266003China Department of Neurosurgery Qingdao UniversityQingdaoShandong 266003China Department of Pathology the Affiliated Hospital of Medical CollegeQingdao UniversityQingdaoShandong 266003China

INFLAMMATORY myofibroblastic tumor（IMT）,alsoknown as inflammatory pseudotumor or plasma cellgranulomas,is an uncommon fibro-inflammatorylesion which is composed of inflammatory cells andmyofibroblastic spindle cells.1Its pathogenesis is still *** tumor commonly occurs in the lung,upperrespiratory tract,live,orbit,abdominal membrane,retro-peritoneum,and genitourinary tract.2-4It rarely involvesthe central nerve system,5,

关键词： inflammatory myofibroblastic tumor middle cranial fossa histopathology craniotomy

Properties of L-band differential InSAR for monitoring mining-induced subsidence in coalfield of Jining, Northern China

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Journal of Central South University 2014年第4期21卷 1508-1517页

作者：陶秋香刘国林 Geomatics College Shandong University of Science and Technology Key Laboratory of Surveying and Mapping Technology on Island and Reef of National Administration of Surveying Mapping and Geoinformation

The properties and feasibility of L-band differential InSAR for detecting and monitoring mining-induced subsidence were systematically analyzed and demonstrated. The largest monitored subsidence gradient of 7.9×10-3 and magnitude of 91 cm were firstly derived by theoretical derivation. Then, the stronger phase maintaining capacity and weaker sensitivity to minor land subsidence compared with C-band DInSAR were illustrated by phase simulation of the actual mine subsidence. Finally, the data processing procedure of two-pass DInSAR was further refined to accurately observe subsidence of a coalfield of Jining in Northern China using 7 ALOS PALSAR images. The largest monitored subsidence magnitude of 39.22 cm and other properties were better investigated by testing results interpretation and subsidence analysis, and the absolute difference varying from 0.5 mm to 17.9 mm was obtained by comparison with leveling-measured subsidence. All of results show that L-band DInSAR technique can investigate the location, amount, area and other detailed subsidence information with relatively higher accuracy.

关键词： L-band differential InSAR ALOS PALSAR mine subsidence monitoring

Rational fabrication of ordered porous solid strong bases by utilizing the inherent reducibility of metal-organic frameworks

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Nano Research 2022年第4期15卷 2905-2912页

作者： Song-Song Peng xiang-Bin Shao Yu-Xia Li Yao Jiang Chen Gu Manish Kumar Dinker Xiao-Qin Liu(✉) lin-Bing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech University30 South Puzhu RoadNanjing 211816China

Ordered porous solid strong bases(OPSSBs)have attracted great research interest due to the excellent performance as heterogeneous catalysts in various *** main obstacle for fabricating OPSSBs is the requirement of high temperature to produce strong basicity on ordered porous *** example,the temperatures of 600-650℃ are required for the decomposition of base precursor NaNO_(3)to basic sites on mesoporous silica SBA-15 and zeolite *** high decomposition temperatures are energy-intensive and harmful to the structure of ***,we report the fabrication of OPSSBs by utilizing the redox interaction between base precursor and low-valence metal centers(e.g.,Cr^(3+))in metal-organic frameworks(MOFs).The base precursor NaNO_(3)on MIL-101(Cr)can be converted to basic sites entirely at 300℃,which is quite lower than those of the conventional thermal conversion on SBA-15 and zeolite Y(600-650℃).The exploration on decomposition mechanism reveals that the valence change of Cr^(3+)to Cr^(6+)takes place during the conversion of NaNO_(3)to basic *** this way,MOFs-derived base catalysts have been synthesized successfully by the host-guest redox strategy and exhibit high catalytic activity in typical base-catalyzed reactions.

关键词： metal-organic frameworks ordered porous solid strong bases host–guest redox interaction transesterification reaction Cr centers

Softening and recrystallization behavior of a new class of ferritic steel

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Journal of Iron and Steel Research International 2019年第2期26卷 154-161页

作者： xiang-yu Xu Jian-zhe Li Xue-min Wang Wei Zhang Qian-nan Liu cheng-jia Shang R.D.K.Misra Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing 100083China School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Laboratory for Excellence in Advanced Steel Research Materials Science and Engineering ProgramDepartment of MetallurgicalMaterials and Biomedical EngineeringUniversity of Texas at El PasoEl PasoTX 79968USA

In order to clarify the recrystallization mechanism of low-densityδ-ferrite steel Fe-4AI-2Ni,interrupted and single-pass compression tests were carried *** this regard,five deformation temperatures(750-950 at an interval of 50°C)and different hold time were *** was observed that the softening and recrystallization fraction was enhaneed with increased deformation temperature and hold *** original grain bounclaries were the preferred nucleation sites for recrystallized grains,and recrystallization had an impact on obtaining homogeneous and fine-grained *** in the ferritic alloy commenced after a significant degree of softening,and the softening associated with recovery was appreciably *** optimum rolling deformation temperature was identified to be greater than 900°C.

关键词： δ-ferrite steel Interrupted compression test Recovery Recrystallization